EP2788682A1 - Illumination angle adjusting device and illuminating device - Google Patents
Illumination angle adjusting device and illuminating deviceInfo
- Publication number
- EP2788682A1 EP2788682A1 EP12743419.9A EP12743419A EP2788682A1 EP 2788682 A1 EP2788682 A1 EP 2788682A1 EP 12743419 A EP12743419 A EP 12743419A EP 2788682 A1 EP2788682 A1 EP 2788682A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- angle adjusting
- illumination angle
- adjusting device
- lens
- reflective cup
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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
- 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
- F21V14/04—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
-
- 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
- F21W2131/40—Lighting for industrial, commercial, recreational or military use
- F21W2131/405—Lighting for industrial, commercial, recreational or military use for shop-windows or displays
-
- 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 present invention relates to an illumination angle adjusting device and an illuminating device comprising the illumination angle adjusting device.
- spot light is a common illuminating device and widely used in, for instance, exhibition instruments.
- LED lamp light sources also start to be used in spot lights.
- the spot light usually needs to be rotated to change an illumina- tion area.
- the traditional spot light has no problem in rotation, but an LED spot light has some problem in rotation.
- the LED spot light will use aluminum alloy as the heat sink, then the LED spot light is heavier than the traditional spot light due to such heat sink. Therefore, an operator should rotate the whole heavy LED spot light when the rotating direction should be adjusted.
- the object of the present invention lies in providing an illumination angle adjusting device, with which an illumination area can be adjusted without rotating the whole spot light.
- An illumination angle adjusting device for an illuminating device is provided according to the present invention, wherein the illuminating device comprises a light source, characterized in that the illumination angle adjusting device comprises a base accommodating the light source and a ro- tatable optical device mounted on the base and rotated with respect to the light source.
- the present invention provides a rotatable optical device that is rotated with respect to the light source, so that an illumination region can be adjusted via rotation of the optical device. Moreover, a base is provided for arranging the rotatable optical device.
- the base is a reflective cup.
- the base is a reflective cup, light incident on the base will be reflected to further emerge through the rotatable optical device, so that the optical efficiency is further improved.
- the rotatable optical device comprises a lens. Consequently, the illumination area is adjusted via rotation of the lens .
- the lens is at least partially accommodated in the reflective cup, and is offset around a rotating axis lo- cated in a surface perpendicular to an optical axis of the light source.
- the lens By offsetting the lens around the rotating axis located in a surface perpendicular to the optical axis of the light source, dif- ferent orientations of the lens with respect to the optical axis can be adjusted, and further the illumination area is adjusted .
- the reflective cup is rotated with respect to the lens to jointly define an enclosed cavity for accommodating the light source, which thereby will assure light from the light source not to leak from the enclosed cavity, and further improves the optical efficiency.
- the reflective cup is a hemispherical body open- ing in a light-emitting direction, and the rotating axis of the lens is a diameter of the hemispherical body.
- the ro- tatable optical device comprises a trunnion
- the reflective cup has a hole on an edge of the reflective cup for ac- commodating the trunnion, therefore, the lens is rotated via support from the trunnion in the hole.
- the illumination angle adjusting device further comprises an adjusting piece anti-torsionally connected with the trunnions via the hole.
- the rotation of the lens is adjusted by adjusting the adjusting piece.
- the reflective cup further comprises a protrusion on the edge of the reflective cup, and respective hole is opened in respective protrusion.
- the ro- tatable optical device further comprises a reflective region as a sidewall region around the lens.
- the reflective region can complementarily adjust the illumination area; accordingly, it is more flexible to adjust the illumination area by using the reflective region.
- the present invention further relates to an illuminating device, and specifically, a spot light.
- the spot light is an LED spot light.
- the illuminating device comprises a circuit board for arranging the light source and the base thereon.
- the present invention further relates to an exhibition instrument comprising the illuminating device .
- the illumination angle adjusting device of the present appli- cation can adjust the illumination area by merely rotating the lens, and has the prominent advantage of convenient adjustment .
