CN105223763B - Brightness automatic equalization device and the method in 3D projection systems is reclaimed for light - Google Patents
Brightness automatic equalization device and the method in 3D projection systems is reclaimed for light Download PDFInfo
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- CN105223763B CN105223763B CN201510740741.8A CN201510740741A CN105223763B CN 105223763 B CN105223763 B CN 105223763B CN 201510740741 A CN201510740741 A CN 201510740741A CN 105223763 B CN105223763 B CN 105223763B
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- 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
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
Abstract
This application provides a kind of brightness automatic equalization device and method reclaimed for light in 3D projection systems, wherein, the brightness automatic equalization device includes：Brightness detector, is arranged between projector and screen, for detecting the brightness between the projector and the screen, and produces a detection signal；Controller, is electrically connected with the brightness detector, for adjusting the output brightness of projector according to the detection signal.The application can prevent the brightness output of projector (projecting apparatus) from fluctuation occur, so as to meet the quality of projection regulation.
Description
Technical field
The present invention relates to technical field of optical instrument, more particularly to three-dimensional (3D) projection display equipment, it is exactly specifically
A kind of brightness automatic equalization device and method reclaimed for light in 3D projection systems.
Background technology
At present, light reclaims 3D devices and directly can insert in projecting apparatus (projector), reclaims 3D devices by light, and projector can
Polarised light is directly exported, and polarised light, can be by visible ray luminance raising in screen to before polarizing after light reclaims 3D devices
90%, so as to improve light efficiency (light output efficiency), and light reclaim 3D devices can support using unit polarization type 3D systems with
Two-shipper polarization type 3D two kinds of 3D systems of system.
However, be the passive light efficiency (being exported by 3D systems) for improving output as existing light reclaims 3D devices,
In actual application scenarios, due to due to projector (projecting apparatus) xenon lamp service life, the brightness of projector output is not
One invariable value, can be with the prolongation of use time, and projector xenon lamp can not stablize brightness output, and export bright
Degree can also decline, and the brightness value for so resulting in light recovery 3D device reality outputs also can decline therewith, and it is possible that
Fluctuate widely.And in motion picture projection technique standard, for the visual experience for giving spectators good, it is desirable to which it is one to export brightness
Smoother curve, it is impossible to occur significantly fluctuating.
Therefore, those skilled in the art need a kind of 3D projection systems with luminance proportion function of research and development badly, to ensure to put
Film projector (projecting apparatus) output brightness is a smoother curve, so as to meet the quality of projection regulation.
Content of the invention
In view of this, the technical problem that the application is solved is to provide a kind of brightness that reclaims in 3D projection systems for light
Automatic equalization device and method, solve projector (projecting apparatus) of the prior art brightness output and fluctuation occur, cause
The bad problem of projection quality.
In order to solve above-mentioned technical problem, a specific embodiment of the application provides a kind of light that is used for and reclaims 3D projections
Brightness automatic equalization device in system, including：Brightness detector, is arranged between projector and screen, described for detecting
Brightness between projector and the screen, and produce a detection signal；Controller, is electrically connected with the brightness detector,
For adjusting the output brightness of projector according to the detection signal.
It is automatically equal that the another embodiment of the application provides a kind of brightness that reclaims in 3D projection systems for light
Weighing apparatus method, including：Using the light between the brightness detector detection projector and screen being arranged between projector and screen
Degree, and produce a detection signal；According to the output brightness that the detection signal adjusts projector.
Based on above-mentioned specific embodiment, can learn that the brightness that reclaims for light in 3D projection systems of the application is automatic
Balancer and method at least have following technique effect and feature：3D equipment is reclaimed by brightness detector real-time detection light
Input brightness or output brightness data, the brightness data according to detection obtains brightness change curve, then brightness change curve is entered
Row discretization computing, so as to obtain smooth change curve, produces brightness control signal further according to smooth change curve, using brightness
The brightness output of control signal control projector (projecting apparatus), the curve for making the brightness change curve convergence of detection smooth, can
To ensure that the brightness output of projector (projecting apparatus) is not in fluctuate widely, so as to meet the quality of projection regulation, carry
High user experience.
