CN107085348A - A kind of Portable projector and its colimated light system - Google Patents
A kind of Portable projector and its colimated light system Download PDFInfo
- Publication number
- CN107085348A CN107085348A CN201710501632.XA CN201710501632A CN107085348A CN 107085348 A CN107085348 A CN 107085348A CN 201710501632 A CN201710501632 A CN 201710501632A CN 107085348 A CN107085348 A CN 107085348A
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- Prior art keywords
- light system
- collimation
- colimated light
- length
- led
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- 238000003384 imaging method Methods 0.000 claims abstract description 24
- 150000001875 compounds Chemical class 0.000 claims description 8
- 239000004568 cement Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000009738 saturating Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000005286 illumination Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2053—Intensity control of illuminating light
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/30—Collimators
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/208—Homogenising, shaping of the illumination light
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Projection Apparatus (AREA)
Abstract
The invention discloses a kind of colimated light system, including for making the first collimation lens set of LED beam collimation and relay optic for being converged to collimated light beam derived from first collimation lens set, one and only one described relay optic is cylindrical lens, and the length-width ratio of the length-width ratio imaging corresponding with display chip of the corresponding imaging of the cylindrical lens is identical.Above-mentioned colimated light system, it is identical by the length-width ratio that the length-width ratio of the corresponding imaging of cylindrical lens is arranged to imaging corresponding with display chip, so that when 1 to 1 LED light-emitting areas pass through colimated light system, when display chip is completely covered in LED image planes, as shown in Figure 2, enable to LED most of area covering of image planes on display chip, the area of dash area diminishes, and the utilization of light energy gets a promotion.In addition the invention also discloses a kind of Portable projector.
Description
Technical field
The present invention relates to projector's technical field, more particularly to a kind of Portable projector and its colimated light system.
Background technology
With projector equipment, role is more and more in life, and the field being applied to also can be more and more.It is more
Equipment need to be embedded in micro-projection device, this requirement to projection light machine also more and more higher, smaller, structure is more stepped up
Gather, more preferably, cost is lower for imaging effect.
Existing portable translucent ray machine, is that the characteristics of pursuing small volume, can use and compare on illumination path on the market
Small display chip, and mostly using light sources of the LED as ray machine.In illumination path, the collimated system of light beam that LED is sent
After be imaged onto display chip surface, reach the purpose of illumination.As shown in figure 1, the length-width ratio of LED light-emitting area is generally 1:1, and
The length-width ratio of display chip 2 is mostly 16：9, after LED light beam is collimated by colimated light system, in reimaging to display chip 2
When, to ensure projection, display chip must be completely covered in LED image planes 1, and existing colimated light system is entered using spherical lens
Row optic path, therefore the length-width ratio of LED image planes 1 is still 1:1, and then when display chip is completely covered in LED image planes, it is cloudy
The light energy of shadow part 3 can not be utilized and direct losses, cause the luminance raising of portable translucent ray machine to be restricted.
In summary, the problem of luminance raising for how solving portable translucent ray machine is restricted, it has also become this area
Technical staff's technical barrier urgently to be resolved hurrily.
The content of the invention
It is an object of the invention to provide a kind of Portable projector and its colimated light system, to lift portable translucent ray machine
Brightness.
To achieve these goals, the invention provides a kind of colimated light system, including for the beam collimation that makes LED
Collimating lens group and the relay optic for being converged to collimated light beam derived from first collimation lens set, have and only
It is cylindrical lens to have a relay optic, and the length-width ratio of the corresponding imaging of the cylindrical lens is corresponding with display chip
The length-width ratio of imaging is identical.
Preferably, the light beam entering surface of the cylindrical lens is cylinder, and the light beam export face of the cylindrical lens is aspheric
Face.
Preferably, it is described it is aspherical for plastic cement it is aspherical.
Preferably, first collimation lens set include the first sub- collimation lens set and with the described first sub- collimation lens set
Vertically disposed second sub- collimation lens set, the first sub- collimation lens set is used for after its corresponding LED beam collimation
The relay optic is imported through the refraction of the first level crossing, the second sub- collimation lens set is used for its corresponding LED light beam
After collimation the relay optic is imported through first level crossing reflection.
Preferably, the length-width ratio of the light-emitting area of the LED is 1:1, the length-width ratio of the corresponding image planes of the cylindrical lens is
16:9。
Preferably, the colimated light system is additionally included in the second collimation lens set set close to compound eye, second collimation
Lens group is used to that the compound eye will to be introduced directly into through the reflection of the second level crossing after its corresponding LED beam collimation.
Preferably, the display chip is DMD display chips.
