WO2006072885A1 - Variable light beam lighting device, in particular for a flashlight - Google Patents

Variable light beam lighting device, in particular for a flashlight Download PDF

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Publication number
WO2006072885A1
WO2006072885A1 PCT/IB2006/000159 IB2006000159W WO2006072885A1 WO 2006072885 A1 WO2006072885 A1 WO 2006072885A1 IB 2006000159 W IB2006000159 W IB 2006000159W WO 2006072885 A1 WO2006072885 A1 WO 2006072885A1
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WO
WIPO (PCT)
Prior art keywords
lenses
axis
optical elements
optical
optical element
Prior art date
Application number
PCT/IB2006/000159
Other languages
French (fr)
Other versions
WO2006072885A8 (en
Inventor
Marco Angelini
Claudia Bigliati
Original Assignee
Fraen Corporation S.R.L.
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 Fraen Corporation S.R.L. filed Critical Fraen Corporation S.R.L.
Publication of WO2006072885A1 publication Critical patent/WO2006072885A1/en
Publication of WO2006072885A8 publication Critical patent/WO2006072885A8/en

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
    • F21V5/006—Refractors for light sources applied to 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
    • 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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of 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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors
    • F21V14/065—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors in 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
    • F21V5/00—Refractors for light sources
    • F21V5/008—Combination of two or more successive refractors along an optical axis
    • 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
    • F21V5/045—Refractors for light sources of lens shape the lens having discontinuous faces, e.g. Fresnel lenses
    • 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
    • F21V7/0091—Reflectors for light sources using total internal reflection
    • 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]

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)

Abstract

A variable light beam lighting device (1), useable in particular in a flashlight, presenting a casing (2) a light source (3), in particular a LED, a first and a second optical element (11, 12) for conveying the light emitted by the source into a beam extending about an axis (A), and an adjustment mechanism (13) for adjusting the distance between the optical elements (11, 12) along the axis (A) and varying the convergence of the beam about the axis; the optical elements (11, 12) present respective pluralities of lenses (31, 32) facing and opposed to one another, pairs of facing lenses (31, 32) having respective focuses aligned parallely to the axis (A) and arranged between the optical elements (11, 12); the lenses (31, 32) are integrally carried by respective optical elements (11, 12) and the adjustment mechanism (13) moves the optical elements with respect to each other along the axis (A) to vary the relative position of the focuses of the pairs of facing lenses (31, 32).

