KR930004756Y1 - Illumination device for liquid crystal information board - Google Patents

Illumination device for liquid crystal information board Download PDF

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Publication number
KR930004756Y1
KR930004756Y1 KR2019900018599U KR900018599U KR930004756Y1 KR 930004756 Y1 KR930004756 Y1 KR 930004756Y1 KR 2019900018599 U KR2019900018599 U KR 2019900018599U KR 900018599 U KR900018599 U KR 900018599U KR 930004756 Y1 KR930004756 Y1 KR 930004756Y1
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South Korea
Prior art keywords
display panel
information display
liquid crystal
camera
lamp
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KR2019900018599U
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Korean (ko)
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KR920010116U (en
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이평수
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삼성항공산업 주식회사
안시환
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Priority to KR2019900018599U priority Critical patent/KR930004756Y1/en
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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B17/00Details of cameras or camera bodies; Accessories therefor
    • G03B17/18Signals indicating condition of a camera member or suitability of light
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F23/00Advertising on or in specific articles, e.g. ashtrays, letter-boxes
    • G09F23/02Advertising on or in specific articles, e.g. ashtrays, letter-boxes the advertising matter being displayed by the operation of the article
    • G09F23/04Advertising on or in specific articles, e.g. ashtrays, letter-boxes the advertising matter being displayed by the operation of the article illuminated
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/35Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

내용 없음.No content.

Description

액정정보표시판의 조명장치LCD lighting device

제1도는 카메라에 설치되는 액정정보 표시판의 설치상태를 나타내는 도면.1 is a diagram showing an installation state of a liquid crystal information display panel installed in a camera.

제2도는 제1도와 같이 설치되어 있는 액정정보 표시판의 정보를 판독하기 위하여 사용되는 조명 회로도.FIG. 2 is an illumination circuit diagram used to read information on the liquid crystal information display panel provided in FIG.

제3도는 본 고안에 따른 조명 회로도의 실시예를 나타내는 도면.3 is a view showing an embodiment of a lighting circuit diagram according to the present invention.

제4도는 제3도와 같은 조명장치에 의해 조명을 행하는 실시예를 나타내는 도면.FIG. 4 is a diagram showing an embodiment of illuminating by an illumination device such as that of FIG.

제5도는 제3도와 같은 조명장치에 의해 조명을 행하는 다른 실시예를 나타내는 도면이다.FIG. 5 is a diagram showing another embodiment of illuminating by an illumination device such as that of FIG.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

5 : 스위치 6 : 휘도일정레벨 검출 회로부5: switch 6: luminance constant level detection circuit section

7 : 광전소자 8 : 트랜지스터7: photoelectric device 8: transistor

9 : 램프 13 : 정보표시판9 lamp 13 information display board

14 : 투시창14: see-through window

본 고안은 액정정보 표시판의 조명장치에 관한 것으로서, 보다 상세하게는 주위 조명에 따라 점등하여 표시판의 정보를 판독가능케 하는 액정정보 표시판의 조명장치에 관한 것이다.The present invention relates to an illuminating device of a liquid crystal information display panel, and more particularly, to an illuminating device of a liquid crystal information display panel that lights up according to ambient lighting to make information of the display panel readable.

일반적으로 카메라를 사용하여 피사체를 촬영코자 할 때 파인더를 통하여 대상 피사체를 보면서 촬영을 하게되는데, 특히 줌 카메라의 경우에는 초점거리, 플래시 선택모드, 촬영매수 등의 정보를 표시하여 주는 정보판을 갖고 있다.In general, when shooting a subject using a camera, the subject is taken while looking through the finder. Especially in the case of a zoom camera, an information plate displaying information such as a focal length, a flash selection mode, and the number of shots is displayed. have.

이 정보표시판은 개별부품이나 기구적 장치로 표시하도록 되어 있기 때문에 카메라의 기능과 구조를 복잡하게 하는 한 요인이 되고 있다.Since the information display panel is displayed by individual parts or mechanical devices, it becomes a factor that complicates the function and structure of the camera.

이러한 문제점을 해소하기 위하여 근자에 이르러서는 LCD를 사용한 정보 표시판을 카메라에 적용하기에 이르렀는데, 이 LCD 정보표시판은 자체적으로 정보를 표시할 수 있기 때문에 구조를 간단히 할 수 있는 이점은 있으나, 빛이 없는 장소에서는 표시를 할 수 없는 결점을 갖고 있다.In order to solve this problem, in recent years, the information display panel using LCD has been applied to the camera. This LCD information display panel can display information on its own, which has the advantage of simplifying the structure. There is a drawback that cannot be displayed in a place without.

