CN102200243A - Illumination device - Google Patents

Illumination device Download PDF

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Publication number
CN102200243A
CN102200243A CN 201010142750 CN201010142750A CN102200243A CN 102200243 A CN102200243 A CN 102200243A CN 201010142750 CN201010142750 CN 201010142750 CN 201010142750 A CN201010142750 A CN 201010142750A CN 102200243 A CN102200243 A CN 102200243A
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CN
China
Prior art keywords
reflecting element
focus
lighting device
characterized
reflecting surface
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CN 201010142750
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Chinese (zh)
Inventor
董朝宪
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亿光电子工业股份有限公司
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Priority to CN 201010142750 priority Critical patent/CN102200243A/en
Publication of CN102200243A publication Critical patent/CN102200243A/en

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Abstract

The inveniton relates to an illumination device which is suitable for the illumination of vehicle lights. The illumination device comprises a first light reflective element, a second light reflective element, a light reflective substrate and a light source; the first light reflective element is provided with a parabolic reflective surface; the second light reflective element is provided with a partial ellipsoid reflective surface; the light reflective substrate passes through a focal point of the parabolic reflective surface and a first focal point and a secod focal point of the partial ellipsoid reflective surface, and the focal point is overlapped with the first focal point and is positioned between the second focal point and a peak of the parabolic reflective surface; and the light source is positioned on the focal point and the substrate and is suitable for emitting a light bundle, wherein a connecting line of an outer edge of the first light reflective element and an outer edge of the second light reflective element extends between the light source and the peak.

Description

Lighting device

Technical field

The invention relates to a kind of lighting device, and particularly about a kind of lighting device that can be used for vehicle light illumination.

Background technology

Fig. 1 is the generalized section of existing a kind of lighting device.Please refer to Fig. 1, lighting device 100 comprises a reflecting element 110 and a light source 120.Reflecting element 110 has a parabolic reflector 112, a bottom surface 114 and an accommodation space 116.Parabolic reflector 112 has a summit 112a and a focus 112b, and wherein summit 112a and focus 112b drop on the bottom surface 114.Light source 120 is positioned on the focus, and be suitable for providing a light beam 122, wherein segment beam 122 can directly be passed to parabolic reflector 112, and polished object reflecting surface 112 reflection and form and pass out accommodation space 116 and be parallel to the collimated light beam 122a of bottom surface 114, wherein this collimated light beam 122a is normally as the usefulness of illumination.

Yet, the segment beam 122 that directly passes out accommodation space 116 from light source 120 positions just can form a casual light 122b (being veiling glare) who upwards transmits, so, just can violate the regulation of the "cut-off"line in the general illumination rules, meaning is when being applied to vehicle light illumination when lighting device 100 promptly, its upwards casual light 122b of transmission can have influence on subtend with the passerby or the sight line of sending a car.In other words, so-called "cut-off"line is the regulation that reduces the distribution of light intensity distribution of casual light 122b in the range of exposures of main beam as far as possible.

Past, can block the casual light 122b that upwards transmits by the mode that increases baffle plate usually, use overcome above-mentioned casual light 122b the problem that may bring.Yet, adopt the mode of the class of baffle plate to reduce the illumination efficiency (because of the light beam 122 of majority can be absorbed by baffle plate) of lighting device 100 and improve the cost of manufacture (because of the material of baffle plate must can be born high temperature except meeting, and need to adopt specific resistant to elevated temperatures material), the volume of lighting device 100 integral body also may be increased.

Summary of the invention

The purpose of this invention is to provide a kind of lighting device, it has preferable illumination efficiency.

The present invention proposes a kind of lighting device, is applicable to vehicle light illumination.Lighting device of the present invention comprises one first reflecting element, one second reflecting element, one the 3rd reflecting element and a light source.First reflecting element has an accommodation space and one first reflecting surface, and first reflecting surface is a parabolic curve on section.Second reflecting element is positioned at accommodation space and has second reflecting surface in the face of first reflecting surface, second reflecting surface is a part of elliptic curve on section, wherein a focus of parabolic curve overlaps with one first focus of part elliptic curve, and above-mentioned focus is on the line between one second focus of summit of parabolic curve and part elliptic curve.The 3rd reflecting element is positioned at accommodation space and has one the 3rd reflecting surface on second focus.Light source is disposed in the accommodation space and roughly is positioned on the focus of parabolic curve, and light source is suitable for sending a light beam, wherein the part of light beam is by second reflecting surface reflection and be passed in regular turn on the 3rd reflecting surface and first reflecting surface, and light beam all the other and the part above the summit and the second end points line directly are passed on first reflecting surface.