Description

VARIABLE LIGHT BEAM LIGHTING DEVICE, IN PARTICULAR FOR A FLASHLIGHT
TECHNICAL FIELD
The present invention relates to a variable light beam lighting device, particularly adapted for use in a flashlight . BACKGROUND ART
There are known flashlights (or electrical torches) comprising a casing that houses one or more batteries, a light source, typically a filament bulb, fed by the batteries by means of an electrical circuit and associated to a reflector, and an adjustable head, arranged on an end of the casing and containing a lens; the head is turnably coupled, for example by means of a threaded coupling, to the casing: the rotation of the head switches on/off the flashlight and also allows the divergence/convergence of the light beam emitted by the flashlight to be adjusted, because such rotation changes the distance between the source (carried by the casing) and the lens (carried by the head) .
However, the flashlights of this type are not free from drawbacks .
Firstly, the beam adjustment mechanism requires a relatively wide axial movement (in the order of a few millimetres) of the head with respect to the casing and, consequently, the mechanism has a relatively large size . Secondly, the beam emitted by the source projects the image of the source itself, which therefore is visible inside the beam. Furthermore, the use of filament bulbs causes a series of drawbacks typically associated to the use of this type of light source, in particular in terms of consumption, duration, thermal emission, etc . DISCLOSURE OF INVENTION
It is therefore an object of the present invention to provide a lighting device, particularly indicated for use in a flashlight, which is free from the aforementioned drawbacks of the known art and, in particular, a high efficiency device which allows the adjustment of the light beam by means of a simple, small-sized adjustment mechanism.
The present invention relates to a variable light beam lighting device, particularly for a flashlight, comprising a light source, a first and a second optical element for conveying the light emitted by the source into a beam extending about an axis, and an adjustment mechanism for adjusting the distance between the optical elements along said axis and varying the convergence of the beam about the axis; the device being characterised in that said optical elements comprise respective plurality of lenses facing and opposed to one another, pairs of facing lenses having respective focuses aligned parallely to the axis and arranged between the optical elements .
In this way, since each pair of facing lenses has a small focal distance, it is possible to adjust the beam emitted by the lighting device by means of small axial shifts; the adjustment mechanism and, therefore, the device as a whole, have accordingly a small size. Furthermore, the image of the source is broken down by the lenses so as to be no longer visible in the beam emitted by the device. Moreover, the use in accordance to an aspect of the invention, of a solid state light source (LED) , entails significant advantages in terms of light efficiency, duration, consumptions, thermal emission.
The highlighted features make the lighting device of the invention particularly adapted for use in a flashlight . BRIEF DESCRIPTION OF THE DRAWINGS
Further features and advantages of the present invention will be apparent in the description that follows of a non-limiting example of embodiment thereof, with reference to the accompanying drawings, in which:
- figure 1 is a partial schematic longitudinal section view of a variable light beam lighting device in accordance with the invention, used in a flashlight; - figures 2 and 3 are two schematic prospective views of respective optical elements belonging to the device in figure 1;
- figure 4 is a schematic sectional view of the optical elements in figures 2 and 3 , in use; - figures 5 and 6 schematically show the operation of the device in figure 1;
- figure 7 is a schematic sectional view of a variation of the optical elements in figures 2 and 3.
BEST MODE FOR CARRYING OUT THE INVENTION In figure 1, number 1 indicates a variable light beam lighting device, used in a flashlight (or electrical torch) 10; the device 1 comprises a tubular casing 2, only partially shown in figure 1, inside which are accommodated one or more batteries (not shown) and a light source 3 carried by a bulb holder 4 integrally fastened to the casing 2; the source 3 is a solid state light source, in particular a LED, and is powered by the batteries by means of an electrical circuit (known and not shown) controlled by a light switch (also known and not shown) .
The device 1 then comprises a first and a second optical element 11, 12 , for conveying the light emitted by the source 3 in a beam extending about an axis A, and an adjustment mechanism 13 for adjusting the distance between the optical elements 11, 12 along the axis A and varying the convergence/divergence of the beam about the axis A.
The use of a LED as source 3 allows a high light efficiency to be obtained without the need for reflectors, as required instead by filament bulbs; the device 1 is therefore free from reflectors associated to the source 3 to convey the emission of the source 3 to the optical elements 11, 12.
