CN104696885B - A kind of novel secondary light-distribution lens and equipment for discrete LED sources - Google Patents
A kind of novel secondary light-distribution lens and equipment for discrete LED sources Download PDFInfo
- Publication number
- CN104696885B CN104696885B CN201510134692.3A CN201510134692A CN104696885B CN 104696885 B CN104696885 B CN 104696885B CN 201510134692 A CN201510134692 A CN 201510134692A CN 104696885 B CN104696885 B CN 104696885B
- Authority
- CN
- China
- Prior art keywords
- face
- sub
- lens
- incident end
- light source
- 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.)
- Active
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
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
-
- 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
Abstract
The present invention relates to LED light source lighting field, more particularly to a kind of novel secondary light-distribution lens and equipment for discrete LED sources.The lens entrance face includes incident side and incident end face；The incident end face is composite surface, including main incident end face and sub- incident end face, the sub- incident end face are arranged on main incident end face；The sub- incident end face and main incident end face are curved surface, and sub- incident end face is raised to lens bottom direction, and the lens are applied to discrete LED sources, and its neutron incident end face is the same as the corresponding use of each sub-light source in light source；The sub- incident end face sends the sub-light source of present off-axis state the off-axis ray relative to lens axis, is transformed into the axle glazing of the sub- incident end face or paraxial light, can so effectively improve the light intensity of low-angle light；Dense distribution plays the secondary small raised lens array of even light action on incident end face, illumination light field of the discrete light source after lens are modulated is reached preferable effect.
Description
Technical field
The present invention relates to LED light source lighting field, more particularly to a kind of novel secondary luminous intensity distribution for discrete LED sources are saturating
Mirror and equipment.
Background technology
As a kind of energy-saving illumination technology, LED illumination enters the life of people in all directions.In actual production and make
In, the cost performance of LED lamp turns into the contradiction to become increasingly conspicuous.Under equal-wattage, the price of integration packaging COB light source is more
The several times of individual packages light source, such as the very widely used today light source encapsulated using 3030EMC supports.Also in identical work(
COB integrated packaging power sources under rate, the big light source light extraction efficiency of chip array spacing are more than closely spaced light source of arranging.Therefore it is existing
Attempt to reduce cost of light source away from big COB light source using more individual packages light sources or chip chamber in many light fixture manufacturers.This
The general character of two ways is exactly discrete illuminating source, if being equipped with conventional light-distribution lens, can be showed and light source in illumination light field
The hot spot distribution for arranging similar, produces larger hot spot defect, particularly in the case of the requirement of low-angle high-k, light source
Arrangement can clearly be distributed in illumination light field, greatly affected illuminating effect.In existing application, have using entrance aperture
The method of lenslet array is adhered in end face, although can to obtain the optical field distribution of a part of high-frequency section even for such mode
Change, but not can effectively solve the problem that low and medium frequency section hot spot is in the phenomenon of distribution of light sources, such uneven defect of light field is great
Limit the illumination using effect of discrete light source.
The content of the invention
It is an object of the invention to overcome the above-mentioned deficiency in the presence of prior art, there is provided one kind is used for discrete LED light
The novel secondary light-distribution lens and equipment in source, by sub- incident end face by off-axis sub-light source in discrete light source sent relative to
The off-axis ray of lens centre axis, it is transformed into the axle glazing of corresponding sub- incident end face or paraxial light.Effectively change photograph
Mingguang City field shows the hot spot distribution situation similar with light source arrangement, passes through to the raised main incidence of lens body bottom direction
The convergence effect of end face, is further improved the central light strength of illumination light field, improves the K values of light fixture, reached using discrete light source
Illuminating effect as integrated chip light source, significantly reduce the cost of relevant device.
In order to realize foregoing invention purpose, the invention provides following technical scheme：It is a kind of to be used for the new of discrete LED sources
Type secondary light-distribution lens, including lens body, the lens body include the plane of incidence and exit facet, and the plane of incidence includes incidence
Side and incident end face；The incident side is the side of entrance aperture in the lens body；The incident end face enters for described in
The end face of perforation；
Wherein described incident end face includes main incident end face and sub- incident end face；
The main incident end face is curved surface；
The sub- incident end face is arranged on main incident end face, and the sub- incident end face is convex to lens body bottom direction
The curved surface risen.
