DE3228575C2 - - Google Patents

Info

Publication number
DE3228575C2
DE3228575C2 DE19823228575 DE3228575A DE3228575C2 DE 3228575 C2 DE3228575 C2 DE 3228575C2 DE 19823228575 DE19823228575 DE 19823228575 DE 3228575 A DE3228575 A DE 3228575A DE 3228575 C2 DE3228575 C2 DE 3228575C2
Authority
DE
Germany
Prior art keywords
ellipse
coordinate system
size
course
incandescent lamp
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 - Fee Related
Application number
DE19823228575
Other languages
German (de)
English (en)
Other versions
DE3228575A1 (de
Inventor
Peter Dipl.-Ing. 8045 Ismaning De Rakitsch
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Priority to DE19823228575 priority Critical patent/DE3228575A1/de
Publication of DE3228575A1 publication Critical patent/DE3228575A1/de
Application granted granted Critical
Publication of DE3228575C2 publication Critical patent/DE3228575C2/de
Granted legal-status Critical Current

Links

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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Projection Apparatus (AREA)
  • Optical Elements Other Than Lenses (AREA)
DE19823228575 1982-07-30 1982-07-30 Baueinheit, bestehend aus ellipsoidreflektor und halogengluehlampe Granted DE3228575A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19823228575 DE3228575A1 (de) 1982-07-30 1982-07-30 Baueinheit, bestehend aus ellipsoidreflektor und halogengluehlampe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823228575 DE3228575A1 (de) 1982-07-30 1982-07-30 Baueinheit, bestehend aus ellipsoidreflektor und halogengluehlampe

Publications (2)

Publication Number Publication Date
DE3228575A1 DE3228575A1 (de) 1984-02-02
DE3228575C2 true DE3228575C2 (OSRAM) 1993-04-15

Family

ID=6169763

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823228575 Granted DE3228575A1 (de) 1982-07-30 1982-07-30 Baueinheit, bestehend aus ellipsoidreflektor und halogengluehlampe

Country Status (1)

Country Link
DE (1) DE3228575A1 (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61502711A (ja) * 1984-07-16 1986-11-20 ヒユ−ズ・エアクラフト・カンパニ− 照射装置用反射鏡

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1278690A (en) * 1969-12-17 1972-06-21 Thorn Lighting Ltd Improvements relating to screen projectors
US4066887A (en) * 1976-10-27 1978-01-03 Maurice Levis Segmented sectional reflection for the projection of light beams and its method of production

Also Published As

Publication number Publication date
DE3228575A1 (de) 1984-02-02

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8125 Change of the main classification

Ipc: F21V 7/08

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee