CN101174027A - Natural light collector, illumination system and light source of electronic system - Google Patents

Natural light collector, illumination system and light source of electronic system Download PDF

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Publication number
CN101174027A
CN101174027A CNA2007101758492A CN200710175849A CN101174027A CN 101174027 A CN101174027 A CN 101174027A CN A2007101758492 A CNA2007101758492 A CN A2007101758492A CN 200710175849 A CN200710175849 A CN 200710175849A CN 101174027 A CN101174027 A CN 101174027A
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optical element
light
optical
natural light
natural
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须清
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Beijing Paragon Technology Co Ltd
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Beijing Paragon Technology Co Ltd
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Abstract

The invention relates to a natural light collector, an illuminating system and an electronic system light source device. Natural light is taken as a light source, a plurality of optical components are adopted to collect and gather the natural light and then transfer through the light guide, the illuminating system which is very environment-friendly is provided, thus the invention can be widely applied to the daily building illumination and electronic systems such as a liquid crystal display and projecting apparatus.

Description

Natural light collector, illuminator and light source of electronic system
Technical field
The present invention relates to directly utilize illuminator and the light source of electronic system of natural light as light source, particularly adopt optical element to carry out custom-designed natural light collector, with natural light through converging, collect, two-phonon process such as transmission obtains the light source that needs, as be used for the space of the needs illumination that natural light can not shine directly into, or need to be used to the electronic equipment of back lighting, comprise liquid crystal display, projector etc.Belong to illumination optical technical field and light sources technical field.
Background technology
Natural light is the energy that nature cleans most, and people are for the understanding of natural light and utilize also in constantly exploring.Photovoltaic cell or solar cell that present people make earnest efforts studying are that luminous energy is converted into electrical power storage, and what mainly utilize is the thermal infrared spectrum district of natural light, and the heat energy in the spectrum is transformed, and does not transform for visible spectrum.The electric energy that utilize to store then removes to drive electroluminescence equipment and illumination is provided or provides electric energy for other equipment.Merely from natural light-electric energy-the luminous lighting process, this demand of throwing light on is by directly utilizing the visible light of natural light, but utilized the thermal infrared light of natural light, obviously efficient is not high.
And in the real life, even on solar radiation very abundant daytime, most of space as human work and life but is in the room or office inside, owing to there is not the direct irradiation of natural light, often need to use various electric lights to throw light on, particularly for spaces such as airtight factory, storehouses, because airtight everywhere, enter without any natural light, need use electric lighting all day.This energy resource consumption is huge.But natural light can both be experienced in owned building exterior wall and roof, but do not make full use of, if can directly introduce house interior to these natural lights through certain technological means, the luminaire of alternative electric energy driving will provide best solution for energy savings reduces to pollute fully.
On the other hand, display system at a lot of electronic equipments also needs light source, as LCD, its back light is the maximum parts of LCD power consumption, if natural light directly can be introduced electronic equipment as illuminating source, to greatly reduce the power consumption of LCD, thereby improve the battery service time of electronic equipment such as equipment such as notebook computer, portable terminal.
At number of patent application is 200510017052.0 to be entitled as to have disclosed in the Chinese patent open file of " two-dimensional non-imaging type sunlight absorb and transmit luminaire " to adopt the special two-dimentional curved surface of COMPUTER CALCULATION to collect sunshine, solves the problem of following the tracks of the sunshine change.
In the patent No. is that ZL 93227562.1 is entitled as to have disclosed in the Chinese patent open file of " photoconduction transmission illumination device " and adopts convex lens and infrared fileter that natural light is converged to a kind of method in the optical fiber.
In the patent No. is that ZL 200420112108.1 is entitled as in the Chinese patent open file of " optical fiber light harvesting and disperse lighting device " and has disclosed the method that adopts the Treatment Design natural lighting of convex lens optically focused, fiber optic conduction light, concavees lens dispersed light.
In the patent No. is that ZL 200520073663.2 is entitled as and has disclosed the method that adopts the Treatment Design natural lighting of convex lens, concave mirror optically focused, fiber optic conduction light, glass bead dispersed light in the Chinese patent open file of " energy-saving indoor lighting lighting device ".
In the patent No. is that ZL 200420003297.9 is entitled as and has disclosed the method that adopts the Treatment Design natural lighting of convex lens, fiber optic conduction light in the Chinese patent open file of " sunlight collecting lighting device ".
In the patent No. is that ZL 97247820.5 is entitled as and has disclosed the method that adopts the Treatment Design natural lighting of light reflecting curved surface, fiber optic conduction light in the Chinese patent open file of " solar fibre-optical lighting device ".
