CN104880819B - Color wheel and projection system using same - Google Patents
Color wheel and projection system using same Download PDFInfo
- Publication number
- CN104880819B CN104880819B CN201510283197.9A CN201510283197A CN104880819B CN 104880819 B CN104880819 B CN 104880819B CN 201510283197 A CN201510283197 A CN 201510283197A CN 104880819 B CN104880819 B CN 104880819B
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- Prior art keywords
- light incidence
- thickness
- incidence section
- face
- colour wheel
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- 230000003287 optical effect Effects 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 8
- 239000003086 colorant Substances 0.000 claims description 5
- 230000001154 acute effect Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000011368 organic material Substances 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 2
- 230000005855 radiation Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Projection Apparatus (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
The invention relates to a color wheel and a projection system using same; the color wheel comprises the following structures: a first surface and a second surface opposite to the first surface, wherein the first surface is close to a light source of the projection system when compared with the second surface; light in zones formed by coaxial a first light in zone to m light in zones, wherein the thickness from the first to m light in zones is respectively a 1st thickness to a m-th thickness; non-light in zones formed by coaxial a first non-light in zone to n non-light in zones wherein the thickness from the first to n non-light in zones is respectively a m+1 thickness to m+n thickness. The light in zones and the non-light in zones penetrate the first and second surfaces, and are coaxially arranged; the first thickness to the m+n thickness are not completely same in sizes, and the m and n are positive integers. Compared with the prior art, the thicknesses of the color wheel are not completely same, thus enlarging a surface area, and correspondingly improving heat radiation capability.
Description
Technical field
The present invention relates to a kind of colour wheel for optical projection system, more particularly to a kind of colour wheel of good heat dissipation, and application
The optical projection system of the colour wheel.
Background technology
In recent years, LASER Light Source presents the impetus of fast development in the application of fluorescent material projection field.To reach brightness
The requirement of aspect, needs the power for improving constantly laser, but, colour wheel can be caused when on high-power laser light incident to colour wheel to produce
The more heat of life, and and can also produce heat because rotating at a high speed under colour wheel mode of operation, so that the radiating of colour wheel is asked
Topic is particularly important.
Presently, typically in round pie, relative two faces of colour wheel are generally plane to the colour wheel used by industry, are solution
Colour wheel heat dissipation problem, the method for typically adopting increase colour wheel diameter that radiating effect is improved with increasing heat radiation area in industry, but
This method also has a series of problem, for example：The volume increase of colour wheel is unfavorable so as to take more space in projection arrangement
In projection arrangement miniaturization：Colour wheel diameter causes greatly colour wheel rotation to be difficult to balance or rotate to cause colour wheel edge deformation
Deng.
The content of the invention
In view of the foregoing, it is necessary to propose a kind of colour wheel and the optical projection system using it, improve the same of its heat-sinking capability
When ensure its rotational stability.
It is that up to above-mentioned purpose, the present invention provides a kind of colour wheel, for optical projection system, including：
First face and second face relative with the first face, wherein the first face faces the light of the nearly optical projection system compared with second
Source,
Light incidence section, light incidence section through the first face and the second face, and light incidence section by the 1st coaxial light incidence section to m light incidence sections
Composition, the 1st light incidence section to the thickness of m light incidence sections is respectively the 1st thickness to m thickness；
Non- light incidence section, through the first face and the second face, non-light incidence section is by the 1st coaxial non-light incidence section to n-th for non-light incidence section
Non- light incidence section composition, the 1st non-light incidence section to the thickness of the n-th non-light incidence section is respectively m+1 thickness to m+n thickness；And
Central axis；
Wherein, light incidence section is coaxially disposed with non-light incidence section, axis be the central axis, the 1st thickness to m+n thickness it is big
Little incomplete same, m, n are positive integer.
Used as optional technical scheme, m light incidence sections adjoin with the 1st non-light incidence section, during non-light incidence section is closed on compared with light incidence section
Heart axis.
Used as optional technical scheme, there is plural number to plant the luminescent material of different colours for light incidence section, and plural number plants different colours
Luminescent material be luminous organic material or phosphor.
Used as optional technical scheme, the size of the 1st thickness to m thickness is increasing trend.
Used as optional technical scheme, the size of the 1st thickness to m thickness is linear trends of change.
As optional technical scheme, the cross sectional shape up and down of light incidence section be right angled triangle, acute triangle or
Obtuse triangle.
Used as optional technical scheme, the first face is plane or on-plane surface, and the second face is on-plane surface.
Used as optional technical scheme, on-plane surface is the convex surface of middle part evagination, or for the concave surface of middle part indent.
Used as optional technical scheme, the size of m+1 thickness to m+n thickness is increasing trend or constant.
Used as optional technical scheme, non-light incidence section also includes a plurality of micro-structurals, and a plurality of micro-structurals are arranged at first
Face and/or the second face, a plurality of micro-structurals are salient point or concave point.
The present invention also provides a kind of optical projection system, including above-mentioned colour wheel.
Compared with prior art, the thickness of colour wheel of the present invention is incomplete same, without the need for increasing colour wheel diameter by increase table
Area, heat-sinking capability also can be improved accordingly.
Description of the drawings
Fig. 1 is the first direction schematic diagram of the first embodiment of colour wheel of the present invention；
Fig. 2 is the sectional view of the first embodiment of colour wheel of the present invention；
Fig. 3 is the sectional view of the second embodiment of colour wheel of the present invention；
Fig. 4 is the sectional view of the 3rd embodiment of colour wheel of the present invention.
Specific embodiment
To make to have the purpose of the present invention, construction, feature and its function further understanding, hereby coordinate embodiment detailed
It is described as follows.
Fig. 1 is the first direction schematic diagram of the first embodiment of colour wheel of the present invention, and first direction is to color from terms of light source
The direction of wheel 100.From the face that first party is looked up into, the first face A of such as rounded face shown in Fig. 1, as colour wheel 100, and
Relative another side is the second face B.
Fig. 2 is the sectional view of the first embodiment of colour wheel of the present invention, is as done through the central axis 130 of colour wheel 100
Any one sectional view, in Fig. 2 arrow be radiation direction.Because colour wheel 100 with regard to central axis 130 is symmetrical and the first face A with
Second face B is circle, as long as so through central axis 130 section all same (i.e. central axis 130 positioned at section be located
Plane in).
Fig. 1, Fig. 2 are refer to, colour wheel 100 can be used for optical projection system, it includes light incidence section 110, non-light incidence section 120 and center
The first face A and the second face B, and light incidence section 110 and non-light incidence section 120 are run through in axis 130, light incidence section 110 and non-light incidence section 120
It is coaxially disposed, refers specifically to light incidence section 110 and non-light incidence section 120 and there is common axis of rotation line, axis is 130.Light incidence section 110 by
Coaxial the 1st light incidence section 111 to m light incidence sections 11m compositions, the thickness of the 1st light incidence section 111 to m light incidence sections 11m is respectively the
1 thickness is to m thickness；Non- light incidence section 120 is made up of the non-light incidence section 12n in the coaxial 1st non-light incidence section 121 to the n-th, the 1st it is non-enter
Light area to the thickness of the n-th non-light incidence section is respectively m+1 thickness to m+n thickness, and m, n are positive integer, in the present embodiment,
1st light incidence section 111 to m light incidence sections 11m, the non-light incidence section 12n in the 1st non-light incidence section 121 to the n-th are annular shape.
There is plural number to plant the luminescent material of different colours for light incidence section 110, can be luminous organic material, or inorganic
Luminescent material, color and the species of material are not restricted, and need to only meet the optical requirement of colour wheel.
1st light incidence section 111 to m light incidence sections 11m, the non-light incidence section 12n in the 1st non-light incidence section 121 to the n-th have respectively one side
Parallel to the line segment of central axis 130, and the length of the corresponding line segment is the area to each respective identification indication in boundary, i.e. Fig. 2
Thickness, in other words, the thickness that the area can be defined with the size of area's thickness.For example, the thickness of thickness the 1st of the 1st light incidence section 111
The size of 111 indication line segments is identified in as Fig. 2.
Wherein, the thickness of colour wheel 100 is dimensioned to：1st thickness is incomplete same to the size of m+n thickness, i.e., extremely
Few thickness is different from other thickness.For existing colour wheel structure, under the setting of this kind of thickness, the table of colour wheel 100
Face occurs protrusion or recessed at least, and surface area will increase, and heat-sinking capability also can be improved correspondingly.Change speech
It, as long as when the first face A and the second face B different of colour wheel 100 being plane, its surface area will be more than round pie in prior art
Colour wheel, heat-sinking capability also just has and correspondingly improves.The shape of colour wheel the first face A and the second face B i.e. in the present invention can foundation
Depending on specific optical requirement, and it is not construed as limiting, is plane when need to only meet the first face A and the second face B different.
In the present embodiment, m light incidence sections adjoin with the 1st non-light incidence section, i.e., light incidence section 110 is in the face of colour wheel 100 first
Fringe region, in zone line, central axis 130 is closed in non-light incidence section 120 compared with light incidence section 110 for non-light incidence section 120, certainly,
In other embodiments, light incidence section 110 can also be in zone line.
In the present embodiment, the 1st light incidence section 111 to m light incidence sections 11m, the non-light incidence section in the 1st non-light incidence section 121 to the n-th
12m is inwardly arranged successively from the periphery of colour wheel 100, in other embodiments, or it is spaced, but to simplify system
Journey, present embodiment is an entirety from mode, i.e. light incidence section 110 and non-light incidence section 120 is arranged in order.
It is light incidence section 110 in view of the main heat affected zone of colour wheel 100, i.e., no matter laser beam is directly through light incidence section
110 or it is incident to light incidence section 110 and is reflected again, can all produces larger heat.Present embodiment is for the thickness of light incidence section 110
The size of degree, in other words for the thickness of light incidence section 110 is made especially to process.For example, corresponding 1st thickness is to the m thickness
Size is increasing trend, i.e., light incidence section 110 will be thicker than part away from axis 130 near the part of axis 130, so arrange
Purpose ensures the stability of rotation while being wheel surface product increase, the ability of raising radiating by light incidence section 110, when
So, the size of corresponding 1st thickness to m thickness can also be decline trend, but if so arranging, rotational stability is weak
In above-mentioned incremental embodiment, thickness changing trend can be determined according to self-demand.
Consider further that colour wheel 100 enters light and goes out the efficient and controllability of light, in present embodiment, the 1st thickness is to m thickness
Size be that linear trends of change, i.e. the first face A and the second face B are plane in the part of light incidence section, so, light incidence section 110
Two sections up and down be similar to the shape of right angled triangle.I.e. in the present embodiment, the first face A be plane, the second face B
For on-plane surface, certainly, in other embodiments, two sections up and down of light incidence section 110 can also for acute triangle or
The shape of obtuse triangle, i.e. the first face and the second face can be on-plane surface, and on-plane surface here includes the convex of middle part evagination
Face or the concave surface for middle part indent.
The secondary heat affected zone of colour wheel 100 is non-light incidence section 120, and in present embodiment, the m+1 of non-light incidence section 120 is thick
Spend constant to the size of m+n thickness, from section, colour wheel 100 is similar to trapezoidal shape, near the thickness of axis 130
More than the thickness away from axis 130, while area of dissipation is greatly increased, it is also possible to ensure the stability for rotating.
In other embodiments, for preferably radiating or more preferable rotational stability, the m+ of non-light incidence section 120
The size of 1 thickness to m+n thickness can also be increasing trend, and certainly, this needs comprehensive consideration colour wheel cost and cooling requirements
Between balance.
In addition, rotate windage further to increase the area of dissipation of colour wheel 100 and reducing, non-light incidence section 120 can be with
Increase a plurality of micro-structural (not shown), micro-structural can be in the first face, it is also possible to which, in the second face, position is simultaneously not construed as limiting, micro-
Structure can be salient point or concave point.
Certainly, no matter the change design of thickness or the layout of micro-structural are both needed to meet the condition of rotary balance, balance strip
It is zero that part is centrally located the rotating torque algebraical sum of the both sides colour wheel of axis 130.
In the present embodiment, rotating shaft (not shown) can be also provided with axis 130, in other embodiments, it is also possible to
Rotating shaft is not provided with, makes colour wheel rotate the purpose for reaching light splitting as long as disclosure satisfy that.
