KR950022787A - Aperture of the shooting device - Google Patents

Aperture of the shooting device Download PDF

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Publication number
KR950022787A
KR950022787A KR1019930026837A KR930026837A KR950022787A KR 950022787 A KR950022787 A KR 950022787A KR 1019930026837 A KR1019930026837 A KR 1019930026837A KR 930026837 A KR930026837 A KR 930026837A KR 950022787 A KR950022787 A KR 950022787A
Authority
KR
South Korea
Prior art keywords
filter
aperture device
aperture
transmittance
light
Prior art date
Application number
KR1019930026837A
Other languages
Korean (ko)
Inventor
최환문
Original Assignee
배순훈
대우전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019930026837A priority Critical patent/KR950022787A/en
Priority to JP6304036A priority patent/JPH07281250A/en
Priority to CN94114090A priority patent/CN1115385A/en
Publication of KR950022787A publication Critical patent/KR950022787A/en

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS 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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/02—Diaphragms

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Diaphragms For Cameras (AREA)
  • Blocking Light For Cameras (AREA)

Abstract

본 발명은 캠코더나 스틸카메라 등과 같은 촬영기기의 조리개장치를 개시한다. 개시된 조리개장치는, 상부 혹은 하부 날개의 하단부나 상단부에 그 접착부분에서 광량 조절공의 중심부분으로 갈수록 투과율이 순차적으로 증가되도록 구획된 ND 필터가 부착되어 구성된다. 따라서 화면 열화의 요인인 광의 회절을 극소화 시킬 수 있으며, 광량 조절이 용이하고, 보다 밝은 화상을 얻을 수 있게 된다.The present invention discloses an aperture device for an imaging device such as a camcorder or still camera. The disclosed aperture device is configured by attaching an ND filter partitioned so that the transmittance is sequentially increased from the adhesive portion to the central portion of the light amount adjusting hole at the lower end or the upper end of the upper or lower wing. Therefore, it is possible to minimize the diffraction of light, which is a factor of screen deterioration, to easily control the amount of light, and to obtain a brighter image.

Description

촬영기기의 조리개장치Aperture of the shooting device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도 및 제2도는 종래 촬영기기의 조리개장치를 도시한 개략도,1 and 2 are schematic views showing an aperture device of a conventional photographing apparatus;

제3도는 본 발명에 따른 촬영기기의 조리개장치를 도시한 개략도.3 is a schematic view showing an aperture device of a photographing apparatus according to the present invention.

Claims (5)

그 하단부와 상단부가 상호 중첩되어 광량 조절공을 형성하는 상부 날개와 상부 날개로 이루어진 조리개를 구비하여 된 촬영기기의 조리개장치에 있어서, 상기 조리개에 일측으로부터 타측으로 갈수록 투과율이 순차적으로 다르게 구획된 ND 필터가 부착된 것을 특징으로 하는 촬영기기의 조리개장치.In the diaphragm of the photographing apparatus having an aperture consisting of an upper wing and an upper wing that overlaps the lower end and the upper end to form a light adjustment hole, the ND partitioned sequentially differently transmittance from one side to the other side An aperture device of a photographing apparatus, characterized in that the filter is attached. 제1항에 있어서, 상기 ND 필터는 하부 날개의 상단부에 부착되는 것을 특징으로 하는 촬영기기의 조리개장치.The aperture device of claim 1, wherein the ND filter is attached to an upper end of a lower wing. 제1항에 있어서, 상기 ND 필터는 상부 날개의 하단부에 부착되는 것을 특징으로 하는 촬영기기의 조리개장치.The aperture device of claim 1, wherein the ND filter is attached to a lower end of the upper wing. 제1항에 있어서, 상기 ND 필터의 각 투과 영역간의 투과율 차는 0.1%∼20%의 차이로 하는 것을 특징으로 하는 촬영기기의 조리개장치.The aperture device according to claim 1, wherein the difference in transmittance between the transmission areas of the ND filter is 0.1% to 20%. 제1,2,3 항중 적어도 어느 한 항에 있어서, 상기 ND 필터의 투과율 변화는 필터 접합부분에서 광량 조절공의 중심부분으로 갈수록 증가하는 것을 특징으로 하는 촬영기기의 조리개장치.The aperture device according to any one of claims 1, 2 and 3, wherein the change in transmittance of the ND filter increases from the filter joint portion toward the central portion of the light amount adjusting hole. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930026837A 1993-12-08 1993-12-08 Aperture of the shooting device KR950022787A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019930026837A KR950022787A (en) 1993-12-08 1993-12-08 Aperture of the shooting device
JP6304036A JPH07281250A (en) 1993-12-08 1994-12-07 Stop device of optical system
CN94114090A CN1115385A (en) 1993-12-08 1994-12-08 Stop apparatus for an optical system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930026837A KR950022787A (en) 1993-12-08 1993-12-08 Aperture of the shooting device

Publications (1)

Publication Number Publication Date
KR950022787A true KR950022787A (en) 1995-07-28

Family

ID=19370200

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930026837A KR950022787A (en) 1993-12-08 1993-12-08 Aperture of the shooting device

Country Status (3)

Country Link
JP (1) JPH07281250A (en)
KR (1) KR950022787A (en)
CN (1) CN1115385A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002090797A (en) * 2000-09-19 2002-03-27 Canon Inc Light quantity adjusting device, lens device, and image pickup device
EP1445648A4 (en) 2001-10-12 2009-08-05 Canon Kk Light quantity regulating device and optical system having it and photographing device
JP4500487B2 (en) * 2002-10-31 2010-07-14 キヤノン株式会社 Lens device and camera
CN100520557C (en) * 2006-05-23 2009-07-29 佳能株式会社 Optical apparatus

Also Published As

Publication number Publication date
JPH07281250A (en) 1995-10-27
CN1115385A (en) 1996-01-24

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E601 Decision to refuse application