Aspheric surface processing method of high-precision CVD ZnSe lens

A processing method and aspheric technology, applied in lenses, optics, instruments, etc., can solve the problems of difficult to remove the damage layer, the surface of the turning lens cannot reach the high-level surface defect index, and the center deviation index is not controlled by the process.

Active Publication Date: 2016-04-06
TIANJIN JINHANG INST OF TECH PHYSICS
View PDF4 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this process method can achieve the purpose of mass production, its disadvantages are: there is no edging process, and the center deviation index is not controlled by the process; the semi-finishing cutting depth and feed rate of the components are relatively large, and the damaged layer in the subsequent finishing turning It i

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Aspheric surface processing method of high-precision CVD ZnSe lens
  • Aspheric surface processing method of high-precision CVD ZnSe lens
  • Aspheric surface processing method of high-precision CVD ZnSe lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0033] According to the method of the invention, aiming at the high-order aspheric CVDZnSe lens, a single-point diamond turning machine tool and a natural diamond arc cutter are used for ultra-precision turning processing. A kind of high-precision CVDZnSe lens aspherical surface turning processing method related to the present invention is described below in conjunction with accompanying drawing and embodiment, its processing technology flow see figure 1 .

[0034] The first step: cutting;

[0035] The second step: grinding the outer circle;

[0036] The third step: coarse grinding;

[0037] The fourth step: finishing tooling;

[0038] The fifth step: rough car;

[0039] The sixth step: semi-finished car;

[0040]...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the single-point-diamond super-precision cutting technology field and mainly relates to a single point diamond turning processing method of a high-precision CVD ZnSe lens. The invention aims at providing the processing method which can be used to guarantee technology indexes of CVD ZnSe lens aspheric surface shape precision, surface imperfection, decentration and the like. The method is mainly characterized in that a single point diamond turning machine tool and a diamond arc knife are used to carry out super-precision turning processing on the CVD ZnSe lens; and a technological method processing flow mainly comprises blanking, external grinding, rough grinding, processing tooling, rough turning, semi-finishing turning and finish turning. The method has the advantages that an external grinding process is taken as a first process; through finish machining of a blank excircle, rough grinding technology index control and precision turning processing tooling, a lens center deviation technology index is guaranteed; simultaneously, a single point diamond turning process step is divided into the semi-finishing turning and the finish turning so that damaged layers when rough turning is performed on a blank material are effectively reduced, and the surface imperfection and a surface shape technology index are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of single-point diamond turning, and relates to a high-precision CVDZnSe lens aspheric surface processing method. Background technique [0002] Chinese Patent Publication No. CN1785560A, date of publication is June 14, 2006, titled "Processing Method of Zinc Selenide and Zinc Sulfide Aspheric Optical Components" discloses a processing technology for aspheric optical components, mainly used for selenium Processing of ZnC and ZnS aspheric components. Although this process method can achieve the purpose of mass production, its disadvantages are: there is no edging process, and the center deviation index is not controlled by the process; the semi-finishing cutting depth and feed rate of the components are relatively large, and the damaged layer in the subsequent finishing turning It is difficult to eliminate, and the turning lens surface cannot reach high-level surface defect indicators; the semi-finishing and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G02B3/02
CPCG02B3/02
Inventor 杨坤回长顺李伟皓武瑛李圣义蒙建雄唐海瑞李宁
Owner TIANJIN JINHANG INST OF TECH PHYSICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap