WO2017024556A1 - Projecteur à del réglable à effet d'éclairage - Google Patents

Projecteur à del réglable à effet d'éclairage Download PDF

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Publication number
WO2017024556A1
WO2017024556A1 PCT/CN2015/086774 CN2015086774W WO2017024556A1 WO 2017024556 A1 WO2017024556 A1 WO 2017024556A1 CN 2015086774 W CN2015086774 W CN 2015086774W WO 2017024556 A1 WO2017024556 A1 WO 2017024556A1
Authority
WO
WIPO (PCT)
Prior art keywords
led
light source
color temperature
curved surface
temperature
Prior art date
Application number
PCT/CN2015/086774
Other languages
English (en)
Chinese (zh)
Inventor
陈熙鹏
何凯
李富春
Original Assignee
北京莱斯达电子科技有限公司
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 北京莱斯达电子科技有限公司 filed Critical 北京莱斯达电子科技有限公司
Priority to PCT/CN2015/086774 priority Critical patent/WO2017024556A1/fr
Publication of WO2017024556A1 publication Critical patent/WO2017024556A1/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
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • 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

Definitions

  • the utility model relates to the technical field of lighting equipment, in particular to an LED spotlight, and more particularly to an LED spotlight with adjustable lighting effect.
  • the green, energy-saving and environmentally-friendly LED LED application technology has continuously penetrated into all aspects of society and life, bringing huge benefits to the society in energy conservation and emission reduction and creating a green life.
  • the professional fields such as studios and live broadcast rooms of TV stations, most of them still stay in the stage of using traditional 2000W tungsten lamps, which causes waste of energy and cannot achieve green and environmental protection effects.
  • the main reason is that the current LED spotlights have a large gap between the fixed distance illumination, the spot effect and the color rendering index compared with the conventional 2000W tungsten lamp.
  • the lamps are flat-panel LED lamps with surface light source and LED spotlights with simple secondary optical adjustable focal length.
  • the general LED light source adopts a monochromatic temperature light source, but the monochromatic temperature light source can only be used in a single scene, and does not have the function of an LED spotlight applied to a plurality of different color temperature and brightness requirements, and when the LED When the light source adopts a multi-color temperature light source, there is a problem that the spot effect and the light mixing effect are not good.
  • the technical problem to be solved by the utility model is to provide an LED spotlight with adjustable illumination effect, and the LED spotlight can be applied to different color temperature and brightness requirements, and the lighting effect is good.
  • the LED spotlight comprises: a support frame, an LED light source and a secondary optical part; the LED light source is a multi-color temperature light source and is disposed on the support frame; the secondary optical part is located in an outgoing light direction of the LED light source, and Provided on the support frame; the secondary optical portion includes a lens group and a focusing device for adjusting a distance between the lenses in the lens group; the lens group includes collimation sequentially disposed along a light emission direction Lens and Fresnel lens.
  • the multi-color temperature light source comprises a substrate, and the substrate is provided with LED lights of at least two color temperatures, and the LED lamps of different color temperatures are turned on and off, and the current flowing in the LED lamps is changed, thereby changing the The color temperature of the multicolor temperature source.
  • each of the LED lamps of each color temperature is respectively provided, and the LED lamps of various color temperatures are respectively arranged at intervals.
  • the color temperature range of the multi-color temperature light source is 2700K-6500K.
  • the multi-color temperature light source is provided with a heat sink, and the heat sink is a heat column heat sink and/or a phase change technology heat sink, and the heat sink and the multi-color temperature light source are bonded by a thermal grease.
  • a cooling air duct for cooling the heat sink is further disposed; the cooling air duct is disposed on the support frame, one end of the cooling air duct is connected to the heat sink, and the other end is connected to the outside of the LED spotlight. And a fan is arranged in the cooling air duct.
  • the cooling air duct is a telescopic sleeve
  • the telescopic sleeve includes a temperature isolation cylinder and a skeleton
