CN107290917A - Laser light adjusting system - Google Patents
Laser light adjusting system Download PDFInfo
- Publication number
- CN107290917A CN107290917A CN201610204487.4A CN201610204487A CN107290917A CN 107290917 A CN107290917 A CN 107290917A CN 201610204487 A CN201610204487 A CN 201610204487A CN 107290917 A CN107290917 A CN 107290917A
- Authority
- CN
- China
- Prior art keywords
- laser
- polaroid
- luminance patterns
- circuit
- electrically connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
- G02B26/0833—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/10—Scanning systems
- G02B26/105—Scanning systems with one or more pivoting mirrors or galvano-mirrors
-
- 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
Abstract
The invention discloses a kind of laser light adjusting system, it can sense the ambient light sensor of external environment light intensity including one, one can receive the luminance patterns decision-making circuit and a brightness control module of the ambient light sensor signal, the brightness control module includes an intednsity circuit, one drive motor and a polaroid, the luminance patterns decision-making circuit, which is received, exports a mode signal to the brightness control module after the signal of the ambient light sensor, the intednsity circuit controls the drive motor according to the mode signal, make drive motor polaroid rotation, one laser coordinates the power of external environment light to be projected out the image of corresponding brightness by the polaroid.
Description
Technical field
It is espespecially a kind of by rotatable polaroid the present invention relates to a kind of laser light adjusting system, according to
The light adjusting system for the image that external environment light luminance adjustment laser projection goes out.
Background technology
U.S. Patent number US8848289 discloses a kind of head mounted display, including a waveguide
(waveguide), an environment light polarizer, a wire grid polarizer and a diffraction lens；The ambient light
Polarizer can control the wire grid polarizer according to the change of ambient light, the image light for making the waveguide project
Degree has been adjusted, and its image further leads to the eyes that mirror enters user, user through the diffraction
It can be seen that its picture.
U.S. Patent number US8436952 discloses a kind of HUD, including one or more optics
Element, its boot environment light source enters a mixed cell, and for being homogenized light, a condensing unit receives equal
Change the light of light mixture and condensation and be output to a polarizer, shown using the polarization components with reflective
As component projection modulation light forms image on the windshield.
U.S. Patent number US7203005 discloses a kind of HUD, including a polarization image is thrown
Injection device, a diffuser and a polarization reflector element, using polarizer, projection screen with
And HUD systems improve the brightness of display, make the display have the height of low haze and windshield
Light transmittance, can be applicable to windshield and similar application on.
But, display of the prior art is the strong and weak adjustment brightness by control electric current, in imaging
Quality on it is still defective, the brightness and image contrast that display is presented is not good, makes user
Do not feel well, it can be seen that, how to solve the above problems, as those skilled in the art desire most ardently research
And the direction solved.
The content of the invention
In view of this, inventor is according to the manufacturing development and design experiences for being engaged in Related product for many years,
Designed in detail for above-mentioned target after being assessed with discretion, the present invention for really having practicality is obtained eventually.
It is an object of the invention to provide a kind of laser light adjusting system, including：One image processor；One
Ambient light sensor, detects an environmental light brightness；One luminance patterns decision-making circuit, is electrically connected with the ring
Border optical sensor simultaneously exports a luminance patterns signal；One laser drive circuit, is electrically connected with the image
Manage device；One LASER Light Source, is electrically connected with the laser drive circuit and exports a laser；One brilliance control
Module, is electrically connected with the luminance patterns decision-making circuit, and the wherein brightness control module includes a brightness control
Circuit processed, a drive motor and a polaroid, the intednsity circuit is according to the luminance patterns signal
The drive motor is controlled, the drive motor polaroid is rotated, and the polaroid controls the laser
One beam intensity；One scan mirror drive circuit, is electrically connected with the image processor；And one is micro electronmechanical
Scanning mirror, is controlled by the scanning mirror drive circuit and scanned and the laser of reflection from the polaroid,
A wherein maximum of the luminance patterns signal deciding beam intensity.
In one embodiment of this invention, a rotational angle of the luminance patterns signal deciding polaroid.
In one embodiment of this invention, the micro electromechanical scanning mirror is MEMS.
