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KR940015647A - Realistic Zoom Finder - Google Patents

Realistic Zoom Finder Download PDF

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Publication number
KR940015647A
KR940015647A KR1019920026677A KR920026677A KR940015647A KR 940015647 A KR940015647 A KR 940015647A KR 1019920026677 A KR1019920026677 A KR 1019920026677A KR 920026677 A KR920026677 A KR 920026677A KR 940015647 A KR940015647 A KR 940015647A
Authority
KR
South Korea
Prior art keywords
lens
refractive power
length
positive refractive
zoom finder
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
KR1019920026677A
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Korean (ko)
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KR950011549B1 (en
Inventor
최상경
Original Assignee
이헌조
주식회사 금성사
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Application filed by 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019920026677A priority Critical patent/KR950011549B1/en
Publication of KR940015647A publication Critical patent/KR940015647A/en
Application granted granted Critical
Publication of KR950011549B1 publication Critical patent/KR950011549B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/02—Viewfinders

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lenses (AREA)

Abstract

적어도 1개 이상의 움직이는 렌즈군을 갖고 전체적으로 대물렌즈중 부의 굴절력을 갖는 1매와 정의 굴절력을 갖은 2매 렌즈군을 갖고 광로장을 단축시키기 위해 2매 프리즘을 갖으며, 정의 굴절력을 갖는 접안렌즈 1매로 구성되어 있으며, 이러한 본 발명은 첫째, 광학계가 짧아 소형카메라의 촬영렌즈에 적합하고, 둘째, 구면렌즈가 아닌 비구면 플라스틱렌즈(PLASTIC LENS)를 사용함으로써 구면수차 보정에 의한 상(image)이 선명하며, 셋째, 알다바식은 반사밀러를 렌즈중간에 삽입하여 사용하므로 해상력이 떨어지나 실상식 줌 파인더는 이러한 반사밀러를 사용치 않으므로 재료비 절감은 물론 해상력이 우수하고, 넷째, 프로프리즘(POROPRISM) 2매 사이의 길이 변화에 의한 광로장의 길이를 임의로 바꿀수 있게 되는 이점이 있다.Eyepiece with positive refractive power 1 with at least one moving lens group and with a total of one negative lens of the objective lens and two positive lens power groups with positive refractive power and two prism to shorten the optical path length The present invention is suitable for photographing lenses of small cameras because of its short optical system, and secondly, the image by spherical aberration correction is clear by using a non-spherical plastic lens (PLASTIC LENS). Third, the Aldabar type uses a reflection mirror in the middle of the lens, which reduces resolution. However, the actual zoom finder does not use such a reflection mirror. There is an advantage that can be arbitrarily changed the length of the optical path length by the change in length between.

Description

실상식 줌파인더Realistic Zoom Finder

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

제3도는 본 발명에 의한 줌 파인더의 와이드시 렌즈 구성도 및 광로도, 제4도는 본 발명에 의한 줌 파인더의 텔리시 렌즈 구성도 및 광로도, 제6도는 본 발명의 수차도(텔리시).3 is a wide view lens configuration and optical path diagram of the zoom finder according to the present invention, and FIG. 4 is a telephoto lens configuration and optical path diagram of the zoom finder according to the present invention, and FIG. 6 is aberration diagram (tele) of the present invention. .

Claims (1)

적어도 1개이상의 움직이는 렌즈군을 갖고 전체적으로 대물렌즈 중 부의 굴절력을 갖는 1매와 정의 굴절력을 갖은 2매 렌즈군을 갖고 광로장을 단축시키기 위해 2매 프리즘을 갖으며, 정의 굴절력을 갖는 접안렌즈 1매로 구성됨을 특징으로 하는 실상식 줌 파인더.Eyepiece with positive refractive power 1 with at least one moving lens group, one lens with negative refractive power as a whole and two lens groups with positive refractive power, with two prism to shorten the optical path length Realistic zoom finder characterized by consisting of a hawk. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920026677A 1992-12-30 1992-12-30 Realistic Zoom Finder Expired - Fee Related KR950011549B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920026677A KR950011549B1 (en) 1992-12-30 1992-12-30 Realistic Zoom Finder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920026677A KR950011549B1 (en) 1992-12-30 1992-12-30 Realistic Zoom Finder

Publications (2)

Publication Number Publication Date
KR940015647A true KR940015647A (en) 1994-07-21
KR950011549B1 KR950011549B1 (en) 1995-10-06

Family

ID=19347818

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920026677A Expired - Fee Related KR950011549B1 (en) 1992-12-30 1992-12-30 Realistic Zoom Finder

Country Status (1)

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KR (1) KR950011549B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018212533A1 (en) * 2017-05-18 2018-11-22 주식회사 엘지화학 Low-friction polymerizable composition

Also Published As

Publication number Publication date
KR950011549B1 (en) 1995-10-06

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