It is to be understood that above-mentioned general description and detailed description below are merely illustrative and illustrative, which is not
The be intended to scope that advocates of the present invention can be limited.
Description of the drawings
Following appended accompanying drawing is a part for the specification of the present invention, and which depicts the example embodiment of the present invention, institute
Accompanying drawing is used for the principle that the present invention is described together with the description of specification.
A kind of brightness automatic equalization reclaimed for light in 3D projection systems that Fig. 1 is provided for the specific embodiment of the invention
The block diagram of the specific embodiment one of device；
A kind of brightness automatic equalization reclaimed for light in 3D projection systems that Fig. 2 is provided for the specific embodiment of the invention
The block diagram of the specific embodiment two of device；
A kind of brightness automatic equalization reclaimed for light in 3D projection systems that Fig. 3 is provided for the specific embodiment of the invention
The block diagram of the controller of device；
Fig. 4 provides a kind of brightness automatic equalization side reclaimed in 3D projection systems for light for the specific embodiment of the invention
The flow chart of the embodiment one of method；
Fig. 5 provides a kind of brightness automatic equalization side reclaimed in 3D projection systems for light for the specific embodiment of the invention
The flow chart of the embodiment two of method；
Fig. 6 provides a kind of brightness automatic equalization side reclaimed in 3D projection systems for light for the specific embodiment of the invention
The flow chart of the embodiment three of method；
Fig. 7 provides a kind of brightness automatic equalization side reclaimed in 3D projection systems for light for the specific embodiment of the invention
The flow chart of the example IV of method；
Fig. 8 provides the reality that a kind of light with luminance proportion function reclaims 3D projection systems for the specific embodiment of the invention
Apply the structural representation of example one；
Fig. 9 provides the reality that a kind of light with luminance proportion function reclaims 3D projection systems for the specific embodiment of the invention
Apply the structural representation of example two；
Figure 10 provides a kind of light with luminance proportion function for the specific embodiment of the invention and reclaims 3D projection systems
The structural representation of embodiment three；
Figure 11 is smoothed front projector for what the specific embodiment of the invention was provided to light recovery 3D projection systems
Output brightness curve；
Figure 12 is smoothed middle projector for what the specific embodiment of the invention was provided to light recovery 3D projection systems
Output brightness curve；
Figure 13 is smoothed rear projector for what the specific embodiment of the invention was provided to light recovery 3D projection systems
Output brightness curve.
Specific embodiment
For making purpose, technical scheme and the advantage of the embodiment of the present invention become more apparent, below will with accompanying drawing and in detail
Narration clearly illustrates that the spirit of disclosed content, any skilled artisan are understanding present invention
After embodiment, when the technology that can be taught by present invention, it is changed and modifies, its essence without departing from present invention
God and scope.
The schematic description and description of the present invention is for explaining the present invention but not as a limitation of the invention.
In addition, element/the component of same or like label used in drawings and the embodiments is for representing same or like portion
Point.
With regard to " first " used herein, " second " ... etc., not especially censure the meaning of order or cis-position,
It is not used to limit the present invention, which is only for difference with the element of constructed term description or operation.
With regard to direction term used herein, for example：Upper and lower, left and right, front or rear etc., only it is the side of refer to the attached drawing
To.Therefore, the direction term for using is for illustrating not for limiting this creation.
With regard to "comprising" used herein, " including ", " with ", " containing " etc., the term of opening is, i.e.,
Mean including but not limited to.
With regard to used herein " and/or ", including arbitrary or whole combination of the things.
With regard to term used herein " substantially ", " about " etc., in order to modify any can be with the quantity of microvariations or mistake
Difference, but this slight variations or error can't change its essence.In general, the microvariations modified of such term or error
Scope in some embodiments can be 20%, in some embodiments can be 10%, in some embodiments can be 5% or its
His numerical value.It will be understood by those skilled in the art that the aforementioned numerical value for referring to can be adjusted according to actual demand, it is not limited thereto.
