CN109556029B - Reflector and lighting device - Google Patents

Reflector and lighting device Download PDF

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Publication number
CN109556029B
CN109556029B CN201811636381.7A CN201811636381A CN109556029B CN 109556029 B CN109556029 B CN 109556029B CN 201811636381 A CN201811636381 A CN 201811636381A CN 109556029 B CN109556029 B CN 109556029B
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China
Prior art keywords
reflecting surface
light
reflector
light source
formula
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Application number
CN201811636381.7A
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Chinese (zh)
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CN109556029A (en
Inventor
刘燕娟
唐浚康
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Guangdong Delos Lighting Industrial Co Ltd
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Guangdong Delos Lighting Industrial Co Ltd
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Priority to CN201811636381.7A priority Critical patent/CN109556029B/en
Publication of CN109556029A publication Critical patent/CN109556029A/en
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Classifications

    • 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
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • 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
    • F21V7/09—Optical design with a combination of different curvatures
    • 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
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
    • 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
    • F21W2131/103—Outdoor lighting of streets or roads
    • 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)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The application discloses a reflector and a lighting device, wherein the reflector comprises a first reflecting surface, a second reflecting surface and a third reflecting surface, the first reflecting surface, the second reflecting surface and the third reflecting surface are all in a curved surface structure and are sequentially and smoothly connected, the first reflecting surface is used for scattering light rays irradiated to the first reflecting surface, the second reflecting surface is used for converging light rays irradiated to the second reflecting surface, and the third reflecting surface is used for scattering light rays irradiated to the third reflecting surface. The application performs sectional optical design on the reflector, realizes regional control on road illumination, solves the problem of glare of human eyes stimulated in the driving caused by scattering light overflowed to a position above a light interception line, forms a good light interception effect at a distance of road illumination, improves uniformity of the road illumination, realizes glare-free illumination, improves comfort of the road driving, and can be widely applied to the field of optical elements.

