WO2012090108A1 - Lentille et appareil d'éclairage comprenant cette lentille - Google Patents

Lentille et appareil d'éclairage comprenant cette lentille Download PDF

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Publication number
WO2012090108A1
WO2012090108A1 PCT/IB2011/055733 IB2011055733W WO2012090108A1 WO 2012090108 A1 WO2012090108 A1 WO 2012090108A1 IB 2011055733 W IB2011055733 W IB 2011055733W WO 2012090108 A1 WO2012090108 A1 WO 2012090108A1
Authority
WO
WIPO (PCT)
Prior art keywords
lens
light
dimension
lighting apparatus
illuminance
Prior art date
Application number
PCT/IB2011/055733
Other languages
English (en)
Inventor
Shi Tao DENG
Xiao Yan ZHU
Wenyi Li
Original Assignee
Koninklijke Philips Electronics N.V.
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 Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Publication of WO2012090108A1 publication Critical patent/WO2012090108A1/fr

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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
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0927—Systems for changing the beam intensity distribution, e.g. Gaussian to top-hat
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0938—Using specific optical elements
    • G02B27/095—Refractive optical elements
    • G02B27/0955—Lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0037—Arrays characterized by the distribution or form of lenses
    • G02B3/005—Arrays characterized by the distribution or form of lenses arranged along a single direction only, e.g. lenticular sheets
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0037—Arrays characterized by the distribution or form of lenses
    • G02B3/0062—Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between
    • G02B3/0068—Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between arranged in a single integral body or plate, e.g. laminates or hybrid structures with other optical elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads
    • 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
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • 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]

