Workpiece with optical lens blank, method for the production thereof, and method for the machining thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B24B-013/00
G02C-007/02
B24B-013/005
출원번호
US-0376991
(2016-12-13)
등록번호
US-10061142
(2018-08-28)
우선권정보
DE-10 2015 121 682 (2015-12-14)
발명자
/ 주소
Mandler, Roland
출원인 / 주소
OptoTech Optikmaschinen GmbH
대리인 / 주소
TraskBritt
인용정보
피인용 횟수 :
0인용 특허 :
11
초록▼
A workpiece has an optical lens blank with a first lens face and a second lens face, which are arranged opposite each other and are delimited at a lens circumference, and a cover film on the first lens face, wherein a first recess in the lens blank is formed, which is open in the direction of the fi
A workpiece has an optical lens blank with a first lens face and a second lens face, which are arranged opposite each other and are delimited at a lens circumference, and a cover film on the first lens face, wherein a first recess in the lens blank is formed, which is open in the direction of the first lens face and which is at least partially spanned in the direction of the first lens face by the cover film. A method for the production thereof and a method for the machining thereof. The machining method is distinguished, in particular, by the cover film being gripped for the purpose of pulling it off in the area that spans the first recess.
대표청구항▼
1. A workpiece having: an optical lens blank with a first lens face and a second lens face, which are arranged opposite each other and are delimited at a lens circumference; anda cover film on the first lens face,wherein a first recess in the lens blank is formed: which is open in the direction of t
1. A workpiece having: an optical lens blank with a first lens face and a second lens face, which are arranged opposite each other and are delimited at a lens circumference; anda cover film on the first lens face,wherein a first recess in the lens blank is formed: which is open in the direction of the first lens face, andwhich is at least partially spanned in the direction of the first lens face by the cover film. 2. The workpiece according to claim 1, wherein the first recess is open in the direction of the lens circumference. 3. The workpiece according to claim 2, wherein the first recess is open over a corner, which is formed by the first lens face and by the lens circumference. 4. The workpiece according to claim 1, wherein the first recess is open in the direction of the second lens face. 5. The workpiece according to claim 1, wherein the first recess is a groove. 6. The workpiece according to claim 1, wherein at least a second recess is also open in the direction of the first lens face, and wherein the at least a second recess is at least partially spanned in the direction of the first lens face by the cover film. 7. The workpiece according to claim 6, wherein the cover film, except where it spans the first recess and at least a second recess, lies completely on the first lens face. 8. The workpiece according to claim 6, wherein the cover film, except where it spans the first recess and at least a second recess, is connected completely to the first lens face. 9. The workpiece according to claim 1, wherein the optical lens blank and the cover film are blocked on a holding piece. 10. The workpiece according to claim 6, further comprising at least a third recess open in the direction of the first lens face, wherein the at least a third recess is at least partially spanned in the direction of the first lens face by the cover film. 11. The workpiece according to claim 10, wherein the first recess, at least a second recess, and at least a third recess are uniformly distributed over the lens circumference. 12. The workpiece according to claim 6, wherein the at least a second recess is open in the direction of the second lens face. 13. The workpiece according to claim 1, wherein the first recess has a width and a depth, wherein the width is greater than the depth. 14. A method for production of a workpiece, comprising the following steps: providing an optical lens blank with a first lens face and a second lens face, which are arranged opposite each other and are delimited at a lens circumference;machining the first lens face by cutting, grinding, polishing and/or surface treatment and cutting a first recess in the lens blank, which first recess is open in the direction of the first lens face; andapplying a cover film to the first lens face, with which the first recess is at least partially spanned in the direction of the first lens face. 15. The method according to claim 14, further comprising: machining the second lens face by cutting, grinding, polishing and/or surface treatment; andthen gripping the cover film in a gripping area, in which the cover film spans the first recess, and pulling the cover film off from the first lens face by pulling at the gripped gripping area. 16. The method according to claim 15, wherein the workpiece is secured in a machining tool, and the cover film is gripped at the gripping area and pulled off using an automated gripper. 17. The method according to claim 14, wherein applying the cover film to the first lens face comprises applying a self-adhesive cover film to the first lens face. 18. The method according to claim 14, wherein applying the cover film to the first lens face comprises laying the cover film completely on the first lens face except where the cover film spans the first recess. 19. The method according to claim 14, further comprising holding the optical lens blank with a holding piece. 20. The method according to claim 19, further comprising completely separating the optical lens blank from the holding piece with the cover film.
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이 특허에 인용된 특허 (11)
Ko John H. ; Weldon James A., Compliant lens block and tape.
Crumbach Richard (Aachen DEX) Gillner Manfred (Aachen DEX) Schilde Heinz J. (Wuerselen DEX) Tiedemann Helmut (Baesweiler DEX), Method for covering a lens blank with a protective plastic film.
Asai, Osamu; Gomi, Yoshimitsu; Nakazawa, Hatsuyoshi; Tsurumi, Manabu, Optical lens base with protective film and process for producing optical lens base.
Benjamin Sharon R. ; Govek Michael ; Hyde Patrick D. ; Ko John H. ; Martin Philip G. ; Oxman Joel D. ; Parish ; Jr. William L. ; Sedlock Carole ; Ubel F. Andrew ; Williams Todd R., Polycaprolactone lens blocking material.
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