Description

Reflector and lighting device
Technical Field
The application relates to the field of optical elements, in particular to a reflector and a lighting device.
Background
Along with the increasingly development of national traffic networks, the guardrail lamp gradually becomes an important road lighting lamp, and compared with the traditional upright street lamp, the guardrail lamp has the advantages of low glare, high illumination utilization rate, easy installation and maintenance and the like, and meets the requirements of people on the comfort of road lighting and energy conservation and environmental protection. The conventional guardrail lamp mainly utilizes a lens to carry out light distribution design, and the light of an LED light source is deflected and converged to a road illumination distance through a special polarized light structure of the lens, so that obvious light interception is formed. However, the lens-shaped structure inevitably has a small part of stray light overflowing to a position above the light interception line, so that glare for stimulating human eyes in driving is caused.
Disclosure of Invention
In order to solve the technical problems, the application aims to provide a reflector for reducing glare illumination.
Another object of the present application is to provide a lighting device for reducing glare lighting
The technical scheme adopted by the application is as follows:
the utility model provides a reflector, includes first reflection of light face, second reflection of light face and third reflection of light face, first reflection of light face, second reflection of light face and third reflection of light face all adopt curved surface structure, and smooth connection in proper order, first reflection of light face is used for scattering the light that shines to first reflection of light face, the second reflection of light face is used for converging the light that shines to second reflection of light face, the third reflection of light face is used for scattering the light that shines to third reflection of light face.
Further, the boundary line between the first reflecting surface and the second reflecting surface is in the same plane with the position of the light source, and the first reflecting surface is particularly used for scattering the light rays ranging from 0 degrees to 30 degrees of the light source.
Further, the second reflecting surface is specifically configured to reflect light rays in a direction of 30 ° -90 ° emitted by the light source, and after the reflected light rays converge, intense light is formed.
Further, the third reflecting surface is specifically configured to astigmatically reflect the light beam in the direction of 90 ° -110 ° emitted by the light source.
Further, the curved path of the cross section of the first reflecting surface satisfies a first formula, where the first formula is:
Y1＝0.06x 4 -0.502x 3 +1.683x 2 -2.75x+2.302
wherein Y1 represents the ordinate, and the value range of the abscissa is 0-3.5.
Further, the curved path of the cross section of the second reflecting surface satisfies a second formula, where the second formula is:
Y2＝0.049x 2 +0.187x-0.45
wherein Y2 represents the ordinate, and the value range of x is more than or equal to 3.5 and less than or equal to 14.5.
Further, the curved path of the cross section of the third reflective surface satisfies a third formula:
Y3＝-0.042x 2 +2.768x-18.751
wherein Y3 represents the ordinate, and the value range of x is more than 14.5 and less than or equal to 23.5.
Further, the first reflecting surface, the second reflecting surface and the third reflecting surface are all made of materials with high reflectivity.
The application adopts another technical scheme that:
a lighting device comprising a light source, a light source panel and a reflector employing a reflector as claimed in any one of claims 1-8.
The beneficial effects of the application are as follows: the application carries out sectional optical design on the reflector, realizes regional control on road illumination, solves the problem of glare of stimulated eyes in driving caused by scattering light overflowed to a position above a light interception line, forms good light interception effect at a distance of road illumination, improves uniformity of road illumination, realizes glare-free illumination, and improves comfort of road driving.
Drawings
FIG. 1 is a schematic diagram of the operation of a reflector of the present application;
FIG. 2 is a schematic view of a reflector according to the present application
FIG. 3 is a front view of a reflector in accordance with one embodiment;
FIG. 4 is a top view of a reflector according to a first embodiment;
FIG. 5 is an oblique view of a reflector in accordance with the first embodiment;
FIG. 6 is a schematic diagram of a first formula and corresponding curve path;
FIG. 7 is a schematic diagram of a second formula and corresponding curve path;
FIG. 8 is a schematic diagram of a third formula and corresponding curve path.
Detailed Description
Example 1
As shown in fig. 1 to 5, the present embodiment provides a reflector, which includes a first reflecting surface 11, a second reflecting surface 12 and a third reflecting surface 13, wherein the first reflecting surface 11, the second reflecting surface 12 and the third reflecting surface 13 all adopt curved structures and are sequentially and smoothly connected, the first reflecting surface 11 is used for scattering light irradiated to the first reflecting surface 11, the second reflecting surface 12 is used for converging light irradiated to the second reflecting surface 12, and the third reflecting surface 13 is used for scattering light irradiated to the third reflecting surface 13.
Referring to fig. 1, the reflector 1 provided in this embodiment is operated with the light source 2 located on the right side of the reflector 1, i.e. the light source 2 is located on the side of the reflector 1 that reflects light. In this embodiment, the light source 2 is provided with the light source board 3, and the light source board 3 is generally provided with a street lamp to block the light irradiated upwards, and the light source board 3 may be made of a reflective material or a general material to block the light scattered to the light source board 3. Referring to fig. 2, the present application designs the structure of the reflector 1 by dividing it into 3 parts, specifically, a first reflecting surface 11, a second reflecting surface 12 and a third reflecting surface 13, and the 3 surfaces are respectively responsible for distributing light of the LED light sources 2 with different angles. The second reflecting surface 12 condenses the light irradiated by the LED light source 2, and condenses the reflected light in the horizontal direction to form strong light with a maximum peak value, which irradiates to the far distance of the road; the emergent light rays have no cross design, so that excellent light interception at the road illumination distance is ensured. The first reflective surface 11 and the third reflective surface 13 play a role of light scattering transition, and are respectively responsible for carrying out light scattering design on the light rays in different light ray ranges of the LED light source 2, so that the light rays are uniformly distributed between strong light and weak light, the transition section is formed, and the uniformity of road illumination is improved. The reflector 1 of the present embodiment realizes highly uniform road illumination by designing the LED light source 2 in the angular region. The good light interception design realizes the glare-free illumination and improves the comfort level of road illumination.
