CN2478132Y

CN2478132Y - Fixing regulator of optical reflector

Info

Publication number: CN2478132Y
Application number: CN 00240694
Authority: CN
Inventors: 姚正秋; 郝伟娜
Original assignee: Nanjing Research And Development Center Of Astronomical Instruments Chinese Academy Of Sciences
Current assignee: Nanjing Research And Development Center Of Astronomical Instruments Chinese Academy Of Sciences; Nanjing Astronomical Instruments Co Ltd
Priority date: 2000-10-23
Filing date: 2000-10-23
Publication date: 2002-02-20
Anticipated expiration: 2010-10-23

Abstract

The utility model discloses a fixing and adjusting device of optical mirror, which is composed of a seat, a support ring, a support plate, an adjusting screw and a connecting component; the support ring is provided between the support plate and the seat, and the joint face of the inner circle of the support ring and the support plate is a sphere; the center of this sphere is on the optical axis and is coincided with the position of optical axis of the optical mirror curved surface top point which is regulated by the optical system. When the optical mirror is regulated, the optical mirror can perform two-dimensional inclined rotation and can maintain the position of optical element curved surface top point unchanged on the optical axis through regulating 4 adjusting screws at the end of the support plate; the optical mirror can perform parallel movement in tow directions through regulating 4 adjusting screws of the ex-circle surface of the seat.

Description

The fixedly adjusting gear of optical mirror

What the utility model application related to is the fixedly adjusting gear of the fixedly adjusting gear, particularly optical mirror of optical element, belongs to the physical construction category.

For the aligning that guarantees optical system and reliable and stable, need fix and adjust each optical element in the system.With regard to single optical element; catoptron particularly; except will being fixed well; usually also need it can in same plane, do translation and in the adjustment around two rotations; and when doing the rotation adjustment; the position of summit on optical axis of wishing the catoptron curved surface remains unchanged, to reach the purpose of proofreading and correct light path.Though be disclosed at present or the existing optical adjusting frame of selling in market can accomplish to make optical mirror to do translation and around two or multiaxis rotation in same plane, but because structural restriction, generally can't satisfy the adjustment of centering, optical elements of large caliber, optical element is being done around X, when Y-axis is rotated adjustment simultaneously, the summit of optical element curved surface also randomly changing on optical axis, this has just increased the difficulty in dress school greatly concerning reflective optical system.

The utility model is exactly the fixedly adjusting gear that a kind of optical mirror is provided at above-mentioned the deficiencies in the prior art part, this device can satisfy various bores particularly in, the adjustment of large-aperture optical catoptron, have simple in structure, good manufacturability, characteristics such as cost of manufacture is low, be in course of adjustment, not only can make things convenient for the translation that realizes the X-Y direction independently and around two rotations, and optical element is done around X, Y-axis is rotated when adjusting, this device can keep the position on optical element curved surface summit constant on optical axis, and the angle of optical element and optical axis is constant when doing the translation of X-Y direction.

Specific design scheme of the present utility model is: the fixedly adjusting gear of optical mirror is made up of bearing, support ring, back up pad, adjustment screw, connecting elements etc., support ring is arranged between support plate and the bearing, the composition surface of its inner ring and back up pad is a sphere, the centre of sphere of this sphere is positioned on the optical axis, and requires controlled optical mirror curved surface summit to overlap in the position of optical axis with optical system; The rear end of back up pad is connected with bearing with radius and along the equally distributed adjustment screw of circumference by 4, and its front end connects optical mirror by connecting elements and be fixing; The outside of bearing evenly is provided with 4 at periphery and adjusts screw.

The utility model is described in further detail below in conjunction with drawings and Examples.

The omnipotent adjustment rack of Fig. 1 for selling on the market.

Fig. 2 is a kind of multidimensional adjustment rack structural representation.

Fig. 3 is a structural representation of the present utility model.

Contrast Fig. 1, optical element is fixed in the picture frame of the adjustment rack the superiors, and set screw [1] is used to regulate optical element and rotates around X-axis.Set screw [2] is used to regulate optical element and rotates around Y-axis.Knurled nut [3] is used to regulate lifting.Part [4] and part [5] can make optical element do the translation of X-Y direction in same plane.This adjustment rack since each to adjust structure of action independent, therefore easy to adjust, accurate, but complex structure, cost of manufacture are higher.

Contrast Fig. 2, rotation set screw [6], [8] can make optical element realize the translation of X-Y direction, rotation micrometer head [9] and [10] can be done the rotation around X, Y-axis, rotation [7], can realize Z to mobile, [11] are locking member, in order to fixing optical element.This adjusting gear is relatively simple for structure and can make optical element do the adjustment of five dimension directions equally, but the scope of being adjusted is less.

The existing adjustment rack of selling in above-mentioned market is because structural restriction, generally can't satisfy the adjustment of centering, optical elements of large caliber, optical element is done around X, when Y-axis is rotated adjustment simultaneously, the summit of optical element curved surface also randomly changing on optical axis, this has just increased the difficulty in dress school greatly concerning reflective optical system.

Contrast Fig. 3, in the present embodiment, the fixedly adjusting gear of optical mirror connects with support [12] by bearing [15] and is fixing, and optical mirror [18] connects with back up pad [17] by connecting elements [19] and fixes, and back up pad [17] is passed through adjustment screw [13] and connected with bearing [15] and fix.Support ring [16] is arranged between support plate [17] and the bearing [15], the composition surface of its inner ring and back up pad [17] is a sphere, the centre of sphere of this sphere is positioned on the optical axis, and requires controlled optical mirror [18] curved surface summit to overlap in the position of optical axis with optical system.

During adjustment, can make optical mirror [18] do the inclination rotation of two dimension by 4 adjustment screws [13] of adjusting back up pad [17] rear end, 4 adjustment screws [14] of adjusting bearing [15] periphery can make optical mirror [18] do the translation of two directions of X-Y.

This device is specially adapted to medium-sized reflecting curved surface system, and radius-of-curvature is generally in 10 meters.

Claims

1. the fixedly adjusting gear of optical mirror is made up of bearing, support ring, back up pad, adjustment screw, connecting elements etc., it is characterized by:

(1) support ring is arranged between support plate and the bearing, and the composition surface of its inner ring and back up pad is a sphere, and the centre of sphere of this sphere is positioned on the optical axis, and requires controlled optical mirror curved surface summit to overlap in the position of optical axis with optical system;

(2) rear end of back up pad is connected with bearing with radius and along the equally distributed adjustment screw of circumference by 4, and its front end connects optical mirror by connecting elements and be fixing;

(3) outside of bearing evenly is provided with 4 at periphery and adjusts screw.