CN102537832A - Fresnel lens and lamp with same - Google Patents
Fresnel lens and lamp with same Download PDFInfo
- Publication number
- CN102537832A CN102537832A CN2010106106105A CN201010610610A CN102537832A CN 102537832 A CN102537832 A CN 102537832A CN 2010106106105 A CN2010106106105 A CN 2010106106105A CN 201010610610 A CN201010610610 A CN 201010610610A CN 102537832 A CN102537832 A CN 102537832A
- Authority
- CN
- China
- Prior art keywords
- lateral wall
- fresnel lenses
- ring groove
- curvature
- radius
- 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.)
- Granted
Links
Images
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Lenses (AREA)
Abstract
The invention relates to a Fresnel lens and a lamp with the same. The Fresnel lens comprises an incident surface and a concave refracting surface opposite to the incident surface, and is characterized in that: the concave refracting surface is formed by dividing a plurality of concentrically-formed annular grooves; each annular groove comprises an inner side wall close to an optical axis of the lens and an outer side wall far away from the optical axis of the lens; the inner side wall of each annular groove is vertical to the incident surface; and the outer side wall of each annular groove is inclined to the optical axis of the lens. The concave refracting surface is formed by dividing the concentrically-formed annular grooves and is not a single concave refracting surface, so that the thickness, volume and occupied space of the lens are greatly reduced, the volume of the lamp with the lens is also greatly reduced, installation and design difficulty is reduced, manufacturing materials are saved, and waste and cost are reduced; and meanwhile, after parallel light is emitted by the Fresnel lens, a floodlight illumination beam with a half-intensity angle of about 40 degrees is generated for floodlight illumination.
Description
[technical field]
The present invention relates to a kind of optical lens, relate in particular to a kind of Fresnel Lenses and use the light fixture of this Fresnel Lenses.
[background technology]
At present, when light fixture carries out floodlighting, need use Fresnel Lenses light beam of light source is become flood beam.
The tradition Fresnel Lenses has the plane of incidence and single refractive, concave surface (being generally concave surface).But single refractive, concave surface can cause the thickness of lens excessive (generally greater than 10mm), thereby makes that the lens occupation space is bigger; Increase the difficulty of installation and design, caused using the light fixture volume of floodlight lens excessive, expended too much manufactured materials; Cause waste, cost is increased.
[summary of the invention]
In view of this, be necessary the Fresnel Lenses that provides a kind of thickness little.
In addition, a kind of light fixture that uses above-mentioned Fresnel Lenses is provided.
A kind of Fresnel Lenses; Comprise the plane of incidence and the refractive, concave surface relative with the said plane of incidence; Said refractive, concave surface is split to form by the ring groove of a plurality of concentric settings; Said ring groove comprises a madial wall and the lateral wall away from said lens axis near said lens axis, and the madial wall of said ring groove is perpendicular to the plane of incidence, and the lateral wall of said ring groove tilts towards lens axis.
Preferably, the said plane of incidence is the plane, and the madial wall of said a plurality of ring grooves laterally arranges, and the lateral wall radius of curvature of said ring groove increases progressively with fixed value successively.
Preferably, said refractive, concave surface is split to form by three ring grooves that are provided with one heart, outwards respectively is by lens axis: first ring groove, second ring groove and ring groove.
Preferably; Said first ring groove comprises first madial wall and first lateral wall; Said first ring groove also comprises a center disc, and second madial wall that said second ring groove comprises and second lateral wall, the 3rd ring groove comprise the 3rd madial wall and the 3rd lateral wall;
The radius of curvature of said center disc, first lateral wall, second lateral wall and the 3rd lateral wall increases progressively with fixed value successively.
Preferably, the radius of curvature of said center disc is 13 to 15mm, and the radius of curvature of said first lateral wall is 15 to 17mm, and the radius of curvature of said second lateral wall is 17 to 19mm, and the radius of curvature of said the 3rd lateral wall is 19 to 21mm.
Preferably, the radius of curvature of said center disc is 14mm, and the radius of curvature of said first lateral wall is 16mm, and the radius of curvature of said second lateral wall is 18mm, and the radius of curvature of said the 3rd lateral wall is 20mm.
Preferably, said center disc is 1mm along minimum thickness between the lens axis and the said plane of incidence; Said first lateral wall is 0.5mm along minimum thickness between the lens axis and the said plane of incidence; Said second lateral wall is 0.5mm along minimum thickness between the lens axis and the said plane of incidence; Said the 3rd lateral wall is 0.5mm along minimum thickness between the lens axis and the said plane of incidence.
Preferably, said Fresnel Lenses external diameter is 31.5 to 34mm, and thickness vertically is 4 to 5.5mm.
