CN102566220A - Protection system and method of projection device - Google Patents
Protection system and method of projection device Download PDFInfo
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- CN102566220A CN102566220A CN2010105966890A CN201010596689A CN102566220A CN 102566220 A CN102566220 A CN 102566220A CN 2010105966890 A CN2010105966890 A CN 2010105966890A CN 201010596689 A CN201010596689 A CN 201010596689A CN 102566220 A CN102566220 A CN 102566220A
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- projection
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- projection device
- device protective
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Abstract
The invention provides a protection system of a projection device, comprising an optical machine, a projection camera lens and a shell, wherein the shell is for containing the optical machine. The projection camera lens is mounted on the shell and is used for projecting an image. The protection system of the projection device further comprises a human body sensor and a control device. The human body sensor and the projection camera lens are arranged at the same side of the shell. The control device is arranged in the shell and is connected in series between the human body sensor and the optical machine. When the human body sensor senses that a human body exists between the protection system of the projection device and a projection screen, a triggering signal is sent to the control device. The control device is used for controlling the optical machine to stop emitting light or reduce the light-emitting power, so that the brightness of a projected light beam is reduced to a range within which eyes are not hurt. The invention further relates to a protection method of the projection device.
Description
Technical field
The present invention relates to a kind of projection arrangement, relate in particular to a kind of projection device protective system and guard method.
Background technology
Usually, laser projection device can be launched three laser of red, green, blue, and these three laser form single laser beam after mixing, and forms speckle.This laser beam is lined by line scan at a high speed on the zone of projection screen under the reflection of scanning reflection mirror, to form image.
Yet,, must apply the laser beam of high power levels in order to form the image of high brightness.For example, for per 25 lumens (RGB) on the screen, need the laser power of about 100m W.So high laser power can produce infringement to the people's of direct-view laser beam eyes.Not only let human eye feel uncomfortable, serious also can causing is blind.Therefore, projection arrangement becomes urgent problem to the active protection of human eye.
Summary of the invention
In view of above content, be necessary to provide a kind of projection device protective system and the guard method that can protect human eye.
A kind of projection device protective system, it comprises a ray machine, a projection lens, reaches a housing, and said housing is used to accommodate said ray machine.Said projection lens is installed on the said housing, is used for projected image.Said projection device protective system further comprises a human inductor, reaches a control device.Said human inductor and said projection lens homonymy are arranged on the said housing.Said control device is arranged in the said housing and is connected between said human inductor and the said ray machine.This human inductor senses when having human body to exist between a said projection device protective system and the projection screen, sends a trigger pip to said control device.Said control device is controlled said ray machine and is stopped luminous or the reduction luminous power, so that the beam brightness of projection is reduced to the scope that can not damage human eye.
A kind of projection arrangement guard method, it comprises the steps:
One projection device protective system is provided, and said projection device protective system is accepted the picture signal of extraneous input with the output projected image and with said projected to a projection screen;
Whether there is human body to exist between said projection device protective system of sensing and the projection screen;
If sense when having human body to exist between said projection device protective system and the projection screen, control said projection device protective system and reduce the projection luminous power, so that the laser beam brightness of projection is reduced to the scope that can not damage human eye.
Compared with prior art; The said human body sensor human body of projection device protective system of the present invention is between projection device protective system and projection screen the time; The control of said control device quits work said projection arrangement or projection power is reduced in the scope that human eye can bear, thereby realizes getting into the defencive function of people's eyes between the projection area.
Description of drawings
Fig. 1 is the schematic perspective view of projection device protective system of the present invention;
Fig. 2 is the structural representation of the ray machine of the projection device protective system among Fig. 1;
Fig. 3 is the flow chart of steps of projection arrangement guard method of the present invention.
The main element symbol description
Projection device protective system 100
Ray machine 10
Human inductor 30
Control device 40
Housing 50
Light-combining prism 14
Scanning reflection mirror 15
Light source drive part 16
Scanning reflection mirror drive division 17
Embodiment
To combine accompanying drawing below, the present invention will be done further detailed description.
Please consult Fig. 1 and Fig. 2 in the lump, be the functional block diagram of projection device protective system 100 of the present invention.This projection device protective system 100 comprises a ray machine 10, a projection lens 20, a human inductor 30, a control device 40 and a housing 50.Said housing 50 is used to accommodate said ray machine 10 and control device 40.Said projection lens 20 and human inductor 30 are arranged on the same side of said housing 50.
