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 Title: |
US5457502:
Lens for eyeglasses in which plurality of lenses formed of curved surface are coupled integrally
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Iida, Yoshiaki; Katano, Japan
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| Assignee: |
Cateye Co., Ltd., Osaka, Japan
other patents from CAT EYE CO., LTD. (92445) (approx. 104)
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| Published / Filed: |
1995-10-10
/ 1993-09-08
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| Application Number: |
US1993000118457
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| IPC Code: |
Advanced:
A61F 9/02;
G02C 1/00;
G02C 7/02;
G02C 7/16;
IPC-7:
G02C 7/02;
G02C 7/10;
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| ECLA Code: |
G02C7/02; A61F9/02;
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| U.S. Class: |
Current:
351/044;
002/447;
351/041;
351/062;
351/159;
D16/313;
Original:
351/044;
351/041;
351/062;
351/159;
002/447;
D16/313;
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| Field of Search: |
002/431,432,439,447
D16/100,101,102,111,112,107,115,116,117,120,121,122,310,312,313,314,317,325,326,340
351/041,44,45,54,55,62,84,85,154,159,163,164,165,168,172
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| Priority Number: |
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| Abstract: |
Upper lens formed of a portion of a sphere having radius R2 and lower lens formed of a portion of a sphere having radius R1 are manufactured integrally by molding for forming the lens of eyeglasses Radii R1 and R2 are slightly different from each other, so that the front view comes into eyes through lower lens when the user is in a normal posture, while the front view comes into eyes through upper lens when the user bends forward.
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| Attorney, Agent or Firm: |
Banner & Allegretti, Ltd. ;
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| Primary / Asst. Examiners: |
Sikes, William L.; Parsons, David R.
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| Maintenance Status: |
E2 Expired Check current status
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Designated Country: |
DE FR GB IT
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| Family: |
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First Claim:
Show all 5 claims |
What is claimed is:
1. A lens for eyeglasses for use in sports that is integrally formed and has a substantially constant thickness, comprising a first lens formed as one part of said lens and including a first curved surface, a second lens formed as another part of said lens and including a second curved surface, each curved surface having a radius extending from a center point, the center points of said first and second curved surfaces being located on the same side relative to a surface defined by the first and second lenses, each curved surface being a portion of a sphere wherein the radius defining said first curved surface is smaller than the radius defining said second curved surface.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 13 U.S. patent(s) that reference this one
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