CAMERA WITH BUILT-IN FILTER FUNCTION

PURPOSE:To provide a camera automatically having the filter function without using a filter by automatically emitting the correction light in the color corresponding the color tone of the external light inside of a camera box, and irradiating a film with the external light and the correction light s...

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Bibliographic Details
Main Author TOMITA MASAHARU
Format Patent
LanguageEnglish
Published 15.07.1994
Edition5
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
CINEMATOGRAPHY
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING
ELECTROGRAPHY
FREQUENCY-CHANGING
HOLOGRAPHY
NON-LINEAR OPTICS
OPTICAL ANALOGUE/DIGITAL CONVERTERS
OPTICAL LOGIC ELEMENTS
OPTICS
PHOTOGRAPHY
PHYSICS
TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Summary:PURPOSE:To provide a camera automatically having the filter function without using a filter by automatically emitting the correction light in the color corresponding the color tone of the external light inside of a camera box, and irradiating a film with the external light and the correction light simultaneously, and sensitizing it. CONSTITUTION:A camera with a built-in filter function automatically computes the color of the correction light for correcting the color tone of a light source 2, which is arranged inside of a camera and which consists of a light emitting material for emitting the light in the appropriate color, and the external light 6 to a desired color tone. A control system 8 for controlling the light emitting material so that the light source 2 emits the correction light in a desired color tone and an optical system for making the correction light emitted from the light source 2 and the external light 6 work on the sensitive surface of a film 3 evenly are provided. This light source 2 consists of plural light emitting material arranged on the circumference for surrounding the external light 6, and each light emitting material is operated for light emission/quenching by turning on/off the voltage to be applied.
Bibliography:Application Number: JP19920346077