Patent JPS5332048A successfully refreshed from Google Patents.
JPS5332048A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Information mark display device
Assignee: Canon Inc
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Filing: 1976-09-07
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Granted: —
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Expires: 1996-09-07
Abstract
Abstract PURPOSE: Production of uneven density of impage plane is obviated even if a hologram is disposed within image plane luminous flux by setting the Bragg angle width of a volume hologram smaller than the spreading angle of the image plane luminous flux. COPYRIGHT: (C)1978,JPO&Japio
Inventors
- 👤 Kazuya Matsumoto
- 👤 Susumu Matsumura
- 👤 Tetsushi Nose
- 👤 Yoichi Okuno
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-09 21:36
CPC Classifications
G; G03; G03H; G03H1/00; G03H1/22; G03H1/02; G03H1/024; G03H1/0248; G03H1/04; G03H1/0402; G03H1/0406; G03H1/0408; G03H1/2249; G03H1/26; G03H1/2645; G03H1/265; G03H1/2202; G03H1/2205; G03H2001/221; G03H2001/2223; G03H2001/2231; G03H2001/2234; G03H2001/2284; G03H2001/2605; G03H2001/261; G03H2001/2615; G03H2210/00; G03H2210/20; G03H2222/00; G03H2222/34; G03H2227/00; G03H2227/02; G03H2240/00; G03H2240/10; G03H2240/11
Claims Analysis
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