CN206330087U - A kind of LED lens - Google Patents
A kind of LED lens Download PDFInfo
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- CN206330087U CN206330087U CN201720010211.2U CN201720010211U CN206330087U CN 206330087 U CN206330087 U CN 206330087U CN 201720010211 U CN201720010211 U CN 201720010211U CN 206330087 U CN206330087 U CN 206330087U
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- reflecting surface
- light
- refraction
- led
- lens
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Abstract
The utility model discloses a kind of LED lens.The LED lens include：Side wall plane of refraction, total reflection curved surface and positive plane of refraction are around LED light axle formation rotary body；4th reflecting surface and the 5th reflecting surface are intersecting, and the 6th reflecting surface and the 7th reflecting surface are intersecting, and the 4th reflecting surface and the 6th reflecting surface are intersecting；4th reflecting surface, the 5th reflecting surface, the 6th reflecting surface and the 7th reflecting surface are respectively positioned on the first side of lens；3rd reflecting surface is located at the second side of lens, and the first side is oppositely arranged with the second side.The technical scheme that the utility model embodiment is provided, effectively the exit direction that light source emits beam is deflected, while etendue conservation is met, reduce the width of LED lens light-emitting areas, the length of LED lens light-emitting areas is added, the application of the special lighting occasion of narrower light-emitting area is disclosure satisfy that.
Description
Technical field
The utility model embodiment is related to optical field, more particularly to a kind of LED lens.
Background technology
Light emitting diode (Light Emitting Diode, LED) is as new generation of green lighting source, with light efficiency
Height, long lifespan, safety, energy-saving and environmental protection and many merits such as bright in luster, thus be widely used in indoor and outdoor lighting, backlight,
The fields such as medical treatment, traffic.
The LED used in lighting field power is typically larger than 0.3 watt, and its characteristics of luminescence is luminous similar to lambert's body, removes
Some special circumstances, will typically design optical lens and pointedly carry out secondary light-distribution to LED light source, to reach using will
Ask.The lens being typically designed, the optical axis of light beam is consistent with LED optical axis, and in the case where requiring low-angle illumination,
The exiting surface size of lens is larger, it is impossible to meet the application of some special occasions.
Utility model content
The utility model provides a kind of LED lens, to deflect light beam optical axis direction, reduces the width of lens light-emitting area, increases
Plus the length of lens light-emitting area.
On the one hand, the utility model embodiment provides a kind of LED lens, and the LED lens include：
Side wall plane of refraction, total reflection curved surface, positive plane of refraction, LED light axle and the light being arranged on the LED light axle
Source, also includes：First reflecting surface, the second reflecting surface, the 3rd reflecting surface, exit facet, the 4th reflecting surface, the 5th reflecting surface, the 6th
Reflecting surface and the 7th reflecting surface, wherein：
Side wall plane of refraction, total reflection curved surface and positive plane of refraction are around LED light axle formation rotary body；
4th reflecting surface and the 5th reflecting surface are intersecting, and the 6th reflecting surface and the 7th reflecting surface are intersecting, the 4th reflecting surface and the
Six reflectings surface intersect；
4th reflecting surface, the 5th reflecting surface, the 6th reflecting surface and the 7th reflecting surface are respectively positioned on the first side of lens；
3rd reflecting surface is located at the second side of lens, and first side is oppositely arranged with second side；
First light beam of light source is incided after being reflected through side wall plane of refraction on total reflection curved surface, is totally reflected the emergent light of curved surface
Beam is incided on the first reflecting surface and the second reflecting surface respectively；Second light beam of light source is incident respectively after being reflected through positive plane of refraction
Onto the first reflecting surface and the second reflecting surface；
The outgoing beam of first reflecting surface passes through exit face after the 3rd reflective surface；
First outgoing beam of the second reflecting surface sequentially passes through the 4th reflecting surface, the 5th reflecting surface and the 3rd reflective surface
Afterwards, exit face is passed through；Second outgoing beam of the second reflecting surface sequentially passes through the 6th reflecting surface, the 7th reflecting surface and the 3rd
After reflective surface, pass through exit face.