In one embodiment of this invention, the distance on focus and summit is more than or equal to the distance of first focus and second focus.

In one embodiment of this invention, the 3rd reflecting element comprises a reflective substrate, reflective substrate has the 3rd reflecting surface, reflective substrate is by first focus and second focus of parabolical summit and focus and part elliptic curve, and first reflecting element, second reflecting element and light source are disposed on the reflective substrate, and first reflecting element and reflective substrate define accommodation space.

In one embodiment of this invention, reflective substrate is provided with a reflectorized material, and it will be formed on the zone of second focus of the 3rd reflecting surface, in order to being reflexed to by the segment beam that second reflecting surface is assembled on first reflecting surface at least.

In one embodiment of this invention, the reflective substrate and first reflecting element are formed in one.

In one embodiment of this invention, the reflective substrate and second reflecting element are formed in one.

In one embodiment of this invention, reflective substrate, first reflecting element and second reflecting element are formed in one.

In one embodiment of this invention, first reflecting surface comprises a paraboloid of revolution or first paraboloid of revolution, and second reflecting surface comprises the first half ellipsoid.

In one embodiment of this invention, first reflecting element is provided with a reflectorized material, to form first reflecting surface.

In one embodiment of this invention, second reflecting element is provided with a reflectorized material, to form second reflecting surface.

In one embodiment of this invention, the line of an outer rim of an outer rim of first reflecting element and this second reflecting element extends between light source and the summit.

In one embodiment of this invention, light source comprises a light emitting diode or a gas-discharge lamp.

The present invention provides a kind of lighting device in addition, comprises one first reflecting element, one second reflecting element, a reflective substrate and a light source.First reflecting element has a parabolic reflector, second reflecting element has a part of ellipsoid reflecting surface, reflective substrate is by one first focus of a focus of parabolic reflector and part ellipsoid reflecting surface and one second focus, and focus roughly and first focus is overlapping and between a summit of second focus and parabolic reflector.Light source is to be positioned on focus and the substrate and to be suitable for sending a light beam, and wherein the line of an outer rim of an outer rim of first reflecting element and second reflecting element extends between light source and the summit.

In one embodiment of this invention, the distance on focus and summit is more than or equal to the distance of first focus and second focus.

In one embodiment of this invention, first reflecting element, second reflecting element and light source are disposed on the reflective substrate, and first reflecting element and reflective substrate define an accommodation space, in order to ccontaining second reflecting element and light source.

In one embodiment of this invention, reflective substrate comprises a reflectorized material, and reflectorized material is positioned on second focus, in order to being reflexed to first reflecting element again by this light beam of part that second reflecting element reflexes to second focus.

In one embodiment of this invention, the reflective substrate and first reflecting element are formed in one.

In one embodiment of this invention, the reflective substrate and second reflecting element are formed in one.

In one embodiment of this invention, reflective substrate, first reflecting element and second reflecting element are formed in one.

In one embodiment of this invention, parabolic reflector is one to comprise a paraboloid of revolution or first paraboloid of revolution, and part ellipsoid reflecting surface comprises the first half ellipsoid.

In one embodiment of this invention, first reflecting element comprises a reflectorized material, and reflectorized material forms parabolic reflector.

In one embodiment of this invention, second reflecting element comprises a reflectorized material, and reflectorized material forms part ellipsoid reflecting surface.

In one embodiment of this invention, light source comprises a light emitting diode or a gas-discharge lamp.

Useful technique effect of the present invention is: second reflecting element reflection that lighting device utilization of the present invention has a part ellipsoid reflecting surface directly passes out the light beam of accommodation space from the light source position, veiling glare (or casual optical phenomenon) when throwing light on to reduce is used the regulation that meets the general illumination rules.In addition, with reflective substrate or the 3rd reflecting element and second reflecting element collocation use, the direction of transfer that directly passes out the casual light of accommodation space from light source position can be changed to and to supply the direction of the usefulness of illumination, thereby can promote the illumination efficiency of lighting device integral body.

