DE102015004970A1 - Lighting system with a camera - Google Patents

Abstract

The invention relates to an illumination system (1) with an opto-electronic unit for image acquisition (5) integrated in the illumination system (1). The integration of the optoelectronic unit for image acquisition (5) is embodied such that an image of an image acquisition area (24) of a lying surface (21) arranged outside the illumination system (1) is provided by means of an optical deflection element (9) arranged in the illumination system (1). is deflected to the opto-electronic unit for image acquisition (5).

Description

The present invention relates to a lighting system with an image acquisition unit integrated in the lighting system.

Lighting systems are used in many situations and applications of daily life, in particular in the surgical-medical or dental-medical environment, for example, as lighting in the clinical operating room to illuminate and illuminate the working environment and the patient. Illumination systems with a camera integrated in the illumination system for image acquisition are known from various fields of application. In object monitoring and also in production monitoring, combinations of camera systems and lighting systems are used to protect objects or buildings against unauthorized access or to detect and document errors in production processes. Another field of application is laboratory technology, where in the area of microscopy cameras with light sources and microscopes for video microscopy are combined.

Examinations of cavities are possible with special endoscopes, which are designed as a combination of camera and light source. Further fields of application are traffic monitoring and guidance systems in which cameras with infrared light emitters, for example for the detection of license plates for the purpose of access control or traffic control, are often used in combination with traffic signal systems (traffic lights). From the field of medical technology, various fields of application can be mentioned.

For example, from biomechanics measuring systems with cameras in conjunction with a lighting for movement or gait analysis of persons are known, which are often used to document treatment histories. From the field of endoscopic surgery, combinations of camera systems and light sources are known as prior art. In the EP 0 501 088 B1 For example, an endoscope with a coupled camera lens is described. In the WO1999 / 009878 A1 is a surgical endoscope described with a camera. A dental camera for examinations with image acquisition in the oral cavity with a mirror for image deflection is for example from the US 4,915,626 known. In the field of lighting equipment of medical operating rooms, surgical lights are known with a camera as the closest prior art to the present invention. For example, this describes EP 2 169 965 B1 a surgical light with light emitting diodes as a light source and with a camera. The camera serves according to the EP 2 169 965 B1 for detecting a color temperature of the light emitted by the light emitting diodes. The US2011 / 0037840 describes an operating light with a camera which captures an image of an operating field and generates an image signal therefrom. The image signal can then be used to document activities below an operation, for example, the documentation of a surgical procedure.

Ergonomically advantageous for the application of a lighting system with image capture for documentation, it is when changes in the spatial position of the lighting system, or the operating light when operating the operating light by a user and thus the spatial orientation of the light emitted by the illumination system, the orientation of the image capture of User does not have to be operated in a further operation for image acquisition independent of the position control.

A technical solution in which the orientation of the image acquisition of the spatial alignment of the light emitted by the illumination system follows automatically, then arises when the elements for image acquisition, such as a camera, centrally on the surgical light with orientation to the outside, preferably below the surgical light, preferably in a centrally projecting from the operating light gripping element (handle) are arranged. If there is a camera used for image capture, which has a large adjustment range in terms of magnification, the result is a fixed size, or length of the camera for the boundary conditions of construction and dimensions of the surgical light.

An arrangement of a camera with a large length below the surgical light, for example, centrally and centrally arranged in the handle element and designed to operate the surgical light can be disturbing when using the operating light during the operation of an operation from an ergonomic point of view. In particular, in a pivoting camera the then, due to the size of the camera, the very large centrally arranged handle element disadvantageous to the work of the user, because especially in the head area this handle can make the activities of the user on the patient very difficult. Therefore, from an ergonomic point of view, it would be advantageous if the operating elements and the image acquisition configurations minimize the user's use of the surgical light, for example as an illumination source above an operating table, in his activities during the performance of surgical, obstruct microsurgical, orthopedic or endoscopic examinations. In addition to the ergonomic aspects, especially in the design of a surgical light with an imaging system for clinical use nor the boundary conditions of the use of surgical lights in the clinical, medical, as well as dental environment are issues relating to hygienic treatment, such as disinfection or sterilization. of great importance.

If, for example, sterilization of operating or gripping elements in surgical lights is unavoidable due to the hygienic requirements in the field of surgery, the above-described arrangement of the camera in the gripping element can only be achieved with high technical complexity, because successful sterilization of surfaces means that inactivation all microorganisms (viruses) present on these surfaces must be made.

A disinfection of surfaces or objects means that a targeted reduction of bacterial counts must take place on these surfaces or objects. Typical methods of disinfection are, for example, the wipe disinfection with alcohol solutions (propyl alcohol, ethyl alcohol) or peracetic acid. A typical method of sterilization is, for example, the steam sterilization with superheated steam at a predetermined temperature of (eg 134 ° C.) and predetermined pressure (eg 2 bar) for a fixed period of time with the aid of a so-called autoclave. This results in requirements for the shape and / or material of the surfaces of the handle element, as well as the constructive installation of the camera in the handle element and the arrangement of the handle element on the surgical light An arrangement of a camera in a centrally arranged handle element therefore causes complex constructive and thus Also financially complex measures to ensure in clinical operation that the surfaces of the lighting system, in particular the handle element can be hygienically processed. This problem can be solved, for example, with an additional component to be used during the operation, which sterilisably covers the grip element and the camera hygienically tight in use or, for example, by a special embodiment of a removable sterilizable grip element camera combination with special Connection and fastening technology.

Inspired by the described disadvantages of the prior art, the present invention has the object to provide a lighting system, in particular a surgical light, with an integrated image acquisition system.