The optical elements 11, 12 are aligned along the axis A to the source 3 and are arranged facing each other and separated by a compartment 14; the optical elements 11, 12 are integrally carried by respective supporting elements 15, 16 which, in the case in point, are defined by an end portion 17 of the casing 2 and, respectively, by an adjustable head 18, which is turnably coupled about the axis A to the casing 2 ; the adjustment mechanism comprises a threaded coupling 19 between the supporting elements 15, 16. The threaded coupling 19 allows the rotation of the supporting elements 15, 16 with respect to each other about the axis A and a consequent shift of the supporting elements 15, 16 with respect to each other along the axis A.
With reference also to figures 2, 3 and 4 , the optical elements 11, 12 comprise respective monolithic bodies 21, 22 made of a moulded transparent polymeric material; the bodies 21, 22 comprise respective optical portions 23 , 24 and respective externally radial flanges 25, 26; the flanges 25, 26 are used to move the bodies 21, 22 during assembly and are then used to fasten (in a known way only schematically shown in figure 1) the bodies 21, 22 to the supporting elements 15, 16.
The optical portion 23 of the optical element 11 is shaped so as to collect all the light emitted by the source 3 and to convey It into a collimated beam of substantially parallel light rays . For example, in the preferred embodiment shown in figures 1 and 4 , the optical portion 23 of the optical element 11 defines a total-internal-reflection catadioptric collimator and presents an optical input surface 27, facing the source 3 and through which the light rays enter the optical element 11, and an internal reflection surface 28 which conveys the light rays inside the optical element 11 parallely to the axis A to form the collimated light beam; the source 3 is arranged in a recess 29 delimited by the optical input surface 27; the source 3 is arranged in the focus of the optical input surface 27.
The optical element 11 also carries a plurality of first lenses 31 axially arranged opposite to the optical input surface 27 and shaped so as to focus the collimated beam which passes through the optical element 11 in a plurality of focuses arranged between the optical elements 11, 12 in the compartment 14.
The second optical element 12 carries a plurality of second lenses 32, whose focuses are also arranged between the optical elements 11, 12 in the compartment 14 , and presents an optical output surface 34, arranged axially opposite to the lenses 32 and, in the case in point, essentially flat . Each lens 31 faces and is opposed to a lens 32 to form a pair of lenses 31, 32 parallely aligned to the axis A and having respective focuses also aligned parallel to the axis A and arranged between the optical elements 11, 12 in the compartment 14. The optical elements 11, 12 present central symmetry about the axis A; the optical input surface 27, the optical output surface 34 and the lenses 31, 32 are all shaped so as to present a central symmetry about the axis A; the lenses 31, 32 are concentrically arranged about the axis A on the respective optical elements 11, 12. In particular, the optical elements 11, 12 comprises respective central lenses 31a, 32a, arranged and aligned along the axis A and essentially cap-shaped, and respective series of lenses 31b, 32b essentially ring-shaped and defined by respective annular concentric ridges radially facing each other and which extend circumferentially about the axis A.
Preferably, the lenses 31, 32 are aspherical profile lenses; it is however understood that the lenses 31, 32 may be shaped in other ways . The lenses 31, 32 are integrally carried by respective optical elements 11, 12 and, in the case in point, are integrally formed with the optical elements 11, 12 ; the optical elements 11, 12 and, therefore, the lenses 31, 32 turn integrally with the respective supporting elements 15, 16.
The operation of the device 1 is schematically shown in figures 5 and 6.
The light emitted by the source 3 is intercepted by the optical input surface 27 and collimated in a collimated beam of parallel rays which pass through the optical element 11 parallely to the axis A; the lenses 31 then focus the collimated beam in a plurality of focuses arranged between the optical elements 11, 12. The light rays then pass through the lenses 32 and emerge from the optical output surface 34.
In the condition in figure 5 , the focuses of the lenses 31 coincide with the focuses of the respective lenses 32 , so the beam that passes through the optical element 12 and emerges from the optical output surface 34 is a beam of parallel rays .
To vary the convergence/divergence of the beam emitted by the device 1, the head 18 is turned with respect to the casing 2 , that is the supporting element 15 is turned with respect to the supporting element 16; in this way, the optical elements 11, 12 are turned with respect to each ot' Ler along the axis A and the relative position of the focuses of each pairs of facing lenses 31, 32 is changed. For example, in the condition of figure 6 the optical element 12 has been approached to the optical element 11 with respect to the condition shown in figure 5 : consequently, the device 1 emits a divergent beam.
Clearly, the geometry of the optical elements 11, 12 and, in particular, of the lenses 31, 32 and of the optical input and output surfaces 27, 34, may be modified with respect to what herein shown by way of example; for example, figure 7 shows a possible variation of the optical elements 11, 12, in which the input and output optical surfaces 27, 34 comprise respective central portions 35 and peripheral radially outer curved portions 36 formed by a series of annular teeth (defining Fresnel lenses) .
It is however understood that further changes and variations can be made to the device described and shown herein without departing from the scope of the annexed claims .

