GB611032A - Improvements in directional beam electric lamps - Google Patents

Improvements in directional beam electric lamps

Info

Publication number
GB611032A
GB611032A GB2056/45A GB205645A GB611032A GB 611032 A GB611032 A GB 611032A GB 2056/45 A GB2056/45 A GB 2056/45A GB 205645 A GB205645 A GB 205645A GB 611032 A GB611032 A GB 611032A
Authority
GB
United Kingdom
Prior art keywords
lenses
directional beam
lens
bulb
beam electric
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
GB2056/45A
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.)
Raleigh Cycle Co Ltd
Original Assignee
Raleigh Cycle Co Ltd
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 Raleigh Cycle Co Ltd filed Critical Raleigh Cycle Co Ltd
Priority to GB2056/45A priority Critical patent/GB611032A/en
Publication of GB611032A publication Critical patent/GB611032A/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
    • F21S41/50—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
    • F21S41/55—Attachment thereof
    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/28—Cover glass
    • 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
    • F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated

Landscapes

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

Abstract

611,032. Lamp lenses. RALEIGH CYCLE CO., Ltd., and BROWN W. Jan. 25, 1945. No. 2056. [Class 75 (ii)] A directional beam electric lamp comprises a right circular conical metal reflector 8 and a lens system consisting of an annular lens 4 of symmetrical' plano-curvex section moulded integrally with a planoconvex or convex lens 3 closing the forward end of the annular lens cavity, the two lenses having a common principle focus and forming a substantially cylindrical housing for an electric bulb 1. The lenses may be adjustably secured in the reflector hub 8a or the bulb 1 may be axially adjustable in the lenses. A front glass constructed as described in Specification 602,171 may be provided,.
GB2056/45A 1945-01-25 1945-01-25 Improvements in directional beam electric lamps Expired GB611032A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2056/45A GB611032A (en) 1945-01-25 1945-01-25 Improvements in directional beam electric lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2056/45A GB611032A (en) 1945-01-25 1945-01-25 Improvements in directional beam electric lamps

Publications (1)

Publication Number Publication Date
GB611032A true GB611032A (en) 1948-10-25

Family

ID=9732822

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2056/45A Expired GB611032A (en) 1945-01-25 1945-01-25 Improvements in directional beam electric lamps

Country Status (1)

Country Link
GB (1) GB611032A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0319621A1 (en) * 1987-12-10 1989-06-14 Peter Roger Pearce-Harvey Light source
FR2797676A1 (en) * 1999-08-19 2001-02-23 Fd Eclairage Indirect lighting system outdoor or indoor areas, has narrow beam projectors, in accessible positions, with concave mirrors redirecting light on area to be lit
EP1179706A1 (en) * 2000-08-07 2002-02-13 CATEYE Co., Ltd. Headlight
EP1179705A1 (en) * 2000-08-07 2002-02-13 CATEYE Co., Ltd. Headlight

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0319621A1 (en) * 1987-12-10 1989-06-14 Peter Roger Pearce-Harvey Light source
FR2797676A1 (en) * 1999-08-19 2001-02-23 Fd Eclairage Indirect lighting system outdoor or indoor areas, has narrow beam projectors, in accessible positions, with concave mirrors redirecting light on area to be lit
WO2001014791A1 (en) * 1999-08-19 2001-03-01 Fd Eclairage Illuminating spotlight projector and lighting installation with offset light source
US6682206B1 (en) 1999-08-19 2004-01-27 Fd Eclairage Illuminating spotlight projector and lighting installation with offset light source
EP1179706A1 (en) * 2000-08-07 2002-02-13 CATEYE Co., Ltd. Headlight
EP1179705A1 (en) * 2000-08-07 2002-02-13 CATEYE Co., Ltd. Headlight
US6527423B2 (en) 2000-08-07 2003-03-04 Cateye Co., Ltd. Headlight
US6726346B2 (en) 2000-08-07 2004-04-27 Cateye Co., Ltd. Headlight

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