In this embodiment, the front view of the reflector 1 is shown in fig. 3, the top view of the reflector 1 is shown in fig. 4, and the oblique view of the reflector 1 is shown in fig. 5.
Referring to fig. 2, further as a preferred embodiment, the boundary line between the first reflecting surface 11 and the second reflecting surface 12 is in the same plane with the position of the light source 2, and the first reflecting surface is specifically used for scattering the light in the range of 0 ° -30 ° of the light source.
Referring to fig. 2, the point where the light source 2 is located is used as the center, the line connecting the light source 2 and one end of the first reflecting surface 11 is used as the 0 ° line, the first reflecting surface 11 is responsible for diffusing the light within the range of 0 ° -30 ° of the LED light source, and uniformly distributing the light between strong light and weak light, so as to form the supplement of the transition section, and promote the uniformity of road illumination.
Referring to fig. 2, further as a preferred embodiment, the second reflecting surface 12 is specifically configured to reflect light within a range of 30 ° -90 ° from the light source, and after the reflected light is converged, intense light is formed.
The second reflecting surface 12 is responsible for concentrating the light rays within the range of 30-90 degrees of the LED light source, and the reflected light rays are all concentrated in the horizontal direction to form strong light with a maximum peak value, so that the strong light irradiates to the distance of a road. The emergent light rays have no cross design, so that excellent light interception at the road illumination distance is ensured.
Referring to fig. 2, further as a preferred embodiment, the third reflective surface 13 is specifically configured to scatter light within the range of 90 ° -110 ° from the light source.
The third reflecting surface 13 is responsible for carrying out light scattering design on the light rays within the range of 90-110 degrees of the LED light source, uniformly distributing the light rays between strong light and weak light, forming the supplement of a transition section and improving the uniformity of road illumination.
By adjusting the connection angle between the reflector 1 and the light source plate 3, the light of the light source 2 can be distributed on the reflector 1, in this embodiment, the light source plate 3 is biased to the reflector 20 ° based on the light emitting in the horizontal direction of the strong light, so that the light in the range of 110 ° -180 ° of the LED light source freely irradiates the near road area according to the light distribution rule of the lambertian body light source 2, and the light in the rest range irradiates the reflector 1, specifically, the light in the range of 0 ° -30 ° of the LED light source irradiates the first reflecting surface 11, the light in the range of 30 ° -90 ° of the LED light source irradiates the second reflecting surface 12, and the light in the range of 90 ° -110 ° of the LED light source irradiates the third reflecting surface 13, thereby improving the peak light intensity of the strong light portion of the reflector 1, and meanwhile, shielding the stray light of the silica gel portion of the light source 2 by the light source plate 3, thereby effectively reducing glare and improving the illumination comfort.
Referring to fig. 6, further as a preferred embodiment, the curved path of the cross section of the first reflective surface 11 satisfies a first formula:
Y1＝0.06x 4 -0.502x 3 +1.683x 2 -2.75x+2.302
wherein Y1 represents the ordinate, and the value range of the abscissa is 0-3.5.
The curved path of the cross section of the first reflective surface 11 substantially satisfies the first formula, and the correlation coefficient reaches 0.996.
Referring to fig. 7, further as a preferred embodiment, the curved path of the cross section of the second reflecting surface 12 satisfies a second formula:
Y2＝0.049x 2 +0.187x-0.45
wherein Y2 represents the ordinate, and the value range of x is more than or equal to 3.5 and less than or equal to 14.5.
The curved path of the cross section of the second reflective surface 12 substantially satisfies the second formula, and the correlation coefficient reaches 0.999.
Referring to fig. 8, further as a preferred embodiment, the curved path of the cross section of the third reflective surface 13 satisfies a third formula:
Y3＝-0.042x 2 +2.768x-18.751
wherein Y3 represents the ordinate, and the value range of x is more than 14.5 and less than or equal to 23.5.
The curved path of the cross section of the third reflective surface 13 substantially satisfies the third formula, and the correlation coefficient reaches 0.999.
Further as a preferred embodiment, the first reflecting surface 11, the second reflecting surface 12 and the third reflecting surface 13 are made of a material with high reflectivity.
The reflective effects of the first reflective surface 11, the second reflective surface 12 and the third reflective surface 13 can be better realized by adopting a material with high reflectivity, and the material can be adopted by adopting the existing material with high reflectivity, for example, the coating on the reflective surface is an aluminum coating or a nano reflective coating.
The light reflector 1 adopts the structure to reflect the LED light sources 2 in different angle areas, so that the peak light intensity of the strong light part of the light reflector 1 is improved, in addition, the good light interception design realizes the glare-free illumination, the improved comfort level of road illumination, and the light reflector can be widely applied to illumination devices such as guardrail lamps and the like. The adoption structure sectional type carries out reflector 1 structural design to the LED light source 2 in different angle regions, and the curve trend of fine setting reflector 1 structure changes peak light intensity and grading angle etc. all belong to the protection scope of this patent.
Example two
As shown in fig. 1 to 3, the present embodiment provides a lighting device, which includes a light source 2, a light source board 3, and a reflector 1, wherein the reflector 1 is a reflector as described in the first embodiment.
The lighting device of the embodiment has any technical feature combination of the reflector of the embodiment of the application, and has the corresponding function and beneficial effects of the embodiment.
While the preferred embodiment of the present application has been described in detail, the present application is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present application, and the equivalent modifications or substitutions are included in the scope of the present application as defined in the appended claims.