Definitions

  • the invention relates to an optical device, in particular, a lens and a lighting apparatus provided thereon.
  • a commonly used lighting apparatus providing a lighting solution for sites such as flyovers or overpasses is a side wall-embedded luminaire, wherein fluorescent lamps are generally used as light source and are embedded into the side-wall fence at a low mounting height (usually around 1 m), which often has several disadvantages:
  • the illuminance level is not high enough to enhance driving safety
  • Thorn Lighting Co., Ltd recently issued a luminaire mounted at low-height which is marketed under the brand name of Orus, which is claimed to provide an anti-glare lighting solution for ramps or bridges.
  • Orus uses ceramic metal halide lamps as the light source, often with a power between 35W and 70W.
  • the optical structure is mainly made up by a cylinder-shaped reflector, which is claimed to achieve uniform illuminance on road surfaces to some extent.
  • the ceramic metal halide lamp As a light source, the ceramic metal halide lamp is large in size and shape, which actually makes it difficult to achieve an optical design suitable to control the light intensity, thereby forming a bottleneck in achieving good enough luminance uniformity. Consequently, direct light emission to the automotive driver is unavoidable, thereby causing visual discomfort to the driver's eyes.
  • the overall size of the lantern is relatively large and, as a result, the lantern protrudes from the side-wall fence, having a negative influence on pedestrians or vehicles passing by.
  • lens and lens-based lighting apparatus provided thereon have been used for lighting at a relatively high mounting height, for example in the overhead direction, good luminance uniformity could not be achieved by simply utilizing these high-mounted light sources having the orientation of side-wall lighting.
  • the orientation between them varies, that is, the maximum intensity direction of the lens or lighting apparatus is substantially vertical to the surface to be lit in the case of a high mounting position, while the maximum intensity direction of the lens or lighting apparatus provided thereon is tilted relative to the surface to be lit in the case of a low-mounted lighting, especially in the case of flyovers, overpasses and so on.
  • a lighting apparatus it is fairly difficult for a lighting apparatus to uniformly illuminate a surface tilted to the maximum intensity direction of such a lens or lighting apparatus.
  • the reason for this being that it is fairly difficult to produce a lighting apparatus capable of providing, by emitting an oblique beam relative to a surface, a uniform illuminance on the surface.
  • a lighting apparatus capable of producing a uniform illuminance on a surface when illuminating the surface tilted to the illuminance direction, which is often required in a lighting scenario where the lighting apparatus is mounted at a low height, such as in the case of a side-wall fence lighting for flyovers, overpasses and so on.
  • a lens according to an embodiment of the invention which lens comprises: a first optical surface configured to uniformize the illuminance of light, as the light passes through the first optical surface, within a first distance in a first dimension, in a first case; and the first case may be such that the first dimension is tilted relative to the maximum intensity direction of the lens; and a second optical surface configured to uniformize the illuminance of the light, as the light passes through the second optical surface, within a second distance along a second dimension, in a second case.
  • the first dimension and the second dimension may take the form of two directions on the plane of the road surface, for instance the transverse direction and the longitudinal direction of the road surface, which are coplanar and substantially mutually orthogonal.
  • a lighting apparatus comprising a lens as mentioned above and also a lighting unit comprising a LED array.
  • a light processing method comprising the steps of:
  • the first dimension and the second dimension may be two directions on the plane of the road surface, for instance the transverse direction and the longitudinal direction of the road surface, which are coplanar and substantially mutually orthogonal.
  • another lighting apparatus comprising:
  • a lighting unit comprising a LED array
  • a lens comprising a first optical surface, configured to uniformize the illuminance of the light emitted by the LED array within a first distance in a first dimension, if the first dimension is tilted relative to the maximum intensity direction of the lens.
  • the first optical surface of the above lighting apparatus may be a toroidal surface.
  • the first case may also optionally be that the transverse direction of the road surface is tilted relative to the maximum intensity direction of the lens.
  • the illuminance on the road surface is uniformized, as the light passes through the lens, within a first distance along the first dimension, for example the transverse direction. That is to say, the light passing through the first surface, may cause a light spot or light stripe to be rendered into, respectively, a light strip in the transverse direction of the road surface or a rectangle- like area with a uniform illuminance on the road surface.
