Invention Grant
US07813059B2 Optical lens base with protective film and process for producing optical lens base
失效
具有保护膜的光学透镜底座和用于制造光学透镜基座的工艺
- Patent Title: Optical lens base with protective film and process for producing optical lens base
- Patent Title (中): 具有保护膜的光学透镜底座和用于制造光学透镜基座的工艺
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Application No.: US12642618Application Date: 2009-12-18
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Publication No.: US07813059B2Publication Date: 2010-10-12
- Inventor: Osamu Asai , Yoshimitsu Gomi , Hatsuyoshi Nakazawa , Manabu Tsurumi
- Applicant: Osamu Asai , Yoshimitsu Gomi , Hatsuyoshi Nakazawa , Manabu Tsurumi
- Applicant Address: JP Tokyo
- Assignee: Hoya Corporation
- Current Assignee: Hoya Corporation
- Current Assignee Address: JP Tokyo
- Agency: Blakely, Sokoloff, Taylor & Zafman
- Main IPC: G02B9/00
- IPC: G02B9/00 ; G02B11/00 ; G02B3/00 ; G02C7/02
Abstract:
A protective film (10) is eccentrically adhered to a concave-side transfer surface (3b) of a first mold (3) which is used in a plastic lens forming mold, and part (10a) of the peripheral portion of the protective film is projected laterally from the mold (3). The protective film (10) comprises a film layer with an outer diameter smaller than that of the first mold (3), and an adhesive layer with a relatively low adhesive strength which is formed on one surface of the film layer.
Public/Granted literature
- US20100097568A1 OPTICAL LENS BASE WITH PROTECTIVE FILM AND PROCESS FOR PRODUCING OPTICAL LENS BASE Public/Granted day:2010-04-22
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