EP4264116A1 - Kollimator und tragbare leuchte - Google Patents
Kollimator und tragbare leuchteInfo
- Publication number
- EP4264116A1 EP4264116A1 EP22714109.0A EP22714109A EP4264116A1 EP 4264116 A1 EP4264116 A1 EP 4264116A1 EP 22714109 A EP22714109 A EP 22714109A EP 4264116 A1 EP4264116 A1 EP 4264116A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- collimator
- section
- exit surface
- cross
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
- G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
-
- 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
- F21L4/005—Electric lighting devices with self-contained electric batteries or cells the device being a pocket lamp
-
- 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
- F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
- F21V5/004—Refractors for light sources using microoptical elements for redirecting or diffusing light using microlenses
-
- 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
- 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
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
- G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
- G02B19/0066—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED in the form of an LED array
-
- 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
- G02B27/30—Collimators
-
- 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
-
- 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
- G02B3/0043—Inhomogeneous or irregular arrays, e.g. varying shape, size, height
-
- 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
- G02B3/0056—Arrays characterized by the distribution or form of lenses arranged along two different directions in a plane, e.g. honeycomb arrangement of lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0075—Arrays characterized by non-optical structures, e.g. having integrated holding or alignment means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
- F21S41/322—Optical layout thereof the reflector using total internal reflection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
- F21S43/31—Optical layout thereof
- F21S43/315—Optical layout thereof using total internal reflection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/40—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the combination of reflectors and refractors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/40—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the combination of reflectors and refractors
- F21S43/402—Total internal reflection [TIR] collimators
-
- 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
- F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
-
- 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
- F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
- F21V5/005—Refractors for light sources using microoptical elements for redirecting or diffusing light using microprisms
Definitions
- the invention relates to a collimator for collimating light by means of a plurality of optical surfaces, each of which forms optical boundary surfaces with a change in optical density, the collimator having an essentially planar light entry surface, a convex light exit surface and a totally reflecting side wall which connects the light entry surface to the light exit surface connects.
- the invention relates to a portable lamp with such a collimator.
- Collimators for collimating light are known in particular in connection with portable or mobile lights according to the prior art, with the various collimators having different geometries for different areas of application.
- Lenses with a planar or concave light entry surface and a convex light exit surface are known, for example.
- TIR collimators So-called total internal reflection collimators (TIR collimators) are also known, which have a converging lens and a reflector part that completely surrounds the converging lens.
- the light entry surface of such a TIR collimator is usually divided into two sections, namely a planar, convex or concave light entry surface of the converging lens and an essentially cylindrical light entry surface of the reflector part.
- the central converging lens and the reflector part also have different light exit surfaces, which is why TIR collimators usually have a complex geometry.
- straight-walled light guides which are designed in the shape of a truncated cone in cross section with a flat light entry surface and a flat light exit surface.
- So-called compound parabolic concentrator collimators CPC collimators
- CPC collimators have a geometry comparable to a straight-walled light guide, which also have a flat light entry surface and a flat light exit surface, but whose side walls are convex.
- DTIR collimators dielectric total internal reflection collimators
- DTIR collimators have a light exit surface that is completely convex.
- An ideal light distribution is understood to mean a light distribution that has a substantially constant or homogeneous light intensity within a definable light cone, that is free of reflections, lines and other rings with a locally deviating light intensity and that has a clearly defined edge. Outside the edge and therefore outside the intended light distribution, the light intensity should, if possible, disappear completely.
- the light exit surface of the claimed DTIR collimator has refractive structures.
- the refractive structures on the light exit surface of the DTIR collimator mean that each light beam leaves the light exit surface with a small cone angle, which is small compared to the cone angle of the entire light distribution. This does not enlarge the light cone of the entire light distribution, but it does local intensity maxima are effectively prevented which would otherwise be recognizable as undesired local intensity maxima and/or intensity minima, for example in the form of rings, lines or other reflections without a definable geometry.
- the light-refracting structures thus cause the light to be mixed within the light cone, which is why an essentially constant or homogeneous light intensity results within the light cone and therefore within the desired light distribution both in the near range and in the far range.
