发明授权
- 专利标题: Optical system for use in a photographic printer
- 专利标题(中): 用于照相打印机的光学系统
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申请号: US703985申请日: 1996-08-28
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公开(公告)号: US5864390A公开(公告)日: 1999-01-26
- 发明人: Bruce K. Johnson , Philip D. Chapnik
- 申请人: Bruce K. Johnson , Philip D. Chapnik
- 申请人地址: MA Cambridge
- 专利权人: Polaroid Corporation
- 当前专利权人: Polaroid Corporation
- 当前专利权人地址: MA Cambridge
- 主分类号: B41J2/44
- IPC分类号: B41J2/44 ; G02B17/08 ; G02B26/10 ; G03B27/50 ; H04N1/024 ; H04N1/028 ; G03B27/54 ; G02F1/13
摘要:
An optical system is disclosed wherein an arcuate mirror is used to redirect light in a compact optical printing system in which a cylindrical lens is used to converge light over a predetermined distance so that light transmission through air is enabled.
公开/授权文献
- US5298875A Controllable levitation device 公开/授权日:1994-03-29
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