  • the skeleton is used for supporting the temperature isolation cylinder
  • the temperature isolation cylinder is a soft material
  • the partition is The temperature cylinder can be elongated or shortened along its axial direction, one end of the temperature isolation cylinder is connected to the outside of the LED spotlight, and the other end is connected to the heat sink, and the fan is disposed in the temperature isolation cylinder and close to the heat sink.
  • the collimating lens includes a first curved surface, a second curved surface and a third curved surface which are coaxially disposed, the second curved surface is used for reflecting light, and the second curved surface is a paraboloid and a concentrating position is opened at the apex position thereof.
  • the third curved surface is used for light mixing, the third curved surface is disposed in the concentrating cavity and is located at a focus of the second curved surface, the first curved surface is used for collecting light, and the first curved surface is disposed at On the opening of the second curved surface.
  • control part includes a controller and a temperature transfer a sensor, a driving circuit, and a human-machine interaction device, wherein the human-machine interaction device sends an instruction to the controller, the controller sends a driving signal to the driving circuit, and the driving circuit drives the multi-color temperature light source,
  • the temperature sensor collects temperature information of the multi-color temperature light source and transmits it to the controller.
  • the foregoing focusing device is further provided with a motor, and the controller controls the motor to realize automatic focusing of the multi-color temperature light source.
  • the LED spotlight provided by the utility model adjusts the color temperature and brightness of the multi-color temperature light source, and adjusts the distance between the lenses by the focusing device to realize the illuminance and spot effect of the fixed distance from the lamp body to meet different scene illuminations.
  • the LED spotlight can be used in large-scale applications in TV studios, outdoor interviews and product promotion photo shooting venues.
  • the lens group comprises a collimating lens and a Fresnel lens, and the collimating lens is also a TIR lens, and the light is mixed by complicated optical processing, and then with Fresnel
  • the dimming can realize the dimming of the multi-color temperature light source lamp, which can greatly reduce the uneven distribution of the spot and the obvious boundary between different color temperatures during imaging.
  • the LED spotlight with adjustable illumination effect provided by the utility model optimizes the heat conduction and heat dissipation design, improves the heat dissipation effect, and makes the lamp itself more than 80% energy-saving, and indirectly reduces the energy consumption thereof by reducing the heat generation of the product, and brings good At the same time, economic benefits bring about a social demonstration of green and environmental protection.
  • Figure 1 is a front view of the LED spotlight with adjustable illumination effect of the present invention
  • FIG. 2 is a cross-sectional view along the line A-A of the LED spotlight with adjustable illumination effect of FIG. 1.
  • installation should be understood broadly, unless otherwise explicitly defined and limited.
  • it may be a fixed connection or Removable connection, or integral connection; can be mechanical connection or electrical connection; can be directly connected or indirectly connected through an intermediate medium.
  • connection should be understood broadly, unless otherwise explicitly defined and limited.
  • it may be a fixed connection or Removable connection, or integral connection; can be mechanical connection or electrical connection; can be directly connected or indirectly connected through an intermediate medium.
  • specific meanings of the above terms in the present invention can be understood as the case may be.
  • an embodiment of the present invention provides an LED spotlight with adjustable illumination effects, including: a support frame 13, an LED light source 8, and a secondary optical portion;
  • the support frame 13 is provided with a housing 2 disposed at the rear end of the LED spotlight with adjustable illumination effect, a lamp body support assembly 5 for hanging the LED spotlight with adjustable illumination effect, and a lamp holder mounted on the front end of the LED spotlight with adjustable illumination effect.
  • Component 12 Component 12.