Claims

C L A I M S
1. A variable light beam lighting device (1) , particularly for a flashlight, comprising a light source (3) , a first and a second optical element (11, 12) for conveying the light emitted by the source into a beam extending about an axis (A) , and an adjustment mechanism (13) for adjusting the distance between the optical elements (11, 12) along said axis (A) and varying the convergence of the beam about the axis; the device being characterised in that said optical elements (11, 12) comprise respective plurality of lenses (31, 32) facing and opposed to one another, pairs of facing lenses (31, 32) having respective focuses aligned parallely to the axis (A) and arranged between the optical elements (11, 12) .
2. A device according to claim 1, characterised in that said plurality of lenses (31, 32) are integrally carried by respective optical elements (11, 12) and the adjustment mechanism (13) moves the optical elements with respect to each other along the axis (A) to vary the relative position of the focuses of said pairs of facing lenses (31, 32) .
3. A device according to claim 1 or 2, characterised in that the first optical element (11) is shaped so as to collimate the light beam emitted by the source into a collimated beam of substantially parallel light rays which pass through said first optical element (11) .
4. A device according to claim 3 , characterised in that the first optical element (11) carries a plurality of first lenses (31) shaped so as to focus the collimated beam which pass through said first optical element (11) in a plurality of focuses arranged between the optical elements (11, 12) .
5. A device according to claim 4, characterised in that the second optical element (12) carries a plurality of second lenses (32) , whose focuses are arranged between the optical elements (11, 12) , and presents an optical output surface (34) , arranged axially opposite to said second lenses (32) .
6. A device according to one of the preceding claims, characterised in that the optical elements (11, 12) are integrally carried by respective supporting elements (15, 16) and the adjustment mechanism (13) comprises a threaded coupling (19) between said supporting elements (15, 16) to turn the supporting elements with respect to each other about the axis (A) .
7. A device according to claim 6 , characterised in that the optical elements (11, 12) turn integrally with the respective supporting elements (15, 16) .
8. A device according to one of the preceding claims, characterised in that the optical elements (11, 12) present a central symmetry about said axis (A) .
9. A device according to one of the preceding claims, characterised in that the lenses (31, 32) of each optical element (11, 12) are concentrically arranged about said axis (A) .
10. A device according to one of the preceding claims, characterised in that the lenses (31, 32) are essentially ring-shaped and extend circumferentially about said axis (A) .
11. A device according to one of the preceding claims, characterised in that the source (3) is a solid state light source, in particular a LED.
12. A flashlight (10) , characterised by comprising a variable light beam lighting device (1) according to any one of the preceding claims .
PCT/IB2006/000159 2005-01-07 2006-01-05 Variable light beam lighting device, in particular for a flashlight WO2006072885A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000018A ITMI20050018A1 (en) 2005-01-07 2005-01-07 LUMINOUS LIGHT VARIABLE LIGHTING DISPOSITORY IN PARTICULAR FOR AN ELECTRIC TORCH
ITMI2005A000018 2005-01-07

Publications (2)

Publication Number Publication Date
WO2006072885A1 true WO2006072885A1 (en) 2006-07-13
WO2006072885A8 WO2006072885A8 (en) 2007-08-16

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PCT/IB2006/000159 WO2006072885A1 (en) 2005-01-07 2006-01-05 Variable light beam lighting device, in particular for a flashlight

Country Status (2)