  • the second optical surface arranged on the lens the illuminance may be uniformized, as the light passes through the lens, within a second distance along the second dimension, for example the longitudinal direction, on the road surface. That is to say, the light passing through the second surface may cause a light spot or light stripe to be rendered into, respectively, a light strip in the longitudinal direction of the road surface or a rectangle-like area with a uniform illuminance on the road surface.
  • the light source is of the high light-intensity controllability-type, for instance an LED array.
  • an LED array is energy efficient and enables easy light-intensity control
  • the lens-based lighting apparatus with such a LED array inside may render the LED-emitted light more uniformly on the surface, such that the light from the LED is much easier for the lens to control and uniformly project on the road surface, with glare being reduced to some extent.
  • direct light emission from the lighting apparatus to the automotive driver is avoidable. In fact, such direct light emission to the automotive driver can cause visual discomfort to the driver's visual sense.
  • an LED array is also suitable for making products, which are small in both size and shape, with a long life time and less maintenance demand, thus making the lighting apparatus suitable for flyovers and overpasses or the like.
  • Figs. 1A-1B illustrate a perspective view and a side view, respectively, of one embodiment of a lens according to the present invention
  • Fig. 2 illustrates a plan view of a plane to which one embodiment of a lighting apparatus or lens according to the present invention may be applied;
  • Fig. 3 illustrates a top view of an application scenario suitable for some embodiments of a lighting apparatus or lens according to the present invention
  • Fig. 4 illustrates a front view of an application scenario suitable for one embodiment of a lighting apparatus or lens according to the present invention
  • Figs. 5A-5B illustrate a side cross-sectional view and a front view, respectively, of another embodiment of a lens according to the present invention
  • Fig. 6 illustrates a side view of one embodiment of a lighting apparatus according to the present invention
  • Figs. 1A-1B illustrate a perspective view and a side view, respectively, of one embodiment of a lens according to the present invention.
  • the lens 30 comprises a first optical surface 31 and a second optical surface 32.
  • the first optical surface 31 is configured to uniformize the illuminance of light, as the light passes through the first optical surface 31 , within a first distance in a first dimension, in a first case where the first dimension is tilted relative to the maximum intensity direction of the lens 30.
  • the second optical surface 32 is configured to uniformize the illuminance of light, as the light passes through the second optical surface 32, within a second distance in a second dimension.
  • a light source could be arranged in cooperation with lens 30 so as to provide a lighting apparatus.
  • the lens or lighting apparatus according to embodiments of the present invention may be applicable to various lighting scenarios so as to uniformly illuminate, in two dimensions, a spatial region.
  • those embodiments of a lens or a lighting apparatus can, for example, be applied to an illumination scenario on a plane.
  • Fig. 2 illustrates a plan view of a plane to which an embodiment of a lighting apparatus or a lens may be applied according to the present invention.
  • the plane P I ' has a first dimension Al ' as indicated by an arrow and a second dimension A2' as indicated by another arrow.
  • the plane P may be a road surface P I of a flyover, overpass and so on, as shown in Fig. 3.
  • the application scenario of the road surface lighting requires uniform illuminance of the road surface P I to contribute to safe driving of the car 60.
  • the lighting apparatuses 50 may, for example, be mounted on the side-wall fence along the road to provide uniform illuminance of the road surface P I .
  • the foregoing first dimension ⁇ and second dimension A2' may be selected to extend in two directions, for example transverse direction Al and longitudinal direction A2, on the road surface P I .
  • Transverse direction Al and longitudinal direction A2 are coplanar and substantially mutually orthogonal in this application scenario, thereby facilitating explanation and understanding of the configuration of lens 30 and lighting apparatus 50.
  • the area covered by illuminance from each lighting apparatus 50 may optionally be a rectangle- like region as shown in Fig.3, such that the whole road surface P I may be fully covered by illuminance from all lighting apparatuses 50 along the road surface P I .
  • Fig.4 illustrates a front view of an application scenario shown in Fig.3, which may be suitable for applying an embodiment of a lighting apparatus or lens according to the present invention.
  • lighting apparatus 50 comprises the light source 34 and the lens 30.
  • the lighting apparatus 50 is often arranged to illuminate the road surface P I, optionally, with the maximum intensity direction X3 of lens 30 inclined relative to road surface P I as shown in Fig.4. That is to say, in this case, lighting apparatus 50 may be arranged such that its maximum intensity direction X3 is tilted relative to the transverse direction Al of the road surface P I to get a better illuminance performance.
  • the lens 30 used therein is capable of illuminating, as uniformly as possible, road surface P I with its maximum intensity direction X3 tilted to transverse direction Al of the road surface P I .
