JPS646518U

JPS646518U -

Info

Publication number: JPS646518U
Application number: JP10222687U
Authority: JP
Priority date: 1987-07-01
Filing date: 1987-07-01
Publication date: 1989-01-13

Description

[Brief explanation of the drawing]

第１図は本考案の光フアイバエンコーダ装置の
構成を示す説明図、第２図は本考案の光量調整器
の実施例を示す側断面図、第３図は光量調整器の
他の実施例を示す要部側面図、第４図は従来の光
フアイバエンコーダ装置の構成を示す説明図、第
５図は信号波形を示す特性図である。Ａは電気回路部、Ｂは検出部、２は発光素子、
３，４は光フアイバコネクタ、５１，５２は光フ
アイバ、６は光量調整器、７はレンズ、８は固定
スリツト板、９は回転デイスク、１０は受光器、
１４は支持部材、１５は調整ねじ、１７は当て板
、ａは検出電気信号、ｂは基準電圧、ｃは整形信
号である。 FIG. 1 is an explanatory diagram showing the configuration of the optical fiber encoder device of the present invention, FIG. 2 is a side sectional view showing an embodiment of the light amount adjuster of the present invention, and FIG. 3 is a diagram showing another embodiment of the light amount adjuster. FIG. 4 is an explanatory diagram showing the configuration of a conventional optical fiber encoder device, and FIG. 5 is a characteristic diagram showing signal waveforms. A is an electric circuit section, B is a detection section, 2 is a light emitting element,
3 and 4 are optical fiber connectors, 51 and 52 are optical fibers, 6 is a light amount adjuster, 7 is a lens, 8 is a fixed slit plate, 9 is a rotating disk, 10 is a light receiver,
14 is a support member, 15 is an adjustment screw, 17 is a backing plate, a is a detected electric signal, b is a reference voltage, and c is a shaping signal.

Claims

[Claims for Utility Model Registration] 1. A light-emitting element, a light-receiving element, and a waveform shaping circuit for processing output signals of the light-receiving element, and a receptacle for an optical fiber connector optically connected to the light-emitting element and the light-receiving element. an electric circuit section, a detection section provided with an optical fiber having a rotary disk and a fixed slit plate, one end of which is connected to the plug of the optical fiber connector, and the other end of which is opposed to the fixed slit plate; An optical fiber encoder device comprising a light amount adjuster that bends a portion of the optical fiber to adjust the amount of detected light to a set level. 2. A utility model registration in which the light amount adjuster includes a support member that contacts the optical fiber and has a diameter smaller than the critical radius, a push plate that bends the optical fiber along the support member, and an adjustment screw that moves the push plate. An optical fiber encoder device according to claim 1. 3. The optical fiber encoder device according to claim 1, wherein the light amount adjuster is provided with a reinforcing spring on the bending portion of the optical fiber.