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Method for producing optical element with holding frame

A technology of optical components and manufacturing methods, which is applied in the direction of optical components, optics, manufacturing tools, etc., and can solve problems such as deterioration of optical characteristics and thickness changes of optical components

Inactive Publication Date: 2004-09-29
ALPS ALPINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the optical element material is pressed, if there is a volume error in the optical element material, the thickness of the optical element will change, not only the optical characteristics will deteriorate, but also the ideal optical position must be obtained for adjustment and fixing. There was a problem with positioning

Method used

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  • Method for producing optical element with holding frame
  • Method for producing optical element with holding frame
  • Method for producing optical element with holding frame

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Embodiment Construction

[0020] Embodiments of the present invention will be described in detail below with reference to the drawings. First, the first embodiment will be described. figure 1 It is a sectional view showing the optical element with a holder in the first embodiment of the present invention. figure 2 It is a sectional view showing the manufacturing equipment of the optical element with a holder in the first embodiment of the present invention. 3 is a cross-sectional view showing a manufacturing state of the optical element with a holder in the first embodiment of the present invention.

[0021] The optical element 1 with a holder in this embodiment is used, for example, in a sensor head of a CD player and a digital camera, etc., such as figure 1 As shown, it is composed of a cylindrical lens holder 10 and a spherical lens 20 mounted inside the lens holder 10 .

[0022] The lens holder 10 is used to hold the lens 20 and position the lens 20 in the optical device, and is made of, for ex...

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Abstract

A method for making a holder / optical-element assembly includes the steps of positioning a cylindrical holder material in a press-molding die, the holder material having a void part in the inner circumferential surface, positioning an optical-element material inside the holder material, heating the holder material and the optical-element material to their own softening temperatures, press-molding the holder material and the optical-element material to form a cylindrical holder and an optical element, respectively, thereby fixing the optical element to the inside of the holder, allowing a part of the optical element to project outwardly from the outer edge by pressure created during press-molding, and retaining the projected portion in the void part of the holder.

Description

technical field [0001] The present invention relates to a method of manufacturing an optical element with a holder in which the holder and the optical element are integrally formed, and more specifically, to a method of manufacturing an optical element with a holder formed by pressing the material of the optical element in the holder . Background technique [0002] Optical components such as lenses mounted in the sensor head of CD players and lenses used in digital cameras require high mounting accuracy when mounting. In order to meet this need, generally, an optical element with a holder is produced, which holds the optical element with a holder, and the required mounting accuracy is satisfied by the holder. Such a manufacturing method of an optical element with a holder, as shown in Patent Document 1, is to place an optical element material inside a cylindrical holder material and heat it, and press the holder material and the optical element material with a mold, To sha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/02C03B11/00C03B11/08G02B3/00
CPCC03B11/08C03B2215/46C03B2215/79C03B2215/73
Inventor 菊地公博
Owner ALPS ALPINE CO LTD
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