JPH02145870U

JPH02145870U -

Info

Publication number: JPH02145870U
Application number: JP5419489U
Authority: JP
Priority date: 1989-05-11
Filing date: 1989-05-11
Publication date: 1990-12-11

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示しており、ａは
照明装置の断面図、ｂは箱状遮光筒列設部材を示
す正面図、ｃはｂの上面図、ｄはａの下面図、ｅ
はｂの縦断面図、第２図は本考案の他の実施例を
示しており、ａは照明装置の断面図、ｂは箱状遮
光筒列設部材を示す正面図、ｃはｂの上面図、ｄ
はａの下面図、ｅはｂの縦断面図、第３図は本考
案の装置を原稿面の情報読み取り用に用いた場合
を示す斜視図、第４図は本考案の装置を物体の位
置検出装置に用いた場合を示す構成図および波形
図、第５図は第４図で示した装置の制御システム
を示すブロツク図、第６図は本考案の装置を一次
元イメージセンサーの画像読み取り有効範囲判別
装置に用いた場合を示す斜視図、第７図は第６図
で示した装置の動作を説明するための構成図およ
び波形図、第８図は第７図で示した装置の制御シ
ステムを示すブロツク図、第９図ａ，ｂはそれぞ
れ従来装置の問題点を説明するための構成図およ
び波形図である。２１……発光素子、２５……遮光筒、２７ａ…
…隔壁。 FIG. 1 shows an embodiment of the present invention, in which a is a cross-sectional view of the illumination device, b is a front view showing a box-shaped light-shielding tube arrangement member, c is a top view of b, and d is a bottom view of a. , e
2 is a longitudinal sectional view of b, FIG. 2 is a sectional view of another embodiment of the present invention, a is a sectional view of the lighting device, b is a front view of the box-shaped light-shielding tube arrangement member, and c is the top surface of b. Figure, d
is a bottom view of a, e is a vertical sectional view of b, FIG. 3 is a perspective view showing the device of the present invention used for reading information on the surface of a document, and FIG. A configuration diagram and a waveform diagram showing the case where the device is used in a detection device, FIG. 5 is a block diagram showing the control system of the device shown in FIG. 4, and FIG. A perspective view showing the case where it is used in a range discrimination device, FIG. 7 is a configuration diagram and a waveform diagram for explaining the operation of the device shown in FIG. 6, and FIG. 8 is a control system for the device shown in FIG. 7. FIGS. 9a and 9b are a block diagram and a waveform diagram, respectively, for explaining the problems of the conventional device. 21...Light emitting element, 25...Shade tube, 27a...
...bulkhead.

Claims

[Claims for Utility Model Registration] (1) A plurality of light emitting elements each provided with light diffusivity and arranged in parallel to each other so as to face the same direction; A lighting device comprising: a plurality of light-shielding tubes arranged in parallel with each other such that one end opening is fitted with a light-emitting part of a corresponding light-emitting element, and the other end opening faces in the same direction. (2) The lighting device according to claim 1, wherein each of the plurality of light-shielding tubes has a partition wall along the axial direction inside, and the inside of the light-shielding tube is divided into a plurality of cylindrical parts by the partition wall.