KR960013739B1 - Means for regulating optical path of projector - Google Patents

Means for regulating optical path of projector Download PDF

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Publication number
KR960013739B1
KR960013739B1 KR92020368A KR920020368A KR960013739B1 KR 960013739 B1 KR960013739 B1 KR 960013739B1 KR 92020368 A KR92020368 A KR 92020368A KR 920020368 A KR920020368 A KR 920020368A KR 960013739 B1 KR960013739 B1 KR 960013739B1
Authority
KR
South Korea
Prior art keywords
projector
optical path
regulating optical
transforming part
mirror
Prior art date
Application number
KR92020368A
Other languages
Korean (ko)
Other versions
KR940010756A (en
Inventor
Dae-Young Lim
Original Assignee
Daewoo Electronics Co Ltd
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 Daewoo Electronics Co Ltd filed Critical Daewoo Electronics Co Ltd
Priority to KR92020368A priority Critical patent/KR960013739B1/en
Publication of KR940010756A publication Critical patent/KR940010756A/en
Application granted granted Critical
Publication of KR960013739B1 publication Critical patent/KR960013739B1/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
    • G03B21/142—Adjusting of projection optics
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/02—Catoptric systems, e.g. image erecting and reversing system
    • G02B17/023—Catoptric systems, e.g. image erecting and reversing system for extending or folding an optical path, e.g. delay lines
    • 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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/80—Constructional details
    • H10N30/85—Piezoelectric or electrostrictive active materials
    • H10N30/853—Ceramic compositions

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

a substrate(31); a transforming part(33) which contracts or expands in a perpendicular direction, being formed on the substrate(31); a first and second electrodes(35,37) formed on both side of the transforming part(33); a mirror(39) which moves perpendicularly by the contraction or expansion of the transforming part(33), being formed on top of the transforming part(33); and a front mirror(41) which transmits the incident light without reflection, being separated with an air gap on the mirror(39).
KR92020368A 1992-10-31 1992-10-31 Means for regulating optical path of projector KR960013739B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR92020368A KR960013739B1 (en) 1992-10-31 1992-10-31 Means for regulating optical path of projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR92020368A KR960013739B1 (en) 1992-10-31 1992-10-31 Means for regulating optical path of projector

Publications (2)

Publication Number Publication Date
KR940010756A KR940010756A (en) 1994-05-26
KR960013739B1 true KR960013739B1 (en) 1996-10-10

Family

ID=19342285

Family Applications (1)

Application Number Title Priority Date Filing Date
KR92020368A KR960013739B1 (en) 1992-10-31 1992-10-31 Means for regulating optical path of projector

Country Status (1)

Country Link
KR (1) KR960013739B1 (en)

Also Published As

Publication number Publication date
KR940010756A (en) 1994-05-26

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Payment date: 20020930

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