JPS6446242A - Optical pickup - Google Patents
Optical pickupInfo
- Publication number
- JPS6446242A JPS6446242A JP62201465A JP20146587A JPS6446242A JP S6446242 A JPS6446242 A JP S6446242A JP 62201465 A JP62201465 A JP 62201465A JP 20146587 A JP20146587 A JP 20146587A JP S6446242 A JPS6446242 A JP S6446242A
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- laser
- light
- optical pickup
- photo detector
- 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.)
- Pending
Links
Abstract
PURPOSE:To simplify an optical assembly by using a surface emission laser as a light source, forming the laser and a photo detector on the same substrate, and fitting a transparent body where a lens is formed. CONSTITUTION:A semiconductor laser 11 is formed on a substrate 10, and a photo detector 12 is formed, to which a current is applied at the time of light incidence, at a difference place on the substrate 10 with the same constitution as the semiconductor laser 11. Light emitted from the so-called surface emission laser, which radiates the light from the surface of the substrate 10, is condensed by lenses 14 and 15, which are formed at one part of a transparent body 13 laminated on the substrate 10, and irradiated to a recording medium 16. On the other hand, reflected light from the recording medium 16 is received by the lenses 14 and 15 formed at the transparent body 13, and can be detected as a signal by the photo detector 12, which is formed at the different place on the substrate 10 from the place where the surface emission laser is formed. Thus, the number of the parts of the titled optical pickup is reduced, points to be adjusted are reduced, the optical pickup can be miniaturized, lightened, and high-speed access is attained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62201465A JPS6446242A (en) | 1987-08-12 | 1987-08-12 | Optical pickup |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62201465A JPS6446242A (en) | 1987-08-12 | 1987-08-12 | Optical pickup |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6446242A true JPS6446242A (en) | 1989-02-20 |
Family
ID=16441537
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62201465A Pending JPS6446242A (en) | 1987-08-12 | 1987-08-12 | Optical pickup |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6446242A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02265036A (en) * | 1989-04-05 | 1990-10-29 | Olympus Optical Co Ltd | Optical head |
JPH07326063A (en) * | 1994-05-31 | 1995-12-12 | Samsung Electron Co Ltd | Optical pickup utilizing vertical-resonator face emission laser diode |
US6272097B1 (en) | 1998-05-19 | 2001-08-07 | Hitachi, Ltd. | Optical head and apparatus for recording and reproducing optical information through the use of the optical head |
-
1987
- 1987-08-12 JP JP62201465A patent/JPS6446242A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02265036A (en) * | 1989-04-05 | 1990-10-29 | Olympus Optical Co Ltd | Optical head |
JPH07326063A (en) * | 1994-05-31 | 1995-12-12 | Samsung Electron Co Ltd | Optical pickup utilizing vertical-resonator face emission laser diode |
US6272097B1 (en) | 1998-05-19 | 2001-08-07 | Hitachi, Ltd. | Optical head and apparatus for recording and reproducing optical information through the use of the optical head |
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