JP2000106640A - Exchange lens, conversion adapter, main body of camera and camera system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system, which is easily handled, dispensing with back focusing and facilitates lens exchange as well, by performing the control of focusing and exposing through providing of exchange lens with a photographic lens, optical low-pass filter(LPF) and image pickup device on which back focusing is performed. SOLUTION: Exchange lenses 11, 12 and 13 keep the respective photographic lenses in the prescribed positions relative to the CCD of an imaging device and further are provided with casings 14, 18 and 22 also as mechanical means for positioning at loading of the exchange lenses. Besides, CCD 16, 20 and 24 and optical LPF are provided as imaging devices built in the casing 14. This system is provided with photographic lenses 15, 19 and 23 as optical systems and connector parts 17, 21 and 25 for performing mechanical coupling in addition to the exchange of image pickup signals, image-pickup control signals and electric signals related to the control of optical systems or exchange of power with a main body 1 of a camera. A CPU is provided as a control means separately. The casing of a convert adapter is equipped with a C mount.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interchangeable lens, a conversion adapter, a camera body, and a camera system.
An image pickup device, a control unit for controlling focus and exposure, and an interchangeable lens having a photographic optical system, and an external lens barrel mounted and a control unit for controlling the focus and exposure with the image pickup device. The present invention also relates to a conversion adapter, a camera body connectable to the interchangeable lens or the conversion adapter, and a camera system including the interchangeable lens and the camera body or an external lens barrel, a conversion adapter, and the camera body.

[0002]

2. Description of the Related Art A camera system including a CCD as an image pickup device, a driving circuit thereof, an optical filter, and the like, and an interchangeable lens having a photographing optical system detachable from the camera main body are known. It has been conventionally proposed.

FIG. 15 is a perspective view showing an example of the above-described conventional camera system before mounting a lens. An optical filter (optical LPF) 202, a CCD 203, a peripheral driving circuit, and the like are built in a camera body 201 shown in FIG. In addition, C mount is attached to the interchangeable lens mounting part,
A mount 201a such as a bayonet mount is provided. An input / output terminal row 20 is provided on the side of the camera body 201.
3 are provided.

The camera body 201 has the mount 20
A single focus lens 210 or a zoom lens 220, which is an interchangeable lens, can be mounted via 1a. The zoom lens 220 is used for focusing, zooming,
When the diaphragm is electrically operated, the zoom lens 220
Has a lens control cable 221 attached thereto, and is connected to one of the terminal rows 204 on the main body side via a connector.

[0005]

In the conventional camera having the above-described structure, the mount 201a is open as shown in FIG. There was a problem that dust and the like easily entered and maintenance was difficult.

In addition, with respect to the camera body 201 described above,
Although various types of interchangeable lenses can be attached, there is a problem that the lens cannot be easily exchanged because back focus adjustment is required every time these interchangeable lenses are attached.

In some cases, the above-mentioned mount portion is used as a screw mount, and the above-mentioned back focus adjustment is performed by rotating the screw when mounting the lens.

[0008] As described above, the conventional camera requires skill at the time of lens replacement, so that it is difficult for a general user to use the camera. Interchangeable video cameras have had limited applications for commercial or industrial use. Therefore, there is no video camera for general users that can exchange lenses, which is commercially available.

The interchangeable lens 22 shown in FIG.
In the case where the control cable 221 is provided like 0, it is necessary to further connect the cable after mounting the lens, and it takes time and effort to actually enter the shooting state. Further, in the shooting state, there is a problem that the cable 221 interferes with the shooting operation.

In the camera shown in FIG. 15, when the single focus lens 210 or the zoom lens 220 is mounted, the lens portion protrudes outward, and the portability of the camera is not good. Was.