Description of drawings

For above-mentioned feature and advantage of the present invention can be become apparent, below in conjunction with accompanying drawing preferred embodiment of the present invention is elaborated, wherein:

Fig. 1 is the generalized section of existing a kind of lighting device.

Fig. 2 is the generalized section of the lighting device of one embodiment of the invention.

Fig. 3 is the generalized section of the lighting device of further embodiment of this invention.

Fig. 4 is the generalized section of the lighting device of another embodiment of the present invention.

Fig. 5 is the generalized section of the lighting device of yet another embodiment of the invention.

The specific embodiment

Fig. 2 is the generalized section of the lighting device of one embodiment of the invention, and wherein this lighting device is suitable for using on vehicle light illumination, to meet the regulation of the distribution of light intensity distribution that reduces casual light in the general car light rules.Please refer to Fig. 2, the lighting device 200 of present embodiment comprises one first reflecting element 210, one second reflecting element 220 and a light source 230.First reflecting element 210 has a parabolic reflector 212 and an accommodation space 214, and wherein parabolic reflector 212 has a summit 212a and a focus 212b.Light source 230 is disposed in the accommodation space 214 and is positioned on the focus 212b of parabolic reflector 212, and light source 230 is suitable for providing a light beam 232.In the present embodiment, light source 230 for example is a light emitting diode or a gas-discharge lamp (gas-discharge lamp).

In the present embodiment, because first reflecting element 210 has parabolic reflector 212, therefore, according to quadric optical principle, be positioned at segment beam 232 that the light source 230 on the focus 212b provided after directly being passed to parabolic reflector 212, just can 212 reflections of polished object reflecting surface and form a collimated light beam 232a, this collimated light beam 232a can pass out accommodation space 214 abreast, and illumination can be provided, as shown in Figure 2.

In addition, if when segment beam 232 directly passes out accommodation space 214 from light source 230 positions, just can upwards form the phenomenon of aforesaid casual light (veiling glare).

Therefore, the lighting device 200 of present embodiment also is provided with second reflecting element 220 in accommodation space 214, and second reflecting element 220 has a part ellipsoid reflecting surface 222 in the face of parabolic reflector, wherein part ellipsoid reflecting surface 222 has one first focus 222a and one second focus 222b, the focus 212b and the first focus 222a are positioned on the same position, and focus 212b is on the line between the summit 212a and the second focus 222b.

In the present embodiment, because the first focus 222a of second reflecting element 220 and the focus 212b of first reflecting element 210 are positioned on the same position, and focus 212b is on the line between the summit 212a and the second focus 222b, therefore, according to quadric optical principle, being positioned at that the segment beam that light source 230 provided 232 on the first focus 222a projects behind the part ellipsoid reflecting surface 222 can reflection and be passed on the second focus 222b of part ellipsoid reflecting surface 222.In other words, the light beam 232 that originally directly passed out accommodation space 214 from light source 230 positions just can and be passed on the second focus 222b of part ellipsoid reflecting surface 222 by part ellipsoid reflecting surface 222 reflections of second reflecting element 220, thus, just can overcome above-mentioned casual light (veiling glare) influence that phenomenon caused.

In addition, lighting device 200 also comprises a reflective substrate 240, and wherein reflective substrate 240 is by the summit 212a of parabolic reflector 212 and the first focus 222a and the second focus 222b of part ellipsoid reflecting surface 222, as shown in Figure 2.In the present embodiment, first reflecting element 210, second reflecting element 220 are disposed on the reflective substrate 240 with light source 230, and first reflecting element 210 defines above-mentioned accommodation space 214 with reflective substrate 240.

Because reflective substrate 240 is by summit 212a and the first focus 222a and the second focus 222b, therefore, the light beam 232 that is passed to the second focus 222b by part ellipsoid reflecting surface 222 reflection just can be reflected by reflective substrate 240 and be passed to parabolic reflector 212, then and polished object reflecting surface 212 reflection and pass out accommodation space 214 and form a downward spuious light beam 232b, wherein the direction of transfer of this spuious light beam 232b is opposite with respect to the direction of transfer that aforesaid casual light 122b makes progress.In general, when the direction of transfer of spuious light beam 232b can meet the "cut-off"line of general car light rules when being downward,, it influences sight line with passerby's eyes because of can't shining directly into subtend.

