JPH0293746U - - Google Patents
Info
- Publication number
- JPH0293746U JPH0293746U JP97689U JP97689U JPH0293746U JP H0293746 U JPH0293746 U JP H0293746U JP 97689 U JP97689 U JP 97689U JP 97689 U JP97689 U JP 97689U JP H0293746 U JPH0293746 U JP H0293746U
- Authority
- JP
- Japan
- Prior art keywords
- light source
- laser light
- reflectance
- measured
- resistor
- 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 3
- 238000010586 diagram Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
第１図は本考案の具体的実施例を示す反射率測
定装置の構成図、第２図は本考案の説明に供する
図、第３図はその他の実施例を示す図、第４図は
従来の技術の説明に供する図である。
１，１０…自動出力光制御回路（ＡＰＣ回路）
、２…半導体レーザ（ＬＤ）、３…レンズ、４…
ビーム・スプリツタ、５…集光レンズ、６…被測
定対象、７…集光レンズ、８…光センサ。
Fig. 1 is a configuration diagram of a reflectance measuring device showing a specific embodiment of the present invention, Fig. 2 is a diagram for explaining the present invention, Fig. 3 is a diagram showing other embodiments, and Fig. 4 is a conventional FIG. 1, 10...Automatic output light control circuit (APC circuit)
, 2... semiconductor laser (LD), 3... lens, 4...
Beam splitter, 5... Condensing lens, 6... Target to be measured, 7... Condensing lens, 8... Optical sensor.
Claims (1)
する反射率測定装置において、前記レーザ光源に
直列接続されたレーザ光源保護用の抵抗を具備す
るレーザ光源出力を一定に保持する自動出力光制
御装置と、前記被測定対象で反射した光が前記レ
ーザ光源に戻るように設定された光路と、該光路
からの戻り光を前記レーザ光源で電気エネルギー
に変換し、該電気エネルギーを前記レーザ光源用
の抵抗の電位差として検出して該電位差の変化か
ら前記被測定対象の反射率を知る手段と、から成
ることを特徴とする反射率測定装置。 In a reflectance measuring device that measures the reflectance of an object to be measured using a laser light source, an automatic output light control device that maintains the output of the laser light source at a constant level includes a resistor for protecting the laser light source connected in series with the laser light source. and an optical path set so that the light reflected by the object to be measured returns to the laser light source, and the return light from the optical path is converted into electrical energy by the laser light source, and the electrical energy is used for the laser light source. A reflectance measuring device comprising: means for detecting a potential difference in a resistor and determining the reflectance of the object to be measured from a change in the potential difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP97689U JPH0293746U (en) | 1989-01-09 | 1989-01-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP97689U JPH0293746U (en) | 1989-01-09 | 1989-01-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0293746U true JPH0293746U (en) | 1990-07-25 |
Family
ID=31200465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP97689U Pending JPH0293746U (en) | 1989-01-09 | 1989-01-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0293746U (en) |
-
1989
- 1989-01-09 JP JP97689U patent/JPH0293746U/ja active Pending
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