JPH042317U - - Google Patents
Info
- Publication number
- JPH042317U JPH042317U JP3984790U JP3984790U JPH042317U JP H042317 U JPH042317 U JP H042317U JP 3984790 U JP3984790 U JP 3984790U JP 3984790 U JP3984790 U JP 3984790U JP H042317 U JPH042317 U JP H042317U
- Authority
- JP
- Japan
- Prior art keywords
- optical disk
- light beam
- switching
- detection means
- irradiating
- 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 description 4
- 238000001514 detection method Methods 0.000 claims 2
- 230000001678 irradiating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図は本考案の一実施例を示す概略構成図で
ある。 １……半導体レーザ、２……光デイスク、３…
…トラツク、４……受光素子。
ある。 １……半導体レーザ、２……光デイスク、３…
…トラツク、４……受光素子。
Claims (1)
- 光デイスクの信号記録領域に光ビームを照射す
る手段と、前記光デイスクからの前記光ビームの
反射回折光の回折角を検出する検出手段と、該検
出手段出力により、記録信号フオーマツトを切り
換える切換手段とを備えたことを特徴とする光デ
イスク装置。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990039847U JPH087529Y2 (ja) | 1990-04-14 | 1990-04-14 | 光ディスク装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990039847U JPH087529Y2 (ja) | 1990-04-14 | 1990-04-14 | 光ディスク装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH042317U true JPH042317U (ja) | 1992-01-09 |
| JPH087529Y2 JPH087529Y2 (ja) | 1996-03-04 |
Family
ID=31549113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990039847U Expired - Lifetime JPH087529Y2 (ja) | 1990-04-14 | 1990-04-14 | 光ディスク装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH087529Y2 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008117671A1 (ja) * | 2007-03-23 | 2008-10-02 | Mitsubishi Electric Corporation | 光ディスク判別方法及び光ディスク判別装置 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6276061A (ja) * | 1985-09-30 | 1987-04-08 | Toshiba Corp | デイスク再生装置 |
| JPH03198225A (ja) * | 1989-12-26 | 1991-08-29 | Sanyo Electric Co Ltd | 光学式再生装置 |
-
1990
- 1990-04-14 JP JP1990039847U patent/JPH087529Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6276061A (ja) * | 1985-09-30 | 1987-04-08 | Toshiba Corp | デイスク再生装置 |
| JPH03198225A (ja) * | 1989-12-26 | 1991-08-29 | Sanyo Electric Co Ltd | 光学式再生装置 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008117671A1 (ja) * | 2007-03-23 | 2008-10-02 | Mitsubishi Electric Corporation | 光ディスク判別方法及び光ディスク判別装置 |
| US8264930B2 (en) | 2007-03-23 | 2012-09-11 | Mitsubishi Electric Corporation | Optical disc discriminating method and optical disc discriminating apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH087529Y2 (ja) | 1996-03-04 |