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Precise Axis Fixing Method for Wedge Lens

A lens and wedge-shaped technology, which is applied in the field of optical engineering, can solve the problems of limited precision of lens axis fixation, inconvenient operation, and inability to realize wedge-shaped lens element axis fixation, etc., achieving high versatility and practicability, and ensuring the effect of accuracy

Inactive Publication Date: 2017-07-18
LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the known method of fixing the lens axis is guaranteed by assembling the lens element into the machined reference hole or reference plane, or realizing the axis fixing through near-field collimation, so that the accuracy of lens axis fixing is limited.
In addition, the focus gauges and centering gauges on the market can only fix the axis of coaxial spherical elements with short radius of curvature and small diameter, which is inconvenient to operate, and cannot fix the axis of wedge-shaped lens elements

Method used

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  • Precise Axis Fixing Method for Wedge Lens
  • Precise Axis Fixing Method for Wedge Lens
  • Precise Axis Fixing Method for Wedge Lens

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Embodiment Construction

[0020] The specific embodiment and working principle of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0021] See attached figure 1 , a wedge-shaped lens precision axis fixed method, according to the following steps:

[0022] Step 1: Place a standard mirror 2 on the rotary indexing table 3, and set up an autocollimator 1 on one side of the standard mirror 2, such as figure 2 As shown, adjust the posture of the autocollimator 1 so that the crosshair image reflected by the standard mirror 2 to be tested coincides with the inherent self-collimation crosshair of the autocollimator 1, that is, the surface normal of the standard mirror 2 is collimated. straight;

[0023] In this embodiment, the autocollimator 1 adopts the Collapex AC300 digital display photoelectric autocollimator, which has the functions of automatic data collection and storage, and is easy to realize intelligent control. Its main performance inde...

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Abstract

The invention discloses a method for accurately setting an optical axis of a wedge lens. A wedge lens optical axis setting datum is built by utilizing a rotary indexing table, a standard lens, an autocollimator and an internal focusing telescope according to a wedge lens wedge angle value given by a manufacturer; the wedge lens is added; the attitude of the wedge lens or the attitude of the internal focusing telescope is adjusted; a method of datum transition and multiple datum composite localization is adopted, so that the aim of accurately setting the optical axis of the wedge lens is achieved. The method for accurately setting the optical axis of the wedge lens has the remarkable effects that based on the principle of plane and curved-surface reflecting far-field imaging, through copying and transmitting the datum and compensating wedge angles, multiple datums are built to monitor plane and curved-surface normal of the wedge lens at the same time, and the accuracy of set wedge lens optical axis is ensured; the optical axis of the wedge lens with different wedge angles, different calibers and different curve radius can be accurately set, and the method is higher in universality and practicability.

Description

technical field [0001] The invention relates to the technical field of optical engineering, in particular to a precise axis-fixing method of a wedge-shaped lens. Background technique [0002] At present, the known method of lens alignment is to ensure the alignment by assembling the lens element to the machined reference hole or reference surface, or realize the alignment by near-field collimation, so that the accuracy of lens alignment is limited. In addition, the focus gauges and centering gauges on the market can only fix the axis of coaxial spherical elements with a short radius of curvature and small diameter, which is inconvenient to operate, and cannot achieve the axis fixation of wedge-shaped lens elements. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the object of the present invention is to provide a precise axis-fixing method for a wedge-shaped lens. The method is based on a datum transition and simultaneous monitoring of multi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/02
CPCG02B7/023
Inventor 叶朗熊召徐旭独伟锋袁晓东周海冯斌李珂
Owner LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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