Invention Grant
- Patent Title: Method of producing optical image on chromium or aluminum film with high-energy light beam
- Patent Title (中): 用高能光束在铬或铝膜上制作光学图像的方法
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Application No.: US614855Application Date: 1975-09-19
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Publication No.: US4087281APublication Date: 1978-05-02
- Inventor: Minoru Toda , Susumu Osaka
- Applicant: Minoru Toda , Susumu Osaka
- Applicant Address: NY New York
- Assignee: RCA Corporation
- Current Assignee: RCA Corporation
- Current Assignee Address: NY New York
- Main IPC: C23F1/00
- IPC: C23F1/00 ; B41M5/24 ; G03C1/705 ; G03F7/26 ; G03C5/00
Abstract:
A latent image is produced on a metallic film having at least one layer of chromium or aluminum by exposing the film to a light pattern. The intensity of the light from the light pattern must be below the threshold for evaporation of the metallic film. The latent image is developed by dipping the metallic film into an etchant.
Public/Granted literature
- US5745056A Single-hand input keyboard Public/Granted day:1998-04-28
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