WO2006102908A1

WO2006102908A1 - Device for receiving, orienting and adjusting an optical component

Info

Publication number: WO2006102908A1
Application number: PCT/EP2005/001832
Authority: WO
Inventors: Andre Timmermann; Detlef STÖHR
Original assignee: Hentze-Lissotschenko Patentverwaltungs Gmbh & Co. Kg
Priority date: 2005-02-22
Filing date: 2005-02-22
Publication date: 2006-10-05

Abstract

The invention relates to a device for receiving, orienting and adjusting an optical component (11), said device comprising a receiving means (2; 21) for fixing the device, and a bearing means (3, 4; between 22 and 20/21/23 ) for pivotably fixing the optical component (11) in relation to the receiving means. The inventive device is also provided with a fixing means (6; 23) which is used to create a non-positive connection between the receiving means and the bearing means.

Description

DEVICE FOR RECORDING, ALIGNMENT AND ADJUSTMENT OF ONE

OPTICAL COMPONENT

-1 -

The present invention relates to a device for receiving, aligning and adjusting an optical component according to the preamble of claim 1.

A device of the aforementioned type has already become known from DE 102 01 200 A1. Here, a lens pivoting device is described for pivoting an objective disposed concentrically therein about two pivot axes perpendicular to each other in the optical axis of the objective in an axis intersection, the objective being mounted in a lens holder and pivotally mounted in bearings in two degrees of freedom of a spherical surface ,

Also, a lens frame receiving mechanism has become known from US 5,502,598, in which the lens receptacle has an at least partially spherical bearing surface, which is accommodated in a corresponding bearing receptacle.

However, such devices have disadvantages. In particular, in devices whose optical component is only around an origin point, d. H. must be pivoted to the intersection of the three spatial axes X ₁ Y and Z (pivot point), high demands are made. A particular challenge in this context is the fixation of the optical component after adjustment. In particular, in a very accurate adjustment of the optical component, for example, after calibration with a goniometer, the position of the optical device may not be changed by the fixation. For this purpose, no suitable solutions have been proposed. Accordingly, it is an object of the invention to provide a device for receiving, aligning and adjusting an optical component which enables adequate fixation of the optical component.

According to the invention this object is achieved by a device having the characterizing features of claim 1. By providing a fixing means which is suitable for producing a non-positive connection between the receiving means and the bearing means, a generic device can be provided with an appropriate fixation, which can be achieved in particular by a slight slip during the fixation of the optical component Adjustment and a simple construction features.

In an advantageous embodiment of the present invention can be provided that the receiving means is designed as a receiving cylinder, wherein the receiving cylinder has a hollow cylindrical shape for receiving a bearing means. Accordingly, the optical component can be securely mounted within a hollow cylinder.

In a further advantageous embodiment of the present invention can be provided that the bearing means comprises a hollow cylindrical bearing shell, and a ball head, wherein the ball head is pivotally received within the bearing shell, wherein the ball head is adapted to receive the optical component. Such a design of the bearing means lends itself in particular to a robust and robust embodiment, since the ball head can be guided and picked up extremely precisely in the surrounding bearing shell. In a further advantageous embodiment of the present invention can be provided that the fixing means comprises a ring which is suitable at least for frictional connection with the ball head. In particular, a ring that can rest on the circumference of the ball head, allows a uniform frictional connection, so that a very low slip is expected. Accordingly, there is a high degree of match of metered and fixed position.

In a further advantageous embodiment of the present invention can be provided that a union nut is provided which is screwed onto a thread of the receiving cylinder and can come into contact with the ring. By turning the nut, a transverse movement can be generated, which can be transmitted to the ring and produce a well-dosed pressure force. Also, by appropriate selection of the thread an advantageous translation between rotation of the nut and transverse movement, to the self-locking of the nut can be adjusted.

In a further advantageous embodiment of the present invention can be provided that a holder between the ball head and the optical component is provided. Such a holder may for example be adapted to different optical components. Also, the holder can be configured, for example, as a rotary holder for the optical component, so that here adaptation measures for optical components can be made, which require a certain imaginary plane.

In this context, it can furthermore advantageously be provided that the holder is connected to a lever. With a lever, the angle of the optical element can be adjusted exactly. It should be noted that the angular accuracy of the adjustment can be increased with the length of the lever arm.

It can also be advantageously provided that the lever is detachably connected to the holder. Accordingly, the lever can be removed after adjustment, which ultimately space can be saved.

