Center-holed infrared lens processing technology
A processing technology and infrared technology, applied in the field of infrared lenses, can solve the problems of randomness, high rejection rate, large error, etc., and achieve the effects of production repeatability guarantee, production cost reduction, and yield improvement.
Inactive Publication Date: 2010-10-06
江苏南晶红外光学仪器有限公司
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Problems solved by technology
The biggest problem brought by this method is that the concentricity of the lens and the hole cannot be guaranteed, the error is too large, and it is random, so that the repeatability cannot be guaranteed, and the reject rate is also high during processing.
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Embodiment Construction
[0008] The present invention will now be described in further detail with reference to the drawings and preferred embodiments. These drawings are all simplified schematic diagrams, which merely illustrate the basic structure of the present invention in a schematic manner, so they only show the structures related to the present invention.
[0009] A center-punched infrared lens process, a center-punched infrared lens process. First, process the outer diameter of the rough milled lens of the lens. The outer diameter is slightly larger than the required outer diameter by 1 to 2 mm, and then the The lens is placed in the fixture, the center hole is punched on a precision drilling machine with a diamond drill, and then the inner hole is milled. After milling, the inner hole of the lens reaches the design accuracy, and the same specification is used by the optical centering and edging machine The inner hole zinc rod string the perforated lens, fix the perforated lens with optical glue,...
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The invention relates to center-holed infrared lens processing technology, which comprises the following steps of: processing the external diameter of a blank milling sheet of a lens, wherein the external diameter dimension is 1-2mm greater than the needed external diameter dimension; placing the lens into a fixture, and performing central hole punching by using a diamond bit on a precision drilling machine; performing inner bore milling, making the milled inner bore of the lens reach the designed precision, stringing the holed lenses by using inner bore zinc bars with the same specification through an optical centering edging machine, and fixing the holed lenses by using an optical cement; grinding excircles to reach the precision of the excircles of the lenses; and finally, performing posttreatment and cleaning. The center-holed infrared lens processing technology effectively guarantees the concentricity of the excircle and the inner bore of the infrared lens, obviously reduces the error, guarantees the production repeatability of the product, obviously improves the rate of finished products, and reduces the production cost.
Description
Technical field [0001] The invention relates to a center-punched infrared lens for infrared optical instruments, in particular to a center-punched infrared lens processing technology. Background technique [0002] Infrared lenses such as germanium, silicon, etc. due to the special needs of the optical path, some of them need a through hole in the center of the lens to meet the optical design requirements, which requires us to punch in the center of the lens during processing. In the past, the traditional processing technology is to complete the process of punching after the outer dimension of the lens is processed. The biggest problem brought by this approach is that the concentricity of the lens and the hole cannot be guaranteed, the error is too large, and it is random, so that the repeatability cannot be guaranteed, and the scrap rate in the processing is also high. Summary of the invention [0003] In order to overcome the above shortcomings, the technical problem to be solve...
Claims
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Inventor 宋岳平陈国清
Owner 江苏南晶红外光学仪器有限公司