KR980003782A - Lighting equipment for the projector - Google Patents

Lighting equipment for the projector Download PDF

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Publication number
KR980003782A
KR980003782A KR1019970005472A KR19970005472A KR980003782A KR 980003782 A KR980003782 A KR 980003782A KR 1019970005472 A KR1019970005472 A KR 1019970005472A KR 19970005472 A KR19970005472 A KR 19970005472A KR 980003782 A KR980003782 A KR 980003782A
Authority
KR
South Korea
Prior art keywords
light
lens
projector according
converting
lamp
Prior art date
Application number
KR1019970005472A
Other languages
Korean (ko)
Other versions
KR100200651B1 (en
Inventor
최순철
Original Assignee
김광호
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 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to US08/878,779 priority Critical patent/US5918968A/en
Publication of KR980003782A publication Critical patent/KR980003782A/en
Application granted granted Critical
Publication of KR100200651B1 publication Critical patent/KR100200651B1/en

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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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/206—Control of light source other than position or intensity
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0037—Arrays characterized by the distribution or form of lenses
    • G02B3/0056—Arrays characterized by the distribution or form of lenses arranged along two different directions in a plane, e.g. honeycomb arrangement of lenses
    • 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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2066—Reflectors in illumination beam
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/317—Convergence or focusing systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Projection Apparatus (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

본 발명은 프로젝터용 조명장치에 관한 것으로서, 반사경에 의해 접속되지 않고 외부로 발산되어 버리는 광을 접속하기 위하여, 광을 출사하는 램프; 상기 램프로부터 출사된 광을 반사하여 평행광으로 바꾸는 포물반사경; 상기 평행광은 굴절시켜 집속시키고, 상기 램프로부터 출사되어 상기 포물반사경에 의해 반사되지 않고 직접 입사하는 광은 평행광으로 바꾸는 볼록렌즈; 상기 볼록렌즈에 의해 집속된 광을 일정한 초점으로 집속시키는 제2렌즈로 구성된 복합렌즈; 및 상기 초점으로 집속된 광을 평행광으로 바꾸는 이미지 렌즈를 포함하는 프로젝터용 조명장치가 개시되어 있다. 이와 같은 조명장치를 채용함으로써 프로젝터의 광 이용 효율을 높일 수 있다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting apparatus for a projector, comprising: a lamp for emitting light in order to connect light that is emitted outside without being connected by a reflector; A parabolic reflector reflecting light emitted from the lamp and converting the light into parallel light; A convex lens for refracting and focusing the parallel light, and converting the light emitted from the lamp and not directly reflected by the parabolic reflector into parallel light; A composite lens composed of a second lens for focusing the light focused by the convex lens at a constant focus; And an image lens for converting the light focused at the focal point into parallel light. By employing such a lighting device, the light utilization efficiency of the projector can be improved.

Description

프로젝터용 조명장치Lighting equipment for the projector

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

제2도는 본 발명에 따른 프로젝터용 조명장치를 나타낸 도면.2 is a view showing a lighting device for a projector according to the present invention.

제3도는 제2도에 도시된 프로젝터용 조명장치에 채용되는 복합렌즈의 분해사시도.FIG. 3 is an exploded perspective view of the compound lens employed in the projector lighting apparatus shown in FIG. 2. FIG.

제4도는 제2도에 도시된 프로젝터용 조명장치에 있어서, 제1렌즈를 경유하는 광의 광경로를 나타내 보인 도면.4 is a view showing an optical path of light passing through a first lens in the projector lighting apparatus shown in FIG. 2;

제5도는 제2도에 도시된 프로젝터용 조명장치에 있어서, 제2렌즈를 경유하는 광의 광경로를 나타내 보인 도면.FIG. 5 is a view showing an optical path of light passing through a second lens in the projector lighting apparatus shown in FIG. 2;

Claims (8)

