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Method for making metal optical lens cone

A technology of an optical lens and a manufacturing method, applied in the field of optical lenses, can solve the problems of precision requirements, limited heat resistance temperature, cost-intensive, inability to achieve sufficient accuracy, etc., to achieve the effect of improving assembly efficiency

Inactive Publication Date: 2009-04-01
ETHER PRECISION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Therefore, in order to overcome the shortcomings of plastic injection lens barrels and lens mounts and other mechanism positioning components that cannot meet the dimensional accuracy requirements and have limited heat resistance, it is a feasible direction to make lens barrels and lens mounts and other mechanism positioning components with metal materials. However, in order to meet the requirements of electromagnetic compatibility (EMC, electromagnetic compatibility), it is very costly to coat the surface of plastic products with metal materials. Secondly, if the metal lens barrel and lens base are made by stamping, it cannot achieve sufficient precision

Method used

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  • Method for making metal optical lens cone
  • Method for making metal optical lens cone
  • Method for making metal optical lens cone

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Experimental program
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Embodiment Construction

[0013] see Figure 1 to Figure 3 Shown, the manufacturing method of the metal optical lens barrel of the preferred embodiment of the present invention, its step 110, prepare several metal plate bodies: each of the metal plate bodies is stainless steel (stainless steel), copper or copper alloy material also can, comprise three A first plate body 22, 23, 24 and a second plate body 26. Each of the first boards 22 , 23 , 24 constitutes a lens barrel for light to enter and exit, and the second board 26 constitutes a lens barrel for accommodating optical lenses.

[0014] Step 120, opening holes: setting up several holes 28 with different inner diameters on each of the first and second plates 22, 23, 24, and 26 by etching. The etching method is chemical etching. , and first define the etching area by the photomask process and then perform etching. The steps are as follows:

[0015] First, coat a photoresist (photoresist) on each of the first and second plate bodies 22, 23, 24, 26, ...

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Abstract

The invention provides a preparation method used for metal optical lens and drawtube, comprising the steps as follows: firstly, a plurality of metal plates are prepared; all metal plates comprise a plurality of first plates and at least one second plate; subsequently, each first plate is respectively provided with a plurality of through holes; subsequently, the second plate is provided with a plurality of through holes in an etching way; subsequently, each first plate is attached to two sides of the second plate so as to lead all through holes to form the internal space and clear aperture of the optical lens and optical drawtube correspondingly; finally, all metal plates are cut to gain more than one optical lens and optical drawtubes, thus effectively improving the assembly efficiency of the optical lens and being suitable for the optical lens of high-precision requirement.

Description

technical field [0001] The invention relates to the technical field of optical lenses, and more specifically refers to a method for manufacturing a metal optical lens barrel. Background technique [0002] The known optical lens is composed of components such as a lens holder, a lens barrel, and a lens. The mechanism positioning components such as the lens barrel and the lens holder are mostly made of plastic injection, which is conducive to mass production. However, with the application trend of shrinking image sensors, the size of the optical lens must also be reduced accordingly. In this way, the use of plastic injection to make the positioning components such as the lens barrel and the lens mount will not meet the dimensional accuracy. Requirements, and the heat-resistant temperature of plastic products in the packaging process of optical lenses is also limited. Based on this, it is necessary to develop mechanism positioning components with higher precision and high ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/02C23F1/02
Inventor 张绍祺
Owner ETHER PRECISION