JPS61174025U - - Google Patents
Info
- Publication number
- JPS61174025U JPS61174025U JP5750585U JP5750585U JPS61174025U JP S61174025 U JPS61174025 U JP S61174025U JP 5750585 U JP5750585 U JP 5750585U JP 5750585 U JP5750585 U JP 5750585U JP S61174025 U JPS61174025 U JP S61174025U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- radial
- light receiving
- vertical direction
- displacement
- 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
- 238000006073 displacement reaction Methods 0.000 claims 3
- 238000001514 detection method Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Optical Head (AREA)
Description
第１図は本考案である４対の発光素子および受
光素子を取付ける位置の例を示したピツクアツプ
レンズとそれを支持する装置の斜視図、第２図は
第１図の側面図で受光素子側を示す。第３図は、
４個の受光素子を含む本考案の制御装置の回路構
成図である。
１……ピツクアツプレンズを支持するメカ部、
２……ピツクアツプレンズ、３〜６……発光素子
、７〜１０……受光素子、１３〜１５……オペア
ンプ、１６……トラツキングコイル。
Figure 1 is a perspective view of a pick-up lens and a device that supports it, showing examples of the mounting positions of the four pairs of light emitting elements and light receiving elements of the present invention, and Figure 2 is a side view of Figure 1, with the light receiving elements side. shows. Figure 3 shows
FIG. 2 is a circuit configuration diagram of a control device of the present invention including four light receiving elements. 1...Mechanical part that supports the pick-up lens,
2... Pickup lens, 3-6... Light emitting element, 7-10... Light receiving element, 13-15... Operational amplifier, 16... Tracking coil.
Claims (1)
クアツプレンズを持つ光学式デイスクプレーヤの
レンズを支持する装置において、発光素子と受光
素子をレンズをはさんで径方向、垂直方向各々に
２個ずつ取付け、垂直方向２個の受光素子の和を
とり、更にその２組の差をとつた電気的偏差信号
によりレンズの径方向変位を垂直方向変位に関与
せず検出し、メカ部が高速で径方向へ移動する場
合においても常に径方向の変位すなわち振動を抑
制し径方向受光素子の中央に制止させることを特
徴とする光ビーム検出式振動抑制装置。 In a device for supporting the lens of an optical disk player having a pick-up lens with a degree of freedom in the disk radial direction and the vertical direction, two light emitting elements and two light receiving elements are installed in each of the radial direction and the vertical direction with the lens in between. The radial displacement of the lens is detected without being affected by the vertical displacement by calculating the sum of the two light receiving elements in the vertical direction and then using the electric deviation signal obtained by calculating the difference between the two sets, and the mechanical part moves in the radial direction at high speed. A light beam detection type vibration suppressing device characterized by always suppressing radial displacement, that is, vibration even when moving, and stopping it at the center of a radial light receiving element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5750585U JPS61174025U (en) | 1985-04-19 | 1985-04-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5750585U JPS61174025U (en) | 1985-04-19 | 1985-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61174025U true JPS61174025U (en) | 1986-10-29 |
Family
ID=30582098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5750585U Pending JPS61174025U (en) | 1985-04-19 | 1985-04-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61174025U (en) |
-
1985
- 1985-04-19 JP JP5750585U patent/JPS61174025U/ja active Pending
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