In this embodiment, said projection device protective system 100 is a miniature laser projector.Said ray machine 10 comprises a red laser source 11, a green laser source 12, a blue laser source 13, a light-combining prism 14, one scan catoptron 15, a light source drive part 16, one scan mirror drive portion 17 and a control part 18.Said light source drive part 16 is electrically connected to said red laser source 11, green laser source 12, blue laser source 13.Said light source drive part 16 is used to drive said red laser source 11, green laser source 12 and blue laser source 13 and sends red, green, blue look laser respectively.The said light microscopic portion 14 of closing is used to mix said red laser source 11, green laser source 12, blue laser source 13 emitted laser, forms speckle, and the laser that mixes is transferred to said scanning reflection mirror 15.Said scanning reflection mirror drive division 17 is used to drive said scanning reflection mirror 15 actions.Said scanning reflection mirror 15 is used to reflect laser to the said projection lens 20 from said light-combining prism 14, with this to a projection screen S projected image.Said control part 18 is electrically connected to said light source drive part 16 and said scanning reflection mirror drive division 17 simultaneously, is used to control said light source drive part 16 and said scanning reflection mirror drive division 17 synchronization actions.In this embodiment, said scanning reflection mirror 15 is MEMS (Micro Electro Mechanical System) catoptron.
Said human inductor 30 electrically connects with said control device 40, and whether this human inductor 30 is used for having between said projection device protective system 100 of sensing and the projection screen S human body to exist.In this embodiment, said human inductor 30 is an infrared human body induction device.Said human inductor 30 detects when having human body to exist between said projection device protective system 100 and the projection screen S, and said human inductor 30 sends a trigger pip to said control device 40.
Said control device 40 is connected to the control part 18 of said ray machine 10, and also promptly, said control device 40 is connected between the control part 18 and said human inductor 30 of said ray machine 10.When said control device 40 received the trigger pip that said human inductor 30 sends, said control device 40 sent one and controls signal to said control part 18.After said control part 18 receives the control signal that said control device 40 sends; Control the luminous power that said light source drive part 16 reduces said red laser source 11, green laser source 12 and blue laser source 13, so that the laser beam brightness of projection is reduced to the scope that can not damage human eye.In this embodiment, the laser beam brightness range that can not damage human eye is less than 15 lumens.Be appreciated that said projection device protective system 100 quits work when the luminous power of the said red laser of said light source drive part 16 reductions of said control part 18 controls source 11, green laser source 12 and blue laser source 13 is extremely zero.
See also Fig. 3, the steps flow chart of projection arrangement guard method of the present invention is following:
Step S101: a projection device protective system 100 is provided, and the picture signal that said projection device protective system 100 is accepted extraneous input is with the output projected image and with said projected to projection screen S;
Step S102: whether have human body to exist between said projection device protective system 100 of sensing and the projection screen S;
Step S103: have human body to exist between said projection device protective system 100 and the projection screen S if sense, control said projection device protective system 100 and reduce the projection luminous power, so that the laser beam brightness of projection is reduced to the scope that can not damage human eye.
Be appreciated that said projection device protective system 100 quits work when the projection luminous power of said projection device protective system 100 is reduced to zero.
The projection device protective system of embodiment of the present invention and guard method detect the relative position of people's face in drop shadow spread through the human face region pick-up unit; And after handling through signal processing apparatus; In said people's appearance the picture with the corresponding part of said human face region of position projection is shown as black, thereby realizes getting into the defencive function of people's eyes between the projection area.
It is understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion by technical conceive according to the present invention, and all these change the protection domain that all should belong to claim of the present invention with distortion.
Claims (7)
1. projection device protective system; It comprises a ray machine, a projection lens, reaches a housing; Said housing is used to accommodate said ray machine, and said projection lens is installed on the said housing, is used for projected image; It is characterized in that: said projection device protective system further comprises a human inductor, reaches a control device; Said human inductor be arranged on the said housing and with said projection lens homonymy, said control device is arranged in the said housing and is connected between said human inductor and the said ray machine, this human inductor senses when having human body to exist between a said projection device protective system and the projection screen; Send a trigger pip to said control device, said control device is controlled said its luminous power of ray machine reduction can not damage human eye to the beam brightness of said projection scope.
2. projection device protective system as claimed in claim 1; It is characterized in that; Said ray machine comprises a red laser source, a green laser source, a blue laser source, a light-combining prism, reaches the one scan catoptron; The said light microscopic portion of closing is used to mix said red laser source, green laser source, blue laser source emitted laser; And the laser that mixes transferred to said scanning reflection mirror, said scanning reflection mirror is used to reflect laser to the said projection lens from said light-combining prism, with this to said projection screen projected image.
3. projection device protective system as claimed in claim 2; It is characterized in that; Said ray machine further comprises a light source drive part and one scan mirror drive portion; Said light source drive part is used to drive said red laser source, green laser source and blue laser source and sends and send red, green, blue look laser respectively, and said scanning reflection mirror drive division is used to drive said scanning reflection mirror action.