Some in order to describe the word of the application by lower or this specification other places discuss, to provide art technology
The extra guiding on about the description of the present application of personnel.
A kind of brightness automatic equalization reclaimed for light in 3D projection systems that Fig. 1 is provided for the specific embodiment of the invention
The block diagram of the specific embodiment one of device, as shown in figure 1, in this specific embodiment, by 10 real-time inspection of brightness detector
Brightness between measuring film projector and screen, and a detection signal is produced, controller 20 is according to detection signal adjustment projection
The output brightness of machine.
The accompanying drawing embodiment includes：Brightness detector 10, controller 20.Brightness detector 10 is arranged at projector and screen
Between, brightness detector 10 is used for detecting the brightness between the projector and the screen, so as to produce a detection signal；
Controller 20 is electrically connected with the brightness detector 10, and controller 20 is used for the output for adjusting projector according to the detection signal
Brightness.
Referring to Fig. 1, arrange that a brightness detector 10, brightness detector 10 detect described putting between projector and screen
After brightness between film projector and the screen, a detection signal is produced；Controller 20 is projected according to the detection signal
The brightness change curve of instrument or projector, recycles Filtering Formula to carry out discretization to the brightness change curve so as to obtaining
Smooth change curve, produces brightness control signal finally according to smooth change curve, and brightness control signal is used for adjusting projector
Or the output brightness of projector, it is ensured that the output brightness of projector or projector is a smoother curve,
So as to meet the quality of projection regulation, user experience is improved.
A kind of brightness automatic equalization reclaimed for light in 3D projection systems that Fig. 2 is provided for the specific embodiment of the invention
The block diagram of the specific embodiment two of device, as shown in Fig. 2 in this specific embodiment, the projector and the screen it
Between light be set reclaim 3D equipment 30, after brightness detector 10 can be reclaimed before 30 light efficiency of 3D equipment strengthens or be strengthened with Direct-detection Optical
Luminous intensity, according to now obtain detection signal adjustment projector or projector brightness output, more directly can adjust
The brightness that whole spectators see, meets user's request.
In the accompanying drawing specific embodiment, brightness automatic equalization device also includes that light reclaims 3D equipment 30, and wherein, light is reclaimed
3D equipment 30 is arranged between the projector and the screen, and the light that light recovery 3D equipment 30 is used for improving the projector is defeated
Go out efficiency.
In addition, the present invention does not specifically limit the position relationship that brightness detector 10 and light are reclaimed between 3D equipment 30, and
Controller 20 and light reclaim the position relationship between 3D equipment 30, and brightness detector 10 may be located at light and reclaim the interior of 3D equipment 30
Portion or outside, controller 20 can also be located at light and reclaim 3D equipment 30 either internally or externally.For example, the brightness detector
10 are arranged between the projector and light recovery 3D equipment 30, now, and the brightness refers to that the light reclaims 3D and sets
The output brightness of standby 10 incident brightness, i.e. projecting apparatus or projector；Or, the brightness detector 10 is arranged at the light
Reclaim between 3D equipment 30 and the screen, now, the brightness refers to that the light reclaims the outgoing brightness of 3D equipment 10,
The brightness being irradiated in screen；Or, the brightness detector 10 is arranged at the light and reclaims 3D equipment 30 and the silver
Between curtain, now, the brightness refers to that the light reclaims reflectance lightness of the emergent light of 3D equipment 10 in screen, i.e. silver
The brightness of curtain reflection.
Referring to Fig. 2, input or the brightness output for reclaiming 3D equipment 30 is detected using brightness detector 20, can be more straight
The viewing brightness of adjustment spectators is seen, user experience is improve.
