CN201689264U - Projecting system - Google Patents
Projecting system Download PDFInfo
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- CN201689264U CN201689264U CN2010201853174U CN201020185317U CN201689264U CN 201689264 U CN201689264 U CN 201689264U CN 2010201853174 U CN2010201853174 U CN 2010201853174U CN 201020185317 U CN201020185317 U CN 201020185317U CN 201689264 U CN201689264 U CN 201689264U
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- light source
- driving circuit
- micro electronmechanical
- detecting
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Abstract
The utility model discloses a projecting system, which comprises a detecting light source, a light source driving circuit, a scanning unit, a scanning unit driving circuit, at least one sensor and a controller. The light source driving circuit is used for driving the detecting light source; the scanning unit is provided with a microcomputer electric lens and used for forming a detecting area after receiving and transmitting light of the detecting light source; the scanning unit driving circuit is used for driving the microcomputer electric lens; the sensor is arranged inside the detecting area and used for receiving light transmitted by the scanning unit and generating feedback signals according to the input condition of the light; and the controller is used for controlling the light source driving circuit and the scanning unit driving circuit and outputting detecting results according to the received feedback signals. The projecting system can detect the running condition of the microcomputer electric lens by the aid of mutual action of the detecting light source, the microcomputer electric lens, the sensor and the controller, thereby improving use safety and avoiding fire disasters or burning.
Description
Technical field
The utility model relates to a kind of optical projection system, relates in particular to a kind of optical projection system that improves safety in utilization.
Background technology
A kind of existing optical projection system that can be applicable in the electronic products such as mobile phone, personal digital assistant, Portable projector comprises a projection imaging light source, a light source driving circuit, one scan unit, one scan cell driving circuit and a controller.Described scanning element has the micro electronmechanical eyeglass of reciprocally swinging back and forth.When mobile phone, personal digital assistant, portable projector etc. are in unlatching or self check state, the controller gated sweep cell driving circuit and the light source driving circuit of described optical projection system; Described scanning element driving circuit is in order to drive micro electronmechanical eyeglass swing; The light source driving circuit that is used to control the corresponding signal of video signal of output can drive simultaneously and project into light source and generate and the high-power projection laser light of output device.Projection by the output of projection imaging light source is penetrated and is projected on the projecting plane with scan mode by the swing of micro electronmechanical eyeglass with laser light.
Yet, in the existing optical projection system use, when micro electronmechanical eyeglass can't normally be swung, projection with laser light can't be by the normal swing of micro electronmechanical eyeglass normal projection, especially when micro electronmechanical eyeglass can't be swung, the projection of being sent by micro electronmechanical eyeglass will pool pencil with laser light, and the high power projection of this output is radiated at the generation that causes the fire or the accident of burning on fire goods or the human body easily for a long time with laser light, a kind ofly detects micro electronmechanical eyeglass operation conditions and then guarantees optical projection system safe in utilization so be necessary to research and develop at the defective of the known optical projection system of this kind.
The utility model content
The purpose of this utility model is the defective that exists at the above-mentioned background technology, and a kind of optical projection system that improves safety in utilization is provided.
For achieving the above object, the optical projection system that provides of the utility model comprises a projection imaging light source, a detecting light source, a light source driving circuit, one scan unit, one scan cell driving circuit, at least one perceptron and a controller; Light source driving circuit is in order to drive projection imaging light source and detecting light source; Scanning element has the micro electronmechanical eyeglass that can swing, is formed with a projection imaging zone and a detection area respectively in order to the light of accepting projection imaging light source and detecting light source and after sending; The scanning element driving circuit is in order to drive the swing of micro electronmechanical eyeglass; Perceptron is arranged in the detection area in order to accept light that scanning element sends and to generate feedback signal according to the input status of light; Controller is in order to control light source driving circuit and scanning element driving circuit and to detect the result according to the feedback signal output of accepting.