A further object of the present invention is an improvement in ergonomics for use of the illumination system with integrated image capture system as a surgical light, in particular with regard to the ergonomics in the head region of a user.

Another object of the present invention is to improve the possibilities for a hygienic treatment of the illumination system in use as a surgical light in the surgical-medical or dental-medical environment.

These and other objects are achieved with a lighting system having the features of claim 1.

Advantageous embodiments of the invention will become apparent from the subclaims and are explained in more detail in the following description with partial reference of the figures.

• – mindestens ein Beleuchtungselement,
• – ein opto-elektronische Einheit zur Bilderfassung mit einem optischen Element zur Lichtführung als eine Bildeintrittsöffnung,
• – eine optisches Umlenkelement,
• – eine Bildverarbeitungseinheit

auf.An inventive lighting system has as essential elements

• At least one lighting element,
• An opto-electronic unit for image acquisition with an optical element for guiding light as an image entry opening,
• An optical deflecting element,
• An image processing unit

on.

According to the invention, the at least one illumination element, the optoelectronic unit for image acquisition, the optical deflection element and the image processing unit are arranged in a common housing of the illumination system. The illumination system according to the invention is designed in particular as a surgical light for clinical or medical as well as dental applications.

The illumination system according to the invention, in particular in one embodiment as a surgical light, has at least one illumination element. Usually and preferably, a plurality of lighting elements, for example configured as light-emitting diodes (LED), are arranged in the housing and bring about illumination of an illumination area located outside, in particular below or, in special situations of surgical interventions, also above the illumination area. The illumination area is aligned in the direction of a vertical center axis of the illumination system of the illumination system. The footprint is generated with one of the at least one lighting element Light beam illuminated in the direction of a vertical center axis of the illumination system.

Also outside, preferably substantially below or above the illumination system is an image capture area.

The image capture area is aligned in the direction of the vertical center axis of the illumination system of the illumination system.

In one application of the illumination system as an operating light is in a conventional Einsatzkonstellation below the operating light, a lying surface, an operating table or a dental-medical examination chair to a recording, or storage of a patient, which are illuminated as a footprint of the operating light with the light beam. For example, medical examinations or surgical procedures (surgery, endoscopy, orthopedics) or dental treatments are performed on such an operating table or examination chair.

The surgical light is aligned in use in such a way that the light beam, the illumination area, d. H. partially or completely illuminated the lying surface, the operating table or the dental-medical examination chair. In addition to the illumination area, an imaging area is created on the lying surface, the operating table or the dental-medical examination chair. The image capture area is an area or subarea of the footprint area or an area overlapping the footprint area, or a subarea of interest for image capture and / or image capture, for example, for visualization or documentation purposes during the performance of a surgical procedure.

The opto-electronic imaging unit is aligned in the illumination system with the image entry port outside the vertical center axis.

In order that the image information from the image capture area can reach the image acquisition unit arranged in the housing of the illumination system or in the housing of the surgical light, the optical deflection element in the housing of the illumination system is aligned in this way, an image of the image capture area to the optoelectronic To redirect unit to image capture.

The deflection of the image of the image capture area by means of the optical deflection element on the opto-electronic unit for image acquisition is preferably carried out substantially at right angles or approximately at right angles.

The deflection of the image of the image-capturing area is achieved by the optical deflecting element such that the optical deflecting element has a mirrored surface oriented towards the optoelectronic image-capturing unit or is designed as a mirror, with the mirrored surface facing the optoelectronic unit is aligned for image capture.

The mirrored surfaces or the mirror can be formed planar or curved. In such a preferred embodiment of the optical deflection element, the mirror surfaces are designed to concave or convex-curved mirror surfaces and provided to allow adjustments of an image section of the image detection area in dimension or position, such as a selection of an extension of the image detection area. Further embodiments of the optical deflection element are embodiments as a prism or an aspherical, as well as spherical optical element.

In a particular embodiment, it is provided that an adjustment of a surface shape or a configuration of the curvature is provided by means of mechanical, piezoelectric or electromotive elements to adjust the optical deflecting element in use of the operating light to adjustments of an image detail in the image capture area during operation of the operating light.

The opto-electronic unit for image acquisition is, for example, as a camera with an opto-electronic semiconductor sensor, preferably as a photo or a video camera with high image resolution (High Definition Video, HD: 800 by 720 pixels, full HD: 1920 by 1080 pixels) Pixels) and a large magnification range.

The large magnification range (zoom) is formed, for example, with an adjustable magnification of 0.1 times to 200 times, which usually consists of a combination of an optical magnification in the range of 0.1 times to 10 times with a so-called digital image processing digital magnification in the range of 1-fold to 30-fold in camera systems is realized.

The alignment of the opto-electronic imaging unit in the illumination system outside the vertical center axis is in a preferred embodiment, as a substantially parallel orientation of the image entry port of the opto-electronic unit for image acquisition a horizontal reference plane of the lighting system designed.

The opto-electronic unit for image acquisition has an optical element for guiding light, for example formed in the form of an objective, as a configuration of the image entry opening. Such a lens serves both to a distance setting in the image capture in the image capture area, as well as to a range selection (zoom) by means of the adjustable magnification.

The opto-electronic unit for image acquisition is designed to detect the deflected image as a projected image of the image capture area, which passes through the deflection by means of the optical deflection element, preferably substantially horizontally, in the illumination system to the opto-electronic unit for image capture.

The opto-electronic unit for image acquisition has an opto-electronic sensor, which is also called photo chip in the usual jargon. The optoelectronic sensor is designed and provided for converting the image information of the deflected image of the image capture area into a form of digital signals and for providing the image processing unit with color and / or grayscale and / or brightness information of the projected onto the optoelectronic sensor Represent image of the image capture area.

