JPS62190929U - - Google Patents
Info
- Publication number
- JPS62190929U JPS62190929U JP7713086U JP7713086U JPS62190929U JP S62190929 U JPS62190929 U JP S62190929U JP 7713086 U JP7713086 U JP 7713086U JP 7713086 U JP7713086 U JP 7713086U JP S62190929 U JPS62190929 U JP S62190929U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- reflecting mirror
- light
- mirror
- position detection
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案に係る光ピツクアツプの一実施
例を示す斜視図、第２図は本考案に用いることが
できる反射鏡の例を示す線図、第３図は同上反射
鏡を用いた実施例を示す斜視図、第４図は本考案
に用いることができる反射鏡の別の例を示す線図
、第５図は同上反射鏡を用いた実施例を示す斜視
図、第６図は一般の光ピツクアツプの構成例を示
す光学配置図である。
１０……対物レンズ、１２……反射鏡、１３…
…発光素子、１４……位置検出素子。
Fig. 1 is a perspective view showing an embodiment of the optical pickup according to the present invention, Fig. 2 is a line diagram showing an example of a reflecting mirror that can be used in the invention, and Fig. 3 is an embodiment using the same reflecting mirror. FIG. 4 is a diagram showing another example of a reflecting mirror that can be used in the present invention, FIG. 5 is a perspective view showing an embodiment using the same reflecting mirror, and FIG. 6 is a general drawing. FIG. 2 is an optical layout diagram showing an example of the configuration of an optical pickup. 10...Objective lens, 12...Reflector, 13...
...Light emitting element, 14...Position detection element.
Claims (1)
小な光スポツトに集束させるための対物レンズと
、対物レンズと一体的に移動する反射鏡と、この
反射鏡に向かつて光を出射する発光素子と、上記
反射鏡によつて反射された上記発光素子からの光
を受光する位置検出素子とを有し、この位置検出
素子の検出信号によつて対物レンズの移動量を検
出するようにした光ピツクアツプにおいて、上記
反射鏡が二次曲面鏡であることを特徴とする光ピ
ツクアツプ。 an objective lens for focusing laser light from a semiconductor laser into a minute light spot on the surface of a recording medium, a reflecting mirror that moves integrally with the objective lens, and a light emitting element that emits light toward the reflecting mirror; and a position detection element that receives light from the light emitting element reflected by the reflection mirror, and the amount of movement of the objective lens is detected by the detection signal of the position detection element. , an optical pickup characterized in that the reflecting mirror is a quadratic curved mirror.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7713086U JPS62190929U (en) | 1986-05-22 | 1986-05-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7713086U JPS62190929U (en) | 1986-05-22 | 1986-05-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62190929U true JPS62190929U (en) | 1987-12-04 |
Family
ID=30924847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7713086U Pending JPS62190929U (en) | 1986-05-22 | 1986-05-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62190929U (en) |
-
1986
- 1986-05-22 JP JP7713086U patent/JPS62190929U/ja active Pending
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