JPS6157319U - - Google Patents
Info
- Publication number
- JPS6157319U JPS6157319U JP14248384U JP14248384U JPS6157319U JP S6157319 U JPS6157319 U JP S6157319U JP 14248384 U JP14248384 U JP 14248384U JP 14248384 U JP14248384 U JP 14248384U JP S6157319 U JPS6157319 U JP S6157319U
- Authority
- JP
- Japan
- Prior art keywords
- information recording
- recording disk
- information
- reproducing
- angle
- 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 7
- 230000001678 irradiating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図は本考案のピツクアツプの傾斜角度を調
整する角度調整装置のブロツク図、第２図は従来
角度調整装置の正面図、第３図はその平面図、第
４図はその特性図である。
１……デイスク、２……ピツクアツプ、３……
対物レンズ、４……レーザビーム、５……光源、
６……光、７，８……受光素子、９……角度検出
手段、１１……差動増幅器、１２……角度調整回
路、１３……判別手段、１４……利得制御回路、
１５……直流電圧発生器。
Fig. 1 is a block diagram of the angle adjusting device of the present invention for adjusting the inclination angle of the pickup, Fig. 2 is a front view of the conventional angle adjusting device, Fig. 3 is its plan view, and Fig. 4 is its characteristic diagram. . 1...Disk, 2...Pickup, 3...
Objective lens, 4... Laser beam, 5... Light source,
6... Light, 7, 8... Light receiving element, 9... Angle detection means, 11... Differential amplifier, 12... Angle adjustment circuit, 13... Discrimination means, 14... Gain control circuit,
15...DC voltage generator.
Claims (1)
円盤と異なるフオーマツトで情報が記録再生され
る第２の情報記録円盤とに、該情報を光学的に記
録又は再生する光学的情報記録再生装置であつて
、該情報記録円盤にレーザビーム等の光を照射し
て情報を記録又は再生する記録再生手段と、該記
録再生手段より発せられる該光の光軸と該情報記
録円盤との相対的角度を検出する角度検出手段と
、該角度検出手段からの信号に対応して該記録再
生手段を駆動して該光軸の該情報記録円盤に対す
る角度を調整する角度調整手段とを備え、該第１
の情報記録円盤と第２の情報記録円盤に情報を記
録再生する際調整される該光軸の基準設定位置を
、該第１の情報記録円盤に記録再生する場合と該
第２の情報記録円盤に記録再生する場合とにおい
て異ならせるようにしたことを特徴とする光学的
情報記録再生装置。 (2) 該第１の情報記録円盤と第２の情報記録円
盤の厚さ、外径、重量、反射率、中心孔径、記録
又は再生信号のうち少なくともいずれか１つの差
異を検出することにより両者を判別し、該角度の
調整に用いられる差動増幅器の入力又は出力のう
ち少なくともいずれか一方を該判別出力によつて
自動的に制御するようにしたことを特徴とする実
用新案登録請求の範囲第１項記載の光学的情報記
録再生装置。[Scope of Claim for Utility Model Registration] (1) The information is optically transferred to a first information recording disk and a second information recording disk on which information is recorded and reproduced in a format different from that of the first information recording disk. An optical information recording/reproducing device for recording or reproducing information on an information recording disk, comprising: a recording/reproducing means for recording or reproducing information by irradiating the information recording disk with light such as a laser beam; An angle detecting means for detecting a relative angle between an optical axis and the information recording disk; and an angle detecting means for driving the recording and reproducing means in response to a signal from the angle detecting means to measure the angle of the optical axis with respect to the information recording disk. and an angle adjusting means for adjusting the first angle.
The reference setting position of the optical axis, which is adjusted when recording and reproducing information on the information recording disk and the second information recording disk, is recorded and reproduced on the first information recording disk and the second information recording disk. 1. An optical information recording and reproducing device characterized in that the optical information recording and reproducing device is configured to be different in the case of recording and reproducing. (2) By detecting a difference in at least one of the thickness, outer diameter, weight, reflectance, center hole diameter, recording or reproduction signal between the first information recording disk and the second information recording disk. A utility model registration claim characterized in that at least one of the input and output of a differential amplifier used for adjusting the angle is automatically controlled by the determined output. 2. The optical information recording and reproducing device according to item 1.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14248384U JPH0351781Y2 (en) | 1984-09-20 | 1984-09-20 | |
| US06/778,098 US4773052A (en) | 1984-09-20 | 1985-09-20 | Dual mode disk player/recorder |
| GB08523253A GB2166583B (en) | 1984-09-20 | 1985-09-20 | Optical information recording and/or reproducing apparatus |
| DE3533647A DE3533647C2 (en) | 1984-09-20 | 1985-09-20 | Optical information recording and playback device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14248384U JPH0351781Y2 (en) | 1984-09-20 | 1984-09-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6157319U true JPS6157319U (en) | 1986-04-17 |
| JPH0351781Y2 JPH0351781Y2 (en) | 1991-11-07 |
Family
ID=30700807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14248384U Expired JPH0351781Y2 (en) | 1984-09-20 | 1984-09-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0351781Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0371438A (en) * | 1989-08-11 | 1991-03-27 | Sanyo Electric Co Ltd | Tilt servo device |
| WO1997015922A1 (en) * | 1995-10-26 | 1997-05-01 | Sony Corporation | Optical disk drive |
-
1984
- 1984-09-20 JP JP14248384U patent/JPH0351781Y2/ja not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0371438A (en) * | 1989-08-11 | 1991-03-27 | Sanyo Electric Co Ltd | Tilt servo device |
| WO1997015922A1 (en) * | 1995-10-26 | 1997-05-01 | Sony Corporation | Optical disk drive |
| US5970035A (en) * | 1995-10-26 | 1999-10-19 | Sony Corporation | Disc device that controls the incident angle of a light beam striking a disc |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0351781Y2 (en) | 1991-11-07 |
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