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1. WO2013005921 - DEVICE FOR ADJUSTING AN AMOUNT OF INCIDENT LIGHT, AND METHOD FOR CONTROLLING SAME

Publication Number WO/2013/005921
Publication Date 10.01.2013
International Application No. PCT/KR2012/003805
International Filing Date 15.05.2012
IPC
H04N 5/238 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment
225Television cameras
235Circuitry for compensating for variation in the brightness of the object
238by influencing optical part of the camera
G03B 7/00 2006.01
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
7Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
CPC
G03B 7/18
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
7Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
18in accordance with light-reducing "factor" of filter or other obturator used with or on the lens of the camera
G03B 9/08
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
9Exposure-making shutters; Diaphragms
08Shutters
Applicants
  • 에이치기술(주) HT INC [KR]/[KR] (AllExceptUS)
  • 강세진 Kang, Se Jin [KR]/[KR] (UsOnly)
  • 한경수 HAN, Kyung Su [KR]/[KR] (UsOnly)
Inventors
  • 강세진 Kang, Se Jin
  • 한경수 HAN, Kyung Su
Agents
  • 도진봉 DO, Jin Bong
Priority Data
10-2011-006668006.07.2011KR
10-2012-001721621.02.2012KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) DEVICE FOR ADJUSTING AN AMOUNT OF INCIDENT LIGHT, AND METHOD FOR CONTROLLING SAME
(FR) DISPOSITIF POUR AJUSTER UNE QUANTITÉ DE LUMIÈRE INCIDENTE ET PROCÉDÉ POUR EN ASSURER LA COMMANDE
(KO) 입사광량 조절 장치 및 그 제어 방법
Abstract
(EN)
Disclosed are a device for adjusting an amount of incident light, which can be applied to an imaging apparatus, and a method for controlling the device. When installed on the imaging apparatus so as to adjust the amount of incident light using an image sensor, the device for adjusting the amount of incident light comprises: an LCD substrate, positioned in a path of the incident light, for adjusting the transmittance of a liquid crystal layer according to the amount of a voltage at both ends of the LCD substrate; and a transmittance controller for controlling the amount of the voltage at both ends of the LCD substrate, wherein voltages at electrodes on both ends of the LCD substrate are adjusted so as to adjust the transmittance of the LCD substrate and to adjust the amount of light incident to the image sensor.
(FR)
L'invention concerne un dispositif pour ajuster une quantité de lumière incidente, pouvant s'utiliser avec un appareil d'imagerie, ainsi qu'un procédé pour assurer la commande dudit dispositif. Lorsqu'il est installé sur l'appareil d'imagerie de façon à ajuster la quantité de lumière incidente à l'aide d'un capteur d'image, le dispositif d'ajustement de la quantité de lumière incidente comprend : un substrat LCD, positionné sur le parcours de la lumière incidente, qui sert à régler le facteur de transmission d'une couche de cristaux liquides en fonction de l'amplitude d'une tension aux deux extrémités du substrat LCD et un régulateur de facteur de transmission servant à réguler l'amplitude de la tension aux deux extrémités du substrat LCD, les tensions au niveau des électrodes aux deux extrémités du substrat LCD étant ajustées de façon à régler le facteur de transmission du substrat LCD et à ajuster la quantité de lumière incidente en fonction du capteur d'image.
(KO)
촬상 장치에 적용 가능한 입사광량 조절 장치 및 그 제어 방법이 개시된다. 촬상 장치에 설치되어 이미지 센서로 입사되는 광량을 조절하는 장치로서, 입사광경로 상에 위치하며, 양단에 걸리는 전압의 크기에 따라 액정층의 투과율이 조절되는 LCD 기판 및 상기 LCD 기판의 양단에 걸리는 전압의 크기를 제어하는 투과율 제어부를 포함하는 입사광량 조절 장치에 의하면, LCD 기판의 양단 전극에 걸리는 전압을 조절하여 LCD 기판의 투과율을 조절하여 이미지 센서로 입사되는 광량을 조절할 수 있다.
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