Invention Grant
US2642488A Schmidt television projector having meniscus to correct for antihalation lens
失效
施密特电视投影仪具有弯液面以校正防晕透镜
- Patent Title: Schmidt television projector having meniscus to correct for antihalation lens
- Patent Title (中): 施密特电视投影仪具有弯液面以校正防晕透镜
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Application No.: US6887849Application Date: 1949-01-03
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Publication No.: US2642488APublication Date: 1953-06-16
- Inventor: EPSTEIN DAVID W
- Applicant: RCA CORP
- Assignee: RCA Corp
- Current Assignee: RCA Corp
- Priority: US6887849 1949-01-03
- Main IPC: G02B17/08
- IPC: G02B17/08 ; H04N5/74
Information query
IPC分类:
G | 物理 |
G02 | 光学 |
G02B | 光学元件、系统或仪器 |
G02B17/00 | 有或无折射元件的具有反射面的系统 |
G02B17/08 | .折反射系统 |