JPH02128117U

JPH02128117U -

Info

Publication number: JPH02128117U
Application number: JP1989036888U
Authority: JP
Priority date: 1989-03-30
Filing date: 1989-03-30
Publication date: 1990-10-23

Description

[Brief explanation of drawings]

第１図Ａ及びＢは本考案の光路可変装置の第一
実施例による全体の構成及びその実際の使用例を
示す斜視図及び側面図、第２図、第３図及び第４
図は第一実施例に係る電歪素子の平面図、正面図
及び側面図、第５図及び第６図並びに第７図及び
第８図は電圧の印加により歪曲せしめられた上記
電歪素子上の反射体を介して形成される光路の変
化の状態を示す側面図並びに正面図、第９図及び
第１０図は第二実施例に係る電歪素子の平面図及
び側面図、第１１図は従来の読み取装置の構成を
示す斜視図である。１……発光体、２……受光体、３……電歪素子
、３ａ……圧電セラミツク板、３ｂ……中間電極
、３ｃ，３ｃ′……外側電極、４……反射体、５
……保持板、６……止めビス。 1A and 1B are a perspective view and a side view showing the overall configuration and an example of its actual use according to the first embodiment of the variable optical path device of the present invention, and FIGS. 2, 3, and 4 are
The figures show a plan view, a front view, and a side view of the electrostrictive element according to the first embodiment, and FIGS. 5 and 6, and FIGS. 7 and 8 show the electrostrictive element distorted by the application of voltage. 9 and 10 are a plan view and a side view of the electrostrictive element according to the second embodiment, and FIG. FIG. 1 is a perspective view showing the configuration of a conventional reading device. 1... Luminous body, 2... Photoreceptor, 3... Electrostrictive element, 3a... Piezoelectric ceramic plate, 3b... Intermediate electrode, 3c, 3c'... Outer electrode, 4... Reflector, 5
...Retaining plate, 6... Set screw.

Claims

[Claims for Utility Model Registration] (1) An optical path is formed between a light-emitting element and a light-receiving element via a reflector attached to the surface of the electrostrictive element, and a voltage is applied to the electrostrictive element. An optical path variable device capable of changing the optical path according to distortion of the electrostrictive element, characterized in that a plurality of outer electrodes are provided for applying a voltage to both sides of the electrostrictive element. (2) The optical path variable device according to claim (1), characterized in that a plurality of outer electrodes are provided on one surface of the electrostrictive element.