Method for manufacturing spectacle lens and coating device for coating liquid for base material of spectacle lens

A technology for spectacle lenses and a manufacturing method, which is applied in the directions of glasses/protective glasses, glasses/goggles, and devices for coating liquid on surfaces, etc., can solve the problems of difficulty in forming sufficient uniformity and the like

Inactive Publication Date: 2016-01-06
HOYA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the method disclosed in Patent Document 1, it is difficult to form a sufficiently uniform film in the lens surface of the spectacle lens base material.

Method used

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  • Method for manufacturing spectacle lens and coating device for coating liquid for base material of spectacle lens
  • Method for manufacturing spectacle lens and coating device for coating liquid for base material of spectacle lens
  • Method for manufacturing spectacle lens and coating device for coating liquid for base material of spectacle lens

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no. 1 Embodiment approach

[0028] Below, use Figure 1 ~ Figure 3 The first embodiment of the manufacturing method of the spectacle lens and the coating liquid coating device for the spectacle lens base material of the present invention will be described in detail.

[0029] The manufacturing method of the spectacle lens of this embodiment is as follows figure 1 implemented as shown in the flowchart. That is, the lens positioning step S1, the coating step S2, and the high-speed rotation step S3 are sequentially performed. In the coating step S2, the coating liquid coating step S2a and the coating liquid spreading step S2b are sequentially performed, and the details will be described later.

[0030] In the lens positioning step S1, such as Figure 2A As shown, the spectacle lens base material 1 is positioned between a pair of nozzles 2a, 2b for coating liquid application. The spectacle lens base material 1 is formed in a disk shape, and is arranged such that the optical axis C of the lens surfaces 1a,...

no. 2 Embodiment approach

[0062] Next, use Figure 4 The second embodiment of the manufacturing method of the spectacle lens of the present invention will be described in detail with reference to FIG. 5 . exist Figure 4 and Figure 5, for utilizing with Figure 1 ~ Figure 3 Members that are the same as or equivalent to those described will be given the same reference numerals, and detailed descriptions will be appropriately omitted.

[0063] The manufacturing method of the spectacle lens of this embodiment can use image 3 The illustrated spectacle lens substrate is applied with a coating liquid coating device 11 . Also in this embodiment, the disc-shaped spectacle lens base material 1 is processed in a state where the optical axis C is directed in the horizontal direction. In addition, in this embodiment, a thermoplastic coating liquid, a thermosetting coating liquid, an ultraviolet-curable coating liquid, etc. can also be used.

[0064] In the manufacturing method of the spectacle lens of this e...

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Abstract

A coating liquid (3) is horizontally jetted from nozzles (2a, 2b) so that lens surfaces (1a, 1b) of a spectacle lens base material (1) arranged so that the optical axis (C) is oriented in the horizontal direction are coated with the coating liquid (3) (step (S2a)). The spectacle lens base material (1) is rotated at a first rotational speed with the optical axis (C) as the rotational center, thus using centrifugal force to coat and spread the coating liquid (3) over the lens surface (step (S2b)). The spectacle lens base material (1) is rotated at a second rotational speed higher than the first rotational speed, thus using centrifugal force to splash the excess (3a) of the coating liquid (3) outside the spectacle lens base material (1) (step (S3)). Thus, a highly uniform film can be formed over the lens surface of a spectacle lens.

Description

technical field [0001] The present invention relates to a method of manufacturing a spectacle lens in which a coating liquid is applied to both surfaces of a spectacle lens base material, and a coating liquid coating device for a spectacle lens base material. Background technique [0002] As a method of forming a film on a substrate for producing spectacle lenses (hereinafter, simply referred to as a spectacle lens substrate), there are dip coating, spray coating, spin coating, and the like. Among these methods, the method capable of uniformizing the film thickness of the hard coat film is the spin coating method. [0003] For example, Patent Document 1 discloses a coating liquid coating method in which a coating liquid is applied to a spectacle lens substrate by a spin coating method. [0004] According to the coating liquid coating method disclosed in Patent Document 1, first, the spectacle lens base material is rotated. At this time, the spectacle lens rotates with the ...

Claims

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Application Information

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IPC IPC(8): G02B1/10B05C9/04B05C11/08B05D1/40B05D7/00G02C7/02
CPCB05C9/04B05C11/08B05D1/002B29D11/00884B05C5/0208G02B1/14B05B1/14B05B13/0228B05D1/005B05D1/02G02C7/02G02C2202/16
Inventor 中村宪治岛田明
Owner HOYA CORP
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