CN109373288B - Wall washer lens, light emitting module with wall washer lens and wall washer - Google Patents
Wall washer lens, light emitting module with wall washer lens and wall washer Download PDFInfo
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- CN109373288B CN109373288B CN201811257715.XA CN201811257715A CN109373288B CN 109373288 B CN109373288 B CN 109373288B CN 201811257715 A CN201811257715 A CN 201811257715A CN 109373288 B CN109373288 B CN 109373288B
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- lens
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/03—Lighting devices intended for fixed installation of surface-mounted type
- F21S8/033—Lighting devices intended for fixed installation of surface-mounted type the surface being a wall or like vertical structure, e.g. building facade
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- 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
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
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- 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
- F21V7/00—Reflectors for light sources
- F21V7/10—Construction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/10—Outdoor lighting
- F21W2131/107—Outdoor lighting of the exterior of buildings
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- 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
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention provides a wall washer lens which is characterized by comprising a lens body and a lens base for supporting the lens body, wherein the lens body comprises an inner surface for receiving light rays emitted from a light source and an outer surface for emitting the light rays, the outer surface comprises a first curved surface for totally reflecting the light rays to a wall washing surface, a second curved surface for refracting the light rays to the wall washing surface and a third curved surface for totally reflecting the light rays to the wall washing surface, the first curved surface, the second curved surface and the third curved surface are formed by rotating continuous curves around a Y axis, the Y axis is an optical axis of the light source, and an origin point is a position of the light source. The invention aims to provide a wall washer lens, a light emitting module with the wall washer lens and a wall washer, which can reduce stray light and improve light efficiency through the combined action of three curved surfaces. The whole lens can realize polarized light and uniform illumination distribution of the wall surface without deflection, and the near light and the far light of the wall surface are prevented from being sharply attenuated.
Description
The invention relates to a divisional application with the application date of 2016, 02/02 and the application number of 201610074250.9, namely a wall washer lens, a light-emitting module with the wall washer lens and a wall washer.
Technical Field
The invention relates to a wall washer lens, a light emitting module with the wall washer lens and a wall washer.
Background
The LED wall washing lamp is characterized in that the illumination of the lamp uniformly sweeps the wall surface from top to bottom just like a water curtain on the wall surface, but the illumination effect of long distance and high uniformity can be realized under the condition of low power in practical application. The actual lighting effect of the wall washing lamp is that the light attenuation is rapid, the illuminance of light spots on the wall washing surface is uneven, and the lighting effect is low due to the light emitting characteristics of the LED light source and the limitation of the installation position.
Disclosure of Invention
The invention aims to provide a pinup washing lens, a light emitting module with the pinup washing lens and a pinup washing lamp.
In order to solve the above problems, an embodiment of the present invention provides a lens for a wall washer, including a lens body and a lens base supporting the lens body, where the lens body includes an inner surface for receiving light emitted from a light source and an outer surface for emitting the light, where the outer surface includes a first curved surface for totally reflecting the light to a wall washing surface, a second curved surface for refracting the light to the wall washing surface, and a third curved surface for totally reflecting the light to the wall washing surface, where the first curved surface, the second curved surface, and the third curved surface are formed by rotating a continuous curve around a Y axis, the Y axis is an optical axis of the light source, and an origin is a position of the light source;
the first curved surface is a total reflection surface, and the outline of the first curved surface can be defined by the following integral equation:where ro is θ ═ θminThe distance between the starting point of the time lens and the original point, theta is the included angle between the incident ray and the Y axis, and gamma is the included angle between the emergent ray and the Y axis;
the profile of the second surface may be defined by solving the following integral equation:where ro is θ ═θminThe distance between the starting point of the time lens and the original point, theta is the included angle between the incident ray and the Y axis, gamma is the included angle between the emergent ray and the Y axis, and n is the refractive index of the time lens;
a first plane vertical to the Y axis is arranged between the first curved surface and the second curved surface.
In one embodiment, the third curved surface is a total internal reflection surface, and the profile of the third curved surface is defined by solving the following integral equation:where ro is θ ═ θminThe distance between the starting point of the time lens and the original point, theta is the included angle between the incident ray and the Y axis, and gamma is the included angle between the emergent ray and the Y axis.
In one embodiment, a cavity is formed between the inner surface and the lens base for receiving a light source.