In an alternative and highly advantageous embodiment of the present invention can be provided that the receiving means is designed as a receiving frame, wherein a component frame is provided for receiving the optical component, wherein provided as bearing means at least one pair of sliding bearings, preferably two plain bearing pairings between the receiving frame and the component frame are. The presently proposed embodiment of the present invention provides an extremely space-saving device which is produced much more easily and inexpensively by the frame construction.

In an advantageous embodiment of the present invention can be provided that a first pair of bearings and a second pair of bearings is provided, the pair of slide bearings are provided on the opposite sides of the receiving frame or the component frame. Such an arrangement of the bearing means opens up maximum stability and

Positioning accuracy with minimal use of materials and weight of the device. AIs advantageous embodiment of the fixing means may be provided here that the fixing means is designed as a jaw, wherein at least one pair of bearings is equipped with a jaw, wherein the jaw can be deflected to block the slide bearing. By virtue of this measure, in particular the design of a bearing section with a clamping jaw, it is possible to provide a frictional connection acting directly on the sliding bearing. The change of the bearing preload and thus the accuracy of the device is realized by the clamping. In the event that the jaw is completely closed, the bearing means is fixed by the radially occurring pressure.

It can advantageously be provided that the first sliding bearing pairing is formed from a spherical segment-shaped surface of the component frame and a spherical segment-shaped inner surface of the basic body. Basically, the sectoral pairing of the spherical segment-shaped surfaces or inner surfaces can result in a pivotability of the component frame about an origin point, whereby a considerable installation space can be saved compared to a continuous surface, such as in the case of a cylindrical bearing means.

In this context, it can also advantageously be provided that the second sliding bearing pairing is formed from a spherical segment-shaped surface of the component frame and a spherical segment-shaped inner surface of the clamping jaw. Also by this arrangement results in a pivoting of the component frame to an origin point, with a considerable space compared to a continuous surface, such as in a cylindrical bearing means, can be saved. In contrast, it can furthermore advantageously be provided that an air gap is arranged between a surface of the receiving frame and an inner surface of the component frame. This air gap is not a plain bearing.

It can also advantageously be provided that an air gap is arranged between the surface of the receiving frame and the inner surface of the component frame. This air gap is not a plain bearing.

It may also be advantageously provided that the receiving frame and / or the component frame is equipped with relief holes and / or relief milling. In this way, the unwanted transmission of clamping voltages between the frame elements can be excluded. Also, any occurring stresses are neutralized.

In a further advantageous embodiment of the present invention can be provided that the jaw is connected via two projections with two threaded seats with the receiving frame, in each case screws are provided, through which the distance between the projections and the threaded seats can be adjusted. The screwing used, the voltage of the jaw and thus the effect of the locking means can be set and handled very accurately.

It may also be advantageously provided that the component frame and / or the connection frame is equipped with adjusting screws, which allow a very accurate adjustment of the position of the frame to each other. It may also be advantageously provided that the receiving means is connected to a base body, wherein the base body is adapted for mounting the device on a mounting, work and / or measuring station and / or laboratory setups. Accordingly, there is an advantageous connection possibility for secure attachment of the device, for example, with the enumerated experimental design.

It can also be advantageously provided that the base body is designed as a connecting element. Accordingly, there are advantageous connection possibilities, for example with a support or another adjustment table.

Further features and advantages of the present invention will become apparent from the following description of preferred embodiments with reference to the accompanying drawings. Show in it

Figure 1 is a plan view of an inventive device for receiving, alignment and adjustment of an optical component.

FIG. 2 shows a perspective view of a device according to the invention for receiving, aligning and adjusting an optical component; FIG.

3 shows a plan view of a device according to the invention for receiving, aligning and adjusting an optical component with a lever;

4 shows a partially sectioned view of a device according to the invention for receiving, aligning and adjusting an optical component with a lever;

5 shows a perspective view of a device according to the invention for receiving, aligning and adjusting an optical component with a lever;

6 shows an alternative embodiment of a device according to the invention for receiving, aligning and adjusting an optical component in a perspective view; 7 is a perspective detail view of a base body and a jaw;

8 shows a receiving frame of an alternative embodiment of a device for receiving, aligning and adjusting an optical component in a perspective view;

9 is a perspective view of an alternative

Embodiment of a device according to the invention for receiving, alignment and adjustment of an optical component.

First, reference is made to FIG. 1.

A device for receiving, aligning and adjusting an optical component 1 1 essentially comprises a main body 1 with a receiving cylinder 2, wherein the receiving cylinder 2 has a hollow cylindrical shape for receiving a bearing means within the receiving cylinder 2. The bearing means in turn is suitable for the pivotable mounting of an optical component 11, preferably around an origin point (pivot point). The optical component 1 1 can in principle be pivoted within the receiving cylinder 2 about each Cartesian spatial axis and is accommodated in a holder 5.

