Method for mfg optical elements

A technology for optical components and manufacturing methods, applied in manufacturing tools, glass pressing, glass manufacturing equipment, etc., can solve cumbersome problems and achieve the effect of high production efficiency and high surface accuracy
CN1590326AActive Publication Date: 2005-03-09HOYA CORP
1 Cites 11 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HOYA CORP
Publication Date
2005-03-09

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A method of manufacturing optical elements in which a precision-processed pressing mold is used and the molding surface thereof is transferred to a heat-softened preformed molding material to form an optically functional surface. In the method, post processing for centering and edging are conducted following precision pressing to determine the center axis of an optical element and / or to form on the periphery of the optical element a portion for mounting on some other component. The preformed molding material has a weight within a range of 110 to 155% of a weight of the optical element when the optical element has a biconvex or convex meniscus shape. The preformed material has a weight within range of 180 to 240% of a weight of the optical element when the optical element has a biconcave or concave meniscus shape.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to a manufacturing method of an optical element in which an optical function surface is formed by replicating its molding surface on a heated and softened molding material using a precisely processed molding die. In particular, the present invention relates to a method of manufacturing an optical element in which an optical axis of an optical element is determined by centering and edging after precision extrusion, or a mounting portion for other components is formed on the periphery of the optical element. Background technique

[0002] As a method for producing optical elements, there is known a precision extrusion method in which optical elements such as lenses are formed by extrusion molding preformed molding materials such as glass preforms in a heated and softened state. The optical functional surface of the optical element obtained by precision extrusion does not need to be processed after cutting, grinding, etc., and...

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