JPH0323896B2 - - Google Patents
Info
- Publication number
- JPH0323896B2 JPH0323896B2 JP54143971A JP14397179A JPH0323896B2 JP H0323896 B2 JPH0323896 B2 JP H0323896B2 JP 54143971 A JP54143971 A JP 54143971A JP 14397179 A JP14397179 A JP 14397179A JP H0323896 B2 JPH0323896 B2 JP H0323896B2
- Authority
- JP
- Japan
- Prior art keywords
- prism
- image
- section
- images
- slopes
- 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.)
- Expired - Lifetime
Links
- 238000005259 measurement Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000011514 reflex Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000001747 pupil Anatomy 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005323 electroforming Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
Landscapes
- Viewfinders (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14397179A JPS5667822A (en) | 1979-11-07 | 1979-11-07 | Focal diaphragm |
GB8035647A GB2065919B (en) | 1979-11-07 | 1980-11-06 | Focussing screen |
DE19803041969 DE3041969A1 (de) | 1979-11-07 | 1980-11-06 | Einstellmattscheibe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14397179A JPS5667822A (en) | 1979-11-07 | 1979-11-07 | Focal diaphragm |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5667822A JPS5667822A (en) | 1981-06-08 |
JPH0323896B2 true JPH0323896B2 (zh) | 1991-03-29 |
Family
ID=15351311
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14397179A Granted JPS5667822A (en) | 1979-11-07 | 1979-11-07 | Focal diaphragm |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5667822A (zh) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5816220A (ja) * | 1981-07-22 | 1983-01-29 | Olympus Optical Co Ltd | 焦点板 |
JPS58117511A (ja) * | 1981-12-30 | 1983-07-13 | Fujitsu Ltd | 回折格子 |
JP2005196930A (ja) * | 2003-12-12 | 2005-07-21 | Konica Minolta Opto Inc | 回折光学素子及び光ピックアップ装置 |
JP4587172B2 (ja) * | 2005-04-01 | 2010-11-24 | キヤノン株式会社 | 回折光学素子、回折光学素子の製造方法、及び回折光学素子成形用金型の製造方法 |
JP6909438B2 (ja) * | 2017-09-08 | 2021-07-28 | 大日本印刷株式会社 | 光変調素子および情報記録媒体 |
JP7263702B2 (ja) * | 2018-06-14 | 2023-04-25 | 大日本印刷株式会社 | 光変調素子および情報記録媒体 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5216226A (en) * | 1975-07-28 | 1977-02-07 | Canon Inc | Focusing device |
-
1979
- 1979-11-07 JP JP14397179A patent/JPS5667822A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5216226A (en) * | 1975-07-28 | 1977-02-07 | Canon Inc | Focusing device |
Also Published As
Publication number | Publication date |
---|---|
JPS5667822A (en) | 1981-06-08 |
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