CN203421626U - Refraction and reflection light emitting device - Google Patents
Refraction and reflection light emitting device Download PDFInfo
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- CN203421626U CN203421626U CN201320504354.0U CN201320504354U CN203421626U CN 203421626 U CN203421626 U CN 203421626U CN 201320504354 U CN201320504354 U CN 201320504354U CN 203421626 U CN203421626 U CN 203421626U
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- catadioptric
- refraction
- optical lens
- face
- light source
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Abstract
The utility model discloses a refraction and reflection light emitting device. According to the refraction and reflection light emitting device, the spreading angle of LED light beams is increased through a specially-designed refraction and reflection optical lens, and the irradiation area of a single LED light source is increased. Further, a high-reflectance reflector plate is matched with the refraction and reflection optical lens to achieve large-angle optical diffusion, and the utilization rate of light is improved. Compared with an existing direct type LED backlight module, a direct type LED backlight module of the refraction and reflection light emitting device has the advantages that the number of needed LEDs can be reduced, so that the Pitch value is increased, the duty ratio is reduced, and cost is lowered; due to the fact that a few of LEDs are used, uniformity of LED light colors of the LEDs can be well controlled, and picture quality of a backlight product is improved; the utilization rate of luminous energy and the brightness of the backlight module are improved; space occupied by a single LED is increased, heat dissipation is facilitated, the temperature of the backlight module is lowered, and the service life of the LEDs and the service life of the backlight module are prolonged.
Description
Technical field
The utility model relates to display and lighting field, and particularly a kind of catadioptric goes out electro-optical device.
Background technology
In recent years, straight-down negative permeates gradually in field of backlights, and its basic motive power that replaces side entering type is low cost.And at downward back optical arena, existing technical scheme all adopts wide-angle optical lens to coordinate the film materials such as reflector plate, diffuser plate, diffusion sheet to realize, as Fig. 1.But the dutycycle H/P that this kind of scheme backlight can reach mostly is 0.3 or higher (H refers to that pcb board is apart from the distance of diffuser plate, and P refers to the distance between light source and light source in straight-down negative scheme).
The shortcoming that existing direct-type backlight scheme exists has: (1) needs a lot of LEDs, and as for 32 inches of TVs, the LED of power in use, at least wants twenty or thirty, and cost is still higher; (2) LED is used a number many, and causing the lamp number of using is that pcb board also increases, and has increased cost; (3) LED is used a number many, and in the space of same size, the heat sending is many, can not leave in time, affects the service life of LED.
Utility model content
The problem existing for prior art, the purpose of this utility model is to provide a kind of catadioptric and goes out electro-optical device, to reduce LED number of the required use of direct-type backlight scheme, and then the lamp number of minimizing use, reduce costs, reduce LED caloric value, extend the service life of LED and backlight module.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of catadioptric goes out electro-optical device, it comprises catadioptric optical lens and LED light source, described catadioptric optical lens is revolving body, by the lower edge part being connected as a single entity, the upper part in main part and top forms, the central authorities of described main part have an opening to lead to lower edge cylindrical cavity exceptionally, on described top, part is cylindrical, there is an opening up flared cavity in its central authorities, described LED light source is arranged on basal plane, described catadioptric optical lens bonds by lower surface and the basal plane of its lower edge part, and LED light source is covered in the cylindrical cavity of its main part, and the axis of catadioptric optical lens and the dead in line of LED light source, light that described LED light source sends part is successively through the refraction of cylindrical cavity end face, the reflection at flared cavity interface and top, top divide the refraction on the face of cylinder to penetrate catadioptric optical lens, part divides the reflection on the face of cylinder and the refraction at flared cavity interface to penetrate catadioptric optical lens through refraction, the top, top of cylindrical cavity end face successively, part penetrates catadioptric optical lens through the end face of cylindrical cavity or the refraction of the face of cylinder and main part outer surface successively.
Preferably, described catadioptric goes out electro-optical device and also comprises reflector plate, and described basal plane is reflector plate surface, or is close to reflector plate surface or parallel at a certain distance with reflector plate surface, and reflector plate is for reflecting the light being mapped on it.
Preferably, the bus of described flared cavity is free curve.
