Device for collinear transfer of optical axes

 

(57) Abstract:

Usage: test and measurement equipment, namely, devices used for accurate installation, alignment and operation of large systems Gothic. The device is designed for high-collinear transfer of optical axes at distances of a meter or more when operating it in arbitrary positions. The inventive device includes an inner tube with a sealed end that is installed in the outer tube on two supports, the volume between the tubes filled with fluid. On the lateral surface of the external and internal tubes has four symmetrically placed Windows, which is installed with the bellows. Before the input and output Windows in the inner pipe is installed on pentaprism. In addition, the device entered the compensator weight mounted on the middle of the length of the inner tube, two additional bellows mounted in the ends of the outer tube, pentaprism with the spatial path of beams and one of the prisms is made in the form of gimbal and the other in the form of a ball bearing. 2 Il.

The invention relate to measuring and control technique, namely, devices that can be used the high-precision collinear transfer of optical axes at distances of a meter or more in its operation in arbitrary positions [1]

A device of the class collinear transfer prism system 180ocontaining the inner and outer tubes, the side surfaces each of which has two Windows, two pentaprism installed in the inner tube in front of the Windows, while the inner pipe is installed in the external on the supports with the possibility of a limited axial displacement and rotation [2]

The obstacles to improving the accuracy of the device number of the linear transfer of the optical axes, are the deformation of the inner tube under the action of gravity, the separation of the rays roof faces pentaprism limited axial movement and rotation of the inner pipe.

The closest in technical essence to the invention is a device for collinear transfer of optical axes containing the inner and outer tubes, sealed ends, on the side which made four symmetrically placed Windows, the Windows are fitted with bellows inner tube is installed in the outside on two pillars, two pentaprism installed in the inner tube in front of the input and output Windows, the volume between the tubes filled with liquid [3]

By reason of the receipt is vozmozhnosti compensation residual deflection of the inner tube, because of ghosting and the presence of axial movement and rotation of the inner tube.

The present invention is a device for increasing accuracy collinear transfer of rays of the optical axes.

The technical result improved precision device for collinear transfer of optical axes is achieved in that in a device containing an outer and an inner tube, on the side which made four, symmetrically placed Windows, the Windows are fitted with bellows, the inner pipe is made with a sealed Tercel and set in the external on two pillars, two pentaprism installed in the inner tube in front of the input and output Windows, the volume between the tubes filled with liquid in the device introduced two additional compensator bellows, which are installed at the ends of the outer tube, and a balancer weight is installed on the middle of the length of the inner,on its outer diameter, the pentaprism front of the entrance window is made with a spatial course of the rays, with one of the abutments are made in the form of a gimbal, knitted with the external and internal pipes, and the other in the form of a ball bearing fixed to the inner pipe.

Device for collinear transfer optical axis contains the inner pipe 1 and outer pipe 2. On the lateral surfaces of the pipes 1 and 2 are open 3-6, which has a bellows 7 10. In the inner pipe before Windows 3 l 4 installed pentaprism 11 and 12. The inner tube 1 is installed in the outer 2 on two supports, each of which is located at a distance of 0.2 l from the ends of the inner pipe 1, where l is the length of the inner pipe 1. The first support includes a frame 13 and two gifts mutually perpendicular axes 14 and 15, when the frame 15 is installed between pipes 1 and 2 are coaxially take off. Axis 14 is connected rigidly with the frame and through the bearings 16 with the inner pipe 1, axis 15 by means of bearings 17 are connected with the frame 13 and is rigidly with the outer tube 2. Axis 14 lies in a plane parallel to the base of pentaprism 11 12. The second support 18 is made in the form of a ball bearing set outer diameter of the inner tube 1 with a gap relative to the outer tube 2. On the outer diameter of the inner tube 2, at the distance of 0.5 l from the end of the inner tube 1, a compensator weight (balancers) 19. The volume between the tubes 1 and 2 filled with a liquid 20. In the outer tube 2 at its ends, mounted on the bellows 21. - 2.

The device operates as follows.

The outer tube 2 is mounted on a deformable surface or structure occupying an arbitrary spatial position.

High accuracy of the device is ensured by the stability of the inner tube 1: it does not deform under its own weight because suspended in the liquid 20, and the residual unbalance is compensated by the beams 19. The bellows 7 -10 exclude the transfer of deformation of the outer tube 2, the inner tube 1, and their symmetrical arrangement eliminates the effects of excessive force by the fluid 20 and allows the inner pipe 1 to be in equilibrium, not caving in supports. When changing the ambient temperature bellows 21, bordering air through the holes 23 of the cover 22, eliminate excess forces from the fluid 20. Since the first bearing 13 -17 located at a distance of 0.2 l where l is the length of the inner pipe 1, it allows pentaprism 11 and 12 do not change the mutual angular position under the bias of the residual deflection of the inner tube 1 and the difference in coefficients of volumetric thermal expansion of the fluid 20 and the material of the inner tube 1.

The sighting beam direction POSM the presence of pentaprism with the spatial course of the rays 12 (4) image quality as eliminates ghosting and scattering of light on the edge of the cover, typical of the prisms with roofs.

Thus, the device provides higher accuracy collinear transfer axis direction and spaced at distances of the order of a meter or more when installing it on a deformable structure and operation in arbitrary positions.

Device for collinear transfer of optical axes containing an outer and an inner tube, on the side are four symmetrical Windows, the Windows are fitted with bellows, the inner pipe is made with sealed ends and set in the external on two pillars, two pentaprism installed in the inner tube in front of the input and output Windows, the volume between the tubes filled with a liquid, characterized in that the compensator weight, two additional bellows, which are installed at the ends of the outer tube, and a balancer weight is installed on the middle of the length of the inner tube at its outer diameter, the pentaprism front of the exit window is made with a spatial course of the rays, with one of the supports is made in the form of gimbal associated with the external and internal is

 

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