- the arrangement of the microlenses on the light exit surface of a claimed DTIR collimator results in a collimator with a comparatively compact design, which is also associated with a small light exit surface compared to known collimators. Furthermore, the collimator according to the invention is advantageously essentially etendue-limited.
- a first advantageous embodiment of the invention provides for the light-refracting structures to be in the form of concave and/or convex microlenses or as diffuse light-refracting structures.
- the geometry, number, arrangement and density of concave and/or convex microlenses can be arranged on the light exit surface of the collimator in such a way that a homogeneous light distribution within the emitted light cone results, even taking into account the geometry of the collimator and the light source used. It is preferably provided that the microlenses are spherical or aspherical and are preferably arranged square, hexagonal, ring-shaped or phyllotaxially on the light exit surface of the collimator.
- Such microlenses preferably have a diameter of 0.3 mm to 4 mm.
- the essentially planar light entry surface is planar, convex or concavely curved.
- this surface has a polygonal, square or round cross-section within the scope of an advantageous development of the invention.
- the surfaces of the microlenses can be essentially the same, i.e. the sizes of the surfaces can essentially be the same as the average of the surfaces or not significantly deviate from it.
- the radii of curvature of the microlenses can also be essentially identical.
- the microlenses have a varying surface.
- the surface size of each microlens correlates with the radius of curvature of the microlens under consideration in such a way that the radius of curvature increases with increasing surface size.
- the radius of curvature is therefore proportional to the surface area of the microlens.
- the surface sizes and the radii of curvature are preferably selected in such a way that all microlenses have a substantially equiangular rising flank at the transition to the envelope of the light exit surface. Smaller microlenses therefore have an identical surface inclination at the transitions to the envelope of the light exit surface compared to larger microlenses, which means that comparatively smaller microlenses make an identical contribution to light mixing.
- the side wall of the collimator is at least partially concave, convex or flat in cross section, with a side wall with a concave cross section preferably being spherical, aspheric, hyperbolic, parabolic, elliptical or Cartesian-oval in shape, with the cross-sectional plane being the optical axis of the collimator contains.
- the side wall can also have several areas with different curvatures, for example a lower area with a concave curvature, which merges into an area with a convex curvature via a turning point.
- the light is completely reflected there within the collimator and, after a first and possibly a further total reflection, reaches the light exit surface, where the light leaves the collimator within a well-defined light cone via the light-refracting structures.
- the refractive concave light exit surface is thus designed in such a way that both the direct light that reaches the light exit surface directly from the light entry surface and the light reflected on the side walls exit completely.
- the light exit surface preferably has a spherical or aspherical curvature and is preferably round, polygonal or square in cross section.
- a spherical light exit surface more precisely, a spherically designed enveloping surface of the light exit surface, preferably has a radius of curvature of 4 mm to 20 mm, preferably 3 mm to 7 mm, particularly preferably a radius of curvature of 5 mm to 6 mm.
- the collimator In order to fasten the collimator within a lamp, in particular within a portable lamp, the collimator has a retaining edge which at least partially or completely surrounds the light exit surface.
- the collimator can be made of different transparent materials, with the collimator preferably being made of polycarbonate (PC), polymethyl methacrylate (PMMA), glass, cyclo-olefin copolymer (COC), cyclo-olefin polymer (COP), polymethacrylmethylimide (PMMI) or silicone is made.
- PC polycarbonate
- PMMA polymethyl methacrylate
- COC cyclo-olefin copolymer
- COP cyclo-olefin polymer
- PMMI polymethacrylmethylimide
- silicone silicone
- the collimator is the collimator of a portable lamp with a light source, in particular a flashlight or headlight
- a preferred embodiment of the invention provides that there is a distance, in particular a distance, between the light source and the light entry surface of the collimator noh 0.1 mm to 0.5 mm, which is wide enough to ensure sufficient heat dissipation and is so narrow that the light reaches the light entry surface without any significant loss of power, where the light emitted by the light source is in the Essentially fully collimated. Provision is preferably made for the distance between the light entry surface of the collimator and the light source to be less than or equal to 0.2 times the width of the light source.
