CN103047565A - Light distribution form changeable light-emitting diode (LED) light source - Google Patents
Light distribution form changeable light-emitting diode (LED) light source Download PDFInfo
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- CN103047565A CN103047565A CN2012105345076A CN201210534507A CN103047565A CN 103047565 A CN103047565 A CN 103047565A CN 2012105345076 A CN2012105345076 A CN 2012105345076A CN 201210534507 A CN201210534507 A CN 201210534507A CN 103047565 A CN103047565 A CN 103047565A
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Abstract
The invention relates to a light distribution form changeable light-emitting diode (LED) light source. Different environments have different requirements on illumination, and fixed light distribution schemes limit application ranges of LED light sources. The light distribution form changeable LED light source is provided with an installation base plate, an LED chip is installed on the top surface of the installation base plate, a bracket is arranged at the edge of the installation base plate, a glass plain film with two polished surfaces is arranged above the bracket, space formed by the glass plain film, the bracket and the installation base plate is full of pouring sealant with dispersed fluorescent powders, and an upper surface of the glass plain film is connected with a lens through an optical cement process. According to the light distribution form changeable LED light source, the glass plain film is used as a platform, the optical cement process is used for installing the lens, the operation is simple and convenient, the structure is simple, and installing and changing are convenient; and different lenses are installed to achieve different light distribution schemes, multiple functions of the light source are achieved, and secondary light distribution is omitted.
Description
Technical field
The invention belongs to the light illumination technical field, be specifically related to a kind of led light source that changes the luminous intensity distribution form.
Background technology
LED has the plurality of advantages such as light efficiency is high, operating voltage is low, volume is little, firm in structure, the life-span is long as a kind of semiconductor solid-state luminescent device, is the new type ideal light source of the conventional light source such as replace incandescent and fluorescent lamp.The lighting angle of conventional light source mostly is 360 degree, change the luminous intensity distribution form, only has the lampshade that uses difformity, different size, realizes luminous intensity distribution by reflection.
LED can realize luminous intensity distribution by use the mode of lens at the light source place, and existing LED all adopts fixing light distribution scheme.But different environment has different requirements to illumination, even place needs the light fixture of wide luminous intensity distribution, narrow luminous intensity distribution and special light simultaneously, fixing light distribution scheme is restricted the range of application of led light source, need to use lampshade to carry out secondary light-distribution toward contact, or change luminous intensity distribution with multi-chip modules, to adapt to different user demands.So both increase the volume of LED light fixture, improved again production cost.
Summary of the invention
The purpose of this invention is to provide a kind of led light source that can overcome the changed luminous intensity distribution form of this defective of the fixing light distribution scheme restriction led light source scope of application.
The technical solution adopted in the present invention is:
Can change the led light source of luminous intensity distribution form, be provided with installation base plate, on the installation base plate end face led chip is installed, it is characterized in that:
Described installation base plate edge is provided with support, and the support top is provided with glass planar sheets, is full of casting glue in the space that glass planar sheets, support and installation base plate form;
The upper surface of described glass planar sheets is connected with lens by optical cement technique.
Described glass planar sheets is the polishing both surfaces type.
Be dispersed with fluorescent material in the described casting glue.
The present invention has the following advantages:
The present invention adopts optical cement process Installation lens take glass planar sheets as platform, and is easy and simple to handle simple in structure, and convenience is installed and changed the outfit.By different lens are installed, realized " a lamp multipotency ", omitted necessity of secondary light-distribution.Base unit uses unified version, and a cover production line can be produced the led light source of multiple luminous intensity distribution form, can the decrease cost, save social resources.The present invention had both reduced the production cost of led light source, again greatly improve the flexibility that led light source uses, can be widely used in various LED illuminators, adapt to the different luminous intensity distribution demand of all kinds of environment, simple in structure, be easy to mass production, have very high application and popularization value.
Description of drawings
Fig. 1 is the cross-sectional view of wide light-distribution LED form of light source;
Fig. 2 is the cross-sectional view of narrow light-distribution LED form of light source;
Fig. 3 is the cross-sectional view of special light led light source form;
Among the figure, 1-lens, 2-glass planar sheets, 3-casting glue, 4-LED chip, 5-optical cement face, 6-support, 7-installation base plate.
The specific embodiment
The present invention will be described in detail below in conjunction with the specific embodiment.
The led light source of changed luminous intensity distribution form involved in the present invention, be provided with installation base plate 7, on installation base plate 7 end faces led chip 4 is installed, installation base plate 7 edges are provided with support 6, support 6 tops are provided with glass planar sheets 2, are full of casting glue 3 in the space that glass planar sheets 2, support 6 and installation base plate 7 form; Glass planar sheets 2 upper surfaces are connected with removable light-distribution lens 1 by optical cement technique.Glass planar sheets 2 is the polishing both surfaces type.Be dispersed with fluorescent material in the casting glue 3.Lens 1 are conventional optical glass with the material of glass planar sheets 2.
