TW198115B - Optical pickup head with stop - Google Patents
Optical pickup head with stopInfo
- Publication number
- TW198115B TW198115B TW80104462A TW80104462A TW198115B TW 198115 B TW198115 B TW 198115B TW 80104462 A TW80104462 A TW 80104462A TW 80104462 A TW80104462 A TW 80104462A TW 198115 B TW198115 B TW 198115B
- Authority
- TW
- Taiwan
- Prior art keywords
- optical disk
- stop
- return light
- pickup head
- optical pickup
- Prior art date
Links
Landscapes
- Optical Head (AREA)
Abstract
An optical pickup head with stop, for guiding a laser beam from laser source and projecting on an optical disk, projecting the reflected return light beam from the optical disk at least including the tracking signal component and the focus signal component beams to a first detection means; the optical pickup head comprising: a plurality of beam splitter guiding laser beam source projected on an optical disk and guiding the reflected return light beam from the optical disk; a plurality of focusing lens project the guided return light beam of the plural beam spitter; a stop setted on the return light path, comprising a passing portion through which light beams can pass, and a non-passing portion through which light beams cannot pass, enabling passing portion project to the first detection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW80104462A TW198115B (en) | 1991-06-07 | 1991-06-07 | Optical pickup head with stop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW80104462A TW198115B (en) | 1991-06-07 | 1991-06-07 | Optical pickup head with stop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW198115B true TW198115B (en) | 1993-01-11 |
Family
ID=51356440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW80104462A TW198115B (en) | 1991-06-07 | 1991-06-07 | Optical pickup head with stop |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TW198115B (en) |
-
1991
- 1991-06-07 TW TW80104462A patent/TW198115B/en not_active IP Right Cessation
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS57130240A (en) | Optical information recording and reproducing device and information recording medium for it | |
| KR930008764A (en) | Holographic device for optical recording systems | |
| EP0325104A3 (en) | Magneto-optical head with separate optical paths for error and data detection | |
| US4654519A (en) | Optical head | |
| EP0326354A3 (en) | Apparatus for reading information out of an optical recording medium | |
| EP0379363A3 (en) | Optical head device for use in optical disk system | |
| US5598394A (en) | Optical pick-up | |
| JPS5766533A (en) | Optical information reader | |
| US5357102A (en) | Tilted light detection device for preventing undesirable retro-reflection | |
| TW198115B (en) | Optical pickup head with stop | |
| KR960038794A (en) | Optical information reproduction device | |
| JPS56156937A (en) | Optical pickup device | |
| MY125092A (en) | Optical pickup device | |
| JPS57172306A (en) | Focus controller of optical recording system | |
| KR970007871A (en) | Optical pickup device | |
| KR960005480A (en) | Focus error detection device | |
| JPS6413246A (en) | Optical head for magneto-optical storage | |
| KR930008763A (en) | Optical pickup | |
| JP2735137B2 (en) | Optical system of optical information recording / reproducing device | |
| JPS57120242A (en) | Optical information reproducing device | |
| JPS6482337A (en) | Pickup device for optical disk | |
| KR960025412A (en) | Optical pickup for double sided disc | |
| JPS573234A (en) | Optical recorder and reproducer | |
| KR930014338A (en) | Optical Disc Device | |
| KR970007874A (en) | Optical pickup |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Annulment or lapse of patent due to non-payment of fees |