GB763376A - Improvements relating to vehicle lamps - Google Patents

Improvements relating to vehicle lamps

Info

Publication number
GB763376A
GB763376A GB13722/54A GB1372254A GB763376A GB 763376 A GB763376 A GB 763376A GB 13722/54 A GB13722/54 A GB 13722/54A GB 1372254 A GB1372254 A GB 1372254A GB 763376 A GB763376 A GB 763376A
Authority
GB
United Kingdom
Prior art keywords
mirror
focus
parallel beam
ellipsoid
parabolic
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
GB13722/54A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB13722/54A priority Critical patent/GB763376A/en
Publication of GB763376A publication Critical patent/GB763376A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/36—Combinations of two or more separate reflectors
    • F21S41/365—Combinations of two or more separate reflectors successively reflecting the light

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

763,376. Vehicle reflectors. HINDS, R. P. H. April 26, 1955 [May 11, 1954], No. 13722/54. Class 75(2) A vehicle lamp comprises a rearwardly facing front reflector in the form of a surface of revolution about the principal axis of the lamp and disposed on the forward :side of a light source on that axis and a forwardly facing reflector having the same focal point as the front reflector and throwing forward in a parallel beam light received from the front reflector, either below the front reflector or through an aperture therein. As shown in Fig. 2, the front reflector 7 of parabolic form receives a parallel beam of light reflected from a parabolic mirror 1 whose focus is at the source 2 of light the mirror 7 redirecting the beam through its focus 8 to be again reflected at a parabolic or spherical concave or convex mirror 9 or 10 of short focal length relative to the focal length of the mirror 7 and disposed with its focus at the focus 3 of mirror 7 so that a parallel beam passes through a central aperture in the mirror 7. The central portion 6 of mirror 1 is non-reflecting. The upper half only of mirror 7 may be used, dispensing with the mirror 9, 10 and disposing mirror 1 with its focus coinciding with the focus of mirror 7 at the light source. Alternatively the semicircular parabolic mirror 9 directs the final beam beneath the semi-circular parabolic mirror 7. The front mirror 7 may be an ellipsoid 11, Fig. 3, with the light source 2 at the front focus of the ellipsoid and with the mirror 9 or 10 disposed with its focus at the rear focus 8 of the elliosoid, the final parallel beam being directed..through a central aperture in the front mirror 11. Alternatively the mirror 9 or 10 may be replaced by a plane mirror located on the minor axial plane of the ellipsoid, the final parallel beam being directed through an aperture in the plane mirror from a spherical mirror at the apex of the ellipsoid. In another alternative, two mirrors such as 7 and 9 or 10 may be disposed with the common focus at such point on the major axis of the ellipsoid as to direct the final parallel beam through the central aperture in the mirror 7, the central apical portion of the ellipsoidal mirror being then made non-reflecting.
GB13722/54A 1954-05-11 1954-05-11 Improvements relating to vehicle lamps Expired GB763376A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB13722/54A GB763376A (en) 1954-05-11 1954-05-11 Improvements relating to vehicle lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB13722/54A GB763376A (en) 1954-05-11 1954-05-11 Improvements relating to vehicle lamps

Publications (1)

Publication Number Publication Date
GB763376A true GB763376A (en) 1956-12-12

Family

ID=10028181

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13722/54A Expired GB763376A (en) 1954-05-11 1954-05-11 Improvements relating to vehicle lamps

Country Status (1)

Country Link
GB (1) GB763376A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3443086A (en) * 1967-05-16 1969-05-06 Giannini Scient Corp Beam-forming system
US3453425A (en) * 1965-10-21 1969-07-01 Sidney L Whitaker Structure for concentrating radiant energy
US4755918A (en) * 1987-04-06 1988-07-05 Lumitex, Inc. Reflector system
US4897771A (en) * 1987-11-24 1990-01-30 Lumitex, Inc. Reflector and light system
EP1152188A3 (en) * 2000-04-05 2004-01-02 Philips Intellectual Property & Standards GmbH Lighting assembly and method of operating the same
EP1266173B1 (en) * 2000-03-21 2009-08-19 Wavien, Inc. Optical systems having retro-reflectors
EP2921411A1 (en) * 2014-03-18 2015-09-23 Goodrich Corporation Anti-collision light and light system
CN107906470A (en) * 2017-11-29 2018-04-13 马瑞利汽车零部件(芜湖)有限公司 The vehicle signal lamp system of annular illumination
ES2732764A1 (en) * 2018-05-24 2019-11-25 Seat Sa Lighting module for a vehicle (Machine-translation by Google Translate, not legally binding)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3453425A (en) * 1965-10-21 1969-07-01 Sidney L Whitaker Structure for concentrating radiant energy
US3443086A (en) * 1967-05-16 1969-05-06 Giannini Scient Corp Beam-forming system
US4755918A (en) * 1987-04-06 1988-07-05 Lumitex, Inc. Reflector system
EP0286333A2 (en) * 1987-04-06 1988-10-12 Lumitex Inc. Reflector system
EP0286333A3 (en) * 1987-04-06 1989-11-02 Lumitex Inc. Reflector system
US4897771A (en) * 1987-11-24 1990-01-30 Lumitex, Inc. Reflector and light system
EP1266173B1 (en) * 2000-03-21 2009-08-19 Wavien, Inc. Optical systems having retro-reflectors
EP1152188A3 (en) * 2000-04-05 2004-01-02 Philips Intellectual Property & Standards GmbH Lighting assembly and method of operating the same
EP2921411A1 (en) * 2014-03-18 2015-09-23 Goodrich Corporation Anti-collision light and light system
US9279562B2 (en) 2014-03-18 2016-03-08 Goodrich Corporation Systems and methods for anti-collision lights
EP3135590A1 (en) * 2014-03-18 2017-03-01 Goodrich Corporation Systems and methods for anti-collision lights
CN107906470A (en) * 2017-11-29 2018-04-13 马瑞利汽车零部件(芜湖)有限公司 The vehicle signal lamp system of annular illumination
ES2732764A1 (en) * 2018-05-24 2019-11-25 Seat Sa Lighting module for a vehicle (Machine-translation by Google Translate, not legally binding)

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