JPH0249274U

JPH0249274U -

Info

Publication number: JPH0249274U
Application number: JP12840988U
Authority: JP
Priority date: 1988-09-30
Filing date: 1988-09-30
Publication date: 1990-04-05

Description

[Brief explanation of drawings]

第１図は本考案になる複合型ラインセンサの出
力信号の周波数スペクトラム等を示す図、第２図
は本考案になるスキヤナ装置の出力撮像信号の周
波数スペクトラム等を示す図、第３図、第４図、
第６図、第９図及び第１０図は夫々本考案になる
複合型ラインセンサの各実施例の構成図、第５図
は本考案スキヤナ装置の要部の一実施例のブロツ
ク図、第７図は第６図の変形例を示す図、第８図
は本考案による副走査方向の折り返し歪低減の説
明図、第１１図は従来のラインセンサの一例の構
成図、第１２図は第１１図の出力信号の周波数ス
ペクトラム等を示す図である。Ｉａ，Ｉｂ……出力信号の周波数スペクトラム
、ＩＶ……合成撮像信号の周波数スペクトラム、
６，７，１７……ラインセンサ、８，１１，１８
，２８，２９……光電変換部、９，１２，１９，
３１，３４，３５……転送部、２３……ｎライン
遅延線、２４……加算器、３０……蓄積部。 Fig. 1 is a diagram showing the frequency spectrum etc. of the output signal of the composite type line sensor according to the present invention, Fig. 2 is a diagram showing the frequency spectrum etc. of the output imaging signal of the scanner device according to the present invention, Figs. Figure 4,
6, 9 and 10 are block diagrams of each embodiment of the composite line sensor of the present invention, FIG. 5 is a block diagram of an embodiment of the main part of the scanner device of the present invention, and FIG. 6 is a diagram showing a modification of FIG. 6, FIG. 8 is an explanatory diagram of the reduction of aliasing distortion in the sub-scanning direction according to the present invention, FIG. 11 is a configuration diagram of an example of a conventional line sensor, and FIG. It is a figure which shows the frequency spectrum etc. of the output signal of a figure. Ia, Ib... Frequency spectrum of output signal, IV... Frequency spectrum of composite imaging signal,
6, 7, 17... Line sensor, 8, 11, 18
, 28, 29... photoelectric conversion section, 9, 12, 19,
31, 34, 35... transfer unit, 23... n-line delay line, 24... adder, 30... storage unit.

Claims

[Claims for Utility Model Registration] (1) The outputs of the plurality of photoelectric conversion units arranged in a straight line are serially transferred by the transfer unit into which the outputs of the plurality of photoelectric conversion units are input, respectively, to generate an imaging signal. A composite type in which two line sensors configured to take out the information are arranged adjacent to each other, and the two line sensors are arranged on the same chip with the two line sensors shifted from each other in the main scanning direction by 1/2 the arrangement pitch of the photoelectric conversion section. line sensor. (2) Each output of the plurality of photoelectric conversion units of one of the two line sensors is inputted, and the photoelectric conversion output is time-aligned with the photoelectric conversion output of the other line sensor. Claim 1, wherein a storage section is provided to hold the data for a certain period of time, and the photoelectric conversion outputs of the storage section and the other line sensor are supplied in parallel to a single or dedicated transfer section for serial transfer. Composite line sensor described. (3) a moving means for moving the two line sensors in a sub-scanning direction perpendicular to their longitudinal directions; and relative times of first and second imaging signals taken out separately from the two line sensors. 2. The composite type according to claim 1, comprising a delay means for performing the time adjustment, and a synthesis means for adding or switching the first and second image signals time-aligned by the delay means and outputting a composite image signal. Scanner device using line sensor. (4) The scanner device according to claim 3, wherein the scanner device is configured to obtain the composite image signal every time the two line sensors move in the sub-scanning direction by a distance that is 1/2 times the arrangement pitch of the photoelectric conversion units.