In one embodiment, a second plane perpendicular to the Y-axis is disposed between the second curved surface and the third curved surface.
Another object of the present invention is to provide a light emitting module having the lens for wall washer of the aforementioned type, wherein the light emitting module is an LED module, i.e. an LED light source is installed in the cavity of the wall washer. Because the light emitting module is provided with the wall washer lens, the light loss can be reduced, and the light efficiency is improved. The whole lens can realize polarized light without deflection, and is convenient to mount.
Drawings
FIG. 1 is a cross-sectional view of a light emitting module of an embodiment of the present invention;
fig. 2 is a schematic perspective view of a light emitting module according to an embodiment of the invention;
FIG. 3 is a graph of an illuminance distribution of a light emitting module according to an embodiment of the present invention;
FIG. 4 is a light intensity distribution diagram of two cross-sections of a light emitting module according to an embodiment of the present invention;
FIG. 5 is a structural view of a wall washer according to an embodiment of the present invention;
FIG. 6 is a view of a wall wash fixture incorporating the lens of the present invention according to an embodiment of the present invention.
The attached drawings are marked as follows: A. a first curved surface; B. a second curved surface; C. a third curved surface; G. washing the wall lamp lens; H. a first plane; J. an inner surface; K. a second plane; l, a light source; m, a lens body; r, a cavity; s, a lens base.
Detailed Description
The above and further features and advantages of the present invention will be apparent from the following, complete description of the invention, taken in conjunction with the accompanying drawings, wherein the described embodiments are merely some, but not all embodiments of the invention.
As shown in fig. 1, a wall washer lens G includes a lens body M and a lens base S supporting the lens body M. The lens body M includes an inner surface J that receives light emitted from the light source L and an outer surface that emits light. A cavity R for accommodating the light source L is formed between the inner surface J and the lens base S. In the figure, the Y axis is an optical axis, the outer surface comprises a first curved surface A, a first plane H, a second curved surface B, a second plane K and a third curved surface C, and the first curved surface A and the second curved surface B are formed by rotating continuous curves for 180 degrees around the Y axis; the third curved surface C is formed by rotating a continuous curve around the Y axis by-180 degrees; the first plane H is arranged between the first curved surface A and the second curved surface B and is vertical to the Y axis; the second plane K is arranged between the second curved surface B and the third curved surface C and is vertical to the Y axis.
The first curved surface A is a total reflection surface and is used for totally reflecting light to the wall washing surface to avoid overlarge light intensity at a position close to the lamp. The profile of the first curved surface a may be defined by the following integral equation:where ro is θ ═ θminThe value of the time lens, theta is the angle between the incident ray and the Y axis, and gamma is the angle between the emergent ray and the Y axis.
The second curved surface B is used for refracting light to a wall washing surface, so that the deflection of the light is realized, and the illumination uniformity is improved. The profile of the second curved surface B can be defined by solving the following integral equation:where ro is θ ═ θminThe value of the lens, theta, isThe included angle between the emergent ray and the Y axis, gamma is the included angle between the emergent ray and the Y axis, and n is the refractive index of the lens.
The third curved surface C is a total internal reflection surface and is used for totally reflecting light to the wall washing surface, so that the light deflection is realized, the light effect is improved, and the illumination uniformity is improved. The profile of the third curved surface C is defined by solving the following integral equation:where ro is θ ═ θminThe value of the time lens, theta is the angle between the incident ray and the Y axis, and gamma is the angle between the emergent ray and the Y axis.
As shown in fig. 2, a light emitting module having a lens G of the aforementioned type is an LED module, i.e., an LED light source L is mounted in a cavity R of a wall washer. Because the light emitting module is provided with the non-rotational symmetric pinup washing lens G, the light loss can be reduced, and the light effect is improved. The whole lens can realize polarized light without deflection, and is convenient to mount.
As shown in fig. 3 to 4, the light spots of the light emitting module are uniformly distributed in the target area in the vertical direction, and the uniformity of the illumination reaches above 0.75.
As shown in fig. 5 to 6, a wall washer lamp includes an array of a plurality of light emitting modules of the above type. Because wash the pinup and have above-mentioned light emitting module, can reduce stray light, improve the light efficiency, should wash the illuminance evenly distributed of pinup, the homogeneity reaches more than 0.75, the light efficiency is more than 0.65.
