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FR2422107A1 - Photographic illuminating system with reflector - has ellipsoidal reflector with halogen lamp displaced along optical axis - Google Patents

Photographic illuminating system with reflector - has ellipsoidal reflector with halogen lamp displaced along optical axis

Info

Publication number
FR2422107A1
FR2422107A1 FR7908495A FR7908495A FR2422107A1 FR 2422107 A1 FR2422107 A1 FR 2422107A1 FR 7908495 A FR7908495 A FR 7908495A FR 7908495 A FR7908495 A FR 7908495A FR 2422107 A1 FR2422107 A1 FR 2422107A1
Authority
FR
France
Prior art keywords
reflector
optical axis
halogen lamp
lamp
displaced along
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.)
Granted
Application number
FR7908495A
Other languages
French (fr)
Other versions
FR2422107B3 (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.)
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
Publication of FR2422107A1 publication Critical patent/FR2422107A1/en
Application granted granted Critical
Publication of FR2422107B3 publication Critical patent/FR2422107B3/fr
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

The film and photographic lighting arrangement has an ellipsoidal reflector and an electrical lamp. The lamp can be adjusted along the optical axis. The reflector curvature is specified by a formula. The lamp and reflector can be shifted relative to each other a max. of 15 mm. along the optical axis. A halogen incandescent filament lamp is used. The system is displaced dependent on the use of a telescopic objective or wide angle objective in the camera.
FR7908495A 1978-04-07 1979-04-04 Photographic illuminating system with reflector - has ellipsoidal reflector with halogen lamp displaced along optical axis Granted FR2422107A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2815171A DE2815171C2 (en) 1978-04-07 1978-04-07 Film and photo recording light

Publications (2)

Publication Number Publication Date
FR2422107A1 true FR2422107A1 (en) 1979-11-02
FR2422107B3 FR2422107B3 (en) 1982-02-05

Family

ID=6036440

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7908495A Granted FR2422107A1 (en) 1978-04-07 1979-04-04 Photographic illuminating system with reflector - has ellipsoidal reflector with halogen lamp displaced along optical axis

Country Status (5)

Country Link
JP (2) JPS54139723A (en)
DE (1) DE2815171C2 (en)
FR (1) FR2422107A1 (en)
IT (1) IT1117648B (en)
SE (1) SE435869B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0120549A1 (en) * 1982-04-28 1984-10-03 John Anderson Oram Lamp unit

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3000594A1 (en) * 1980-01-09 1981-07-16 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München FILM AND PHOTO RECORDING LAMP
DE3027774A1 (en) * 1980-07-22 1982-02-18 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München REFLECTOR FOR ILLUMINATING A SURFACE

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1984432U (en) * 1967-09-16 1968-04-25 Boehme Co Dr Ing CINEMA LIGHT.
US3798668A (en) * 1972-10-05 1974-03-19 Bell & Howell Co Camera light

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0120549A1 (en) * 1982-04-28 1984-10-03 John Anderson Oram Lamp unit

Also Published As

Publication number Publication date
SE435869B (en) 1984-10-22
DE2815171A1 (en) 1979-10-18
IT1117648B (en) 1986-02-17
SE7903101L (en) 1979-10-08
JPS54139723A (en) 1979-10-30
IT7967740A0 (en) 1979-04-06
JPS63157723U (en) 1988-10-17
DE2815171C2 (en) 1987-03-05
FR2422107B3 (en) 1982-02-05

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