A kind of brightness automatic equalization reclaimed for light in 3D projection systems that Fig. 3 is provided for the specific embodiment of the invention
The block diagram of the controller of device, as shown in figure 3, in this specific embodiment, discloses the specifically how basis of controller 20
The detection signal adjusts the output brightness of projector, wherein needs to be applied to discretization formula, allows rough brightness to change
Curve is smoothened.
In the accompanying drawing embodiment, the controller 20 is further included：Brightness curve signal generating unit 21, smooth unit
22nd, control signal signal generating unit 23, adjustment unit 24, wherein, brightness curve signal generating unit 21 is used for according to the detection signal
Obtain brightness change curve；Smooth unit 22 is used for carrying out discretization to the brightness change curve so as to obtaining using Filtering Formula
Obtain smooth change curve；Control signal signal generating unit 23 is used for producing brightness control signal according to the smooth change curve；Adjust
Whole unit 24 is used for the output brightness for adjusting projector according to the brightness control signal.
As shown in figure 3, brightness curve signal generating unit 31 is uneven according to the brightness change curve that the detection signal is obtained
Sliding (as shown in figure 11), it is impossible to the luminance proportion of projection system, is as a result to show brightness fluctuation, vision viewing effect
Difference；Need to carry out the brightness change curve discretization so as to obtaining smooth change curve (such as Figure 12 institutes using Filtering Formula
Show)；Then brightness control signal, and then the output brightness of adjustment projector can be produced according to the smooth change curve, such as
Shown in Figure 13, the output brightness of the output brightness curve of projector, projector or projecting apparatus after adjustment is not in big amplitude wave
Dynamic, Consumer's Experience effect is good.
In one particular embodiment of the present invention, the Filtering Formula is specially：
Wherein, σ is standard deviation；X, y are brightness change curve coordinate value；H (x, y) takes parameter on trendline for smooth change.Above-mentioned
The principle of formula is：By carrying out discretization to function, with the functional value on discrete point as weights, the detected value for collecting is done
Weighted average in certain limit neighborhood, you can effectively eliminate noise, make brightness change curve be converted into output brightness curve.
Fig. 4 provides a kind of brightness automatic equalization side reclaimed in 3D projection systems for light for the specific embodiment of the invention
The flow chart of the embodiment one of method, as shown in figure 4, in this specific embodiment, using brightness detector detection projector and
Brightness between screen, and a detection signal is produced, further according to the output brightness that the detection signal adjusts projector, prevent
There is fluctuation in the brightness output of projector.
The accompanying drawing embodiment is comprised the following steps：
Step 1：Using the light between the brightness detector detection projector and screen being arranged between projector and screen
Brightness, and produce a detection signal.
Step 2：According to the output brightness that the detection signal adjusts projector.
Referring to Fig. 4, a brightness detector, brightness detector detection projector and silver is arranged between projector and screen
After brightness between curtain, a detection signal is produced；Controller obtains projecting apparatus or projector according to the detection signal
Brightness change curve, recycles Filtering Formula to carry out discretization so as to obtain smooth change curve to the brightness change curve,
Brightness control signal is produced finally according to smooth change curve, brightness control signal is used for the output brightness for adjusting projector, can
To ensure that the output brightness of projector is a smoother curve, so as to meet the quality of projection regulation, user's body is improved
Degree of testing.
Fig. 5 provides a kind of brightness automatic equalization side reclaimed in 3D projection systems for light for the specific embodiment of the invention
The flow chart of the embodiment two of method, as shown in figure 5, in this specific embodiment, brightness detector detection light reclaims 3D equipment
Incident brightness, i.e. the brightness output of projector or projecting apparatus, and then produce detection signal, the further basis of controller
The detection signal adjusts the output brightness of projector.
The accompanying drawing embodiment is comprised the following steps：
Step 101：The incident brightness that 3D equipment is reclaimed using brightness detector detection light, and produce a detection signal.
Incident brightness is the output brightness of projector or projecting apparatus.
