PICTURE INPUT EQUIPMENT

PURPOSE:To prevent the decrease in the original density and to miniaturize the equipment by providing a polarization plate between a light source and an original and between the original and a read side respectively so that the polarized direction is made orthogonal thereto thereby cutting off a reg...

Full description

Saved in:
Bibliographic Details
Main Author IMOTO YOSHIYA
Format Patent
LanguageEnglish
Published 03.07.1987
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
HANDLING RECORD CARRIERS
HOLOGRAPHY
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHOTOGRAPHY
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
Online AccessGet full text

Cover

More Information
Summary:PURPOSE:To prevent the decrease in the original density and to miniaturize the equipment by providing a polarization plate between a light source and an original and between the original and a read side respectively so that the polarized direction is made orthogonal thereto thereby cutting off a regularly reflected light. CONSTITUTION:A light lambda1 from a light source 1 passes through a polarized plate 11, becomes a light lambda2 having a polarized component in X direction only and is irradiated to an original face 2. The light lambda2 is reflected in the original face 2 and divided into a regularly reflected light lambda3' and a scattered light lambda3. The light lambda3, lambda3' are irradiated from the incident point of the light lambda2, enter the polarized plate 13, where the light becomes lights lambda4', lambda4 having only the Y direction component, they are collected by a lens 3 and the image is formed in an image sensor 4. Since the light lambda3' is a light having only the X direction component, it is cut off by the polarization plate 13 and not incident in the sensor 4. On the other hand, the light lambda3 is a random light, the Y component transmitting through the polarization plate 13 remains and density information is read by the sensor 4. The light source 1 and the sensor 4 are arranged closely, then the miniaturization of the entire equipment is attained.
Bibliography:Application Number: JP19850290051