Content is introduced compared to background technology, above-mentioned colimated light system, including for the first collimation of the beam collimation for making LED
Lens group and the relay optic for being converged to collimated light beam derived from the first collimation lens set, one and only one relaying
Eyeglass is cylindrical lens, and the length-width ratio of the length-width ratio imaging corresponding with display chip of the corresponding imaging of cylindrical lens is identical.
It is identical by the length-width ratio that the length-width ratio of the corresponding imaging of cylindrical lens is arranged to imaging corresponding with display chip so that when
1 to 1 LED light-emitting areas are after colimated light system, when display chip is completely covered in LED image planes, as shown in Fig. 2 enabling to
Most of area covering of LED image planes is on display chip, and the area of dash area diminishes, and the utilization of light energy is carried
Rise.
In addition, present invention also offers a kind of Portable projector, including colimated light system, wherein, the colimated light system is upper
State the colimated light system described by either a program.Because above-mentioned colimated light system has above-mentioned technique effect, with above-mentioned colimated light system
Portable projector also should have corresponding technique effect, will not be repeated here.
Brief description of the drawings
Fig. 1 is the colimated light system imaging schematic diagram of traditional Portable projector；
Fig. 2 is the colimated light system imaging schematic diagram of Portable projector provided in an embodiment of the present invention；
Fig. 3 is the structural representation of the colimated light system of Portable projector provided in an embodiment of the present invention；
Fig. 4 is the schematic cross-section for the light beam that relay optic provided in an embodiment of the present invention is conducted along Y-direction；
Fig. 5 is the schematic cross-section for the light beam that relay optic provided in an embodiment of the present invention is conducted in X direction.
In figure 1 above -5,
LED image planes 1, display chip 2, dash area 3, relay optic 4, the second collimation lens set 5, LED6, the first son
Collimation lens set 7, the second sub- collimation lens set 8, the first level crossing 9, the second level crossing 10, compound eye 11, field lens 12, imaging lens
13。
Embodiment
The core of the present invention is to provide a kind of Portable projector and its colimated light system, to lift portable translucent ray machine
Brightness.
In order that those skilled in the art more fully understands the technical scheme that provides of the present invention, below in conjunction with accompanying drawing and
The present invention is described in further detail for specific embodiment.
As Figure 2-3, a kind of colimated light system provided in an embodiment of the present invention, including for making LED6 beam collimation
First collimation lens set and the relay optic 4 for being converged to collimated light beam derived from the first collimation lens set, have and only
There is a relay optic 4 for cylindrical lens, and length-width ratio and the corresponding imaging of display chip 2 of the corresponding imaging of cylindrical lens
Length-width ratio is identical.Explanation is needed exist for, it can also be multiple that relay optic, which can be one,：When relay optic is one
When, the relay optic is cylindrical lens；When relay optic is multiple, has in relay optic and only one of which is cylindrical lens.
In addition it should be noted that above-mentioned display chip can be DMD display chips or those skilled in the art commonly use other
The display chip of species, such as chip of LCD, silicon base liquid crystal display chip etc..
Content, above-mentioned colimated light system, by the way that relay optic is designed into cylindrical lens, and post are introduced compared to background technology
The length-width ratio of the corresponding imaging of face lens is arranged to identical with the length-width ratio of the corresponding imaging of display chip 2 so that when 1 to 1
When LED light-emitting areas pass through colimated light system, when display chip 2 is completely covered in LED image planes 1, as shown in Fig. 2 enabling to LED's
Most of area covering of image planes is on display chip, and the area of dash area 3 diminishes, and the utilization of light energy gets a promotion.
In some more particular embodiments, the light beam entering surface of above-mentioned cylindrical lens is cylinder, the light of cylindrical lens
Beam export face is aspherical.By way of above-mentioned arrangement so that the imaging through cylindrical lens is more regular.It will be understood
Be can also be those skilled in the art commonly use other can change the lens of imaging scale, such as it is saturating using piano convex cylindrical
Mirror.And it is above-mentioned it is aspherical can plastic cement is aspherical or those skilled in the art commonly use other materials make
It is aspherical, such as Glass aspheric etc..
In some more particular embodiments, above-mentioned first collimation lens set include the first sub- collimation lens set 7 and with
The first sub- collimation lens set 8 of sub- collimation lens set 7 vertically disposed second, the first sub- collimation lens set 7 is used for its is corresponding
Relay optic 4 is imported through the refraction of the first level crossing 9 after LED6 beam collimation, the second sub- collimation lens set 8 is used to be corresponded to
LED6 beam collimation after through the first level crossing 9 reflection import relay optic 4.Of course, it should be understood that above-mentioned first is accurate
Straight lens group is arranged to the preferable examples that said structure is only the embodiment of the present invention, can also be that the first collimation lens set is only wrapped
The first sub- collimation lens set is included, only there is optical energy loss, so present invention preferably employs the first sub- collimation lens set and
The mode of two sub- collimation lens combinations, can also include the 3rd sub- collimation lens set, the 3rd sub- collimation lens set certainly
It is that position can be for will be refracted into relay optic through the first level crossing after its corresponding LED beam collimation
Three sub- collimation lens sets are symmetrical arranged with the second sub- collimation lens set on the first sub- collimation lens set.