- a particularly preferred embodiment of the invention provides that the geometry of the light source is matched to the geometry of the light entry surface in such a way that a) a light source with a square cross section has a light entry surface with a square cross section or b) a light source with a round cross section, a light entry surface with a round cross section or c) a light source with a polygonal cross section is assigned a light source with a corresponding polygonal cross section.
- the geometry of the light entry surface is essentially independent of the geometry of the light exit surface, which can also be square, polygonal or round in plan view, but a correlation with the geometry of the light entry surface is not prescribed.
- a round light exit surface can be assigned to a square light entry surface.
- the light entry surface is designed to be planar or even.
- the light entry surface has an area which is 1 to 2 times the area of the light source.
- the light source has one or more light source elements, which preferably have a flat light exit surface. All of the light sources mentioned are preferably in the form of light-emitting diodes (LEDs). Accordingly, the light sources do not have a dome and are therefore designed without a dome. A cathedral is a spherical dome made of transparent plastic that covers the LED.
- 1 is a cross-sectional view of a first collimator
- FIG. 2 is a cross-sectional view of a second collimator
- FIG. 5 shows different arrangements of microlenses
- FIG. 6 shows a portable lamp with a collimator.
- the collimator 1 shows a first concrete embodiment of a collimator 1 according to the invention in cross section.
- the collimator 1 has a completely flat and square light entry surface 2 with a width Bi of 8.41 mm.
- the light entry surface 2 merges directly into a light guide section with a square cross-section and a side wall 3 which, in the exemplary embodiment shown, has a lower region 31 with a concave curvature and an upper region 32 with a convex curvature.
- the concave (lower) area 31 and the convex (upper) area 32 of the side wall 3 turning points 33 are formed along the peripheral line, at which points a tangent applied to the side wall 3 changes sides.
- the collimator 1 has a convex-spherical light exit surface 4 whose envelope (shown in broken lines) has a radius of curvature Ri of 16.5 mm.
- convex microlenses 5 with a radius of curvature R2 of 3.0 mm are arranged covering the entire area.
- the light exit surface 4 is surrounded at least in sections by a holding edge 7 which has a thickness d of 1.96 mm and a diameter Di of 20 mm.
- the light exit surface 4 has a diameter D2 of 14.1 mm at the transition to the holding edge 7 .
- the collimator 1 has a width B2 of 14.0 mm.
- the overall height H of the collimator 1 is 20.22 mm.
- the collimator 1 are two Associated light source elements 61, 62, which together form a light source 6 and which are arranged at a slight distance from the light entry surface 2 such that the light emitted by the light source elements 61, 62 is almost completely coupled into the collimator 1.
- the collimator 1 shows a second concrete embodiment of a collimator 1 according to the invention in cross section.
- the collimator 1 has a completely flat and square light entry surface 2 with a width Bi of 2.64 mm.
- the light entry surface 2 merges into a light guide section with a side wall 3, which is completely concave in the illustrated embodiment.
- the radius of curvature of the side wall 3 is not constant in the exemplary embodiment shown and has a comparatively small radius of curvature in the lower region of the side wall 3, which becomes steadily larger towards the top, i.e. towards the light exit surface 4.
- the collimator 1 has a convex spherical light exit surface 4, whose envelope (shown in broken lines) has a radius of curvature Ri of 4.95 mm.
- Convex microlenses 5 with a radius of curvature R2 of 1.42 mm are arranged over the entire area on the light exit surface 4 .
- the light exit surface 2 is surrounded at least in sections by a holding edge 7 which has a thickness d of 0.91 mm and a diameter Di of 10.9 mm.
- the light exit surface 4 has a diameter D2 of 8.14 mm at the transition to the holding edge 7 .
- the collimator 1 has a width B2 of 5.22 mm.
- the overall height H of the collimator 1 is 7.71 mm.
- the collimator 1 is assigned a light source 6 which is arranged at a slight distance from the light entry surface 2 in such a way that the light emitted by the light source 6 is coupled almost completely into the collimator 1 .
- an imaginary tangential extension 11 of the side wall 3 intersects the light exit surface 4. This means that between the imaginary tangential extension 11 of the side wall 3 and a direct linear connection 12 of the edges of the light exit surface 4 and the side wall 3 creates a positive angle a. In the illustrated embodiment, the angle a is 40.1°. This advantageously reduces any losses in light output.