In the patent No. is that ZL200520077493.5 is entitled as and discloses the method that adopts concavees lens to carry out the natural light collection and illumination is provided in the patent of " natural lighting bright lamp ", and the concavees lens that adopted do not have the reflected light function, so its light path is problematic.
In the patent No. is that ZL200620024986.7 is entitled as to disclose in the patent of " the collecting and distributing device of a kind of sunlight " and adopts convex lens, parabolic reflector to carry out the natural light collection and the method for illumination is provided, the convex lens that adopted are focusing functions, through can not effectively converging on another parabola after the parabolic reflector reflection, collection effect is poor.
In the patent No. is that ZL200620024361.0 is entitled as and discloses the method that adopts convex lens, concavees lens to carry out the natural light collection and illumination is provided in the patent of " the collecting and distributing device of sunlight ", convex lens that adopted and concavees lens are to be made of a plurality of internal and external cambered surfaces, must guarantee that simultaneously each internal and external cambered surface focus overlaps, processing difficulties, and be not to consider near directional light with natural light itself, collecting efficiency is not high.
In the patent No. is that ZL89217926.0 is entitled as the method that discloses in the patent of " sunlight reflected lighting device " from the motion tracking sun.
In the patent No. is that ZL200620078509.9 is entitled as to disclose in the patent of " solar illuminating system " and adopts the natural lighting method of solar cooker, caustic surface, optical fiber, does not make optical energy loss owing to consider high heat that optically focused causes and the non-parallel light that transmits in optical fiber.
At number of patent application is that 200410010807.X is entitled as and discloses the natural lighting method that adopts condenser, optical fiber in the patented claim of " solar energy network natural lighting heating arrangement system ", does not consider that equally high heat that optically focused causes and the non-parallel light that transmits in optical fiber make optical energy loss.
In the patent No. is that ZL97247820.5 is entitled as to disclose in the patent of " solar fibre-optical lighting device " and adopts the natural lighting method of optically focused curved surface, optical fiber, does not make optical energy loss owing to consider high heat that optically focused causes and the non-parallel light that transmits in optical fiber.
In the patent No. is that ZL200420003297.9 is entitled as to disclose in the patent of " sunlight collecting lighting device " and adopts the natural lighting method of convex lens, optical fiber, does not make optical energy loss owing to consider high heat that optically focused causes and the non-parallel light that transmits in optical fiber.
Above disclosed method does not address the problem: it is overheated how to prevent when converging natural light? how effectively to assemble sunshine? how to improve the efficient of light conduction? how will be used for electronic equipment after the natural light collection?
Summary of the invention
The present invention proposes a kind of natural light collector, illuminator and light source of electronic system of innovation, wish and natural light can be introduced directly in the buildings, when externally natural light has certain illuminance, provide direct illumination not need to consume any other energy for indoor.Simultaneously natural light is introduced electronic equipment, the power consumption of the illuminating source of electronic equipment needs with very big reduction electronic equipment is provided.And prevent to produce when sunshine from converging the very problem of high heat, reduce the photoconduction transmission loss simultaneously to improve light transmissioning efficiency.
For achieving the above object, the technical solution adopted for the present invention to solve the technical problems is:
With the natural light collector of natural light as light source, be with natural light through optics converge, collimation, transmission course become the light that can control irradiation area.
A kind of scheme of natural light collector comprises:
First optical element that adopts the reflecting curved surface reflection to converge natural light; Typical reflecting curved surface is the parabolic reflector curved surface, covers total reflection film on the surface of curved surface, it is desirable to use the metal total reflection film or the glass-reflected material membrane of 3M company, as 3M TMScotchlite TM" vision is beautiful " reflectorized material, the reflection efficiency in limit of visible spectrum is higher; This reflecting curved surface is done greatly more, and the natural light that converges is many more; Natural light is the irradiates light from the sun or the moon, because the Sun and the Moon is far apart from the earth, can regard the natural light that shines reflecting curved surface as directional light, according to optical principle, parabolic surface has the function that the parallel rays of irradiation is converged to its focus place, also often adopts in some solar cell design.
Second optical element that adopts reflecting curved surface to collimate the light that first optical element converged; Typical also is to adopt the parabolic surface with total reflection material.
Catoptrical the 3rd optical element of transmission second optical element.
In the natural light collector of this scheme, the optical surface of described first optical element and second optical element is staggered relatively, and the 3rd optical element is connected with second optical element optical;
Described first optical element overlaps with the optical axial of second optical element, the optical focus location overlap, and the optical surface of first optical element is more much bigger than the optical surface of second optical element; Design like this can be converged natural light then by first optical element and be changed the directional light of concentrating into by second optical element.Consequently natural light is through the processing of the first optical reflection curved surface and the second optical reflection curved surface, and it is the very high parallel rays of a beam brightness that natural light is converged.