Further, the camera shown in FIG. 15 only has the interchangeable lens (single focus lens 210 or zoom lens 220) as described above, and is provided with a control means for controlling the focusing and exposure. It is not assumed to be installed. That is, the control regarding focusing and exposure is performed only by the control means on the camera body side, and it is not possible to perform quick focusing and exposure control or these controls suitable for each interchangeable lens.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and is easy to handle and maintain in a camera to which an image pickup device is applied. It is an object of the present invention to provide an interchangeable lens, a conversion adapter, a camera body, and a camera system that can easily exchange an interchangeable lens having a predetermined control function in addition to the interchangeable lens.

[0013]

A first interchangeable lens according to the present invention comprises a photographing lens, an optical low-pass filter, an image sensor having a back focus adjusted, and control for controlling focusing and exposure. Means.

A first camera body according to the present invention is an exchange comprising a photographing lens, an optical low-pass filter, an image sensor having a back focus adjusted, and control means for controlling focusing and exposure. Recognizing that the lens is attached, processing and recording of image information generated based on an image pickup signal from the interchangeable lens are performed.

A first camera system according to the present invention is an interchangeable camera including an imaging lens, an optical low-pass filter, an image sensor having a back focus adjusted, and control means for controlling focusing and exposure. It is characterized by comprising a lens, and a camera body for recognizing that the interchangeable lens is attached and processing and recording image information generated based on an image signal from the interchangeable lens.

A first conversion adapter according to the present invention comprises a mount for mounting an interchangeable lens, an optical low-pass filter, an image pickup device for which back focus has been adjusted, and control means for controlling focusing and exposure. And a connector for outputting an image signal from the image sensor.

A second camera body according to the present invention comprises a mount for mounting an interchangeable lens, an optical low-pass filter,
An interchangeable lens is mounted via a conversion adapter that includes an image sensor that has been adjusted for back focus, control means for controlling focusing and exposure, and a connector for outputting an image signal from the image sensor. It recognizes that the conversion has been performed, and performs processing and recording of image information generated based on the imaging signal from the conversion adapter.

According to a second camera system of the present invention, there is provided an interchangeable lens having a photographing lens, a mount for mounting the interchangeable lens, an optical low-pass filter, an image sensor having a back focus adjusted, Control means for controlling the exposure, and a connector for outputting an image signal from the image sensor, a conversion adapter comprising, and recognizes that the conversion adapter equipped with the interchangeable lens is mounted, A camera body for processing and recording image information generated based on the imaging signal from the conversion adapter.

[0019]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a camera system according to a first embodiment of the present invention before an interchangeable lens is mounted.
FIG. 3 is a perspective view showing a state where an interchangeable lens is mounted on a camera body of the camera system.

As shown in FIG. 1, the camera system includes a camera, that is, a camera body 1 and interchangeable lens groups 11, 12, and 13 which can be attached to and detached from the camera body 1.

The interchangeable lenses 11, 12, and 13 are interchangeable lenses of a zoom lens, a wide-angle lens, and a pan-focus lens, respectively, and have a packaged cartridge structure containing an image pickup device and an optical system as described later. This interchangeable lens is inserted into the interchangeable lens insertion opening 1a of the camera main body 1 and mounted, and photographing is performed.

The interchangeable lenses 11, 12, and 13 maintain the respective photographing lenses in a predetermined positional relationship with respect to a CCD of an image pickup device, which will be described later, and further, a mechanical connection means for positioning when the interchangeable lens is mounted. But the housing 14,
18, 22 and C as an image pickup device built in the housing
CDs 16, 20, 24 and an optical LPF (low-pass filter) and photographing lenses 15, 19, 2 as an optical system
3 and transmission and reception of an image signal, an image control signal, an electric signal related to control of an optical system, and the like to and from the camera body 1;
The power supply device includes connector sections 17, 21, and 25 as connection means for transmitting and receiving power and performing mechanical coupling, and a CPU as control means.

The electrical signals transmitted to and received from the camera body 1 by the connectors 17, 21, and 25 of the interchangeable lenses 11, 12, and 13 include, for example, a focus determination signal, a focus actuator drive signal, and a photometry determination signal. , A focal length information signal, a zoom actuator drive signal, an iris actuator drive signal, and the like.