In more particular embodiment, what is used due to the length-width ratio of conventional LED light-emitting area is mostly 1:1, and show
Show that chip mostly uses length-width ratio for 16 to 9 at present, therefore be preferably 16 by the length-width ratio of the corresponding image planes of above-mentioned cylindrical lens:
9.Of course, it should be understood that the above-mentioned length-width ratio by the corresponding image planes of cylindrical lens is 16:9 be only the embodiment of the present invention
Preferably illustrate, the length-width ratio of the imaging of corresponding cylindrical mirror according to the ratio situation of specific display chip, can also be selected
Example.
In addition, colimated light system is additionally included in the second collimation lens set 5 set close to compound eye 11, the second collimation lens set 5
For compound eye 11 will to be introduced directly into through the reflection of the second level crossing 10 after its corresponding LED6 beam collimation.By setting the second standard
Straight lens group so that the overall illuminating effect of colimated light system is more preferable.Pass through field lens 12 from light beam derived from compound eye 11, it is final to import
Imaging lens 13.
In addition, present invention also offers a kind of Portable projector, including colimated light system, wherein, the colimated light system is upper
State the colimated light system described by either a program.Because above-mentioned colimated light system has above-mentioned technique effect, with above-mentioned colimated light system
Portable projector also should have corresponding technique effect, will not be repeated here.
In order that those skilled in the art are better understood from the technical scheme that the present invention is provided, with reference to cylindrical lens pair
The conduction principle of parallel beam of light is simply illustrated：
As illustrated in figures 4-5, rectangular coordinate system is set up using the center line where the cylinder of cylindrical lens as Y-axis, it is accurate through first
When the collimated light beam that straight lens group collimation is obtained enters relay optic, after repeated eyeglass convergence, the Y-direction of the hot spot of formation
Length is A (as shown in Figure 4)；The length of the X-direction of the hot spot of formation is B, right during due to cylinder of the light beam Jing Guo relay optic
The X-direction of light beam has convergence effect, therefore, it is possible to cause A ＞ B, and then by the way that relay optic is arranged into cylindrical lens, passes through
Adjust relay optic light beam approaching face (cylinder) and light beam export face position relationship can the illumination to corresponding length-width ratio
Light beam.
Portable projector provided by the present invention and its colimated light system are described in detail above.Need explanation
It is that each embodiment in this specification is described by the way of progressive, what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar part mutually referring to.
It should also be noted that, herein, such as first and second or the like relational terms are used merely to one
Entity or operation make a distinction with another entity or operation, and not necessarily require or imply between these entities or operation
There is any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to contain
Lid nonexcludability is included, so that article or equipment including a series of key elements not only include those key elements, but also
Including other key elements being not expressly set out, or also include for this article or the intrinsic key element of equipment.Do not having
In the case of more limitations, the key element limited by sentence "including a ...", it is not excluded that including the article of above-mentioned key element
Or also there is other identical element in equipment.
Specific case used herein is set forth to the principle and embodiment of the present invention, and above example is said
The bright method and its core concept for being only intended to help to understand the present invention.It should be pointed out that for the ordinary skill of the art
For personnel, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention, these improvement
Also fallen into modification in the protection domain of the claims in the present invention.
Claims (8)
1. a kind of colimated light system, including the first collimation lens set for the beam collimation that makes LED (6) and for described first
The relay optic (4) that collimated light beam derived from collimation lens set is converged, it is characterised in that one and only one described relaying
Eyeglass (4) is cylindrical lens, and the length of the length-width ratio imaging corresponding with display chip (2) of the corresponding imaging of the cylindrical lens
Width is than identical.
2. colimated light system as claimed in claim 1, it is characterised in that the light beam entering surface of the cylindrical lens is cylinder, institute
It is aspherical to state the light beam export face of cylindrical lens.
3. colimated light system as claimed in claim 2, it is characterised in that it is described it is aspherical for plastic cement it is aspherical.
4. colimated light system as claimed in claim 1, it is characterised in that it is saturating that first collimation lens set includes the first son collimation
Microscope group (7) and with the described first sub- sub- collimation lens set (8) of collimation lens set (7) vertically disposed second, first son is accurate
Straight lens group (7) is used to that the relay lens will to be imported through the first level crossing (9) refraction after the beam collimation of its corresponding LED (6)
Piece (4), the second sub- collimation lens set (8) be used for by after the beam collimation of its corresponding LED (6) through first level crossing
(9) reflection imports the relay optic (4).