Step 102：Brightness change curve is obtained according to the detection signal.Brightness change curve easily cause projector or
The fluctuation of the output brightness of person's projecting apparatus, affects the visual effect of spectators.
Step 103：Discretization is carried out to the brightness change curve so as to obtaining smooth change curve using Filtering Formula.
Filtering Formula eliminates Gaussian noise, makes brightness change curve be converted into smooth change curve.
Step 104：Brightness control signal is produced according to the smooth change curve.Projector or projecting apparatus can bases
Brightness control signal adjusts the output brightness of itself.
Step 105：According to the output brightness that the brightness control signal adjusts projector.
Referring to Fig. 5, in one brightness detector of either internally or externally arrangement that existing light reclaims 3D equipment, brightness detector
The incident brightness of 3D equipment, i.e. projecting apparatus or projector output brightness can be reclaimed with detection light.Brightness detector detects institute
After stating the brightness that light reclaims 3D equipment, a detection signal is produced；Controller according to the detection signal obtain projecting apparatus or
The brightness change curve of projector, recycles Filtering Formula to carry out discretization to the brightness change curve so as to obtaining and brightness
The related smooth change curve of change curve, produces brightness control signal, brightness control signal finally according to smooth change curve
For adjusting the output brightness of projector, it is ensured that the output brightness of projector is a smoother curve, so as to full
The specified quality of foot projection, improves user experience.
Fig. 6 provides a kind of brightness automatic equalization side reclaimed in 3D projection systems for light for the specific embodiment of the invention
The flow chart of the embodiment three of method, as shown in fig. 6, in this specific embodiment, brightness detector detection light reclaims 3D equipment
Outgoing brightness, i.e., light reclaim 3D equipment export to the brightness of screen, brightness detector further produces detection signal, controller
The output brightness of projector is now further adjusted according to the detection signal.
The accompanying drawing embodiment is comprised the following steps：
Step 201：The outgoing brightness that 3D equipment is reclaimed using brightness detector detection light, and produce a detection signal；
Step 202：Brightness change curve is obtained according to the detection signal；
Step 203：Discretization is carried out to the brightness change curve so as to obtaining smooth change curve using Filtering Formula；
Step 204：Brightness control signal is produced according to the smooth change curve；And
Step 205：According to the output brightness that the brightness control signal adjusts projector.
It is with reference to the difference of Fig. 6, Fig. 6 and Fig. 5, brightness detector detection light reclaims the outgoing light of 3D equipment
Degree, i.e., adjust the output brightness of projecting apparatus or projector, other parts on the basis of the outgoing brightness for reclaiming 3D equipment by light
Principle is identical, in view of length, no longer burden.
Fig. 7 provides a kind of brightness automatic equalization side reclaimed in 3D projection systems for light for the specific embodiment of the invention
The flow chart of the example IV of method, as shown in fig. 7, in this specific embodiment, brightness detector detection light reclaims 3D equipment
Reflectance lightness of the emergent light in screen, i.e. the brightness of screen reflection, and then produce detection signal, controller is now further
According to the output brightness that the detection signal adjusts projector or projecting apparatus.
The accompanying drawing embodiment specifically includes following steps：
Step 301：Reflectance lightness of the emergent light of 3D equipment in screen is reclaimed using brightness detector detection light, and
Produce a detection signal；
Step 302：Brightness change curve is obtained according to the detection signal；
Step 303：Discretization is carried out to the brightness change curve so as to obtaining smooth change curve using Filtering Formula；
Step 304：Brightness control signal is produced according to the smooth change curve；And
Step 305：According to the output brightness that the brightness control signal adjusts projector.
It is with reference to the difference of Fig. 7, Fig. 7 and Fig. 5, brightness detector detection light reclaims the emergent light of 3D equipment in silver
Reflectance lightness on curtain, i.e., adjust the output brightness of projecting apparatus or projector on the basis of the brightness of screen reflection, its
Its Some principles is identical, in view of length, no longer burden.