4. projection device protective system as claimed in claim 3; It is characterized in that; Said ray machine further comprises a control part; Said control part is electrically connected to said light source drive part and said scanning reflection mirror drive division simultaneously, is used to control said light source drive part and said scanning reflection mirror drive division synchronization action.
5. projection device protective system as claimed in claim 2 is characterized in that, said scanning reflection mirror is the MEMS catoptron.
6. projection device protective system as claimed in claim 2 is characterized in that, said human inductor is an infrared human body induction device.
7. projection arrangement guard method, it comprises the steps:
One projection device protective system is provided, and said projection device protective system is accepted the picture signal of extraneous input with the output projected image and with said projected to a projection screen;
Whether there is human body to exist between said projection device protective system of sensing and the projection screen;
If sense when having human body to exist between said projection device protective system and the projection screen, control said projection device protective system and reduce the projection luminous power, so that the laser beam brightness of projection is reduced to the scope that can not damage human eye.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010596689.0A CN102566220B (en) | 2010-12-20 | 2010-12-20 | Projection device protective system and guard method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010596689.0A CN102566220B (en) | 2010-12-20 | 2010-12-20 | Projection device protective system and guard method |
Publications (2)
| Publication Number | Publication Date |
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| CN102566220A true CN102566220A (en) | 2012-07-11 |
| CN102566220B CN102566220B (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010596689.0A Expired - Fee Related CN102566220B (en) | 2010-12-20 | 2010-12-20 | Projection device protective system and guard method |
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| CN (1) | CN102566220B (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308170A (en) * | 2013-07-03 | 2013-09-18 | 河北伊诺光学科技有限公司 | Handheld Raman spectrum analyzer |
| CN103576428A (en) * | 2012-08-02 | 2014-02-12 | 建兴电子科技股份有限公司 | Laser projection system with security protection mechanism |
| CN103576431A (en) * | 2013-11-20 | 2014-02-12 | 巴可伟视(北京)电子有限公司 | Method and system device applied to using field of high-brightness laser projection machine and used for protecting human eyes |
| CN104598034A (en) * | 2015-02-09 | 2015-05-06 | 联想(北京)有限公司 | Information processing method and information processing equipment |
| CN104698727A (en) * | 2015-03-24 | 2015-06-10 | 海信集团有限公司 | Human body protection method and device for laser projection device and laser projection device |
| CN104871084A (en) * | 2012-12-23 | 2015-08-26 | 苹果公司 | Adaptive projector |
| CN105959659A (en) * | 2016-04-28 | 2016-09-21 | 乐视控股（北京）有限公司 | Method for realizing projector adaptive adjustment and projector |
| CN106687850A (en) * | 2014-09-11 | 2017-05-17 | 微视公司 | Scanning laser planarity detection |
| CN107295320A (en) * | 2017-08-07 | 2017-10-24 | 上海青橙实业有限公司 | The control method and device of projection terminal |
| CN109031868A (en) * | 2018-07-26 | 2018-12-18 | 漳州万利达科技有限公司 | A kind of ultrashort burnt table top projectors with eye protection function |
| CN109884850A (en) * | 2017-12-06 | 2019-06-14 | 深圳光峰科技股份有限公司 | Projection device |
| CN110632819A (en) * | 2018-06-21 | 2019-12-31 | 青岛海尔多媒体有限公司 | Projection equipment and projection screen installation method |
| WO2020010857A1 (en) * | 2018-07-12 | 2020-01-16 | 深圳光峰科技股份有限公司 | Human sensing system for electronic device and electronic device |
| WO2020253387A1 (en) * | 2019-06-20 | 2020-12-24 | 青岛海信激光显示股份有限公司 | Projection method and device |
| WO2021114965A1 (en) * | 2019-12-13 | 2021-06-17 | 深圳光峰科技股份有限公司 | Projection display control method and device, and projection system |
| CN112995618A (en) * | 2019-12-02 | 2021-06-18 | 海信视像科技股份有限公司 | Laser projection apparatus and control method |