Described the 3rd optical element adopts optical fiber or optical cable.Because the performance of optical fiber or optical cable transmission light is very high, can greatly reduce the optical loss in the transmission, and change the directional light direct projection of concentrating into by second optical element and go into optical fiber or optical cable, transmit light in the total reflection mode in the time of can guaranteeing in optical fiber or optical cable, to transmit, improve the transfer efficiency of light.
The another kind of scheme of natural light collector comprises:
Employing lens converge first optical element of natural light; Be typically convex lens, according to optical principle, parallel rays shines on the convex lens, and light will converge at its focus place, and then penetrate as pointolite from focus.
Second optical element that adopts the light that collimated first optical element converged; Be typically convex lens, according to optical principle, the irradiate light that penetrates from concave lens focus will form parallel rays to convex lens, be also referred to as collimated ray.
The 3rd optical element of transmission second optical element institute transmitted light.
In the natural light collector of this scheme, described first optical element and second optical element are placed side by side, and the 3rd optical element is connected with second optical element optical;
Described first optical element overlaps with the optical axial of second optical element, the optical focus location overlap, and the optical surface of first optical element is more much bigger than the optical surface of second optical element; Consequently natural light is through the processing of first optical lens and second optical lens, and it is the very high parallel rays of a beam brightness that natural light is converged.
Described the 3rd optical element adopts optical fiber or optical cable.
The third scheme of natural light collector comprises:
First optical element that adopts the reflecting curved surface reflection to converge natural light; Typical reflecting curved surface is the parabolic reflector curved surface, covers total reflection film on the surface of curved surface, it is desirable to use the metal total reflection film or the glass-reflected material membrane of 3M company, as 3M TMScotchlite TM" vision is beautiful " reflectorized material, the reflection efficiency in limit of visible spectrum is higher; This reflecting curved surface is done greatly more, and the natural light that converges is many more; Natural light is the irradiates light from the sun or the moon, because the Sun and the Moon is far apart from the earth, can regard the natural light that shines reflecting curved surface as directional light, according to optical principle, parabolic surface has the function that the parallel rays of irradiation is converged to its focus place, also often adopts in some solar cell design.
Second optical element that adopts the light that collimated first optical element converged; Be typically convex lens, according to optical principle, the irradiate light that penetrates from concave lens focus will form parallel rays to convex lens, be also referred to as collimated ray.
The 3rd optical element of transmission second optical element institute transmitted light.
In the natural light collector of this scheme, described first optical element and second optical element are placed side by side, and the 3rd optical element is connected with second optical element optical;
Described first optical element overlaps with the optical axial of second optical element, the optical focus location overlap, and the optical surface of first optical element is more much bigger than the optical surface of second optical element; Consequently natural light is through the processing of the first optical reflection curved surface and second optical lens, and it is the very high parallel rays of a beam brightness that natural light is converged.
Described the 3rd optical element adopts optical fiber or optical cable.
A kind of illuminator that adopts natural light comprises:
The infrared light that filters out Infrared filters the 4th optical element; Be typically solar film, a kind of blooming that often uses on the window of automobile decoration, house decoraton can make the infrared light with thermal behavior in the natural light be reflected by solar film, and make the blooming of most visible transmission.Through the processing of this optical element, can filter the infrared spectrum in the natural light, reduce the thermal effect that produces when natural light converges on light collector.This kind optical heat-insulating film is also arranged in the product of 3M company, and as the brilliant sharp film (3M Cystalline) of 3M, effect of heat insulation is better, can filter the light ray energy of the thermal infrared spectrum more than 90%.
Light source: the natural light collector of one of above-mentioned three kinds of schemes is collected through above-mentioned infrared light and is filtered the natural light that the 4th optical element filters; Through the natural light after the infrared light filtration optics element filters mainly is visible light, the technical scheme of natural light collector, front have been enumerated three kinds, owing to do not adopt the device of any energy conversion, the optical processing of having only light, the luminous ray energy loss of natural light is less.Become a branch of parallel light source that luminous energy is relatively concentrated after the process natural light collector converges and handles, be fit to by optical fiber or optical cable transmission.