The image processing unit is configured to further process the provided digital signals of the opto-electronic unit for image acquisition, thereby correcting for changes in a horizontal and vertical image perspective of the projected image of the image capture area caused by the optical deflection element and a corrected image which, in terms of image perspective, represents a substantially identical image of the image capture area and provides an output representing the corrected image.

Changes in the horizontal and vertical image perspective of the image of the image capture area are changes in the image due to mirroring on a vertical axis of symmetry with respect to interchanging left-sided and right-sided image elements with each other or by mirroring on a horizontal axis of symmetry changes in the image with respect to a Exchange of top and bottom picture elements with each other.

Further changes in the horizontal and vertical image perspective of the image of the image capture area are in the sense of the present invention by special embodiments of the optical deflection conditional image distortions, which, for example, in embodiments of the optical deflection element as aspheric, spherical concave or convex-curved mirror surfaces result.

Embodiments of the optical deflecting element with concave or convex-curved mirror surfaces or aspherical or spherical surfaces are provided in a preferred embodiment such that adjustments in dimensions or position of an image section of the image-capturing region or the position of the image-capturing region are made possible.

The image processing unit can be arranged both as a separate unit in the illumination system, but the image processing unit can also be designed as an element or subcomponent of the optoelectronic unit for image acquisition and arranged therein.

In a preferred embodiment, in or in front of the optoelectronic unit for image acquisition in front of the optical element for guiding light a Störlichtblende is arranged such that no stray light, which is caused by the at least one lighting element, to the optical element for Lichtführung-, and thus into the opto-electronic unit for image capture hinein- can get.

In a preferred embodiment, the optical deflection element is designed to be movable and adjustable in order to set a center point of the image detection area in relation to a center point of the illumination area. The optical deflecting element can thereby be tilted or tilted at an angle with the aid of fastening means, such as arrangements of hinges, angles, screws, bolts and adjusting means, such as adjusting screws, so that a position of the image sensing area can be set on the lying surface arranged beneath the illumination system can. In a particular embodiment of this preferred embodiment it is provided that one or more electromotive elements are provided with associated elements for control and operation of the electromotive element or the electromotive elements to the optical deflecting element in use of the operating light in relation to the center of To set the illumination area.

In a preferred embodiment, the optical deflecting element is substantially centered arranged on the vertical center axis of the operating light in the housing of the surgical light. The deflecting element is arranged at an angle of 45 ° to the vertical central axis of the surgical lamp and thereby aligned to redirect image information from the image capture area to a projection on the arranged in the opto-electronic unit for image capture opto-electronic semiconductor sensor.

In a further preferred embodiment, the optical deflection element and the optoelectronic image acquisition unit are arranged substantially not centered on the vertical center axis of the operating light in the housing of the operating light. As a result, a structural design of the surgical light is made possible, in which the central axis of the surgical light for an arrangement of other or further components, for example, for an arrangement of central and central handle for operating the operating light, for example, designed with controls for lighting control of the operating light, such as Hell / Dark settings or focus settings for the footprint remains reserved.

In a first variant of this further preferred embodiment, the optical deflecting element and the optoelectronic image capturing unit are arranged on the same side outside the vertical central axis of the surgical lamp in the housing of the surgical lamp and the optical deflecting element at an angle <45 °, preferably in one area arranged and aligned from 30 ° to 43 ° to the vertical center axis of the surgical lamp, to redirect image information from the image capture area to a projection on the arranged in the opto-electronic unit for image acquisition opto-electronic semiconductor sensor.

In a second variant of this further preferred embodiment, the optical deflecting element and the optoelectronic imaging unit are arranged on different sides outside the vertical central axis of the surgical lamp in the housing of the surgical lamp and the optical deflecting element is at an angle> 45 °, preferably in a range 47 ° to 60 °, arranged to the vertical center axis of the surgical lamp and aligned to redirect image information from the image capture area to a projection on the arranged in the opto-electronic unit for image acquisition opto-electronic semiconductor sensor.

In a further preferred embodiment, the surgical light on the underside at least one light-transmissive element, which is formed substantially as a closed surface and the housing of the operating light substantially completely closes. This translucent element is preferably designed as a substantially planar translucent disk or an array of substantially planar translucent disk elements, for example as a glass, mineral glass or a plastic disk (acrylic glass, Plexiglas).

The translucent element closes off the at least one illumination element, the optoelectronic unit for image acquisition and the optical deflecting element within the housing to the outside.

This results in an advantage that the at least one lighting element, the optoelectronic unit for image acquisition and the optical deflecting element are largely spared from external influences such as dust, moisture, other environmental influences, infection with germs, pathogens, viruses and thus a germ burden , This results in a further advantage that the at least one lighting element, the optoelectronic unit for image acquisition and the optical deflection element with respect to material and construction need not be configured so that they must withstand hygienic treatment by means of sterilization or disinfection. In contrast, the substantially closed surface of the at least one light-transmissive element can advantageously be relatively easily cleaned and hygienically treated.

Through the translucent element, the light bundles generated by the at least one lighting element emerge from the illumination system to the outside for illuminating the illumination area located below the illumination system. Through the translucent element pass the image information from the image capture area in the housing of the operating light on the optical deflection in the housing of the operating light.

In a particular embodiment of this further preferred embodiment, the light-transmitting element is formed as an arrangement of a plurality of light-transmitting segments arranged around the vertical center axis of the operating light.

In a further preferred embodiment, a handle on a mounting base formed for attachment of the handle is arranged on the underside of the operating light in or on the light-transmissive element, symmetrically to the vertical central axis. The mounting base allows separability of the handle of the operating light. This provides the advantage that the handle and the translucent element, for example, after use of the surgical light during surgery, independently of each other, a different hygienic treatment can be subjected. For example, the handle can be subjected to steam sterilization in an autoclave, while the translucent element, in particular in one embodiment as a closed and planar glass or plastic pane, can be subjected to a wiping disinfection with a cleaning liquid.