As described above, the interchangeable lens 1
CPUs as control means are provided in 1, 12, and 13, respectively.
With. With this CPU, control relating to photographing, for example, focusing control, exposure control, zoom control, etc. is completed in the interchangeable lens, and signals such as a focusing completion signal, an exposure control completion signal, and focal length information are transmitted to the camera body 1. By doing so, the operation shifts to the shooting operation.

The interchangeable lenses 11, 12, 13
In the above, optical systems such as the CCDs 16, 20, and 24 are housed in housings 14, 18, and 22 in a sealed state, and are protected from dust and the like. Furthermore, since the above-mentioned CCD is built in the housing, it is naturally incorporated in a state where the back focus is adjusted.

On the other hand, in the camera body 1, the interchangeable lenses 11, 12, and 13 are insertable, and the opening 1a is provided as connection means for mechanically coupling the interchangeable lenses. Have been. In the opening 1a, an image pickup signal, an image pickup control signal, an electric signal related to control of an optical system and the like, transmission and reception of electric power, and mechanical coupling of the interchangeable lens are performed. 2 is provided as connection means for the connection.

Further, the camera body 1 has a control means for recognizing each lens type and performing a photographing operation so as to be compatible with various types of interchangeable lenses such as the zoom lens, the wide-angle lens, and the pan-focus lens mounted. And a circuit for processing an image signal from the interchangeable lens, and a circuit for recording and reproducing data. In addition, a strobe light emission window 3, camera operation switch groups 4, 5, a photographing information display unit 6, an input / output terminal row 7, and the like are provided on an exterior portion of the camera body.

When the interchangeable lens 11, 12, or 13 is attached to the camera body 1,
As shown in FIG. 2, the housing of the interchangeable lens is housed in the camera body, and the lens surface of the interchangeable lens does not protrude from the front surface of the camera body 1.

In order for the camera system of the present embodiment configured as described above to be ready for photographing, first, the interchangeable lenses 11, 12, and 12 are inserted into the opening 1 a of the camera body 1.
13 and insert connector 1 into connector 2
7, 21, or 25 is connected to be in the mounted state.

By operating the operation switches 4 and 5 of the camera body in this state, the imaging data of the subject image captured by the interchangeable lens is recorded on the camera body 1 side or output as an imaging signal to the outside. You.

According to the camera system of the present embodiment, the connector as the connection means is fitted simply by mounting each interchangeable lens, and not only mechanical connection but also electrical connection can be performed with one touch.

Further, since the back focus of the interchangeable lens that can be mounted as described above has already been adjusted, it is not necessary to adjust the back focus associated with mounting the interchangeable lens as in the conventional camera system. Therefore, lens exchange becomes extremely easy, and it is possible to set a photographable state only by attaching an interchangeable lens.

Further, since the interchangeable lens is packaged in a sealed state as described above, the inside of the lens and the CCD
And the like can be prevented from adhering dust.

When the interchangeable lens is mounted on the camera body, it does not protrude and there is no connection cable between the interchangeable lens and the camera body, so that portability in a photographable state is improved.

Also, by preparing various interchangeable lenses that can be mounted on the camera body, it is possible to select a lens according to the photographer's purpose, and for example, it is possible to enlarge the photographing area.

By using a common connector as the connection means, for example, it is possible to provide a configuration which can support an image sensor having various sizes or an image sensor having a number of pixels.

As an application example of the camera body 1 applied to the camera system of the first embodiment, an image sensor, an optical LP
F. By using a conversion adapter with a built-in CPU as a control means, it is possible to propose a camera system in which a conventional interchangeable lens having no image sensor can be mounted. FIG. 3 is a perspective view of the camera body 1, the conversion adapter, and a conventional interchangeable lens before being mounted.

The camera body 1 shown in FIG. 3 is the same as the camera body applied to the first embodiment described above.
An opening 1a into which the interchangeable lens applied to the first embodiment can be inserted, and a connector 2 as a connecting means provided in the opening are similarly arranged on the camera body 1. Other configurations are the same.