- Fig. 1 is a 3D view of an illuminating device of one embodiment of the present invention
- Fig. 2 is a 3D view of an illumination angle adjusting device of one embodiment of the present invention
- Fig. 3 is a local sectional view of an illumination angle adjusting device of one embodiment of the present invention
- Fig. 4 and Fig. 5 are schematic diagrams of rotation of a lens of an illumination angle adjusting device of one embodiment of the present invention
- Fig. 6 shows an adjusting piece of an illumination angle adjusting device of one embodiment of the present invention
- Fig. 7 is a sectional view of assembling an illuminating device of one embodiment of the present invention.
- Fig. 8a and Fig. 8b are comparative schematic diagrams of rotations of a lens with respect to a reflective cup in an il- lumination angle adjusting device of one embodiment of the present invention.
- Fig. 1 is a 3D view of an illuminating device 100 of one embodiment of the present invention.
- the illuminating device 100 comprises a heat sink 16, a mounting ring 15 and other parts of the illuminating device 100 that are not shown in Fig. 1.
- the illuminating device 100 of the present invention differs from prior illuminating devices in that the illuminating device 100 of the present invention comprises an illu- mination angle adjusting device 10, in which a rotatable optical device 2 is arranged.
- Fig. 2 is a 3D view of the illumination angle adjusting device 10 of one embodiment of the present invention.
- the rotatable optical device 2 comprises a lens, and preferably, can further comprise a reflective region 13 as a sidewall region around the lens 12.
- the illumination angle adjusting device 10 further comprises a base enclosing a light source 4.
- the base herein can be configured as a reflective cup 1.
- the lens 12 can be at least partially accommodated in the reflective cup 1 and is offset around a rotation axis 14 in a surface perpendicular to an optical axis of the light source 4.
- the reflective cup 1 is a hemispherical body opening in a light-emitting direction.
- the rotation axis 14 of the lens 12 is a diameter of the hemispherical body.
- the lens 12 comprises trun- nions 6, and the reflective cup 1 has holes 8 on an edge 7 of the reflective cup 1 for accommodating the trunnions 6, such that the lens 12 is rotatably supported on the reflective cup 1.
- the reflective cup 1 further comprises protrusions 9 on the edge 7 of the reflective cup 1, and respective hole 8 is opened in respective protrusion 9.
- the illumination angle adjusting device 10 further comprises an adjusting piece 11 anti-torsionally connected with the trunnion 6 via the hole 8.
- Fig. 3 is a local sectional view of the illumination angle adjusting device 10 of one embodiment of the present invention. It can be seen from Fig.
- Fig. 4 and Fig. 5 are schematic diagrams of rotation of the lens 12 of the illumination angle adjusting device 10 of one embodiment of the present invention.
- the lens 12 is rotated around the rotating axis 14.
- the rotating axis 14 is located in the surface perpendicular to the optical axis of the light source 4 or is a straight line on an opening edge of the reflective cup 1 passing through an opening center. It can be seen from Fig. 4 and Fig. 5 that the position of a center of the lens 12 is changed when the lens 12 is rotated.
- Fig. 6 shows the adjusting piece 11 of the illumination angle adjusting device 10 of one embodiment of the present inven- tion.
- the adjusting piece 11, seen more clearly form Fig. 6, is configured for facilitating manual operations.
- Fig. 7 is a sectional view of assembling the illuminating device 100 of one embodiment of the present invention.
- the base of the illumination angle adjusting device 10 of the present invention which is the reflective cup 1 in the pre- sent embodiment, is arranged on the circuit board 3, and a heat sink 16 is provided below the circuit board 3.