In a further preferred embodiment, the translucent element is arranged as a translucent circular ring arranged around the vertical central axis of the surgical lamp or a plurality of translucent circular ring segments. is formed, which is sealed with an outer sealing member against the housing of the surgical lamp and is sealed with an inner sealing member against the mounting base / are.

The present invention will be explained in more detail below with the aid of a schematic representation of an illumination system with the aid of the following figures and the associated description of the figures without limiting the general idea of the invention.

Show it:

1a a schematic view of a lighting system in a schematic view in a first use position,

1b a schematic view of a lighting system in a schematic view in another use position,

2 a schematic representation of the operation of an image capture in the lighting system with respect to the schematic view 1a ,

The 1a and 1b show a lighting system 1 ,

The 1a and 1b show the lighting system 1 in a first and in another position. The 1a and 1b are explained in detail in a common description of the figures. The representations after the 1a and 1b are not to scale, elements which in the 1a and 1b are identical or similar, are designated by the same reference numerals.

In the 1a is a lighting system 1 shown a variety of lighting elements 3 , which are preferably formed as LEDs has.

The lighting system 1 has a housing 10 on, so that out of housing 10 and the lighting elements 3 a surgical light 11 results. In the case 10 the operating light 11 is designed as a camera opto-electronic unit for image acquisition 5 arranged. Furthermore, an optical deflecting element 9 , which is formed as a mirror, as a prism or a spherical or aspherical optical element or as an at least one side mirrored, planar element in the optical beam path in the vicinity of the camera 5 arranged.

In this embodiment according to the 1a and 1b is the operating light 11 essentially with a semicircular housing 10 with a bottom 12 designed. This results in a substantially hemispherical outer contour of the surgical light 11 , On the bottom 12 the operating light 11 , or the lower edge 12 the operating light 11 is a translucent construction element 13 arranged. This translucent construction element 13 is designed as a disc, for example as a glass, mineral glass or a plastic disc (acrylic glass, Plexiglas), so that on the one hand, the light of the light elements 3 from the operating light 11 can penetrate to the outside, as well as on the other hand light or image information from the outside to the optical deflection element 9 can reach. The optical deflecting element 9 is trained to take image information from the lower edge 12 through the translucent construction element 13 in the surgical light 11 get in on the opto-electronic unit for image capture 5 (Camera) to redirect.

Center in the translucent construction element 13 is a mounting base 8th for a handle 7 arranged. This mounting base 8th serves to receive the handle 7 , About this handle 7 can the surgical light 11 to be moved in the room.

• – Eine Anhebung und/oder eine Absenkung der Operationsleuchte 11 parallel zu einer horizontalen Ebene 60, beispielsweise einem Fußboden in einem Operationsraum,
• – eine seitliche, parallele Verschiebung der Operationsleuchte 11 im Raum,
• – eine Verschwenkung/Verkippung der Operationsleuchte 11 im Raum, sodass sich eine Anordnung 120, 77' der Operationsleuchte 11 im Raum, wie in der 1b gezeigt, ergibt.

The following movements in the room are typically with a surgical light 11 of this kind, as in 1a and 1b shown possible:

• - An increase and / or a lowering of the operating light 11 parallel to a horizontal plane 60 such as a floor in an operating room,
• - A lateral, parallel displacement of the operating light 11 in the room,
• - A pivoting / tilting of the operating light 11 in the room, so that an arrangement 120 . 77 ' the operating light 11 in the room, as in the 1b shown results.

The for the holder of the operating light 11 on a ceiling or on a tripod required elements, as well as structural elements for rotation, raising, lowering or displacement of the operating light 11 , For example, base elements, pipe elements, brackets, joints, screws, bolts and the like, are in this for the sake of clarity 1a , as well as in the 1b not shown with.

In the 1a is the operating light 11 with the lower edge 12 the horizontal reference plane of the illumination system 120 aligned in parallel and to the horizontal plane 60 (Floor), as well as further in the 1a and 1b drawn horizontal reference planes 61 . 62 . 63 aligned, shown. In this 1a is the operating light 11 in a vertical position in the room with the vertical central axis 77 with identical axis position with the vertical axis of space 71 shown. The vertical space axis 71 forms with the horizontal plane 60 (Floor) a right angle.

The 1b shows the identical operating light 11 , - as in 1a in horizontal orientation 100 shown -, in a tilted, or inclined orientation 100 ' ,

The operating light 11 In addition to the optoelectronic unit for image acquisition (camera), the optical deflection element 9 and the lighting elements 3 inside the case 10 as additional components an image processing unit 52 , an image and output unit 55 , an optional antenna 56 and a power supply unit 53 to supply the lighting elements 3 , or the opto-electronic unit for image acquisition 5 , the image processing unit 52 and the image and output unit 55 ,

The Elements 52 . 53 . 55 . 56 are only in the 1a shown in the 1b are the elements 52 . 53 . 55 . 56 not shown for reasons of clarity.

Usually in a surgical light 11 additionally existing elements and for the operation of the lighting elements 3 , as well as the opto-electronic unit for image acquisition 5 , required components, such as buttons, switches or display elements are in the 1a and 1b not shown for reasons of clarity. In the 1a and 1b is below the operating light 11 an operating table 20 as a lying surface 21 shown.

The lying area 21 is essentially parallel to the horizontal plane 60 (Floor) with support elements 22 shown. The surface of the lying surface 21 forms with the second horizontal reference plane 62 which are parallel to the horizontal plane 60 (Floor) is aligned, a common level.

