CN203686776U - Artificial device simulating overcast sky - Google Patents
Artificial device simulating overcast sky Download PDFInfo
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- CN203686776U CN203686776U CN201420005195.4U CN201420005195U CN203686776U CN 203686776 U CN203686776 U CN 203686776U CN 201420005195 U CN201420005195 U CN 201420005195U CN 203686776 U CN203686776 U CN 203686776U
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Abstract
The utility model discloses an artificial device simulating the overcast sky. The artificial device comprises an optical reflection structure, electric light sources, light diffusion films and a frame structure. The frame structure is a defined structure, and the horizontal section of the defined structure is polygonal or round. The electric light sources are arranged at the top of the frame structure space, and one light diffusion film is arranged at the lower ends of the electric light sources. The optical reflection structure is made of mirror reflection material arranged on the inner side of the defined structure space, the mirror reflection material is formed by connecting multiple plane mirrors in a seamless mode, and a 0.77-degree clamping angle is formed between the mirror reflection material and the plumb line. The upper end of the optical reflection structure is connected with the other light diffusion film, and the lower end of the optical reflection structure is located at the lower end of a tested model placing platform in height. Through the mechanism that the defined mirror surface structure reflects the top even light-emitting face infinitely, the standard overcast sky brightness distribution condition issued by the international commission on illumination y is accurately simulated. The artificial device has the advantages of being small in size, ingenuous in structure, accurate in brightness distribution and the like and can be used for simulating the brightness distribution condition of overcast sky.
Description
Technical field
The utility model relates to a kind of Prosthesis who simulates sky brightness, particularly relate to a kind of overcast sky brightness analogue means, specifically a kind of mirrored cabinet formula overcast sky Luminance Distribution analogue means, this device is for the simulation test of architectural lighting, in limited space-artifact, simulate the sky brightness distribution situation at full cloudy day, belonged to the building optics field in Building Technology Science.
Background technology
Architectural lighting experiment porch is architectural lighting research and the basis of designing.Architectural lighting is the most important factor of constructing architecture luminous environment: on the one hand, efficiently utilize natural daylight can save architectural lighting energy consumption, China builds in total energy consumption approximately 20%～40% under normal circumstances for artificial light, and therefore high-efficiency lighting has a high potential for the reduction of lighting energy consumption; On the other hand, natural lighting can provide more comfortable, healthy luminous environment, be conducive to human body physiological health, be in a cheerful frame of mind and sight protectio.Investigate according to present status in China: under the operating mode of outdoor natural light abundance, still have a large amount of buildings to use electric light source to throw light on, the architectural lighting design of tracing it to its cause not good enough be can hardly absolve oneself of the blame, China's systematic daylighting design theory level is low, application technology is immature is deeper reason, and the solution of these problems all depends on basic architectural lighting research test platform.Architectural lighting research is mainly take the full cloudy day as test environment basis, and therefore a set of experimental provision that can accurately simulate full cloudy day day condition is the basis of carrying out architectural lighting research.Artificial sky's design need solve the requirement of two aspects:
(1) how in " little space ", to simulate " large sky "
Artificial sky requires to simulate the Luminance Distribution of sky in limited space, traditional the vault of heaven formula artificial sky simple structure, but body is huge under normal circumstances, and the test useful space is less, be only applicable to small scale test model, such artificial sky's application is subject to certain restrictions.
(2) how exactly the sky brightness of mock standard distributes
A full cloudy day day condition is the most frequently used sky brightness model arriving of architectural lighting research, be the background condition that architectural lighting coefficient is measured, and luminous environment in artificial sky distribute how accurately to meet the key technology that the complete cloudy Luminance Distribution Mathematical Modeling of CIE standard is artificial sky.Due to the restriction of luminous environment construction mode, traditional dome-shaped artificial sky is difficult to accurately realize the sky brightness distribution of CIE standard, easily causes coefficient of lighting measurement result misalignment.
Utility model content
The purpose of this utility model is to provide a kind of Prosthesis who simulates the full cloudy day, for architectural lighting research and test provide accurately easy-to-use platform, the full cloudy day simulation that meets CIE standard is provided in limited space, makes the measurement true and accurate of lighting for buildings coefficient.
The utility model is by creationary structural design, use optical mirror plane image-forming principle, utilize electric source material, in little space, realize the simulation at full cloudy day of CIE standard, effective efficiency space is large, and has guaranteed the accuracy of " sky " Luminance Distribution in device from the formation mechanism of luminous environment.The novel artificial sky of accurately accurately simulating full cloudy day day condition in little space of simulation.The novel artificial sky that the utility model proposes can become the basic platform of architectural lighting experiment.
The purpose of this utility model is achieved by the following technical solution.
