CN104315462A - Projection type lighting system based on high-power density light emitting array - Google Patents

Projection type lighting system based on high-power density light emitting array Download PDF

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Publication number
CN104315462A
CN104315462A CN201410573393.5A CN201410573393A CN104315462A CN 104315462 A CN104315462 A CN 104315462A CN 201410573393 A CN201410573393 A CN 201410573393A CN 104315462 A CN104315462 A CN 104315462A
Authority
CN
China
Prior art keywords
light
power density
projection
light emitting
emitting array
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
Application number
CN201410573393.5A
Other languages
Chinese (zh)
Inventor
刘立莉
卢鹏志
郑怀文
谢海忠
于飞
杨华
李璟
伊晓燕
王军喜
李晋闽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Institute of Semiconductors of CAS
Original Assignee
Institute of Semiconductors of CAS
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 Institute of Semiconductors of CAS filed Critical Institute of Semiconductors of CAS
Priority to CN201410573393.5A priority Critical patent/CN104315462A/en
Publication of CN104315462A publication Critical patent/CN104315462A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F21V5/046—Refractors for light sources of lens shape the lens having a rotationally symmetrical shape about an axis for transmitting light in a direction mainly perpendicular to this axis, e.g. ring or annular lens with light source disposed inside the ring
    • 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
    • F21Y2101/00—Point-like light sources

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Projection Apparatus (AREA)
  • Led Device Packages (AREA)

Abstract

The invention discloses a projection type lighting system based on a high-power density light emitting array. The system comprises the high-power density light emitting array, a radiating element, a light collecting and evening element, and a projection element. The high-power density light emitting array comprises a plurality LED chips arrayed on a circuit substrate. The radiating element is disposed below or near the circuit substrate and used for radiating. The light collecting and evening element is disposed in front of the light path of the high-power density light emitting array and used for collecting light beams and forming even light beams. The projection element is disposed in front of the light collecting and evening element and used for further adjusting the light beams. The projection type lighting system has the advantages that the high-power density light emitting array is used as the light source, so that the strong light source is provided and secondary optical design is facilitated; by the light collecting element with the light evening function, system structure is simplified, and system miniaturization is achieved.

Description

Based on the projection illuminator of high power density light emitting array
Technical field
The invention belongs to semiconductor light-emitting-diode illumination application, relate to a kind of projection illuminator based on high power density light emitting array.
Background technology
Light-Emitting Diode integration packaging has the feature such as low thermal resistance, specular removal.But the luminous power of existing integrated optical source still cannot reach the demand of many application systems.
Existing Light-Emitting Diode light source is area source, need in a particular application to collect light beam by package lens and secondary optics, but the optical system of complexity can cause a large amount of optical loss, reduces the light utilization efficiency of system, in addition, existing light collecting element such as light harvesting rod occupies system very large space.
Summary of the invention
In view of this, the present invention proposes a kind of projection illuminator, it as light source, is also more conducive to secondary optical design while providing light intensity light source with high power density light emitting array.In addition, the invention provides the light collecting element with even light action, simplied system structure and then realize system compact.
Projection illuminator based on high power density light emitting array provided by the invention, comprising:
High power density light emitting array, it is formed by multiple being produced on circuit base plate of LED luminescence chip array;
Heat dissipation element, its to be placed on below described circuit base plate or near, in order to heat radiation;
The even optical element of light harvesting, it is placed on the light path front of described high power density light emitting array, in order to ray-collecting is formed uniform light;
Projection element, it is placed on light harvesting even optical element light path front, for further light regulating.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of projection illuminator in the embodiment of the present invention;
Fig. 2 is the light path principle figure of projection illuminator in the embodiment of the present invention.
[main element]
Projection illuminator 100
High power density luminous array module 120
High power density luminescence chip 121
Circuit base plate 122
Encapsulated layer 123
Heat dissipation element 130
The even optical element 140 of light harvesting
Projection element 150
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in further detail.
Refer to example structure schematic diagram in Fig. 1, the projection illuminator 100 based on high power density light emitting array 120 provided by the invention, comprising:
High power density light emitting array 120: its preparation method is furnished with on the substrate 122 of circuit being fixed on of LED luminescence chip 121 array of multiple high optical power density, then use encapsulating material 123 by luminescence chip array package on a substrate 122.The combination of luminescence chip used can be the chip of monochromatic high optical power density also can be multi-color high-light power density chip.If use monochromatic high power density chip, in encapsulation process, so need the step increasing multicolor phosphor coating.
Heat dissipation element 130: by heat-pipe radiator, air-cooled radiator, hot condensation radiator, or more several radiating mode hybrid heat sink form.This element 130 to be placed on below substrate 122 or near, in order to distribute the heat energy of light emitting array 120 and system 100.
The even optical element of light harvesting 140: be the light collecting element with even smooth function, this element 140 is placed on luminescence chip 120 light path front, in order to form uniform light by ray-collecting.The even optical element of light harvesting in the present embodiment 140 makes it to have even light effect in the processing of condenser surface coarsening, and the structure of condenser is not limited only to shown in figure herein.
Projection element 150: be made up of single group or multiple lens, this element is placed on the light path front of the even optical element 140 of light harvesting, for being regulated further by light.
Optical principle of the present invention is explained with reference to the light path principle figure of embodiment in Fig. 2.The light that high optical power density light emitting array 120 sends has the advantages that density is high, light beam is concentrated.But central area and edge-light power density differ greatly.Light, via the even optical element 140 of the light harvesting being placed on light path front, is processed into uniform and that lighting angle is less light beam.The projection element 150 that this low-angle light beam can be placed on front is all collected and can regulate its illumination range further according to the demand of embody rule environment and people.
The present invention improves light source and optical element on projection illuminator basis.With high power density light emitting array as light source, while light intensity light source is provided, be also more conducive to secondary optical design.In addition, the invention provides the light collecting element with even light action, simplied system structure and then realize system compact.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (8)

1., based on a projection illuminator for high power density light emitting array, comprising:
High power density light emitting array, it is formed by multiple being produced on circuit base plate of LED luminescence chip array;
Heat dissipation element, its to be placed on below described circuit base plate or near, in order to heat radiation;
The even optical element of light harvesting, it is placed on the light path front of described high power density light emitting array, in order to ray-collecting is formed uniform light;
Projection element, it is placed on light harvesting even optical element light path front, for further light regulating.
2. projection illuminator as claimed in claim 1, wherein, the multiple LED chip on described high power density light emitting array are monochromatic high optical power density chip, or the combination of multi-color high-light power density chip.
3. projection illuminator as claimed in claim 1 or 2, wherein, described multiple LED chip is encapsulated on described circuit base plate by encapsulating material, and when described multiple LED chip is monochromatic high optical power density chip, described encapsulating material is coated with multicolor phosphor.
4. projection illuminator as claimed in claim 1, wherein, described heat dissipation element by heat-pipe radiator, air-cooled radiator, hot condensation radiator, or more the hybrid heat sink of several radiating mode form.
5. projection illuminator as claimed in claim 1, wherein, the even optical element of described light harvesting is formed by condenser.
6. projection illuminator as claimed in claim 5, wherein, alligatoring processing has been carried out on described condenser surface.
7. projection illuminator as claimed in claim 1, wherein, described projection element is made up of single group or multiple lens.
8. the projection illuminator as described in any one of claim 1 to 7, wherein, described projection element is used for the illumination range of light regulating.
CN201410573393.5A 2014-10-23 2014-10-23 Projection type lighting system based on high-power density light emitting array Pending CN104315462A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410573393.5A CN104315462A (en) 2014-10-23 2014-10-23 Projection type lighting system based on high-power density light emitting array

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410573393.5A CN104315462A (en) 2014-10-23 2014-10-23 Projection type lighting system based on high-power density light emitting array

Publications (1)

Publication Number Publication Date
CN104315462A true CN104315462A (en) 2015-01-28

Family

ID=52370735

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410573393.5A Pending CN104315462A (en) 2014-10-23 2014-10-23 Projection type lighting system based on high-power density light emitting array

Country Status (1)

Country Link
CN (1) CN104315462A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020507110A (en) * 2017-01-17 2020-03-05 シグニファイ ホールディング ビー ヴィＳｉｇｎｉｆｙ Ｈｏｌｄｉｎｇ Ｂ．Ｖ． Adjustable spotlight position generation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201502903U (en) * 2009-09-29 2010-06-09 深圳市庄正电子技术有限公司 LED light source structure used for projection equipment
CN102878456A (en) * 2012-09-07 2013-01-16 浙江中博光电科技有限公司 High-power LED (light-emitting diode) lamp module of chip-on-board
CN102954378A (en) * 2012-11-05 2013-03-06 中国科学院半导体研究所 High optical power density light-emitting diode (LED) light source module
CN203023849U (en) * 2012-11-21 2013-06-26 惠州雷曼光电科技有限公司 Light-emitting diode (LED) light source, LED display module and LED lighting device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201502903U (en) * 2009-09-29 2010-06-09 深圳市庄正电子技术有限公司 LED light source structure used for projection equipment
CN102878456A (en) * 2012-09-07 2013-01-16 浙江中博光电科技有限公司 High-power LED (light-emitting diode) lamp module of chip-on-board
CN102954378A (en) * 2012-11-05 2013-03-06 中国科学院半导体研究所 High optical power density light-emitting diode (LED) light source module
CN203023849U (en) * 2012-11-21 2013-06-26 惠州雷曼光电科技有限公司 Light-emitting diode (LED) light source, LED display module and LED lighting device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020507110A (en) * 2017-01-17 2020-03-05 シグニファイ ホールディング ビー ヴィＳｉｇｎｉｆｙ Ｈｏｌｄｉｎｇ Ｂ．Ｖ． Adjustable spotlight position generation
JP7002552B2 (en) 2017-01-17 2022-02-04 シグニファイ ホールディング ビー ヴィ Adjustable spotlight position generation

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Application publication date: 20150128