GB1234895A - Improvements in or relating to lighting units - Google Patents

Improvements in or relating to lighting units

Info

Publication number
GB1234895A
GB1234895A GB09323/69A GB1932369A GB1234895A GB 1234895 A GB1234895 A GB 1234895A GB 09323/69 A GB09323/69 A GB 09323/69A GB 1932369 A GB1932369 A GB 1932369A GB 1234895 A GB1234895 A GB 1234895A
Authority
GB
United Kingdom
Prior art keywords
reflector
recess
focus
april
relating
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
GB09323/69A
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.)
VAGBELYSNING AB
Original Assignee
VAGBELYSNING AB
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 VAGBELYSNING AB filed Critical VAGBELYSNING AB
Publication of GB1234895A publication Critical patent/GB1234895A/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
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • 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
    • F21V7/09—Optical design with a combination of different curvatures

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)

Abstract

1,234,895. Lamps. VAGBELYSNING A.B. 16 April, 1969 [23 April, 1968], No. 19323/69. Heading F4R. A street lamp comprises an ellipsoidal reflector 1 having a light source at the proximate focus F1 and a convex, preferably spherical, reflector 2 facing the reflector 1 and formed with at least one concave reflective recess 3. The recess 3 is part of a paraboloidal surface having its focus coincident with the remote focus F2 of the reflector 1 and its axis OX inclined at an angle α to the horizontal so that light reflected by the recess issues as a parallel beam. A clear glass cover may be provided between the outer peripheries of the two reflectors.
GB09323/69A 1968-04-23 1969-04-16 Improvements in or relating to lighting units Expired GB1234895A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE5396/68A SE308699B (en) 1968-04-23 1968-04-23

Publications (1)

Publication Number Publication Date
GB1234895A true GB1234895A (en) 1971-06-09

Family

ID=20266382

Family Applications (1)

Application Number Title Priority Date Filing Date
GB09323/69A Expired GB1234895A (en) 1968-04-23 1969-04-16 Improvements in or relating to lighting units

Country Status (11)

Country Link
US (1) US3609340A (en)
AT (1) AT285739B (en)
BE (1) BE731783A (en)
CH (1) CH501867A (en)
DK (1) DK123732B (en)
FI (1) FI49876C (en)
FR (1) FR2006766A1 (en)
GB (1) GB1234895A (en)
NL (1) NL6906298A (en)
NO (1) NO121457B (en)
SE (1) SE308699B (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1518930A (en) * 1974-10-17 1978-07-26 Lucas Electrical Ltd Lamp assembly
US3983039A (en) * 1975-03-03 1976-09-28 Fusion Systems Corporation Non-symmetrical reflector for ultraviolet curing
FR2368807A2 (en) * 1976-10-21 1978-05-19 Lampes Sa IMPROVEMENT PROVIDED TO A REFLECTOR DEVICE FOR THE CONCENTRATION OF A FLOW OF WAVES
US4112483A (en) * 1976-07-28 1978-09-05 Optical Coating Laboratory, Inc. Lighting fixture and method using multiple reflections
DE2740487C3 (en) * 1977-09-08 1981-06-19 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Electronic flash unit
US4310876A (en) * 1978-06-30 1982-01-12 Small Jr Edward A Lighting fixture and method using multiple reflections
DE2830321C3 (en) * 1978-07-10 1983-02-10 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Electronic flash unit
FR2431090A1 (en) * 1978-07-10 1980-02-08 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh ELECTRONIC FLAT APPARATUS HAVING A REFLECTOR WITH ORIENTABLE ELEMENTS
JPH0670682B2 (en) * 1983-08-19 1994-09-07 日照技研株式会社 Lighting equipment
US4583528A (en) * 1984-11-08 1986-04-22 Jack Bauman Examining device with improved optical coupling between the light source and light conductor
US4669449A (en) * 1986-02-18 1987-06-02 Jack Bauman Submergible laryngoscope metallic housing for fiber optics power source
US4679547A (en) * 1986-02-19 1987-07-14 Jack Bauman Fluid submersible laryngoscope
US4694822A (en) * 1986-04-01 1987-09-22 Jack Bauman Submergible laryngoscope battery housing
US4709312C1 (en) * 1986-06-24 2001-12-11 Ruud Lighting Inc Floodlight with improved reflector system
US5199782A (en) * 1991-05-23 1993-04-06 Glen Co. Breda & Associates, Inc. Illumination system for vanity or the like
US5501651A (en) * 1994-06-13 1996-03-26 Bauman; Jack Fluid submersible laryngoscope preventing electrolytic current flow
SE506827C2 (en) * 1996-06-14 1998-02-16 Electrolux Ab Lighting device in a refrigerator or freezer
JP3256937B2 (en) * 1999-03-25 2002-02-18 スタンレー電気株式会社 Vertical headlamp
JP2001202805A (en) 2000-01-14 2001-07-27 Stanley Electric Co Ltd Lighting fixture
JP5381348B2 (en) * 2009-06-02 2014-01-08 セイコーエプソン株式会社 Light source device, lighting system, projector
DE102009040753A1 (en) * 2009-09-10 2011-03-24 MÜNZ, Christoph reflector assembly

Also Published As

Publication number Publication date
FI49876C (en) 1975-10-10
US3609340A (en) 1971-09-28
BE731783A (en) 1969-10-01
FI49876B (en) 1975-06-30
FR2006766A1 (en) 1970-01-02
AT285739B (en) 1970-11-10
DE1919199B2 (en) 1976-01-15
DK123732B (en) 1972-07-24
DE1919199A1 (en) 1969-11-06
SE308699B (en) 1969-02-24
CH501867A (en) 1971-01-15
NO121457B (en) 1971-03-01
NL6906298A (en) 1969-10-27

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