CN1259589C - Multiplexing apparatus - Google Patents
Multiplexing apparatus Download PDFInfo
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- CN1259589C CN1259589C CNB031046142A CN03104614A CN1259589C CN 1259589 C CN1259589 C CN 1259589C CN B031046142 A CNB031046142 A CN B031046142A CN 03104614 A CN03104614 A CN 03104614A CN 1259589 C CN1259589 C CN 1259589C
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- multiplexing apparatus
- prism
- light
- reflecting surface
- prisms
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Abstract
The present invention relates to an optical combining device comprising a cooling component and a plurality of prisms. Every prism has a reflecting surface coated with a high reflection coating and the prisms are jointed on the cooling component by the reflecting surface.
Description
Technical field
The present invention relates to a kind of Multiplexing apparatus, be easy to accurately locate and have the Multiplexing apparatus of high cooling efficiency when relating in particular to a kind of the assembling.
Background technology
Fig. 1 is a synoptic diagram, shows a kind of existing Multiplexing apparatus 100.As shown in Figure 1, Multiplexing apparatus 100 is made of with photoconductive tube 106, lamp source 108 and catoptron 110 prism 102, photoconductive tube 104.The light that is sent when the lamp source 108 of both sides directly or by catoptron 110 reflections laggard go in the photoconductive tube 104 and and then be fed to prism 102, because light can produce the reflection of different minute surfaces again by photoconductive tube 106 outputs in prism 102, therefore, obtain the close light effect of the light in the different lamps of combination source to same outbound course output.
Obtain the above-mentioned light effect that closes, the course of input light in prism 102 will be according to light path shown in Figure 1, that is to say, the light entrance face 102A of prism 102 not directly contacts with the end face 104A of photoconductive tube 104, provide the space of the medium of low-refraction (for example air etc.) and need keep certain clearance, so that the relative index of refraction of prism and this medium can meet total reflection condition, that is to say that the light that makes all enter prism 102 is able to will to import light via light entrance face 102A and reflexes to light output direction.
Existing a kind of way is to adopt the gluing mode, and the end face 104A of photoconductive tube 104 is attached to light incident minute surface 102A, and viscose is become provides the filled media of two interface gaps 112; Another way is an extra supporting member (not shown) the directly fixed prism 102 and photoconductive tube 104 of using, and makes it can keep certain clearance 112.
Yet the high heat that high power lamp source 108 is produced makes the viscose of keeping the gap rotten and be difficult for accurately keeping the location of 104 of prism 102 and photoconductive tubes easily; In addition, the end face 104A that uses viscose to engage light incident minute surface 102A and photoconductive tube 104 will cause part light to let out via the composition surface of glue, and then influences the coupling efficiency of light; Moreover, utilize an extra supporting member to keep certain clearance 112 of prism 102 and photoconductive tube 104, also can significantly increase the space of whole Multiplexing apparatus.Therefore, need a kind of Multiplexing apparatus that when assembling, can precisely locate and can not cause the problems referred to above badly.
Summary of the invention
For overcoming the above-mentioned defective of prior art, the object of the present invention is to provide a kind of Multiplexing apparatus, it can accurately be located prism and make it to satisfy total reflection condition when assembling, and can overcome the high heat problem in the Multiplexing apparatus.
In order to achieve the above object, the invention provides a kind of Multiplexing apparatus, in order to deriving with identical direction from the input light of two different directions, this device comprises: a radiating piece; And a plurality of prisms, respectively this prism has the reflecting surface that is coated with highly reflective coatint and forms; It is characterized in that: respectively this prism is bonded on this radiating piece via this reflecting surface.
According to one embodiment of present invention, Multiplexing apparatus is made of a radiating block spare and two right-angle prisms, and an inclined-plane of each prism also is coated with highly reflective coatint (Highreflection coating), to form a reflecting surface.Then, the two prisms reflecting surface that will have highly reflective coatint respectively is attached on the radiating block spare.Prism can adopt the gummed mode to be attached on the radiating block spare, perhaps can form metal coating in the one side that prism will be attached on the radiating block spare, utilizes processing modes such as welding, welding to engage with radiating piece.And, be provided with the solid or hollow light pipe that a homogenising derives light at the photoconduction outgoing direction.