| CN113296339A (en) * | 2020-02-24 | 2021-08-24 | 青岛海尔多媒体有限公司 | Method and device for protecting eyes of laser projection equipment and laser projection equipment |
| WO2021233068A1 (en) * | 2020-05-18 | 2021-11-25 | 青岛海信激光显示股份有限公司 | Projection device and field of view adjustment method therefor |
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| CN1735172A (en) * | 2004-08-04 | 2006-02-15 | 精工爱普生株式会社 | Projector |
| CN101422048A (en) * | 2006-04-11 | 2009-04-29 | 微视公司 | Integrated photonics module and devices using integrated photonics modules |
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Cited By (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103576428A (en) * | 2012-08-02 | 2014-02-12 | 建兴电子科技股份有限公司 | Laser projection system with security protection mechanism |
| CN103576428B (en) * | 2012-08-02 | 2015-11-25 | 光宝科技股份有限公司 | There is the laser projection system of safety protecting mechanism |
| CN104871084A (en) * | 2012-12-23 | 2015-08-26 | 苹果公司 | Adaptive projector |
| CN104871084B (en) * | 2012-12-23 | 2016-08-17 | 苹果公司 | Self adaptation projector |
| CN103308170B (en) * | 2013-07-03 | 2015-04-15 | 河北伊诺光学科技有限公司 | Handheld Raman spectrum analyzer |
| CN103308170A (en) * | 2013-07-03 | 2013-09-18 | 河北伊诺光学科技有限公司 | Handheld Raman spectrum analyzer |
| CN103576431A (en) * | 2013-11-20 | 2014-02-12 | 巴可伟视(北京)电子有限公司 | Method and system device applied to using field of high-brightness laser projection machine and used for protecting human eyes |
| CN103576431B (en) * | 2013-11-20 | 2016-03-23 | 巴可伟视(北京)电子有限公司 | A kind of high brightness laser projector that is applied to uses on-the-spot method and system device human eye being implemented to protection |
| CN106687850A (en) * | 2014-09-11 | 2017-05-17 | 微视公司 | Scanning laser planarity detection |
| CN106687850B (en) * | 2014-09-11 | 2020-05-01 | 微视公司 | Scanning laser planarity detection |
| US9848175B2 (en) | 2015-02-09 | 2017-12-19 | Lenovo (Beijing) Co., Ltd. | Projection method and electronic device |
| CN104598034B (en) * | 2015-02-09 | 2019-03-29 | 联想(北京)有限公司 | Information processing method and information processing equipment |
| CN104598034A (en) * | 2015-02-09 | 2015-05-06 | 联想(北京)有限公司 | Information processing method and information processing equipment |
| CN104698727A (en) * | 2015-03-24 | 2015-06-10 | 海信集团有限公司 | Human body protection method and device for laser projection device and laser projection device |
| WO2016149983A1 (en) * | 2015-03-24 | 2016-09-29 | 海信集团有限公司 | Human body protecting method and apparatus for laser projection device, and laser projection device |
| CN105959659A (en) * | 2016-04-28 | 2016-09-21 | 乐视控股（北京）有限公司 | Method for realizing projector adaptive adjustment and projector |
| CN107295320A (en) * | 2017-08-07 | 2017-10-24 | 上海青橙实业有限公司 | The control method and device of projection terminal |
| CN109884850B (en) * | 2017-12-06 | 2021-08-24 | 深圳光峰科技股份有限公司 | Projection device |
| CN109884850A (en) * | 2017-12-06 | 2019-06-14 | 深圳光峰科技股份有限公司 | Projection device |
| CN110632819A (en) * | 2018-06-21 | 2019-12-31 | 青岛海尔多媒体有限公司 | Projection equipment and projection screen installation method |
| WO2020010857A1 (en) * | 2018-07-12 | 2020-01-16 | 深圳光峰科技股份有限公司 | Human sensing system for electronic device and electronic device |
| CN109031868A (en) * | 2018-07-26 | 2018-12-18 | 漳州万利达科技有限公司 | A kind of ultrashort burnt table top projectors with eye protection function |
| CN109031868B (en) * | 2018-07-26 | 2020-09-22 | 漳州万利达科技有限公司 | Ultrashort-focus desktop projector with eye protection function |
| WO2020253387A1 (en) * | 2019-06-20 | 2020-12-24 | 青岛海信激光显示股份有限公司 | Projection method and device |
| US11829057B2 (en) | 2019-06-20 | 2023-11-28 | Hisense Laser Display Co., Ltd | Projection method and projection apparatus |
| CN112995618A (en) * | 2019-12-02 | 2021-06-18 | 海信视像科技股份有限公司 | Laser projection apparatus and control method |
| WO2021114965A1 (en) * | 2019-12-13 | 2021-06-17 | 深圳光峰科技股份有限公司 | Projection display control method and device, and projection system |
| CN113296339A (en) * | 2020-02-24 | 2021-08-24 | 青岛海尔多媒体有限公司 | Method and device for protecting eyes of laser projection equipment and laser projection equipment |
| WO2021233068A1 (en) * | 2020-05-18 | 2021-11-25 | 青岛海信激光显示股份有限公司 | Projection device and field of view adjustment method therefor |
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