The lying area 21 has a top 210 , as a headboard of the bed 21 , and has a bottom 211 , as a foot part of the lying surface 21 , on. Are in the operating light 11 the lighting elements 3 activated in the function and generate a light, it results on the lying surface 21 a footprint S1, 23 in the 1a , or a footprint S1 ', 25 in the 1b , The footprint S1, 23 or S1 ', 25 be in these 1a and 1b dashed lines as lateral boundaries of the footprint area 88 , respectively. 88 " , as well as through a midpoint of the footprint area 80 , respectively. 80 ' on the bed 21 shown schematically. The footprint S1, 23 , or S1 ', 25 makes an area on the bed 21 whose observation or detection by an optoelectronic unit for image acquisition 5 (Camera) in the course of performing an operation, for example, for documentation purposes, is of interest. This results in the lying surface 21 in the 1a and 1b as a subset of the footprint S1, 23 , or S1 ', 25 an image capturing area S2, 24 , or an image capture area S2 ', 26 , In the illustration after 1a are a focus 90 the image acquisition area S2, 24 with the center 80 the footprint on the bed 21 unanimously. In the 1b results from the tilting / pivoting of the operating light 11 for a center of the image capture area 90 ' one from the center of the footprint 80 ' deviating position on the bed 21 ,

In the 1a and 1b is at the center of the image capture area 90 . 90 ' each a central axis of the image capture area 91 , respectively. 91 ' represented by the lying surface 21 to the lower edge 12 the operating light 11 in the surgical light 11 in almost centered on the optical deflecting element 9 is directed. Furthermore, boundaries of the image-capturing area S2, or S2 'are in dashed lines 93 . 95 respectively. 93 ' . 95 ' in the 1a and 1b shown. This results in an upper boundary of the image capture area S2, or S2 'with the dashed lines 93 , respectively. 93 ' and a lower boundary of the image capturing area S2, or S2 'with the dashed lines 95 , respectively. 95 ' on the bed 21 , For the of the lying surface 21 to the deflection 9 shown and aligned center axis of the image capture area 91 , respectively. 91 ' is on the deflector 9 one at right angles to the central axis 91 . 91 ' of the image capture area running average projection axis 99 shown. The middle projection axis 99 symbolizes the entry of image information from the deflection element 9 over a lens hood 51 into the optoelectronic unit for image acquisition 5 (Camera). The shutter hood 51 prevents influencing the image acquisition by possibly existing scattered or stray light, which of the lighting elements 3 inside the operating light 11 could be caused.

For an exact representation of the relationships of the image acquisition areas S2, 24 and S2 ', 26 with generation of the image S2 '' 28 ( 2 ), Imaging and image capture with the opto-electronic imaging unit 5 is at this point on the detail drawings with explanations in the 2 directed.

At this point be in the description of the 1a and 1b only to the extent that the image processing unit 52 one on the lens 58 ( 2 ) the camera 5 through the deflecting element 9 Conditional reflection of the image S2 '' 28 ( 2 ) and by means of the image and output unit 55 a page correct and in terms of alignment of footboard 211 and headboard 210 the lying area 21 correct image is provided. In summary, this results in that the surgical light 11 both in the horizontal orientation 100 , as well as in the tilted / tilted orientation 100 ' a detection of the image capture area S2, 24 or S2 ', 26 allows, which in a change in the position of the surgical light 11 in the room with the footprint S1, 23 or S1 ', 25 synchronously on the lying surface 21 moved when changes in the position of the operating light 11 in the room, such as tilting / tilting, lowering or raising the operating light in vertical axis alignment 71 or a lateral displacement of the operating light 11 above the lying surface 21 is made. The advantage here is that the change in position with change in the position of the footprint S 23 'S1' 26 , Especially with tilting / pivoting in the two axis alignments 77 . 120 the operating light 11 relative to the two spatial axes 71 . 60 . 51 . 62 . 63 only by one, centrally below the surgical light 11 at the bottom of the operating light 12 arranged, handle 7 which has significant advantages in terms of ergonomics in the course of an operation. These ergonomic advantages arise in particular in that the handle 7 like a kind of "pointer" (pointer / index finger) automatically with its lower edge with each movement of the operating light 11 also on the center 80 . 80 ' the footprint S1 23 , or S1 ' 25 has. Preferably, in the handle 7 one in the 1a and 1b not shown, point light source (laser pointer) can be arranged to an improved effect of the handle 7 as a "pointer" to achieve.

The arrangement of the optoelectronic unit for image acquisition 5 (Camera) in the operating light 11 thus restricts the handling of the operating light 11 in no way, as it would for example be the case when the camera 5 in the middle instead of the handle 7 on the underside of the surgical light 12 would be arranged. Due to the location of the camera 5 laterally in connection with the central axis 77 . 77 ' the operating light 11 the optical deflecting element 9 (Mirror) creates a possibility, the ergonomic advantages of the central handling guide with the handle 7 while maintaining the center of the footprint 80 , respectively. 80 ' almost identical to the center of the image capture area 90 , respectively. 90 ' on the bed 21 to enable. As a further advantage of the arrangement of optical deflection 9 (Mirror) and one horizontal to the lower edge 12 the operating light 11 arranged above the lower edge 12 the operating light arranged camera 5 in conjunction with the optical deflection element 9 results from the fact that the design (length, diameter) in the external design below the surgical light 11 with the handle 7 does not need to be considered. For example, allows a camera 5 with large design, which results, for example, by requirements on the optical properties (magnification range, zoom, Naheinstellbereich, light intensity), inside the housing 10 of the lighting system 1 in the operating light 11 to realize.