The also selectable servomechanism of the natural light irradiation of described natural light collector being aimed at the sun that comprises; The natural light source mainly is a sunshine, the sunshine on daytime is to rotate relative to the earth with the circumsolar revolution of the earth along with the autobiography of the earth, for the collection efficiency that makes natural light collector the highest, need make the natural light of injecting natural light collector accept the irradiation that face is aimed at the sun all the time, therefore need increase by one cover servomechanism to follow and shine upon the light variation.The servomechanism of following sunray often adopts in the large solar photovoltaic conversion equipment, and its technical scheme is quoted as open knowledge and technology of the present invention.
The collimated ray that above-mentioned light source is collected changes the 5th optical element that an illumination or line illumination or face are thrown light on into.In actual the use, people have different requirements for light source, need pointolite sometimes, promptly outwards launch light from a point, as bulb, can adopt convex lens to converge for collimated ray, form the pointolite that converges at the focus place of convex lens.Also some need be applied to line source, can adopt concavees lens that collimated ray is expanded into line source.Can adopt diffuser when the demand side light source is the face illuminating source with the collimated ray diffusion, or with the optical system that a plurality of convex lens form a branch of parallel rays that converges is expanded into the parallel surface light source that a plane is penetrated.
A kind of light source of electronic system that adopts natural light comprises:
The infrared light that filters out Infrared filters the 4th optical element; Be typically solar film, a kind of blooming that often uses on the window of automobile decoration, house decoraton can make the infrared light with thermal behavior in the natural light be reflected by solar film, and make the blooming of most visible transmission.Through the processing of this optical element, can filter the infrared spectrum in the natural light, reduce the thermal effect that produces when natural light converges on light collector.This kind optical heat-insulating film is also arranged in the product of 3M company, and as the brilliant sharp film (3M Cystalline) of 3M, effect of heat insulation is better, can filter the light ray energy of the thermal infrared spectrum more than 90%.
Light source: the natural light collector of one of above-mentioned three kinds of schemes is collected the natural light that filters the optics element filters through above-mentioned infrared light;
The 5th optical element of the collimated ray collected of the above-mentioned light source of transmission can adopt optical fiber or optical cable;
The also selectable servomechanism of the natural light irradiation of described natural light collector being aimed at the sun that comprises;
Described the 5th optical element is incorporated into light in the electronic system, as the light source of electronic system, can adopt optical fiber or optical cable
Light source of electronic system comprises and also comprises original electric driven for emitting lights light source in the light source of electronic system that adopts natural light collector, and when natural light was sufficient, the light of collecting with natural light collector was main light source; When natural light is dim, be main light source with original electric driven for emitting lights light source.
The invention has the beneficial effects as follows: because the natural light collector, illuminator and the light source of electronic system that are adopted are to adopt natural light light guide approach to be sent to by optical processing to need the indoor of illumination, effectively utilize the visible light of natural lights such as sunshine, being implemented under the situation that natural light exists directly adopts natural light to throw light on, be a kind of energy utilization patterns of cleaning, do not need to consume the back light that other any energy can provide normal lighting, electronic system, efficient and without any environmental pollution.Also provide a kind of highly effective solution simultaneously for saving energy for the very responsive mobile electronic device of battery power.And the present invention is used for actual illumination with natural light collector or during as the electronic equipment light source, the infrared light that light at first filters out Infrared filters optical element, infra-red heat energy in the filtering spectrum prevents that each parts of natural light collector are overheated effectively.Simultaneously every kind of natural light collector scheme all with the natural light collimation for carrying out the photoconduction transmission being sent to optical fiber behind the directional light, improved transfer efficiency greatly, reduce light loss; And effectively integrate by original light-source system with electronic system, guarantee to utilize energy-conservation, night on electronic system daytime electric energy still spendable comprehensive can effect system.
Description of drawings:
Fig. 1 adopts the convex lens combined optical element to realize a kind of system chart of realizing of natural light collector.
Fig. 2 adopts light reflecting curved surface and convex lens etc. to realize the system chart that the another kind of natural light collector is realized.
Fig. 3 adopts the combination of light reflecting curved surface to realize the system chart that the another kind of natural light collector is realized.
Fig. 4 adopts optical element the Ray Of Light that converges to be become the realization synoptic diagram of line source, pointolite or parallel surface light source.
Fig. 5 adopts natural light collector to realize the realization principle schematic of illumination.
Fig. 6 is the natural light collector principle schematic that increases the sunshine servomechanism.
Fig. 7 is the realization principle schematic that adopts natural light collector to provide light source and the inner original light source of electronic system to integrate.
Fig. 8 is another realization principle schematic that adopts natural light collector to provide light source and the inner original light source of electronic system to integrate.
Embodiment:
Below in conjunction with accompanying drawing structural principle of the present invention and principle of work are elaborated.
