JPH01177742U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の露光量調整装置を用いた複写
装置の光学系を示す説明図、第２図は可動遮光部
材の取付け構造を示す斜視図、第３図は本考案の
第１実施例の概略側面図、第４図及び第５図は可
動遮光部材の取付け構造の変形例を示す斜視図、
第６図は本考案の第２実施例の概略側面図、第７
図は本考案の第３実施例の概略側面図、第８図は
２つの光路を有する光学系の概略側面図、第９図
は従来の露光量調整装置を示す概略側面図である
。 １０……主反射鏡、１２……副反射鏡、１３…
…可動遮光部材、Ｐ……第１照明光路、Ｑ……第
２照明光路、Ｒ……第３照明光路。 Fig. 1 is an explanatory diagram showing the optical system of a copying machine using the exposure amount adjusting device of the present invention, Fig. 2 is a perspective view showing the mounting structure of a movable light shielding member, and Fig. 3 is a first embodiment of the present invention. 4 and 5 are perspective views showing modified examples of the mounting structure of the movable light shielding member,
FIG. 6 is a schematic side view of the second embodiment of the present invention;
The figure is a schematic side view of a third embodiment of the present invention, FIG. 8 is a schematic side view of an optical system having two optical paths, and FIG. 9 is a schematic side view showing a conventional exposure amount adjusting device. 10...Main reflecting mirror, 12...Sub reflecting mirror, 13...
...Movable light shielding member, P...First illumination optical path, Q...Second illumination optical path, R...Third illumination optical path.

Claims (1)

【実用新案登録請求の範囲】 光源管灯と反射鏡とを備え、光源管灯からの光
を反射鏡で反射集光させて原稿面を照射する反射
照明光路と、光源管灯からの光を直接原稿面に照
射する直接照明光路とを有し、光源管灯から原稿
面に達する露光量を調整する露光量調整装置にお
いて、 前記直接照明光路の途中に直接照明光路の光量
を調整する光量調整部材を設けたことを特徴とす
る露光量調整装置。[Scope of Claim for Utility Model Registration] A reflective illumination optical path comprising a light source tube and a reflector, which reflects and focuses the light from the light source tube on the reflector to illuminate the document surface; In an exposure amount adjustment device that has a direct illumination optical path that directly illuminates the document surface and adjusts the amount of exposure that reaches the document surface from the light source tube lamp, a light amount adjustment device that adjusts the light amount of the direct illumination optical path is provided in the middle of the direct illumination optical path. An exposure amount adjusting device characterized by being provided with a member.