In other words, the lighting device 200 of present embodiment mainly is by using second reflecting element 220 and reflective substrate 240, can make originally upwards advances and cause overflows the light beam 232 of optical phenomenon in order by part ellipsoid reflecting surface 222, reflective substrate 240 and parabolic reflector 212 reflections, thereby make its bang path become the spuious light beam 232b of downward transmission, so not only can reduce even eliminate and overflow optical phenomenon, more can promote the illumination efficiency of integral illumination device to meet rules.In addition, because second reflecting element 220 is to be arranged in the accommodation space 214, therefore, can't additionally increase the space of lighting device 200 integral body.

In one embodiment, the air line distance of focus 212b and summit 212a can be more than or equal to the air line distance of the first focus 222a and the second focus 222b, thus, can limit the volume of second reflecting element, 220 integral body, thereby avoid 220 sections of second reflecting elements to hinder the collimated light beam 232a that is too much reflected as far as possible, and then reduced the illumination efficiency of lighting device 200 integral body by parabolic reflector 212.

In the present embodiment, the reflector (reflector) that above-mentioned reflective substrate 210, above-mentioned first reflecting element 220 and above-mentioned second reflecting element 230 are formed in one, as shown in Figure 2.In the embodiment that other does not illustrate, above-mentioned reflective substrate 240 can be integrated reflector with the first above-mentioned reflecting element 210, and the second above-mentioned reflecting element 230 then is to be installed in addition on the reflective substrate 240.Perhaps, also can be that the reflective substrate 240 and second reflecting element 220 are formed in one, first reflecting element then is installed on the reflective substrate on 240 in addition.Below only for illustrating, according to user's demand and design, it also can be other possible molding mode.

In lighting device 200, but first reflecting element 210, second reflecting element 220 and reflective substrate 240 its materials reflection ray itself, therefore, but also reflection ray of parabolic reflector and part ellipsoid reflecting surface relatively.Yet, in another embodiment, if first reflecting element 210, second reflecting element 220 and reflective substrate 240 its materials itself are can't reflection ray, on then can parabolic reflector 212, on the part ellipsoid reflecting surface 222 of second reflecting element 220 and the coating (coating) that forms a reflectorized material R1 on the reflective substrate 240 respectively at first reflecting element 210, and form another kind of as lighting device 200a that Fig. 3 illustrated, thus, but just reflecting part light beam 232 of parabolic reflector 212, part ellipsoid reflecting surface 222.

In the present embodiment, make progress to form and overflow light for avoiding light beam 232 directly to penetrate accommodation space 214 from light source 230 positions, so the first half outer rim of second reflecting element 220 is extended internally and the first half outer rim of first reflecting element 210 is stretched out.That is to say,, on the structural design of lighting device 200, the line of the first half outer rim of the first half outer rim of first reflecting element 210 and second reflecting element 220 is extended between light source 230 and the summit 212a for reaching above-mentioned purpose.

In lighting device 200a, can form the member of first reflecting element 210, second reflecting element 220 and reflective substrate 240 earlier, then, using the technology of plated film, with on the parabolic reflector 212 that reflectorized material R1 is formed at first reflecting element 210, on the part ellipsoid reflecting surface 222 of second reflecting element 220 and on the reflective substrate 240.In an embodiment of the present invention, reflectorized material R1 is formed on the parabolic reflector 212 of first reflecting element 210 and is necessary on the part ellipsoid reflecting surface 222 of second reflecting element 220.But for reflective substrate 240, reflectorized material R1 is that holomorphism is formed on the reflective substrate 240 in Fig. 3, in another embodiment, for the use that can save reflectorized material R1 and under the illumination efficiency that does not influence lighting device, reflectorized material R1 also can only be formed on the zone of the second focus 222b on the reflective substrate 240, and so the reflectorized material on the second focus 222b can reflect the light beam of being assembled by ellipsoid reflecting surface 222 232 and be passed to parabolic reflector 212.In addition, reflectorized material R1 is formed on the zone of the first focus 222a on the reflective substrate 240 again, thereby directly reflection source 230 luminous to increase whole brightness.

