JPS6452124U - - Google Patents
Info
- Publication number
- JPS6452124U JPS6452124U JP14627687U JP14627687U JPS6452124U JP S6452124 U JPS6452124 U JP S6452124U JP 14627687 U JP14627687 U JP 14627687U JP 14627687 U JP14627687 U JP 14627687U JP S6452124 U JPS6452124 U JP S6452124U
- Authority
- JP
- Japan
- Prior art keywords
- signal light
- recording medium
- pickup device
- information recording
- optical pickup
- 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
- 230000003287 optical effect Effects 0.000 claims 3
- 238000001514 detection method Methods 0.000 claims 1
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Optical Head (AREA)
Description
第１図は、本考案の一実施例の概略側断面図、
第２図及び第３図は、それぞれ従来例の概略側断
面図及び同要部の概略側断面図である。
１ａ，１ｂ……半導体レーザー光源、３ａ，３
ａ′，３ｂ……ビームスプリツター、３ａ１′…
…出射面、５……プリズム、７ａ，７ｂ……受光
素子、１０……デイスク状記録媒体、１２ａ，１
２ｂ……反射光。
FIG. 1 is a schematic side sectional view of an embodiment of the present invention;
FIGS. 2 and 3 are a schematic side sectional view of a conventional example and a schematic side sectional view of the essential parts thereof, respectively. 1a, 1b... semiconductor laser light source, 3a, 3
a', 3b...beam splitter, 3a 1 '...
...Emission surface, 5... Prism, 7a, 7b... Light receiving element, 10... Disc-shaped recording medium, 12a, 1
2b...Reflected light.
Claims (1)
を照射し、同時に複数の異なる情報の記録再生を
行うように構成された光ピツクアツプ装置におい
て、情報記録媒体から反射された信号光を同一の
光路を経て信号検出系に導く為のビームスプリツ
ターの最終出射面を、前記信号光に垂直な面に対
して傾けたことを特徴とする光ピツクアツプ装置
。 In an optical pickup device configured to irradiate an information recording medium with a plurality of light beams with different wavelengths and simultaneously record and reproduce a plurality of different information, the signal light reflected from the information recording medium is routed along the same optical path. An optical pickup device characterized in that a final output surface of a beam splitter for guiding the signal light to a signal detection system is tilted with respect to a plane perpendicular to the signal light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14627687U JPH073461Y2 (en) | 1987-09-24 | 1987-09-24 | Optical pickup device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14627687U JPH073461Y2 (en) | 1987-09-24 | 1987-09-24 | Optical pickup device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6452124U true JPS6452124U (en) | 1989-03-30 |
| JPH073461Y2 JPH073461Y2 (en) | 1995-01-30 |
Family
ID=31415612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14627687U Expired - Lifetime JPH073461Y2 (en) | 1987-09-24 | 1987-09-24 | Optical pickup device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH073461Y2 (en) |
-
1987
- 1987-09-24 JP JP14627687U patent/JPH073461Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH073461Y2 (en) | 1995-01-30 |