The conception of the invention is that the light near one side of the wall surface of the wall is reflected by the light to realize the uniform distribution of the target illumination of the wall surface of the wall, the second curved surface B is obtained by calculating the profile integral equation of the second curved surface B, the light near one side of the wall surface of the wall is difficult to overcome the peak value near the lamp by the reflection of the light alone due to the total reflection in the design process, and then the first curved surface A is introduced to convert the light with the total reflection into the total internal reflection, so that the uniform distribution of the target illumination of the wall surface of the wall is realized. The light far away from one side of the wall washing surface is reflected to the wall washing surface through the third curved surface C, and the target illumination of the wall washing surface is uniformly distributed. Because the design targets of the first curved surface A, the second curved surface B and the third curved surface C are all to realize the uniform distribution of the illumination in the area which accords with the design targets, the uniform distribution of the illumination of the wall washing surface is realized by the whole lens. The light loss can be reduced through the combined action of the three curved surfaces, and the light effect is improved. The whole lens need not deflect and just can realize the polarisation, the installation of being convenient for to and wash the illuminance evenly distributed of wall, the homogeneity reaches more than 0.75, and the light efficiency is more than 0.65. The lens can effectively control light rays, so that the illuminance of light spots on the wall surface is uniformly distributed, the uniformity is more than 0.75, and the condition that the near light and the far light of the wall surface are sharply attenuated is avoided.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make variations and modifications of the present invention without departing from the spirit and scope of the present invention by using the methods and technical contents disclosed above.
Claims (6)
1. A wall washer lens is characterized by comprising a lens body and a lens base for supporting the lens body, wherein the lens body comprises an inner surface for receiving light rays emitted from a light source and an outer surface for emitting the light rays, the outer surface comprises a first curved surface for totally reflecting the light rays to a wall washing surface, a second curved surface for refracting the light rays to the wall washing surface and a third curved surface for totally reflecting the light rays to the wall washing surface, the first curved surface, the second curved surface and the third curved surface are formed by rotating continuous curves around a Y axis, the Y axis is an optical axis of the light source, and an origin point is a position of the light source;
the first curved surface is a total reflection surface, and the outline of the first curved surface can be defined by the following integral equation:herein, theIs thatThe distance from the starting point of the lens to the origin,is the angle between the incident ray and the Y-axis,is the angle between the emergent ray and the Y axis;
the profile of the second surface may be defined by solving the following integral equation:herein, theIs thatThe distance from the starting point of the lens to the origin,is the angle between the incident ray and the Y-axis,is the angle between the outgoing ray and the Y-axis,is the refractive index of the lens;
a first plane vertical to the Y axis is arranged between the first curved surface and the second curved surface;
and a second plane vertical to the Y axis is arranged between the second curved surface and the third curved surface.
2. The wash wall lamp lens of claim 1, wherein the third curved surface is a total internal reflection surface, and the profile of the third curved surface is defined by solving the following integral equation:herein, theIs thatThe distance from the starting point of the lens to the origin,is the angle between the incident ray and the Y-axis,is the angle between the outgoing ray and the Y-axis.
3. The lens of claim 1, wherein the inner surface and the lens base define a cavity therebetween for receiving a light source.