Claims (6)

1. The reflector is characterized by comprising a first reflecting surface, a second reflecting surface and a third reflecting surface, wherein the first reflecting surface, the second reflecting surface and the third reflecting surface are all of curved surface structures and are sequentially and smoothly connected, the first reflecting surface is used for scattering light rays irradiated to the first reflecting surface, the second reflecting surface is used for converging light rays irradiated to the second reflecting surface, and the third reflecting surface is used for scattering light rays irradiated to the third reflecting surface;
the curve path of the cross section of the first reflecting surface meets a first formula, and the first formula is as follows:
Y1＝0.06x 4 -0.502x 3 +1.683x 2 -2.75x+2.302
wherein Y1 represents an ordinate, and the value range of the abscissa is more than or equal to 0 and less than 3.5;
the curve path of the cross section of the second reflecting surface meets a second formula, and the second formula is:
Y2＝0.049x 2 +0.187x-0.45
wherein Y2 represents an ordinate, and the value range of x is more than or equal to 3.5 and less than or equal to 14.5;
the curved path of the cross section of the third reflective surface satisfies a third formula:
Y3＝-0.042x 2 +2.768x-18.751
wherein Y3 represents the ordinate, and the value range of x is more than 14.5 and less than or equal to 23.5.
2. A reflector as claimed in claim 1, characterized in that the boundary line between the first and second reflecting surfaces is in the same plane as the position of the light source, the first reflecting surface being provided in particular for scattering light in the range of 0 ° -30 ° from the light source.
3. A reflector as claimed in claim 2, characterized in that the second reflector is arranged in particular to reflect light rays in the range of 30 ° -90 ° from the light source, and that the reflected light rays, after converging, form intense light.
4. A reflector as claimed in claim 3, characterized in that the third reflecting surface is provided in particular for scattering light in the range of 90 ° -110 ° of the light source.
5. The reflector of claim 1, wherein the first reflective surface, the second reflective surface, and the third reflective surface are each formed of a high reflectivity material.
6. A lighting device comprising a light source, a light source plate and a reflector as claimed in any one of claims 1-5.
CN201811636381.7A 2018-12-29 2018-12-29 Reflector and lighting device Active CN109556029B (en)

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Application Number Priority Date Filing Date Title
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CN109556029B true CN109556029B (en) 2023-10-20

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110332504A (en) * 2019-07-24 2019-10-15 广东德洛斯照明工业有限公司 A kind of reflector and lighting device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101430062A (en) * 2007-08-29 2009-05-13 靳岐亮 Reflection light mirror lamp
CN101655212A (en) * 2008-08-20 2010-02-24 深圳市海洋王照明科技股份有限公司 Anti-dazzle lamp
CN101752355A (en) * 2008-11-28 2010-06-23 夏普株式会社 Light-emitting device
CN102042491A (en) * 2009-10-14 2011-05-04 海洋王照明科技股份有限公司 Floodlight and reflector
CN205824698U (en) * 2016-06-29 2016-12-21 深圳市一窗科技有限责任公司 Lighting

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8465173B2 (en) * 2009-12-07 2013-06-18 Zhen Wang LED lamp and street lamp using the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101430062A (en) * 2007-08-29 2009-05-13 靳岐亮 Reflection light mirror lamp
CN101655212A (en) * 2008-08-20 2010-02-24 深圳市海洋王照明科技股份有限公司 Anti-dazzle lamp
CN101752355A (en) * 2008-11-28 2010-06-23 夏普株式会社 Light-emitting device
CN102042491A (en) * 2009-10-14 2011-05-04 海洋王照明科技股份有限公司 Floodlight and reflector
CN205824698U (en) * 2016-06-29 2016-12-21 深圳市一窗科技有限责任公司 Lighting

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