JPS6386621U - - Google Patents
Info
- Publication number
- JPS6386621U JPS6386621U JP18264486U JP18264486U JPS6386621U JP S6386621 U JPS6386621 U JP S6386621U JP 18264486 U JP18264486 U JP 18264486U JP 18264486 U JP18264486 U JP 18264486U JP S6386621 U JPS6386621 U JP S6386621U
- Authority
- JP
- Japan
- Prior art keywords
- light amount
- optical element
- light
- stabilizing device
- polarizing plate
- 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 8
- 230000010287 polarization Effects 0.000 claims description 3
- 238000002834 transmittance Methods 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims 4
- 239000000126 substance Substances 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 1
- 230000005389 magnetism Effects 0.000 claims 1
- 230000006641 stabilisation Effects 0.000 claims 1
- 238000011105 stabilization Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
Description
第１図は本考案を示すブロツク図、第２図は光
素子の斜視図、第３図はＰＬＺＴの電圧と透過率
の関係を示した曲線図、第４図と第５図はそれぞ
れランダム光とレーザー光を利用するときの光素
子への入射を示す図である。また第６図は従来例
のブロツク図である。
１，１１……レーザー光源、１２……光素子、
４，１３……光ビームスプリツタ、５，１４……
光検出器、６，１５……比較回路、Ｂｉ……レー
ザー発振入射光、Ｂｏ……安定出射光、Ｂｆ……
０次回折光、Ｂｄ……一次回折光、Ｅ……基準電
圧、Ｇ……電気又は磁気光学効果の物質、Ｌ……
レンズ、Ｐ……電極、Ｓ……スリツト、Ｔ……偏
光板、θ……偏光角。
Figure 1 is a block diagram showing the present invention, Figure 2 is a perspective view of an optical device, Figure 3 is a curve diagram showing the relationship between voltage and transmittance of PLZT, and Figures 4 and 5 are random light FIG. 3 is a diagram showing the incidence on an optical element when laser light is used. FIG. 6 is a block diagram of a conventional example. 1, 11... Laser light source, 12... Optical element,
4,13...Light beam splitter, 5,14...
Photodetector, 6, 15... Comparison circuit, Bi... Laser oscillation incident light, Bo... Stable output light, Bf...
0th order diffraction light, Bd...1st order diffraction light, E...reference voltage, G...material with electric or magneto-optic effect, L...
Lens, P...electrode, S...slit, T...polarizing plate, θ...polarization angle.
Claims (1)
源からの光線を分割するビームスプリツタと、該
ビームスプリツタにより分割された一方の光量を
検出する手段とから成り、該検出手段により得ら
れた光量信号と比較電子回路により、前記光素子
の透過率を制御することによつて、光量を安定化
することを特徴とする光量安定化装置。 (2) 前記光素子が、電圧により偏光面が回転効
果を有する物質と偏光板とにより形成されたこと
を特徴とする実用新案登録請求の範囲第１項記載
の光量安定化装置。 (3) 前記光素子が、磁気により偏光面が回転を
有する物質と偏光板とにより形成されたことを特
徴とする実用新案登録請求の範囲第１項記載の光
量安定化装置。 (4) 前記光素子の制御電極のピツチが、使用す
る光ビーム径より大きいことを特徴とする実用新
案登録請求の範囲の第１項ないし第３項の何れか
１項に記載の光量安定化装置。[Claims for Utility Model Registration] (1) An optical element whose transmittance can be controlled from the outside, a beam splitter that splits the light beam from the light source, and means for detecting the amount of one of the lights split by the beam splitter. A light amount stabilizing device comprising: a light amount stabilizing device, characterized in that the light amount is stabilized by controlling the transmittance of the optical element using the light amount signal obtained by the detection means and a comparison electronic circuit. (2) The light amount stabilizing device according to claim 1, wherein the optical element is formed of a polarizing plate and a substance whose polarization plane rotates when applied with a voltage. (3) The light amount stabilizing device according to claim 1, wherein the optical element is formed of a polarizing plate and a substance whose polarization plane is rotated by magnetism. (4) The light amount stabilization according to any one of claims 1 to 3 of the utility model registration claim, wherein the pitch of the control electrode of the optical element is larger than the diameter of the light beam used. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18264486U JPS6386621U (en) | 1986-11-26 | 1986-11-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18264486U JPS6386621U (en) | 1986-11-26 | 1986-11-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6386621U true JPS6386621U (en) | 1988-06-06 |
Family
ID=31128634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18264486U Pending JPS6386621U (en) | 1986-11-26 | 1986-11-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6386621U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102319126B1 (en) * | 2021-04-14 | 2021-10-29 | 포항공과대학교 산학협력단 | Apparatus and method for generating and stabilizing of beam power |
-
1986
- 1986-11-26 JP JP18264486U patent/JPS6386621U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102319126B1 (en) * | 2021-04-14 | 2021-10-29 | 포항공과대학교 산학협력단 | Apparatus and method for generating and stabilizing of beam power |
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