JPS5319805A - Automatic focusing optical device - Google Patents
Automatic focusing optical deviceInfo
- Publication number
- JPS5319805A JPS5319805A JP9399976A JP9399976A JPS5319805A JP S5319805 A JPS5319805 A JP S5319805A JP 9399976 A JP9399976 A JP 9399976A JP 9399976 A JP9399976 A JP 9399976A JP S5319805 A JPS5319805 A JP S5319805A
- Authority
- JP
- Japan
- Prior art keywords
- optical device
- automatic focusing
- focusing optical
- adaptation
- control signal
- 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)
Abstract
PURPOSE: Making the detection range of a focus deviation control signal to a value sufficient for adaptation to video discs is made possible by determining the set position of a cylindrical lens at a specified value.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP51093999A JPS608534B2 (en) | 1976-08-09 | 1976-08-09 | automatic focusing optics |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP51093999A JPS608534B2 (en) | 1976-08-09 | 1976-08-09 | automatic focusing optics |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5319805A true JPS5319805A (en) | 1978-02-23 |
JPS608534B2 JPS608534B2 (en) | 1985-03-04 |
Family
ID=14098092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP51093999A Expired JPS608534B2 (en) | 1976-08-09 | 1976-08-09 | automatic focusing optics |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS608534B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5459108A (en) * | 1977-10-20 | 1979-05-12 | Tdk Corp | Magnetic recording medium |
JPS55927A (en) * | 1978-06-16 | 1980-01-07 | Pioneer Video Corp | Focus servo unit of optical information reader |
JPS55926A (en) * | 1978-06-16 | 1980-01-07 | Pioneer Video Corp | Focus servo unit of optical information reader |
JPS5845632A (en) * | 1981-06-30 | 1983-03-16 | ストレ−ジ・テクノロジ−・コ−ポレ−シヨン | Apparatus for reading information memorized into radiation beam reflection record star 02 like track pattern |
JPS6334390A (en) * | 1986-07-25 | 1988-02-15 | 日本ピラ−工業株式会社 | Pipe joint |
-
1976
- 1976-08-09 JP JP51093999A patent/JPS608534B2/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5459108A (en) * | 1977-10-20 | 1979-05-12 | Tdk Corp | Magnetic recording medium |
JPS571047B2 (en) * | 1977-10-20 | 1982-01-09 | ||
JPS55927A (en) * | 1978-06-16 | 1980-01-07 | Pioneer Video Corp | Focus servo unit of optical information reader |
JPS55926A (en) * | 1978-06-16 | 1980-01-07 | Pioneer Video Corp | Focus servo unit of optical information reader |
JPS6040094B2 (en) * | 1978-06-16 | 1985-09-09 | パイオニアビデオ株式会社 | Focus servo device for optical information reading device |
JPS6120055B2 (en) * | 1978-06-16 | 1986-05-20 | Paionia Bideo Kk | |
JPS5845632A (en) * | 1981-06-30 | 1983-03-16 | ストレ−ジ・テクノロジ−・コ−ポレ−シヨン | Apparatus for reading information memorized into radiation beam reflection record star 02 like track pattern |
JPS6334390A (en) * | 1986-07-25 | 1988-02-15 | 日本ピラ−工業株式会社 | Pipe joint |
Also Published As
Publication number | Publication date |
---|---|
JPS608534B2 (en) | 1985-03-04 |
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