JPS6161450B2 - - Google Patents
Info
- Publication number
- JPS6161450B2 JPS6161450B2 JP54075311A JP7531179A JPS6161450B2 JP S6161450 B2 JPS6161450 B2 JP S6161450B2 JP 54075311 A JP54075311 A JP 54075311A JP 7531179 A JP7531179 A JP 7531179A JP S6161450 B2 JPS6161450 B2 JP S6161450B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- optical
- recording medium
- photodetector
- optical recording
- 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 100
- 239000004065 semiconductor Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 201000009310 astigmatism Diseases 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000010408 film Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- -1 silver halide Chemical class 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
- Automatic Focus Adjustment (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7531179A JPS5639A (en) | 1979-06-14 | 1979-06-14 | Optical recording and reproducing unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7531179A JPS5639A (en) | 1979-06-14 | 1979-06-14 | Optical recording and reproducing unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5639A JPS5639A (en) | 1981-01-06 |
JPS6161450B2 true JPS6161450B2 (ko) | 1986-12-25 |
Family
ID=13572573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7531179A Granted JPS5639A (en) | 1979-06-14 | 1979-06-14 | Optical recording and reproducing unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5639A (ko) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07118082B2 (ja) * | 1987-10-05 | 1995-12-18 | キヤノン株式会社 | 光ヘツド装置 |
JPH0636793Y2 (ja) * | 1987-10-26 | 1994-09-28 | 株式会社モンベル | 寝 袋 |
FR2635334B1 (fr) * | 1988-08-10 | 1990-11-09 | Rhone Poulenc Chimie | Procede de production d'acide lactique par fermentation |
-
1979
- 1979-06-14 JP JP7531179A patent/JPS5639A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5639A (en) | 1981-01-06 |
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