Fig. 8 provides the reality that a kind of light with luminance proportion function reclaims 3D projection systems for the specific embodiment of the invention
Apply the structural representation of example one；Fig. 9 provides a kind of light with luminance proportion function for the specific embodiment of the invention and reclaims 3D
The structural representation of the embodiment two of projection system；Figure 10 provides a kind of with luminance proportion work(for the specific embodiment of the invention
The light of energy reclaims the structural representation of the embodiment three of 3D projection systems, as shown in Fig. 8～Figure 10, in the specific embodiment
In, brightness detector 10 is set between the projector and the screen and light reclaims 3D equipment 30,3D equipment is reclaimed in light
30 either internally or externally deployment brightness detector 10 and controller 20, between the detection projector of brightness detector 10 and screen
Brightness, and produce detection signal；Controller 20 adjusts the output brightness of projector or projecting apparatus according to the detection signal.
The accompanying drawing embodiment is specifically included：Brightness automatic equalization device, projector and screen, wherein, the brightness is automatic
Balancer is arranged between the projector and the screen.The brightness automatic equalization device is specifically included：Brightness is detected
Device 10, controller 20, light reclaim 3D equipment 30.Brightness detector 10 is arranged between projector and screen, brightness detector 10
For detecting the brightness between the projector and the screen, and a detection signal is produced, wherein, the brightness can be with
Including：The light reclaims the outgoing brightness that the incident brightness (as shown in Figure 8) of 3D equipment 30, the light reclaim 3D equipment 30
(as shown in Figure 9), the light reclaim reflectance lightness (as shown in Figure 10) of the emergent light of 3D equipment 30 in screen；Controller
20 are electrically connected with the brightness detector 10, and controller 20 is used for the output brightness for adjusting projector according to the detection signal；
Light reclaims 3D equipment 30 and is arranged between the projector and the screen, and light reclaims 3D equipment 30 to be used for improving the projector
Light output efficiency.The projector is used for projects images.The screen is used for receiving the image of projection and forms visual image.
Referring to Fig. 8～Figure 10, the present invention reclaims one brightness inspection of either internally or externally arrangement of 3D equipment 30 in existing light
Device 10 is surveyed, brightness detector 10 can reclaim the incident brightness of 3D equipment 30, i.e. projecting apparatus or projector output with detection light
Brightness；Brightness detector 10 can also detection light reclaim the outgoing brightness of 3D equipment 30, that is, the brightness being irradiated in screen；
Brightness detector 10 can also detection light reclaim reflectance lightness of the emergent light of 3D equipment 30 in screen, i.e. screen reflection
Brightness.After the detection brightness of brightness detector 10, a detection signal is produced；Controller 20 is thrown according to the detection signal
The brightness change curve of shadow instrument or projector, recycles Filtering Formula to carry out discretization to the brightness change curve so as to obtaining
The smooth change curve related to brightness change curve is obtained, and brightness control signal, brightness is produced finally according to smooth change curve
Control signal is used for the output brightness for adjusting projector, it is ensured that the output brightness of projector is a smoother song
Line, so as to meet the specified quality of projection, improves user experience.
Figure 11 is smoothed front projector for what the specific embodiment of the invention was provided to light recovery 3D projection systems
Output brightness curve；Figure 12 is provide light is reclaimed of the specific embodiment of the invention during 3D projection systems are smoothed
The output brightness curve of projector；Figure 13 is smoothed to light recovery 3D projection systems for what the specific embodiment of the invention was provided
The output brightness curve of projector after process, as shown in Figure 11～Figure 13, using the present invention before, projector or projecting apparatus defeated
Go out brightness curve and fluctuation occur；In using process of the present invention, the output brightness curve of projector or projecting apparatus changes into flat
Sliding output brightness curve；Through after a while, the output brightness curve of projector or projecting apparatus changes into smooth access water
The curve of horizontal line straight line, it is achieved that the brightness automatic equalization of projection system, so as to meet the specified quality of projection, improves user's body
Degree of testing.