The set location of the sub- incident end face is corresponding with the position for the off-axis sub-light source that lens match, wherein the son
Incident end face with the projected area on the face of lens body central axis >=corresponding off-axis sub-light source with lens body
0.8 times of projected area on the vertical face of mandrel；
The summit of the sub- incident end face corresponds to forming the first subpoint in the plane of lens body central axis
The central point of sub-light source is with forming the second subpoint, first subpoint and in the plane of lens body central axis
The distance between two subpoints≤correspondence sub-light source edge to 1 times of central point ultimate range,（Sub-light source edge to center
Point ultimate range refers to：The edge of fluorescent powder coating is to the ultimate range between central point in sub-light source）.
The main incident end face of lens of the present invention is the curved surface to lens body bottom protrusion, and the imaging to all sub-light sources rises
Collect adjustment effect to one, the profile and substantially distribution to hot spot of the discrete light source through lens imaging play a basic point
With effect.
On the basis of main incident end face, this lens is provided with corresponding son for the distribution situation of off-axis sub-light source and entered
Penetrate end face, some light that off-axis sub-light source corresponding to it is sent is adjusted to and lens by heretofore described sub- incident end face
The axle glazed thread or paraxial rays of the parallel sub- incident end face axis of body central axle.
Incident end face by off-axis sub-light source corresponding to it sent relative to lens axis be in off-axis ray one
Part, is transformed into the axle glazing of corresponding sub- incident end face or paraxial light, and the optical axis of sub- incident end face and lens axis
It is parallel or have a small amount of angles, typically smaller than 10 °.The light intensity of low-angle light can be so effectively improved, so as to improve the K of light fixture
Value.Simultaneously other sub- incident end faces not corresponding with the sub-light source also all can to the image formation by rays of the sub-light source larger angle,
The picture of multiple sub-light sources can be thus formed in the different zones of outgoing light field.So illuminating light field will be by multiple sub-light source
As superposition formation, the picture of these multiple sub-light sources is overlapped mutually low frequency section in space and forms relatively uniform Illumination Distribution,
The present invention changes the situation of the presentation distribution of light sources of outgoing light field, improves light-out effect, uses the discrete LED light of low cost
Source, the LED light source identical light-out effect with generally chip COB integration packagings can also be reached, reduce Related product
Production cost.
Further, the entrance aperture is located at the bottom centre of lens body, is recessed to lens body top-direction（This hair
Using the plane of incidence direction of lens as top in bright, using the direction of light source mounting surface as lens bottom, while present invention meaning is recessed
It is with respect to for entity to fall into projection）The side of the entrance aperture is incident side, the incident side be the face of cylinder or
Circular conical surface, specific face type is depending on light-out effect and processing technology.
As a preferred embodiment, the main incident end face of the lens and, or Secondary lens array is attached with sub- incident end face
（Small raised lens array）；The Secondary lens are raised to lens body bottom direction.（The array side in small raised lens array face
Formula can be that annular array can also be ranks array）The small raised lens array of secondary can be by above-mentioned illumination light field Mid Frequency
Skewness phenomenon homogenized, generally uniform mistake just so can be presented in light field by the light of surface feeding sputtering among lens
The hot spot of degree.
Further, the main incident end face of the lens, sub- incident end face and, or incident side is atomization surface..It is secondary
Small raised lens array face sets the space uneven distribution for being capable of preferably modulated medium frequency rate, but some can be brought higher
The illumination light field luminance skewness of frequency, in order to overcome this more high-frequency space uneven distribution, so pass through by
The plane of incidence, which carries out atomization process, more mellow and full excessive hot spot is presented in light field.
Further, the spheric curvature of the sub- incident end face needs according to illumination light field luminance angle and distribution and
It is fixed.
Further, the sub-light source, can be a single LED light source（The LED light source or one single chip of single
The LED light source of encapsulation）, or by the relatively independent secondary sub- LED light source of at least two（Secondary sub-light source is single
LED light source or the LED light source of one single chip encapsulation）Formed sub-light source module.
It is corresponding with the sub-light source by off-axis sub- incident end face when sub-light source is formed for single LED light source, and
Turn into after the regulation that the light of the sub-light source institute issued section passes through the sub- incident end face parallel with the lens body central shaft
Sub- incident end face axis axle glazed thread or paraxial rays.
