EP0061918A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method of manufacturing spectacles
Assignee: Hoya Lens Corp
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Filing: 1982-03-29
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Granted: —
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Expires: 2002-03-29
Abstract
Abstract Method of manufacturing spectacles having lenses which can be fitted in a frame suited for a user in accordance with an automatic design program prepared in consideration of recipe prescribed for the user. The recipe is first incorporated in an automatic lens program. Next, information of a selected frame is obtained from a proper lens model (1-4, 2-4) and processed by a computer (3-12) to thereby design an optimum lens. Subsequently, a raw lens material is subjected to cutting, abrading and the like processing in accordance with the results obtained from the processing by the computer (3-12). The finished lenses are then fitted in the frame to thereby fabricate the spectacles fitted with the lenses having a minimum edge thickness and held by the desired frame.
Inventors
- 👤 Hayao Akaba
- 👤 Toyoji Wada
- 👤 Tadao Ii
- 👤 Hideo Namatame
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 14:56
CPC Classifications
G; G02; G02C; G02C13/00; G02C13/003; B; B24; B24B; B24B9/00; B24B9/02; B24B9/06; B24B9/08; B24B9/14; B24B9/148
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
111 words
A method of manufacturing a lens for spectacles on the basis of an automatic designing program prepared in accordance with a recipe; comprising the steps of: preparing an automatic lens design program in accordance with a prescription for a user; obtaining frame information of a desired frame in which finished lenses are to be fitted on the basis of a lens model (3-1); deriving optimum lens design data through processing of said frame information by a computer (3-12) in accordance with said lens design program; and preparing and finishing a lens by cutting, abrading or the like processing of a lens material (1-3) in accordance with said optimum lens design data.
Claim 2
Independent Claim
111 words
A method of manufacturing a lens for spectacles on the basis of an automatic designing program prepared in accordance with a recipe; comprising the steps of: preparing an automatic lens design program in accordance with a prescription for a user; obtaining frame information of a desired frame in which finished lenses are to be fitted on the basis of a lens model (3-1); deriving optimum lens design data through processing of said frame information by a computer (3-12) in accordance with said lens design program; and preparing and finishing a lens by cutting, abrading or the like processing of a lens material (1-3) in accordance with said optimum lens design data.
Claim 3
Independent Claim
108 words
A method of manufacturing lenses to be fitted in a frame of spectacles on the basis of an automatic design program prepared in accordance with a recipe prescribed for a user, comprising the steps of: preparing first the automatic design program in accordance with the recipe prescribed for the user; obtaining information of a lens frame from a lens model (3-1); processing said frame information in accordance with said automatic lens design program by a computer (3-12) to thereby make available optimum lens design information; and processing a lens in accordance with said optimum lens design information by cutting and abrading a raw material (1-3) of the lens.
Claim 4
Independent Claim
108 words
A method of manufacturing lenses to be fitted in a frame of spectacles on the basis of an automatic design program prepared in accordance with a recipe prescribed for a user, comprising the steps of: preparing first the automatic design program in accordance with the recipe prescribed for the user; obtaining information of a lens frame from a lens model (3-1); processing said frame information in accordance with said automatic lens design program by a computer (3-12) to thereby make available optimum lens design information; and processing a lens in accordance with said optimum lens design information by cutting and abrading a raw material (1-3) of the lens.
Claim 5
Independent Claim
102 words
A method of manufacturing spectacles on the basis of an automatic design program prepared in accordance with a recipe prescribed for a user, comprising the steps of preparing first an automatic lens program in accordance with recipe prescribed for the user; obtaining desired information of a frame in which the lenses are fitted with the aid of a lens model (3-1); designing optimum lens by processing said frame information in accordance with said program by a computer (3-12), processing a lens material in accordance with data available from the output of said computer (3-12); and fitting the finished lenses in the frame.
Claim 6
Independent Claim
102 words
A method of manufacturing spectacles on the basis of an automatic design program prepared in accordance with a recipe prescribed for a user, comprising the steps of preparing first an automatic lens program in accordance with recipe prescribed for the user; obtaining desired information of a frame in which the lenses are fitted with the aid of a lens model (3-1); designing optimum lens by processing said frame information in accordance with said program by a computer (3-12), processing a lens material in accordance with data available from the output of said computer (3-12); and fitting the finished lenses in the frame.
References Cited (Backward Citations)
DE1132745B
Cited
US3598977A
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FR2368772A1
Cited
FR2375617A1
Cited
DE2747828A1
Cited
US4228685A
Cited
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