JPS6249366U

JPS6249366U -

Info

Publication number: JPS6249366U
Application number: JP14003785U
Authority: JP
Priority date: 1985-09-12
Filing date: 1985-09-12
Publication date: 1987-03-26

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す正面図、第２
図は第１図の右側面図、第３図は第１図の状態か
らのレンズ切換後の正面図、第４図は従来例の光
源から光センサまでの全体の光学系を示す概念図
で、ａは正面図、ｂは平面図である。１……主ホルダ、１ａ，１ｂ……主ホルダ突き
当て部、２……ベアリング、３……ホルダシヤフ
ト、４……レンズホルダ、４ａ，４ｂ……レンズ
ホルダ突き当て部、５……アーム、６……Ａシエ
ーデイングプレート、７……Ｂシエーデイングプ
レート、８……Ａレンズ、９……Ｂレンズ、１０
……ＣＣＤセンサ固定基板、１０ａ……ＣＣＤセ
ンサ、１１……レンズ切換え機構、２１……光源
、２２……読取面、２３……読取幅、２４……レ
ンズ、２５……シエーデイングプレート、２６…
…光量感知センサ。 Figure 1 is a front view showing one embodiment of the present invention;
The figure is a right side view of Fig. 1, Fig. 3 is a front view after switching the lens from the state shown in Fig. 1, and Fig. 4 is a conceptual diagram showing the entire optical system from the light source to the optical sensor in the conventional example. , a is a front view, and b is a plan view. 1... Main holder, 1a, 1b... Main holder abutting part, 2... Bearing, 3... Holder shaft, 4... Lens holder, 4a, 4b... Lens holder abutting part, 5... Arm, 6...A shading plate, 7...B shading plate, 8...A lens, 9...B lens, 10
... CCD sensor fixing board, 10a ... CCD sensor, 11 ... lens switching mechanism, 21 ... light source, 22 ... reading surface, 23 ... reading width, 24 ... lens, 25 ... shading plate, 26...
...Light detection sensor.

Claims

[Scope of utility model registration request]

A shading plate for adjusting the amount of reflected light from the document reading surface of a facsimile device, two types of lenses, and a device for sensing the amount of light focused by one of the two types of lenses. An optical system mechanism comprising a light amount sensing sensor and a main holder for fixing the light amount sensing sensor,
Holds the two types of lenses, is rotatably attached to the main holder so that their centers coincide with the center of the light amount sensing sensor, and is in use while each of the two types of lenses is in use. A lens holder having a shape that prevents light from entering the light amount sensing sensor from sources other than the lens, and a separate shifting plate connected to the lens holder on the light incident side of each of the two types of lenses can be installed. An optical system mechanism characterized by comprising an arm.