IMAGE READING APPARATUS

To provide an image reading apparatus capable of obtaining auxiliary signals even in an imaging optical system in which many small-sized imaging lenses are arranged.SOLUTION: An image reading apparatus 101 according to the present invention includes: a light source 12 for imaging which illuminates a...

Full description

Saved in:
Bibliographic Details
Main Authors YAMAGATA KOSAKU, SUGANO MIKI, KUNIEDA TATSUYA, TAKUSHIMA SHU, KONO HIROYUKI, MATSUZAWA TAKU, TOKITA NAOYUKI
Format Patent
LanguageEnglish
Japanese
Published 10.10.2019
Subjects
ACCESSORIES THEREFOR
APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM
CALCULATING
CINEMATOGRAPHY
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
ELECTROGRAPHY
HOLOGRAPHY
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHOTOGRAPHY
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
Online AccessGet full text

Cover

More Information
Summary:To provide an image reading apparatus capable of obtaining auxiliary signals even in an imaging optical system in which many small-sized imaging lenses are arranged.SOLUTION: An image reading apparatus 101 according to the present invention includes: a light source 12 for imaging which illuminates a reading object 1 with illumination light; a plurality of sensor chips 25 which have a lens 18 and a lens 20 respectively and read each of a plurality of imaging optical elements 15 and images formed by the plurality of imaging optical elements 15; and a light source 40 for ranging which irradiates the reading object 1 with auxiliary signal light directed to the lens 18 from the lens 20 of a target imaging optical element which is the imaging optical element 15 to be subjected among the plurality of imaging optical elements 15. The light source 40 for ranging is disposed so that the auxiliary signal light is read by the sensor chips 25 reading the image of the adjacent imaging optical element adjacent to the target imaging optical element.SELECTED DRAWING: Figure 2 【課題】小型の結像レンズを多数配列した結像光学系においても、上記補助信号を得ることができる画像読取装置を提供する。【解決手段】 本発明に係る画像読取装置１０１は、読取対象物１を照明光で照明する撮像用光源１２と、レンズ１８およびレンズ２０をそれぞれ有し、複数の結像光学素子１５と、複数の結像光学素子１５により形成された画像のそれぞれを読取る複数のセンサチップ２５と、複数の結像光学素子１５のうち対象となる結像光学素子１５である対象結像光学素子のレンズ２０からレ１８に向かう補助信号光を読取対象物１に照射する測距用光源４０と、を備え、測距用光源４０は、対象結像光学素子に隣接する隣接結像光学素子の画像を読取るセンサチップ２５が補助信号光を読取るように配置されるものである。【選択図】 図２
Bibliography:Application Number: JP20180064630