Simulate the Prosthesis at full cloudy day, comprise optical reflection structure, electric light source, light-diffusing film and frame structure; Frame structure is for enclosing structure, and the horizontal cross-section that encloses structure is regular polygon or circle; Frame structure and light-diffusing film and ground form enclosure space; Frame structure top of space is provided with electric light source, and electric light source lower end is provided with light-diffusing film; Optical reflection structure is to be arranged on the specular reflective material that encloses structure space inner side, and specular reflective material is made up of the seamless link of multi-disc level crossing, and specular reflective material becomes 0.77 ° of angle with plumb line; Optical reflection structure upper end connects light-diffusing film, and lower end is positioned at tested model placement platform height lower end; The requirement for height of optical reflection structure is not less than the half that encloses structural plan width.
Preferably, described electric light source is arranged on the 300mm place, upper end of light-diffusing film.Described electric light source is linear light source, spot light or planar light source; The preferred fluorescent tube of linear light source, EFFL, LED line lamp; The preferred compact fluorescent lamp of spot light or point-like LED lamp; The preferred LED LGP of planar light source.
Described optical reflection structure upper along concordant, is connected with diffuse transmission film.
The material of described level crossing is glass mirror or post-metal plate.
The height of described tested model placement platform be 1.2 ?1.5 meters.
The utlity model has following advantage and beneficial effect:
(1) the utility model has been realized infinitely-great skylight environmental simulation in the confined space, builds full cloudy day day condition by the principle of the unlimited reflection of minute surface.Compare traditional the vault of heaven formula artificial sky more advanced, be applicable to the more BUILDINGS MODELS of vast scale, can be widely used in research and the test of architectural lighting.
(2) due to by the uniform luminance luminous flat at unlimited reflection unit top, therefore this device luminous environment distributes and accurately meets the Mathematical Modeling of CIE standard overcast sky brightness, and the formula artificial sky luminous environment brightness of traditional the vault of heaven relies on light fixture projection to be difficult to accurate control.
(3) complete cloudy analogue means is architectural lighting research master tool and test platform, this utility model has been set up the architectural lighting research accurately of structure simple effects and test environment, is conducive to daylighting analysis and Design of Lighting Energy Saving in Building.
Accompanying drawing explanation
Fig. 1 is the Prosthesis's at full cloudy day of simulation longitudinal profile schematic diagram;
Fig. 2 is the Prosthesis's at full cloudy day of simulation explosive view;
Fig. 3 is the complete cloudy Luminance Distribution value comparison diagram of luminous environment Luminance Distribution value and CIE standard.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described, it should be noted that, the specific embodiment is the restriction to the claimed scope of the utility model not.
As shown in Figure 1, 2, a kind of Prosthesis who simulates the full cloudy day, comprises optical reflection structure 1, electric light source 2, light-diffusing film 3 and frame structure 4; Frame structure 4 is for enclosing structure, and the horizontal cross-section that encloses structure is square; Frame structure 4 forms enclosure space with light-diffusing film 3 and ground; Frame structure 4 top of space are provided with electric light source 2, and electric light source 2 lower ends are provided with light-diffusing film 3; Optical reflection structure 1 is for being arranged on the specular reflective material that encloses structure space inner side, and specular reflective material is made up of the seamless link of multi-disc level crossing, and specular reflective material becomes 0.77 ° of angle with plumb line; Optical reflection structure 1 upper end connects light-diffusing film 3, and lower end is positioned at tested model placement platform height lower end; The requirement for height of optical reflection structure 1 is not less than the half that encloses structural plan width.
The material of level crossing, is not limited to glass mirror, can be post-metal plate etc.The reflectivity R of level crossing
mirrorbe preferably 0.80, between level crossing, closely splicing, does not stay gap, and between level crossing, accurately dock at angle of cut place, does not have non-mirror reflection material to expose.
Enclose the actual size that structure 4 plane width depend on tested model, the building scale model that is not more than 1:50 take engineer's scale is as example, and the plane width that encloses structure requires to be not less than 2.5 meters; The height of tested model placement platform be generally 1.2 ?1.5 meters; Optical reflection structure 1 lower be not along height (apart from the position height on ground) higher than tested model placement platform height, and optical reflection structure 1 upper along concordant, is connected with diffuse transmission film 3.
The uniform diffuse transmission membrane material arranging between device top electric light source and optical reflection structure 1 is preferably half transmitting material, this membrane material need closely hide in enclose with space on edge, be connected with edge on level crossing.