- FIG. 3 shows a further embodiment of a collimator 1 according to the invention in a perspective view.
- the collimator 1 has a square light entry surface 2 and a—in a top view—also square light exit surface 4, which, however, forms a convex spherical light exit surface 4 on the outside with microlenses 5 arranged to cover the entire surface.
- the light entry surface 2 merges into a light guide section with the side wall 3 .
- a holding edge 7 is arranged on two opposite sides of the collimator 1, so that the holding edge 7 only encompasses the collimator 1 in certain areas.
- FIG. 4 shows a further embodiment of a collimator 1 according to the invention with a square light entry surface 2 and a light exit surface 4 with a circular cross section, which is completely encompassed by an annular holding edge 7 .
- the light entry surface 2 merges into a light guide section with the side wall 3 .
- the light exit surface 4 is otherwise designed to be convex-spherical and has convex microlenses 5 covering the entire area.
- the microlenses 5 can be arranged in different ways on the light exit surface 4 of a collimator 1 .
- 5a, b, c and d show different and preferred arrangements of the microlenses 5, which can be adapted to the geometry of the collimator and to the intended light distribution as required.
- Fig. 5a shows a square arrangement of the microlenses 5.
- Fig. 5b shows a hexagonal arrangement of the microlenses 5.
- An annular arrangement of the microlenses 5 is shown in Fig. 5c and finally Fig. 5d discloses a phyllotaxic arrangement of the microlenses 5.
- a collimator 1 of the type described above is used as a collimator 1 for a portable lamp 8, in particular a flashlight 81, within the scope of a concrete embodiment of the invention.
- Fig. 6 shows a schematic representation of the cross-sectional view of a flashlight 81 with a collimator 1, a light source 6, a housing 9 and a power supply mounted therein in the form of an accumulator 10.
- the accumulator 10 is connected to control electronics (not shown) with which the instantaneous light output of the light source 6 can be controlled automatically or manually.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Lenses (AREA)
- Endoscopes (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021108747.3A DE102021108747A1 (de) | 2021-04-08 | 2021-04-08 | Kollimator und tragbare Leuchte |
| PCT/DE2022/100203 WO2022214127A1 (de) | 2021-04-08 | 2022-03-15 | Kollimator und tragbare leuchte |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4264116A1 true EP4264116A1 (de) | 2023-10-25 |
Family
ID=81074023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22714109.0A Pending EP4264116A1 (de) | 2021-04-08 | 2022-03-15 | Kollimator und tragbare leuchte |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US12416391B2 (de) |
| EP (1) | EP4264116A1 (de) |
| JP (1) | JP2024512884A (de) |
| KR (1) | KR20230167038A (de) |
| CN (1) | CN116829868A (de) |
| AU (1) | AU2022255894A1 (de) |
| DE (1) | DE102021108747A1 (de) |
| WO (1) | WO2022214127A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4517403A1 (de) * | 2023-08-29 | 2025-03-05 | Alexander Otto | Farbmischende sammeloptik mit verbesserter funktionalität |
| DE102024119887A1 (de) * | 2024-07-12 | 2026-01-15 | Ledlenser GmbH & Co. KG | Kollimator und Leuchte mit einem Kollimator |
Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6974236B2 (en) | 2002-02-05 | 2005-12-13 | Canon Kabushiki Kaisha | Illuminating apparatus |
