ES8609665A1 - Illumination system reflector. - Google Patents

Illumination system reflector.

Info

Publication number
ES8609665A1
ES8609665A1 ES545193A ES545193A ES8609665A1 ES 8609665 A1 ES8609665 A1 ES 8609665A1 ES 545193 A ES545193 A ES 545193A ES 545193 A ES545193 A ES 545193A ES 8609665 A1 ES8609665 A1 ES 8609665A1
Authority
ES
Spain
Prior art keywords
reflector
axis
lamp
uniformity
theta
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.)
Expired
Application number
ES545193A
Other languages
Spanish (es)
Other versions
ES545193A0 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Raytheon Co
Original Assignee
Hughes Aircraft Co
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 Hughes Aircraft Co filed Critical Hughes Aircraft Co
Publication of ES8609665A1 publication Critical patent/ES8609665A1/en
Publication of ES545193A0 publication Critical patent/ES545193A0/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/08—Optical design with elliptical curvature
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B9/00—Simulators for teaching or training purposes
    • G09B9/02—Simulators for teaching or training purposes for teaching control of vehicles or other craft
    • G09B9/08—Simulators for teaching or training purposes for teaching control of vehicles or other craft for teaching control of aircraft, e.g. Link trainer
    • G09B9/30—Simulation of view from aircraft
    • G09B9/308—Simulation of view from aircraft by LCD, gas plasma display or electroluminescent display

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Plasma & Fusion (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Projection Apparatus (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

An illumination system reflector (18) which provides maximum energy to an aperture (25) with high uniformity and at high efficiencies, the reflector (18) being particularly adapted for use in liquid crystal light valve projection systems. A discharge lamp (34) is utilized in conjunction with an elliptical reflector (18), the axis of the reflector between the primary and secondary focus being tilted at an angle ( theta ) to the lamp axis. The axis of the ellipse (22) is displaced from the lamp axis a predetermined amount (DH), the combination of tilt ( theta ) and displacement (DH) being effective to increase illumination uniformity and efficiency at the aperture (25). Other system parameters, such as throw distance (CTHRO) and cone angle ( alpha ) also affect uniformity and efficiency for a typical design in which the parameters are selected to provide an optimized system being disclosed. A computer program simulation may be utilized for parameter selection. The vertical displacement (DH) parameter is shown to be related to the lamp envelope dimensions.
ES545193A 1984-07-16 1985-07-15 Illumination system reflector. Expired ES8609665A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63128184A 1984-07-16 1984-07-16

Publications (2)

Publication Number Publication Date
ES8609665A1 true ES8609665A1 (en) 1986-07-16
ES545193A0 ES545193A0 (en) 1986-07-16

Family

ID=24530535

Family Applications (1)

Application Number Title Priority Date Filing Date
ES545193A Expired ES8609665A1 (en) 1984-07-16 1985-07-15 Illumination system reflector.

Country Status (9)

Country Link
EP (1) EP0188541A1 (en)
JP (1) JPS61502711A (en)
KR (1) KR860700283A (en)
AU (1) AU569404B2 (en)
CA (1) CA1243644A (en)
ES (1) ES8609665A1 (en)
IL (1) IL75787A (en)
NO (1) NO860827L (en)
WO (1) WO1986000685A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4950059A (en) * 1988-10-11 1990-08-21 General Electric Company Combination lamp and integrating sphere for efficiently coupling radiant energy from a gas discharge to a lightguide
USRE34492E (en) * 1988-10-11 1993-12-28 General Electric Company Combination lamp and integrating sphere for efficiently coupling radiant energy from a gas discharge to a lightguide
FR2642209B1 (en) * 1989-01-24 1994-07-01 Loire Electronique LIGHTING DEVICE FOR LIQUID CRYSTAL SCREEN
US5640284A (en) * 1992-09-11 1997-06-17 Nikon Corporation Optical reflector, illumination optical system, light source system and illumination optical apparatus
GB9421598D0 (en) * 1994-10-25 1994-12-14 Brookfield Michael Video projection system
US20100259731A1 (en) 2007-11-06 2010-10-14 Koninklijke Philips Electronics N.V. Illumination system, high-pressure discharge lamp and image projection system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3689760A (en) * 1971-01-25 1972-09-05 Mattel Inc Efficient reflector for a projector
US3720460A (en) * 1971-04-19 1973-03-13 Optical Radiation Corp Projection light source and optical system
US4066887A (en) * 1976-10-27 1978-01-03 Maurice Levis Segmented sectional reflection for the projection of light beams and its method of production
DE3228575A1 (en) * 1982-07-30 1984-02-02 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Structural unit consisting of an ellipsoid reflector and a halogen incandescent lamp

Also Published As

Publication number Publication date
IL75787A (en) 1992-11-15
NO860827L (en) 1986-03-05
AU569404B2 (en) 1988-01-28
JPS61502711A (en) 1986-11-20
KR860700283A (en) 1986-08-01
WO1986000685A1 (en) 1986-01-30
EP0188541A1 (en) 1986-07-30
AU4546085A (en) 1986-02-10
ES545193A0 (en) 1986-07-16
IL75787A0 (en) 1985-11-29
CA1243644A (en) 1988-10-25

Similar Documents

Publication Publication Date Title
US4218727A (en) Luminaire
CA1141733A (en) Reflector system having sharp light cutoff characteristics
CA1181728A (en) Luminaire adapted for horizontal and vertical operation
US4488208A (en) Low brightness lens for circular fluorescent lamps
ATE166443T1 (en) OPTICAL SYSTEM WITH A TOROID-SHAPED CONCAVE REFLECTOR FOR CONCENTRATING AND COLLECTING LIGHT.
US4280170A (en) Luminaire
US6027231A (en) Luminaire assembly
ES8609665A1 (en) Illumination system reflector.
AU1147900A (en) Lighting device
US4355350A (en) Reflector for use in an artificial lighting device
US4386392A (en) Lighting unit for providing indirect light of uniform intensity
CN211040650U (en) L ED lamp capable of preventing glare
GB531868A (en) Improvements in and relating to luminairs
US2732488A (en) wince
CN209511795U (en) The signal lamp of railway signal
CN113606506A (en) Polarized lens LED lamp
ES286202U (en) Anti-glare fog lamps
CN104534329B (en) LED remote illumination optical alignment system
EP0326420A2 (en) Improvements in or relating to lamp reflectors
CN214425752U (en) Lighting device
JPH08138413A (en) Hid floodlight luminaire
CN2289950Y (en) Secondary reflecting cup lamp base
CN209445276U (en) A kind of airborne lamps and lanterns secondary optics structure based on total reflection with orientation dioptric system
RU1819339C (en) Lighting device
ES485436A1 (en) Optical device affording a rigorous control of luminance with high efficiency, and lighting fixture comprising such a device.