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IT (1) ITMI20050018A1 (en)
WO (1) WO2006072885A1 (en)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008017718A1 (en) * 2006-08-10 2008-02-14 Upstream Engineering Oy Illuminator method and device
WO2008151826A1 (en) * 2007-06-15 2008-12-18 Sebastian Heise Lighting device
WO2009034511A3 (en) * 2007-09-11 2009-06-18 Koninkl Philips Electronics Nv Illumination system, light source and beam-control element
EP2161491A2 (en) * 2008-09-08 2010-03-10 Barbolight, S.L. Focusing device for the light beam in illumination elements with damp chamber
CN101377281B (en) * 2007-08-29 2010-09-29 亿光电子工业股份有限公司 LED light source base capable of zooming
WO2011080767A1 (en) * 2009-12-28 2011-07-07 Ar-Ky S.R.L. "lighting device"
US8007156B1 (en) 2007-01-09 2011-08-30 Surefire, Llc Light assembly for flashlights
US8033690B1 (en) 2007-01-09 2011-10-11 Surefire, Llc Light assembly for flashlights
ITVI20120134A1 (en) * 2012-06-05 2013-12-06 Beghelli Spa ADJUSTABLE BRIGHT OPTIONAL LIGHTING SYSTEM FOR LED LIGHTING DEVICES
WO2014013130A1 (en) 2012-07-20 2014-01-23 Ledil Oy Lens arrangement and illuminator housing
US8714782B1 (en) 2007-01-09 2014-05-06 Surefire, Llc Light assembly for flashlights
US8727576B1 (en) 2007-01-09 2014-05-20 Surefire, Llc Light assembly for flashlights
WO2014131265A1 (en) * 2013-02-26 2014-09-04 Chen Xianqing Double-lens zooming flashlight
US8840277B1 (en) 2007-01-09 2014-09-23 Surefire, Llc Light assembly for flashlights
US8870419B2 (en) 2009-09-17 2014-10-28 Koninklijke Philips N.V. Lighting system with gravity controlled light beam
WO2016179620A1 (en) * 2015-05-13 2016-11-17 Zkw Group Gmbh Illuminating device with adjustment of the optical components
WO2017083450A1 (en) * 2015-11-12 2017-05-18 Ge Lighting Solution, Llc Methods and apparatus for use in association with lighting systems
WO2017103267A1 (en) * 2015-12-18 2017-06-22 Valeo Vision Belgique Luminous module, in particular for a vehicle stop light
CN107270241A (en) * 2017-06-19 2017-10-20 江苏亿诺车辆部件有限公司 A kind of automobile lamp lens
CN109990224A (en) * 2019-03-19 2019-07-09 佛山市南海顺展模具灯饰金属制品有限公司 A kind of self-regulation LED dipped beam polishing lamp and its light adjusting method
EP3329181B1 (en) * 2015-07-30 2019-07-17 Gaggione SAS Optical system for non-imaging collimation of maximum light intensity
WO2020208292A1 (en) 2019-04-08 2020-10-15 Ledil Oy An optical device for modifying light distribution
JP2021072207A (en) * 2019-10-30 2021-05-06 日亜化学工業株式会社 Light source device
US11143382B2 (en) * 2019-10-09 2021-10-12 Chuan Kuang Optics Corp. Optical lens structure
CN114630990A (en) * 2019-10-30 2022-06-14 日亚化学工业株式会社 Light source device
WO2023012400A1 (en) 2021-08-02 2023-02-09 Ledil Oy An optical device for modifying light distribution
US11782205B2 (en) 2021-04-28 2023-10-10 Nichia Corporation Light-emitting device including movement mechanism

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1821430A (en) * 1929-05-02 1931-09-01 Bridgeport Metal Goods Mfg Co Focusing spotlight
DE1034116B (en) * 1957-02-23 1958-07-17 Hensoldt & Soehne M Lighting device, in particular operating room light
DE3926618A1 (en) * 1989-08-11 1991-02-14 Philips Patentverwaltung Lighting unit with variable flood to spot capability - has twin fixed and moving lenses with matching concentric convex and concave prisms enabling selection of light beam
US5757557A (en) * 1997-06-09 1998-05-26 Tir Technologies, Inc. Beam-forming lens with internal cavity that prevents front losses
US20010007527A1 (en) * 2000-01-07 2001-07-12 U.S. Philips Corporation Luminaire
US20020118344A1 (en) * 2001-02-06 2002-08-29 Fischer Robert E. Flashlight producing uniform high brightness
US6807369B1 (en) * 1999-04-15 2004-10-19 Canon Kabushiki Kaisha Illumination device and photographing apparatus having the same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1821430A (en) * 1929-05-02 1931-09-01 Bridgeport Metal Goods Mfg Co Focusing spotlight
DE1034116B (en) * 1957-02-23 1958-07-17 Hensoldt & Soehne M Lighting device, in particular operating room light
DE3926618A1 (en) * 1989-08-11 1991-02-14 Philips Patentverwaltung Lighting unit with variable flood to spot capability - has twin fixed and moving lenses with matching concentric convex and concave prisms enabling selection of light beam
US5757557A (en) * 1997-06-09 1998-05-26 Tir Technologies, Inc. Beam-forming lens with internal cavity that prevents front losses
US6807369B1 (en) * 1999-04-15 2004-10-19 Canon Kabushiki Kaisha Illumination device and photographing apparatus having the same
US20010007527A1 (en) * 2000-01-07 2001-07-12 U.S. Philips Corporation Luminaire
US20020118344A1 (en) * 2001-02-06 2002-08-29 Fischer Robert E. Flashlight producing uniform high brightness

