CN101078498A - Spotlight source device - Google Patents
Spotlight source device Download PDFInfo
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- CN101078498A CN101078498A CN 200710057724 CN200710057724A CN101078498A CN 101078498 A CN101078498 A CN 101078498A CN 200710057724 CN200710057724 CN 200710057724 CN 200710057724 A CN200710057724 A CN 200710057724A CN 101078498 A CN101078498 A CN 101078498A
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- light
- light pipe
- horn shape
- cattle horn
- light source
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Abstract
The invention relates to a horn light pipe device for obtaining thin point light source, belonging to the manufacturing field of point light source. It comprises a taper light pipe. The front end of light pipe is straight cone. The middle bends gradually to form horn shape. The bottom end is the light outlet port. Good reflecting material is coated on the outer wall of light pipe. It can be applied in the field where high-strength thin point light source is need, such as fluorescence excitation and high-strength lighting in material test and biology. It also can be applied in beam coupling. The invention is provided with small size of obtained point light source, high brightness and good uniformity.
Description
Technical field
The present invention relates to the spot light manufacture technology field, particularly a kind of cattle horn shape light Pipe apparatus that can obtain very tiny spot light, can be applied to carry out fluorescence excitation in testing of materials and the biology, high strength irradiation etc. needs the field of the little spot light of high-intensity fine.
Background technology
When the geometry dimension of light source is littler when a lot of to the distance of light source than point of observation, claim that this light source is a spot light.In some application, people wish that spot light is even and size is as far as possible little, are called the small size spot light.
Traditional spot light preparation method generally is that the method for using up by having the very little barriers such as circular hole of yardstick obtains.The acquisition methods of this spot light is to obtain the light source of reduced size by sacrificing light intensity.If obtain the small size spot light by this method, that perforate need be done is very little, obtains required light source by perforate light partly, and most of light energy is blocked outside the hole, and this method is lost a lot of light energies, and is very uneconomical.
The method that another kind obtains spot light does not need to lose a lot of light energies.China Patent No. 93215510.3, authorize day on February 23rd, 1994, name is called " simple and easy spotlight source device ", has introduced the spotlight source device that a kind of conical light collecting barrel that scribbles good reflectorized material by ordinary light source and internal face is formed, this apparatus structure is simple, and energy loss is few.But in this guiding device, the light beam of forward-propagating, can change the direction of propagation and oppositely passes back through after the reflection repeatedly at conical light collecting barrel, causes light beam not spread out of from cone top part.So because the restriction of conical straight light collecting barrel structure can not obtain undersized spot light.
Summary of the invention
The technical problem to be solved in the present invention is to avoid the deficiencies in the prior art part, provides a kind of simple in structure, and the capacity usage ratio height can obtain the cattle horn shape light Pipe apparatus of small size spot light.
Technical scheme of the present invention is:
The cattle horn shape light Pipe apparatus, it comprises a conical light pipe, it is characterized in that: the light pipe front end is straight cone, and the middle part is crooked gradually, is cattle horn shape, and end is that cone top part is the leaded light outlet, and the light pipe outer wall scribbles good reflectorized material.
Described cattle horn shape light Pipe apparatus, terminal leaded light outlet can enter the mouth into the interior any angle of 10 to 90 degree with light pipe.
Described cattle horn shape light Pipe apparatus is made material and be can be glass, also can be other any optical materials.
Described cattle horn shape light Pipe apparatus can be solid conduit, also can be hollow tubing conductor.
Beneficial effect of the present invention:
1, because the ox horn shape of photoconductive tube bending, overcome that light repeatedly reflects and the phenomenon passed back in straight coniform photoconductive tube.The end of photoconductive tube can be processed into very tiny size, thereby obtains the minimum spot light of yardstick, can play a role in a lot of specific uses.
2, the cattle horn shape apparatus structure is simple, and light is few through the energy loss of this device, can obtain the spot light of higher brightness.
3, than straight circular cone conduit, effectively compressing member length can reach overall compactization, the purpose of miniaturization.
4, light can repeatedly reflect in photoconductive tube, can carry out beam shaping, the small size spot light good uniformity that obtains to the light that laser diode etc. sends.
Description of drawings
Figure 1A is the front view of cattle horn shape photoconductive tube of the present invention.
Figure 1B is the vertical view of cattle horn shape photoconductive tube of the present invention.
Fig. 2 is the schematic diagram that light is propagated in the present invention.
Fig. 3 utilizes a fluorescence excitation apparatus structure schematic diagram of the present invention.
Fig. 4 utilizes a beam shaping of the present invention and coupling device schematic diagram.
Fig. 5 is the photo of the material object of one embodiment of the invention.
