CN205826896U - A kind of lens for LED liquid crystal television back lighting lamp bead - Google Patents
A kind of lens for LED liquid crystal television back lighting lamp bead Download PDFInfo
- Publication number
- CN205826896U CN205826896U CN201620726182.5U CN201620726182U CN205826896U CN 205826896 U CN205826896 U CN 205826896U CN 201620726182 U CN201620726182 U CN 201620726182U CN 205826896 U CN205826896 U CN 205826896U
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- collecting part
- light collecting
- lens
- light
- lamp bead
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Abstract
This is the most novel discloses a kind of lens for LED liquid crystal television back lighting lamp bead, lens have be located at the incidence surface bottom it, exiting surface that relative incidence surface is located at lensed tip and the light collecting part be located between incidence surface and exiting surface;Medium position bottom light collecting part integrally protrudes out and is shaped with incident ring, sets Fresnel Lenses face in the periphery of the bottom incidence ring of light collecting part, is additionally provided with four positioning shaft post on the bottom of light collecting part, and this four positioning shaft post is distributed on the corner location bottom light collecting part;Four positioning shaft post are affixed with LED light source location for these lens, and incidence surface is for receiving the light from LED light source, and the light being incident to light collecting part via incident ring and Fresnel Lenses face goes out light via the side of exiting surface and light collecting part.These novel lens ensure light efficiency in the case of size reduction and use function constant, and raw-material consumption is little;After lens and light source are prepared as lamp bead, size is little, can reduce the spacing that LED lamp bead is arranged on pcb board, saves PCB input cost.
Description
Technical field
This utility model relates to field of LED illumination, particularly to a kind of saturating for LED liquid crystal television back lighting lamp bead
Mirror.
Background technology
Light emitting diode (Light Emitting Diode, LED) because of have low in energy consumption, life-span length, volume are little and bright
Spend high characteristic and be widely applied to a lot of field.Light directly from light emitting diode outgoing tends not to very well at present
Ground meets lighting demand, and general employing is installed the mode of lens on a light emitting diode additional and is adjusted its output light type.Root
According to the difference to light regulating effect, lens can be divided into again light-focusing type and two kinds of astigmatism type.Due to lighting field generally to light intensity
Requiring higher, therefore light-focusing type lens are the most extensive in the application of this field.LED shot-light secondary optical light distribution lens, basic training
Can be rising angle and the light extraction efficiency controlling light.But, the control energy of the most conventional light-focusing type lens on light beam angle
Power is not enough, causes some light with larger angle outgoing, thus causes the edge jaundice of output light type or showing of bright circle occur
As, it is unfavorable for that industry is applied.Furthermore, existing lens are in the case of light source is certain, because its size is big, the raw material of demand is relatively
Many;When minification, its light efficiency can change with using function, and is welded on backlight illumination assembly mating with light source
Time, the wider width of pcb board demand, therefore raw material is the biggest with PCB cost.
Utility model content
Of the present utility model solving the technical problem that is the defect for above-mentioned existence of the prior art, provides one to use
In the lens of LED liquid crystal television back lighting lamp bead, these lens are in the case of lamp source is constant, and lens sizes is little and light efficiency and use
Function improves.
For solving above-mentioned technical problem, the technical scheme that this utility model is taked is as follows: a kind of for the LED liquid crystal television back of the body
The lens of optical illumination lamp bead, these lens have be located at the incidence surface bottom it, the most described incidence surface is located at going out of lensed tip
Bright finish and be located at the light collecting part between described incidence surface and exiting surface;Wherein, the medium position one bottom described light collecting part
Body protrudes out and is shaped with incident ring, and in the bottom of described light collecting part, the periphery of described incident ring sets Fresnel Lenses face, at described optically focused
It is additionally provided with four positioning shaft post on the bottom in portion, and this four positioning shaft post is distributed on the corner location bottom described light collecting part;
Described four positioning shaft post are affixed with LED light source location for these lens, and described incidence surface is for receiving the light from LED light source
Line, is incident to the light of light collecting part via described exiting surface and described light collecting part via described incident ring and Fresnel Lenses face
Side goes out light.