Preferably, what described LED light source sent is greater than 0 ° and be not more than the light within the scope of 12 ° with its optical axis included angle, successively through the refraction of cylindrical cavity end face, the reflection at flared cavity interface and top, top divide the refraction on the face of cylinder to penetrate catadioptric optical lens.
Preferably, what described LED light source sent is greater than 12 ° and be not more than the light within the scope of 30 ° with its optical axis included angle, divides the reflection on the face of cylinder and the refraction at flared cavity interface to penetrate catadioptric optical lens successively through refraction, the top, top of cylindrical cavity end face.
Preferably, what described LED light source sent is greater than 30 ° and be not more than the light within the scope of 90 ° with its optical axis included angle, penetrates catadioptric optical lens successively through the end face of cylindrical cavity or the refraction of the face of cylinder and main part outer surface.
Preferably, the bus of described main part outer surface is free curve.
Preferably, the upper surface of described lower edge part is parallel with basal plane.
Preferably, described catadioptric optical lens is made by optical glass or optical plastic.
Described LED light source can be with also can be without an optical lens.
The utility model, by the catadioptric optical lens of a particular design, has increased the angle of flare of light beam, and the irradiated area of single light source is increased; Further, use high reflectance reflector plate to coordinate catadioptric optical lens to complete the diffusion of wide-angle optics, improved the efficiency of light energy utilization.
Compare with existing direct-light type LED backlight module, apply direct-light type LED backlight module of the present utility model and there is following advantage:
(1) can reduce a required LED number, thereby increase Pitch value, reduce dutycycle, reduce cost;
(2), owing to using LED less number, can control preferably the photochromic uniformity of LED, improve backlight product image quality;
(3) owing to using high reflectance reflector plate to coordinate catadioptric optical lens to carry out secondary reflection, the efficiency of light energy utilization and backlight module brightness have been improved;
(4) owing to having reduced LED, use a number, the shared spatial area of single LEDs is increased, be conducive to heat loss, reduced backlight module temperature, extended the service life of LED and backlight module.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of existing direct-type backlight scheme;
Fig. 2 is the structural representation that the catadioptric of the utility model embodiment goes out electro-optical device;
Fig. 3 is the light path schematic diagram that catadioptric shown in Fig. 2 goes out electro-optical device;
Fig. 4 is the schematic diagram of applying the down straight aphototropism mode set for 32 inches of LCD TVs backlight of the present utility model;
Fig. 5 is the schematic diagram of application 10W panel light of the present utility model.
In figure: 01, diverging lens; 02, reflector plate; 1, basal plane; 2, LED light source; 3, catadioptric optical lens; 31, lower edge part; 32, main part; 320, cylindrical cavity; 33, part on top; 330, flared cavity; 4, reflector plate.
The specific embodiment
Hereinafter in connection with accompanying drawing, embodiment of the present utility model is elaborated.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can be combined mutually.
As shown in Fig. 2～3, the catadioptric of the utility model embodiment goes out electro-optical device and comprises catadioptric optical lens 3 and LED light source 2, catadioptric optical lens 3 is revolving body, by the lower edge part 31 being connected as a single entity, the upper part 33 in main part 32 and top forms, the central authorities of main part 32 have an opening to lead to the cylindrical cavity 320 outside lower edge part 31, on top, part 33 is cylindrical, there is an opening up flared cavity 330 in its central authorities, LED light source 2 is arranged on basal plane 1, catadioptric optical lens 3 is by lower surface and basal plane 1 bonding of its lower edge part 31, and LED light source 2 is covered in the cylindrical cavity 320 of its main part 32, and the dead in line of the axis of catadioptric optical lens 3 and LED light source 2, light that LED light source 2 sends part is successively through the refraction of cylindrical cavity 320 end faces, catadioptric optical lens 3 is penetrated in the refraction on the upper part of the reflection at flared cavity 330 interfaces and top 33 faces of cylinder, part is the reflection on part 33 faces of cylinder and the refraction at flared cavity 330 interfaces ejaculation catadioptric optical lens 3 on the refraction of cylindrical cavity 320 end faces, top successively, part penetrates catadioptric optical lens 3 through the end face of cylindrical cavity 320 or the refraction of the face of cylinder and main part 32 outer surfaces successively.