  • the first optical surface 31 is configured to uniformize the illuminance of light, as the light passes through first optical surface 31, over the first distance of the full width of the road surface P I, along the transverse direction Al, in a first case where the transverse direction Al is tilted relative to the maximum intensity direction X3 of the lens 30.
  • the second optical surface 32 is configured to uniformize the illuminance of the light, as the light passes through second optical surface 32, over a second distance along longitudinal direction A2 of the road surface P I, optionally, in a second case where the longitudinal direction A2 is substantially orthogonal to the maximum intensity direction X3 of the lens 30.
  • the light beam might cause a light spot if it is directly projected onto the road surface P I .
  • the first light beam may be processed by said first optical surface 31 into a second light beam.
  • the second light beam might cause a light stripe with a uniform illuminance along transverse direction Al, if it is directly projected onto the road surface P I .
  • the second light beam may be processed by second optical surface 32 into a third light beam. And such a third light beam may cause a rectangle- like lighting region with a uniform illuminance if it is projected onto the road surface P I .
  • the second optical surface 32 can be configured so as to be first passed through by the light emitted by light source 34, before it passes through first optical surface 31. This is made possible by the fact that the first optical surface 31 and the second optical surface 32 can be arranged in no particular order within the lens 30.
  • the light passing through the lens 30 may be rendered as a rectangle-like lighting shown in Fig.3, with uniform illuminance on the road surface P I .
  • the second case mentioned above may, optionally, be such that the longitudinal direction A2 is substantially orthogonal to the maximum intensity direction X3 of the lens 30.
  • Such a second case is just an exemplary application, and not intended to be limited thereto, providing explanation and understanding of the corresponding embodiments in a simplified manner.
  • first surface 31 and second surface 32 can also be configured to respectively uniformize the illuminance in two different dimensions so as to render the light as a uniform illuminance projection within a specific area on the road surface
  • the first dimension and the second dimension exemplarily correspond to transverse direction Al and longitudinal direction A2 respectively, which are schematically illustrated as being coplanar in Fig. 2 and Fig.3.
  • the lens and the lighting apparatus are also applicable to those cases where the different dimensions, to be illuminated uniformly, are non-coplanar or mutually non-orthogonal.
  • first optical surface 31 may be a toroidal surface.
  • the first case may be such that the second dimension is substantially orthogonal to the tangential plane (not shown) of the toroidal surface. That is to say, the toroidal surface is arranged to uniformize the illuminance of light, as the light passes through the toroidal surface, over the first distance of the full width of the road surface P I in the transverse direction Al, in the first case where the transverse direction Al is tilted relative to the maximum intensity direction X3 of the lens 30, as shown in Fig.4, and longitudinal direction A2 is substantially orthogonal to the tangential plane of the toroidal surface.
  • the first optical surface 31 may take the form of a segmented tilt plane with an appropriate configuration.
  • the second optical surface 32 may be an axially symmetric aspheric surface.
  • Fig. 5A-5B illustrates a side cross-sectional view and a front view of another embodiment of lens 30A according to the present invention.
  • the second optical surface 32A as shown in Fig.5 is a micro-cylinder surface, that is to say, there may be a micro aspherical cylinder lens array laid out on an axially symmetric aspheric surface or a flat plane or any other base surface that can be apprehended by those skilled in the art, as shown in Fig.5.
  • the major axis, if any, of the micro-cylinder surface is aligned in the tangential plane of the toroidal surface.
  • such a lens is mounted optionally with the micro aspherical cylinder lens positioned vertically relative to the road surface P I, such that the lens is capable of producing, on the road surface P I, a horizontal elliptical beam which covers a longer distance along the longitudinal direction A2.
  • the lighting apparatuses may be installed with a larger interspace between them along the road surface P I, for example, 2m or more.
  • the abovementioned toroidal surface and axially symmetric aspheric surface may be arranged in a meniscus- like manner as shown in Fig.l .
  • the optical axis of the toroidal surface is de-centered with respect to the optical axis of the axially symmetric aspheric surface.
  • the optical axis of the toroidal surface may be arranged so as to be tilted or substantially parallel with respect to the optical axis of the axially symmetric aspheric surface so as to get a better lighting performance.
  • the base curvature radius (not shown) of the toroidal surface may be infinite to facilitate manufacturing of the lens 30.
  • lens 30 is illustrated as a separate and single element in the Figures associated with the aforementioned embodiments, lens 30 or 3 OA surely may be an optical system, and the optical system may comprise two or more separate optical parts some of which serve respectively as first optical surface 31 or second optical surface 32 described in the above embodiments, and may be used cooperatively.