A kind of technical scheme for LED lens that the utility model is provided, has effectively deflected the outgoing side that light source emits beam
To while etendue conservation is met, reducing the width of LED lens light-emitting areas, add LED lens light-emitting areas
Length, makes light from relatively long and narrow surface outgoing, disclosure satisfy that the application of the special lighting occasion of narrower light-emitting area.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is used only for explaining the utility model, rather than limits of the present utility model.Further need exist for
It is bright, for the ease of description, the part related to the utility model rather than entire infrastructure are illustrate only in accompanying drawing.
Fig. 1 is a kind of structural representation for LED lens that the utility model embodiment is provided；
Fig. 2 is a kind of front view for LED lens that the utility model embodiment is provided；
Fig. 3 is a kind of top view for LED lens that the utility model embodiment is provided；
Fig. 4 is a kind of side view for LED lens that the utility model embodiment is provided；
Fig. 5 is the profile along A-A LED lens in Fig. 3 that the utility model embodiment is provided.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is used only for explaining the utility model, rather than limits of the present utility model.Further need exist for
It is bright, for the ease of description, the part related to the utility model rather than entire infrastructure are illustrate only in accompanying drawing.
Fig. 1 is a kind of structural representation for LED lens that the utility model embodiment is provided；Fig. 2 is that the utility model is real
A kind of front view of LED lens of example offer is provided；Fig. 3 is a kind of top view for LED lens that the utility model embodiment is provided；
Fig. 4 is a kind of side view for LED lens that the utility model embodiment is provided；Fig. 5 is the edge that the utility model embodiment is provided
The profile of the LED lens of A-A in Fig. 3.Referring to Fig. 1 to Fig. 5, the LED lens include：Side wall plane of refraction 1, total reflection curved surface
2nd, positive plane of refraction 3, LED light axle 12 and the light source 13 being arranged on the LED light axle 12, also include：First reflecting surface 4,
Second reflecting surface 5, the 3rd reflecting surface 6, exit facet 7, the 4th reflecting surface 8, the 5th reflecting surface 9, the 6th reflecting surface 10 and the 7th are anti-
Face 11 is penetrated, wherein：Side wall plane of refraction 1, total reflection curved surface 2 and positive plane of refraction 3 are around the formation rotary body of LED light axle 12；4th is anti-
Penetrate the reflecting surface 9 of face 8 and the 5th to intersect, the 6th reflecting surface 10 and the 7th reflecting surface 11 are intersecting, the 4th reflecting surface 8 and the 6th reflecting surface
10 intersect；4th reflecting surface 8, the 5th reflecting surface 9, the 6th reflecting surface 10 and the 7th reflecting surface 11 are respectively positioned on the first side of lens；
3rd reflecting surface 6 is located at the second side of lens, and first side is oppositely arranged with second side；First light beam of light source 13
Incided after being reflected through side wall plane of refraction 1 on total reflection curved surface 2, to incide first respectively anti-for the outgoing beam of total reflection curved surface 2
Penetrate on the reflecting surface 5 of face 4 and second；Second light beam of light source 13 incides the first reflecting surface 4 respectively after being reflected through positive plane of refraction 3
On the second reflecting surface 5；After the outgoing beam of first reflecting surface 4 reflects through the 3rd reflecting surface 6, pass through the outgoing of exit facet 7；Second
First outgoing beam of reflecting surface 5 is sequentially passed through after the 4th reflecting surface 8, the 5th reflecting surface 9 and the reflection of the 3rd reflecting surface 6, is passed through
The outgoing of exit facet 7；Second outgoing beam of the second reflecting surface 5 sequentially passes through the 6th reflecting surface 10, the 7th reflecting surface 11 and the 3rd
After reflecting surface 6 reflects, pass through the outgoing of exit facet 7.