Fig. 4 is the generalized section of the lighting device of another embodiment of the present invention.Please also refer to Fig. 2 and Fig. 4, lighting device 300 is to adopt identical notion with lighting device 200, just the two be not in, the parabolic reflector 312 of first reflecting element 310 of Fig. 4 is a complete rotation parabolic reflector, and first reflecting element 210 of Fig. 2 is first rotation parabolic reflector.In the present embodiment, lighting device 300 comprises a light source 230, one first reflecting element 310, one second reflecting element 220 and one the 3rd reflecting element 340, wherein the 3rd reflecting element 340, second reflecting element 220 are disposed in the accommodation space 314 with light source 230, and the 3rd reflecting element 340 is positioned on the second focus 222b of second reflecting element 220, the light beam 232 that wherein is passed to the second focus 222b by part ellipsoid reflecting surface 222 reflections of second reflecting element 220 can be passed to parabolic reflector 312 by 340 reflections of the 3rd reflecting element, as shown in Figure 4.

Similarly, in order to eliminate above-mentioned casual light (veiling glare) phenomenon, the lighting device 200 of present embodiment is provided with second reflecting element 220 in accommodation space 214, and the light beam 232 that wherein directly penetrates accommodation space 214 from light source 230 positions just can and be passed on the second focus 222b of part ellipsoid reflecting surface 222 by part ellipsoid reflecting surface 222 reflections of second reflecting element 220.Then, being positioned at the 3rd reflecting element 340 on the second focus 222b of second reflecting element 220 can folded light beam 232 and light beam 232 is passed to parabolic reflector 312, also polished object reflecting surface 312 reflects and the downward spuious light beam 232b of formation ejaculation accommodation space 214 afterwards, wherein the direction of transfer of this spuious light beam 232b is opposite with respect to the direction of transfer of aforesaid casual light 122b, the meaning i.e. direction of transfer of casual light 122b is upwards, and the direction of transfer of spuious light beam 232b is downward.

With reference to figure 4, in other words, suppose to be divided into the accommodation space 314 of a plane with first reflecting element 310, following two parts, this plane is by the summit 212a of first reflecting element 310 and focus 212b and perpendicular to paper, the light beam 232 that directly penetrates the first half of accommodation space 214 from light source 230 positions just can and be passed on the second focus 222b of part ellipsoid reflecting surface 222 by part ellipsoid reflecting surface 222 reflections of second reflecting element 220, the 3rd reflecting element 340 is used in collocation again, then can effectively spuious light beam 232b be transferred to can be for the illuminating bundle of lighting device 300 uses, thus, just above-mentioned casual light (veiling glare) influence that phenomenon caused can be overcome, and then the illumination efficiency of lighting device 300 integral body can be promoted.In present embodiment and other embodiment, because the light beam 232b that directly penetrates the Lower Half of accommodation space 214 from light source 230 positions can directly can not violate the regulation of automobile-used illumination rules as illuminating bundle, so preferably the first half ellipsoid reflecting surface of the part ellipsoid reflecting surface 222 of second reflecting element 220.

Because lighting device 300 is similar to lighting device 200 notions, only first reflecting element 310 is slightly different with the structure of first reflecting element 210, and therefore, lighting device 300 has the mentioned advantage of lighting device 200 equally.

In addition, in lighting device 300, but first reflecting element 310, second reflecting element 220 and the 3rd reflecting element 340 its materials reflection ray itself, therefore, but also reflection ray of parabolic reflector 312 and part ellipsoid reflecting surface 222 relatively.Yet, in another embodiment, if first reflecting element 310, second reflecting element 220 and the 3rd reflecting element 340 its materials itself are can't reflection ray, on then can parabolic reflector 312, on the part ellipsoid reflecting surface 222 of second reflecting element 220 and the coating that forms a reflectorized material R1 on the 3rd reflecting element 340 respectively at first reflecting element 310, and form another kind of as lighting device 300a that Fig. 5 illustrated, thus, but just folded light beam 232 of parabolic reflector 312, part ellipsoid reflecting surface 222.

In lighting device 300a, can form the member of first reflecting element 310, second reflecting element 220 and the 3rd reflecting element 340 earlier, then, on the technology of using plated film is formed at reflectorized material R1 the parabolic reflector 312 of first reflecting element 310, on the part ellipsoid reflecting surface 222 of second reflecting element 220 and on the 3rd reflecting element 340.

