JPH02135920U - - Google Patents
Info
- Publication number
- JPH02135920U JPH02135920U JP4422289U JP4422289U JPH02135920U JP H02135920 U JPH02135920 U JP H02135920U JP 4422289 U JP4422289 U JP 4422289U JP 4422289 U JP4422289 U JP 4422289U JP H02135920 U JPH02135920 U JP H02135920U
- Authority
- JP
- Japan
- Prior art keywords
- light amount
- light
- optical disk
- amount
- light beam
- 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
- 230000003287 optical effect Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Optical Head (AREA)
Description
第１図は本考案に係る光デイスク装置の要部を
示す模式図である。
１……半導体レーザ、２……コリメータレンズ
、４……光量センサ、５……光量判定回路、６…
…光量制御回路、ＰＤ……光デイスク。
FIG. 1 is a schematic diagram showing the main parts of an optical disk device according to the present invention. DESCRIPTION OF SYMBOLS 1... Semiconductor laser, 2... Collimator lens, 4... Light amount sensor, 5... Light amount determination circuit, 6...
...light control circuit, PD...optical disk.
Claims (1)
に対し情報を記録／再生する光デイスク装置にお
いて、 前記光ビームの光量を検出する光量センサと、
検出した光量が適正か否かを判定する光量判定手
段と、該光量判定手段が不適正であると判定した
場合に前記光ビームの光量を増加すべく制御する
光量制御手段とを備えることを特徴とする光デイ
スク装置。[Claims for Utility Model Registration] An optical disk device that projects a light beam onto an optical disk to record/reproduce information on the optical disk, comprising: a light amount sensor that detects the amount of light of the light beam;
It is characterized by comprising: a light amount determining means for determining whether the detected light amount is appropriate; and a light amount controlling means for controlling the light amount of the light beam to increase when the light amount determining means determines that the detected light amount is inappropriate. optical disk device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4422289U JPH02135920U (en) | 1989-04-14 | 1989-04-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4422289U JPH02135920U (en) | 1989-04-14 | 1989-04-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02135920U true JPH02135920U (en) | 1990-11-13 |
Family
ID=31557327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4422289U Pending JPH02135920U (en) | 1989-04-14 | 1989-04-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02135920U (en) |
-
1989
- 1989-04-14 JP JP4422289U patent/JPH02135920U/ja active Pending