JPH036529U - - Google Patents
Info
- Publication number
- JPH036529U JPH036529U JP6577089U JP6577089U JPH036529U JP H036529 U JPH036529 U JP H036529U JP 6577089 U JP6577089 U JP 6577089U JP 6577089 U JP6577089 U JP 6577089U JP H036529 U JPH036529 U JP H036529U
- Authority
- JP
- Japan
- Prior art keywords
- light
- optical power
- incident light
- branching means
- photodetector
- 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
- 238000002834 transmittance Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims 4
- 230000010287 polarization Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Description
第１図は本考案の一実施例を示す模式構造図、
第２図はハーフミラーの正面図、第３図はＳ偏光
及びＰ偏光の入射角による透過率を示すグラフ、
第４図ａ及びｂは同実施例の他の利用態様を示す
模式構造図、第５図は従来の光検出器の一例を示
す模式構造図、第６図は従来の光検出器の他の例
を示す模式構造図である。
１０……光検出器、１３……分岐手段としての
ハーフミラー、１５……全反射ミラー部、１６…
…透過部としての透明部。
FIG. 1 is a schematic structural diagram showing an embodiment of the present invention.
Figure 2 is a front view of the half mirror, Figure 3 is a graph showing the transmittance of S-polarized light and P-polarized light depending on the incident angle.
4a and 4b are schematic structural diagrams showing other usage modes of the same embodiment, FIG. 5 is a schematic structural diagram showing an example of a conventional photodetector, and FIG. 6 is a schematic structural diagram showing another example of a conventional photodetector. FIG. 2 is a schematic structural diagram showing an example. 10... Photodetector, 13... Half mirror as branching means, 15... Total reflection mirror section, 16...
...Transparent part as a transparent part.
Claims (1)
し、モニタ光の光パワーを検出することによつて
入射光または透過光の光パワーをモニタする光検
出器において、透過部と全反射ミラー部とを周期
的に交互に配置したハーフミラーを前記分岐手段
として設けたことを特徴とする光検出器。 ２ 入射光を分岐手段で透過光とモニタ光に分岐
し、モニタ光の光パワーを検出することによつて
入射光又は透過光の光パワーをモニタする光検出
器において、透過部と全反射ミラー部とを周期的
に交互に配置したハーフミラーを前記分岐手段と
して設け、該ハーフミラーに対する入射角を入射
光の偏光によつて透過率が変化しない角度範囲内
に設定したことを特徴とする光検出器。[Claims for Utility Model Registration] 1. A photodetector that monitors the optical power of incident light or transmitted light by branching incident light into transmitted light and monitor light using a branching means and detecting the optical power of the monitor light. A photodetector characterized in that a half mirror in which transmitting portions and total reflection mirror portions are periodically arranged alternately is provided as the branching means. 2. In a photodetector that monitors the optical power of the incident light or transmitted light by splitting the incident light into transmitted light and monitor light using a branching means and detecting the optical power of the monitor light, a transmitting part and a total reflection mirror are used. The branching means is provided with a half mirror in which portions are arranged alternately periodically, and the angle of incidence with respect to the half mirror is set within an angular range in which the transmittance does not change depending on the polarization of the incident light. Detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6577089U JPH0635147Y2 (en) | 1989-06-07 | 1989-06-07 | Photo detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6577089U JPH0635147Y2 (en) | 1989-06-07 | 1989-06-07 | Photo detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH036529U true JPH036529U (en) | 1991-01-22 |
| JPH0635147Y2 JPH0635147Y2 (en) | 1994-09-14 |
Family
ID=31597896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6577089U Expired - Lifetime JPH0635147Y2 (en) | 1989-06-07 | 1989-06-07 | Photo detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0635147Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003518616A (en) * | 1999-12-24 | 2003-06-10 | エフ．ホフマン−ラ ロシュ アーゲー | Method and apparatus for measuring the spatial average intensity of a light beam and method and apparatus for adjusting a light source |
-
1989
- 1989-06-07 JP JP6577089U patent/JPH0635147Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003518616A (en) * | 1999-12-24 | 2003-06-10 | エフ．ホフマン−ラ ロシュ アーゲー | Method and apparatus for measuring the spatial average intensity of a light beam and method and apparatus for adjusting a light source |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0635147Y2 (en) | 1994-09-14 |
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