Unlock instant, AI-driven research and patent intelligence for your innovation.

Super-hemisphere polishing device and application thereof for optical lenses

An optical lens and hyper-hemispheric technology, applied in the direction of optical surface grinders, grinding/polishing equipment, grinding machines, etc., can solve the problems of low efficiency, high cost of lens processing, and shorten the time of lens processing, so as to improve work efficiency and improve Surface accuracy and the effect of increasing the contact area

Inactive Publication Date: 2015-04-29
SHANDONG YANGGU CONSTANT CRYSTAL OPTICS
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High-speed polishing greatly improves the polishing efficiency and greatly shortens the processing time of the lens; low-speed polishing mainly focuses on the precision of the lens, but behind the high precision is low efficiency, resulting in high lens processing costs and difficult to achieve civilianization

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
  • Super-hemisphere polishing device and application thereof for optical lenses
  • Super-hemisphere polishing device and application thereof for optical lenses
  • Super-hemisphere polishing device and application thereof for optical lenses

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A device for hyper-hemispherical polishing of optical lenses, comprising: a multi-axis grinding and polishing machine, the multi-axis grinding and polishing machine includes a main shaft, a plurality of auxiliary shafts and a hyper-hemispherical mirror disk, the angle between the main shaft and the horizontal is 60°.

[0025] The number of auxiliary shafts is 5, that is, take the six-axis machine (H018) as an example.

Embodiment 2

[0027] A kind of method that utilizes device as described in embodiment 1 to carry out hyper-hemispherical polishing for optical lens, comprises steps as follows:

[0028] 1) The main shaft of the multi-axis grinding and polishing machine is inclined 30° along the vertical line to realize fine grinding and polishing of the super hemispherical mirror disk, that is, the radial arc from the apex of the mirror disk to the waist is 90-120°;

[0029] 2) cutting the raw material of the optical lens to be processed to form a preliminary spherical part;

[0030] 3) milling the spherical part to form a spherical part;

[0031] 4) Installing the spherical part in step 3) on the hyper-hemispherical mirror disc, and then finely grinding and polishing the spherical part.

[0032] Take plano-convex optical parts as an example:

[0033] The parameters are as follows:

[0034] The radius of curvature of the first surface R1=+∞,

[0035] The radius of curvature of the second surface R2 = 10...

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

A super-hemisphere polishing device comprises a multi-axis lapping polisher. The multi-axis lapping polisher comprises a spindle, a plurality of auxiliary shafts and a super-hemisphere lens plate, and an included angle between the spindle and the horizontal level is 60-80 degrees. The mounting angle of the spindle is beneficial for cementing more lenses, super-hemisphere polishing is realized, contact area of the lens plate and an adhesive plate is increased, finished-plate processing of like lenses is realized, and excellent hardware conditions are created for ensuring uniformity of products. During processing of convex spherical surfaces, the method overcomes a low-efficiency processing mode which can process single plate but cannot process finished-plates when (phi+b) / 2R>=0.6691. Further, the lens plate with cemented parts can realize super hemisphere, that is, 180o>2R>240o , a high-precision metroscope or altimeter directly and accurately measures the diameter phi of the processed lens plate in the entire process of processing, and further the radius R can be obtained (R=phi / 2). Accordingly, surface figure accuracy is improved, sample processing is omitted, and the problem of damage to the polishing surface caused by multiple measurements in the original processing course is solved.

Description

technical field [0001] The invention relates to a hyperhemispherical polishing device for an optical lens and its application, and belongs to the technical field of cold processing of an optical lens. Background technique [0002] At present, in the lens polishing process, there are mainly two processing modes: high-speed polishing and low-speed polishing, which are collectively referred to as single-sided classical polishing. Classical polishing must be performed on a specific spherical (less than hemisphere) mirror disk. High-speed polishing greatly improves the polishing efficiency and greatly shortens the processing time of the lens; low-speed polishing mainly focuses on the precision of the lens, but behind the high precision is low efficiency, resulting in high lens processing costs and difficult to achieve civilianization. Moreover, no matter what kind of polishing method is used, it cannot get rid of the technological process of making the plate first, then making th...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B24B13/00
CPCB24B13/00
Inventor 刘学勇刘学芬刘文成
Owner SHANDONG YANGGU CONSTANT CRYSTAL OPTICS