GB1184566A - Illuminated Sign. - Google Patents

Illuminated Sign.

Info

Publication number
GB1184566A
GB1184566A GB04595/67A GB1459567A GB1184566A GB 1184566 A GB1184566 A GB 1184566A GB 04595/67 A GB04595/67 A GB 04595/67A GB 1459567 A GB1459567 A GB 1459567A GB 1184566 A GB1184566 A GB 1184566A
Authority
GB
United Kingdom
Prior art keywords
march
illuminated sign
illuminated
lenses
sign
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
GB04595/67A
Inventor
George Edward Pentney
Anthony Howard Yapp
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB04595/67A priority Critical patent/GB1184566A/en
Publication of GB1184566A publication Critical patent/GB1184566A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/02—Simple or compound lenses with non-spherical faces
    • G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved

Abstract

1,184.566. Rear illuminated signs. IMPERIAL CHEMICAL INDUSTRIES Ltd. 18 March, 1968 [30 March, 1967], No. 14595/67. Heading G5C. [Also in Division G2] A sign as described in Specification 1,184,565 has the Fresnel lens formed of two annular lenses, one surrounding the other, lenses having a common boundary 57. Each lens is illuminated by a toroidal-shaped fluorescent lamp.
GB04595/67A 1967-03-30 1967-03-30 Illuminated Sign. Expired GB1184566A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB04595/67A GB1184566A (en) 1967-03-30 1967-03-30 Illuminated Sign.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB04595/67A GB1184566A (en) 1967-03-30 1967-03-30 Illuminated Sign.

Publications (1)

Publication Number Publication Date
GB1184566A true GB1184566A (en) 1970-03-18

Family

ID=10044074

Family Applications (1)

Application Number Title Priority Date Filing Date
GB04595/67A Expired GB1184566A (en) 1967-03-30 1967-03-30 Illuminated Sign.

Country Status (1)

Country Link
GB (1) GB1184566A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0840875A1 (en) * 1995-04-07 1998-05-13 TIR Technologies, Inc. Collimating tir lens devices employing fluorescent light sources

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0840875A1 (en) * 1995-04-07 1998-05-13 TIR Technologies, Inc. Collimating tir lens devices employing fluorescent light sources
EP0840875A4 (en) * 1995-04-07 1999-05-12 Tir Technologies Inc Collimating tir lens devices employing fluorescent light sources

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Legal Events

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