Cited By (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7729578B2 (en) 2006-04-18 2010-06-01 Upstream Engineering Oy Illuminator method and device
WO2008017718A1 (en) * 2006-08-10 2008-02-14 Upstream Engineering Oy Illuminator method and device
JP2011096666A (en) * 2006-08-10 2011-05-12 Upstream Engineering Oy Irradiation method and irradiation device
CN101523267B (en) * 2006-08-10 2012-06-20 逆流工程公司 Illuminator method and device
US8139909B2 (en) 2006-08-10 2012-03-20 Upstream Engineering Oy Illuminator method and device
US8840277B1 (en) 2007-01-09 2014-09-23 Surefire, Llc Light assembly for flashlights
US8007156B1 (en) 2007-01-09 2011-08-30 Surefire, Llc Light assembly for flashlights
US8033690B1 (en) 2007-01-09 2011-10-11 Surefire, Llc Light assembly for flashlights
US8727576B1 (en) 2007-01-09 2014-05-20 Surefire, Llc Light assembly for flashlights
US8714782B1 (en) 2007-01-09 2014-05-06 Surefire, Llc Light assembly for flashlights
US8851710B2 (en) 2007-06-15 2014-10-07 Sebastian Heise Lighting device
WO2008151826A1 (en) * 2007-06-15 2008-12-18 Sebastian Heise Lighting device
CN101377281B (en) * 2007-08-29 2010-09-29 亿光电子工业股份有限公司 LED light source base capable of zooming
US8696167B2 (en) 2007-09-11 2014-04-15 Koninklijke Philips N.V. Illumination system, light source and beam-control element
WO2009034511A3 (en) * 2007-09-11 2009-06-18 Koninkl Philips Electronics Nv Illumination system, light source and beam-control element
KR101542730B1 (en) 2007-09-11 2015-08-07 코닌클리케 필립스 엔.브이. Illumination system, light source and beam-control element
CN101802493B (en) * 2007-09-11 2014-06-18 皇家飞利浦电子股份有限公司 Illumination system, light source and beam-control element
EP2161491A3 (en) * 2008-09-08 2012-06-13 Barbolight, S.L. Focusing device for the light beam in illumination elements with damp chamber
EP2161491A2 (en) * 2008-09-08 2010-03-10 Barbolight, S.L. Focusing device for the light beam in illumination elements with damp chamber
US8870419B2 (en) 2009-09-17 2014-10-28 Koninklijke Philips N.V. Lighting system with gravity controlled light beam
WO2011080767A1 (en) * 2009-12-28 2011-07-07 Ar-Ky S.R.L. "lighting device"
WO2013183072A1 (en) * 2012-06-05 2013-12-12 Beghelli S.P.A. Optical system with adjustable light beam for led lighting devices
ITVI20120134A1 (en) * 2012-06-05 2013-12-06 Beghelli Spa ADJUSTABLE BRIGHT OPTIONAL LIGHTING SYSTEM FOR LED LIGHTING DEVICES
CN104412037A (en) * 2012-06-05 2015-03-11 贝盖利股份有限公司 Optical system with adjustable light beam for led lighting devices
WO2014013130A1 (en) 2012-07-20 2014-01-23 Ledil Oy Lens arrangement and illuminator housing
WO2014131265A1 (en) * 2013-02-26 2014-09-04 Chen Xianqing Double-lens zooming flashlight
US9140417B2 (en) 2013-02-26 2015-09-22 XianQing CHEN Dual-lens zooming flashlight
JP2018518800A (en) * 2015-05-13 2018-07-12 ツェットカーヴェー グループ ゲーエムベーハー LIGHTING DEVICE HAVING OPTICAL COMPONENT ELEMENT ADJUSTING UNIT
WO2016179620A1 (en) * 2015-05-13 2016-11-17 Zkw Group Gmbh Illuminating device with adjustment of the optical components
CN108633299A (en) * 2015-05-13 2018-10-09 Zkw集团有限责任公司 The lighting device of adjustment with optical structural detail