As a bearing means a component-side ball head 4 and a receiving side bearing shell 3 is provided. The bearing shell 3 is a hollow cylindrical element with a spherical segment-shaped inner surface corresponding to the surface of the ball head 4. As an inventive fixing means for non-positive connection between the receiving means and the bearing means, a ring 6 is provided which can at least partially rest on the ball head 4 and the receiving cylinder 2. In addition, the ring 6 is slidably along its outer circumference on the inside of the receiving cylinder 2. Furthermore, the ring 6 lies completely along the inner circumferential edge on the ball head 4. In the event that a suitable force is exerted on the ring 6, a uniform frictional connection between the ring 6 and the ball head 4 can be ensured. In order to exert the necessary force on the ring 6, a union nut 7 is provided, which can be screwed onto a thread 8 of the receiving cylinder 2. The union nut 7, on the one hand, has an opening 9, through which the holder 5 for the optical component 1 1 can protrude. On the other hand, the union nut 7 abuts against the ring 6, so that the ball head 4 can be clamped in a predeterminable position relative to the receiving cylinder 2.

Due to the uniform support of the ring 6 on the ball head 4 results in a minimal to negligible slip of the optical component 1 1, so that a high degree of agreement of measured and fixed position can be ensured. Also, the acting force can be transmitted very evenly to the ring 6 by rotation of the nut 7 and precisely metered.

For mounting such a device for receiving, aligning and adjusting an optical component 11, the base body 1 is provided with elongated holes 10, which can be used for example for attachment to a laser array. A further embodiment of the present invention can be taken from FIGS. 3 to 6. On the holder 5, a lever 100 can be placed, which in turn can be clamped on the other side on an X, Y, Z shift table. Now, with the translation table, the angle of the optical element 1 1 can be set exactly. It should be noted that the angular accuracy is set with the length of the lever arm.

Furthermore, it is possible in this exactly set position to rotate the optical element 1 1 about its own axis. This is especially important for optical components that have a certain imaginary plane.

If the optical system is set at all angles, it is possible to exert a force on the ring 6 with the union nut 7. This transfers the force to the ball head 4. This now clamps so strong against the bearing shell 3, that the system is fixed. Now the lever 100 can be removed.

A further advantageous embodiment of the present inventive device for receiving, alignment and adjustment is shown in Figs. 6 to 9, to which reference is made below.

The device according to the invention shown here essentially comprises a base body 20 on which a preferably vertically arranged receiving means in the form of a receiving frame 21 is attached. Furthermore, the device for receiving, aligning and adjusting an optical component comprises a component frame 22 for mounting one or more optical components (optical component not shown here). Between the frame 21 and the Component frame 22 is a bearing means in the form of a first pair of bearings and a second pair of bearings provided, which in principle allow the component frame 22 relative to the receiving frame 21 to pivot, preferably by a common point of origin (pivot point). The slide bearing pairings consist of both parts of the receiving frame 21 and the component frame 22nd

The component frame 22 is essentially a rectangular frame centrally equipped with an opening to the receiving cylinder of the optical component. For this purpose, the component frame 22 may be equipped with fastening threads 35. The receiving frame 21 is also a rectangular frame provided centrally with an opening which advantageously corresponds to the opening of the component frame 22.

The first sliding bearing pairing is formed from a spherical segment-shaped surface 29 of the receiving frame 21 and a spherical segment-shaped inner surface 30 of the basic body 20.

The second sliding bearing pairing is formed from a spherical segment-shaped surface 33 of the component frame 22 and a spherical segment-shaped inner surface 34 of the clamping jaw 23.

It is further provided that an air gap between a surface 27 of the receiving frame 21 and an inner surface 28 of the component frame 22 is arranged. It is further provided that an air gap between a surface 31 of the receiving frame 21 and an inner surface 32 of the Component frame 22 is arranged. Preferably, the air gap is arranged in each case with respect to the respective sliding bearing pairing.

In addition, the device according to the invention is equipped with adjusting means in the form of setscrews 36, which allow a very accurate positioning of the component frame 22 relative to the receiving frame 21, whereby ultimately a precise adjustment of the optical component can be made.

An advantage of the alternative embodiment of the present invention proposed here is firstly that only segmented ball-segment-shaped bearing pairings are used, i. E. Although the plain bearings are formed spherical segment-shaped, describe in their elongated extent only a partial circle, so that a considerable space can be saved. In contrast, the bearing means or the bearing shell 3 of the first embodiment is formed fully circular and thus surrounds the ball head 4 completely.

