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Schmidt roof prism processing method and positioning tool thereof

A Technology of Smit Roof and Positioning Tooling

Pending Publication Date: 2018-08-21
马鞍山市江南光学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides a processing method for a Schmidt roof prism, and its purpose is to solve the problem that the accuracy of the roof angle is difficult to be controlled within 1" in the production of the existing Schmidt roof prism

Method used

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  • Schmidt roof prism processing method and positioning tool thereof
  • Schmidt roof prism processing method and positioning tool thereof
  • Schmidt roof prism processing method and positioning tool thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] like figure 2 As shown, the positioning tool of a Schmidt roof prism in this embodiment is specially designed for the controlled positioning of the included angle grinding of the roof surface of the Schmidt roof prism, namely figure 1 The accuracy of the 90° angle of the roof surface B of the shown Schmidt roof prism (before each edge is chamfered) is controlled within 1″. The structure of the tooling will be described below in conjunction with the accompanying drawings.

[0051] The positioning tool of this embodiment includes a base plate 1 , a body positioning block 1 , a body positioning block 2 3 , a prism side positioning block 4 , a limit block 5 , a fixed adjustment block 6 and a support block 7 . Among them, the substrate 1 is used as a support base, and the body positioning block 1 2, the body positioning block 2 3, the limit block 5, the fixed adjustment block 6 and the support block 7 are all fixed on the substrate 1 by optical glue, and the substrate 1 Th...

Embodiment 2

[0057] This embodiment provides a kind of processing method of Schmidt roof prism, which is used to process the semi-finished Schmidt roof prism blank, that is, grinding side A and roof surface B, and ensuring that the accuracy of the roof angle is within 1 ". Here The so-called Schmidt roof prism blank means that it has a preliminary shape, but each surface is rough, and generally the margin of each surface is within 0.2mm.

[0058] The specific operation steps of the processing method of the Schmidt roof prism are:

[0059] 1. The first side processing

[0060] Take a square brick body with a 90° accuracy within 20″, wipe the surface with a dust-free paper, and glue one end face of the Schmidt roof prism blank to be processed to the square brick body with 417# optical glue. 4 pieces of prisms can be attached to the body of each square brick, and 40 pieces of prisms are evenly arranged on a glass plate with a diameter of 300mm. They are bonded with 417# optical glue, and the...

Embodiment 3

[0076] The present embodiment provides a kind of processing method of Schmidt roof prism, which is basically the same as embodiment 2, the difference is: in the B process of step 2, the side surface of the Schmitt roof prism blank processed through step 1 is used with 500 Purpose Wipe with polishing powder solution, and then use dust-free paper to dip in ether and ethanol according to a 3:1 mixture and wipe clean; the Schmitt roof prism and backing body 8 in step c are sent to the oven and heated at 100°C 8 hours;

[0077] In the process ③ of step 3, the grinding is divided into rough grinding and fine grinding. During rough grinding, the sand particle size is 330 mesh, the grinding speed is 80 rpm, and the feed rate is 9mm / min; the fine grinding sand particle size is 510 mesh, The grinding speed is 65 rpm, and the feed rate is 6.5 mm / min; polishing is divided into rough polishing and fine polishing. Kg pressure; during fine polishing, use a 530-mesh polishing powder solution...

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Abstract

The invention discloses a Schmidt roof prism processing method and a positioning tool thereof, and belongs to the technical field of optical prisms. In the positioning tool, a first backrest positioning block with a first backrest positioning surface and a second backrest positioning block with a second backrest positioning surface are fixed on the upper surface of a substrate, the first backrestpositioning surface and the second backrest positioning surface are perpendicular to the upper surface of the substrate, and a prism side processing block is positioned above the substrate and provided with a prism side processing surface perpendicular to the upper surface of the substrate. The processing method includes the steps: firstly, processing a first side surface of a prism, and positioning and processing a second side surface of the prism through the positioning tool; secondly, positioning and initially processing two roof surfaces through the positioning tool; finally, taking one roof surface as a standard to grind the other reference surface, and enabling the accuracy of a roof angle to be within 1''. According to the method, process steps are optimized without changing an existing processing device, the method ensures that the processed roof angle is within 1'', the accuracy of surfaces is high, technical requirements are low, and production efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of optical prism processing, and more specifically relates to a processing method of a Schmidt roof prism and a positioning tool thereof. Background technique [0002] A prism is a prism composed of optical materials. The refracting and reflecting surfaces of all prisms are collectively called the working surface, the intersection line of the two working surfaces is called the prism, and the section perpendicular to the prism is called the main section. Prisms play many different roles in optics. The combination of prisms can be used as beam splitters, polarizers, etc., but in most applications, only the dispersion function of prisms is used, or the direction of the image, the beam A function that changes the direction of propagation. The dispersion function makes the prism act as a dispersion element, such as the prism in the spectrometer, spectrograph, and monochromator, it plays the role of dispersion. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B13/00B24B13/005B24B1/00
CPCB24B1/00B24B13/00B24B13/005Y02P40/57
Inventor 金正彬
Owner 马鞍山市江南光学有限公司
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