US10001254B2 (en) 2015-05-13 2018-06-19 Zkw Group Gmbh Illuminating device with adjustment of the optical components
EP3587912A1 (en) * 2015-07-30 2020-01-01 Gaggione SAS Optical system for non-imaging collimation of maximum light intensity
EP3329181B1 (en) * 2015-07-30 2019-07-17 Gaggione SAS Optical system for non-imaging collimation of maximum light intensity
WO2017083450A1 (en) * 2015-11-12 2017-05-18 Ge Lighting Solution, Llc Methods and apparatus for use in association with lighting systems
US10274158B2 (en) 2015-11-12 2019-04-30 GE Lighting Solutions, LLC Methods and apparatus for use in association with lighting systems
FR3045781A1 (en) * 2015-12-18 2017-06-23 Valeo Vision Belgique LUMINOUS MODULE, ESPECIALLY FOR SURELEVE STOP FIRE WITH SMOOTH APPEARANCE
WO2017103267A1 (en) * 2015-12-18 2017-06-22 Valeo Vision Belgique Luminous module, in particular for a vehicle stop light
CN108603649A (en) * 2015-12-18 2018-09-28 法雷奥照明比利时公司 It is used in particular for the lighting module of brake lamp
CN108603649B (en) * 2015-12-18 2021-03-19 法雷奥照明比利时公司 Lighting module, in particular for a brake light
US20190003676A1 (en) * 2015-12-18 2019-01-03 Valeo Vision Belgique Lighting module in particular for a high-mounted stop light of smooth appearance
US10760763B2 (en) 2015-12-18 2020-09-01 Valeo Vision Belgique Lighting module in particular for a high-mounted stop light of smooth appearance
CN107270241B (en) * 2017-06-19 2019-07-12 江苏亿诺车辆部件有限公司 A kind of automobile lamp lens
CN107270241A (en) * 2017-06-19 2017-10-20 江苏亿诺车辆部件有限公司 A kind of automobile lamp lens
CN109990224A (en) * 2019-03-19 2019-07-09 佛山市南海顺展模具灯饰金属制品有限公司 A kind of self-regulation LED dipped beam polishing lamp and its light adjusting method
CN109990224B (en) * 2019-03-19 2021-10-01 佛山市南海顺展模具灯饰金属制品有限公司 Self-adjusting LED dipped beam lighting lamp and light adjusting method thereof
US20220196225A1 (en) * 2019-04-08 2022-06-23 Ledil Oy An optical device for modifying light distribution
WO2020208292A1 (en) 2019-04-08 2020-10-15 Ledil Oy An optical device for modifying light distribution
US11662082B2 (en) 2019-04-08 2023-05-30 Ledil Oy Optical device for modifying light distribution
US11143382B2 (en) * 2019-10-09 2021-10-12 Chuan Kuang Optics Corp. Optical lens structure
WO2021084919A1 (en) * 2019-10-30 2021-05-06 日亜化学工業株式会社 Light source device
CN114641654A (en) * 2019-10-30 2022-06-17 日亚化学工业株式会社 Light source device
CN114630990A (en) * 2019-10-30 2022-06-14 日亚化学工业株式会社 Light source device
JP2021072207A (en) * 2019-10-30 2021-05-06 日亜化学工業株式会社 Light source device
US11802678B2 (en) 2019-10-30 2023-10-31 Nichia Corporation Light source device
EP4053446A4 (en) * 2019-10-30 2023-11-29 Nichia Corporation Light source device
US11867390B2 (en) 2019-10-30 2024-01-09 Nichia Corporation Light source device
US11782205B2 (en) 2021-04-28 2023-10-10 Nichia Corporation Light-emitting device including movement mechanism
WO2023012400A1 (en) 2021-08-02 2023-02-09 Ledil Oy An optical device for modifying light distribution

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