5. colimated light system as claimed in claim 1, it is characterised in that the length-width ratio of the light-emitting area of the LED (6) is 1:1, institute
The length-width ratio for stating the corresponding image planes of cylindrical lens is 16:9.
6. colimated light system as claimed in claim 1, it is characterised in that the colimated light system is additionally included in be set close to compound eye (11)
The second collimation lens set (5) put, second collimation lens set (5) is used to pass through after the beam collimation of its corresponding LED (6)
Second level crossing (10) reflection is introduced directly into the compound eye (11).
7. colimated light system as claimed in claim 1, it is characterised in that the display chip is DMD display chips.
8. a kind of Portable projector, including colimated light system, it is characterised in that the colimated light system is that claim 1-7 such as appoints
Colimated light system described in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710501632.XA CN107085348A (en) | 2017-06-27 | 2017-06-27 | A kind of Portable projector and its colimated light system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710501632.XA CN107085348A (en) | 2017-06-27 | 2017-06-27 | A kind of Portable projector and its colimated light system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107085348A true CN107085348A (en) | 2017-08-22 |
Family
ID=59606476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710501632.XA Pending CN107085348A (en) | 2017-06-27 | 2017-06-27 | A kind of Portable projector and its colimated light system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107085348A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113835283A (en) * | 2020-06-08 | 2021-12-24 | 宁波舜宇车载光学技术有限公司 | Projection display system and forming method thereof |
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| JP2000347291A (en) * | 1999-06-07 | 2000-12-15 | Seiko Epson Corp | Projection type display device |
| CN2685930Y (en) * | 2003-10-27 | 2005-03-16 | 翟金会 | Silicon-base microcrystal single chip type optical engine structure |
| CN101351745A (en) * | 2005-12-30 | 2009-01-21 | 3M创新有限公司 | Projection system with beam homogenizer |
| CN101424777A (en) * | 2008-11-27 | 2009-05-06 | 浙江金成科技发展有限公司 | Compact optical system of mini projector |
| CN201402362Y (en) * | 2009-04-24 | 2010-02-10 | 红蝶科技(深圳)有限公司 | High light-efficiency minitype projection optical engine |
| CN101666962A (en) * | 2009-09-29 | 2010-03-10 | 南阳市海科光电有限责任公司 | Minitype single-chip LCOS projection optical engine |
| CN101813290A (en) * | 2009-02-20 | 2010-08-25 | 红蝶科技(深圳)有限公司 | Tricolor semiconductor illuminator and minitype projection optical engine use same |
| CN102455581A (en) * | 2010-10-15 | 2012-05-16 | 前鼎光电股份有限公司 | Projecting apparatus provided with uniform illumination optical system |
| CN102455583A (en) * | 2010-10-18 | 2012-05-16 | 索尼公司 | Illumination device and display unit |
| CN206930890U (en) * | 2017-06-27 | 2018-01-26 | 深圳市点睛创视技术有限公司 | A kind of Portable projector and its colimated light system |
-
2017
- 2017-06-27 CN CN201710501632.XA patent/CN107085348A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000347291A (en) * | 1999-06-07 | 2000-12-15 | Seiko Epson Corp | Projection type display device |
| CN2685930Y (en) * | 2003-10-27 | 2005-03-16 | 翟金会 | Silicon-base microcrystal single chip type optical engine structure |
| CN101351745A (en) * | 2005-12-30 | 2009-01-21 | 3M创新有限公司 | Projection system with beam homogenizer |
| CN101424777A (en) * | 2008-11-27 | 2009-05-06 | 浙江金成科技发展有限公司 | Compact optical system of mini projector |
| CN101813290A (en) * | 2009-02-20 | 2010-08-25 | 红蝶科技(深圳)有限公司 | Tricolor semiconductor illuminator and minitype projection optical engine use same |
| CN201402362Y (en) * | 2009-04-24 | 2010-02-10 | 红蝶科技(深圳)有限公司 | High light-efficiency minitype projection optical engine |
| CN101666962A (en) * | 2009-09-29 | 2010-03-10 | 南阳市海科光电有限责任公司 | Minitype single-chip LCOS projection optical engine |
| CN102455581A (en) * | 2010-10-15 | 2012-05-16 | 前鼎光电股份有限公司 | Projecting apparatus provided with uniform illumination optical system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113835283A (en) * | 2020-06-08 | 2021-12-24 | 宁波舜宇车载光学技术有限公司 | Projection display system and forming method thereof |
| CN113835283B (en) * | 2020-06-08 | 2023-12-01 | 宁波舜宇车载光学技术有限公司 | Projection display system and forming method thereof |
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Application publication date: 20170822 |