4. A light emitting module having the wall washer lens of any one of claims 1-3.
5. The lighting module of claim 4, wherein the lighting module is an LED module.
6. A wall washer comprising a plurality of arrays of light emitting modules as claimed in claim 4 or 5.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201811257715.XA CN109373288B (en) | 2016-02-02 | 2016-02-02 | Wall washer lens, light emitting module with wall washer lens and wall washer |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN201811257715.XA CN109373288B (en) | 2016-02-02 | 2016-02-02 | Wall washer lens, light emitting module with wall washer lens and wall washer |
CN201610074250.9A CN105546432B (en) | 2016-02-02 | 2016-02-02 | Wall lamp lens, light emitting module and wall lamp with the wall lamp lens |
Related Parent Applications (1)
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CN201610074250.9A Division CN105546432B (en) | 2016-02-02 | 2016-02-02 | Wall lamp lens, light emitting module and wall lamp with the wall lamp lens |
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CN109373288A CN109373288A (en) | 2019-02-22 |
CN109373288B true CN109373288B (en) | 2020-07-03 |
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CN201811258401.1A Active CN109386770B (en) | 2016-02-02 | 2016-02-02 | Wall washer lens, light emitting module with wall washer lens and wall washer |
CN201811257715.XA Active CN109373288B (en) | 2016-02-02 | 2016-02-02 | Wall washer lens, light emitting module with wall washer lens and wall washer |
CN201610074250.9A Active CN105546432B (en) | 2016-02-02 | 2016-02-02 | Wall lamp lens, light emitting module and wall lamp with the wall lamp lens |
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CN201811258401.1A Active CN109386770B (en) | 2016-02-02 | 2016-02-02 | Wall washer lens, light emitting module with wall washer lens and wall washer |
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CN201610074250.9A Active CN105546432B (en) | 2016-02-02 | 2016-02-02 | Wall lamp lens, light emitting module and wall lamp with the wall lamp lens |
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Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106764938B (en) * | 2016-12-06 | 2023-06-13 | 广东德洛斯照明工业有限公司 | LED wall washer lens |
CN106500014B (en) * | 2016-12-30 | 2018-09-25 | 杭州光锥科技有限公司 | Wall lamp lens, light emitting module and wall lamp |
CN109915765A (en) * | 2016-12-30 | 2019-06-21 | 杭州光锥科技有限公司 | Projecting Lamp lens, light emitting module and Projecting Lamp |
CN107062156B (en) * | 2017-05-31 | 2023-07-21 | 浙江光锥科技有限公司 | Wash pinup lens, have this light emitting module who washes pinup lens and wash pinup |
CN107327760B (en) * | 2017-08-11 | 2024-03-29 | 华格照明科技(上海)有限公司 | Embedded wall washing lamp |
TWI669547B (en) * | 2017-09-28 | 2019-08-21 | 周聰明 | Light source guiding device |
CN108758563B (en) * | 2018-03-13 | 2023-09-29 | 深圳市美斯特光电技术有限公司 | Light control element and light source device |
CN109489003A (en) * | 2018-12-03 | 2019-03-19 | 深圳市美斯特光电技术有限公司 | Light control element and light supply apparatus |
CN113339755B (en) * | 2021-06-05 | 2022-12-27 | 长春希达电子技术有限公司 | Integrated large-space lighting optical device and installation method thereof |
CN114857543B (en) * | 2021-06-28 | 2024-01-26 | 浙江光锥科技有限公司 | Light projector lens, light emitting module with light projector lens and light projector |
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US6598998B2 (en) * | 2001-05-04 | 2003-07-29 | Lumileds Lighting, U.S., Llc | Side emitting light emitting device |
DE102004026530B3 (en) * | 2004-05-29 | 2006-02-02 | Fer Fahrzeugelektrik Gmbh | optical body |
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EP2297513A1 (en) * | 2008-05-30 | 2011-03-23 | Koninklijke Philips Electronics N.V. | Illumination device comprising a collimator |
CN102695915B (en) * | 2009-12-21 | 2015-09-30 | 马丁专业公司 | There is the optical collector of the center lens of extension |
CN201621617U (en) * | 2010-03-08 | 2010-11-03 | 陈锦定 | LED condenser lens |
CN102788315B (en) * | 2011-05-20 | 2016-09-07 | 欧司朗股份有限公司 | Lens, the light emitting module with these lens and indoor wall washer lamp |
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CN203732746U (en) * | 2013-11-06 | 2014-07-23 | 苏州东显光电科技有限公司 | Reflective secondary lens |
CN203731286U (en) * | 2013-12-26 | 2014-07-23 | 四川新力光源股份有限公司 | Led lens |
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CN204573911U (en) * | 2014-12-06 | 2015-08-19 | 深圳市俄菲照明有限公司 | Oval luminous intensity distribution wall lamp lens |
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 |
CN205480588U (en) * | 2016-02-02 | 2016-08-17 | 杭州光锥科技有限公司 | Wash pinup lens, have this and wash light emitting module of pinup lens and wash pinup |
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2016
- 2016-02-02 CN CN201811258401.1A patent/CN109386770B/en active Active
- 2016-02-02 CN CN201811257715.XA patent/CN109373288B/en active Active
- 2016-02-02 CN CN201610074250.9A patent/CN105546432B/en active Active
Also Published As
Publication number | Publication date |
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CN109386770B (en) | 2021-01-01 |
CN109386770A (en) | 2019-02-26 |
CN105546432B (en) | 2018-12-28 |
CN105546432A (en) | 2016-05-04 |
CN109373288A (en) | 2019-02-22 |
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