JPS6033315U - light modulator - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来例を示す概略斜視図、第２図は本考案の光
変調器を示す概略斜視図、第３図は変調手段の縦断説明
図、第４図は本考案の光変調器の他の例を示す概略斜視
図である。 ２０．４０・・・光変調器、２１．４１・・・変調手段
、２２．４２・・・圧電振動子、２３．２４．４３・・
・圧電素子、２５．４４−１・・弾性板、２６．４５・
・・可動スリット部、２７．４６・・・遮光部、２８，
４７・・・透光部、３０，４８・・・固定スリット板。 第３図 第４図FIG. 1 is a schematic perspective view showing a conventional example, FIG. 2 is a schematic perspective view showing an optical modulator of the present invention, FIG. 3 is a vertical cross-sectional view of the modulation means, and FIG. It is a schematic perspective view which shows another example. 20.40... Optical modulator, 21.41... Modulation means, 22.42... Piezoelectric vibrator, 23.24.43...
・Piezoelectric element, 25.44-1・・Elastic plate, 26.45・
...Movable slit part, 27.46... Light shielding part, 28,
47... Transparent part, 30, 48... Fixed slit plate. Figure 3 Figure 4

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 光検出器に入射される光を変調手段を有する圧電振動子
の振動により変調して該光検出器に導びく光変調器にお
いて、前記圧電振動子は圧電素子と弾性板とよりなり、
この弾性板は先端部を延長しかつ直角に屈曲され、該先
端部には所要の遮光部と透光部とが交互に形成されて可
動スリット部とし、この可動スリット部とこれに対設さ
れる固定スリット板とにより変調手段が形成されること
を特徴とする光変調器。In an optical modulator that modulates light incident on a photodetector by vibration of a piezoelectric vibrator having a modulation means and guides the light to the photodetector, the piezoelectric vibrator is composed of a piezoelectric element and an elastic plate,
The tip of this elastic plate is extended and bent at right angles, and the tip is alternately formed with required light-shielding parts and light-transmitting parts to form a movable slit, and the movable slit is provided opposite to the movable slit. An optical modulator characterized in that a modulation means is formed by a fixed slit plate.