따라서 일정휘도 이하 또는 어두운 곳에서 카메라의 동작상태를 판독하기 위하여 종래에서 제1도에 도시한 바와같이 카메라의 외부에서 인위적으로 빛을 발산시켜 정보판(1)을 확인하였다.Therefore, in order to read the operating state of the camera at a certain luminance or less, as shown in FIG. 1, the information plate 1 was confirmed by artificially radiating light from the outside of the camera.

이러한 방식은 촬영에 소정의 시간을 필요로 하기 때문에 순간촬영에 대한 기회를 잃게 되는 문제점이 있다.This method has a problem in that it takes a certain time to shoot, and thus loses the opportunity for instant shooting.

제2도는 상기한 바와같은 기술상의 문제점을 해소하기 위하여 제안된 정보 조명 회로도이다.2 is an information lighting circuit diagram proposed to solve the above technical problem.

이 방식은 카메라 내부에 조명용 램프(2)를 설치하고, 이 램프(2)를 수동으로 조작되는 스위치(3)에 의해 전원과 연결되어 점등되도록 되어 있기 때문에, 정보 표시판을 일단 확인한 후 카메라의 작동상태를 수행해야 하는 번거로움이 있다.In this method, since the lamp 2 is installed inside the camera and the lamp 2 is connected to a power source by a switch 3 operated manually, the camera is operated after confirming the information display panel. There is a hassle of having to perform a state.

상기한 어떤 방식의 조명장치라도 순간적으로 포착을 해야하는 촬영의 경우에는 사용에 제한을 받게된다.Any of the above-described lighting apparatuses are limited in use in the case of photographing which must be captured momentarily.

본 고안은 상기한 바와같은 종래 기술의 문제점을 해소하기 위하여 안출된 것으로서, 본 고안의 목적은 일정 휘도 이하에서 정보 표시판을 밝혀줄 수 있는 램프를 점등시켜 어떠한 장소에서도 순간포착의 촬영이 가능한 액정정표 표시판 조명장치를 제공하는 데 있다.The present invention has been made to solve the problems of the prior art as described above, the object of the present invention is to illuminate the information display panel below a certain brightness by lighting a lamp that can capture the moment in any place by the liquid crystal display It is to provide a display panel lighting device.

이를 실현하기 위하여 본 고안은 정보 표시판을 조사하는 램프를 트랜지스터를 개재하여 스위치와 연결함과 아울러 상기한 트랜지스터의 베이스를 공정소자를 갖는 휘도일정레벨 검출회로부 출력단과 연결하여서 된 액정 정보 표시판 조명장치를 제공한다.In order to realize this, the present invention provides a liquid crystal information display panel lighting device in which a lamp for irradiating an information display panel is connected to a switch via a transistor, and a base of the transistor is connected to an output terminal of a luminance constant level detection circuit unit having a process element. to provide.

이하 본 고안의 바람직한 실시예를 첨부한 도면에 따라 더욱 상세히 설명한다.Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

제3도는 본 고안을 실현 가능케하는 본 고안의 회로도로서, 전원(4)과 스위치(5)를 직렬로 접속되고, 이 스위치(5)는 휘도일정레벨 검출회로부(6)와 병렬로 연결되며, 셔텨버튼(도시생략)에 연동하도록 되어있다.3 is a circuit diagram of the present invention for realizing the present invention, the power supply 4 and the switch 5 are connected in series, the switch 5 is connected in parallel with the luminance constant level detection circuit section 6, It is linked to the shutter button (not shown).

이 휘도일정레벨 검출회로부(6)에는 광전변환소자(7)가 전기적으로 연결되어지며, 출력단측에 트랜지스터(8)가 연결된다.The photoelectric conversion element 7 is electrically connected to the luminance constant level detection circuit unit 6, and the transistor 8 is connected to the output terminal side.

상기한 트랜지스터(8)의 콜렉터에 램프(9)가 연결되며, 이 램프(9)에는 전류를 제어하는 저항(10)이 연결된다.A lamp 9 is connected to the collector of the transistor 8, and a resistor 10 for controlling a current is connected to the lamp 9.

제4도 및 제5도는 상기한 바와같은 조명장치에 카메라에 내장된 상태를 나타내는 도면으로서, 본체(11)내의 내부장치(12)에 정보표시판(13)이 위치하여 투명창(14)과 대향설치되어 있으며, 이들 사이에 램프(9)가 위치하여 있다.4 and 5 are views showing a state in which the lighting device is built in the camera as described above, and the information display panel 13 is positioned on the internal device 12 in the main body 11 so as to face the transparent window 14. The lamp 9 is located between them.

