JPS5274219A - Device for preventing displacement of focal point of optical information reader - Google Patents
Device for preventing displacement of focal point of optical information readerInfo
- Publication number
- JPS5274219A JPS5274219A JP50151148A JP15114875A JPS5274219A JP S5274219 A JPS5274219 A JP S5274219A JP 50151148 A JP50151148 A JP 50151148A JP 15114875 A JP15114875 A JP 15114875A JP S5274219 A JPS5274219 A JP S5274219A
- Authority
- JP
- Japan
- Prior art keywords
- focal point
- optical information
- information reader
- preventing displacement
- displacement
- 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
Landscapes
- Automatic Focus Adjustment (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50151148A JPS5274219A (en) | 1975-12-17 | 1975-12-17 | Device for preventing displacement of focal point of optical information reader |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50151148A JPS5274219A (en) | 1975-12-17 | 1975-12-17 | Device for preventing displacement of focal point of optical information reader |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5274219A true JPS5274219A (en) | 1977-06-22 |
JPS56858B2 JPS56858B2 (en) | 1981-01-09 |
Family
ID=15512410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50151148A Granted JPS5274219A (en) | 1975-12-17 | 1975-12-17 | Device for preventing displacement of focal point of optical information reader |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5274219A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5143948A (en) * | 1974-08-08 | 1976-04-15 | Philips Nv |
-
1975
- 1975-12-17 JP JP50151148A patent/JPS5274219A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5143948A (en) * | 1974-08-08 | 1976-04-15 | Philips Nv |
Also Published As
Publication number | Publication date |
---|---|
JPS56858B2 (en) | 1981-01-09 |
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