It is expanded on further as to upper technical scheme:
In technique scheme, described lens are rotary structure.
In technique scheme, described light collecting part is column light collecting part, and described light collecting part height is 6.2mm-
6.4mm;Described light collecting part includes the first light collecting part near described exiting surface and the second light collecting part near described incidence surface, institute
Stating the second light collecting part is to the outside convex light collecting part prolonging into skirt section of light collecting part, and the diameter of the second light collecting part is from described first optically focused
Portion becomes larger towards incidence surface direction;Described in described second light collecting part lower end, the bottom of light collecting part sets one outside described light collecting part
The convex square skirt section prolonged of portion's surrounding, this square skirt section constitutes the bottom base of described light collecting part, and four limits, limit in this square skirt section
The height in the square skirt section of a length of 13mm-15mm, preferably 14mm is 1.1mm-1.3mm, preferably 1.2mm.Further, described light collecting part
Side include mating the first side of described first light collecting part and mate the second side of described second light collecting part, and described the
Two side faces is the curved surface to light collecting part outer projection.
In technique scheme, described exiting surface is the inverted cone side to lens interior depression, this inverted cone side
The affiliated bottom surface of circular cone is positioned at same level with the end face of described light collecting part, and the basal diameter of this circular cone is φ 11mm-φ
12mm, preferably φ 11.51mm.
In technique scheme, described incident ring is the round table-like incident ring caved in lens, and the bottom surface of incident ring
A diameter of φ 5.3mm-φ 5.5mm, preferably φ 5.4mm.
In technique scheme, a diameter of φ 1.5-φ 1.65mm of described positioning shaft post, preferably φ 1.62mm, post is high
For 0.80mm-1.0mm, preferably 0.90mm.
Compared with prior art, the beneficial effects of the utility model are: lens of the present utility model ensure light efficiency and
In the case of using function constant, minification, thus reduce raw-material consumption;These novel lens are prepared as lamp with light source
When being applied to LED liquid crystal television backlight illumination assembly after pearl, the spacing of LED lamp bead arrangement can be reduced, thus reduce the width of pcb board
Degree, thus save PCB input cost.
Accompanying drawing explanation
Fig. 1 is this new type lens incidence surface perspective view upward；
Fig. 2 is the plan view of Fig. 1；
Fig. 3 is this new type lens exiting surface perspective view upward；
Fig. 4 is the front view of Fig. 3；
Fig. 5 is A-A cross section view in Fig. 3.
In figure, 1. incidence surface;2. light collecting part;21. first light collecting parts, 22. second light collecting parts, 23. square skirt sections, 211.
One side, 222. second sides;4. incident ring;5. positioning shaft post;6. Fresnel Lenses face.
Detailed description of the invention
With embodiment, this utility model is described in further detail below in conjunction with the accompanying drawings.
Accompanying drawing 1-5 example a kind of specific embodiment of the present utility model.With reference to accompanying drawing 1-5, a kind of for LED liquid crystal electricity
Depending on the lens of back lighting lamp bead, these lens are rotary structure, and these lens have and are located at incidence surface 1 bottom it, relatively
Described incidence surface 1 is located at the exiting surface 3 of lensed tip and is located at the light collecting part 2 between described incidence surface 1 and exiting surface 3;
Wherein, described light collecting part 2 is column light collecting part, and described light collecting part 2 height H3For 6.2-6.4mm, preferably
6.31mm;Described light collecting part 2 includes gathering near the first light collecting part 21 of described exiting surface 3 and the second of close described incidence surface 1
Light portion 22, described second light collecting part 22 is to the outside convex light collecting part prolonging into skirt section of light collecting part 2, and the diameter of the second light collecting part 22
Become larger towards incidence surface 2 direction from described first light collecting part 21;The end of light collecting part 2 described in described second light collecting part 22 lower end
Portion sets one to the outside convex square skirt section 23 extended of surrounding of described light collecting part 2, and this square skirt section 23 constitutes described light collecting part 2
Bottom base, and four limit length of sides D in this square skirt section 23 are 13mm-15mm, preferably 14mm, the height H in square skirt section 231For
1.1mm-1.3mm, preferably 1.2mm;The side of described light collecting part 2 then correspondence is by the side of described first light collecting part 21 namely
First side 211 and the side of described second light collecting part 22 namely the second side 221 are constituted, and described second side 221 be to
The curved surface of light collecting part 2 outer projection, this curved surface is circular arc camber.