상기한 램프(9)는 제5도에 도시한 바와같이 정보 표시판(13)의 후측에 배치할 수도 있다.The lamp 9 can also be arranged on the rear side of the information display panel 13 as shown in FIG.

이와같이 이루어지는 본 고안의 조명장치는 셔터버튼을 누르게 되면 스위치(5)가 온되어 전원이 공급된다.In the lighting device of the present invention, the switch 5 is turned on when the shutter button is pressed to supply power.

이때 광전소자(7)는 피사체의 휘도를 검출하여 휘도에 대응하는 광전변환 출력을 휘도일정레벨 검출회로부(6)로 공급한다.At this time, the photoelectric element 7 detects the luminance of the subject and supplies the photoelectric conversion output corresponding to the luminance to the luminance constant level detection circuit unit 6.

이 휘도일정레벨 검출회로부(6)는 카메라에 널리 사용되고 있는 회로와 동일한 것이라도 무방하다.The luminance constant level detection circuit section 6 may be the same as a circuit widely used in a camera.

휘도일정레벨 검출회로부(6)는 광전소자(7)의 신호에 따라 일정휘도 이하가 되면 레벨의 출력단은 로우(Low)가 되어 트랜지스터(8)를 동작시키게 된다.When the luminance constant level detection circuit unit 6 becomes below a predetermined luminance according to the signal of the photoelectric element 7, the output terminal of the level becomes low to operate the transistor 8.

그러면 트랜지스터(8)의 에미터에 이르러 있는 전류는 콜렉터쪽으로 홀러 램프(9)를 점등시키게 된다.The current reaching the emitter of the transistor 8 then turns on the artillery lamp 9 toward the collector.

이러한 작용으로 램프(9)의 빛이 정보 표시판(13)에 조사되기 때문에 정보표시를 투명창(14)을 통하여 판독할 수 있게 된다.In this way, since the light of the lamp 9 is irradiated to the information display panel 13, the information display can be read through the transparent window 14.

그리고 검출레벨이 일정조도 이상인 경우에는 하이(High)의 출력이 나오기 때문에 트랜지스터(8)가 오프되어 램프점등에 따른 전류의 소모를 방지할 수 있다.When the detection level is higher than a certain level of illumination, the output of high outputs the transistor 8 so that the transistor 8 is turned off, thereby preventing the consumption of the current due to the lamp lighting.

이상 설명한 바와같이 본 고안에 의한 조명장치는 카메라의 셔터버튼을 누름과 동시에 광전소자에 의한 일정 휘도를 빠른 순간에 자동으로 검출하여 판독용 램프를 점등시켜 줌으로서, 보다 빠르고 간편하게 정보표시상태를 판독할 수 있어 순간포착의 촬영을 정확히 할 수 있는 이점이 있다.As described above, the lighting device according to the present invention simultaneously detects a certain luminance by the photoelectric element at the same time as pressing the shutter button of the camera and turns on the reading lamp to read information display state more quickly and easily. There is an advantage in that it is possible to accurately photograph the instant capture.

Claims (1)

카메라의 투시창과 대향배치되는 정보표시판을 갖는 카메라에 있어서, 상기한 정보 표시판(12)에 빛을 조사하는 램프(9)가 트랜지스터(8)를 개재하여 스위치(5)와 연결되며, 상기한 트랜지스터(8)의 베이스는 광전소자(7)를 전단부에 보유하는 휘도일정레벨 검출회로부(6)의 출력단과 연결되어 구성됨을 특징으로 하는 액정정보 표시판의 조명장치.In a camera having an information display panel disposed opposite to a viewing window of a camera, a lamp 9 for irradiating light to the information display panel 12 is connected to a switch 5 via a transistor 8, and the transistor described above. The base of (8) is connected to the output terminal of the luminance constant level detection circuit portion (6) holding the photoelectric element (7) in the front end is configured to illuminate the liquid crystal information display panel.
KR2019900018599U 1990-11-29 1990-11-29 Illumination device for liquid crystal information board KR930004756Y1 (en)

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Application Number Priority Date Filing Date Title
KR2019900018599U KR930004756Y1 (en) 1990-11-29 1990-11-29 Illumination device for liquid crystal information board

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Application Number Priority Date Filing Date Title
KR2019900018599U KR930004756Y1 (en) 1990-11-29 1990-11-29 Illumination device for liquid crystal information board

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KR920010116U KR920010116U (en) 1992-06-17
KR930004756Y1 true KR930004756Y1 (en) 1993-07-23

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