The conversion adapter 31 has a housing 32
A conventional C mount 32a on which a conventional interchangeable lens having no CCD is mountable is provided similarly to the interchangeable lens 210 shown in FIG. The mount may be a conventional bayonet mount.

Further, an optical LPF 33 is provided in the housing 32.
, A CCD 34 as an image sensor, a connector 35 as a connection means to the camera body 1, and a CPU as a control means are packaged and arranged at predetermined relational positions.

By attaching the conversion adapter 31 as described above to the camera body 1, the conventional interchangeable lens
8, 39 can be used for shooting. FIG.
FIG. 1 is a perspective view of a camera system showing a mounted state of the conventional interchangeable lens.

Next, a camera system according to a second embodiment of the present invention will be described with reference to a perspective view of FIG. 5 showing a state before mounting the camera body and the interchangeable lens.

The interchangeable lens 44 constituting the camera system of the present embodiment has a part of a housing 45, for example, whether the interchangeable lens is a zoom lens, a wide-angle lens, or a pan-focus lens. Marking irregularities as specification information holding means, which is a mark indicating information relating to the specification of the interchangeable lens, such as information on the type of a certain lens, brightness information of the lens, or information indicating the type of a built-in imaging device. 45a, 45b, 45c, and 45d are provided. Needless to say, this interchangeable lens 44 has a photographic lens 4 like the interchangeable lens 11 in the first embodiment.
6. It is assumed that the imaging device 47 is built in, and a connector 48 as connection means and a CPU as control means are provided.

On the side of the camera body 41 on which the interchangeable lens 44 is mounted, the uneven portions 45a, 45b, 4
An optical sensor 43 as information receiving means for reading the held information of 5c and 45d is arranged at a corresponding position inside the opening 41a. Further, a CPU having information identifying means for identifying the specification of the attached interchangeable lens from the output of the optical sensor 43 is also incorporated.

The camera body 41 has the first
Similar to the camera body 1 applied to the embodiment, it is assumed that similar components such as a connector 42 and an image processing circuit as connection means for the interchangeable lens are incorporated.

In the camera system of the present embodiment configured as described above, the interchangeable lens 44 is
By being attached to 1, the type of the attached interchangeable lens is automatically identified. Therefore, the photographer can prevent mistakes in setting photographing conditions, erroneous operations, and photographing mistakes. Of course, it has the same effect as that of the system of the first embodiment.

In the interchangeable lens 44 applied to the above-described second embodiment, a bar code is employed as an alternative to the marker concave and convex portions 45a, 45b, 45c, 45d provided as interchangeable lens specification information holding means. Such an interchangeable lens can be proposed as a modification.

FIG. 6 is a perspective view of the interchangeable lens of the above-mentioned modified example. A photographing lens 53 and a CCD 54 are similarly built in a housing 52 of the interchangeable lens 51, and a connector 55 as a connecting means for connecting to the camera body. And a CPU as control means are provided. On the side surface of the housing 52, a bar code pattern 56 provided as means for retaining specification information of the interchangeable lens is provided.

An optical sensor for detecting a bar code as information receiving means is provided on the camera body side on which the interchangeable lens 51 is mounted, at a position facing the bar code pattern 56 in the mounted state. . The other configuration of the camera body is the same as the configuration of the camera body 41 of the second embodiment. With this configuration, the barcode information can be read simultaneously with the operation of mounting the interchangeable lens.

When the interchangeable lens 51 of the present modification and the camera body corresponding to the interchangeable lens 51 are used, the detailed specifications of the interchangeable lens can be determined by the camera body. It becomes possible.

As another modified example of the specification information holding means of the interchangeable lens 44 and the information receiving means of the camera body applied to the above-described second embodiment, a connecting portion of a pin type connector used as a connecting means is provided. Of which, several connecting pieces,
It is also possible to propose a modification in which the connection pin is used for the specification information holding unit and the information receiving unit.