The present invention's design makes radiating block spare via the direct fixed prism of the reflecting surface with highly reflective coatint, can guarantee that prism freely contacts with medium, to meet the purpose of total reflection condition, do not need to produce the medium gap by the member of locating photoconductive tube and so on again, therefore can not cause locating the bad light leakage phenomena that causes, and the radiating block spare of high heat conduction efficiency can distribute the heat of the highly reflective coatint of prism rapidly, so just do not need the higher coating of plated film quality, thereby can significantly reduce manufacturing cost.
According to another embodiment of the present invention, comprise a beam condensing unit in addition to obtain the dual light effect that closes, to improve the output light intensity.This beam condensing unit can be the combination of ellipsoid reflecting surface or parabolic minute surface and condenser lens.
Moreover, also the quantity of prism can be adjusted into four, so that beam condensing unit is disposed at the homonymy of Multiplexing apparatus, taken up space to reduce Multiplexing apparatus.
In addition, prism all the other minute surfaces except that the high reflectance coated face can carry out antireflection coating (Anti-reflection Coating), to increase the incident efficient of light.
Description of drawings
Fig. 1 is for showing a kind of synoptic diagram of existing Multiplexing apparatus;
Fig. 2 is a synoptic diagram, shows a preferred embodiment of Multiplexing apparatus of the present invention;
Fig. 3 is a synoptic diagram, locatees the bad light leakage phenomena that causes in order to explanation because of prism;
Fig. 4 is for showing the synoptic diagram of another embodiment of the present invention;
Fig. 5 is according to embodiment shown in Figure 4, shows the synoptic diagram of another design of its beam condensing unit;
Fig. 6 is for showing the synoptic diagram of another embodiment again of the present invention.
Symbol description among the figure
10,40,50,100 Multiplexing apparatus
12 radiating block spares
14,14 ', 16,16 ' prism
14A, 16A reflecting surface
14B, 16B prism minute surface
18 highly reflective coatints
19 photoconductive tubes
20,22 lamp sources
21 all the other members
24,26 ellipsoid reflectings surface
28,30 parabolic minute surfaces
32,34 condenser lenses
100 Multiplexing apparatus
102 prisms
The 102A light entrance face
104,106 photoconductive tubes
104A photoconductive tube end face
108 lamp sources
110 catoptrons
112 gaps
E1, E2 lamp source
I1, I2 input beam
M, M ', N, N ', R, R ', S, S ', X, X ', Y, Y ' focus
Embodiment
Following conjunction with figs. describes embodiments of the invention in detail.
Fig. 2 is a synoptic diagram, shows a preferred embodiment of Multiplexing apparatus 10 of the present invention.As shown in Figure 2, this Multiplexing apparatus 10 comprises a radiating block spare 12, prism 14 and prism 16.
In the present embodiment, for well, and each surface of prism all passes through polishing to prism 14 and 16 with right-angle prism (Rectangular prism), to form smooth surface.As shown in Figure 2, an inclined-plane of prism 14 and prism 16 also is coated with highly reflective coatint (High reflectioncoating) 18 to constitute reflecting surface 14A and 16A.Radiating block spare 12 can adopt the material with high heat conduction efficiency, for example the metal material of copper and so on.Prism 14 and prism 16 are pasted to radiating block spare 12 with reflecting surface 14A and the 16A with highly reflective coatint respectively, and constitute Multiplexing apparatus 10 of the present invention.The mode that prism 14 and 16 is pasted to radiating block spare 12 does not limit, for example can adopt the gummed mode to be attached on the radiating block spare, or can form metal coating in the one side that prism will be attached on the radiating block spare, utilize processing modes such as welding, welding to engage with this radiating piece.
As shown in Figure 2, as input light I1 and I2 from the different direct of travels of different lamps source E1 and E2, respectively by Multiplexing apparatus of the present invention 10 both sides, that is to say, when entering Multiplexing apparatus 10 by the minute surface 14B of two prisms 14 and 16 and minute surface 16B respectively, the total reflection condition that is constituted with medium (for example air) respectively by prism minute surface 14B and minute surface 16B, and the reflecting surface 14A and the 16A of tool highly reflective coatint, input light I1 and I2 from different direct of travels can be derived by the same direction of illustrated optical routing, reach the purpose of closing light.Moreover present embodiment is provided with a photoconductive tube 19 at the photoconduction outgoing direction, derivation light can be exported to equably and treat (for example projector) in the application system, and photoconductive tube 19 can be a hollow or solid photoconductive tube.
For reaching this light effect that closes, right- angle prism 14 and 16 location are considerable, because prism 14 and 16 all the other minute surfaces except that the reflecting surface of tool highly reflective coatint, all need freely to keep in touch to meet total reflection condition, so that input luminous energy is derived by the same direction of illustrated optical routing through prismatic reflection with air dielectric.Fig. 3 is a synoptic diagram, shows the light leakage phenomena that is caused when bad because of locating.As shown in Figure 3, when prism is located when bad contact all the other members 21 (for example photoconductive tube) easily, make prism minute surface 14B can't be fully and air dielectric keep in touch to meet total reflection condition, like this, the input light I1 of the former light conducting direction that should be ordered to Q by the P point reflection, the direction that can become by Q ' point spills.
Therefore, consider in each minute surface of prism, unique reflecting surface 14A and 16A of just having highly reflective coatint of keeping in touch with air dielectric of not needing, so, the present invention directly with radiating block spare 12 via binding this reflecting surface 14A and 16A fixed prism 14 and 16, can guarantee the accurate location of prism itself, reach freely and keep in touch to meet the purpose of total reflection condition with air dielectric, and need be as prior art, must utilize the relative position between the photoconductive tube on prism and the light input direction to produce the medium gap, in other words, the present invention's design makes prism itself just can reach the positioning requirements that meets total reflection condition, and the photoconductive tube that must not relocate on the light input direction produces the medium gap, therefore can not cause as shown in Figure 3, because of locating the bad prism contact light leakage phenomena that photoconductive tube or other member caused that causes.Moreover if will use the present invention in arbitrary system, but an end of direct control radiating block spare 12 makes assembling more easy.
Make up in the Multiplexing apparatus in different lamps source, the high heat that high power produced in lamp source, make highly reflective coatint 18 Yin Gaore easily and produce rottenly, and can cause the problem that causes disbonding between coating and prism facets because of the different thermal stress that produce of heat-conduction coefficient.Therefore, the radiating block spare 12 of the present invention by high heat conduction efficiency distributes the heat of the highly reflective coatint 18 of prism rapidly, and can not cause foregoing problems, and, the higher highly reflective coatint of plated film quality can be do not needed like this, thereby manufacturing cost can be significantly reduced.
Therefore, by design of the present invention, be easy to accurately locate and improve the obvious effect of radiating effect in the time of can bringing assembling simultaneously.
In addition, prism 14 and 16 all the other minute surfaces except that high reflectance coated face 14A and 16A can carry out antireflection coating (Anti-reflection Coating), to increase the incident efficient of light.
Fig. 4 is a synoptic diagram, to show another embodiment of the present invention.Present embodiment prism both sides configuration section ellipsoid reflecting surface 24 and 26 and lamp source 20,22 so that input light to be provided.As shown in Figure 4, by this design, when two lamp sources 20 and 22 are placed focus M of ellipsoid reflecting surface 24 and 26 and N respectively, utilize the optical characteristics of ellipsoid reflecting surface, the light that the lamp source can be sent enters prism 14 and 16 after converging to another focus M ' and N ', enters at last in the photoconductive tube 19 again, like this, two lamp sources 20 and 22 light that sent all can be exported by same photoconductive tube 19, and can obtain the dual light effect that closes, and improve the output light intensity.Also have, the beam condensing unit that the light that present embodiment sends the lamp source converges to another focus is not defined as the ellipsoid reflecting surface, and for example, this beam condensing unit also can be the combination of parabolic minute surface and condenser lens.As shown in Figure 5, parabolic minute surface 28 and 30 condenser lens 32 and 34 of can arranging in pairs or groups respectively is disposed at the both sides of prism, place the focus X-ray and the Y of parabolic minute surface 28 and 30 respectively when lamp source 20 and 22, lamp source 20 and 22 light that sent can go out via parabolic minute surface 28 and 30 reflected in parallel, enter prism 14 and 16 after converging to X ' and Y ' point via condenser lens 32 and 34 again, can obtain the dual light effect that closes equally.
