GB1225650A - - Google Patents

Info

Publication number
GB1225650A
GB1225650A GB1225650DA GB1225650A GB 1225650 A GB1225650 A GB 1225650A GB 1225650D A GB1225650D A GB 1225650DA GB 1225650 A GB1225650 A GB 1225650A
Authority
GB
United Kingdom
Prior art keywords
area
lenses
lamp
enclosure
light
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
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 filed Critical
Publication of GB1225650A publication Critical patent/GB1225650A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/095—Traffic lights
    • 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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/08—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light

Landscapes

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

Abstract

1,225,650. Lamp lenses. DORMAN SMITH SWITCHGEAR Ltd. 29 July, 1969 [3 Aug., 1968], No. 37135/68. Heading F4R. [Also in Division G2] A lens 18 for a warning lamp comprises a central light transmitting area 24 adapted to produce a beam of light and a reflex reflecting area 25 surrounding the area 24 and adapted to reflect light impinging on the lamp from outside, the two areas being of different colours. The area 24 is preferably amber in colour and comprises a central bull's eye 27 surrounded by a region which has on its inner surface a plurality of concentric V-sectioned grooves 29 of progressively increasing width and on its outer surface a plurality of concentric rings of shallow cushion-shaped protrusions 30 which have a radial width corresponding to four of the grooves 29. The area 25 is preferably red and has a smooth outer surface and an inner surface covered with prismatic indentations 26. The periphery of the lens includes two larger flangesections 19 formed with recesses 22 and two smaller flange-sections 20 formed with ribs 21 so that two similar lenses can be interfitted to form an enclosure for the light source (not shown). The lenses combine to form a spigot 14 which can be connected to a battery housing (11, not shown) by means of a bayonet joint. The enclosure may be revolved about its axis.
GB1225650D 1968-08-03 1968-08-03 Expired GB1225650A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3713568 1968-08-03

Publications (1)

Publication Number Publication Date
GB1225650A true GB1225650A (en) 1971-03-17

Family

ID=10394022

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1225650D Expired GB1225650A (en) 1968-08-03 1968-08-03

Country Status (1)

Country Link
GB (1) GB1225650A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102537827A (en) * 2010-12-31 2012-07-04 海洋王照明科技股份有限公司 Anti-glare lampshade and illuminating lamp
CN102563517A (en) * 2010-12-31 2012-07-11 海洋王照明科技股份有限公司 Transparent lamp shade and illuminating lamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102537827A (en) * 2010-12-31 2012-07-04 海洋王照明科技股份有限公司 Anti-glare lampshade and illuminating lamp
CN102563517A (en) * 2010-12-31 2012-07-11 海洋王照明科技股份有限公司 Transparent lamp shade and illuminating lamp

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees