CN207460393U - A kind of laser projection system - Google Patents
A kind of laser projection system Download PDFInfo
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- CN207460393U CN207460393U CN201721666507.6U CN201721666507U CN207460393U CN 207460393 U CN207460393 U CN 207460393U CN 201721666507 U CN201721666507 U CN 201721666507U CN 207460393 U CN207460393 U CN 207460393U
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- laser
- brightness
- module
- control module
- projection system
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Abstract
The utility model discloses a kind of laser projection system, laser module, scan module and the brightness detection module being electrically connected including control module and with the control module；The brightness detection module is used to detect environmental light brightness and export to the control module；The control module is used to obtain laser-driven signal according to the display signal and the environmental light brightness of input, is transmitted to the laser module, and obtains scanning drive signal according to the display signal, is transmitted to the scan module；The laser module is used to emit laser beam to the scan module according to the laser-driven signal；The scan module is used to reflect the laser beam according to the scanning drive signal and carries out scanning imagery, and the utility model according to the brightness of image of the automatic brightness adjustment projection imaging of ambient light can prevent from that human eye is caused to damage.
Description
Technical field
The utility model is related to Color Laser Projection Technology fields.More particularly, to a kind of laser projection system.
Background technology
Color Laser Projection Technology refers to using three color laser of micro electronmechanical two-dimentional miniscanning face mirror and RGB (RGB), to swash
The technology that optical scanning mode is imaged.With the development of Color Laser Projection Technology, the function of laser-projector is gradually improved.It is but existing
The projection brightness of some laser-projectors is kept constant, and the projection brightness of laser-projector can not adapt to the brightness of ambient light automatically
Variation, when environmental light brightness is too high or too low, it is excessively bright or excessively dark to may result in the projection imaging picture of laser-projector, easily
User's eye is caused to damage, causes user inconvenient for use.
Accordingly, it is desirable to provide a kind of can prevent according to the laser projection system of the brightness adjust automatically brightness of image of ambient light
Only laser scanning imaging brightness is excessively bright or excessively dark compared with ambient light.
Utility model content
One of the utility model is designed to provide a kind of laser projection system, according to the brightness adjust automatically of ambient light
Brightness of image prevents laser scanning imaging brightness excessively bright or secretly causes user inconvenient for use excessively.
In order to achieve the above objectives, the utility model uses following technical proposals：
It is including control module and electric respectively with the control module the utility model discloses a kind of laser projection system
Laser module, scan module and the brightness detection module of connection；
The brightness detection module is used to detect environmental light brightness and export to the control module；
The control module is used to obtain laser-driven signal according to the display signal and the environmental light brightness of input, passes
The laser module is transported to, and scanning drive signal is obtained according to the display signal, is transmitted to the scan module；
The laser module is used to emit laser beam to the scan module according to the laser-driven signal；
The scan module is used to reflect the laser beam according to the scanning drive signal and carries out scanning imagery.
Preferably, the brightness detection module is brightness detector, the output terminal of the brightness detector and the control
Module is electrically connected.
Preferably, default standard environment brightness and standard environment brightness power are stored in the control module
Weight；
The control module is used for the environmental light brightness according to brightness detection module transmission, default standard environment light
Brightness and standard environment brightness weight obtain environmental light brightness weight.
Preferably, ratio and the environment bright of the environmental light brightness weight with the standard environment brightness weight
Degree is equal with the ratio of the standard environment brightness.
Preferably, the standard environment brightness weight is 1.
Preferably, the control module is demodulator.
Preferably, the laser module includes laser driver and the laser light source being electrically connected with laser driver；
The laser driver is electrically connected with the control module, receives the laser-driven signal and according to the laser
Drive signal controls the laser light source transmitting laser beam.
Preferably, the scan module includes scanner driver and the miniscanning instrument being electrically connected with scanner driver；
The scanner driver is electrically connected with the control module, receives the scanning drive signal and according to the scanning
Drive signal controls the miniscanning instrument to reflect the laser beam and carries out scanning imagery.
Preferably, the laser module and scan module are the multiple of identical quantity.
Preferably,
The laser projection system further comprises the button being electrically connected with the control module；
The control module is further used for the state pressed according to the button and the brightness detection module is controlled to open
Dynamic or closing.
The beneficial effects of the utility model are as follows：
The brightness detection module being electrically connected with control module is equipped in the laser projection system of the utility model, can detect ring
The brightness of border light, and the environmental light brightness detected is transmitted to the control module, control module is according to the environment detected
The ratio of brightness and default standard environment brightness obtains environmental light brightness weight, control module by the image of input, regard
The display signal such as frequency is converted to corresponding initial laser drive signal, and further initial laser is driven using environmental light brightness weight
Dynamic signal is weighted, and obtains laser-driven signal corresponding with environmental light brightness, which can control laser light
The shading value for the laser beam that source is sent, so as to adjust the brightness of image of scan module scanning imagery, the laser of the utility model
The brightness of image that optical projection system can be projected according to the variation adjust automatically of environmental light brightness, prevents ambient light excessively bright or excessively secretly to people
Eye causes to damage.
Description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is shown according to a kind of schematic diagram of laser projection system specific embodiment of the utility model；
Reference numeral：
1st, control module, 2, brightness detection module, 3, laser module, 4, scan module, 201, laser driver, 202, swash
Radiant, 301, scanner driver, 302, miniscanning instrument.
Specific embodiment
In order to illustrate more clearly of the utility model, the utility model is done into one with reference to preferred embodiments and drawings
The explanation of step.Similar component is indicated with identical reference numeral in attached drawing.It will be appreciated by those skilled in the art that below
Specifically described content is illustrative and be not restrictive, and should not limit the scope of protection of the utility model with this.
Fig. 1 is shown according to a kind of schematic diagram of laser projection system specific embodiment of the utility model.In the utility model,
Laser projection system include control module 1 and be electrically connected with the control module 1 laser module 3, scan module 4 and
Brightness detection module 2.
Wherein, the brightness detection module 2 can detect environmental light brightness and be transmitted to the environmental light brightness of detection in real time
The control module 1.
The control module 1 is electrically connected with external equipment, can be examined according to the display signal and brightness that external equipment inputs
It surveys the environmental light brightness that module 2 is transmitted and obtains laser-driven signal, be transmitted to laser module 3, and obtained according to the display signal
To scanning drive signal, the scan module 4 is transmitted to.The display signal can be the signals such as image or video.
The laser module 3 emits laser beam to the scan module 4, the scanning according to the laser-driven signal
Module 4 reflects the laser beam, and imaging is scanned according to the scanning drive signal.
The laser projection system of the utility model can detect environmental light brightness, comprehensive ring in real time by brightness detection module 2
Border brightness and the display signal of input obtain the laser-driven signal weighted according to environmental light brightness, so as to change laser module
The brightness of the laser beam of 3 transmittings reflects the laser beam by scan module 4 and projection imaging is, it can be achieved that according to environment
The picture brightness of brightness variation automatic adjustment projection imaging, prevents eyes of user fatigue or damage, and what raising user used relaxes
Appropriateness.
Be preferably carried out mode as one kind, in the present embodiment, laser projection system include demodulator and with the solution
Brightness detector, laser module 3 and the scan module 4 that device is adjusted to be electrically connected.The laser module 3 includes laser driver
201 and the laser light source 202 that is electrically connected with laser driver 201, the laser driver 201 be electrically connected with the demodulator.
The scan module 4 includes scanner driver 301 and the miniscanning instrument 302 being electrically connected with scanner driver 301, the scanning
Driver 301 is electrically connected with the demodulator.Laser driver 201 can control laser light source 202 to emit laser beam, miniature to sweep
Retouch instrument 302 be configured as can reflection laser light beam, and imaging is scanned under the control of scanner driver 301.
In the present embodiment, may include memory in the demodulator, for store default standard environment brightness and
Standard environment brightness weight, environmental light brightness that the demodulator is transmitted according to brightness detector, default standard environment light
Brightness and standard environment brightness weight obtain the environmental light brightness weight of real time environment light.
In the present embodiment, the demodulator is according to the environmental light brightness of detection and the ratio of the standard environment brightness to prestore
The corresponding luminance weights of ambient light detected in real time in proportion.Specifically, the environmental light brightness weight and institute can be set
It is equal with the ratio of the standard environment brightness with the environmental light brightness to state the ratio of standard environment brightness weight, according to
Pre-set standard environment brightness and its corresponding weight are the luminance weights of the ambient light detected in real time.
The standard environment brightness weight can preferably be set to 1, then when the environmental light brightness detected in real time is equal to or greatly
When standard environment brightness, the environmental light brightness weight of output is equal to or more than 1；When the environmental light brightness detected in real time is less than
During standard environment brightness, the environmental light brightness weight of output is 0~1.
In the present embodiment, under the conditions of standard environment brightness, the laser-driven signal of the demodulator output is defaulted as
The high-high brightness of laser, therefore, in the present embodiment, when environmental light brightness weight is more than 1, the laser of the demodulator output drives
The laser brightness of dynamic signal is always the high-high brightness.Certainly, the utility model is in practical application, also can be according to actual feelings
Condition flexibly sets the laser brightness that the laser-driven signal of demodulator output during standard environment brightness represents, so as to set
The value range of the laser brightness of obtained laser-driven signal is weighted further to limit the brightness of image scope of projection imaging.
In the present embodiment, the display signal that external equipment inputs is converted to original laser driving letter by the demodulator first
Number, then original laser drive signal is weighted using the environmental light brightness weight detected in real time, original laser is driven
Signal and the product of environmental light brightness weight are transmitted to laser module 3 as laser-driven signal, and adjustment laser module 3 emits
The brightness of laser beam so as to fulfill the purpose of the brightness of image according to environmental light brightness adjust automatically laser projection imaging, carries
The comfort level of high user's viewing, it is user-friendly.