Moreover the position of ellipsoid reflecting surface 24,26 and parabolic minute surface 28,30 does not limit, and only needs to guarantee that can enter prism by the light that the lamp source converges to another focus gets final product.
Fig. 6 is a synoptic diagram, shows another embodiment again of the present invention.As shown in Figure 6, this Multiplexing apparatus 50 comprises two groups of prisms 14,14 ' and 16,16 ' of combination in twos, by this prism configuration mode, can be distributed in the same side of Multiplexing apparatus 50 as the beam condensing unit of ellipsoid reflecting surface 24,26, can will converge to focus R ' and S ', to reduce Multiplexing apparatus 50 whole shared spaces at the light that the lamp source at focus R and S place is sent.
The above only is an illustrative, and also nonrestrictive.Anyly do not break away from spirit of the present invention and category, and, all should be included in the claim scope of the present invention its equivalent modifications of carrying out or change.
Claims (11)
1. Multiplexing apparatus, in order to deriving with identical direction from the input light of two different directions, this device comprises:
One radiating piece; And
A plurality of prisms, respectively this prism has the reflecting surface that is coated with highly reflective coatint and forms; It is characterized in that:
Respectively this prism is bonded on this radiating piece via this reflecting surface.
2. Multiplexing apparatus as claimed in claim 1 is characterized in that, the lamp of this input light source that provides more is provided.
3. Multiplexing apparatus as claimed in claim 1 is characterized in that, these a plurality of prisms all the other minute surfaces except that this reflecting surface have antireflecting coating.
4. Multiplexing apparatus as claimed in claim 1 is characterized in that, these a plurality of prisms are right-angle prism, and this radiating piece is constituted by metal material.
5. Multiplexing apparatus as claimed in claim 1 is characterized in that, these a plurality of prisms are attached on this radiating piece with gummed, welding or welding mode.
6. Multiplexing apparatus as claimed in claim 1 is characterized in that, more comprises the solid or hollow light pipe that homogenising derives light.
7. Multiplexing apparatus as claimed in claim 1 is characterized in that, more comprises the beam condensing unit of corresponding two input light configuration.
8. Multiplexing apparatus as claimed in claim 7 is characterized in that, this beam condensing unit is the ellipsoid reflecting surface.
9. Multiplexing apparatus as claimed in claim 7 is characterized in that, this beam condensing unit is the combination of paraboloidal mirror and condenser lens.
10. Multiplexing apparatus as claimed in claim 7 is characterized in that this beam condensing unit is distributed in the both sides of this Multiplexing apparatus.
11. Multiplexing apparatus as claimed in claim 7 is characterized in that, this beam condensing unit is distributed in the same side of this Multiplexing apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031046142A CN1259589C (en) | 2003-02-17 | 2003-02-17 | Multiplexing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031046142A CN1259589C (en) | 2003-02-17 | 2003-02-17 | Multiplexing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1523395A CN1523395A (en) | 2004-08-25 |
| CN1259589C true CN1259589C (en) | 2006-06-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031046142A Expired - Fee Related CN1259589C (en) | 2003-02-17 | 2003-02-17 | Multiplexing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1259589C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5008209B2 (en) * | 2006-07-31 | 2012-08-22 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Light emitting device |
| CN103727433B (en) * | 2013-12-20 | 2016-07-06 | 广州市雅江光电设备有限公司 | A kind of LED ring type prism light source |
| JP2017129744A (en) * | 2016-01-20 | 2017-07-27 | フォトンリサーチ株式会社 | Optical multiplexing device |
-
2003
- 2003-02-17 CN CNB031046142A patent/CN1259589C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1523395A (en) | 2004-08-25 |
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Granted publication date: 20060614 Termination date: 20160217 |