When sub-light source forms sub-light source module for the relatively independent secondary sub- LED light source of at least two（In some cases
It is independent LED light source that sub-light source, which is not, but be made up of the LED light source of more than 2 Relatively centralized distributions, such as three or three
Being distributed in the region of a Relatively centralized two-by-two or in threes and fours（Relatively centralized distribution herein is compared to other sons
For light source or sub-light source module）, it is in this case, corresponding with sub-light source module with a sub- incident end face（Sub-light source mould
The central point of block is the central point of the sub-light source）, the sub- incident end face is by corresponding sub-light source module institute issued section
Light regulation turns into the sub- incident end face coaxial axle glazed thread or paraxial light.
Further, the lens body also includes fully reflecting surface, and the fully reflecting surface is located at the side of lens body, entered
On the exit facet that the light for being mapped to lens profile incides lens body after the total reflection effect of the fully reflecting surface, and pass through
After crossing the refraction action of lens exit facet, the headroom of lens body is finally emitted to.
As a preferred embodiment, the fully reflecting surface includes sub- reflecting surface, the sub- reflecting surface is plane or curved surface, mutually
As described in being distributed in flakey on fully reflecting surface, they are controlled respectively to the light in different spatial angle ranges for discrete splicing
System, allows them to project illumination light field on demand, and the hot spot for forming total reflection point, which is overlapped mutually, to be complementary to one another, and formation is more managed
The hot spot thought.
Further, the exit facet of the lens is plane, axisymmetric curved surface, plane and axisymmetric curved surface combinatorial surface or not
Coaxial-symmetrical surface composition face.The exit facet can be burnishing surface, or atomization surface or small raised lens arrays front,
It so can further optimize the quality of emergent light spot.
Further, designed due to the design of lens of the present invention according to light-source structure distribution, therefore when in use
There is relatively stringent corresponding relation with light source, to prevent lens in assembling in axial rotation, therefore lens of the present invention are with fixed
Position device come prevent from installing and using during the lens with matching the relative slip between light source, it is or rotary shifted.
Further, the corresponding light source of lens described in this patent can coordinate as needed appropriate power supply module,
Radiating subassembly and other structures component collectively constitute LED lamp equipment, and the fixture has cost cheap, and optical quality is excellent
The characteristics of good.
Compared with prior art, beneficial effects of the present invention：The present invention provide it is a kind of for discrete LED sources new two
Secondary light-distribution lens and equipment, by the way that incident end face is separated into main incident end face and sub- incident end face so that for off-axis son
Light source has sub- incident end face to correspond, and is adjusted some light that corresponding sub-light source is sent by sub- incident end face
For the parallel or low-angle with lens body central shaft（Usual 10 ° of ＜）The axle glazed thread of inclined sub- incident end face axis is near
Axial ray, effectively change illumination light field and show the hot spot distribution situation similar with light source arrangement, had using discrete light source
There is the light source effect as integrated chip light source, significantly reduce the cost of light source.
The main incident end face of the present invention is to the raised curved surface of lens body bottom direction, to discrete light source through lens imaging
Hot spot profile and substantially distribution play a basic distribution and adjustment effect；It is more enough preferably to realize discrete light source institute
The light sent converges to outgoing light field center；Improve the illumination of center light field；This lens shot-light class and angled indoors
It is required that the development field of Down lamp class has broad application prospects.
Brief description of the drawings：
Fig. 1 is this diagrammatic cross-section for the novel secondary light-distribution lens of discrete LED sources.
Fig. 2 is that sub- incident end face is illustrated with corresponding sub-light source with the projected position on the face of lens body central axis
Figure.
Fig. 3 is that this is used for the novel secondary light-distribution lens of discrete LED sources and the elevational schematic view of embodiment 1.
Fig. 4 is the dimensional structure diagram of embodiment 1.
Fig. 5 is the elevational schematic view of embodiment 2.
Embodiment
With reference to test example and embodiment, the present invention is described in further detail.But this should not be understood
Following embodiment is only limitted to for the scope of the above-mentioned theme of the present invention, it is all that this is belonged to based on the technology that present invention is realized
The scope of invention.