Among the figure:
1. laser diode array 2. cattle horn shape photoconductive tubes 3. micro slides 4. light sources 5. optical fiber
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is a profile view of the present invention, and wherein Figure 1A and Figure 1B are for Wei not front view and vertical view.By front view as seen, the light pipe front end is straight, and the middle part is crooked gradually, is cattle horn shape, and it is the leaded light outlet that end has an opening.The size of outlet has determined the size of the spot light that will obtain.By vertical view as seen, photoconductive tube begins radius from the middle part and reduces gradually, is for coniform.So whole photoconductive tube is the coniform photoconductive tube of cattle horn shape.
Fig. 2 is the schematic diagram that light is propagated in cattle horn shape photoconductive tube of the present invention.For simplifying view, only draw the propagation schematic diagram of a light in photoconductive tube, the propagation law of remainder light beam is identical during with a light.Light is injected from the photoconductive tube porch, runs into catheter wall after propagating a segment distance, because the photoconductive tube outer wall scribbles the good reflectorized material of one deck, light can not first reflection take place from the tube wall outgoing, is reflected back toward in the tube chamber.Light continue to be propagated, and can repeatedly run into tube wall again in this process, and is identical when running into tube wall for the first time, all can reflect, until light from the outgoing of photoconductive tube exit.Because the phenomenon that picture is oppositely passed back through repeatedly reflecting in straight photoconductive tube when light is propagated therein, can not take place, thereby can obtain exporting sizable spot light with photoconductive tube in the particular curve structure of photoconductive tube.
Fig. 3 is the apparatus structure schematic diagram that utilizes a fluorescence excitation of the present invention.In this embodiment, light source is selected laser diode for use.The laser diode cost is lower, and a plurality of arrays side by side use the higher source luminance that can obtain high performance-price ratio.But the laser beam that laser diode sends is divided into fast and slow axis to be propagated, and the angle of divergence difference of fast and slow axis, and beam quality is relatively poor, need carry out beam shaping usually in actual applications.Among the figure, the laser that diode laser matrix 1 sends incides cattle horn shape photoconductive tube 2, and through repeatedly reflection back realization shaping, the light beam after the shaping is from the outlet outgoing of photoconductive tube in photoconductive tube 2 for light beam.The photoconductive tube outlet can be regarded a small size spot light as, and the brightness height, is evenly distributed.The outlet of photoconductive tube is near needing the excited fluorescent material, and wherein fluorescent material can be attached on the micro slide 3.In the present embodiment, the little spot light of high-intensity fine that the photoconductive tube port of export obtains can excite undersized fluorescent material, indexs such as the resolution ratio of raising fluorescence detection system and sensitivity.
Fig. 4 utilizes a beam shaping of the present invention and coupling device schematic diagram.In this embodiment, light source 4 can be arbitrary face light source, line source or spot light, and the light beam that sends enters cattle horn shape photoconductive tube 2.Through repeatedly reflecting the purpose that reaches shaping, press close to the photoconductive tube end by optical fiber 5 in photoconductive tube for light beam, and the terminal outgoing beam of photoconductive tube can be coupled into light 5 smoothly, reaches the purpose of high efficiency coupling.As seen, the essence of coupling device is that an any light source is shaped as a tiny spot light, and the light that spot light sends enters optical fiber.
Fig. 5 is the photo of the material object of one embodiment of the invention.Wherein making material is glass, and the photoconductive tube end diameter is about 50 microns.
Claims (4)
1. cattle horn shape light Pipe apparatus, it comprises a conical light pipe, it is characterized in that: the light pipe front end is straight cone, and the middle part is crooked gradually, is cattle horn shape, and end is that cone top part is the leaded light outlet, and the light pipe outer wall scribbles good reflectorized material.
2. according to claim 1 described cattle horn shape light Pipe apparatus, it is characterized in that: terminal leaded light outlet can enter the mouth into the interior any angle of 10 to 90 degree with light pipe.
3. according to claim 1 described cattle horn shape light Pipe apparatus, it is characterized in that: make material and can be glass, quartz glass or other any optical materials.
4. according to claim 1 described cattle horn shape light Pipe apparatus, it is characterized in that: can be solid conduit, also can be hollow tubing conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710057724 CN101078498A (en) | 2007-06-22 | 2007-06-22 | Spotlight source device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710057724 CN101078498A (en) | 2007-06-22 | 2007-06-22 | Spotlight source device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101078498A true CN101078498A (en) | 2007-11-28 |
Family
ID=38906104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710057724 Pending CN101078498A (en) | 2007-06-22 | 2007-06-22 | Spotlight source device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101078498A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104956147A (en) * | 2012-07-19 | 2015-09-30 | 维文公司 | Phosphor-based lamps for projection display |
-
2007
- 2007-06-22 CN CN 200710057724 patent/CN101078498A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104956147A (en) * | 2012-07-19 | 2015-09-30 | 维文公司 | Phosphor-based lamps for projection display |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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