In sum, lighting device of the present invention has following advantage at least.At first, utilize second reflecting element reflection with part ellipsoid reflecting surface directly to pass out the light beam of accommodation space from the light source position, the regulation that meets general automobile-used illumination rules is used in going up to veiling glare (or casual optical phenomenon) when reducing illumination.In addition, use and by the reflection of part ellipsoid reflecting surface beam reflected and to be passed on the parabolic reflector before reflective substrate or the 3rd reflecting element be arranged at part ellipsoid reflecting surface, afterwards, parabolic reflector just can reflect by reflective substrate or the 3rd reflecting element beam reflected and form the light beam of downward ejaculation accommodation space, for the usefulness of automobile-used illumination.In other words, relative configuration by parabolic reflector, part ellipsoid reflecting surface and reflective substrate or the 3rd reflecting element, the upwards casual light direction of transfer that directly passes out accommodation space from light source position can be changed to and to supply illuminating direction, thereby can promote the illumination efficiency of lighting device integral body.In addition,, therefore, have under the above-mentioned advantage prerequisite, also can not increase the whole volume of lighting device itself because second reflecting element and reflective substrate or the 3rd reflecting element all are arranged in the accommodation space.

Though the present invention discloses as above with embodiment; yet it is not in order to limit the present invention; have in the technical field under any and know the knowledgeable usually; without departing from the spirit and scope of the present invention; when can making all changes that is equal to or replacement, so protection scope of the present invention is when looking accompanying being as the criterion that the application's claim scope defined.

Claims (23)