- Fig. 8a and Fig. 8b are comparative schematic diagrams of rotations of the lens 12 with respect to the reflective cup 1 in the illumination angle adjusting device 10 in one embodi- ment of the present invention. It can be seen from Fig. 8a and Fig. 8b that the illumination area is adjusted after the lens 12 is rotated with respect to the base (which is the reflective cup 1 in the present embodiment) . Apart from the lens 12, the reflective region 13 as the sidewall region around the lens 12 also can serve a complementary function of adjusting the illumination area.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Securing Globes, Refractors, Reflectors Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201110407553.5A CN103162242B (en) | 2011-12-08 | 2011-12-08 | Illumination angle adjusting device and illuminating device |
PCT/EP2012/064394 WO2013083299A1 (en) | 2011-12-08 | 2012-07-23 | Illumination angle adjusting device and illuminating device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2788682A1 true EP2788682A1 (en) | 2014-10-15 |
EP2788682B1 EP2788682B1 (en) | 2016-04-06 |
Family
ID=46614456
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12743419.9A Not-in-force EP2788682B1 (en) | 2011-12-08 | 2012-07-23 | Illumination angle adjusting device and illuminating device |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2788682B1 (en) |
CN (1) | CN103162242B (en) |
WO (1) | WO2013083299A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB201512014D0 (en) * | 2015-07-09 | 2015-08-19 | Aurora Ltd | IP rated luminaires |
CN105371183A (en) * | 2015-11-28 | 2016-03-02 | 李小鹏 | Energy-saving LED ceiling lamp capable of rotating by angle |
CN106838682A (en) * | 2017-03-02 | 2017-06-13 | 陕西理工学院 | A kind of solar energy hand railway signal lamp |
CN107420800B (en) * | 2017-08-22 | 2023-03-10 | 漳州立达信光电子科技有限公司 | Rotatory down lamp of 3D |
CN108571705B (en) * | 2017-10-24 | 2024-06-21 | 常州星宇车灯股份有限公司 | Dimming mechanism for automobile headlamp |
CN109556000A (en) * | 2018-12-29 | 2019-04-02 | 中山市流丽照明有限公司 | A kind of lens LED line of angle adjustable |
CN110353490B (en) * | 2019-07-26 | 2021-11-09 | 九阳股份有限公司 | Steam heating cooking utensil |
CN117167688A (en) * | 2023-09-12 | 2023-12-05 | 派洛奇科技(广东)有限公司 | Energy-saving ceiling lamp |
CN117968005B (en) * | 2024-04-01 | 2024-06-11 | 江苏恒天源照明集团有限公司 | High-efficient solar energy power generation street lamp with automatically regulated function |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19946350A1 (en) * | 1999-09-28 | 2001-03-29 | Bosch Gmbh Robert | Projection headlamp for illumination arrangement for motor vehicle has reflector rotatable together with light source about rotation axis near second main point of projection lens |
US6742918B2 (en) * | 2002-04-12 | 2004-06-01 | Guide Corporation | Movable condenser lens |
KR20060129180A (en) * | 2004-03-11 | 2006-12-15 | 모리야마 산교 가부시키가이샤 | Socket device |
JP4697215B2 (en) * | 2007-11-20 | 2011-06-08 | 市光工業株式会社 | Vehicle lighting |
US8061868B2 (en) * | 2008-06-01 | 2011-11-22 | Jack Dubord | Adjustable LED lighting system, kit and method of using same |
US8002435B2 (en) * | 2008-06-13 | 2011-08-23 | Philips Electronics Ltd Philips Electronique Ltee | Orientable lens for an LED fixture |
CN201434244Y (en) * | 2009-05-21 | 2010-03-31 | 魏根 | Rotating lamp capable of adjusting irradiation angle of light rays |
DE102009050395A1 (en) * | 2009-10-22 | 2011-04-28 | Götz, Christian | LED lamp with infinitely adjustable beam angle |
CN202051344U (en) * | 2011-05-21 | 2011-11-30 | 成都市飞龙水处理技术研究所 | Simple display cabinet |
-
2011
- 2011-12-08 CN CN201110407553.5A patent/CN103162242B/en not_active Expired - Fee Related
-
2012
- 2012-07-23 EP EP12743419.9A patent/EP2788682B1/en not_active Not-in-force
- 2012-07-23 WO PCT/EP2012/064394 patent/WO2013083299A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
EP2788682B1 (en) | 2016-04-06 |
CN103162242B (en) | 2017-05-10 |
WO2013083299A1 (en) | 2013-06-13 |
CN103162242A (en) | 2013-06-19 |
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