In the utility model, the uniformly light-emitting plane at enclosed space top forms the luminous environment in this enclosed space through the multiple reflections of specular material that encloses inner structural wall, as the reflectivity R of reflecting material
mirror=0.80 o'clock, and the angle a of this plane reflection material and plumb line is 0.77 °, by optical analysis and measurement, can learn that the luminous environment enclosing in structure in this situation is distributed as shown in Fig. 3.This situation can be similar to be thought and meets the complete cloudy Luminance Distribution mathematical formulae of CIE standard, can be used as the research environment of architectural lighting.
As shown in Figure 3, enclose that interior luminous environment Luminance Distribution is approximate meets the complete cloudy Luminance Distribution mathematical formulae of CIE standard, both:
In formula: L
z---zenith luminance;
L
θ---measuring point tangent plane and ground are the sky brightness at θ angle place;
θ---the angle on measuring point tangent plane and ground;
The utility model is due to by the uniform luminance luminous flat at unlimited reflection unit top, therefore this device luminous environment distributes and accurately meets the Mathematical Modeling of CIE standard overcast sky brightness, and the formula artificial sky luminous environment brightness of traditional the vault of heaven relies on light fixture projection to be difficult to accurate control.The utility model has been realized infinitely-great skylight environmental simulation in the confined space, builds full cloudy day day condition by the principle of the unlimited reflection of minute surface.Compare traditional the vault of heaven formula artificial sky more advanced, be applicable to the more BUILDINGS MODELS of vast scale, can be widely used in research and the test of architectural lighting.Master tool and test platform that the complete cloudy analogue means of the utility model is architectural lighting research, this utility model has been set up the architectural lighting research accurately of structure simple effects and test environment, is conducive to daylighting analysis and Design of Lighting Energy Saving in Building.
Claims (6)
1. the Prosthesis at full cloudy day of simulation, is characterized in that comprising optical reflection structure, electric light source, light-diffusing film and frame structure; Frame structure is for enclosing structure, and the horizontal cross-section that encloses structure is regular polygon or circle; Frame structure and light-diffusing film and ground form enclosure space; Frame structure top of space is provided with electric light source, and electric light source lower end is provided with light-diffusing film; Optical reflection structure is to be arranged on the specular reflective material that encloses structure space inner side, and specular reflective material is made up of the seamless link of multi-disc level crossing, and specular reflective material becomes 0.77 ° of angle with plumb line; Optical reflection structure upper end connects light-diffusing film, and lower end is positioned at tested model placement platform height lower end; The requirement for height of optical reflection structure is not less than the half that encloses structural plan width.
2. the Prosthesis at full cloudy day of simulation according to claim 1, is characterized in that, described electric light source is arranged on the 300mm place, upper end of light-diffusing film.
3. according to the Prosthesis at full cloudy day of simulation described in claim 1 or 2, it is characterized in that, described electric light source is linear light source, spot light or planar light source; The preferred fluorescent tube of linear light source, EFFL, LED line lamp; The preferred compact fluorescent lamp of spot light or point-like LED lamp; The preferred LED LGP of planar light source.
4. the Prosthesis at full cloudy day of simulation according to claim 1, is characterized in that, described optical reflection structure upper along concordant is connected with diffuse transmission film.
5. the Prosthesis who simulates according to claim 1 the full cloudy day, is characterized in that, the material of described level crossing is glass mirror or post-metal plate.
6. the Prosthesis at full cloudy day of simulation according to claim 1, is characterized in that, the height of described tested model placement platform be 1.2 ?1.5 meters.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420005195.4U CN203686776U (en) | 2014-01-03 | 2014-01-03 | Artificial device simulating overcast sky |
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| CN201420005195.4U CN203686776U (en) | 2014-01-03 | 2014-01-03 | Artificial device simulating overcast sky |
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| CN203686776U true CN203686776U (en) | 2014-07-02 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759959A (en) * | 2014-01-03 | 2014-04-30 | 华南理工大学 | Mirror-box-type all-cloudy day simulation device |
| CN108052762A (en) * | 2017-12-26 | 2018-05-18 | 哈尔滨工业大学 | A kind of severe cold area building natural lighting performance simulation method based on local light climate |
| CN108692235A (en) * | 2017-03-29 | 2018-10-23 | 松下知识产权经营株式会社 | Luminaire |
-
2014
- 2014-01-03 CN CN201420005195.4U patent/CN203686776U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759959A (en) * | 2014-01-03 | 2014-04-30 | 华南理工大学 | Mirror-box-type all-cloudy day simulation device |
| CN108692235A (en) * | 2017-03-29 | 2018-10-23 | 松下知识产权经营株式会社 | Luminaire |
| CN108052762A (en) * | 2017-12-26 | 2018-05-18 | 哈尔滨工业大学 | A kind of severe cold area building natural lighting performance simulation method based on local light climate |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20140702 Termination date: 20180103 |