Preferably, catadioptric goes out electro-optical device and also comprises reflector plate 4, and basal plane 1 is reflector plate 4 surfaces, or is close to reflector plate 4 surfaces or parallel at a certain distance with reflector plate 4 surfaces, and reflector plate 4 is for reflecting the light being mapped on it.
Preferably, the bus of flared cavity 330 is free curve.
Preferably, LED light source 2 is that send is greater than 0 ° and be not more than the light within the scope of 12 ° with its optical axis included angle, successively through the refraction of cylindrical cavity 320 end faces, catadioptric optical lens 3 is penetrated in the refraction on the upper part of the reflection at flared cavity 330 interfaces and top 33 faces of cylinder.
Preferably, LED light source 2 is that send is greater than 12 ° and be not more than the light within the scope of 30 ° with its optical axis included angle, and on the refraction of cylindrical cavity 320 end faces, top, catadioptric optical lens 3 is penetrated in the reflection on part 33 faces of cylinder and the refraction at flared cavity 330 interfaces successively.
Preferably, LED light source 2 is that send is greater than 30 ° and be not more than the light within the scope of 90 ° with its optical axis included angle, penetrates catadioptric optical lens 3 successively through the end face of cylindrical cavity 320 or the refraction of the face of cylinder and main part 32 outer surfaces.
Preferably, the bus of main part 32 outer surfaces is free curve.
Preferably, the upper surface of lower edge part 31 is parallel with basal plane 1.
Preferably, catadioptric optical lens 3 is made by optical glass or optical plastic.Wherein, optical plastic is as polymethyl methacrylate (PMMA) and polycarbonate (PC) etc.
Enumerate application two concrete examples of the present utility model below:
Example one builds the backlight module of 32 inches of LCD TVs backlight
As shown in Figure 4, utilize the LED light source of 10 every 3W, every LEDs light source coordinates wide-angle refraction-reflection optical lens of the present utility model, and the light that wide-angle refraction-reflection optical lens sends LED light source divides three parts to process respectively.What LED light source sent is greater than 30 ° and be not more than light within the scope of 90 ° by refraction with its optical axis included angle, incide diffuser plate, what LED light source sent is greater than 12 ° and be not more than light within the scope of 30 ° by reflection and birefringence with its optical axis included angle, formation is over against the light of LED light source, what LED light source sent is greater than 0 ° and be not more than light within the scope of 12 ° by the secondary reflection of reflection, refraction and reflector plate with its optical axis included angle, the final diffuser plate that arrives, thereby realize the down straight aphototropism mode set illumination of high light efficiency, meet the requirement of 32 inches of LCD TVs backlight.
Example two builds 10w panel light
As shown in Figure 5, utilize the LED light source of 5 2W, coordinate catadioptric optical lens of the present utility model and high reflectance reflector plate, can build efficient 10w panel light.
Compare with existing direct-light type LED backlight module, apply direct-light type LED backlight module of the present utility model and there is following advantage:
(1) can reduce a required LED number, as for 32 inches of backlight products, can by original 20-30 LEDs, be reduced to 10 even still less, thereby increase Pitch value, reduce dutycycle, reduce cost;
(2), owing to using LED less number, can control preferably the photochromic uniformity of LED, improve backlight product image quality;
(3) owing to using high reflectance reflector plate to coordinate catadioptric optical lens to carry out secondary reflection, the efficiency of light energy utilization and backlight module brightness have been improved;
(4) owing to having reduced LED, use a number, the shared spatial area of single LEDs is increased, be conducive to heat loss, reduced backlight module temperature, extended the service life of LED and backlight module.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (9)
1. a catadioptric goes out electro-optical device, it is characterized in that: comprise catadioptric optical lens and LED light source, described catadioptric optical lens is revolving body, by the lower edge part being connected as a single entity, the upper part in main part and top forms, the central authorities of described main part have an opening to lead to lower edge cylindrical cavity exceptionally, on described top, part is cylindrical, there is an opening up flared cavity in its central authorities, described LED light source is arranged on basal plane, described catadioptric optical lens bonds by lower surface and the basal plane of its lower edge part, and LED light source is covered in the cylindrical cavity of its main part, and the axis of catadioptric optical lens and the dead in line of LED light source, light that described LED light source sends part is successively through the refraction of cylindrical cavity end face, the reflection at flared cavity interface and top, top divide the refraction on the face of cylinder to penetrate catadioptric optical lens, part divides the reflection on the face of cylinder and the refraction at flared cavity interface to penetrate catadioptric optical lens through refraction, the top, top of cylindrical cavity end face successively, part penetrates catadioptric optical lens through the end face of cylindrical cavity or the refraction of the face of cylinder and main part outer surface successively.
