GB2469618A - Portable light comprising primary and secondary light sources - Google Patents

Portable light comprising primary and secondary light sources Download PDF

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Publication number
GB2469618A
GB2469618A GB0906419A GB0906419A GB2469618A GB 2469618 A GB2469618 A GB 2469618A GB 0906419 A GB0906419 A GB 0906419A GB 0906419 A GB0906419 A GB 0906419A GB 2469618 A GB2469618 A GB 2469618A
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GB
United Kingdom
Prior art keywords
light
light source
output surface
portable
primary
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
GB0906419A
Other versions
GB0906419D0 (en
GB2469618B (en
Inventor
Reuben Wilcock
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
Priority to GB0906419.7A priority Critical patent/GB2469618B/en
Publication of GB0906419D0 publication Critical patent/GB0906419D0/en
Publication of GB2469618A publication Critical patent/GB2469618A/en
Application granted granted Critical
Publication of GB2469618B publication Critical patent/GB2469618B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
    • F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
    • F21S9/022—Emergency 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
    • 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
    • F21L4/02—Electric lighting devices with self-contained electric batteries or cells characterised by the provision of two or more light sources
    • F21L4/022—Pocket lamps
    • F21L4/025—Pocket lamps the light sources being of different shape or type
    • 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
    • F21L4/02—Electric lighting devices with self-contained electric batteries or cells characterised by the provision of two or more light sources
    • F21L4/022—Pocket lamps
    • F21L4/027—Pocket lamps the light sources being a LED
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/06—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages the fastening being onto or by the lampholder
    • 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
    • F21V7/00—Reflectors for light sources
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0075—Reflectors for light sources for portable lighting devices
    • 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
    • F21Y2113/00—Combination of light sources
    • 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
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Abstract

A method is provided of using the mechanical support column 130 of an optic 100 intended to provide light from a primary light source to the output surface for the additional purpose of guiding light from a secondary light source 180 to the light output surface 105. The method comprises of placing a secondary light source 180 behind the disc 140 containing the primary light source on which the optic is located such that the light from the secondary light source 180 is guided to the optic light output surface 105 through the support column 130. The light can be of a specific colour to indicate a system status, for example the battery level in a portable lighting solution.

Description

I
Portable Light
The present invention is a portable light comprising a light output surface, a primary light source for providing light to the light output surface, and a support structure for supporting the light output surface wherein the support structure is adapted to guide light from a secondary light source to the light output surface.
A number of optical lenses, referred to as optics, are commercially available whose main function is to focus or diffuse the light from a primary light source. These optics are typically solid parts made from a clear plastic material. Shaped surfaces on the optic perform the function of traditional reflectors by using internal reflection to direct the light through a light output surface. Such optics often include physical columns to mechanically support and align the optic and it's output surface at a fixed distance from a disc where the primary light source is located. The primary light source is typically one or more high powered light emitting devices.
The optics described are commonly used in portable lighting solutions. In portable lighting solutions it is often desirable to also indicate to the user a system status such as remaining battery level. For this status indication purpose a secondary light source and separate light guiding structure is typically used. As discussed further below, the applicant has identified that the physical supporting columns commonly found on optics can be used for the additional purpose of guiding a status light from a secondary light source to the light output surface. This removes the need for a separate light guiding structure and associated parts.
The present invention is a portable light comprising a light output surface, a primary light source for providing light to the light output surface, and a support structure for supporting the light output surface, characterised by comprising a secondary light source and also characterised in that the support structure is adapted to guide light from the secondary light source to the light output surface.
The support structure for supporting the light output surface may comprise at least one support column.
The secondary light source may be used to indicate a system status.
The light from the secondary light source may used to indicate battery level status.
The light from the secondary light source may be used for illumination.
The light from the secondary light source may be used for emergency illumination in the case where the primary light source fails.
The primary light source may comprise one or more high power light emitting devices.
The secondary light source may comprise a light emitting device.
Reference will now be made, by way of example, to the accompanying drawings, in which: Figure 1(a) and Figure 1(b) show the underside and topside respectively of a typical triple optic to which an embodiment of the present invention can be applied, and, Figure 2(a) and Figure 2(b) show an exploded and assembled view respectively of the hardware arrangement of an embodiment of the present invention.
As mentioned above, a number of commercial optics are available that serve the purpose of focussing and diffusing the light output from a primary light source. Such optics often include a number of mechanical columns whose function is to support and locate the optic with respect to a disc on which the primary light source is attached. The applicant has identified that these support columns can be used for the additional purpose of guiding light from a secondary light source to the light output surface. This secondary light source could be of a certain colour and could be used for the purpose of showing a status to the user. This secondary light source could also be used for the purpose of an emergency light output should the primary light source fail.
As illustrated in Figure 1(a) and (b), a solid optic 100 typically includes a number of reflector features 110, 115, 120, a light output surface 105, and a number of support columns 125, 130, 135.
Figure 2(a) and (b) show an exploded and assembled view respectively of an embodiment of the present invention. The optic support columns 125, 130, 135 locate into a metal disc 140 and serve two purposes. The first purpose is to mechanically support the optic structure 100 on the metal disc 140. The second purpose is to align the optic structure 100 with the primary light source which in this example comprises three high powered light emitting devices 145, 150, 155. These light emitting devices are attached onto the disc 140. The ends of the support columns 125, 130, 135 are located in matching slots in the disc 160, 165, 170 and as such are visible from beneath the disc 140. A secondary light source 180 is placed on circuit board 175 below the disc 140 where the primary light source 145, 150, 155 is attached. The secondary light source 180 is aligned with one of the supporting columns 130 such that the light it produces is guided to the light output surface 105 of the optic 100 through the supporting colunm 130. This allows a status light to be indicated on the light output surface 105 of the optic.
It will be appreciated that various modifications of the above embodiment can be made within the scope of the present invention as set out in the appended claims. For example, there may be fewer or greater than three reflectors in the optic body 100. There could be any number of mechanical support columns, 125, 130, 135 and these could be placed anywhere on the optic body 100. The disc 140 on which the primary light source 145, 150, 155 is attached could be of any shape and the primary light source may comprise any number of light emitting devices. The circuit board 175 could be omitted and the secondary light source 180 could be supported by another method. The secondary light source 180 could be of any shape.