Fig. 1 adopts the convex lens combined optical element to realize a kind of system chart of realizing of natural light collector, natural light 102 shines on the convex lens 101, because natural lights such as sunshine are far apart from the earth, can regard sunshine as parallel rays, according to optical principle, the focus 106 (single times of focal position place) that converges to convex lens 101 after parallel rays reflects through convex lens 101 is located, and then use an optical surface to receive the light that converges much smaller than another convex lens 103 of convex lens 101, in order to make light become the directional light 107 that converges through convex lens 103, the focus of convex lens 103 need be overlapped with the concave lens focus of convex lens 101, optical axial overlaps, as 106 places of the focus among the figure.To import a branch of optical fiber or the optical cable 104 from the directional light 107 that convex lens 103 penetrate then and transmit, because incident ray is a parallel rays, direct projection is gone in the optical fiber or optical cable 104 of photoconduction transmission, can guarantee to realize on the tube wall in optical fiber or optical cable 104 complete total reflection, improve transfer efficiency, the light 105 from optical fiber or optical cable 104 ejaculations is exactly through converging a branch of high-luminance light that collection and transmission obtain simultaneously.The focal length of convex lens 103, optical surface size select to satisfy following condition with focal length, the optical surface size of convex lens 101:
Convex lens 103 and convex lens 101 all adopt bull's-eye;
Convex lens 103 and convex lens 101 optical axials overlap;
The focal length of setting convex lens 101 is f1, and the optical surface size is come mark d1 with the diameter of convex lens;
The focal length of setting convex lens 103 is f2, and the optical surface size is come mark d2 with the diameter of convex lens;
Satisfying relational expression is:
D1: f1=d2: f2, or
d1*f2=d2*f1
And d1>d2.
In actual the realization, d1 is big more, and the shadow surface that receives natural light is big more, and the sunshine that converges is also just many more, and price can be high more simultaneously.The size of d2 is relevant with effective transmission cross section of optical fiber that carries out the photoconduction transmission or optical cable 104.Guarantee during selection that 103 refractions are penetrated through convex lens light all injects in the photocon in optical fiber or the optical cable 104.Because optical fiber has flexible, photoconduction transfer efficiency height, a kind of implementation is that the fiber optic cables that adopt multifiber to form transmit, and can make optical fiber cable angle and shape wiring on demand in transmission course, helps the transmission of light.
Fig. 2 adopts light reflecting curved surface and convex lens etc. to realize the system chart that the another kind of natural light collector is realized.In this is realized, adopt 201 collections of light reflecting curved surface and converge natural light 202, adopt parabolic surface usually.Light reflecting curved surface 201 is at the parabolic surface inside surface covering visible light total reflection film of hard material such as metallic iron formation or inlays the total reflection glass material and make, can adopt 3M TMScotchlite TM" vision is beautiful " reflectorized material.According to optical principle, the total reflection parabolic surface has an optical focus 206, and the parallel rays that shines light reflecting curved surface 201 will converge to optical focus 206.And then use convex lens 203 to receive the light that converges, in order to make light become the directional light 207 that converges through convex lens 203, the focus of convex lens 203 need be overlapped with the optical focus of light reflecting curved surface 201, optical axial overlaps, as 206 places of the focus among the figure.To import a branch of optical fiber or the optical cable 204 from the directional light 207 that convex lens 203 penetrate then and transmit, because incident ray is a parallel rays, direct projection is gone in the optical fiber or optical cable 204 of photoconduction transmission, can guarantee to realize on the tube wall in optical fiber or optical cable 204 complete total reflection, improve transfer efficiency, the light 205 from optical fiber or optical cable 204 ejaculations is exactly through converging a branch of high-luminance light that collection and transmission obtain simultaneously.The focal length of convex lens 203, optical surface size select to satisfy following condition with optical focus, the optical surface size of light reflecting curved surface 201:
Light reflecting curved surface 201 adopts circular total reflection parabolic surface;
Convex lens 203 adopt bull's-eye;
Convex lens 203 optical axials and light reflecting curved surface 201 optical axials overlap;
Setting light reflecting curved surface 201 maximum open identity distances is f1 from the distance of optical focus, and the optical surface size is come mark d1 with the diameter of maximum open;
The focal length of setting convex lens 203 is f2, and the optical surface size is come mark d2 with the diameter of convex lens;
Satisfying relational expression is:
D1: f1=d2: f2, or
d1*f2=d2*f1
And d1>d2.