In sum, the detected light that optical projection system of the present utility model can be sent the detecting light source is sent with scan mode by the swing of micro electronmechanical eyeglass and is accepted by perceptron, so controller can be judged the operation conditions and the output detecting result of micro electronmechanical eyeglass by the feedback signal that perceptron is sent, thereby can avoid shining the fire failure that causes on fire goods or the human body for a long time or burning, and then improve safety in utilization because of micro electronmechanical eyeglass causes high-power laser light when motionless.
Description of drawings
Fig. 1 is the structural representation of optical projection system of the present utility model.
Fig. 2 is the perspective view for the projection imaging light source of optical projection system of the present utility model and detecting light source.
Fig. 3 is for being the schematic flow sheet of the employed method for detecting of optical projection system of the present utility model.
The description of reference numerals of each element is as follows among the figure:
Projection imaging light source 10 projection imaging zones 101
Light source driving circuit 20 scanning elements 30
Micro electronmechanical eyeglass 301 scanning element driving circuits 40
Detecting light source 50 detection area 501
Perceptron 60 controllers 70
Embodiment
By describing technology contents of the present utility model, structural attitude in detail, reached purpose and effect, below exemplify now that embodiment and conjunction with figs. are detailed gives explanation.
See also Fig. 1 and Fig. 2, optical projection system 100 of the present utility model comprises a projection imaging light source 10, a light source driving circuit 20, one scan unit 30, one scan cell driving circuit 40, detecting light source 50, at least one perceptron 60 and a controller 70.
See also Fig. 1 and Fig. 2, the controller 70 of optical projection system 100 of the present utility model is in order to control light source driving circuit 20 and scanning element driving circuit 40.Described light source driving circuit 20 generates projection respectively with laser light and detected light in order to drive projection imaging light source 10 and detecting light source 50.Described scanning element driving circuit 40 is in order to driven sweep unit 30.But scanning element 30 has the micro electronmechanical eyeglass 301 of a reciprocally swinging, is formed with projection imaging zone 101 and one detection area 501 in order to accept projection imaging light source 10 and to detect the light of light source 50 and send the back respectively in projection place.Perceptron 60 is arranged in the detection area 501, in order to accept detected light that scanning element 30 sends and to generate feedback signal according to the input status of detected light.
Please continue and consult Fig. 1 and Fig. 2, the micro electronmechanical eyeglass 301 of optical projection system 100 of the present utility model can be around two orthogonal spatial axes reciprocally swinging back and forth upwards simultaneously, describe for convenient, the micro electronmechanical eyeglass 301 of special regulation can be simultaneously under the driving of scanning element driving circuit 40 around the X-axis of space coordinates and Y-axis reciprocally swinging back and forth, when micro electronmechanical eyeglass 301 when X-axis is rotated, can on a dimension, carry out image scanning by the laser light of projection imaging light source 10 incidents through the reflection of micro electronmechanical eyeglass 301; In like manner, when rotating, Y-axis can on another dimension, carry out image scanning when micro electronmechanical eyeglass 301.Bidimensional image can be projected on the respective projection face by this.
See also Fig. 2, projection imaging light source 10 and the projection sent of detecting light source 50 are incident upon on the micro electronmechanical eyeglass 301 with different angles with detected light with laser light, the projection of sending by projection imaging light source 10 and detecting light source 50 with laser light and detected light behind the reflective projection of micro electronmechanical eyeglass 301 respectively projection place form regional 101 and one detection area 501 of a projection imaging.Described projection imaging zone 101 and detection area 501 overlapping parts.Described detection area 501 further is divided into four sub regions by two orthogonal separatrix, promptly the scanning pattern that forms of the detected light of only sending during reciprocally swinging back and forth around X-axis or Y-axis at separatrix described in this specific embodiment and micro electronmechanical eyeglass 301 is corresponding, is placed with perceptron 60 in the subregion of this detection area 501.
