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Surface cleaning and modifying method and surface cleaning and modifying apparatus

a technology of surface cleaning and modifying method, applied in the direction of cleaning using liquids, cleaning using abrasive surfaces conditioning devices, spectales/goggles, etc., can solve the problems of lowering yield, easy scratching, and further increasing connection tightness

Inactive Publication Date: 2005-07-07
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0010] The present invention has been developed to solve the above-described problem. It is an object of the invention to provide a surface cleaning and modifying method and surface cleaning and modifying apparatus capable of polishing and cleaning a plastic optical component with abrasive using an elastic abrasive body without leaving dirt or deep scratches on a surface of the plastic optical component.

Problems solved by technology

A drawback to a plastic optical component is that it is easily scratched due to its softness.
When cleaning in the cleaning step is insufficient, the appearance and durability of the surface of the plastic optical component are adversely affected, resulting in lowered yields.
Additionally, the connection tightness is further increased due to activation of the surface caused by polishing and an anchor effect caused by minute polishing scratches.
However, in the above-described scrub cleaning method, dirt or contaminant sometimes remains on the elastic abrasive body after cleaning the plastic optical component.
If the next plastic optical component is cleaned with the elastic abrasive body to which dirt or contaminant adheres, the dirt or contaminant may be transferred to the surface of the plastic optical component or may scratch the surface deeply.
Thus, the dirt, contaminant and deep scratches existing on the surface of the plastic optical component have been the cause for lowering yields of the hard-coating formation treatment.

Method used

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  • Surface cleaning and modifying method and surface cleaning and modifying apparatus
  • Surface cleaning and modifying method and surface cleaning and modifying apparatus

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Experimental program
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first embodiment

[0050]FIG. 2 illustrates arrangements of lens cleaning equipment in a FIG. 2(a) shows a condition during scrub cleaning, while FIG. 2(b) shows a condition during self-cleaning. Lens cleaning equipment 100 includes surface cleaning and modifying apparatus 200 for scrub-cleaning one side of a plastic lens 1 with abrasive, water cleaning apparatus 300 for water-cleaning the side of the plastic lens polished by the surface cleaning and modifying apparatus 200 to wash off the abrasive and the like, and a drier 400 for drying the side of the plastic lens which is wet after cleaning. The surface cleaning and modifying apparatus 200, the water cleaning apparatus 300 and the drier 400 are disposed in series and their peripheries are veiled by bottom-attached cylindrical covers 201, 301 and 401, respectively. A not-shown carrier for carrying the plastic lens in and out of these apparatus is also provided.

[0051] Since the surface cleaning and modifying apparatus 200 and the water cleaning app...

second embodiment

[0085] When a hard-coating is simultaneously formed on both sides of the plastic lens 1 by the dipping method, it is possible to successively clean the convex surface 2 and the concave surface 3 by using lens cleaning equipment of a second embodiment illustrated in FIGS. 5 and 6.

[0086] Lens cleaning equipment 101 shown in FIG. 5 includes a rotary carrier 500 capable of carrying and processing four plastic lenses 1 simultaneously. The rotary carrier simultaneously carries four plastic lenses 1 which are supplied to A, B, C, D, E and again A in FIG. 5 in this order to process the plastic lenses 1. Four plastic lenses 1 are supplied to a supply and removal section A with the convex surfaces 2 on the upper side. A convex surface cleaning and modifying section B includes four surface cleaning and modifying apparatus so as to simultaneously clean and modify the convex surfaces 2 of the supplied four plastic lenses 1. At a shower-cleaning and turning-over section C, water cleaning is perfo...

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Abstract

A self-cleaning step for cleaning an elastic abrasive body 231 itself by pressing the rotating elastic abrasive body 231 against a pressing member 221 to deform the elastic body 231 while supplying slurry L containing abrasive to the elastic abrasive body 231 so as to clean the elastic abrasive body 231 is added to a scrub cleaning step in which a plastic optical component 1 is rotated and the rotating elastic abrasive body 231 is pressed against a surface of the plastic optical component 1 while supplying slurry L containing abrasive between the surface of the plastic optical component 1 and the elastic abrasive body 231 so as to clean the plastic optical component 1.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application claims priority from Japanese Patent Application JP 2003-384070 filed Nov. 13, 2003, which is incorporated by reference, herein, in its entirety. FIELD OF THE INVENTION [0002] The present invention relates to a surface cleaning and modifying method and surface cleaning and modifying apparatus capable of effectively cleaning a surface of a plastic optical component such as a plastic lens. BACKGROUND OF THE INVENTION [0003] A drawback to a plastic optical component is that it is easily scratched due to its softness. Thus, a hard-coating for providing anti-friction and anti-scratch properties is formed on a surface of the plastic optical component, and an anti-reflection coating is overlaid on the hard-coating, thereby improving the performance and function of the plastic optical component. [0004] Particularly for a plastic spectacle lens, hard-coating formation is a surface treatment essential to improve the hardness of t...

Claims

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Application Information

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IPC IPC(8): G02C13/00B08B1/00B08B1/04B08B3/04B08B7/02B08B7/04B24B13/00B24B53/007
CPCB08B1/007B08B1/04G02C13/006B24B13/00B24B53/007B08B7/02B08B1/32B08B1/52B08B1/54B24B13/005B24B13/02B08B1/50
Inventor HOSODA, TAKASHI
Owner SEIKO EPSON CORP