Fig. 3 is the sectional view of the second embodiment of colour wheel of the present invention, refer to Fig. 3, colour wheel 200 include light incidence section 210,
Non- light incidence section 220 and central axis 230, light incidence section 210 is coaxially disposed with non-light incidence section 220, and axis is 230.Arrow is in Fig. 3
Radiation direction, i.e. light source see the direction to colour wheel 200, from the face seen in this direction, as the first face A of colour wheel 200, and phase
To another side be the second face B of colour wheel 200.For the surface area for further increasing light incidence section 210, heat-sinking capability is improved, with
Unlike first embodiment, two sections up and down of light incidence section 210 are similar to acute triangle in present embodiment
Shape, the first face A of colour wheel 200 is convex surface, the second face B of colour wheel 200 the first face A equally also for convex surface, i.e. colour wheel 200 and
Second face B is middle part thickness, the structure of thin edge, and middle part is convex shape relative to edge.
Fig. 4 is the sectional view of the 3rd embodiment of colour wheel of the present invention, refer to Fig. 4, colour wheel 300 include light incidence section 310,
Non- light incidence section 320 and central axis 330, light incidence section 310 is coaxially disposed (arrange along same rotary shaft) with non-light incidence section 320, rotation
Axis 330 centered on shaft axis.Arrow is that radiation direction, i.e. light source see direction to colour wheel 300 in Fig. 4, from this direction
The first face A in the face arrived, as colour wheel 300, and relative another side is the second face B of colour wheel 300.With first embodiment
Except for the difference that, two sections up and down of light incidence section 310 are the shape similar to obtuse triangle, i.e. colour wheel in present embodiment
300 the first face A is convex surface, and the second face B of colour wheel 300 is concave surface, wherein, the middle part thickness of the first face A, thin edge, the first face A
Middle part (near the region of rotation axis 330) be convex shape relative to edge, and the second face B is from edge to axis region
Gradually form concave shape.
The colour wheel of the invention described above can be applied in some optical projection systems, such as projector or projection TV etc..
In sum, the thickness of colour wheel of the present invention is incomplete same, without the need for increasing colour wheel by increase surface area, heat radiation energy
Power also can be improved accordingly, and colour wheel is thicker than the part away from axis near the part of axis, ensure that what is rotated stablizes with this
Property.
Certainly, the present invention can also have other various embodiments, ripe in the case of without departing substantially from spirit of the invention and its essence
Knowing those skilled in the art can make various corresponding changes and deformation, but these corresponding changes and deformation according to the present invention
The protection domain of appended claims of the invention should all be belonged to.
Claims (10)
1. a kind of colour wheel, for optical projection system, it is characterised in that the colour wheel includes：
First face and second face relative with first face, wherein first face are compared with second light for facing the nearly optical projection system
Source,
Light incidence section, the light incidence section is entered by the 1st coaxial light incidence section through first face and second face, and the light incidence section to m
Light district's groups are into the 1st light incidence section to the thickness of the m light incidence sections is respectively the 1st thickness to m thickness；
Non- light incidence section, the non-light incidence section through first face and second face, the non-light incidence section by the 1st coaxial non-light incidence section extremely
N-th non-light incidence section composition, the 1st non-light incidence section to the thickness of the n-th non-light incidence section is respectively m+1 thickness to m+n thickness；
And
Central axis；
Wherein, the light incidence section is coaxially disposed with the non-light incidence section, and axis is the central axis, and the 1st thickness is to the m+n thickness
Size it is incomplete same, the size of the 1st thickness to the m thickness is increasing trend, and m, n are positive integer.
2. colour wheel as claimed in claim 1, it is characterised in that the m light incidence sections adjoin with the 1st non-light incidence section, this it is non-enter
The central axis closes on compared with the light incidence section in light area.
3. colour wheel as claimed in claim 1, it is characterised in that there is plural number to plant the luminescent material of different colours for the light incidence section,
It is luminous organic material or phosphor that the plural number plants the luminescent material of different colours.
4. colour wheel as claimed in claim 1, it is characterised in that the 1st thickness becomes to the size of the m thickness for linear change
Gesture.
5. colour wheel as claimed in claim 4, it is characterised in that the shape of the light incidence section is right angled triangle, acute angle triangle
Shape or obtuse triangle.
6. colour wheel as claimed in claim 1, it is characterised in that first face is plane or on-plane surface, second face is non-flat
Face.
7. colour wheel as claimed in claim 6, it is characterised in that the on-plane surface is the convex surface of middle part evagination, or in middle part
Recessed concave surface.
8. colour wheel as claimed in claim 1, it is characterised in that the size of the m+1 thickness to the m+n thickness is to be incremented by
Gesture is constant.