In one embodiment of this invention, the micro electromechanical scanning mirror is by the laser projection a to diffuser
It is projected to an image colligator again afterwards, imaging afterwards comes out.
Present invention also offers another laser light adjusting system, it includes：
One image processor；
One ambient light sensor, detects an environmental light brightness；
One luminance patterns decision-making circuit, is electrically connected with the ambient light sensor and exports luminance patterns letter
Number；
One laser drive circuit, is electrically connected with the image processor；
One LASER Light Source, is electrically connected with the laser drive circuit and exports a laser；
One scan mirror drive circuit, is electrically connected with the image processor；
One micro electromechanical scanning mirror, is scanned by scanning mirror drive circuit control and reflects the laser；
And
One brightness control module, is electrically connected to the luminance patterns decision-making circuit, the wherein brilliance control
Module includes an intednsity circuit, a drive motor and a polaroid, wherein brilliance control electricity
Road controls the drive motor according to the luminance patterns signal, and the drive motor polaroid is rotated,
The polaroid controls a beam intensity of the laser, wherein the luminance patterns signal deciding beam intensity
A maximum.
In one embodiment of this invention, a rotation of the plurality of luminance patterns signal deciding polaroid
Angle.
In one embodiment of this invention, the micro electromechanical scanning mirror is MEMS.
In one embodiment of this invention, the brightness control module is by the laser projection a to diffuser
It is projected to an image colligator again afterwards, imaging afterwards comes out.
Brief description of the drawings
Fig. 1 is schematic diagram of the invention；
Fig. 2 is circuit process block diagram of the invention；
Fig. 3 is the circuit process block diagram of the embodiment of the present invention one；
Fig. 4 is the circuit process block diagram of the embodiment of the present invention two；
Fig. 5 is the circuit process block diagram of the embodiment of the present invention three.
Description of reference numerals：110- ambient light sensors；120- luminance patterns decision-making circuits；130- brightness
Control module；131- intednsity circuits；132- drive motors；133- polaroids；150- laser lights
Source；170- image processors；180- laser drive circuits；190- scanning mirror drive circuits；210- microcomputers
Electric scanning mirror；300- diffusers；400- image colligators；S100- light sensation induction signals；S200- patterns are believed
Number；The strong ambient light patterns of S210-；The weak ambient light patterns of S220-；The signals of S310- first；S320-
Binary signal；The signals of S330- the 3rd；L110- laser；L110 '-laser；L120- projecting beams；L121-
Strong projecting beam；The weak projecting beams of L122-.
Embodiment
For ease of auditor to the purpose of the present invention, shape, constructing apparatus feature and its effect, do more
Further insight hereby coordinates schema with understanding for embodiment, describes in detail as follows.
As shown in Figure 1 and Figure 2, the invention provides a kind of laser light adjusting system, including an ambient light
Sensor 110, can Auto-Sensing external environment light brightness and export a light sensation induction signal S100 extremely
One luminance patterns decision-making circuit 120, the luminance patterns decision-making circuit 120 is according to the light sensation induction signal
S100 exports an at least mode signal S200 to a brightness control module 130, the brightness control module
130 include：One intednsity circuit 131, a drive motor 132 and a polaroid 133, this is bright
Degree control circuit 131 controls the drive motor 131 after receiving mode signal S200, that is, drives therewith
The polaroid 133 being electrically connected with is rotated, and according to mode signal S200, the drive motor 132 is driven
Move the polaroid 133 and turn to different directions；One image processor 170, the image processor 170
One first signal S310 is exported when being activated simultaneously to a laser drive circuit 180 and one second letter
Number S320 receives first signal to one scan mirror drive circuit 190, the laser drive circuit 180
Then output current starts a LASER Light Source 150 after S310, makes the LASER Light Source 150 export an image
Laser L110 on the polaroid 133, by the drive motor 132 rotate the polaroid 133 to
Different angles, the polaroid 133 receives the projecting beam that laser L110 projects varying strength
L120, projecting beam L120 input a micro electromechanical scanning mirror 210, the micro electromechanical scanning mirror 210
Can be MEMS, while the scanning mirror drive circuit 190 is exported after secondary signal S320 is received
One the 3rd drive signal S330, will by the micro electromechanical scanning mirror 210 to the micro electromechanical scanning mirror 210
Projecting beam L120 is exported to a diffuser 300, passes through the diffuser 300 reduction projection shadow
The hot spot of picture and by image output to an image colligator 400, further utilizes the image colligator
400 again come out image visualization, and the high-high brightness of image is controlled by mode signal, for example system
Comprising strong mode signal and during two kinds of weak mode signal, in the case of weak mode signal, image is most
Big brightness is the half for the peak signal that system can be provided.