| US20050201100A1 (en) * | 2003-09-08 | 2005-09-15 | Cassarly William J. | Led lighting assembly |
| US7246923B2 (en) * | 2004-02-11 | 2007-07-24 | 3M Innovative Properties Company | Reshaping light source modules and illumination systems using the same |
| CN101413639B (zh) * | 2007-10-16 | 2011-02-16 | 富士迈半导体精密工业(上海)有限公司 | 发光二极管照明装置 |
| DE102008027234B4 (de) * | 2008-06-06 | 2014-05-28 | Ifm Electronic Gmbh | Beleuchtungseinheit und Optikelement |
| US8075165B2 (en) * | 2008-10-14 | 2011-12-13 | Ledengin, Inc. | Total internal reflection lens and mechanical retention and locating device |
| WO2012040414A2 (en) * | 2010-09-23 | 2012-03-29 | Light Prescriptions Innovators, Llc | Shell integrator |
| US8496354B2 (en) * | 2010-11-24 | 2013-07-30 | Robe Lighting S.R.O. | Beam control system for an LED luminaire |
| JP5548153B2 (ja) * | 2011-03-01 | 2014-07-16 | 株式会社ユーテクノロジー | 発光ダイオード照明装置および発光ダイオード照明用部材 |
| CN102829430B (zh) | 2011-06-13 | 2016-12-07 | 蔡子丰 | 发光灯体聚光透镜结构及相应的照明装置 |
| CN102322610A (zh) | 2011-06-24 | 2012-01-18 | 深圳市众明半导体照明有限公司 | 一种聚光透镜、灯具及照相机 |
| US8740417B2 (en) * | 2011-09-01 | 2014-06-03 | Huizhou Light Engine Limited | Secondary light distribution lens for multi-chip semiconductor (LED) lighting |
| WO2013042523A1 (ja) * | 2011-09-21 | 2013-03-28 | シャープ株式会社 | 発光装置および該発光装置を備えた照明装置 |
| DE102011085315A1 (de) * | 2011-10-27 | 2013-05-02 | Automotive Lighting Reutlingen Gmbh | Scheinwerferprojektionsmodul für ein Kraftfahrzeug |
| JP5641547B2 (ja) * | 2012-04-10 | 2014-12-17 | マイクロコントロールシステムズ株式会社 | 配光分散制御型led照明装置及び該装置を用いた照明方法 |
| US9416937B2 (en) | 2012-06-06 | 2016-08-16 | Coast Cutlery Co. | Thin profile lens for flashlight |
| US8641230B1 (en) * | 2012-10-22 | 2014-02-04 | Ledengin, Inc. | Zoom lens system for LED-based spotlight |
| CN104820289B (zh) * | 2014-12-13 | 2017-11-10 | 深圳市科曼医疗设备有限公司 | 积分棒、匀光装置、光源准直准装置、投影机和手术灯 |
| WO2018141846A1 (en) * | 2017-02-02 | 2018-08-09 | Philips Lighting Holding B.V. | A dielectric collimator with a rejecting center lens |
| WO2018225376A1 (ja) * | 2017-06-06 | 2018-12-13 | コニカミノルタ株式会社 | 照明ユニット |
| DE102018118684A1 (de) * | 2018-08-01 | 2020-02-06 | Ledlenser GmbH & Co. KG | Optischer Kollimator |
| EP3911975A1 (de) * | 2019-01-15 | 2021-11-24 | Signify Holding B.V. | Optisches system und beleuchtungsvorrichtung |
| US11300270B1 (en) * | 2021-03-01 | 2022-04-12 | Dialight Corporation | Optics for edges of a structure to minimize light leakage |
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2021
- 2021-04-08 DE DE102021108747.3A patent/DE102021108747A1/de not_active Withdrawn
-
2022
- 2022-03-15 CN CN202280012801.2A patent/CN116829868A/zh active Pending
- 2022-03-15 JP JP2023549591A patent/JP2024512884A/ja active Pending
- 2022-03-15 US US18/277,611 patent/US12416391B2/en active Active
- 2022-03-15 AU AU2022255894A patent/AU2022255894A1/en active Pending
- 2022-03-15 WO PCT/DE2022/100203 patent/WO2022214127A1/de not_active Ceased
- 2022-03-15 EP EP22714109.0A patent/EP4264116A1/de active Pending
- 2022-03-15 KR KR1020237033435A patent/KR20230167038A/ko active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| KR20230167038A (ko) | 2023-12-07 |
| US12416391B2 (en) | 2025-09-16 |
| AU2022255894A1 (en) | 2023-09-07 |
| WO2022214127A1 (de) | 2022-10-13 |
| CN116829868A (zh) | 2023-09-29 |
| US20240125454A1 (en) | 2024-04-18 |
| DE102021108747A1 (de) | 2022-10-13 |
| JP2024512884A (ja) | 2024-03-21 |
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