Described exiting surface 3 is the inverted cone side to lens interior depression, the bottom surface of circular cone belonging to this inverted cone side with
The end face of described light collecting part 2 is positioned at same level, and the basal diameter L of this circular cone2For φ 11-φ 12mm, preferably φ
11.51mm。
Medium position bottom described light collecting part 2 integrally protrudes out and is shaped with incident ring 4, and this incidence ring 4 is for cave in lens
Round table-like incident ring 4, and the basal diameter L of incident ring 43For φ 5.3-φ 5.5mm, preferably φ 5.4mm.At described light collecting part
The periphery of the described incident ring 4 in bottom of 2 sets Fresnel Lenses face 6, and Fresnel Lenses face 6 is used for making light be uniformly distributed, for light efficiency
It is uniformly distributed offer to compensate；The bottom of described light collecting part 2 also sets up and is provided in lens by four positioning shaft post 5(reality
On the bottom face of square skirt section 23, and it is distributed on four angles), and this four positioning shaft post 5 is distributed on bottom described light collecting part 2
On corner location, a diameter of φ 1.5-φ 1.65mm, preferably 1.62mm, a height of 0.80-1.0mm of post of described positioning shaft post 5, excellent
Select 0.90mm.
Described four positioning shaft post 5 of these novel lens are affixed with LED light source location for these lens, complete lamp bead and prepare
After, described incidence surface 1 can receive the light from LED light source, is incident to gather with Fresnel Lenses face 6 via described incident ring 1
The light in light portion 2 goes out light via the side (211,221) of described exiting surface 3 and described light collecting part 2.
Lens of the present utility model in the case of light source is certain, minification, specifically the diameter L of incident ring 43
Constant, but light collecting part 2 and size reduction, square skirt section 23 is narrowed down to 14mm by original 17.0mm, and the height of light collecting part 2 by
8mm narrows down to 6.31mm, light efficiency is constant, and the use function of similar lamp bead is constant or strengthens, the namely size of lamp bead lens
Diminish (non-equidimension diminishes), but its light efficiency and use function are constant, even improve, the size reduction of lens, for reducing
Raw-material consumption has well improvement, simultaneously as the size of lens diminishes, can reduce the spacing of LED lamp bead arrangement, thus
With the lamp bead increased number of arrangement on the pcb board of size, namely reducing the width of pcb board under unit quantity, being beneficial to can be by
Former demand width is that to narrow down to width be 16mm for the PCB of 21mm, has saved PCB input cost in application link.
Below not technical scope of the present utility model is imposed any restrictions, all according to this utility model technical spirit to
On embodiment any amendment, equivalent variations and the modification made, all still fall within the range of the technical solution of the utility model.
Claims (10)
1. the lens for LED liquid crystal television back lighting lamp bead, it is characterised in that: these lens have to be located at bottom it
Incidence surface, the most described incidence surface are located at the exiting surface of lensed tip and are located at the optically focused between described incidence surface and exiting surface
Portion;Wherein, the medium position bottom described light collecting part integrally protrudes out and is shaped with incident ring, is entering described in the bottom of described light collecting part
The periphery penetrating ring sets Fresnel Lenses face, is additionally provided with four positioning shaft post, and this four locating shaft on the bottom of described light collecting part
Post is distributed on the corner location bottom described light collecting part;Described four positioning shaft post are affixed with LED light source location for these lens,
Described incidence surface, for receiving the light from LED light source, is incident to light collecting part via described incident ring with Fresnel Lenses face
Light go out light via the side of described exiting surface and described light collecting part.
A kind of lens for LED liquid crystal television back lighting lamp bead the most according to claim 1, it is characterised in that: institute
Stating lens is rotary structure.