광을 출사하는 램프; 상기 램프로부터 출사된 광을 반사하여 평행광으로 바꾸는 포물반사경; 상기 평행광은 굴절시켜 집속시키고, 상기 램프로부터 출사되어 상기 포물반사경에 의해 반사되지 않고 직접 입사하는 광은 평행광으로 바꾸는 볼록렌즈; 상기 볼록렌즈에 의해 집속된 광을 일정한 초점으로 집속시키는 제1렌즈와, 상기 볼록렌즈에 의해 바뀐 평행광을 상기 초점으로 집속시키는 제2렌즈로 구성된 복합렌즈; 및 상기 초점으로 집속된 광을 평행광으로 바꾸는 이미지렌즈를 포함하는 것을 특징으로 하는 프로젝터용 조명장치.A lamp for emitting light; A parabolic reflector reflecting light emitted from the lamp and converting the light into parallel light; A convex lens for refracting and focusing the parallel light, and converting the light emitted from the lamp and not directly reflected by the parabolic reflector into parallel light; A composite lens composed of a first lens for focusing the light focused by the convex lens at a constant focus and a second lens for focusing the parallel light changed by the convex lens at the focus; And an image lens for converting the light focused at the focus into parallel light. 제1항에 있어서, 상기 초점으로 집속된 광이 통과하는 슬릿을 더 포함하는 것을 특징으로 하는 프로젝터용 조명장치.The illuminating device for a projector according to claim 1, further comprising a slit through which light focused at the focus passes. 제1항에 있어서, 상기 볼록렌즈의 적어도 한 면은 비구면인 것을 특징으로 하는 프로젝터용 조명장치.The illuminating device for a projector according to claim 1, wherein at least one surface of the convex lens is an aspherical surface. 제1항에 있어서, 상기 제1렌즈는 적어도 한 면이 비구면이며, 전체적으로 광을 발산하는 오목렌즈인 것을 특징으로 하는 프로젝터용 조명장치.The illuminating device for a projector according to claim 1, wherein at least one surface of the first lens is an aspherical surface and a concave lens that emits light as a whole. 제4항에 있어서, 상기 제2렌즈는 적어도 한 면이 비구면이며, 전체적으로 광을 집속하는 볼록렌즈인 것을 특징으로 하는 프로젝터용 조명장치.The illumination device for a projector according to claim 4, wherein at least one surface of the second lens is an aspherical surface and a convex lens that focuses light as a whole. 제5항에 있어서, 상기 제2렌즈는 그 중앙에 구멍이 형성된 도우넛 형상이며, 상기 제1렌즈는 상기 구멍에 끼워맞춤 결합되는 것을 특징으로 하는 프로젝터용 조명장치.The illuminating device for a projector according to claim 5, wherein the second lens has a donut shape having a hole formed in the center thereof, and the first lens is fitted into the hole. 제6항에 있어서, 상기 제1렌즈와 상기 제2렌즈는 일체로 형성된 것을 특징으로 하는 프로젝터용 조명장치.The illuminating device for a projector according to claim 6, wherein the first lens and the second lens are integrally formed. 제1항에 있어서, 상기 제2렌즈는 적어도 한 면이 비구면이며, 전체적으로 광을 집속하는 볼록렌즈인 것을 특징으로 하는 프로젝터용 조명장치.The illuminating device for a projector according to claim 1, wherein at least one surface of the second lens is an aspherical surface and a convex lens that focuses light as a whole. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019970005472A 1996-06-28 1997-02-22 Lighting apparatus for projector KR100200651B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US08/878,779 US5918968A (en) 1996-06-28 1997-06-19 Illuminating device for projector

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR25206 1993-01-21
KR101996025206 1996-06-28
KR19960025206 1996-06-28

Publications (2)

Publication Number Publication Date
KR980003782A true KR980003782A (en) 1998-03-30
KR100200651B1 KR100200651B1 (en) 1999-06-15

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020005938A (en) * 2000-07-11 2002-01-18 윤종용 A illumination equipment with nonspherical ellipsoid type Light Source Reflector and concave lense to maximize lighting efficiency
KR100619039B1 (en) 2004-07-06 2006-09-01 삼성전자주식회사 Illumination lens system and projection system employing the same

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