In addition, the proposed embodiment is also equipped with a non-positive locking device according to the invention, which is formed here by the second sliding bearing pairing, in particular by the associated with the receiving frame 21 jaw 23. It is envisaged that the jaw 23 is connected via two projections 25 with two threaded seats 24 with the receiving frame 21, wherein in each case screws 26 are provided, through which the distance between the projections 25 and the threaded seats 24 can be adjusted. Accordingly, in this embodiment, by a frictional connection between the receiving means and the Storage means a locking device with an extremely low slip can be realized.

Claims

claims:

1 . Device for receiving, aligning and adjusting an optical component (1 1), comprising

a receiving means for fixed attachment of the device, as well

a bearing means for the at least pivotable attachment of the optical component (1 1) relative to the receiving means,

characterized in that

a fixing means is provided, which is adapted to produce a frictional connection between the receiving means and the bearing means.

2. Apparatus according to claim 1, characterized in that the receiving means is designed as a receiving cylinder (2), wherein the receiving cylinder (2) has a hollow cylindrical shape for receiving the bearing means.

3. Device according to one of the preceding claims, characterized in that the bearing means comprises a hollow cylindrical bearing shell (3), and a ball head (4), wherein the ball head (4) is pivotally received within the bearing shell (3), wherein the ball head ( 4) for receiving the optical component (1 1) is set up.

4. Device according to one of the preceding claims, characterized in that the fixing means comprises a ring (6), which is suitable at least for non-positive connection with the ball head (4).

5. Device according to one of the preceding claims, characterized in that a union nut (7) is provided, which is screwed onto a thread (8) of the receiving cylinder (2) and with the ring (6) can come into contact.

6. Device according to one of the preceding claims, characterized in that a holder (5) between the ball head (4) and the optical component (1 1) is provided.

7. Device according to one of the preceding claims, characterized in that the holder (5) with a lever (100) is connected.

8. Device according to one of the preceding claims, characterized in that the lever (100) is detachably connected to the holder (5).

9. The device according to claim 1, characterized in that the receiving means is configured as a receiving frame (21), wherein a component frame (22) is provided for receiving the optical component, wherein at least one bearing pair, preferably two bearing mounts between the receiving frame (21 ) and the component frame (22) are provided.

10. The device according to claim 9, characterized in that a first sliding bearing pairing and a second sliding bearing pairing is provided, wherein the sliding bearing pairings are provided on the opposite sides of the receiving frame (21) and the component frame (22).

1 1. Apparatus according to claim 9 or 10, characterized in that the fixing means is designed as a clamping jaw (23), wherein at least one sliding bearing pairing with the clamping jaw (23) is provided, wherein the clamping jaw (23) can be deflected to block the sliding bearing.

12. Device according to one of claims 9 to 1 1, characterized in that the first pair of sliding bearings of a spherical segment-shaped surface (29) of the component frame (22) and a spherical segment-shaped inner surface (30) of the base body (20) is formed.

13. Device according to one of claims 9 to 12, characterized in that the second sliding bearing pairing of a spherical segment-shaped surface (33) of the component frame (22) and a spherical segment-shaped inner surface (34) of the clamping jaw (23) is formed.

14. Device according to one of claims 9 to 13, characterized in that an air gap between a surface (27) of the receiving frame (21) and an inner surface (28) of the component frame (22) is provided.

15. Device according to one of claims 9 to 14, characterized in that an air gap between a surface (31) of the receiving frame (21) and an inner surface (32) of the component frame (22) is provided

16. Device according to one of claims 9 to 15, characterized in that the receiving frame (21) and / or the component frame (22) is equipped with relief holes and / or relief milling.

17. Device according to one of claims 9 to 16, characterized in that the fixing means is formed at least from the clamping jaw (23), wherein provided that the clamping jaw (23) via two projections (25) with two threaded seats (24) with the Receiving frame (21) is connected, wherein in each case screws (25) are provided, through which the distance between the projections (25) and the threaded seats (24) can be adjusted.

18. Device according to one of claims 9 to 17, characterized in that the connection frame (21) and / or the component frame with adjusting screws (36) are equipped.

19. Device according to one of the preceding claims, characterized in that the receiving means with a base body (1, 20) is connected, wherein the base body (1, 20) for mounting the device on an assembly, work and / or measuring station and / or laboratory structures is set up.

20. Device according to one of the preceding claims, characterized in that the base body (1, 20) is designed as a connecting element.