The present invention provides a kind of brightness automatic equalization device and method reclaimed in 3D projection systems for light, by arrangement
Brightness detector real-time detection light between projector and screen reclaims the input brightness of 3D equipment or output brightness data, root
Brightness change curve is obtained according to the brightness data of detection, then discretization computing is carried out to brightness change curve, smooth so as to obtain
Change curve, produces brightness control signal further according to smooth change curve, the projection for controlling projector using brightness control signal
Brightness, adjusts the output brightness of projector, the curve for making the brightness change curve convergence of detection smooth, can prevent projector
There is fluctuation by a relatively large margin in output brightness, so as to meet the specified quality of motion picture projection, improves user experience.
The above-mentioned embodiment of the present invention can be implemented in various hardware, Software Coding or both combination.For example, this
Bright embodiment is alternatively in the execution executed in data signal processor (Digital Signal Processor, DSP)
State the program code of program.The present invention can also refer to computer processor, digital signal processor, microprocessor or scene and can compile
The several functions that journey gate array (Field Programmable Gate Array, FPGA) is executed.Can be according in present invention configuration
State computing device particular task, its pass through to execute the machine-readable software code of the ad hoc approach for defining present invention announcement or
Firmware code is completing.Software code or firmware code can be developed into different program languages from different forms or form.
It has been alternatively different target platform composing software codes.However, software code and other classes according to execution task of the present invention
The different code pattern of type configuration code, type and language are without departing from spirit and scope of the invention.
Schematically specific embodiment of the invention is the foregoing is only, before the design without departing from the present invention and principle
Put, equivalent variations and modification that any those skilled in the art is made all should belong to the scope of protection of the invention.
Claims (8)
1. a kind of for light reclaim 3D projection systems in brightness automatic equalization device, it is characterised in that the device includes：
Brightness detector (10), is arranged between projector and screen, for detecting between the projector and the screen
Brightness, and produce a detection signal；And
Controller (20), is electrically connected with the brightness detector (10), for adjusting the defeated of projector according to the detection signal
Go out brightness, wherein,
Controller (20) further include：
Brightness curve signal generating unit, for obtaining brightness change curve according to the detection signal；
Smooth unit, bent so as to obtain smooth change for carrying out discretization to the brightness change curve using Filtering Formula
Line；
Control signal signal generating unit, for producing brightness control signal according to the smooth change curve；And
Adjustment unit, for adjusting the output brightness of projector according to the brightness control signal.
2. the light that is used for as claimed in claim 1 reclaims the brightness automatic equalization device in 3D projection systems, it is characterised in that should
Device also includes：
Light reclaims 3D equipment (30), is arranged between the projector and the screen, and the light for improving the projector is defeated
Go out efficiency.
3. the light that is used for as claimed in claim 2 reclaims the brightness automatic equalization device in 3D projection systems, it is characterised in that institute
State brightness detector (10) and be arranged at the internal or external of light recovery 3D equipment (30)；Controller (20) are arranged at institute
State light and reclaim the internal or external of 3D equipment (30).
4. the light that is used for as claimed in claim 2 reclaims the brightness automatic equalization device in 3D projection systems, it is characterised in that
Brightness detector (10) are arranged at the projector and the light is reclaimed between 3D equipment (30), and the brightness is
Refer to that the light reclaims the incident brightness of 3D equipment (10)；
Or, brightness detector (10) are arranged at the light and reclaim between 3D equipment (30) and the screen, the light
Degree refers to that the light reclaims the outgoing brightness of 3D equipment (10)；
Or, brightness detector (10) are arranged at the light and reclaim between 3D equipment (30) and the screen, the light
Degree refers to that the light reclaims reflectance lightness of the emergent light of 3D equipment (10) in screen.
5. the light that is used for as claimed in claim 1 reclaims the brightness automatic equalization device in 3D projection systems, it is characterised in that institute
State Filtering Formula to be specially：
Wherein, σ is standard deviation；X, y are brightness change curve coordinate value；H (x, y) takes parameter on trendline for smooth change.
