JPH01151428U - - Google Patents
Info
- Publication number
- JPH01151428U JPH01151428U JP4631188U JP4631188U JPH01151428U JP H01151428 U JPH01151428 U JP H01151428U JP 4631188 U JP4631188 U JP 4631188U JP 4631188 U JP4631188 U JP 4631188U JP H01151428 U JPH01151428 U JP H01151428U
- Authority
- JP
- Japan
- Prior art keywords
- recording lens
- axis direction
- cutting machine
- optical axis
- optical disk
- 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 3
- 239000011521 glass Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Optical Recording Or Reproduction (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Manufacturing Optical Record Carriers (AREA)
Description
第1図は本考案の実施例を示す概略図、第2図
aからeは本考案を説明するための説明図、第3
図は従来例を示す概略図である。
4…フオーカス検知用光ビーム、7…フオーカ
ス検知器、8…ガラス原盤。
Figure 1 is a schematic diagram showing an embodiment of the present invention, Figures 2 a to e are explanatory diagrams for explaining the present invention, and Figure 3 is a schematic diagram showing an embodiment of the present invention.
The figure is a schematic diagram showing a conventional example. 4... Focus detection light beam, 7... Focus detector, 8... Glass master disc.
Claims (1)
る光デイスクカツテイングマシンにおいて、フオ
ーカス検知用光ビームのガラス原盤からの反射光
によつてフオーカス誤差検出用2分割光検出器の
片側の検出器の出力レベルを検出し、これにより
前記記録レンズを含む筐体の光軸方向の移動速度
を高速から低速に変化させることを特徴とした光
デイスクのカツテイングマシンの記録レンズ移動
装置。 In an optical disk cutting machine in which the housing containing the recording lens is movable in the optical axis direction, one side of the two-split photodetector for focus error detection is detected by the reflected light from the glass master of the focus detection light beam. 1. A recording lens moving device for an optical disk cutting machine, which detects the output level of the recording lens and changes the moving speed of a housing including the recording lens in the optical axis direction from high speed to low speed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4631188U JPH01151428U (en) | 1988-04-06 | 1988-04-06 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4631188U JPH01151428U (en) | 1988-04-06 | 1988-04-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01151428U true JPH01151428U (en) | 1989-10-19 |
Family
ID=31272581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4631188U Pending JPH01151428U (en) | 1988-04-06 | 1988-04-06 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01151428U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999021181A1 (en) * | 1997-10-16 | 1999-04-29 | Seiko Epson Corporation | Recorder |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS536001A (en) * | 1976-07-07 | 1978-01-20 | Toshiba Corp | Focus location detector for optical recording medium |
JPS57172306A (en) * | 1981-04-17 | 1982-10-23 | Tdk Corp | Focus controller of optical recording system |
JPS6257127A (en) * | 1985-09-06 | 1987-03-12 | Hitachi Ltd | Automatic focus control system |
-
1988
- 1988-04-06 JP JP4631188U patent/JPH01151428U/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS536001A (en) * | 1976-07-07 | 1978-01-20 | Toshiba Corp | Focus location detector for optical recording medium |
JPS57172306A (en) * | 1981-04-17 | 1982-10-23 | Tdk Corp | Focus controller of optical recording system |
JPS6257127A (en) * | 1985-09-06 | 1987-03-12 | Hitachi Ltd | Automatic focus control system |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999021181A1 (en) * | 1997-10-16 | 1999-04-29 | Seiko Epson Corporation | Recorder |
WO1999021182A1 (en) * | 1997-10-16 | 1999-04-29 | Seiko Epson Corporation | Recorder |
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