2. catadioptric according to claim 1 goes out electro-optical device, it is characterized in that: also comprise reflector plate, described basal plane is reflector plate surface, or is close to reflector plate surface or parallel at a certain distance with reflector plate surface, and reflector plate is for reflecting the light being mapped on it.
3. catadioptric according to claim 1 goes out electro-optical device, it is characterized in that: the bus of described flared cavity is free curve.
4. catadioptric according to claim 1 goes out electro-optical device, it is characterized in that: what described LED light source sent is greater than 0 ° and be not more than the light within the scope of 12 ° with its optical axis included angle, successively through the refraction of cylindrical cavity end face, the reflection at flared cavity interface and top, top divide the refraction on the face of cylinder to penetrate catadioptric optical lens.
5. catadioptric according to claim 1 goes out electro-optical device, it is characterized in that: what described LED light source sent is greater than 12 ° and be not more than the light within the scope of 30 ° with its optical axis included angle, through refraction, the top, top of cylindrical cavity end face, divide the reflection on the face of cylinder and the refraction at flared cavity interface to penetrate catadioptric optical lens successively.
6. catadioptric according to claim 1 goes out electro-optical device, it is characterized in that: what described LED light source sent is greater than 30 ° and be not more than the light within the scope of 90 ° with its optical axis included angle, penetrates catadioptric optical lens successively through the end face of cylindrical cavity or the refraction of the face of cylinder and main part outer surface.
7. catadioptric according to claim 1 goes out electro-optical device, it is characterized in that: the bus of described main part outer surface is free curve.
8. catadioptric according to claim 1 goes out electro-optical device, it is characterized in that: the upper surface of described lower edge part is parallel with basal plane.
9. catadioptric according to claim 1 goes out electro-optical device, it is characterized in that: described catadioptric optical lens is made by optical glass or optical plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320504354.0U CN203421626U (en) | 2013-08-19 | 2013-08-19 | Refraction and reflection light emitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320504354.0U CN203421626U (en) | 2013-08-19 | 2013-08-19 | Refraction and reflection light emitting device |
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| Publication Number | Publication Date |
|---|---|
| CN203421626U true CN203421626U (en) | 2014-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320504354.0U Expired - Lifetime CN203421626U (en) | 2013-08-19 | 2013-08-19 | Refraction and reflection light emitting device |
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| Country | Link |
|---|---|
| CN (1) | CN203421626U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453450A (en) * | 2013-08-19 | 2013-12-18 | 易美芯光（北京）科技有限公司 | Refraction and reflection light emitting device |
| CN109027737A (en) * | 2018-06-21 | 2018-12-18 | 深圳创维－Rgb电子有限公司 | A kind of lens, lamp bar, backlight module and display equipment |
-
2013
- 2013-08-19 CN CN201320504354.0U patent/CN203421626U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453450A (en) * | 2013-08-19 | 2013-12-18 | 易美芯光（北京）科技有限公司 | Refraction and reflection light emitting device |
| CN109027737A (en) * | 2018-06-21 | 2018-12-18 | 深圳创维－Rgb电子有限公司 | A kind of lens, lamp bar, backlight module and display equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SHENZHEN BETOP ELECTRONICS Co.,Ltd. Assignor: SHINEON (BEIJING) TECHNOLOGY Co.,Ltd. Contract record no.: 2014440000475 Denomination of utility model: Refraction and reflection light emitting device Granted publication date: 20140205 License type: Exclusive License Record date: 20141202 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EC01 | Cancellation of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: SHENZHEN BETOP ELECTRONICS Co.,Ltd. Assignor: SHINEON (BEIJING) TECHNOLOGY Co.,Ltd. Contract record no.: 2014440000475 Date of cancellation: 20170925 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140205 |