Preferably, said Fresnel Lenses external diameter is 32.5mm, and thickness vertically is 4.5mm.
A kind of light fixture comprises Fresnel Lenses, and said Fresnel Lenses is above-mentioned Fresnel Lenses.
Above-mentioned luxuriant and rich with fragrance Neil lens and use the light fixture of this Fresnel Lenses, refractive, concave surface is split to form by the ring groove of a plurality of concentric settings, but not single refractive, concave surface; Thereby greatly reduce the thickness of lens, greatly reduce the lens volume and take up room, use the light fixture volume of these lens also to significantly reduce; Reduced the difficulty of installation and design; Practiced thrift manufactured materials, cut the waste, cost is reduced.
Simultaneously, directional light carries out floodlighting through producing the floodlighting light beam about 40 degree of half light intensity angle after this Fresnel Lenses outgoing.
[description of drawings]
Fig. 1 is a Fresnel Lenses structure axial section among the embodiment;
Fig. 2 is a Fresnel Lenses structure rearview among the embodiment;
Fig. 3 is a Fresnel Lenses structure side view among the embodiment;
Fig. 4 is Fresnel Lenses luminous intensity distribution figure among the embodiment.
[specific embodiment]
Below in conjunction with accompanying drawing, specific embodiments of the invention is described in detail.
Fresnel Lenses comprises the plane of incidence and the refractive, concave surface relative with the plane of incidence; This refractive, concave surface is split to form by the ring groove of a plurality of concentric settings; Ring groove comprises that a madial wall near lens axis reaches the lateral wall away from lens axis; The madial wall of ring groove is perpendicular to the plane of incidence, and the lateral wall of ring groove tilts towards lens axis.The lateral wall radius of curvature of ring groove increases progressively with fixed value successively.
Fig. 1 is a Fresnel Lenses structure axial section among the embodiment.Fig. 2 is a Fresnel Lenses structure rearview among the embodiment.Fig. 3 is a Fresnel Lenses structure side view among the embodiment.
In conjunction with Fig. 1 to Fig. 3, this Fresnel Lenses comprises the plane of incidence 100 and refractive, concave surface 200.Refractive, concave surface 200 is split to form by the ring groove 300 of a plurality of concentric settings; Ring groove 300 comprises that a madial wall near lens axis 400 reaches the lateral wall away from lens axis 400; The madial wall of ring groove 300 is perpendicular to the plane of incidence 100, and the lateral wall of ring groove 300 tilts towards lens axis 400.The lateral wall of a plurality of ring grooves 300 radius of curvature each other is different.
Among this embodiment, the plane of incidence 100 is the plane.
Refractive, concave surface 200 is split to form by three ring grooves 300 that are provided with one heart, outwards respectively is by lens axis 400: first ring groove 310, second ring groove 320 and the 3rd ring groove 330.
First madial wall 311, second madial wall 321 and the 331 parallel settings of the 3rd madial wall.
The radius of curvature of center disc 313, first lateral wall 312, second lateral wall 322 and the 3rd lateral wall 332 increases progressively with fixed value successively.
The radius of curvature R 1 of center disc 313 is 13 to 15mm, is preferably 14mm, is 1mm along minimum thickness D1 between the lens axis 400 and the plane of incidence 100;
The radius of curvature R 2 of first lateral wall 312 is 15 to 17mm, is preferably 16mm, is 0.5mm along minimum thickness D2 between the lens axis 400 and the plane of incidence 100;
The radius of curvature R 3 of second lateral wall 322 is 17 to 19mm, is preferably 18mm, is 0.5mm along minimum thickness D3 between the lens axis 400 and the plane of incidence 100;
The radius of curvature R 4 of the 3rd lateral wall 332 is 19 to 21mm, is preferably 20mm, is 0.5mm along minimum thickness D4 between the lens axis 400 and the plane of incidence 100.
Among this embodiment, the Fresnel Lenses material adopts PMMA (gathering methyl-propyl acid methyl esters, i.e. lucite), and is one-body molded.External diameter is 31.5 to 34mm, is preferably 32.5mm, and thickness vertically is 3.5 to 5mm, is preferably 4.5mm.
Fig. 4 is Fresnel Lenses luminous intensity distribution figure among the embodiment.This Fresnel Lenses, directional light incides refractive, concave surface 200 by the plane of incidence 100, and refractive, concave surface 200 is separated by three ring grooves 300; The lateral wall radius of curvature of ring groove 300 is different; Directional light is reflected, directional light is become flood beam, realize floodlighting.Through measuring, directional light produces the floodlighting light beam about 40 degree of half light intensity angle through this Fresnel Lenses outgoing, satisfies the floodlighting requirement of most of light fixtures.Refractive, concave surface 200 is split to form by ring groove 300 and is not single curved surface, thereby has reduced the thickness of lens greatly, and taking up room diminishes greatly.