The 2 shows the lighting system 1 as already in the 1a and 1b illustrated, with a highlighting of the operation of the image capture with the camera 5 and the image deflection by means of the optical deflection element 9 ,

Same elements in the 2 and in the 1a . 1b are in the 2 with the same reference numerals as in the 1a . 1b designated. It will be in the 2 in a schematic representation of the operation of the means of the optical deflection element 9 shown image deflection shown. The illustration is based on the first application position with horizontal alignment 100 the operating light 11 , like in the 1a shown. The 2 thus shows the operating light 11 with the housing 10 with schematic elements of the optoelectronic unit for image acquisition 5 (Camera) in the horizontal orientation 100 the operating light 11 according to the 1a , The representation after the 2 is not to scale and in the representation of the components in the scale also not with the 1a identical or comparable.

The operating light 11 is in this presentation 100 after this 2 in spatial alignment parallel to the lower edge 12 to the horizontal plane 60 (Floor) with the first horizontal reference plane 61 in the third horizontal reference plane 63 , As essential optical and electronic components of the camera 5 are just a lens 58 , embodied as a lens having an effect as an optical element for guiding light, an optoelectronic semiconductor sensor, often also as a photochip 59 referred to schematically in the housing 10 of the lighting system 1 shown. Other elements for mechanical fixation or control of the camera 5 are not shown, as well as optical elements or to adjust the magnification. The lighting elements 3 are in this 2 merely hinted.

The image processing unit 52 is shown schematically the power supply unit 53 ( 1a . 1b ) and image and data output unit 55 ( 1a . 1b ) are for the sake of clarity, as well as the mounting base 8th ( 1a . 1b ) for the handle 7 like the handle 7 ( 1a . 1b ) itself, not shown. It is schematically the lying surface 21 like in the 1a and 1b but without the support elements 22 ( 1a . 1b ). The lying area 21 is in spatial alignment parallel to the horizontal plane 60 (Floor) with the first horizontal reference plane 61 in the second horizontal reference plane 62 ,

The lying area 21 has a top 210 as a headboard of the bed 21 and a bottom 211 as a foot part of the lying surface 21 on. headboard 210 and foot part 211 the lying area 21 correspond to the situation in the operating room, where on a part of the bed 21 a patient lying head and torso, for example, is prepared for surgery during surgery. Just like the lighting elements 3 in this 2 are shown only hinted are, for reasons of clarity and to simplify the graphic representation in this 2 the footprint S1 23 ( 1a ), as well as the associated lateral boundaries 88 and the center of the footprint 80 , not shown with. The optical deflecting element 9 is at an angle β 97 to the vertical center axis 77 the operating light 11 and at an angle α 96 to the horizontal reference plane 120 of the lighting system 1 , parallel to the bottom 12 the operating light 11 arranged. In an arrangement of the optical deflection element 9 in the vertical center axis 77 the operating light 11 would affect both the angle α 96 , as well as for the angle β 97 each give an angle of 45 °, since doing the image deflection of the image acquisition range S2 24 to the optoelectronic semiconductor sensor 59 (Fotochip) would be nearly perpendicular to each other.

In the arrangement of deflection 9 and camera 5 according to the present invention, shown in FIGS 1a . 1b , and 2 arise the angle α 96 , or β 97 deviating from each 45 ° in that the image entry into the lower edge 12 the operating light 11 off-center to the central axis 77 the operating light 11 and also the deflecting element 9 off-center to the central axis 77 the operating light 11 are arranged, the center of the image sensing area S2 24 but centered on the optoelectronic semiconductor sensor 59 (Photo chip) should be displayed. The off-center position of the deflecting element 9 in the operating light 11 conditionally a tilting of the optical deflection element 9 in the form that the angle α 96 to the horizontal reference plane 120 an angle range of typically 30 ° to 43 °, ie α <45 ° and the angle β 97 to the vertical center axis 77 an angular range of typically 47 ° to 60 °, ie β> 45 °. The respective angles α 96 and β 97 arise constructively depending on the distance between deflecting 9 and camera 5 , the distance of the deflecting element 9 from the central axis 77 the operating light 11 , as well as the use of the lighting system 1 as a normal situation, assumed distance between operating light 11 and lying area 21 , On the bed 21 are image acquisition points A 41 and B 43 , shown. Continue on the bed 21 the middle-point 90 of the image acquisition area on the lying surface 21 in a nearly central position between the image acquisition points A 41 and B 43 shown.

It is illustrated how the image capture point A 41 deflected by means of the optical deflecting element 9 through the lens 58 through as image projection points A ' 45 on the optoelectronic semiconductor sensor 59 arrives. Likewise, it is illustrated how the image capture point B 43 , deflected by means of the optical deflection element 9 through the lens 58 as image projection point B ' 47 also on the optoelectronic semiconductor sensor 59 arrives.

On the optoelectronic semiconductor sensor 59 this results in a projection of the image capture area S2 '' 28 , This projection of the image capture area S2 '' 28 is opposite to the image sensing area S2 24 mirrored. In the lower part of the 2 are two schematic faces, - executed as pirate faces with eye patch - shown, which the image capture area S2 24 , and the projection of the image sensing area S2 " 28 on the photo chip 59 to indicate schematically. The image acquisition point A 41 , as well as the image projection point A ' 45 be through an illustrated mouth area 37 illustrated. Of the Image capture point B 43 as well as the image projection point B ' 47 be through an eye, which with an eye patch 35 is covered, illustrated. This results in an exemplary view 31 for the image capture area S2 24 which is a storage of a patient on the bed 21 in the image acquisition area S2 24 comes close. This then results in the associated, with the optical deflection 9 mirrored view on the optoelectronic semiconductor sensor 59 as an exemplary view 33 for a projection 28 of the image sensing area S2 24 , The in this 2 shown as part of the operating light and in the lighting system 1 arranged image processing unit 52 is designed to be a signal 528 , which of the opto-electronic semiconductor sensor 59 is generated and provided, and which represents the projection of the image capture area S2 ", a signal 529 for a corrected image S2 " 29 the projection of the image capture area S2 24 and for further processing in the image and data output unit 55 ( 1a . 1b ).

