JPS6321168B2 - - Google Patents
Info
- Publication number
- JPS6321168B2 JPS6321168B2 JP53111346A JP11134678A JPS6321168B2 JP S6321168 B2 JPS6321168 B2 JP S6321168B2 JP 53111346 A JP53111346 A JP 53111346A JP 11134678 A JP11134678 A JP 11134678A JP S6321168 B2 JPS6321168 B2 JP S6321168B2
- Authority
- JP
- Japan
- Prior art keywords
- hologram
- light
- photodetector
- holograms
- zero
- 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
Links
- 230000003287 optical effect Effects 0.000 claims description 9
- 230000002452 interceptive effect Effects 0.000 claims description 2
- 230000033458 reproduction Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000011295 pitch Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
Landscapes
- Diffracting Gratings Or Hologram Optical Elements (AREA)
- Holo Graphy (AREA)
- Facsimile Scanning Arrangements (AREA)
- Mechanical Optical Scanning Systems (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11134678A JPS5538530A (en) | 1978-09-12 | 1978-09-12 | Light scanning device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11134678A JPS5538530A (en) | 1978-09-12 | 1978-09-12 | Light scanning device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5538530A JPS5538530A (en) | 1980-03-18 |
JPS6321168B2 true JPS6321168B2 (fr) | 1988-05-06 |
Family
ID=14558855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11134678A Granted JPS5538530A (en) | 1978-09-12 | 1978-09-12 | Light scanning device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5538530A (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4378142A (en) * | 1979-06-21 | 1983-03-29 | Nippon Electric Co., Ltd | Hologram made by using a plurality of spherical waves and a device for laser beam scanning by using the hologram |
JPS6039273A (ja) * | 1983-08-12 | 1985-03-01 | Fujitsu Ltd | 光学読取装置 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5282435A (en) * | 1975-12-29 | 1977-07-09 | Fujitsu Ltd | Safety device in optical scanner |
-
1978
- 1978-09-12 JP JP11134678A patent/JPS5538530A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5282435A (en) * | 1975-12-29 | 1977-07-09 | Fujitsu Ltd | Safety device in optical scanner |
Also Published As
Publication number | Publication date |
---|---|
JPS5538530A (en) | 1980-03-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5132952A (en) | System for reproducing pulse time modulated wave forms stored along a diffractive track | |
US3842197A (en) | Flexible holographic record disc reproducing system | |
US4030835A (en) | Defect detection system | |
US4197011A (en) | Defect detection and plotting system | |
US4256362A (en) | Phase-insensitive hologram readout technique | |
US4149269A (en) | Holographic reading apparatus with an area identification and density reference scan | |
US4025731A (en) | Optical record, and associated recording and reading-out devices | |
US3860766A (en) | Optical signal reproducing apparatus | |
US4352564A (en) | Missing order defect detection apparatus | |
US3919562A (en) | Slit detector for optical detector system | |
JPS6321168B2 (fr) | ||
US4010317A (en) | Apparatus for reading a record carrier in which information, for example video and/or audio information, is recorded in at least one track | |
US5182743A (en) | Optical disk arrangement with diffractive tracks allowing positional control | |
US3885143A (en) | Optical information retrieval apparatus | |
JPS6346496B2 (fr) | ||
EP0523334B1 (fr) | Milieu d'enregistrement d'information optique et dispositif pour la reproduction d'information de ce milieu | |
JP3186841B2 (ja) | 光情報要素の読取りシステム | |
US4571020A (en) | Hologram light deflector | |
US3904835A (en) | Reconstruction method of an optically recorded signal | |
JP3397880B2 (ja) | 光ピックアップ装置 | |
JP3306135B2 (ja) | ホログラム情報の読み取り方法 | |
JPS6212484B2 (fr) | ||
JP3355722B2 (ja) | 回折格子パターンの作成方法 | |
JPS63303317A (ja) | レ−ザ光走査装置 | |
KR101336248B1 (ko) | 홀로그래픽 저장 매체에의 데이터 기록 장치 및 방법 |