  • the lens further comprises a reflective surface 33 shown in Fig. l, or a reflective surface 33A shown in Fig.5, arranged laterally to reflect the light so as to minimize light leakage of the lens.
  • reflective surface 33 or 33 A is configured to act as a total reflection surface for the lighting passing through the lens 30.
  • the light passing through the lens 30 may be optionally LED light.
  • Fig. 6 illustrates a side view of an embodiment of the lighting apparatus according to the present invention.
  • lighting apparatus 50 comprises a lens 30 as described in the aforementioned embodiments and a lighting unit 34 as a light source, with X3 representing the maximum intensity direction of lens 30, XI representing the optical axis of the first optical surface 31 and X2 representing the optical axis of the second optical surface 32.
  • the lighting unit 34 is a light source with a relatively high light-intensity controllability, for example an LED array. Since an LED array is energy efficient and enables easy light intensity control, cooperation between such an LED array and lens 30, enables the lighting apparatus 50 to render the light of the LED array more uniformly on the surface. Therefore, it can be avoided that automotive drivers on the road surface are directly exposed to light radiation from lighting apparatus 50, which generates safety problems or uncomfortable feelings, due to light flicker.
  • the lighting apparatus 50 in the above embodiment may further comprise a framework (not shown), which is structured to arrange the LED array in the neighborhood of the maximum intensity direction X3 or optical axis X2.
  • the LED array may be arranged, by the framework, in the maximum intensity optical axis X2 of an axially symmetric aspheric surface acting as second optical surface 32.
  • the optical axis XI may be arranged in a de-centered mode with respect to the optical axis X2. That is to say, the optical axis XI may be arranged to be substantially parallel (Fig.6) or tilted with respect to optical axis X2 so as to get better lighting performance.
  • the lighting apparatus 50 shown in Fig.6 may be mounted at a low height, with the maximum intensity direction X3 of lens 30 substantially pointing to the road center. And the illuminance of LED light is uniformized so as to obtain a rectangle- like lighting area with uniform illuminance on road surface P I, as shown in Fig.3, whereby glare on the road is reduced to some extent.
  • Such a lighting apparatus comprises a lighting unit and a lens.
  • the lighting unit may optionally be a light source with high light-intensity controllability, for instance an LED array.
  • the lens in the lighting unit comprises a first optical surface, which is configured to uniformize the illuminance of the light emitted by the LED array within a first distance in a first dimension, in the case that the first dimension is tilted relative to the maximum intensity direction of the lens.
  • the first dimension may also take the form of one direction on the road surface P I, for instance transverse direction Al on the road surface P I, and the first distance may be the distance of the half or full width of road surface P I .
  • this lighting apparatus When mounted at the position where lighting apparatus 50 is mounted in Fig.4, this lighting apparatus may also be applicable, for some purposes, to road lighting scenarios as shown in Fig.4.
  • LED light After passing through the first optical surface, LED light may be rendered so as to form another light beam, which may produce a light stripe with uniform illuminance in the transverse direction Al when projected onto the road surface P I .
  • a light stripe on the road surface P I may be used as a mark pattern for traffic.
  • such a light stripe can be produced by the lighting apparatus described herein for various applications other than road-lighting scenarios.
  • the first optical surface of such a lighting apparatus may take the form of a toroidal surface.
  • the base curvature radius of the toroidal surface may be arranged to be infinite to facilitate the manufacture of the lens and the toroidal surface thereof.
  • the light processing method comprises a first illuminance-uniformizing step along a first dimension and a second illuminance-uniformizing step along a second dimension and can be performed in a number of road lighting application scenarios.
  • the first illuminance-uniformizing step is performed to uniformize the illuminance of light within a first distance in a first dimension, if the first dimension is tilted relative to the direction of the light.
  • the second dimension may be substantially orthogonal to the direction of the light.
  • the above two steps may optionally be performed in the case that the first dimension and the second dimension are substantially mutually orthogonal, thereby facilitating the understanding of how the steps are performed.
  • the light processed in this method is, optionally, light with high light-intensity controllability.
  • the light may be a LED light. Since an LED array is energy efficient and enables easy light-intensity control, lighting with more uniform illuminance could be provided, resulting in a bigger lighting area with more uniform illuminance if the light is projected onto a surface, after being processed by an embodiment of this light processing method.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

