JPS5250703A - Optical reading device for recording materials - Google Patents
Optical reading device for recording materialsInfo
- Publication number
- JPS5250703A JPS5250703A JP12723675A JP12723675A JPS5250703A JP S5250703 A JPS5250703 A JP S5250703A JP 12723675 A JP12723675 A JP 12723675A JP 12723675 A JP12723675 A JP 12723675A JP S5250703 A JPS5250703 A JP S5250703A
- Authority
- JP
- Japan
- Prior art keywords
- reading device
- recording materials
- optical reading
- variation
- light
- 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.)
- Granted
Links
Abstract
PURPOSE: An auxiliary lens is provided between an objective lens and rotary mirror, and its focal plane is moved, whereby the variation of the light beam position on a light detector plane and the variation in light distribution are prevented.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12723675A JPS5250703A (en) | 1975-10-21 | 1975-10-21 | Optical reading device for recording materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12723675A JPS5250703A (en) | 1975-10-21 | 1975-10-21 | Optical reading device for recording materials |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5250703A true JPS5250703A (en) | 1977-04-23 |
JPS5756137B2 JPS5756137B2 (en) | 1982-11-27 |
Family
ID=14955072
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12723675A Granted JPS5250703A (en) | 1975-10-21 | 1975-10-21 | Optical reading device for recording materials |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5250703A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53123104A (en) * | 1977-04-04 | 1978-10-27 | Teac Corp | Optical reproducer |
JPS5619490U (en) * | 1979-07-24 | 1981-02-20 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62150343U (en) * | 1986-03-17 | 1987-09-24 |
-
1975
- 1975-10-21 JP JP12723675A patent/JPS5250703A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53123104A (en) * | 1977-04-04 | 1978-10-27 | Teac Corp | Optical reproducer |
JPS5619490U (en) * | 1979-07-24 | 1981-02-20 | ||
JPS591910Y2 (en) * | 1979-07-24 | 1984-01-19 | 石川島播磨重工業株式会社 | Mooring line separation device |
Also Published As
Publication number | Publication date |
---|---|
JPS5756137B2 (en) | 1982-11-27 |
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