In other embodiments, lens also can adopt glass material.
In addition, a kind of light fixture that uses above-mentioned Fresnel Lenses also is provided.
Above-mentioned luxuriant and rich with fragrance Neil lens and use the light fixture of this Fresnel Lenses, refractive, concave surface is split to form by the ring groove of a plurality of concentric settings, but not single refractive, concave surface; Thereby greatly reduce the thickness of lens, greatly reduce the lens volume and take up room, use the light fixture volume of these lens also to significantly reduce; Reduced the difficulty of installation and design; Practiced thrift manufactured materials, cut the waste, cost is reduced.
Simultaneously, directional light carries out floodlighting through producing the floodlighting light beam about 40 degree of half light intensity angle after this Fresnel Lenses outgoing.
The above embodiment has only expressed several kinds of embodiments of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the present invention's design, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with accompanying claims.
Claims (10)
1. Fresnel Lenses; Comprise the plane of incidence and the refractive, concave surface relative with the said plane of incidence; It is characterized in that said refractive, concave surface is split to form by the ring groove of a plurality of concentric settings, said ring groove comprises a madial wall and the lateral wall away from said lens axis near said lens axis; The madial wall of said ring groove is perpendicular to the plane of incidence, and the lateral wall of said ring groove tilts towards lens axis.
2. Fresnel Lenses according to claim 1 is characterized in that, the said plane of incidence is the plane, and the madial wall of said a plurality of ring grooves laterally arranges, and the lateral wall radius of curvature of said ring groove increases progressively with fixed value successively.
3. Fresnel Lenses according to claim 2 is characterized in that, said refractive, concave surface is split to form by three ring grooves that are provided with one heart, outwards respectively is by lens axis: first ring groove, second ring groove and ring groove.
4. Fresnel Lenses according to claim 3; It is characterized in that; Said first ring groove comprises first madial wall and first lateral wall; Said first ring groove also comprises a center disc, and second madial wall that said second ring groove comprises and second lateral wall, the 3rd ring groove comprise the 3rd madial wall and the 3rd lateral wall;
The radius of curvature of said center disc, first lateral wall, second lateral wall and the 3rd lateral wall increases progressively with fixed value successively.
5. Fresnel Lenses according to claim 4; It is characterized in that; The radius of curvature of said center disc is 13 to 15mm; The radius of curvature of said first lateral wall is 15 to 17mm, and the radius of curvature of said second lateral wall is 17 to 19mm, and the radius of curvature of said the 3rd lateral wall is 19 to 21mm.
6. Fresnel Lenses according to claim 5; It is characterized in that the radius of curvature of said center disc is 14mm, the radius of curvature of said first lateral wall is 16mm; The radius of curvature of said second lateral wall is 18mm, and the radius of curvature of said the 3rd lateral wall is 20mm.
7. Fresnel Lenses according to claim 4 is characterized in that, said center disc is 1mm along minimum thickness between the lens axis and the said plane of incidence; Said first lateral wall is 0.5mm along minimum thickness between the lens axis and the said plane of incidence; Said second lateral wall is 0.5mm along minimum thickness between the lens axis and the said plane of incidence; Said the 3rd lateral wall is 0.5mm along minimum thickness between the lens axis and the said plane of incidence.
8. according to the Fresnel Lenses of claim 1, it is characterized in that said Fresnel Lenses external diameter is 31.5 to 34mm, thickness vertically is 4 to 5.5mm.
9. according to Claim 8 Fresnel Lenses is characterized in that said Fresnel Lenses external diameter is 32.5mm, and thickness vertically is 4.5mm.