L'invention concerne une lentille (30) et un procédé de traitement de lumière correspondant. La lentille comprend une première surface optique (31) conçue pour uniformiser l'éclairement de la lumière, lorsque ladite lumière la traverse, sur une première distance dans une première dimension dans un premier cas où ladite première dimension est inclinée par rapport à la direction d'intensité maximale de ladite lentille, et une seconde surface optique (32) conçue pour uniformiser l'éclairement de la lumière, lorsque ladite lumière la traverse, sur une seconde distance dans une seconde dimension. La lentille permet à la lumière de se déplacer le long d'une direction inclinée par rapport à la surface afin d'illuminer uniformément une partie d'une surface.
PCT/IB2011/055733 2010-12-30 2011-12-16 Lentille et appareil d'éclairage comprenant cette lentille WO2012090108A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNPCT/CN2010/080494 2010-12-30
CN2010080494 2010-12-30

Publications (1)

Publication Number Publication Date
WO2012090108A1 true WO2012090108A1 (fr) 2012-07-05

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PCT/IB2011/055733 WO2012090108A1 (fr) 2010-12-30 2011-12-16 Lentille et appareil d'éclairage comprenant cette lentille

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112904582A (zh) * 2021-02-19 2021-06-04 南昌欧菲光电技术有限公司 光学镜组、光学模组及设备

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030128342A1 (en) * 2000-10-06 2003-07-10 Mitsuhiro Wada Illumination optical unit and projection display comprising it
CN101487573A (zh) * 2008-01-17 2009-07-22 宁波燎原灯具股份有限公司 Led路灯配光系统
WO2009092400A1 (fr) * 2008-01-25 2009-07-30 We-Ef Leuchten Gmbh & Co. Kg Dispositif d’éclairage
CN201401724Y (zh) * 2009-04-13 2010-02-10 珠海泰坦新能源系统有限公司 道路照明专用led光源透镜
EP2135005B1 (fr) * 2007-04-05 2010-10-06 Koninklijke Philips Electronics N.V. Dispositif de mise en forme de faisceaux lumineux
WO2010111961A1 (fr) * 2009-04-01 2010-10-07 香港理工大学 Lentille de distribution de lumière pour réverbère à del
WO2011055941A2 (fr) * 2009-11-04 2011-05-12 주식회사 아주광학 Lentille pour lampe à del pouvant répartir la lumière en fonction des besoins
EP2322973A1 (fr) * 2009-11-11 2011-05-18 Foxsemicon Integrated Technology, Inc. Lentille et lampe à diode électroluminescente l'utilisant

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030128342A1 (en) * 2000-10-06 2003-07-10 Mitsuhiro Wada Illumination optical unit and projection display comprising it
EP2135005B1 (fr) * 2007-04-05 2010-10-06 Koninklijke Philips Electronics N.V. Dispositif de mise en forme de faisceaux lumineux
CN101487573A (zh) * 2008-01-17 2009-07-22 宁波燎原灯具股份有限公司 Led路灯配光系统
WO2009092400A1 (fr) * 2008-01-25 2009-07-30 We-Ef Leuchten Gmbh & Co. Kg Dispositif d’éclairage
WO2010111961A1 (fr) * 2009-04-01 2010-10-07 香港理工大学 Lentille de distribution de lumière pour réverbère à del
CN201401724Y (zh) * 2009-04-13 2010-02-10 珠海泰坦新能源系统有限公司 道路照明专用led光源透镜
WO2011055941A2 (fr) * 2009-11-04 2011-05-12 주식회사 아주광학 Lentille pour lampe à del pouvant répartir la lumière en fonction des besoins
EP2322973A1 (fr) * 2009-11-11 2011-05-18 Foxsemicon Integrated Technology, Inc. Lentille et lampe à diode électroluminescente l'utilisant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112904582A (zh) * 2021-02-19 2021-06-04 南昌欧菲光电技术有限公司 光学镜组、光学模组及设备

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