  • the LED light source 8 is a multi-color temperature light source, and the multi-color temperature light source is disposed on the support frame 13; the secondary optical portion is disposed on the support frame 13 and located at the LED light source 8 The light-emitting direction is disposed on the support frame 13; the secondary optical portion includes a lens group and a focusing device 4 for adjusting a distance between the lenses in the lens group.
  • the LED spotlight adjusts the distance between the lenses through the focusing device 4 to adjust the focal length of the spotlight, and realizes the illuminance and spot effect of the fixed distance from the lamp body to meet the lighting requirements of different scenes.
  • the lens group of the present embodiment includes a collimator lens 9 and a Fresnel lens 10 which are sequentially disposed along the light emission direction, and the multicolor temperature light source is first mixed by the collimator lens 9, and then passed through.
  • the Fresnel lens 10 condenses light to improve the illumination effect.
  • the collimating lens 9 includes a first curved surface, a second curved surface and a third curved surface which are coaxially disposed.
  • the second curved surface is used for reflecting light
  • the second curved surface is a paraboloid
  • the apex position of the second curved surface is a concentrating cavity
  • the third curved surface is used for mixing.
  • the third curved surface is disposed in the concentrating cavity and is located at a focus of the second curved surface.
  • the first curved surface is used for collecting light, and the first curved surface is disposed on the opening of the second curved surface.
  • the first curved surface may be a smooth curved surface, or may be a surface uniformly distributed grid or a convex curved surface
  • the third curved surface may be a smooth curved surface or a stepped curved surface.
  • the collimating lens 9 is a flat collimating lens 9.
  • the multi-color temperature light source comprises a substrate, and the substrate is provided with at least two color temperature LED lamps, and the color temperature of the multi-color temperature light source is changed by turning on and off the LED lamps of different color temperatures and changing the current flowing in the LED lamps.
  • the color temperature range of the multi-color temperature source is 2700K-6500K.
  • two color temperature LED lamps have color temperatures of 2700K and 6500K respectively.
  • 3200K light source product promotion photo shooting site with a color temperature of 4400K and a color source for outdoor interviews with a color temperature of 5600K.
  • multiple LED spotlights can be used together, for example, one LED is concentrated on the front side, and one LED is placed on both sides for use.
  • the substrate can be made of aluminum, copper or ceramic.
  • An aluminum substrate, a copper substrate or a ceramic substrate having a thermal conductivity of 100 W/m ⁇ K or more is used to improve the heat dissipation effect of the high-power LED light source 8. Further, increase the substrate area to 450 square millimeters or more at the same time, and increase the LED The heat dissipation effect of the light source 8 in the longitudinal direction and the lateral direction.
  • the multi-color temperature light source is provided with a heat sink 7, which is a heat column heat sink 7 and/or a phase change technology heat sink 7, and the heat sink 7 and the multi-color temperature light source are bonded by a thermal grease.
  • the thermal conductivity of the thermal grease is greater than or equal to 4 W/m ⁇ K.
  • the LED spotlight is provided with a cooling duct 3 for cooling the radiator 7; the cooling duct 3 is disposed on the support frame 13, one end of the cooling duct 3 is connected to the radiator 7, and the other end is connected to the outside of the LED spotlight.
  • the cooling duct 3 is provided with an intake rear end cover 1 at the rear end of the spotlight, through which the intake rear end cover 1 communicates with the cold air outside the LED spotlight, and the cooling duct 3 is provided with a fan 6.
  • the fan 6 can be equipped with a fan with a mute function.
  • the cooling air duct 3 is a telescopic sleeve
  • the telescopic sleeve comprises a temperature isolation cylinder and a skeleton
  • the skeleton is used for supporting the temperature isolation cylinder
  • the temperature isolation cylinder is a soft material
  • the temperature separation cylinder can be along the same
  • the axial extension or shortening, one end of the temperature separation cylinder is connected to the outside of the LED spotlight, and the other end is connected to the heat sink 7, and the fan 6 is disposed in the temperature isolation cylinder and close to the heat sink 7.