6. a kind of for light reclaim 3D projection systems in brightness automatic balancing method, it is characterised in that the method includes：
Using the brightness between the brightness detector detection projector and screen being arranged between projector and screen, and produce
One detection signal；And
According to the detection signal adjust projector output brightness, wherein,
According to the output brightness that the detection signal adjusts projector, specifically include：
The incident brightness that 3D equipment is reclaimed using brightness detector detection light, and produce a detection signal；
Brightness change curve is obtained according to the detection signal；
Discretization is carried out to the brightness change curve so as to obtaining smooth change curve using Filtering Formula；
Brightness control signal is produced according to the smooth change curve；And
According to the output brightness that the brightness control signal adjusts projector.
7. a kind of for light reclaim 3D projection systems in brightness automatic balancing method, it is characterised in that the method includes：
Using the brightness between the brightness detector detection projector and screen being arranged between projector and screen, and produce
One detection signal；And
According to the detection signal adjust projector output brightness, wherein,
According to the output brightness that the detection signal adjusts projector, specifically include：
The outgoing brightness that 3D equipment is reclaimed using brightness detector detection light, and produce a detection signal；
Brightness change curve is obtained according to the detection signal；
Discretization is carried out to the brightness change curve so as to obtaining smooth change curve using Filtering Formula；
Brightness control signal is produced according to the smooth change curve；And
According to the output brightness that the brightness control signal adjusts projector.
8. a kind of for light reclaim 3D projection systems in brightness automatic balancing method, it is characterised in that the method includes：
Using the brightness between the brightness detector detection projector and screen being arranged between projector and screen, and produce
One detection signal；And
According to the detection signal adjust projector output brightness, wherein,
According to the output brightness that the detection signal adjusts projector, specifically include：
Reflectance lightness of the emergent light of 3D equipment in screen is reclaimed using brightness detector detection light, and produces detection letter
Number；
Brightness change curve is obtained according to the detection signal；
Discretization is carried out to the brightness change curve so as to obtaining smooth change curve using Filtering Formula；
Brightness control signal is produced according to the smooth change curve；And
According to the output brightness that the brightness control signal adjusts projector.
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| CN1115399A (en) * | 1994-03-30 | 1996-01-24 | Lg电子株式会社 | Lamp opreation device for a projection type LCD projector |
| DE10136474A1 (en) * | 2001-07-27 | 2003-02-13 | Philips Corp Intellectual Pty | Electronic circuit for operating an HID lamp and image projector |
| CN100489651C (en) * | 2005-12-29 | 2009-05-20 | 联想(北京)有限公司 | Luminance self-adjusting projector and method thereof |
| JP4957162B2 (en) * | 2006-10-06 | 2012-06-20 | セイコーエプソン株式会社 | Projection display device and projection display method |
| JP5213078B2 (en) * | 2008-10-31 | 2013-06-19 | Ｎｅｃディスプレイソリューションズ株式会社 | Projector, projection image brightness adjustment method, and program |
| CN102279507B (en) * | 2010-06-12 | 2013-04-03 | 上海丽恒光微电子科技有限公司 | Projection display device |
| CN102012615A (en) * | 2010-10-29 | 2011-04-13 | 鸿富锦精密工业（深圳）有限公司 | Projection device having function of automatically adjusting projection luminance and method |
| CN102955341B (en) * | 2011-08-25 | 2015-03-11 | 中强光电股份有限公司 | Projection device and brightness adjustment method thereof |
| CN103217863B (en) * | 2013-04-11 | 2015-10-21 | 雷欧尼斯（北京）信息技术有限公司 | A kind of polarization 3D system based on Polarization recovery |
| CN104635408B (en) * | 2015-03-11 | 2016-04-20 | 青岛海信电器股份有限公司 | A kind of method of projection arrangement, optical projection system and adjustment projection systems project brightness |
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