A kind of novel secondary light-distribution lens for discrete LED sources, as shown in Figure 1, Figure 3, including lens body 10,
The lens body 10 includes entrance aperture 14, and the entrance aperture 14 is located at the bottom centre of the lens body；The entrance aperture
14 are recessed to the top-direction of lens body 10；The side of the entrance aperture 14 is incident side 14-1, the top of the entrance aperture
End face is incident end face 11；The incident end face 11 includes main incident end face 11-1 and sub- incident end face 11-2；The main incidence
End face 11-1 and sub- incident end face 11-2 is to the raised curved surface of the bottom direction of lens body 10；The sub- incident end face 11-2
It is arranged on main incident end face 11-1, the position correspondence for the off-axis sub-light source that set location matches with lens, wherein the son enters
Penetrate end face 11-1 with the projected area on the face of the central axis of lens body 10 >=corresponding off-axis sub-light source A with lens sheet
0.8 times of projected area on the face of body central axis.
As shown in Fig. 2 the summit D of the sub- incident end face 11-2 with the projection on the face of lens body central axis
Point D ' to corresponding sub-light source A central points O with the distance of the subpoint O ' on the face of lens body central axis≤corresponding sub
1 times to central point ultimate range of light source edge；The sub- incident end face 11-2 is sent off-axis sub-light source A corresponding to it
Some light is adjusted to the axle glazing or near of the corresponding sub- incident end face axis of symmetry parallel with the lens body central shaft
Axle light.
The main incident end face 11-1 of lens of the present invention is the curved surface to the bottom protrusion of lens body 10, to all sub-light source A
Imaging play one and collect adjustment effect, the profile and substantially distribution to hot spot of the discrete light source through lens imaging play one
The distributional effects on basis, more preferable light-out effect can be obtained compared to other face types.
On the basis of main incident end face 11-1, this lens is directed to phases of the off-axis sub-light source A in main incident end face 11-1
Sub- incident end face 11-2 corresponding to being set on position, the sub- incident end face 11-2 is answered to be sent out off-axis sub-light source A corresponding to it
The some light gone out is adjusted to or low-angle parallel with the central shaft of lens body 10（Usual 10 ° of ＜）Inclined sub- incident end face
The axle glazed thread or paraxial rays of the 11-2 axis of symmetry.Thus there is the center that quite a few light is irradiated to illumination light field,
Improve central light strength；Other sub- incident end face 11-2 not corresponding with sub-light source A also can be to the sub-light source part A simultaneously
The photoimaging of larger angle, multiple sub-light source A picture can be so formed in the different zones of outgoing light field.Final illumination light field
It is superimposed and is formed by multiple sub-light source pictures, the picture of these sub-light sources, is overlapped mutually and is formd in illumination space low and medium frequency section
Relatively uniform Illumination Distribution, change outgoing light field presentation distribution of light sources situation, improve light-out effect, using it is low into
This discrete LED sources, can also reach the LED light source identical light-out effect with chip COB integration packagings, reduce correlation
The production cost of product.
Further, as shown in figure 1, the side of the entrance aperture 14 is incident side 14-1, the incident side 14-1
For the face of cylinder or circular conical surface, the specific face type of the incident side is depending on light-out effect and processing technology.
As a preferred embodiment, as shown in figure 4, the main incident end face 11-1 of the lens and, or on sub- incident end face 11-2
Adhere to the raised array of Secondary lens 15 of oriented lens bottom direction（Small raised lens array face）（The small raised lens of secondary
The array way of array surface can be that annular array can also be ranks array）The small raised array of lens 15 of secondary can will be upper
The skewness phenomenon for stating illumination light field Mid Frequency is homogenized, so just can be in light by the light of surface feeding sputtering among lens
Generally uniform excessive hot spot is presented in field.
Further, the main incident end face 11-1 of the lens, sub- incident end face 11-2 and, or incident side 14-1 is mist
Change surface.Secondary small raised lens array face sets the space uneven distribution for being capable of preferably modulated medium frequency rate, but meeting
Bring the illumination optical field distribution of some upper frequencies uneven, in order to overcome this more high-frequency space uneven distribution, this
By the way that the plane of incidence is carried out into atomization process more mellow and full excessive hot spot can be presented in light field in sample.
Further, the curvature of the sub- incident end face is depending on the angle of illumination light field needs and distribution.
Further, the sub-light source A, the sub-light source, can be a single LED light source further（Single
LED light source or one single chip encapsulation LED light source）, or by the relatively independent secondary sub- LED light of at least two
Source（The LED light source or the LED light source of one single chip encapsulation that secondary sub-light source is single）Formed sub-light source module.