  • the fan 6 may be an intake fan, so that the cooling air duct 3 can continuously blow the cold air source outside the LED spotlight to the radiator 7, and the temperature separating cylinder cools the air and the lamp in the cooling duct 3.
  • the hot air in the body is separated, so that the hot air in the lamp body is prevented from being circulated to the radiator 7 by the fan 6, and the hot air which partially removes the heat from the radiator 7 is continuously circulated inside the lamp body, achieving good Cooling effect.
  • the fan 6 can also be an exhaust fan, and the hot air on the radiator 7 is pumped to the outside of the LED spotlight through the temperature isolator, and the hot air is prevented from bringing heat to the lamp body, and the hot air is prevented from circulating in the lamp body, thereby causing heat dissipation. Reduced efficiency.
  • the temperature isolation cylinder may further include a corrugated expansion joint, a sleeve expansion joint or a square natural compensation expansion joint for compensating the expansion and contraction deformation of the absorption pipe in the axial, lateral, and angular directions.
  • control part 11 further includes a controller, a temperature sensor, a driving circuit, and a human-machine interaction device.
  • the human-machine interaction device sends an instruction to the controller, and the controller sends a driving signal to the driving circuit, and the driving circuit
  • Driving the multi-color temperature light source the temperature sensor collects the temperature information of the multi-color temperature light source, and transmits it to the controller, and the controller compares with the stored maximum temperature value. If the temperature information is greater than the highest temperature value, the controller controls The drive circuit stops the multi-color temperature light source.
  • the human-machine interaction device in this embodiment may be a combination of an LCD display, a keyboard, and an adjustment knob, and the color temperature of the multi-color temperature light source is controlled by the keyboard, and the brightness of the light is adjusted by the knob;
  • the display realizes the change of the color temperature and the adjustment of the brightness of the light through the touch screen.
  • the temperature sensor is a thermocouple.
  • the controller in this embodiment is a single chip microcomputer.
  • the control part 11 further includes a power source.
  • the power supply in this embodiment includes a 220V AC power supply and a 12V battery. It is suitable for directly inserting a 220V AC power connector indoors, or it can be used to maintain the battery when it is outdoors.
  • the control section 11 may also include a communication module, such as Bluetooth, that can receive remote control.
  • a communication module such as Bluetooth
  • a motor 14 is also provided on the focusing device 4, and the controller controls the motor 14 to achieve automatic focusing of the multi-color temperature source.
  • the motor 14 may be a driving motor or a stepping motor.
  • the stepper motor can memorize the range of the previous focus adjustment through the controller, which is convenient for focusing after the same occasion.
  • a limit device can be added to the lamp body to limit the range of focus adjustment.
  • the control part 1111 further includes a DMX controller, such as a DMX512 lighting control card; the control portion 1111 is used to adjust the brightness of the LED light source 88 and the on and off of the power source, so that the product satisfies the needs of the professional field in the studio and the live broadcast room.
  • a DMX controller such as a DMX512 lighting control card
  • the embodiment is configured by arranging a collimating lens 9 that can be mixed with light, a secondary optical portion of the adjustable focal length, an LED light source 8 combination and arrangement, a heat conduction heat dissipation design, a cooling air duct 3, and the like.
  • the focal length LED spotlight realizes the function of adjustable color temperature from 2700K to 6500K white light range, so as to meet the lighting requirements of shooting different color temperature through a kind of luminaire, especially the 3200K (corresponding to traditional tungsten lamp) and 5600K (common for professional photography).
  • 3200K corresponding to traditional tungsten lamp
  • 5600K common for professional photography
  • Corresponding to traditional metal halide lamps two kinds of white light, and through the new advantages of green energy-saving, UV-free LED lighting, etc., so that news interviews, professional photography and other industries began to enter the real LED lighting era .

