JPS63137340U

JPS63137340U -

Info

Publication number: JPS63137340U
Application number: JP2984487U
Authority: JP
Priority date: 1987-02-28
Filing date: 1987-02-28
Publication date: 1988-09-09

Description

[Brief explanation of the drawing]

第１図は本考案による照明装置の側断面図、第
２図は照明装置部分の側面図、第３図は照明装置
の全体構成を示す一部を破断して示す照明装置の
平面図、第４図は従来の照明装置の側断面図、第
５図ａ，ｂはスキヤン方向による発光ランプのフ
イラメントに対する影響を説明するための説明図
、である。１……発光ランプ、２……主反射板、３……補
助反射板、４……上側反射板、５……コンタクト
ガラス、５ａ……スリツト状照射部、９……照明
ランプ基板、１０……照明部支持体、１３……ス
キヤナー本体、１５……止ネジ。 FIG. 1 is a side sectional view of a lighting device according to the present invention, FIG. 2 is a side view of a portion of the lighting device, FIG. 3 is a partially cutaway plan view of the lighting device showing the overall configuration of the lighting device, and FIG. FIG. 4 is a side sectional view of a conventional illumination device, and FIGS. 5a and 5b are explanatory diagrams for explaining the influence of the scanning direction on the filament of the light emitting lamp. DESCRIPTION OF SYMBOLS 1... Light emitting lamp, 2... Main reflecting plate, 3... Auxiliary reflecting plate, 4... Upper reflecting plate, 5... Contact glass, 5a... Slit-shaped irradiation part, 9... Illumination lamp substrate, 10... ...Illumination part support body, 13...Scanner body, 15...Set screw.

Claims

[Claims for Utility Model Registration] (1) In a slit exposure type electrophotographic copying machine using illumination means in which a plurality of light emitting lamps are arranged along the light emitting center in the longitudinal direction of one reflecting plate, each light emitting lamp is An illumination device for a copying machine, characterized in that an axis is disposed approximately parallel to the direction of movement of an optical scanner. (2) The cross-sectional shape of the reflector is an elliptical reflective surface with a light emitting lamp located at the first focal point on the lower side and a second focal point on the contact glass illumination surface, and the upper side is an elliptical reflective surface with a light emitting lamp located at the first focal point, and the upper side is an auxiliary reflective surface formed on the opposite surface. Utility model registration claim 1 characterized in that the reflecting plate forms an elliptical reflecting surface that focuses on the contact glass illumination surface.
A lighting device for a copying machine as described in Section 1. (3) Attach the light emitting lamp to the lamp board approximately perpendicular to the direction of movement of the optical scanner, and
3. The illumination device for a copying machine according to claim 2, wherein the illumination device is configured to be placed at the focal point of the reflector through an opening in the reflector in parallel to the scanner movement direction.