KR930013857A - Condensing optics of the projector - Google Patents

Condensing optics of the projector Download PDF

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Publication number
KR930013857A
KR930013857A KR1019910022850A KR910022850A KR930013857A KR 930013857 A KR930013857 A KR 930013857A KR 1019910022850 A KR1019910022850 A KR 1019910022850A KR 910022850 A KR910022850 A KR 910022850A KR 930013857 A KR930013857 A KR 930013857A
Authority
KR
South Korea
Prior art keywords
film
illumination light
liquid crystal
thin
projector
Prior art date
Application number
KR1019910022850A
Other languages
Korean (ko)
Inventor
최순철
Original Assignee
강진구
삼성전자 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 강진구, 삼성전자 주식회사 filed Critical 강진구
Priority to KR1019910022850A priority Critical patent/KR930013857A/en
Publication of KR930013857A publication Critical patent/KR930013857A/en

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Abstract

이 발명은 박막투과형 액정소자 또는 화상이 기록된 투영필름을 투과하면서 변조되어 투사렌즈에 의해 스크린에 확대투사되는 조명광의 집광효율이 향상되도록 광축으로부터 높이가 증가됨에 따라 굴절율이 증가하는 투명판을 설치함으로써 점유공간이 작아 제품을 소형화 할 수 있도록 한 프로젝터의 집광광학 장치에 관한 것으로서, 상기 박막 투과형 액정소자 또는 투명필름과 상기 조명광원사이의 광축상의 공간에 상기 투명판이 설치된 것이다.The present invention provides a transparent plate whose refractive index increases as the height is increased from the optical axis so that the light collecting efficiency of the illumination light modulated while being transmitted through the thin-film transmissive liquid crystal element or the image is transmitted while being projected onto the screen by the projection lens. The present invention relates to a condensing optical device of a projector, which enables a product to be miniaturized by having a small occupied space. The transparent plate is installed in a space on an optical axis between the thin-film transmissive liquid crystal device or a transparent film and the illumination light source.

Description

프로젝터의 집광광학장치Condensing optics of the projector

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제3도는 이 발명에 따른 프로젝터의 집광광학장치를 개략적으로 나타낸 도면이다.3 is a view schematically showing a light converging optical device of a projector according to the present invention.

Claims (2)

조명광원에서 출사된 조명광이 박막투과형 액정소자 또는 화상이 기록된 투명필름을 투과하면서 변조되어 투사렌즈에 의해 스크린에 확대투사되는 프로젝터의 집광광학장치에 있어서, 상기 조명광의 집광효율을 향상시키기 위하여 상기 박막투과형 액정소자 또는 화상이 기록된 투명필름(33)과 상기 조명광원(30)사이의 광축상의 공간에 광축으로부터 높이가 증가됨에 따라 굴절율이 커지는 투명판(32)이 설치된 프로젝터의 집광광학장치.In the condensing optical device of the projector, the illumination light emitted from the illumination light source is modulated while passing through the thin-film transmissive liquid crystal device or the transparent film on which the image is recorded and projected on the screen by the projection lens, in order to improve the condensing efficiency of the illumination light. Condensing optical device of a projector provided with a transparent plate (32) having a high refractive index as the height increases from the optical axis in the space between the thin film transmission liquid crystal element or the transparent film (33) on which the image is recorded and the illumination light source (30). 제1항에 있어서, 상기 투명판(32)은 상기 박막투과형 액정소자 또는 화상이 기록된 투명필름(33)에 근접하여 설치되는 프로젝터의 집광광학장치.The condensing optical device of claim 1, wherein the transparent plate is provided in close proximity to the thin-film transmissive liquid crystal device or the transparent film on which an image is recorded. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910022850A 1991-12-13 1991-12-13 Condensing optics of the projector KR930013857A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910022850A KR930013857A (en) 1991-12-13 1991-12-13 Condensing optics of the projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910022850A KR930013857A (en) 1991-12-13 1991-12-13 Condensing optics of the projector

Publications (1)

Publication Number Publication Date
KR930013857A true KR930013857A (en) 1993-07-22

Family

ID=67356321

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910022850A KR930013857A (en) 1991-12-13 1991-12-13 Condensing optics of the projector

Country Status (1)

Country Link
KR (1) KR930013857A (en)

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