FIG. 7 is a schematic block diagram of a circuit associated with the interchangeable lens and the connector of the camera body according to the above modification. In this modification, as shown in FIG. 7, the three connection pins 6 in the male connector 61 on the camera body side are used.
1b and three connection pieces 65b of the corresponding female connector 65 on the interchangeable lens side are used as interchangeable lens information receiving means and specification information holding means. The connection pin 61
A power line is connected to b through a resistor. Connection piece 6
5b are set in the interchangeable lens to an on state or an off state based on the specifications of the interchangeable lens.

The on / off output of the connection pin 61b is input to a CPU 62 as control means on the camera body side.
The type of the attached interchangeable lens is determined. CPU62
Controls the automatic focus adjustment circuit 63 or the exposure control circuit 64 according to the specification of the identified interchangeable lens, and executes photographing.

In this modification, three connection pins are used for holding specification information or for receiving information, and therefore, it is possible to identify 2 to the third power, that is, eight kinds of specifications of the interchangeable lens. It becomes possible. Since the specification information holding means or the information receiving means is incorporated in accordance with the connector of the connection means, there is no need to separately provide such means, which is advantageous in terms of space and cost. It will be.

Next, a camera system according to a third embodiment of the present invention will be described with reference to a perspective view of FIG. 8 before the camera body and the interchangeable lens are mounted.

In the camera system of the present embodiment, the outer shape of the housing 76 of the interchangeable lens 75 is different from the shape of the quadrangular prism of the housing of the interchangeable lens of the first embodiment or the like in that the lower side surface along the insertion direction is smaller. It is a cut hexagonal prism, the opening 71a of the camera body 71 also has a shape matching the hexagonal prism of the housing 76 of the interchangeable lens, and both can be connected only in a normal posture, For example, the inconvenience of reversing an image on a monitor by disposing the image sensor upside down is eliminated.

As for the other configuration, the interchangeable lens housing 76 has a photographic lens 7 as in the first embodiment.
7, a CCD 78, a connector 79 as a connection means with the camera body, and a CPU as a control means are arranged. The camera body 71 has a connector 72 as a connection means corresponding to the connector 79, and a strobe light. 73
And so on.

In the camera system of the present embodiment configured as described above, the interchangeable lens 75 is
It is possible to insert and connect the connector only in a normal posture relative to 1. Therefore, erroneous insertion of the interchangeable lens 75 does not occur, and accidental damage to the connector due to erroneous insertion can be prevented, so that the interchangeable lens can be mounted smoothly.

If the shape as shown in FIG. 8 is not possible due to the component structure of the lens frame, a similar effect can be obtained in the following modification.

That is, FIG. 9 is a perspective view of a modified example of the interchangeable lens insertion portion for the camera system of the third embodiment before the interchangeable lens is mounted, and FIG. 10 is a view of the opening of FIG. In the camera system of this modified example, a guide groove 86b as a guided means is provided in a housing 86 of an interchangeable lens 85 along the insertion direction, and is provided in an opening 81a on the camera body 81 side. Is provided with a guide rail 81b as guide means that can be slidably fitted into the guide groove 86b.

The positional relationship between the guide groove and the guide rail is such that the guide rail 81b is provided asymmetrically with respect to the center C of the opening 81a as shown in FIG.
It can be inserted only in a certain direction. The relationship between the guide groove and the guide rail may be such that a guide groove is provided on the camera body side and a guide rail is provided on the interchangeable lens side.

As another configuration, as in the first embodiment, the interchangeable lens housing 86 has the taking lens 8
7, a CCD 88 is built in, and a connector 89 as connection means for connecting to the camera body 81 and a CPU as control means are provided. Further, a connector 82 as a connecting means corresponding to the connector 89 is provided on the camera body 81,
A strobe 83 and the like are provided.

In the camera system of the present modification configured as described above, the same effects as those of the third embodiment can be obtained. That is, the interchangeable lens 85 can be inserted only in a regular posture relative to the camera body 81, and the connector can be similarly connected. Therefore, of course, the erroneous insertion of the interchangeable lens 85 does not occur, and it is possible to prevent the connector from being damaged due to the erroneous insertion.