Embodiment one
As shown in figure 3, under strong light environment, its light source of the Auto-Sensing of ambient light sensor 110 is strong
Degree, exports induced signal S100 to the luminance patterns decision-making circuit 120, the luminance patterns determine electricity
Road 120 exports the last one ambient light patterns S210 to the brightness control module 130, passes through the brilliance control
Circuit 131 controls the drive motor 132, and the drive motor 132 turns to the polaroid 133 pair
The angle answered, the laser L110 of the LASER Light Source 150 output exports one by the polaroid 133
Strong projecting beam L121 is then passed through the diffuser 300 and the image to the micro electromechanical scanning mirror 210
Colligator 400 shows image, make user it is external it is bright and clear in the case of be still clearly visible projection
Information out.
Embodiment two
As shown in figure 4, when ambient is not enough, its light of the Auto-Sensing of ambient light sensor 110
Source strength, exports induced signal S100 to the luminance patterns decision-making circuit 120, the luminance patterns are determined
Determine circuit 120 and export a weak ambient light patterns S220 to the brightness control module 130, pass through the brightness
Control circuit 131 to control the drive motor 132, make the drive motor 132 by 133 turns of the polaroid
Move to corresponding angle, the laser L110 of the LASER Light Source 150 output passes through the polaroid 133
A weak projecting beam L122 is exported to the micro electromechanical scanning mirror 210, be then passed through the diffuser 300 with
The image colligator 400 shows image, makes user be unlikely to feel in the case of external insufficient light
Image is too dazzling.
Embodiment three
As shown in figure Fig. 5, the light adjusting system that the present invention is provided can be another state, the micro electromechanical scanning
Mirror 210 may be provided at before the brightness control module 130, and the micro electromechanical scanning mirror 210 receives the laser
The laser L110 that light source 150 is exported, and the 3rd signal that the scanning mirror drive circuit 190 is exported
S330, and another laser L110 ' is exported to the brightness control module 130, the brightness control module 130
The laser L110 ' and the luminance patterns for receiving the micro electromechanical scanning mirror 210 output simultaneously determine electricity
The mode signal S200 that road 120 is sent, the intednsity circuit 131 is believed according to the pattern of reception
Number S200 controls the drive motor 132, makes the drive motor 132 rotate the polaroid 133 to correspondence
The laser L110 ' of angle, then the micro electromechanical scanning mirror 210 output, passes through the polaroid 133
Projecting beam L120 is exported to the diffuser 300, passes through the diffuser 300 reduction projection shadow
The hot spot of picture, and by image output to an image colligator 400, further combined using the image
Device 400 again comes out image visualization.
Further, the present invention can be used in the HUD of automobile, to sense car external environment
The power of light, the brightness of adjust automatically HUD imaging, no matter daytime or evening, display
The brightness of image of device is all moderate, and driver will not be made to feel dazzling or unclear.
The foregoing is merely illustrative of the preferred embodiments of the present invention, when can not limit implementation of the present invention with this
Scope；Therefore, all simple equivalent changes made according to scope of the invention as claimed and description
Change with modifying, still should all belong in protection scope of the present invention.