In the present embodiment, LED lens use optical resin material, it is preferred that LED lens use poly-methyl methacrylate
Ester (Polymethyl Methacrylate, PMMA) material, material medium refractive index 1.49.Side wall plane of refraction 1, total reflection are bent
Face 2 and positive plane of refraction 3 are around the formation rotary body of LED light axle 12.Second light beam of light source 13 is by positive plane of refraction 3, by folding
The light beam for penetrating face 3 changes the shooting angle of original light beam by reflecting；First light beam of light source 13 is by side wall plane of refraction 1, so
After be totally reflected face 2 and reflect to form collimated light beam.Wherein, light source 13 can be LED.By positive plane of refraction 3 light beam and
It is constrained on by the light beam for being totally reflected curved surface 2 in a small angular range, and passes through the first reflecting surface 4 and the second reflecting surface
5, collimated light beam is divided into the light beam in two different directions.The light beam of first reflecting surface 4 reflection reaches the 3rd reflecting surface 6, and
Exit facet 7 is reflexed to by the 3rd reflecting surface 6, wherein, exit facet 7 is plane of refraction, and light beam is gone out from exit facet 7 in the form of refraction
Penetrate, be distributed to illumination region.The light beam of second reflecting surface 5 reflection arrives separately at the 4th reflecting surface 8 and the 6th reflecting surface 10, by light
Beam is divided into the light beam of two different directions.The 5th reflecting surface is reflected to again by the first outgoing beam of the 4th reflecting surface 8
9, the 3rd reflecting surface 6 is then reached, then exit facet 7 is reflexed to by the 3rd reflecting surface 6, light beam is refracted distribution by exit facet 7
To illumination region；The 7th reflecting surface 11 is reflected to by the second outgoing beam of the 6th reflecting surface 10, the 3rd is then reached anti-
Face 6 is penetrated, then exit facet 7 is reflexed to by the 3rd reflecting surface 6, light beam is refracted by exit facet 7 and is distributed to illumination region.
It is all to reflex to exit facet 7 by the 3rd reflectings surface 6, from the direction of the light beam of the outgoing of exit facet 7 and light source from LED
The light beam sent it is in opposite direction, i.e., the light beam that light source is sent has deflected 180 °.Light-emitting area width dimensions only have original by side
The half for the rotary body diameter that wall plane of refraction 1, total reflection curved surface 2 and positive plane of refraction 3 are formed around LED light axle 12, length increase
For 2 times.LED lens materials refractive index is more than air refraction, and reflecting surface is designed using total reflection principle, reduces light energy damage
Consumption, that is, ensure that the high usage to light of lens, form a relatively long and narrow light-emitting area, can meet narrower light-emitting area
The application of special lighting occasion.
Optionally, for the ease of making to reduce cost, the first reflecting surface 4, the second reflecting surface 5, the 3rd reflecting surface 6,
Four reflectings surface 8, the 5th reflecting surface 9, the 6th reflecting surface 10 and the 7th reflecting surface 11 are planar structure.Optionally, the first reflection
Face 4, the second reflecting surface 5, the 3rd reflecting surface 6, the 4th reflecting surface 8, the 5th reflecting surface 9, the 6th reflecting surface 10 and the 7th reflecting surface
11 are curved-surface structure.It should be noted that the first reflecting surface 4, the second reflecting surface 5, the 3rd reflecting surface 6, the 4th reflecting surface 8,
5th reflecting surface 9, the 6th reflecting surface 10 and the 7th reflecting surface 11 can also be it is therein it is any one or more be planar structure,
Others are curved-surface structures, the design requirement different to meet user.
A kind of technical scheme for LED lens that the utility model is provided, has effectively deflected the outgoing side that light source emits beam
To while etendue conservation is met, reducing the width of LED lens light-emitting areas, add LED lens light-emitting areas
Length, makes light from relatively long and narrow surface outgoing, disclosure satisfy that the application of the special lighting occasion of narrower light-emitting area.