In actual the realization, d1 is big more, and the shadow surface that receives natural light is big more, and the sunshine that converges is also just many more, and price can be high more simultaneously.The size of d2 is relevant with effective transmission cross section of optical fiber that carries out the photoconduction transmission or optical cable 204.Guarantee during selection that 203 refractions are penetrated through convex lens light all injects in the photocon in optical fiber or the optical cable 204.Because optical fiber has flexible, photoconduction transfer efficiency height, a kind of implementation is that the fiber optic cables that adopt multifiber to form transmit, and can make optical fiber cable angle and shape wiring on demand in transmission course, helps the transmission of light.
Fig. 3 adopts the combination of light reflecting curved surface to realize the system chart that the another kind of natural light collector is realized.In this is realized, adopt 301 collections of light reflecting curved surface and converge natural light 302, adopt parabolic surface usually.Light reflecting curved surface 301 is at the parabolic surface inside surface covering visible light total reflection film of hard material such as metallic iron formation or inlays the total reflection glass material and make, can adopt 3M TMScotchlite TM" vision is beautiful " reflectorized material.According to optical principle, the total reflection parabolic surface has an optical focus 306, and the parallel rays that shines light reflecting curved surface 301 will converge to optical focus 306.And then use another light reflecting curved surface 303 to receive the light that converges, light reflecting curved surface 303 is at the parabolic surface inside surface covering visible light total reflection film of hard material such as metallic iron formation or inlays the total reflection glass material and make, in order to make light become the directional light 307 that converges through 303 reflections of light reflecting curved surface, the optical focus of light reflecting curved surface 303 need be overlapped with the optical focus of light reflecting curved surface 201, optical axial overlaps, as 306 places of the focus among the figure.To import a branch of optical fiber or the optical cable 304 from the directional light 307 that light reflecting curved surface 303 reflects then and transmit, because incident ray is a parallel rays, direct projection is gone in the optical fiber or optical cable 304 of photoconduction transmission, can guarantee to realize on the tube wall in optical fiber or optical cable 304 complete total reflection, improve transfer efficiency, the light 305 from optical fiber or optical cable 304 ejaculations is exactly through converging a branch of high-luminance light that collection and transmission obtain simultaneously.The optical focus of light reflecting curved surface 303, optical surface size select to satisfy following condition with optical focus, the optical surface size of light reflecting curved surface 301:
Light reflecting curved surface 301 adopts circular total reflection parabolic surface;
Light reflecting curved surface 303 adopts circular total reflection parabolic surface;
Light reflecting curved surface 303 optical axials and light reflecting curved surface 301 optical axials overlap;
Setting light reflecting curved surface 301 maximum open identity distances is f1 from the distance of optical focus, and the optical surface size is come mark d1 with the diameter of maximum open;
Setting light reflecting curved surface 303 maximum open identity distances is f2 from the distance of optical focus, and the optical surface size is come mark d2 with the diameter of maximum open;
Satisfying relational expression is:
D1: f1=d2: f2, or
d1*f2=d2*f1
And d1>d2.
In actual the realization, d1 is big more, and the shadow surface that receives natural light is big more, and the sunshine that converges is also just many more, and price can be high more simultaneously.The size of d2 is relevant with effective transmission cross section of optical fiber that carries out the photoconduction transmission or optical cable 304.Guarantee during selection that 303 reflections are penetrated through the light reflecting curved surface light all injects in the photocon in optical fiber or the optical cable 304.Because optical fiber has flexible, photoconduction transfer efficiency height, a kind of implementation is that the fiber optic cables that adopt multifiber to form transmit, and can make optical fiber cable angle and shape wiring on demand in transmission course, helps the transmission of light.
Fig. 4 adopts optical element the Ray Of Light that converges to be become the realization synoptic diagram of line source, pointolite or parallel surface light source.In Fig. 4 (A), inject concavees lens 402 from the light 401 that converges of natural light collector, according to optical principle, the light that reflects by concavees lens 402 outwards scatters out line source of formation or area source.In Fig. 4 (B), inject convex lens 404 from the light 401 that converges of natural light collector, according to optical principle, the optical focus 405 that the light that reflects by convex lens 404 converges to convex lens 404 forms pointolites.In Fig. 4 (C), the light 401 that converges from natural light collector is injected convex lens 406, pass the light of convex lens 406 and inject second convex lens 407 again, and make convex lens 406 overlap with the optical focus of convex lens 407 in the position 408 and the focal length of convex lens 406 less than the focal length of convex lens 407, and the optical surface of convex lens 406 satisfies following relation each other less than the optical surface of convex lens 406:
Convex lens 406 and convex lens 407 all adopt bull's-eye;
Convex lens 406 and convex lens 407 optical axials overlap;
The focal length of setting convex lens 406 is f1, and the optical surface size is come mark d1 with the diameter of convex lens;
The focal length of setting convex lens 407 is f2, and the optical surface size is come mark d2 with the diameter of convex lens;
Satisfying relational expression is:
D1: f1=d2: f2, or
d1*f2=d2*f1
And d1<d2.