It is corresponding with the sub-light source by off-axis sub- incident end face when sub-light source is formed for single LED light source, and
Turn into after the regulation that the light of the sub-light source institute issued section passes through the sub- incident end face parallel with the lens body central shaft
Sub- incident end face axis axle glazed thread or paraxial rays.
When sub-light source forms sub-light source module for the relatively independent secondary sub- LED light source of at least two（In some cases
It is independent LED light source that sub-light source, which is not, but be made up of the LED light source of more than 2 Relatively centralized distributions, such as three or three
Being distributed in the region of a Relatively centralized two-by-two or in threes and fours（Relatively centralized distribution herein is compared to other sons
For light source or sub-light source module））, it is in this case, corresponding with sub-light source module with a sub- incident end face（Sub-light source mould
The central point of block is the central point for changing sub-light source）, the sub- incident end face is by corresponding sub-light source module institute issued section
Light regulation turns into the sub- incident end face coaxial axle glazed thread or paraxial light.
Further, as shown in figure 1, the lens body 10 also includes fully reflecting surface 13, the fully reflecting surface 13 is located at
The side of lens body 10, bottom are connected with the bottom surface of lens body 10, and the light for inciding lens profile passes through the total reflection
Incided after the total reflection effect in face 13 on the exit facet 12 of lens body 10, and by the refraction action of lens exit facet 12
Afterwards, finally it is emitted to the headroom of lens body.
As a preferred embodiment, as indicated at 3, the fully reflecting surface 13 includes sub- reflecting surface 16, and the sub- reflecting surface 15 is flat
Face or curved surface, mutually discrete splicing is as described in being distributed in flakey on fully reflecting surface 16, and they are in different spatial angle ranges
Light be respectively controlled, allow them to project illumination light field on demand, the hot spot that total reflection point is formed is overlapped mutually phase
Mutually supplement, forms ideal hot spot.
Further, the exit facet 12 of the lens be plane, axisymmetric curved surface, plane and axisymmetric curved surface combinatorial surface or
At least two axisymmetric curved surface combinatorial surfaces.Exit facet can be burnishing surface, or atomization surface or small raised lens array
Face, it so can further make hot spot mellow and full excessively.
Further, designed due to the design of lens of the present invention according to light-source structure distribution, therefore when in use
There is relatively stringent corresponding relation with light source, to prevent lens in assembling in axial rotation, therefore lens of the present invention are with fixed
Position device 18（As shown in Fig. 1, Fig. 3, Fig. 5）Come prevent from installing and using during the lens with match it is relatively sliding between light source
It is dynamic or rotary shifted.
Further, the corresponding light source of lens described in this patent can coordinate as needed appropriate power supply module,
Radiating subassembly and other structures component collectively constitute LED lamp equipment, and the fixture has cost cheap, and optical quality is excellent
The characteristics of good.
Embodiment 1
As shown in figure 4, the present embodiment includes 3 sub-light sources, wherein 3 sub-light sources are all the LED light sources of single（Or
The LED light source of one single chip encapsulation）, for 3 sub-light sources relative to the central shaft of lens body to be uniformly distributed off axis, this implementation is saturating
End face is the sphere for thinking lens body bottom protrusion at the top of the entrance aperture of mirror, is set on the main incident end face of end face at the top of the entrance aperture
Have with 3 sub-light sources corresponding sub- incident end face respectively, the sub- incident end face be also to the raised sphere of lens bottom direction,
During work, 3 sub-light sources are respectively aligned to the sphere centre of corresponding sub- incident end face（The sphere center position of three sub- spheres relative to
The off-axis amount of lens entrance hole side rotary shaft and respective corresponding light source center relative to lens entrance hole side rotary shaft from
Axle amount is identical）The Off-axis-light of sub-light source institute issued section is adjusted to pair parallel with lens body central shaft by corresponding subsurface
The axle glazing either paraxial light of sub- incident end face symmetry axis is answered, so every sub-light source all can be in its corresponding sub- incident end face
Main spot on effect one axle of lower imaging, while two secondary hot spots can be imaged in the presence of other two incident end faces.Therefore
Final illumination light field can have three main spots being almost completely superposed, 6 discrete secondary hot spots.