Note, above are only preferred embodiment of the present utility model and institute's application technology principle.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, can carried out for a person skilled in the art various bright
Aobvious change, readjust and substitute without departing from protection domain of the present utility model.Therefore, although pass through above example
The utility model is described in further detail, but the utility model is not limited only to above example, is not departing from
In the case that the utility model is conceived, other more Equivalent embodiments can also be included, and scope of the present utility model is by appended
Right determine.
Claims (3)
1. a kind of LED lens, the LED lens include：Side wall plane of refraction (1), total reflection curved surface (2), positive plane of refraction (3),
LED light axle (12) and the light source (13) being arranged on the LED light axle (12), it is characterised in that also include：First reflecting surface
(4), the second reflecting surface (5), the 3rd reflecting surface (6), exit facet (7), the 4th reflecting surface (8), the 5th reflecting surface (9), the 6th anti-
Face (10) and the 7th reflecting surface (11) are penetrated, wherein：
Side wall plane of refraction (1), total reflection curved surface (2) and positive plane of refraction (3) are around LED light axle (12) formation rotary body；
4th reflecting surface (8) and the 5th reflecting surface (9) are intersecting, and the 6th reflecting surface (10) and the 7th reflecting surface (11) are intersecting, and the 4th
Reflecting surface (8) and the 6th reflecting surface (10) are intersecting；
4th reflecting surface (8), the 5th reflecting surface (9), the 6th reflecting surface (10) and the 7th reflecting surface (11) are respectively positioned on the of lens
Side；
3rd reflecting surface (6) is located at the second side of lens, and first side is oppositely arranged with second side；
First light beam of light source (13) is incided after being reflected through side wall plane of refraction (1) on total reflection curved surface (2), is totally reflected curved surface
(2) outgoing beam is incided on the first reflecting surface (4) and the second reflecting surface (5) respectively；Second light beam of light source (13) is through just
Incided respectively on the first reflecting surface (4) and the second reflecting surface (5) after being reflected to plane of refraction (3)；
After the outgoing beam of first reflecting surface (4) reflects through the 3rd reflecting surface (6), pass through exit facet (7) outgoing；
First outgoing beam of the second reflecting surface (5) sequentially passes through the 4th reflecting surface (8), the 5th reflecting surface (9) and the 3rd reflection
After the reflection of face (6), pass through exit facet (7) outgoing；Second outgoing beam of the second reflecting surface (5) sequentially passes through the 6th reflecting surface
(10) after, the 7th reflecting surface (11) and the 3rd reflecting surface (6) reflect, exit facet (7) outgoing is passed through.
2. LED lens according to claim 1, it is characterised in that the first reflecting surface (4), the second reflecting surface (5), the 3rd
Reflecting surface (6), the 4th reflecting surface (8), the 5th reflecting surface (9), the 6th reflecting surface (10) and the 7th reflecting surface (11) are plane
Structure.
3. LED lens according to claim 1, it is characterised in that the first reflecting surface (4), the second reflecting surface (5), the 3rd
Reflecting surface (6), the 4th reflecting surface (8), the 5th reflecting surface (9), the 6th reflecting surface (10) and the 7th reflecting surface (11) are curved surface
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720010211.2U CN206330087U (en) | 2017-01-05 | 2017-01-05 | A kind of LED lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720010211.2U CN206330087U (en) | 2017-01-05 | 2017-01-05 | A kind of LED lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206330087U true CN206330087U (en) | 2017-07-14 |
Family
ID=59293947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720010211.2U Active CN206330087U (en) | 2017-01-05 | 2017-01-05 | A kind of LED lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206330087U (en) |
-
2017
- 2017-01-05 CN CN201720010211.2U patent/CN206330087U/en active Active
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