In another embodiment of the utility model, the laser module 3 and scan module 4 that are electrically connected with the demodulator
Can be the multiple of identical quantity, so as to can realize the projected pictures of more miniscanning instrument 302 according to the brightness of ambient light from
Dynamic adjustment.
In another embodiment of the utility model, laser projection system is further provided with the control module 1 and is electrically connected
The button connect, the control module further can control the brightness detection module to start according to the state that the button is pressed
Or close, so that laser projection system can start according to the button operation of user or close automatic brightness adjustment function, with full
The different brightness regulation demand of sufficient user improves user experience.
Obviously, above-described embodiment of the utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to the embodiment of the utility model, for those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways, all embodiments can not be exhaustive here,
It is every to belong to obvious changes or variations that the technical solution of the utility model is extended out still in the utility model
The row of protection domain.
Claims (9)
1. a kind of laser projection system, which is characterized in that be electrically connected including control module and with the control module
Laser module, scan module and brightness detection module；
The brightness detection module is used to detect environmental light brightness and export to the control module；
The control module is used to obtain laser-driven signal according to the display signal and the environmental light brightness of input, is transmitted to
The laser module, and scanning drive signal is obtained according to the display signal, it is transmitted to the scan module；
The laser module is used to emit laser beam to the scan module according to the laser-driven signal；
The scan module is used to reflect the laser beam according to the scanning drive signal and carries out scanning imagery.
2. a kind of laser projection system according to claim 1, which is characterized in that the brightness detection module is visited for brightness
Device is surveyed, the output terminal of the brightness detector is electrically connected with the control module.
3. a kind of laser projection system according to claim 1, which is characterized in that be stored in the control module default
Standard environment brightness and standard environment brightness weight；
The control module is used for environmental light brightness, the default standard environment brightness transmitted according to the brightness detection module
And standard environment brightness weight obtains environmental light brightness weight.
4. a kind of laser projection system according to claim 3, which is characterized in that the environmental light brightness weight with it is described
The ratio of standard environment brightness weight is equal with the ratio of the standard environment brightness with the environmental light brightness.
A kind of 5. laser projection system according to claim 3 or 4, which is characterized in that the standard environment brightness power
Weight is 1.
6. a kind of laser projection system according to claim 1, which is characterized in that the control module is demodulator.
7. a kind of laser projection system according to claim 1, which is characterized in that the laser module includes Laser Driven
Device and the laser light source being electrically connected with laser driver；
The laser driver is electrically connected with the control module, receives the laser-driven signal and according to the Laser Driven
Signal controls the laser light source transmitting laser beam.
8. a kind of laser projection system according to claim 1, which is characterized in that the scan module includes turntable driving
Device and the miniscanning instrument being electrically connected with scanner driver；
The scanner driver is electrically connected with the control module, receives the scanning drive signal and according to the turntable driving
Signal controls the miniscanning instrument to reflect the laser beam and carries out scanning imagery.
9. a kind of laser projection system according to claim 1, which is characterized in that the laser projection system further wraps
Include the button being electrically connected with the control module；
The control module be further used for the state pressed according to the button control the brightness detection module start or
It closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721666507.6U CN207460393U (en) | 2017-12-04 | 2017-12-04 | A kind of laser projection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721666507.6U CN207460393U (en) | 2017-12-04 | 2017-12-04 | A kind of laser projection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207460393U true CN207460393U (en) | 2018-06-05 |
Family
ID=62276442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721666507.6U Active CN207460393U (en) | 2017-12-04 | 2017-12-04 | A kind of laser projection system |
Country Status (1)
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| CN (1) | CN207460393U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114584748A (en) * | 2022-03-17 | 2022-06-03 | 青岛海信激光显示股份有限公司 | Laser projection device, display method thereof and readable storage medium |
| CN115202140A (en) * | 2021-04-14 | 2022-10-18 | 中强光电股份有限公司 | Projection device and brightness control method thereof |
-
2017
- 2017-12-04 CN CN201721666507.6U patent/CN207460393U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115202140A (en) * | 2021-04-14 | 2022-10-18 | 中强光电股份有限公司 | Projection device and brightness control method thereof |
| US11917340B2 (en) | 2021-04-14 | 2024-02-27 | Coretronic Corporation | Projection device and brightness control method thereof |
| CN114584748A (en) * | 2022-03-17 | 2022-06-03 | 青岛海信激光显示股份有限公司 | Laser projection device, display method thereof and readable storage medium |
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Effective date of registration: 20201021 Address after: 261031 north of Yuqing street, east of Dongming Road, high tech Zone, Weifang City, Shandong Province (Room 502, Geer electronic office building) Patentee after: GoerTek Optical Technology Co.,Ltd. Address before: 266100 Qingdao, Laoshan District, North House Street investment service center room, Room 308, Shandong Patentee before: GOERTEK TECHNOLOGY Co.,Ltd. |