When optical projection system 100 was in unlatching or self check state, controller 70 sent the corresponding driving signal to scanning element driving circuit 40 and light source driving circuit 20 respectively.The micro electronmechanical eyeglass 301 of described scanning element driving circuit 40 driven sweep unit 30 is reciprocally swinging back and forth.Described controller 70 sends the corresponding synchronous drive signal to light source driving circuit 20 simultaneously, and make light source driving circuit 20 drive projection imaging light source 10 and detecting light source 50 respectively to generate respective projection with laser light and detected light, the projection that described projection imaging light source 10 generates is incident upon back and forth on the micro electronmechanical eyeglass 301 of reciprocally swinging with the detected light that laser light and detecting light source 50 generate with different angles, by the reciprocally swinging back and forth of micro electronmechanical eyeglass 301, so projection is all sent with scan mode with laser light and detected light.
In the optical projection system 100 of the present utility model, during the undesired swing of micro electronmechanical eyeglass 301, there are three kinds of situations.First kind of situation: promptly when micro electronmechanical eyeglass 301 can't be swung and rest on a certain position of detection area, the projection of sending after micro electronmechanical eyeglass 301 scannings of scanning element 30 can't be sent with scan mode with laser light and detected light, and detected light will accumulate pencil and be radiated on the correspondence position of detection area 501, at this moment, there are two kinds of situations in the detected light of being sent by micro electronmechanical eyeglass 301: promptly wherein a perceptron 60 perceptron 60 that can receive detected light or be positioned at detection area 501 all can't receive detected light, these two kinds of situations all can be judged and output respective feedback signal by perceptron 60, this feedback signal is accepted by controller 70 and is exported the abnormal signal of micro electronmechanical eyeglass 301 operations and give the display unit (not shown), can make this optical projection system 100 and operating personnel know that projector equipment is in the situation of irregular operating and does next step relevant operation by this.
Second kind of situation: promptly when micro electronmechanical eyeglass 301 any in X-axis and Y-axis can't swing on axially or in X-axis and Y-axis any can swing on axially but swing also not in place or therein one can swing on axially and swing to certain angle on axially when slack at another, the detected light of sending after micro electronmechanical eyeglass 301 scannings is shuttle-scanning back and forth along the relevant position of detection area 501.When micro electronmechanical eyeglass 301 any in X-axis and Y-axis can't be swung on axially or any can be swung on axially but swing when not in place in X-axis and Y-axis, at this moment, perceptron 60 all can't be accepted the detected light sent by micro electronmechanical eyeglass, the micro electronmechanical eyeglass 301 that perceptron 60 generates scans unusual feedback signal and accepts judgement by controller 70, the micro electronmechanical eyeglass 301 scanning anomalous signals display unit (not shown) of described controller 70 control outputs can make this optical projection system 100 and operating personnel know that projection arrangement is in the situation of irregular operating and does next step relevant operation by this.When micro electronmechanical eyeglass therein one axially go up and can swing and on another is axial, swing to certain angle when slack, at this moment, the detected light that micro electronmechanical eyeglass 301 is sent can be accepted by part perceptron 60, also can scan blank space in detection area, perceptron 60 generates the unusual feedback signal of micro electronmechanical eyeglass scanning and accepts judgement by controller according to above-mentioned two kinds of situations are same, the micro electronmechanical eyeglass 301 scanning anomalous signals display unit (not shown) of described controller 70 control outputs can make this optical projection system 100 and operating personnel know that projection arrangement is in the situation of irregular operating and does next step relevant operation by this.
The third situation: promptly when micro electronmechanical eyeglass 301 X-axis and Y-axis axially on all can swing, have at least when one axially upward swing is not in place but have, at this moment, though perceptron 60 can receive the detected light that micro electronmechanical eyeglass 301 is sent, the time interval when all more micro electronmechanical eyeglass 301 such as the time interval of the detected light that perceptron 60 receives, frequency is normally swung, frequency etc. are variant.The dynamo-electric eyeglass 301 of the microcomputer of perceptron 60 generations scans unusual feedback signal and accepts judgement by controller 70 in view of the above, the micro electronmechanical eyeglass 301 scanning anomalous signals of described controller 70 control outputs are given the display unit (not shown), can make this optical projection system 100 and operating personnel know that projector equipment is in the situation of irregular operating and does next step relevant operation by this.