The exemplary views 31 . 33 clearly show that the projection on a mirror axis 70 in the image acquisition area S2 24 is mirrored such that an upside down mirror image on the optoelectronic semiconductor sensor 59 results. The mirror axis 70 runs through the center 90 of the image sensing area S2 24 on the bed 21 , In the 2 are for orientation to the 1a and 1b also the horizontal plane 60 (Floor), as well as the horizontal reference planes 61 . 62 . 63 as well as the vertical space axis 71 and the vertical center axis 77 the operating light 11 located. The in this 2 not described in detail components, as reflected in the 1a and 1b to be able to find again are in this 2 arranged identically, as in the 1a with the representation of the horizontal alignment 100 the operating light 11 ,

LIST OF REFERENCE NUMBERS

1

lighting system

3

Lighting elements, LEDs

5

Opto-electronic unit for image capture, camera

7

handle

8th

mounting base

9

Optical deflecting element

10

Housing of the lighting system

11

surgical light

12

Lower edge, underside of the operating light 11

13

Light transmissive element

20

operating table

21

lying area

22

Support elements of the lying surface

23

Footprint S1

24

Image detection area S2, partial area of the illumination area S1 23

25

Footprint S1 '

26

Image detection area S2 ', partial area of the illumination area S1' 25

28

Projection of the image capture area S2 '',

29

Corrected image S2 '' 'of the projection of the image sensing area S2' '

31

Exemplary view for an image capture area S2 24

33

Example view for a projection 28 of the image acquisition area S2

41

Image capture point A

43

Image capture point B

45

Image projection point A ''

47

Image projection point B ''

51

Shade

52

Image processing unit

53

Power supply unit

55

Image and data output unit

56

antenna

58

optical element for guiding light, lens, objective, image entry opening

59

optoelectronic semiconductor sensor, photochip

60

horizontal plane, floor

61

first horizontal reference plane

62

second horizontal reference plane

63

third horizontal reference plane

70

Mirror axis of the exemplary view in the image capture area S2 24

71

vertical spatial axis, vertical reference plane

77, 77 '

vertical center axis of the operating light 11

80, 80 '

Center of the footprint on the bed 21

88, 88 '

lateral boundaries of the illumination area S1, or S1 '

90, 90 '

Center of the image capture area on the lying surface 21

91, 91 '

Central axis of the image capture area

93, 93 '

upper limit of the image acquisition area S2

95, 95 '

lower boundary of the image sensing area S2 '

96

Angle α against the horizontal reference plane of the illumination system

97

Angle β against the vertical center axis of the operating light 11

99

Middle projection axis of the image of the image capture area S2,

100

horizontal alignment of the operating light 11

100 '

tilted orientation of the operating light 11

993

upper projection limit of the image of the image capture area S2

995

lower projection limit of the image of the image capture area S2

120

Horizontal reference plane of the lighting system, parallel to the underside 12 the operating light 11

210

Top, headboard of the bed 21

211

Bottom, foot part of the bed 21

528

Signal of the opto-electronic semiconductor sensor 59

529

Signal of a corrected image S2 ''

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 0501088 B1 [0004]
• WO 1999/009878 A1 [0004]
• US 4915626 [0004]
• EP 2169965 B1 [0004, 0004]
• US 2011/0037840 [0004]

Claims (11)