Light transmission part structural order from inside to outside is: casting glue 3, glass planar sheets 2, lens 1, glass planar sheets 2 is combined as a whole with ray structure, as the base unit of light source, changes the form of once light-distribution by changing multi-form lens.The planar base surface of lens 1 contacts with the end face of the glass planar sheets of polishing both surfaces 2, and glass planar sheets 2 end faces are optical cement face 5, and both equal cleaning surfaces are smooth and face shape is consistent, engages with optical cement technique.Optical cement is to utilize the gravitation of molecule to realize technology bonding between eyeglass and the eyeglass.Two optical elements that cleaning surfaces is smooth and face shape is consistent can not use any adhesive, a little pressure make two optical elements adsorption together, be technique commonly used in the optical element processing.
The glass planar sheets of polishing both surfaces, its bottom surface fits tightly with the embedding glue-line tight that contains fluorescent material, and the light that led chip sends passes casting glue and enters glass planar sheets and inject lens again, there is not the space therebetween, the conduction that this is conducive to heat energy has reduced optical energy loss, improves light efficiency.
In the version of the present invention, used the optical cement technology.Optical cement is to utilize the gravitation of molecule to realize technology bonding between eyeglass and the eyeglass.Two optical elements that cleaning surfaces is smooth and face shape is consistent can not use any adhesive, a little pressure make two optical elements adsorption together, be technique commonly used in the optical element processing.When carrying out optical cement technique, check first the optical cement face 5 of lens 1 and glass planar sheets 2, should there be too much Mao Dao, water mark, the defect such as mouldy, then with the optical cement face 5 of optical cement cloth wiping two parts that are stained with special grease, ethanol, use again dried cloth wiping, to wipe good lens 1 and glass planar sheets 2 usefulness brushes lightly or blows up a balloon dust is removed again, then optical cement face 5 is aligned, fit gently, interference fringe is arranged clearly and during without foul when seeing, one press gently, lens 1 with regard to optical cement on glass planar sheets 2.When finding that foul or white point are arranged, optical cement again then.For making optical cement more firm, and prevent that moisture from infiltrating, be coated with protection glue etc. at the optical cement seam crossing.Take the optical cement face 5 of lens 1 and glass planar sheets 2 apart such as need, available wooden mallet knock and heat after take off lens 1, make its lower wall.
The present invention can have various ways.Comprise glass planar sheets 2, casting glue 3, led chip 4, installation base plate 7 and support 6 with the unified base unit of a large amount of manufacturing structures of a mold in the production, produce again several multi-form lens, realize different light distribution schemes by install different lens additional at base unit.Lens use optical cement to connect, and technique is simple, and producer can according to market and client's actual demand, arrange production flexibly.Because the lower wall method of optical cement is simple, whenever necessary, can take off mounted lens, the other forms of lens that change the outfit change the luminous intensity distribution form.
With reference to cross-sectional view shown in Figure 1, be a kind of led light source form of wide luminous intensity distribution.
With reference to cross-sectional view shown in Figure 2, be a kind of led light source form of narrow luminous intensity distribution.
With reference to cross-sectional view shown in Figure 3, be a kind of led light source form of special light.The diagram lens are the smooth surface body structure that two place's projections are arranged.Can elongate irradiating angle, realize non-centrosymmetrical bat-wing light distribution, vertical irradiation is to the approximate oblong of the light shape on the projection surface, and irradiated area is larger.
It is cited that content of the present invention is not limited to embodiment, and the conversion of any equivalence that those of ordinary skills take technical solution of the present invention by reading specification of the present invention is claim of the present invention and contains.
Claims (3)
1. can change the led light source of luminous intensity distribution form, be provided with installation base plate (7), on installation base plate (7) end face led chip (4) is installed, it is characterized in that:
Described installation base plate (7) edge is provided with support (6), and support (6) top is provided with glass planar sheets (2), is full of casting glue (3) in the space that glass planar sheets (2), support (6) and installation base plate (7) form;
The upper surface of described glass planar sheets (2) is connected with lens (1) by optical cement technique.
2. the led light source that changes the luminous intensity distribution form according to claim 1 is characterized in that:
Described glass planar sheets (2) is the polishing both surfaces type.
3. the led light source that changes the luminous intensity distribution form according to claim 1 and 2 is characterized in that:
Described casting glue is dispersed with fluorescent material in (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105345076A CN103047565A (en) | 2012-12-12 | 2012-12-12 | Light distribution form changeable light-emitting diode (LED) light source |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105345076A CN103047565A (en) | 2012-12-12 | 2012-12-12 | Light distribution form changeable light-emitting diode (LED) light source |
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| CN103047565A true CN103047565A (en) | 2013-04-17 |
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| CN2012105345076A Pending CN103047565A (en) | 2012-12-12 | 2012-12-12 | Light distribution form changeable light-emitting diode (LED) light source |
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Application publication date: 20130417 |