Next, a camera system according to a fourth embodiment of the present invention will be described with reference to an interchangeable lens shown in FIG. 11 and a perspective view before a memory card is mounted.

In the camera system of this embodiment, the camera is mounted on the rear surface of the camera body 91 opposite to the interchangeable lens insertion opening 91a in a direction parallel to the direction in which the interchangeable lens 95 is inserted into the camera body and in a direction opposite to the direction. A card insertion slot 91c as an information recording medium mounting means into which the memory card 100 as a card-shaped information recording medium is inserted. A memory card connector 1 as information recording medium mounting means is provided inside the card insertion slot 91c.
01 is provided.

Further, on the side of the camera body 91, FIG.
1, an interchangeable lens slidable in a direction D parallel to the insertion direction as shown in FIG.
An eject operation knob 102, which is an operation member for a memory card of the information recording medium, is provided.

As another configuration of the camera system of the present embodiment, as in the first embodiment, the housing 96 of the interchangeable lens 95 has a photographic lens 97, a CCD 98,
Further, a connector 99 as a connecting means with the camera main body 91 and a CPU as a control means are provided. The camera main body 91 has a connector 92 as a connecting means corresponding to the connector 99, a strobe 93 and the like. It is arranged.

As described above, in the camera body 91, the memory card 100 is positioned in the direction opposite to the direction in which the interchangeable lens is inserted.
Is inserted, the layout efficiency in the camera body 91 is improved. Further, a structure in which the operation direction of the eject operation knob 102 is set in the D direction parallel to the insertion direction can be easily adopted.

Further, the eject operation knob 102 which is a single member is moved forward from the neutral position along the direction D,
Alternatively, by operating backward, the interchangeable lens 9
5, or the connector of the memory card 100 is released, and the interchangeable lens 95 or the memory card 10 is released.
0 can be easily discharged, the operation member can be simplified, and the cost can be reduced.

Next, a camera system according to a fifth embodiment of the present invention will be described with reference to a perspective view of FIG. 13 before an interchangeable lens is mounted and a perspective view of a mounted state of FIG.

In the camera system of this embodiment,
A light transmitting window 91 is provided on the upper surface of the interchangeable lens
d is provided, and on the upper surface side of the interchangeable lens 95, there is provided a notation section 103 for notifying its own lens specifications, for example, information indicating information such as focal length, brightness, aperture, and auto / manual focus.

The specification etc. notation section 103 is provided with the interchangeable lens 9.
5 In the mounted state, the camera is located at the light transmission window 91d of the camera body, and when checking the specifications of the mounted interchangeable lens, the photographer does not need to look through the interchangeable lens side as in the related art. Without changing the camera body 91,
It can be visually checked in the same posture as the shooting state, which is convenient for shooting.

The other configuration of the camera system according to the present embodiment is the same as that of the fourth embodiment.

[0075]

As described above, according to the present invention, a camera to which an image sensor is applied is easy to handle and maintain, does not require adjustment of the back focus, and can be used not only for ordinary interchangeable lenses, but also for conventional cameras. It is possible to provide an interchangeable lens, a conversion adapter, a camera body, and a camera system that can easily exchange an interchangeable lens having a predetermined control function.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a camera system according to a first embodiment of the present invention before an interchangeable lens is attached.

FIG. 2 is a perspective view of the camera system of FIG. 1 in a state where an interchangeable lens is mounted.

FIG. 3 is a perspective view of a camera body of the camera system shown in FIG. 1 before mounting a conventional interchangeable lens via a conversion adapter.

FIG. 4 is a perspective view showing a state where a conventional interchangeable lens is mounted on the camera body of FIG. 3;

FIG. 5 is a perspective view showing a camera system according to a second embodiment of the present invention before an interchangeable lens is attached.

