JPH0188560U

JPH0188560U -

Info

Publication number: JPH0188560U
Application number: JP18449287U
Authority: JP
Priority date: 1987-12-03
Filing date: 1987-12-03
Publication date: 1989-06-12

Description

[Brief explanation of the drawing]

第１図は本考案の画像読取装置の一実施例を示
す画像読取部の概略図、第２図は第１図の要部を
示す拡大図、第３図は透明平板の一例を示す斜視
図、第４図は透明平板と光軸との屈折の関係を示
す図、第５図は傾斜角とずれ量との関係を示す図
、第６図は本考案の他の実施例の説明図、第７図
イ，ロ，ハはいずれも本考案の更に他の実施例の
説明図、第８図は透明平板の他の例を示す斜視図
、第９図はハロゲンランプの光の波長と分光パワ
ーとの関係を示す図、第１０図は赤外カツトフイ
ルターに適した光の透過率を示す図、第１１図は
従来の画像読取装置における画像読取部の概略図
、第１２図はリニアイメージセンサーの一例を示
す正面図、第１３図は第１２図の平面図、第１４
図は第１２図の側面図、第１５図は読取素子の配
列状態を示す図、第１６図及び第１７図はいずれ
も従来の他の例を示す概略図である。２…原稿、３…光源、５…レンズアレイ、７…
リニアイメージセンサー、９，９′…センサーチ
ツプ、１２…透明平板。 FIG. 1 is a schematic diagram of an image reading section showing an embodiment of the image reading device of the present invention, FIG. 2 is an enlarged view showing the main parts of FIG. 1, and FIG. 3 is a perspective view showing an example of a transparent flat plate. , FIG. 4 is a diagram showing the refraction relationship between the transparent flat plate and the optical axis, FIG. 5 is a diagram showing the relationship between the tilt angle and the amount of deviation, and FIG. 6 is an explanatory diagram of another embodiment of the present invention. Figures 7A, 7B and 7C are all explanatory diagrams of still another embodiment of the present invention, Figure 8 is a perspective view showing another example of a transparent flat plate, and Figure 9 is the wavelength and spectrum of light from a halogen lamp. A diagram showing the relationship with power, Figure 10 is a diagram showing the light transmittance suitable for an infrared cut filter, Figure 11 is a schematic diagram of the image reading section in a conventional image reading device, and Figure 12 is a linear image. A front view showing an example of the sensor, FIG. 13 is a plan view of FIG. 12, and FIG.
The figure is a side view of FIG. 12, FIG. 15 is a diagram showing the arrangement of reading elements, and FIGS. 16 and 17 are schematic diagrams showing other conventional examples. 2... Original, 3... Light source, 5... Lens array, 7...
Linear image sensor, 9, 9'...sensor chip, 12...transparent flat plate.

Claims

[Scope of utility model registration request]

In an image reading device that uses a linear image sensor in which a plurality of reading elements are arranged in a staggered manner or in parallel at required intervals to read reflected light from a document through an imaging lens, the above-mentioned imaging lens and An image reading device characterized in that a transparent flat plate is arranged between reading elements so as to be inclined with respect to an optical axis.