1. a lighting device is characterized in that, comprising:
One first reflecting element has an accommodation space and one first reflecting surface, and this first reflecting surface is a parabolic curve on section;
One second reflecting element, be positioned at this accommodation space and have second reflecting surface in the face of this first reflecting surface, this second reflecting surface is a part of elliptic curve on section, wherein a focus of this parabolic curve overlaps with one first focus of this part elliptic curve, and this focus is on the line between one second focus of a summit of this parabolic curve and this part elliptic curve;
One the 3rd reflecting element is positioned at this accommodation space and has one the 3rd reflecting surface on this second focus; And
One light source, be disposed in this accommodation space and also roughly be positioned on this focus of this parabolic curve, and this light source is suitable for sending a light beam, wherein the part of this light beam is by the reflection of this second reflecting surface and be passed in regular turn on the 3rd reflecting surface and this first reflecting surface, and this light beam all the other and the part above this summit and this second end points line directly are passed on this first reflecting surface.
2. lighting device according to claim 1 is characterized in that, the distance on this focus and this summit is more than or equal to the distance of this first focus and this second focus.
3. lighting device according to claim 1, it is characterized in that, the 3rd reflecting element comprises a reflective substrate, this reflective substrate has the 3rd reflecting surface, this reflective substrate is by first focus and second focus of this parabolical summit and focus and this part elliptic curve, and this first reflecting element, this second reflecting element and this light source are disposed on this reflective substrate, and this first reflecting element and this reflective substrate define this accommodation space.
4. lighting device according to claim 3, it is characterized in that, this reflective substrate is provided with a reflectorized material, and it is formed on the zone of this second focus of the 3rd reflecting surface at least, in order to this beam reflection of part that will be assembled by this second reflecting surface to this first reflecting surface.
5. lighting device according to claim 3 is characterized in that, this reflective substrate and this first reflecting element are formed in one.
6. lighting device according to claim 3 is characterized in that, this reflective substrate and this second reflecting element are formed in one.
7. lighting device according to claim 3 is characterized in that, this reflective substrate, this first reflecting element and this second reflecting element are formed in one.
8. lighting device according to claim 1 is characterized in that, this first reflecting surface comprises a paraboloid of revolution or first paraboloid of revolution, and this second reflecting surface comprises the first half ellipsoid.
9. lighting device according to claim 1 is characterized in that, this first reflecting element is provided with a reflectorized material, to form this first reflecting surface.
10. lighting device according to claim 1 is characterized in that, this second reflecting element is provided with a reflectorized material, to form this second reflecting surface.
11. lighting device according to claim 1 is characterized in that, the line of an outer rim of this first reflecting element and an outer rim of this second reflecting element extends between this light source and this summit.
12. lighting device according to claim 1 is characterized in that, this light source comprises a light emitting diode or a gas-discharge lamp.
13. a lighting device is characterized in that, comprising:
One first reflecting element has a parabolic reflector;
One second reflecting element has a part of ellipsoid reflecting surface;
One reflective substrate, by a focus of this parabolic reflector and one first focus and one second focus of this part ellipsoid reflecting surface, this focus is roughly and this first focus is overlapping and between a summit of this second focus and this parabolic reflector; And
One light source is positioned on this focus and this substrate and is suitable for sending a light beam, and wherein the line of an outer rim of an outer rim of this first reflecting element and this second reflecting element extends between this light source and this summit.
14. lighting device according to claim 13 is characterized in that, the distance on this focus and this summit is more than or equal to the distance of this first focus and this second focus.
15. lighting device according to claim 13, it is characterized in that, this first reflecting element, this second reflecting element and this light source are disposed on this reflective substrate, and this first reflecting element and this reflective substrate define an accommodation space, in order to ccontaining this second reflecting element and this light source.
16. lighting device according to claim 13, it is characterized in that, this reflective substrate comprises a reflectorized material, and this reflectorized material is positioned on this second focus, in order to being reflexed to this first reflecting element again by this light beam of part that this second reflecting element reflexes to this second focus.
17. lighting device according to claim 13 is characterized in that, this reflective substrate and this first reflecting element are formed in one.
18. lighting device according to claim 13 is characterized in that, this reflective substrate and this second reflecting element are formed in one.
19. lighting device according to claim 13 is characterized in that, this reflective substrate, this first reflecting element and this second reflecting element are formed in one.
20. lighting device according to claim 13 is characterized in that, this parabolic reflector is one to comprise a paraboloid of revolution or first paraboloid of revolution, and this part ellipsoid reflecting surface comprises the first half ellipsoid.
21. lighting device according to claim 13 is characterized in that, this first reflecting element comprises a reflectorized material, and this reflectorized material forms this parabolic reflector.
22. lighting device according to claim 13 is characterized in that, this second reflecting element comprises a reflectorized material, and this reflectorized material forms this part ellipsoid reflecting surface.
23. lighting device according to claim 13 is characterized in that, this light source comprises a light emitting diode or a gas-discharge lamp.
CN 201010142750 2010-03-25 2010-03-25 Illumination device CN102200243A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104676490A (en) * 2015-02-16 2015-06-03 深圳市科曼医疗设备有限公司 Lighting component and operating lamp
CN106594624A (en) * 2016-12-20 2017-04-26 北京汽车股份有限公司 Vehicle lamp and vehicle
CN106895365A (en) * 2015-12-18 2017-06-27 法雷奥照明湖北技术中心有限公司 Reflective optical system and illumination and/or signal indicating device
CN108302484A (en) * 2014-03-14 2018-07-20 王正 Vehicle lamp structure and its Lam-cup structure

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Publication number Priority date Publication date Assignee Title
US5491525A (en) * 1992-11-24 1996-02-13 Hitachi, Ltd. Illumination unit for liquid crystal projection display apparatus and liquid crystal display apparatus having it used
CN1749639A (en) * 2004-09-13 2006-03-22 斯坦雷电气株式会社 Vehicle lamps
CN1841183A (en) * 2005-03-30 2006-10-04 三星电子株式会社 Illumination unit and image projection apparatus employing the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5491525A (en) * 1992-11-24 1996-02-13 Hitachi, Ltd. Illumination unit for liquid crystal projection display apparatus and liquid crystal display apparatus having it used
CN1749639A (en) * 2004-09-13 2006-03-22 斯坦雷电气株式会社 Vehicle lamps
CN1841183A (en) * 2005-03-30 2006-10-04 三星电子株式会社 Illumination unit and image projection apparatus employing the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108302484A (en) * 2014-03-14 2018-07-20 王正 Vehicle lamp structure and its Lam-cup structure
CN104676490A (en) * 2015-02-16 2015-06-03 深圳市科曼医疗设备有限公司 Lighting component and operating lamp
CN106895365A (en) * 2015-12-18 2017-06-27 法雷奥照明湖北技术中心有限公司 Reflective optical system and illumination and/or signal indicating device
CN106594624A (en) * 2016-12-20 2017-04-26 北京汽车股份有限公司 Vehicle lamp and vehicle

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