FIG. 6 is a perspective view of an interchangeable lens to which a barcode pattern is applied as a modification of the interchangeable lens specification information holding means in the interchangeable lens of the camera system of FIG. 5;

FIG. 7 is a block diagram of a connector unit and a circuit associated therewith when a connector pin and a connection piece are applied as another modification of the interchangeable lens specification information holding means in the interchangeable lens of the camera system of FIG. 5;

FIG. 8 is a perspective view showing a camera system according to a third embodiment of the present invention before an interchangeable lens is attached.

FIG. 9 is a perspective view showing a modified example of the interchangeable lens insertion portion of the camera system of FIG. 8 before the interchangeable lens is mounted.

FIG. 10 is a view taken in the direction of arrow A in FIG. 9;

FIG. 11 is a perspective view showing a camera system according to a fourth embodiment of the present invention before an interchangeable lens and a memory card are mounted.

FIG. 12 is a view as viewed from the direction indicated by the arrow A in FIG. 11;

FIG. 13 is a perspective view showing a camera system according to a fifth embodiment of the present invention before an interchangeable lens is attached.

FIG. 14 is a perspective view of the camera system of FIG. 12 with an interchangeable lens attached.

FIG. 15 is a perspective view showing a conventional camera system before an interchangeable lens is attached.

[Explanation of symbols]

1, 41, 71, 81, 91 ... Camera or camera body 1a, 41a, 71a, 81a, 91a ... Opening 2, 42, 61, 72, 82, 92 ... Connectors 11, 12 , 13,44,51,75,85,95 ...
... Interchangeable lenses 14, 18, 22, 32, 45, 52, 76, 86, 9
6 ... Cases 15, 19, 23, 46, 53, 77, 87, 97 ...
... Shooting lenses 16, 20, 24, 34, 47, 54, 78, 88, 9
8 CCD 17, 21, 25, 35, 48, 55, 65, 79, 8
9, 99 Connector 31 Conversion adapter 34 Optical LPFs 45a, 45b, 45c, 45d Marking irregularities 56 Bar code pattern 61b Connection pins 65b Connecting piece 81b Guide rail 86b Guide groove 91c Card insertion port 91d Light transmissive window 100 Memory card 101 Memory card connector 102 Eject operation knob 103 ... Specifications notation section

Claims (6)

[Claims] 1. An interchangeable lens comprising: a photographing lens; an optical low-pass filter; an image sensor whose back focus has been adjusted; and control means for controlling focusing and exposure. 2. Recognizing that an interchangeable lens including a photographing lens, an optical low-pass filter, an image sensor having a back focus adjusted, and control means for controlling focusing and exposure is mounted. A camera body for processing and recording image information generated based on an imaging signal from the interchangeable lens. 3. An interchangeable lens comprising: a photographing lens; an optical low-pass filter; an image sensor whose back focus has been adjusted; and control means for controlling focusing and exposure; And a camera body for recognizing that the processing has been performed and processing and recording image information generated based on an image pickup signal from the interchangeable lens. 4. A mount for mounting an interchangeable lens, an optical low-pass filter, an image sensor having been adjusted for back focus, control means for controlling focusing and exposure, and imaging from the image sensor. A conversion adapter, comprising: a connector for outputting a signal. 5. A mount for mounting an interchangeable lens, an optical low-pass filter, an image sensor having a back focus adjusted, control means for controlling focusing and exposure, and imaging from the image sensor. A connector for outputting a signal, and recognize that the interchangeable lens is attached via a conversion adapter including the conversion adapter, and perform processing and recording of image information generated based on an imaging signal from the conversion adapter. The main camera body. 6. An interchangeable lens having a photographing lens, a mount for mounting the interchangeable lens, an optical low-pass filter, an image sensor having a back focus adjusted, and control for performing focusing and exposure control. Means, a conversion adapter comprising: a connector for outputting an imaging signal from the imaging element; and recognizing that the conversion adapter equipped with the interchangeable lens is attached, and converting the imaging signal from the conversion adapter to A camera body for processing and recording image information generated based on the camera system.