Lighting system ( 1 ), in particular surgical light ( 11 ), with - at least one lighting element ( 3 ) to illuminate one outside the lighting system ( 1 ) in the direction of a vertical central axis ( 77 . 77 ' ) of the lighting system ( 1 ) aligned and located footprint ( 23 . 25 ) with one of the at least one lighting element ( 3 ) generated light bundles ( 80 . 80 ' . 88 . 88 " ), - an optical deflection element ( 9 ) for redirecting an image ( 28 . 45 . 47 ) one outside the lighting system ( 1 ) in the direction of the vertical central axis ( 77 . 77 ' ) of the lighting system ( 1 ) oriented image acquisition area ( 24 . 26 . 41 . 43 ), - an opto-electronic unit for image acquisition ( 5 ) with an optical element ( 58 ) for guiding light as an image entry opening, - an image processing unit ( 52 ), wherein - the optoelectronic image capture unit ( 5 ) and the optical deflecting element ( 9 ) in a common housing ( 10 ) in the lighting system ( 1 ), - the opto-electronic unit for image acquisition ( 5 ) with the image entry opening ( 58 ) in the lighting system ( 1 ) outside the vertical center axis ( 77 . 77 ), - the optical deflecting element ( 9 ) in the lighting system ( 1 ) is aligned, that the optical deflection element ( 9 ) a deflection of the image ( 28 . 45 . 47 ) of the image acquisition area ( 24 . 26 . 41 . 43 ) to the opto-electronic unit for image acquisition ( 5 ), - the opto-electronic unit for image acquisition ( 5 ) to a detection of the deflected image ( 28 . 45 . 47 ) of the image acquisition area ( 24 . 26 . 41 . 43 ) which is substantially horizontal in the lighting system (FIG. 1 ) to the opto-electronic unit for image acquisition ( 5 ), - the image processing unit ( 52 ), changes ( 45 . 47 ) (Manipulations, alienations) in a horizontal and vertical image perspective of the image ( 28 . 45 . 47 ) of the image acquisition area ( 24 . 26 . 41 . 43 ), which by the optical deflection element ( 9 ) are correct, and a corrected image ( 29 ), which in terms of the image perspective is a substantially identical image ( 29 ) of the image acquisition area ( 24 . 26 . 41 . 43 ) and an output signal ( 529 ) providing the corrected image ( 29 ). Lighting system ( 1 ) according to claim 1, wherein the orientation of the optoelectronic unit for image acquisition ( 5 ) in the lighting system ( 1 ) outside the vertical center axis ( 77 . 77 ' ) as a substantially parallel orientation of the image entry port ( 58 ) opto-electronic unit for image acquisition ( 5 ) to a horizontal reference plane ( 120 ) of the lighting system ( 1 ) is configured. Lighting system ( 1 ) according to claim 1, wherein at, in or in front of the optoelectronic image capture unit ( 5 ) in front of the optical element ( 58 ) a light shutter ( 51 ) is arranged such that no stray light, which of the at least one lighting element ( 3 ), to the optical element ( 58 ) can reach the light guide. Lighting system ( 1 ) according to claim 1, wherein the optical deflecting element ( 9 ) to a setting of a midpoint ( 90 . 90 ' ) of the image acquisition area ( 24 . 26 . 41 . 43 ) in relation to a midpoint ( 80 . 80 ' ) of the illumination area ( 23 . 25 ) is designed to be movable and adjustable. Illumination system according to claim 1, wherein the optical deflection element ( 9 ) substantially centered on the vertical central axis ( 77 . 77 ' ) of the operating light ( 11 ) in the housing ( 10 ) of the operating light ( 11 ) is arranged and the optical deflection element ( 9 ) at an angle ( 97 ) of 45 ° to the vertical central axis ( 77 . 77 ' ) of the operating light ( 11 ) is arranged and aligned, image information ( 90 . 90 ' . 41 . 43 ) from the image capture area ( 24 . 26 . 41 . 43 ) to a projection ( 28 . 45 . 47 ) to one in the optoelectronic image capture unit ( 5 ) arranged semiconductor sensor ( 59 ) to divert. Illumination system according to claim 1, wherein the optical deflection element ( 9 ) and the opto-electronic unit for image acquisition ( 5 ) on the same side outside the vertical central axis ( 77 . 77 ' ) of the operating light ( 11 ) in the housing ( 10 ) of the operating light ( 11 ) is arranged and the optical deflection element ( 9 ) at an angle β ( 97 ) <45 °, preferably in a range of 30 ° to 43 °, to the vertical center axis ( 77 . 77 ' ) of the Operating light ( 11 ) is arranged and aligned, image information ( 90 . 90 ' . 41 . 43 ) from the image capture area ( 24 . 26 . 41 . 43 ) to a projection ( 28 . 45 . 47 ) to one in the optoelectronic image capture unit ( 5 ) arranged semiconductor sensor ( 59 ) to divert. Illumination system according to claim 1, wherein the optical deflection element ( 9 ) and the opto-electronic unit for image acquisition ( 5 ) on different sides outside the vertical central axis ( 77 . 77 ' ) of the operating light ( 11 ) in the housing ( 10 ) of the operating light ( 11 ) is arranged and the optical deflection element ( 9 ) at an angle β ( 97 )> 45 °, preferably in a range of 47 ° to 60 °, to the vertical center axis ( 77 . 77 ' ) of the operating light ( 11 ) is arranged and aligned, image information ( 90 . 90 ' . 41 . 43 ) from the image capture area ( 24 . 26 . 41 . 43 ) to a projection ( 28 . 45 . 47 ) to one in the optoelectronic image capture unit ( 5 ) arranged semiconductor sensor ( 59 ) to divert. Lighting system ( 1 ) according to one of the preceding claims, wherein the surgical light ( 11 ) lower side ( 12 ) at least one translucent element ( 13 ), which is formed substantially as a closed surface and the housing ( 10 ) of the operating light ( 11 ) substantially completes and thereby leaving the translucent element ( 13 ) the at least one lighting element ( 3 ), the opto-electronic unit for image acquisition ( 5 ) and the optical deflecting element ( 9 ) terminates in the housing to the outside, wherein by the light-transmissive element ( 13 ) passing through the at least one lighting element ( 3 ) generated light bundles ( 80 . 80 ' . 88 . 88 " ) from the lighting system ( 1 ) for illuminating the illumination area ( 23 . 25 ) and where the image information ( 90 . 90 ' . 41 . 43 ) from the image capture area ( 24 . 26 . 41 . 43 ) in the housing ( 10 ) of the operating light ( 11 ) on the optical deflection element ( 9 ) in the housing ( 10 ) of the operating light ( 11 ) enter. Lighting system ( 1 ) according to claim 8, wherein the translucent element ( 13 ) as a substantially planar translucent disk, as an array of substantially planar translucent disk elements, or as an array of several about the vertical center axis ( 77 . 77 ' ) of the operating light ( 11 ) arranged transparent segments is formed. Lighting system ( 1 ) according to claim 8 or claim 9, wherein the lower side ( 12 ) on the operating light ( 11 ) in or on the translucent element ( 13 ), symmetrical to the vertical central axis ( 77 . 77 ' ), a handle ( 7 ) on one for a fastening of the handle ( 7 ) formed mounting base ( 8th ) is arranged. Lighting system ( 1 ) according to claim 9, wherein the translucent element ( 13 ) as one about the vertical center axis ( 77 . 77 ' ) of the operating light ( 11 ), or a plurality of translucent circular ring segments, which is provided with an outer sealing element against the housing ( 10 ) of the operating light ( 11 ) and with an inner sealing element against the mounting base ( 8th ) is / are sealed.

Images