10. a light fixture comprises Fresnel Lenses, it is characterized in that, said Fresnel Lenses is aforesaid right requirement 1 to 9 arbitrary described Fresnel Lenses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010610610.5A CN102537832B (en) | 2010-12-29 | 2010-12-29 | Fresnel lens and lamp with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010610610.5A CN102537832B (en) | 2010-12-29 | 2010-12-29 | Fresnel lens and lamp with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102537832A true CN102537832A (en) | 2012-07-04 |
| CN102537832B CN102537832B (en) | 2014-05-07 |
Family
ID=46345409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010610610.5A Expired - Fee Related CN102537832B (en) | 2010-12-29 | 2010-12-29 | Fresnel lens and lamp with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102537832B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851374A (en) * | 2012-12-05 | 2014-06-11 | 鸿富锦精密工业（深圳）有限公司 | Light-emitting diode group and lens thereof |
| CN103900022A (en) * | 2012-12-27 | 2014-07-02 | 鸿富锦精密工业（深圳）有限公司 | Lens and backlight module with lens |
| TWI551892B (en) * | 2015-09-02 | 2016-10-01 | 原相科技股份有限公司 | Multi-segment Optical Component and Related Optical Detecting Device Capable of Increasing SNR |
| CN114966918A (en) * | 2022-07-25 | 2022-08-30 | 允沃能源科学研究(江苏)有限公司 | Fresnel lens and imaging system with same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59205774A (en) * | 1983-05-09 | 1984-11-21 | Nec Corp | Semiconductor light-emitting element |
| JPS63165802A (en) * | 1986-12-27 | 1988-07-09 | Masao Kanazawa | Sheet lens and video recording and reproducing method using same |
| JPH0966772A (en) * | 1995-09-01 | 1997-03-11 | Murakami Corp | Rear-vision device of vehicle |
| JP2009184066A (en) * | 2008-02-06 | 2009-08-20 | Jtekt Corp | Method of machining concave fresnel lens shape member, and concave fresnel lens shape member |
| KR20100119603A (en) * | 2009-05-01 | 2010-11-10 | 희성전자 주식회사 | Led package with wide lighting angle |
-
2010
- 2010-12-29 CN CN201010610610.5A patent/CN102537832B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59205774A (en) * | 1983-05-09 | 1984-11-21 | Nec Corp | Semiconductor light-emitting element |
| JPS63165802A (en) * | 1986-12-27 | 1988-07-09 | Masao Kanazawa | Sheet lens and video recording and reproducing method using same |
| JPH0966772A (en) * | 1995-09-01 | 1997-03-11 | Murakami Corp | Rear-vision device of vehicle |
| JP2009184066A (en) * | 2008-02-06 | 2009-08-20 | Jtekt Corp | Method of machining concave fresnel lens shape member, and concave fresnel lens shape member |
| KR20100119603A (en) * | 2009-05-01 | 2010-11-10 | 희성전자 주식회사 | Led package with wide lighting angle |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851374A (en) * | 2012-12-05 | 2014-06-11 | 鸿富锦精密工业（深圳）有限公司 | Light-emitting diode group and lens thereof |
| CN103900022A (en) * | 2012-12-27 | 2014-07-02 | 鸿富锦精密工业（深圳）有限公司 | Lens and backlight module with lens |
| TWI551892B (en) * | 2015-09-02 | 2016-10-01 | 原相科技股份有限公司 | Multi-segment Optical Component and Related Optical Detecting Device Capable of Increasing SNR |
| CN114966918A (en) * | 2022-07-25 | 2022-08-30 | 允沃能源科学研究(江苏)有限公司 | Fresnel lens and imaging system with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102537832B (en) | 2014-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101893200B (en) | Condenser lens and lamp using same | |
| AU2010263211A1 (en) | Skylight cover with prismatic dome and cylinder portions | |
| CN102537832B (en) | Fresnel lens and lamp with same | |
| US20100328958A1 (en) | Led module | |
| TW201523033A (en) | Omnidirectional light emitting diode lens | |
| CN105222097A (en) | A kind of light fixture and optics module thereof | |
| CN205447433U (en) | Luminous range adjustable LED spotlight | |
| CN219473486U (en) | Intelligent lamp | |
| CN203927756U (en) | A kind of light fixture and optics module thereof | |
| CN105402656B (en) | LED spotlight structure | |
| CN204084179U (en) | A kind of pyramid dome skylight | |
| CN204026524U (en) | A kind of LED Optical devices | |
| CN208188535U (en) | A kind of single lamp lens of arc concave shape | |
| CN201697041U (en) | LED lens | |
| CN102374481A (en) | Lens And Lamp Using The Same | |
| JP2011181429A (en) | Led lighting device and method of manufacturing the same | |
| CN215951315U (en) | Zero-glare lens set for lamp | |
| CN204786171U (en) | Organic glass LED lens | |
| CN206400180U (en) | A kind of projection lamp camera lens | |
| CN204786175U (en) | Non - imaging optics system of LED lamps and lanterns | |
| CN213240629U (en) | Waterproof type light beam lamp camera lens | |
| CN218954720U (en) | LED flashlight with ultrathin lens | |
| CN202993047U (en) | Lamp inner shade | |
| CN206875347U (en) | A kind of control light Lamp cup for LED lamp | |
| CN108758562B (en) | Light-scattering-free directional off-axis waterproof wall-washing LED optical lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20140507 Termination date: 20181229 |