GB8613187D0 - Light source - Google Patents

Light source

Info

Publication number
GB8613187D0
GB8613187D0 GB868613187A GB8613187A GB8613187D0 GB 8613187 D0 GB8613187 D0 GB 8613187D0 GB 868613187 A GB868613187 A GB 868613187A GB 8613187 A GB8613187 A GB 8613187A GB 8613187 D0 GB8613187 D0 GB 8613187D0
Authority
GB
United Kingdom
Prior art keywords
light source
source
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.)
Granted
Application number
GB868613187A
Other versions
GB2191572B (en
GB2191572A (en
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.)
Pearce Harvey P R
Original Assignee
Pearce Harvey P R
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 Pearce Harvey P R filed Critical Pearce Harvey P R
Priority to GB8613187A priority Critical patent/GB2191572B/en
Publication of GB8613187D0 publication Critical patent/GB8613187D0/en
Priority claimed from EP87310865A external-priority patent/EP0319621A1/en
Publication of GB2191572A publication Critical patent/GB2191572A/en
Application granted granted Critical
Publication of GB2191572B publication Critical patent/GB2191572B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • F21V5/046—Refractors for light sources of lens shape the lens having a rotationally symmetrical shape about an axis for transmitting light in a direction mainly perpendicular to this axis, e.g. ring or annular lens with light source disposed inside the ring
    • 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
    • F21V11/16—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using sheets without apertures, e.g. fixed
    • F21V11/18—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using sheets without apertures, e.g. fixed movable, e.g. flaps, slides
GB8613187A 1986-05-30 1986-05-30 Light source assembly Expired - Fee Related GB2191572B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8613187A GB2191572B (en) 1986-05-30 1986-05-30 Light source assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8613187A GB2191572B (en) 1986-05-30 1986-05-30 Light source assembly
EP87310865A EP0319621A1 (en) 1987-12-10 1987-12-10 Light source

Publications (3)

Publication Number Publication Date
GB8613187D0 true GB8613187D0 (en) 1986-07-02
GB2191572A GB2191572A (en) 1987-12-16
GB2191572B GB2191572B (en) 1990-07-18

Family

ID=26111296

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8613187A Expired - Fee Related GB2191572B (en) 1986-05-30 1986-05-30 Light source assembly

Country Status (1)

Country Link
GB (1) GB2191572B (en)

Families Citing this family (3)

* 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
GB9216333D0 (en) * 1992-07-31 1992-09-16 Kodak Ltd Optical means for annular illumination of a spot
WO1999061945A1 (en) * 1998-05-28 1999-12-02 Remote Source Lighting International, Inc. Parabolic and spherical multiport illuminators for light guides

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2424474A1 (en) * 1978-04-24 1979-11-23 Cipel LIGHT SIGNALING DEVICE
FR2471006A1 (en) * 1979-11-28 1981-06-12 Claude DEVICE FOR THE LIGHT SIGNALING OF OBSTACLES
FR2474143A1 (en) * 1979-12-04 1981-07-24 Cibie Projecteurs DEVICE FOR FIXING A LAMP ON THE REFLECTOR OF A PROJECTOR

Also Published As

Publication number Publication date
GB2191572B (en) 1990-07-18
GB2191572A (en) 1987-12-16

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Legal Events

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