Claims (8)
1. a kind of laser light adjusting system, it is characterised in that including：
One image processor；
One ambient light sensor, detects an environmental light brightness；
One luminance patterns decision-making circuit, is electrically connected with the ambient light sensor and exports luminance patterns letter
Number；
One laser drive circuit, is electrically connected with the image processor；
One LASER Light Source, is electrically connected with the laser drive circuit and exports a laser；
One brightness control module, is electrically connected with the luminance patterns decision-making circuit, wherein the brilliance control mould
Block include an intednsity circuit, a drive motor and a polaroid, the intednsity circuit according to
The luminance patterns signal controls the drive motor, and the drive motor polaroid is rotated, the polarisation
Piece controls a beam intensity of the laser；
One scan mirror drive circuit, is electrically connected with the image processor；And
One micro electromechanical scanning mirror, is controlled by the scanning mirror drive circuit and scanning and reflection are inclined from this
One maximum of the laser of mating plate, wherein the luminance patterns signal deciding beam intensity.
2. laser light adjusting system according to claim 1, it is characterised in that the luminance patterns are believed
Number determine a rotational angle of the polaroid.
3. laser light adjusting system according to claim 1, it is characterised in that the micro electromechanical scanning
Mirror is MEMS.
4. laser light adjusting system according to claim 1, it is characterised in that the micro electromechanical scanning
Mirror will be projected to an image colligator again after on the laser projection a to diffuser, and imaging afterwards comes out.
5. a kind of laser light adjusting system, it is characterised in that including：
One image processor；
One ambient light sensor, detects an environmental light brightness；
One luminance patterns decision-making circuit, is electrically connected with the ambient light sensor and exports luminance patterns letter
Number；
One laser drive circuit, is electrically connected with the image processor；
One LASER Light Source, is electrically connected with the laser drive circuit and exports a laser；
One scan mirror drive circuit, is electrically connected with the image processor；
One micro electromechanical scanning mirror, is scanned by scanning mirror drive circuit control and reflects the laser；
And
One brightness control module, is electrically connected to the luminance patterns decision-making circuit, the wherein brilliance control
Module includes an intednsity circuit, a drive motor and a polaroid, wherein brilliance control electricity
Road controls the drive motor according to the luminance patterns signal, and the drive motor polaroid is rotated,
The polaroid controls a beam intensity of the laser, wherein the luminance patterns signal deciding beam intensity
A maximum.
6. laser light adjusting system according to claim 5, it is characterised in that the plurality of brightness mould
One rotational angle of the formula signal deciding polaroid.
7. laser light adjusting system according to claim 6, it is characterised in that the micro electromechanical scanning
Mirror is MEMS.
8. laser light adjusting system according to claim 6, it is characterised in that the brilliance control mould
Block will be projected to an image colligator again after on the laser projection a to diffuser, and imaging afterwards comes out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610204487.4A CN107290917A (en) | 2016-04-01 | 2016-04-01 | Laser light adjusting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610204487.4A CN107290917A (en) | 2016-04-01 | 2016-04-01 | Laser light adjusting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107290917A true CN107290917A (en) | 2017-10-24 |
Family
ID=60086879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610204487.4A Withdrawn CN107290917A (en) | 2016-04-01 | 2016-04-01 | Laser light adjusting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107290917A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1598643A (en) * | 2003-09-19 | 2005-03-23 | 精工爱普生株式会社 | Image recording method,recording device,recording media,display method and device |
| CN101344643A (en) * | 2007-07-13 | 2009-01-14 | 鸿富锦精密工业（深圳）有限公司 | Optical system for liquid crystal projector |
| CN103650021A (en) * | 2011-07-06 | 2014-03-19 | 日本精机株式会社 | Heads-up display device |
| TW201516475A (en) * | 2013-10-29 | 2015-05-01 | Hamamatsu Photonics Kk | Display device |
-
2016
- 2016-04-01 CN CN201610204487.4A patent/CN107290917A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1598643A (en) * | 2003-09-19 | 2005-03-23 | 精工爱普生株式会社 | Image recording method,recording device,recording media,display method and device |
| CN101344643A (en) * | 2007-07-13 | 2009-01-14 | 鸿富锦精密工业（深圳）有限公司 | Optical system for liquid crystal projector |
| CN103650021A (en) * | 2011-07-06 | 2014-03-19 | 日本精机株式会社 | Heads-up display device |
| TW201516475A (en) * | 2013-10-29 | 2015-05-01 | Hamamatsu Photonics Kk | Display device |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171024 |