Claims (8)

  1. CLAIMS1. A portable light comprising a light output surface, a primary light source for providing light to the light output surface, and a support structure for supporting the light output surface, characterised by comprising a secondary light source and also characterised in that the support structure is adapted to guide light from the secondary light source to the light output surface.
  2. 2 A portable light as claimed in claim 1, wherein the support structure comprises at least one support column.
  3. 3 A portable light as claimed in claim 1, wherein the light from the secondary light source is used to indicate a system status.
  4. 4 A portable light as claimed in claim 3, wherein the light from the secondary light source is used to indicate battery level status.
  5. A portable light as claimed in claim 1, wherein the light from the secondary light source is used for illumination.
  6. 6 A portable light as claimed in claim 5, wherein the light from the secondary light source is used for emergency illumination in the case where the primary light source fails.
  7. 7 A portable light as claimed in claim 1, wherein the primary light source comprises one or more high power light emitting devices.
  8. 8 A portable light as claimed in claim 1, wherein the secondary light source comprises a light emitting device.
GB0906419.7A 2009-04-15 2009-04-15 Portable light Expired - Fee Related GB2469618B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0906419.7A GB2469618B (en) 2009-04-15 2009-04-15 Portable light

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0906419.7A GB2469618B (en) 2009-04-15 2009-04-15 Portable light

Publications (3)

Publication Number Publication Date
GB0906419D0 GB0906419D0 (en) 2009-05-20
GB2469618A true GB2469618A (en) 2010-10-27
GB2469618B GB2469618B (en) 2013-04-03

Family

ID=40750581

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0906419.7A Expired - Fee Related GB2469618B (en) 2009-04-15 2009-04-15 Portable light

Country Status (1)

Country Link
GB (1) GB2469618B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2276713A (en) * 1993-03-09 1994-10-05 Iain Sinclair Improvements to torches
DE29620583U1 (en) * 1996-11-27 1997-02-13 Kundisch Microtech Gmbh & Co K Lighting fixture with continuously adjustable color change of the light and the light cone
US20050122711A1 (en) * 2003-12-09 2005-06-09 Surefire Llc Flashlight with lens for transmitting central and off-axis light sources
ES2259873A1 (en) * 2004-05-13 2006-10-16 Ecoyma, S.A. Lantern. (Machine-translation by Google Translate, not legally binding)
US20060245194A1 (en) * 2005-04-14 2006-11-02 Citizen Electronics Co. Ltd. Light emitting apparatus
WO2009023970A1 (en) * 2007-08-22 2009-02-26 Quantum Leap Research Inc. Lighting assembly featuring a plurality of light sources with a windage and elevation control mechanism therefor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2276713A (en) * 1993-03-09 1994-10-05 Iain Sinclair Improvements to torches
DE29620583U1 (en) * 1996-11-27 1997-02-13 Kundisch Microtech Gmbh & Co K Lighting fixture with continuously adjustable color change of the light and the light cone
US20050122711A1 (en) * 2003-12-09 2005-06-09 Surefire Llc Flashlight with lens for transmitting central and off-axis light sources
ES2259873A1 (en) * 2004-05-13 2006-10-16 Ecoyma, S.A. Lantern. (Machine-translation by Google Translate, not legally binding)
US20060245194A1 (en) * 2005-04-14 2006-11-02 Citizen Electronics Co. Ltd. Light emitting apparatus
WO2009023970A1 (en) * 2007-08-22 2009-02-26 Quantum Leap Research Inc. Lighting assembly featuring a plurality of light sources with a windage and elevation control mechanism therefor

Also Published As

Publication number Publication date
GB0906419D0 (en) 2009-05-20
GB2469618B (en) 2013-04-03

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

Effective date: 20180415