JPH0262534U

JPH0262534U -

Info

Publication number: JPH0262534U
Application number: JP14108788U
Authority: JP
Priority date: 1988-10-31
Filing date: 1988-10-31
Publication date: 1990-05-10

Description

[Brief explanation of the drawing]

第１図乃至第３図は本考案の実施例に係る帯状
照明装置で、第１図はイメージスキヤナに組込ん
だ状態を示す基本構成図、第２図は該照明装置の
全体平面図、第３図はその要部正面図、第４図は
本考案の効果を示す照度分布図を示す。第５図は
請求項(5)に記載した考案の実施例に係る帯状照
明装置の要部正面図である。１：管状光源、５：被照射面、２：補助反射体
、２１，２２：複数の反射面、２３―４１，２４
―４２：移動手段。 1 to 3 show a strip-shaped illumination device according to an embodiment of the present invention, FIG. 1 is a basic configuration diagram showing a state where it is incorporated into an image scanner, FIG. 2 is an overall plan view of the illumination device, FIG. 3 is a front view of the main part, and FIG. 4 is an illuminance distribution diagram showing the effects of the present invention. FIG. 5 is a front view of essential parts of a strip-shaped lighting device according to an embodiment of the invention set forth in claim (5). 1: Tubular light source, 5: Irradiated surface, 2: Auxiliary reflector, 21, 22: Multiple reflective surfaces, 23-41, 24
-42: Means of transportation.

Claims

[Scope of Claim for Utility Model Registration] (1) An auxiliary reflector that corrects the illuminance distribution of the irradiated surface by reflecting the radiation light from a tubular light source and partially irradiating a specific part of the irradiated surface. established,
A strip-shaped lighting device characterized in that the auxiliary reflector is formed by a plurality of reflecting surfaces having different reflection directions. (2) In the apparatus according to claim (1), wherein the specific portion is on the longitudinal end side of the irradiated surface, the auxiliary reflector is arranged in a direction that intersects the optical path guided from the irradiated surface to the optical system. A strip-shaped illumination device comprising a first reflective surface and a second reflective surface connected to the first reflective surface and arranged at a position substantially opposite to the tubular light source across the optical path. (3) The strip-shaped lighting device according to claim (1), wherein the auxiliary reflector is configured to be movable in a predetermined direction. (4) The strip-shaped illumination device according to claim (2), wherein the second reflective surface of the auxiliary reflector is formed so as to be gradually narrowed from the end side of the tubular light source toward the center side. (5) An auxiliary reflector that corrects the illuminance distribution of the irradiated surface by reflecting the radiation light from the tubular light source and partially irradiating a specific part of the irradiated surface, and an auxiliary reflector selected for the auxiliary reflector. A belt-shaped illumination device comprising a moving means for moving in one direction, and the moving means is configured to be able to adjust the irradiation amount and/or irradiation position of the reflected light guided from the auxiliary reflector to the irradiated surface. Device. (6) In the apparatus according to claim (5), wherein the specific portion is on the longitudinal end side of the irradiated surface, the auxiliary reflector is arranged at least in a direction that intersects an optical path guided from the irradiated surface to the optical system. a strip-shaped illumination device including a first reflective surface having a reflective surface;