According to optical principle, as shown as can be seen, the light that 407 refractions are penetrated through convex lens is the light source of the parallel rays of shadow surface expansion.
Fig. 5 adopts natural light collector to realize the realization principle schematic of illumination.The optics example 500 that adopts natural light to throw light on, natural light 501 shines earlier on the infrared light filtration membrane 502, filter out the thermal infrared light that major part has thermal effect through infrared light filtration membrane 502, reduce the temperature variation of back optical element, can adopt the brilliant sharp film (3M Cystalline) of 3M.The light that will filter out infrared spectrum is injected convex lens 503 then, inject convex lens 505 from the light that convex lens 503 reflect, the light that convex lens 505 are reflected is injected in the optical cable 506 of multiple beams of optical fiber 507 formations then, be delivered to after the optical delivery through a segment distance in the concavees lens 508, the light source 509 of ambient lighting is provided by the refraction output light of concavees lens 508.In this example, infrared light filtration membrane 502, convex lens 503, convex lens 505 and optical cable 506 constitute natural light collector, and the part of infrared light filtration membrane 502, convex lens 503, convex lens 505 and optical cable 506 is encapsulated in the structure 504 of a hard material such as metal or duroplasts formation.Convex lens 503 are selected requirement with the optical parametric selection of convex lens 505 with reference to the parameter of Fig. 1 of front.
Fig. 6 is the natural light collector principle schematic that increases the sunshine servomechanism.Such system often uses in large-sized solar battery system, solar heating system etc., is used to guarantee that the sunshine receiving plane always aims at the sun.Adopt natural light collector 602 of the present invention to be connected on the sunshine following control system 603, when the sun 601 rotates an angle with respect to the earth, cause the light receiving surface that sunray can not direct projection natural light collector 602, to rotate identical angle after sunshine following control system 603 detects such angle difference at this moment, make the light receiving surface of sunray direct projection natural light collector 602, realize maximum light receiving efficiency.The light that natural light collector 602 receives transmits through photocon 604.
Because the light source of electronic system is normally provided by the electroluminescence light source of electronic system inside at present, under the natural light sufficiency, use natural light as light source in order to make electronic system, when natural light is not enough, use the internal electrical illuminating source as light source, two kinds of light sources need be integrated by optical mode.Fig. 7 is the realization principle schematic that adopts natural light collector to provide light source and the inner original light source of electronic system to integrate.Realize in the example at this, can introduce electronic system inside through optical fiber or optical cable transmission from the light of above-mentioned natural light collector shines on the reflecting wall 702 that is made of the optical total-reflection face with 45 degree incident angles as the light 701 of natural light light source, through reflection, shine the convex lens 706 that are used for the light mixing with 135 degree emergence angle ejaculations, by the refraction output light 707 of convex lens 706; Simultaneously becoming a branch of collimated ray from the light of electronic system internal electrical illuminating source 705 through the reflection of ATR Optical curved surface 704 shines on the reflecting wall 703 that is made of the optical total-reflection face with 45 degree incident angles, through reflection, shine the convex lens 706 that are used for the light mixing with 135 degree emergence angle ejaculations, by the refraction output light 707 of convex lens 706.Through such optical processing, the light of two kinds of light sources is mixed into the light source of Ray Of Light as electronic system inside.When natural light is sufficient, can close electronic system internal electrical illuminating source 705, still guarantee the work of electronic system, greatly reduced energy resource consumption.When natural light is inadequate, as night, can unlocking electronic internal system electroluminescence light source 705, guarantee that electronic system continues to move by original mode.When ATR Optical curved surface 704 was parabolic surface, the optical focus that common electronic system internal electrical illuminating source 705 is positioned at ATR Optical curved surface 704 was sentenced and is obtained the greatest optical reflecting effect.