9. colour wheel as claimed in claim 1, it is characterised in that the non-light incidence section also includes a plurality of micro-structurals, and this is a plurality of
Micro-structural is arranged at first face and/or second face, and a plurality of micro-structurals are salient point or concave point.
10. a kind of optical projection system, it is characterised in that the optical projection system includes the color as described in any one in claim 1-9
Wheel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510283197.9A CN104880819B (en) | 2015-05-28 | 2015-05-28 | Color wheel and projection system using same |
| TW104139607A TWI610120B (en) | 2015-05-28 | 2015-11-26 | Color wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510283197.9A CN104880819B (en) | 2015-05-28 | 2015-05-28 | Color wheel and projection system using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104880819A CN104880819A (en) | 2015-09-02 |
| CN104880819B true CN104880819B (en) | 2017-05-03 |
Family
ID=53948375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510283197.9A Active CN104880819B (en) | 2015-05-28 | 2015-05-28 | Color wheel and projection system using same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104880819B (en) |
| TW (1) | TWI610120B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110032030B (en) * | 2018-01-11 | 2021-10-26 | 深圳光峰科技股份有限公司 | Wavelength conversion device, manufacturing method thereof, light source device and projection equipment |
| CN110119058A (en) * | 2018-02-07 | 2019-08-13 | 深圳光峰科技股份有限公司 | Wavelength converter |
| CN110389488B (en) * | 2018-04-19 | 2021-11-12 | 深圳光峰科技股份有限公司 | Light source system and projection equipment |
| CN111381358B (en) * | 2018-12-29 | 2021-12-31 | 深圳光峰科技股份有限公司 | Wavelength conversion device, light-emitting device and projection device |
| CN215867493U (en) | 2021-09-06 | 2022-02-18 | 中强光电股份有限公司 | Wheel and projection device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101589325A (en) * | 2006-12-04 | 2009-11-25 | 奥尔利康贸易股份公司（特吕巴赫） | Color wheel |
| CN103226283A (en) * | 2012-01-31 | 2013-07-31 | 鸿富锦精密工业（深圳）有限公司 | Color wheel device of projector |
| CN103900035A (en) * | 2014-02-25 | 2014-07-02 | 扬州吉新光电有限公司 | Fluorescent powder color wheel base plate with demarcation structures and manufacturing method thereof |
| CN203721767U (en) * | 2013-11-25 | 2014-07-16 | 扬州吉新光电有限公司 | Phosphor color-wheel substrate with partitioned structures |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5777694A (en) * | 1995-06-13 | 1998-07-07 | Texas Instruments Incorporated | Color wheel with plastic film filters |
| JP4063213B2 (en) * | 2003-12-09 | 2008-03-19 | カシオ計算機株式会社 | LIGHT SOURCE DEVICE AND PROJECTOR HAVING THE SAME |
| TWI255349B (en) * | 2005-02-02 | 2006-05-21 | Asia Optical Co Inc | Optical system of a projector display and a projector device equipped with this optical system |
| CN101140406B (en) * | 2006-09-05 | 2012-03-21 | 三洋科技中心(深圳)有限公司 | Projection device and image synthesizing device thereof |
| CN101393312A (en) * | 2007-09-19 | 2009-03-25 | 鸿富锦精密工业（深圳）有限公司 | color wheel |
-
2015
- 2015-05-28 CN CN201510283197.9A patent/CN104880819B/en active Active
- 2015-11-26 TW TW104139607A patent/TWI610120B/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101589325A (en) * | 2006-12-04 | 2009-11-25 | 奥尔利康贸易股份公司（特吕巴赫） | Color wheel |
| CN103226283A (en) * | 2012-01-31 | 2013-07-31 | 鸿富锦精密工业（深圳）有限公司 | Color wheel device of projector |
| CN203721767U (en) * | 2013-11-25 | 2014-07-16 | 扬州吉新光电有限公司 | Phosphor color-wheel substrate with partitioned structures |
| CN103900035A (en) * | 2014-02-25 | 2014-07-02 | 扬州吉新光电有限公司 | Fluorescent powder color wheel base plate with demarcation structures and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI610120B (en) | 2018-01-01 |
| CN104880819A (en) | 2015-09-02 |
| TW201642011A (en) | 2016-12-01 |
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