In addition, on main incident end face and sub- incident end face in the present embodiment, there is the small raised array of lens 15, by small
Homogenizing for lens can make main spot and 9 secondary hot spots uniformly merge transition, reach preferable illuminating effect.
The other structures and principle of the present embodiment are identical with embodiment, repeat no more.
Embodiment 2
As shown in figure 5, the present embodiment includes 3 sub- light source modules, wherein 3 sub- light source modules include 3 product respectively
The LED light source of the second son LED light source of font arrangement or the second son chip COB integration packagings of 3 isosceles triangle arrangements（The small void of Fig. 4
Sub-light source module is represented in wire frame）, 3 sub- light source module centers are to be uniformly distributed off axis relative to the central shaft of lens body,
End face is the curved surface for thinking lens body bottom protrusion at the top of the entrance aperture of this implementation lens, the main incidence of end face at the top of entrance aperture
End face is provided with corresponding sub- incident end face, the sub- incident end face are also to lens bottom side respectively with 3 sub- light source modules
To the curved surface of projection, during work, 3 sub- light source modules are respectively aligned to the center of surface of corresponding sub- incident end face, corresponding son is bent
Face by the Off-axis-light of sub-light source module institute issued section be adjusted to it is parallel with lens body central shaft or sub- incident end face axle
The axle glazed thread or paraxial rays of line, so every sub-light source module all can be imaged one in the presence of its corresponding sub- incident end face
Main compound hot spot on individual axle（Each compound hot spot includes 3 second son hot spots）, while can be in the work of other two incident end faces
With three compound hot spots of pair of lower imaging.Therefore final illuminated field can have three compound hot spots of the master being almost completely superposed, 6 from
Scattered secondary compound hot spot.
The other structures and principle of the present embodiment are identical with embodiment, repeat no more.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection；Should
The understanding description of the invention institute is schematic using accompanying drawing, does not represent actual size and ratio.
Claims (10)
1. a kind of novel secondary light-distribution lens for discrete LED sources, including lens body, the lens body includes incidence
Face and exit facet, it is characterized in that：The plane of incidence includes incident side and incident end face；The incident side is the lens sheet
The side of entrance aperture in body；The incident end face is the end face of the entrance aperture；
Wherein described incident end face includes main incident end face and sub- incident end face；
The main incident end face is to the raised curved surface of lens body bottom direction；
The sub- incident end face is arranged on main incident end face；
The sub- incident end face is to the raised curved surface of lens body bottom direction, for will off-axis son corresponding to sub- incident end face
The some light that light source is sent is adjusted to the corresponding sub- incident end face axis of symmetry parallel with the lens body central shaft
Axle glazing or paraxial light.
2. lens as claimed in claim 1, it is characterized in that：The sub- incident end face with the lens body central axis
Plane on the off-axis sub-light source of projected area >=correspondence with the perspective plane in the plane of the lens body central axis
Long-pending 0.8 times；
The summit of the sub- incident end face is with forming the first subpoint, corresponding sub-light in the plane of lens body central axis
Source central point is with forming the second subpoint, first subpoint to the second projection in the plane of lens body central axis
1 times of the distance between point≤corresponding sub-light source edge to central point ultimate range.
3. lens as claimed in claim 2, it is characterized in that：The LED light source or be by least two that the sub-light source is single
Independent secondary sub-light source forms sub-light source module；The secondary sub-light source is the LED light source of single.
4. the lens as described in one of claims 1 to 3, it is characterized in that：The main incident end face and, or on sub- incident end face it is attached
Secondary lens array, the Secondary lens are raised to lens body bottom direction.
5. lens as claimed in claim 4, it is characterized in that：The main incident end face, sub- incident end face and, or incident side is
Atomization surface.
6. lens as claimed in claim 5, it is characterized in that：The lens body also includes fully reflecting surface, the fully reflecting surface
Positioned at the side of the lens body, the fully reflecting surface is spliced by multiple discrete small curved surfaces.
7. lens as claimed in claim 6, it is characterized in that：The exit facet of the lens be plane, axisymmetric curved surface, plane with
Axisymmetric curved surface combinatorial surface or different axisymmetric curved surface combinatorial surfaces.
8. lens as claimed in claim 7, it is characterized in that：The exit facet is burnishing surface, atomization surface or is by secondary
The small raised lens arrays front that lens are formed.
9. lens as claimed in claim 8, it is characterized in that：The lens have positioner.