The patent No. is that patent publication that 97193360.X is entitled as " polarized illumination system that the LCD projector is used " has disclosed multiple light source is converged method into single light source, this patented claim " is recalled after the announcement ", as known technology, scheme that it is disclosed " two bundle collimated light beams being carried out the article of integration from the space " is carried out two-beam as this paper and is converged to the implementation of a branch of light and quote.Fig. 8 is another realization principle schematic that adopts natural light collector to provide light source and the inner original light source of electronic system to integrate.In the middle of this is realized, adopt the space integral device element described in the cited patent applications bulletin to form a single light source adopting natural light collector to provide light source and the inner original light source of electronic system to integrate.Light from above-mentioned natural light collector can be injected space integral device element 801 as the light 701 of natural light light source through optical fiber or optical cable transmission introducing electronic system inside, the reflection of the light process ATR Optical curved surface 704 of the inner original light source 705 of electronic system simultaneously becomes a branch of collimated ray and injects space integral device element 801, becomes the light source 803 of the collimated light source of mixing as electronic system through right cylindrical Fresnel lens 804 and negative cylindrical lens 802 then.Through such optical processing, the light of two kinds of light sources is mixed into the light source of Ray Of Light as electronic system inside.When natural light is sufficient, can close electronic system internal electrical illuminating source 705, still guarantee the work of electronic system, greatly reduced energy resource consumption.When natural light is inadequate, as night, can unlocking electronic internal system electroluminescence light source 705, guarantee that electronic system continues to move by original mode.When ATR Optical curved surface 704 was parabolic surface, the optical focus that common electronic system internal electrical illuminating source 705 is positioned at ATR Optical curved surface 704 was sentenced and is obtained the greatest optical reflecting effect.

Claims (10)

1. natural light collector comprises:
Employing lens converge first optical element of natural light;
Second optical element that adopts the light that collimated first optical element converged;
The 3rd optical element of transmission second optical element institute transmitted light.
2. natural light collector according to claim 1 is characterized in that
Described first optical element and second optical element are placed side by side, and the 3rd optical element is connected with second optical element optical;
Described first optical element overlaps with the optical axial of second optical element, the optical focus location overlap, and the optical surface of first optical element is more much bigger than the optical surface of second optical element;
Described the 3rd optical element adopts optical fiber or optical cable.
3. natural light collector comprises:
First optical element that adopts the reflecting curved surface reflection to converge natural light;
Second optical element that adopts reflecting curved surface to collimate the light that first optical element converged;
Catoptrical the 3rd optical element of transmission second optical element.
4. natural light collector according to claim 3 is characterized in that
The optical surface of described first optical element and second optical element is staggered relatively, and the 3rd optical element is connected with second optical element optical;
Described first optical element overlaps with the optical axial of second optical element, the optical focus location overlap, and the optical surface of first optical element is more much bigger than the optical surface of second optical element;
Described the 3rd optical element adopts optical fiber or optical cable.
5. natural light collector comprises:
First optical element that adopts the reflecting curved surface reflection to converge natural light;
Second optical element that adopts the light that collimated first optical element converged;
The 3rd optical element of transmission second optical element institute transmitted light.
6. natural light collector according to claim 5 is characterized in that
Described first optical element and second optical element are placed side by side, and the 3rd optical element is connected with second optical element optical;
Described first optical element overlaps with the optical axial of second optical element, the optical focus location overlap, and the optical surface of first optical element is more much bigger than the optical surface of second optical element;
Described the 3rd optical element adopts optical fiber or optical cable.
7. illuminator that adopts natural light comprises:
The infrared light that filters out Infrared filters the 4th optical element;
Light source: adopt claim 1 or claim 3 or claim 5 described natural light collectors to collect and filter the natural light that the 4th optical element filters through above-mentioned infrared light;
The collimated ray that above-mentioned light source is collected changes the 5th optical element that an illumination or line illumination or face are thrown light on into;
The also selectable servomechanism of the natural light irradiation of described natural light collector being aimed at the sun that comprises.
8. light source of electronic system that adopts natural light comprises:
The infrared light that filters out Infrared filters the 4th optical element;
Light source: adopt claim 1 or claim 3 or claim 5 described natural light collectors to collect and filter the natural light that the 4th optical element filters through above-mentioned infrared light;
The 5th optical element of the collimated ray collected of the above-mentioned light source of transmission can adopt optical fiber or optical cable;
The also selectable servomechanism of the natural light irradiation of described natural light collector being aimed at the sun that comprises.
9. light source of electronic system according to claim 8 is characterized in that described the 5th optical element is incorporated into light in the electronic system, as the light source of electronic system.
10. according to Claim 8 or the described light source of electronic system of claim 9, it is characterized in that comprising and also comprise original electric driven for emitting lights light source in the light source of electronic system that adopts natural light collector, when natural light was sufficient, the light of collecting with natural light collector was main light source; When natural light is dim, be main light source with original electric driven for emitting lights light source.
CNA2007101758492A 2007-10-15 2007-10-15 Natural light collector, illumination system and light source of electronic system Pending CN101174027A (en)

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