See also Fig. 3, a kind of method for detecting of optical projection system 100 comprises the steps:
(1) controls light source driving circuits 20 by controller 70 and make described light source driving circuit 20 drive detecting light sources 50 generation detected light;
(2) detected light that is generated by detecting light source 50 301 is sent with scan mode after the micro electronmechanical eyeglass scanning of scanning element 30;
(3) detected light of being sent by micro electronmechanical eyeglass 301 is accepted and is generated by perceptron 60 and feeds back signal to controller 70 accordingly; And
(4) controller 70 is accepted feedback signal and is judged whether micro electronmechanical eyeglass 301 scans the corresponding detecting result of control output unusually then.
The swing characteristic of micro electronmechanical eyeglass 301 when optical projection system 100 employed method for detecting are based on optical projection system 100 projections, be that micro electronmechanical eyeglass 301 can be in the space two orthogonal axially on reciprocally swinging back and forth, describe for convenient, present embodiment refers in particular to the X-axis and the Y-axis of space coordinates as shown in Figure 2, and then the detected light that is incident upon on the micro electronmechanical eyeglass 301 is sent in the mode of scanning through the swing of micro electronmechanical eyeglass 301.
In sum, the detected light that optical projection system 100 of the present utility model can be sent detecting light source 50 is sent with scan mode by the swing of micro electronmechanical eyeglass 301 and is accepted by perceptron 60, so controller 70 can be judged the operation conditions and the output detecting result of micro electronmechanical eyeglass 301 by the feedback signal that perceptron 60 is sent, thereby can avoid shining the fire failure that causes on fire goods or the human body for a long time or burning, and then improve safety in utilization because of micro electronmechanical eyeglass 301 causes high-power laser light when motionless.
Claims (3)
1. optical projection system, comprise a projection imaging light source, one light source driving circuit, the one scan unit, an one scan cell driving circuit and a controller, light source driving circuit is in order to drive projection imaging light source and detecting light source, scanning element has the micro electronmechanical eyeglass that can swing, in order to accept being formed with a projection imaging zone in projection place after the projection imaging light source is sent, the scanning element driving circuit is in order to drive the swing of micro electronmechanical eyeglass, controller is in order to control light source driving circuit and scanning element driving circuit, it is characterized in that: also comprise a detecting light source and an at least one perceptron, micro electronmechanical eyeglass can be accepted to detect the light of light source and send the back and form a detection area, perceptron is arranged in the detection area, in order to accepting light that scanning element sends and to generate feedback signal according to the input status of light, controller can be according to the feedback signal output detecting result who accepts.
2. optical projection system according to claim 1 is characterized in that: described detection area further is divided into four sub regions by two orthogonal separatrix, is placed with perceptron in the subregion of this detection area.
3. optical projection system according to claim 1 is characterized in that: the projection that described projection imaging light source and detecting light source are sent is projeced on the micro electronmechanical eyeglass with different angles with detected light with laser light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201853174U CN201689264U (en) | 2010-04-30 | 2010-04-30 | Projecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201853174U CN201689264U (en) | 2010-04-30 | 2010-04-30 | Projecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201689264U true CN201689264U (en) | 2010-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201853174U Expired - Fee Related CN201689264U (en) | 2010-04-30 | 2010-04-30 | Projecting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201689264U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102236239A (en) * | 2010-04-30 | 2011-11-09 | 富港电子（东莞）有限公司 | Projection system and detection method thereof |
| CN102937773A (en) * | 2011-12-02 | 2013-02-20 | 深圳市光峰光电技术有限公司 | Light source device and projecting device using same |
-
2010
- 2010-04-30 CN CN2010201853174U patent/CN201689264U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102236239A (en) * | 2010-04-30 | 2011-11-09 | 富港电子（东莞）有限公司 | Projection system and detection method thereof |
| CN102937773A (en) * | 2011-12-02 | 2013-02-20 | 深圳市光峰光电技术有限公司 | Light source device and projecting device using same |
| CN102937773B (en) * | 2011-12-02 | 2015-04-29 | 深圳市光峰光电技术有限公司 | Light source device and projecting device using same |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20160430 |