A kind of 10. LED lamp equipment, it is characterised in that：Including the lens as described in one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510134692.3A CN104696885B (en) | 2015-03-26 | 2015-03-26 | A kind of novel secondary light-distribution lens and equipment for discrete LED sources |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510134692.3A CN104696885B (en) | 2015-03-26 | 2015-03-26 | A kind of novel secondary light-distribution lens and equipment for discrete LED sources |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104696885A CN104696885A (en) | 2015-06-10 |
| CN104696885B true CN104696885B (en) | 2017-11-10 |
Family
ID=53344277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510134692.3A Active CN104696885B (en) | 2015-03-26 | 2015-03-26 | A kind of novel secondary light-distribution lens and equipment for discrete LED sources |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104696885B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051515B (en) * | 2016-05-30 | 2019-06-14 | 众普森科技（株洲）有限公司 | One kind is with light unit and matches optical assembly |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080310028A1 (en) * | 2007-06-18 | 2008-12-18 | Jeyachandrabose Chinniah | Near field lens for a light assembly |
| CN201661987U (en) * | 2009-11-30 | 2010-12-01 | 中山兴瀚科技有限公司 | Non-imaging uniform light distribution lens |
| CN202140974U (en) * | 2011-06-13 | 2012-02-08 | 杨毅博 | Anti-dazzling LED (light-emitting diode) lens and lamp |
| KR20140104716A (en) * | 2013-02-21 | 2014-08-29 | 삼성전자주식회사 | Light source module and lighting apparatus having the same |
| CN104344336A (en) * | 2013-08-05 | 2015-02-11 | 海洋王（东莞）照明科技有限公司 | Condensing lens and LED lamp with same |
| CN204042756U (en) * | 2014-09-05 | 2014-12-24 | 成都恒坤光电科技有限公司 | A kind of is the lens of many surface-mounted LED light source luminous intensity distributions |
| CN204437997U (en) * | 2015-03-26 | 2015-07-01 | 成都恒坤光电科技有限公司 | A kind of novel secondary light-distribution lens for discrete LED sources and light fixture |
-
2015
- 2015-03-26 CN CN201510134692.3A patent/CN104696885B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104696885A (en) | 2015-06-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102859257B (en) | Compact mixed light LED light engine and narrow beam white led lamps and use its high CRI | |
| JP5974242B2 (en) | Method and apparatus for providing uniform projection illumination | |
| CN103858244B (en) | Lighting device including a plurality of light-emitting elements | |
| JP2006504116A (en) | Uniform lighting system | |
| JP2003526121A (en) | LED light source having visibility adjusting optical system | |
| CN104053946B (en) | For the arrangement using point source of light and light deflection element output light | |
| CN102695915A (en) | Light collector with extended center lens | |
| US20110163334A1 (en) | Colour mixing method for consistent colour quality | |
| CN104712938B (en) | Big-angle LED lamp | |
| CN107062025A (en) | A kind of LED variable-angles alignment light emitting system | |
| CN106090674B (en) | Even condensing LED light source module design method based on free form surface Fresnel Lenses | |
| CN104487762B (en) | Planar light source device and liquid crystal indicator | |
| CN104676485B (en) | A kind of light-distribution lens and equipment for discrete LED sources | |
| CN104696885B (en) | A kind of novel secondary light-distribution lens and equipment for discrete LED sources | |
| CN204437997U (en) | A kind of novel secondary light-distribution lens for discrete LED sources and light fixture | |
| CN204437999U (en) | A kind of multistage secondary light-distribution lens for discrete LED sources and light fixture | |
| CN207034987U (en) | A kind of light distribution element, light-emitting device and lighting apparatus | |
| CN104763977B (en) | A kind of secondary light-distribution lens and equipment for discrete LED sources | |
| CN104763976B (en) | A kind of multistage secondary light-distribution lens and equipment for discrete LED sources | |
| CN204437998U (en) | A kind of secondary light-distribution lens for discrete LED sources and light fixture | |
| CN208546842U (en) | A kind of polychrome starry sky projector | |
| CN205090204U (en) | Lighting lamp | |
| US20180252388A1 (en) | Optical element, lighting device and luminaire | |
| CN107667253A (en) | Lighting apparatus, lens and method | |
| CN103807627B (en) | Light emitting module and illumination device with light emitting module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |