GB2194321B - Lens system - Google Patents

Lens system

Info

Publication number
GB2194321B
GB2194321B GB8717263A GB8717263A GB2194321B GB 2194321 B GB2194321 B GB 2194321B GB 8717263 A GB8717263 A GB 8717263A GB 8717263 A GB8717263 A GB 8717263A GB 2194321 B GB2194321 B GB 2194321B
Authority
GB
United Kingdom
Prior art keywords
lens system
lens
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 - Lifetime
Application number
GB8717263A
Other versions
GB8717263D0 (en
GB2194321A (en
Inventor
George Howard Lloyd
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
Publication of GB8717263D0 publication Critical patent/GB8717263D0/en
Publication of GB2194321A publication Critical patent/GB2194321A/en
Application granted granted Critical
Publication of GB2194321B publication Critical patent/GB2194321B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/12—Combinations of only three kinds of elements
    • F21V13/14—Combinations of only three kinds of elements the elements being filters or photoluminescent elements, reflectors and refractors
    • 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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/02—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using parallel laminae or strips, e.g. of Venetian-blind type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2111/02—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for roads, paths or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
GB8717263A 1986-07-24 1987-07-22 Lens system Expired - Lifetime GB2194321B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868618150A GB8618150D0 (en) 1986-07-24 1986-07-24 Lens system

Publications (3)

Publication Number Publication Date
GB8717263D0 GB8717263D0 (en) 1987-08-26
GB2194321A GB2194321A (en) 1988-03-02
GB2194321B true GB2194321B (en) 1990-03-21

Family

ID=10601657

Family Applications (2)

Application Number Title Priority Date Filing Date
GB868618150A Pending GB8618150D0 (en) 1986-07-24 1986-07-24 Lens system
GB8717263A Expired - Lifetime GB2194321B (en) 1986-07-24 1987-07-22 Lens system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB868618150A Pending GB8618150D0 (en) 1986-07-24 1986-07-24 Lens system

Country Status (1)

Country Link
GB (2) GB8618150D0 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10022713B4 (en) * 2000-05-10 2004-02-05 Osram Opto Semiconductors Gmbh Signaling device for traffic signals
FR2863686B1 (en) * 2003-12-10 2006-02-24 Sagem LED LIGHT EMITTING SIGNAL LIGHT
FR3026821B1 (en) * 2014-10-03 2019-04-05 Psa Automobiles Sa. SIGNALING LIGHT FOR MOTOR VEHICLE AND VEHICLE COMPRISING SUCH A FIRE

Also Published As

Publication number Publication date
GB8717263D0 (en) 1987-08-26
GB2194321A (en) 1988-03-02
GB8618150D0 (en) 1986-09-03

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19980722