JPS5931017U

JPS5931017U - pulse generator

Info

Publication number: JPS5931017U
Application number: JP12635482U
Authority: JP
Inventors: 雅之上山
Original assignee: ミノルタ株式会社
Priority date: 1982-08-20
Filing date: 1982-08-20
Publication date: 1984-02-27
Also published as: JPH0122091Y2

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

[Brief explanation of drawings]

第１図は本考案の実施例の正面図及び部分断面側面図、
第２図は上記実施例の要部分解斜視図、第３図は反射器
の形状を説明するための説明図、第４図は上記実施例の
縦断面図、第５図は上記実施例の光電信号整形部の回路
図、第６図は反射鏡の他の例を示す斜視図、第７図は上
記実施例のブロック図である。２・・・レンズ距離環、３・・・モーター、４１゜４２
ａ、　　４２ｂ、　　４３ａ、　４３ｂ、　　４４ａ、
　　４４ｂ。４５ａ、４５ｂ、４６−・・ギア、４８・・・バネ、５
・・・反射器、５ａ・・・回転板、６．　６ａ、　　６
ｂ・・・発光素子、　　・７、　７ａ、　　７ｂ・・・
受光素子、９・・・マスク板。FIG. 1 is a front view and a partially sectional side view of an embodiment of the present invention;
Fig. 2 is an exploded perspective view of the main parts of the above embodiment, Fig. 3 is an explanatory diagram for explaining the shape of the reflector, Fig. 4 is a longitudinal sectional view of the above embodiment, and Fig. 5 is a diagram of the above embodiment. A circuit diagram of the photoelectric signal shaping section, FIG. 6 is a perspective view showing another example of the reflecting mirror, and FIG. 7 is a block diagram of the above embodiment. 2...Lens distance ring, 3...Motor, 41°42
a, 42b, 43a, 43b, 44a,
44b. 45a, 45b, 46-... Gear, 48... Spring, 5
... Reflector, 5a... Rotating plate, 6. 6a, 6
b...Light emitting element, ・7, 7a, 7b...
Light receiving element, 9...mask plate.

Claims

[Claims for Utility Model Registration] 1. A light-emitting element, a light-receiving element, a reflector that reflects the light emitted from the light-emitting element and guides the light so as to condense it on the light-receiving element, and a light-emitting element that limits the luminous flux of the light. It is characterized by comprising a mask plate having an aperture for passing through, and a rotary plate having transparent parts and opaque parts alternately formed on its surface and rotatably provided between the light emitting element, the light receiving element, and the reflector. pulse generator. 2 The reflector having the above-mentioned light condensing effect has a cross section of the reflecting surface including the light-emitting element and the light-receiving element, each of which shares one focal point, and the light-emitting element or the light-receiving element is installed at the other focal point. The pulse generator according to claim 1, wherein the pulse generator has a composite shape of two ellipses. 3. Practical use characterized in that the reflector is made of a transparent member having a patterned surface that intermittents light by rotation, with transparent parts and opaque parts arranged radially alternately on the surface facing the light-emitting element and the light-receiving element. A pulse generator according to claims 1 and 2 of the patent claims. 4. Claims for registration of a utility model characterized in that the pattern surface is rotated by a drive device that drives a member whose amount of rotation is to be detected, and is connected by a gear so as to rotate synchronously with the member. The pulse generator according to items 1 to 3.