A kind of lens for LED liquid crystal television back lighting lamp bead the most according to claim 1, it is characterised in that: institute
Stating light collecting part is column light collecting part, and described light collecting part height is 6.2mm-6.4mm;Described light collecting part include near described in go out light
First light collecting part in face and the second light collecting part of close described incidence surface, described second light collecting part prolongs into for convex outside light collecting part
The light collecting part in skirt section, and the diameter of the second light collecting part becomes larger towards incidence surface direction from described first light collecting part;Described
The bottom of light collecting part described in two optically focused subordinate's ends sets one to the outside convex square skirt section prolonged of surrounding of described light collecting part, this square skirt section
Constituting the bottom base of described light collecting part, and the four limit length of sides in this square skirt section are 13mm-15mm, the height in square skirt section is
1.1mm-1.3mm。
A kind of lens for LED liquid crystal television back lighting lamp bead the most according to claim 3, it is characterised in that: institute
The four limit length of sides stating square skirt section are 14mm, and the height in square skirt section is 1.2mm.
5. according to a kind of lens for LED liquid crystal television back lighting lamp bead described in claim 3 any one, its feature
It is: the side of described light collecting part includes mating the first side of described first light collecting part and mates the of described second light collecting part
Two side faces, and described second side is the curved surface to light collecting part outer projection.
6., according to a kind of lens for LED liquid crystal television back lighting lamp bead described in claim 1-5 any one, it is special
Levy and be: described exiting surface is the inverted cone side to lens interior depression, the bottom surface of circular cone belonging to this inverted cone side and institute
The end face stating light collecting part is positioned at same level, and the basal diameter of this circular cone is φ 11mm-φ 12mm.
A kind of lens for LED liquid crystal television back lighting lamp bead the most according to claim 6, it is characterised in that: institute
Stating the basal diameter of circular cone belonging to inverted cone side is φ 11.51mm.
A kind of lens for LED liquid crystal television back lighting lamp bead the most according to claim 6, it is characterised in that: institute
Stating incident ring is the round table-like incident ring caved in lens, and the basal diameter of incident ring is φ 5.3mm-φ 5.5mm.
A kind of lens for LED liquid crystal television back lighting lamp bead the most according to claim 8, it is characterised in that: institute
The basal diameter stating incident ring is φ 5.4mm.
A kind of lens for LED liquid crystal television back lighting lamp bead the most according to claim 8, it is characterised in that: institute
State a diameter of φ 1.5mm-φ 1.65mm, a height of 0.80-1.0mm of post of positioning shaft post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620726182.5U CN205826896U (en) | 2016-07-12 | 2016-07-12 | A kind of lens for LED liquid crystal television back lighting lamp bead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620726182.5U CN205826896U (en) | 2016-07-12 | 2016-07-12 | A kind of lens for LED liquid crystal television back lighting lamp bead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205826896U true CN205826896U (en) | 2016-12-21 |
Family
ID=57564584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620726182.5U Expired - Fee Related CN205826896U (en) | 2016-07-12 | 2016-07-12 | A kind of lens for LED liquid crystal television back lighting lamp bead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205826896U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556085A (en) * | 2019-01-25 | 2019-04-02 | 中山市华艺灯饰照明股份有限公司 | It is a kind of to intersect light mixing lens component and the lamps and lanterns using it |
| CN110187554A (en) * | 2018-02-22 | 2019-08-30 | 船井电机株式会社 | Lighting device and display device |
-
2016
- 2016-07-12 CN CN201620726182.5U patent/CN205826896U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110187554A (en) * | 2018-02-22 | 2019-08-30 | 船井电机株式会社 | Lighting device and display device |
| CN110187554B (en) * | 2018-02-22 | 2021-09-17 | 船井电机株式会社 | Illumination device and display device |
| CN109556085A (en) * | 2019-01-25 | 2019-04-02 | 中山市华艺灯饰照明股份有限公司 | It is a kind of to intersect light mixing lens component and the lamps and lanterns using it |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A lens for LED LCD TV illuminating lamp bead that is shaded Effective date of registration: 20170922 Granted publication date: 20161221 Pledgee: China Co truction Bank Corp Dongguan branch Pledgor: Dongguan Liangyou Hardware Co., Ltd. Registration number: 2017440000093 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161221 Termination date: 20210712 |