[go: up one dir, main page]

GB2073865B - Signal lanterns for optional coloured light emittance - Google Patents

Signal lanterns for optional coloured light emittance

Info

Publication number
GB2073865B
GB2073865B GB8012417A GB8012417A GB2073865B GB 2073865 B GB2073865 B GB 2073865B GB 8012417 A GB8012417 A GB 8012417A GB 8012417 A GB8012417 A GB 8012417A GB 2073865 B GB2073865 B GB 2073865B
Authority
GB
United Kingdom
Prior art keywords
coloured light
light emittance
signal lanterns
optional
optional coloured
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
GB8012417A
Other versions
GB2073865A (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.)
Eveready Industries India Ltd
Original Assignee
Union Carbide India 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 Union Carbide India Ltd filed Critical Union Carbide India Ltd
Priority to GB8012417A priority Critical patent/GB2073865B/en
Publication of GB2073865A publication Critical patent/GB2073865A/en
Application granted granted Critical
Publication of GB2073865B publication Critical patent/GB2073865B/en
Expired 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
    • 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
    • F21V9/083—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 for portable lighting devices
    • 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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/08—Controlling the distribution of the light emitted by adjustment of elements by movement of the screens or filters
    • F21V14/085—Controlling the distribution of the light emitted by adjustment of elements by movement of the screens or filters in portable lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
GB8012417A 1980-04-15 1980-04-15 Signal lanterns for optional coloured light emittance Expired GB2073865B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8012417A GB2073865B (en) 1980-04-15 1980-04-15 Signal lanterns for optional coloured light emittance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8012417A GB2073865B (en) 1980-04-15 1980-04-15 Signal lanterns for optional coloured light emittance

Publications (2)

Publication Number Publication Date
GB2073865A GB2073865A (en) 1981-10-21
GB2073865B true GB2073865B (en) 1983-11-30

Family

ID=10512806

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8012417A Expired GB2073865B (en) 1980-04-15 1980-04-15 Signal lanterns for optional coloured light emittance

Country Status (1)

Country Link
GB (1) GB2073865B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5667293A (en) * 1996-04-17 1997-09-16 Own; James Flashlight with illumination and alerting effect

Also Published As

Publication number Publication date
GB2073865A (en) 1981-10-21

Similar Documents

Publication Publication Date Title
GB2079431B (en) Ornamental light
GB8317721D0 (en) Light source
JPS56134533A (en) Colored glass
DE3161765D1 (en) Lighting fixture
GB2090486B (en) Lighting system
JPS5741601A (en) Light reflector
DE3269861D1 (en) Optical-fiber lighting unit
BG41967A1 (en) Spot- light screen for optical purposes
GB2047870B (en) Signal lamp emitting coloured light
JPS5745583A (en) Solid state light emitting display unit
JPS5713439A (en) Projecting wall for projecting transmitting light
GB2090082B (en) Fluorescent light unit with dual light levels
GB2087145B (en) Light emitting device
GB2073865B (en) Signal lanterns for optional coloured light emittance
JPS575203A (en) Reflecting flexibility light
GB2090956B (en) Signal light
GB2068523B (en) Marker light with adjustable optical system
JPS56130000A (en) Flashing signal lamp
JPS57116226A (en) Light detector
GB2090083B (en) Fluorescent light unit with dual light levels
GB2089959B (en) Signalling light
JPS56119006A (en) Embedded beacon light
JPS5744006A (en) Embedded type beacon light
JPS56113677A (en) Light ceiling for elevator
GB2072158B (en) Optical fluorophospate glass

Legal Events

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

Effective date: 19940415