JPS51144650A - Photo-divider - Google Patents
Photo-dividerInfo
- Publication number
- JPS51144650A JPS51144650A JP50068781A JP6878175A JPS51144650A JP S51144650 A JPS51144650 A JP S51144650A JP 50068781 A JP50068781 A JP 50068781A JP 6878175 A JP6878175 A JP 6878175A JP S51144650 A JPS51144650 A JP S51144650A
- Authority
- JP
- Japan
- Prior art keywords
- photo
- divider
- emission surface
- light
- focusing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Optical Elements Other Than Lenses (AREA)
- Exposure Control For Cameras (AREA)
Abstract
PURPOSE: Using a diffraction grating that forms volume-shaped hologram about a photo-divider provides self-focusing characteristics to the diffraction light and reflects the diffraction light on an emission surface and the opposite surface, focusing the light near the emission surface.
COPYRIGHT: (C)1976,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50068781A JPS51144650A (en) | 1975-06-06 | 1975-06-06 | Photo-divider |
US05/691,628 US4103153A (en) | 1975-06-06 | 1976-06-01 | Device for measuring light incident on an image forming optical system |
US05/869,447 US4178084A (en) | 1975-06-06 | 1978-01-16 | Device for measuring light incident on an image forming optical system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50068781A JPS51144650A (en) | 1975-06-06 | 1975-06-06 | Photo-divider |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS51144650A true JPS51144650A (en) | 1976-12-11 |
Family
ID=13383607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50068781A Pending JPS51144650A (en) | 1975-06-06 | 1975-06-06 | Photo-divider |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS51144650A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108710205A (en) * | 2018-05-16 | 2018-10-26 | 电子科技大学 | A kind of optical scanner holography self-focusing method based on edge gray difference function |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3464337A (en) * | 1966-04-15 | 1969-09-02 | Pentacon Dresden Veb | Mirror reflex camera with internal photoelectric light meter |
JPS4982355A (en) * | 1972-12-11 | 1974-08-08 |
-
1975
- 1975-06-06 JP JP50068781A patent/JPS51144650A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3464337A (en) * | 1966-04-15 | 1969-09-02 | Pentacon Dresden Veb | Mirror reflex camera with internal photoelectric light meter |
JPS4982355A (en) * | 1972-12-11 | 1974-08-08 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108710205A (en) * | 2018-05-16 | 2018-10-26 | 电子科技大学 | A kind of optical scanner holography self-focusing method based on edge gray difference function |
CN108710205B (en) * | 2018-05-16 | 2019-06-21 | 电子科技大学 | A kind of optical scanner holography self-focusing method based on edge gray difference function |
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