Abstract

La présente invention concerne un projecteur à DEL réglable à effet d'éclairage, comprenant : un cadre de support (13), une source (8) de lumière à DEL, et une partie optique secondaire ; ladite source (8) de lumière à DEL étant une source de lumière de températures de multi-couleurs et étant disposée sur ledit cadre de support (13) ; ladite partie optique secondaire étant positionnée dans la direction d'électroluminescence de la source (8) de lumière à DEL et étant disposée sur ledit cadre de support (13) ; ladite partie optique secondaire comprenant un groupe de lentilles et un dispositif de focalisation (4) destiné à ajuster la distance entre les lentilles dans le groupe de lentilles ; et le groupe de lentilles comprenant une lentille collimatrice (9) et une lentille de Fresnel (10) disposées successivement le long de la direction d'électroluminescence. Le projecteur à DEL peut être appliqué à des occasions d'exigences de températures de couleurs et de luminosités différentes, et présente des effets d'éclairage préférables.
PCT/CN2015/086774 2015-08-12 2015-08-12 Projecteur à del réglable à effet d'éclairage WO2017024556A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/CN2015/086774 WO2017024556A1 (fr) 2015-08-12 2015-08-12 Projecteur à del réglable à effet d'éclairage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/086774 WO2017024556A1 (fr) 2015-08-12 2015-08-12 Projecteur à del réglable à effet d'éclairage

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WO2017024556A1 true WO2017024556A1 (fr) 2017-02-16

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PCT/CN2015/086774 WO2017024556A1 (fr) 2015-08-12 2015-08-12 Projecteur à del réglable à effet d'éclairage

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109424881A (zh) * 2017-08-22 2019-03-05 朱帮选 Led多功能投光灯机
CN113028321A (zh) * 2021-03-19 2021-06-25 广州市台电舞台灯光设备有限公司 一种舞台灯设备

Citations (8)

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Publication number Priority date Publication date Assignee Title
US20070189013A1 (en) * 2006-02-10 2007-08-16 Ford Timothy D F Light emitting and receiving device
JP2012119250A (ja) * 2010-12-03 2012-06-21 Tatsumi Chuo Keiei Kenkyusho:Kk 楕円照射投光器
CN103249206A (zh) * 2012-02-09 2013-08-14 上海技磐光电科技有限公司 一种led灯具
CN103925553A (zh) * 2014-03-26 2014-07-16 北京莱斯达电子科技有限公司 一种led聚光灯
CN203823652U (zh) * 2014-03-26 2014-09-10 北京莱斯达电子科技有限公司 一种led聚光灯
CN204114838U (zh) * 2014-04-29 2015-01-21 阳东点亮生活科技有限公司 一种光束角可调的二次光学透镜模组
CN105114878A (zh) * 2015-08-12 2015-12-02 北京莱斯达电子科技有限公司 一种照明效果可调的led聚光灯
CN204901557U (zh) * 2015-08-12 2015-12-23 北京莱斯达电子科技有限公司 一种照明效果可调的led聚光灯

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070189013A1 (en) * 2006-02-10 2007-08-16 Ford Timothy D F Light emitting and receiving device
JP2012119250A (ja) * 2010-12-03 2012-06-21 Tatsumi Chuo Keiei Kenkyusho:Kk 楕円照射投光器
CN103249206A (zh) * 2012-02-09 2013-08-14 上海技磐光电科技有限公司 一种led灯具
CN103925553A (zh) * 2014-03-26 2014-07-16 北京莱斯达电子科技有限公司 一种led聚光灯
CN203823652U (zh) * 2014-03-26 2014-09-10 北京莱斯达电子科技有限公司 一种led聚光灯
CN204114838U (zh) * 2014-04-29 2015-01-21 阳东点亮生活科技有限公司 一种光束角可调的二次光学透镜模组
CN105114878A (zh) * 2015-08-12 2015-12-02 北京莱斯达电子科技有限公司 一种照明效果可调的led聚光灯
CN204901557U (zh) * 2015-08-12 2015-12-23 北京莱斯达电子科技有限公司 一种照明效果可调的led聚光灯

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109424881A (zh) * 2017-08-22 2019-03-05 朱帮选 Led多功能投光灯机
CN113028321A (zh) * 2021-03-19 2021-06-25 广州市台电舞台灯光设备有限公司 一种舞台灯设备

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