JPS6384728U - - Google Patents
Info
- Publication number
- JPS6384728U JPS6384728U JP17926486U JP17926486U JPS6384728U JP S6384728 U JPS6384728 U JP S6384728U JP 17926486 U JP17926486 U JP 17926486U JP 17926486 U JP17926486 U JP 17926486U JP S6384728 U JPS6384728 U JP S6384728U
- Authority
- JP
- Japan
- Prior art keywords
- beam splitter
- light
- receiving element
- light emitting
- light receiving
- 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
- 230000003287 optical effect Effects 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 238000002834 transmittance Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Optical Head (AREA)
Description
第１図は本考案の光学式ピツクアツプの一実施
例の光学図、第２図は第１図の要部拡大図、第３
図は従来の光学式ピツクアツプの光学図、第４図
は第３図の一部の詳細を示す断面図である。
１……発光素子、４……ビームスプリツタ、６
……被検知体、９……読み取り用受光素子、１０
……制御用受光素子チツプ、１１……自動出力制
御回路、１４……接着剤。
Figure 1 is an optical diagram of an embodiment of the optical pickup of the present invention, Figure 2 is an enlarged view of the main parts of Figure 1, and Figure 3 is an enlarged view of the main parts of Figure 1.
This figure is an optical diagram of a conventional optical pickup, and FIG. 4 is a sectional view showing a part of FIG. 3 in detail. 1... Light emitting element, 4... Beam splitter, 6
... Detected object, 9 ... Light receiving element for reading, 10
. . . Light receiving element chip for control, 11 . . . Automatic output control circuit, 14 . . . Adhesive.
Claims (1)
ームスプリツタと、このビームスプリツタを透過
し且つ光デイスク等の被検知体の情報により変調
された反射光が前記ビームスプリツタを介して入
射される読み取り用受光素子と、前記ビームスプ
リツタからの反射光を受光する制御用受光素子チ
ツプと、この受光素子チツプの受光量に応じて前
記発光素子の発光出力を制御する自動出力制御回
路とを備えた光学式ピツクアツプにおいて、前記
受光素子チツプを、前記ビームスプリツタと同等
の屈折率を有し透過率の高い接着剤により前記ビ
ームスプリツタに接着してなることを特徴とする
光学式ピツクアツプ。 A beam splitter that reflects and transmits a light beam from a light emitting element, and a reading device in which reflected light that passes through this beam splitter and is modulated by information on an object to be detected such as an optical disk is incident through the beam splitter. a control light receiving element chip that receives reflected light from the beam splitter, and an automatic output control circuit that controls the light emitting output of the light emitting element according to the amount of light received by the light receiving element chip. An optical pickup characterized in that the light receiving element chip is bonded to the beam splitter using an adhesive having a refractive index equivalent to that of the beam splitter and having a high transmittance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17926486U JPS6384728U (en) | 1986-11-21 | 1986-11-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17926486U JPS6384728U (en) | 1986-11-21 | 1986-11-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6384728U true JPS6384728U (en) | 1988-06-03 |
Family
ID=31122174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17926486U Pending JPS6384728U (en) | 1986-11-21 | 1986-11-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6384728U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005088621A1 (en) * | 2004-03-17 | 2005-09-22 | Pioneer Corporation | Optical member, optical pickup, light quantity control means, and light quantity control method |
-
1986
- 1986-11-21 JP JP17926486U patent/JPS6384728U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005088621A1 (en) * | 2004-03-17 | 2005-09-22 | Pioneer Corporation | Optical member, optical pickup, light quantity control means, and light quantity control method |
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