CN101271253A - Image detecting method and device - Google Patents
Image detecting method and device Download PDFInfo
- Publication number
- CN101271253A CN101271253A CNA2007100891665A CN200710089166A CN101271253A CN 101271253 A CN101271253 A CN 101271253A CN A2007100891665 A CNA2007100891665 A CN A2007100891665A CN 200710089166 A CN200710089166 A CN 200710089166A CN 101271253 A CN101271253 A CN 101271253A
- Authority
- CN
- China
- Prior art keywords
- contrast value
- image light
- image
- optic modulating
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Projection Apparatus (AREA)
- Controls And Circuits For Display Device (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
The invention provides an image detection method which can process the judgment of good and bad with the good precision in a first image detection. A first image detection working procedure (S3) comprises first image light forming steps (S31 and S33) that an image signal is output from a signal generator to a light modulating device through a signal line to respectively form all black image light and all white image light, first illuminating valve inspecting steps (S32 and S34) that each image light is inspected respectively, a first contrast value calculation step (S35) that the contrast value is calculated according to each illuminating value and a first good-bad judging step (S36) of judging the good and bad by comparing the contrast value and a first threshold value. The first threshold value uses an approximate expression to correct the value of a second threshold value used in a second image detection working procedure, and the approximate expression indicates each contrast value obtained by applying the first image detection working procedure (S3) to a plurality of light modulating devices and the correlativity of every contrast value obtained by applying a second image detection working procedure to a plurality of light modulating devices.
Description
Technical field
The present invention relates to image checking method and image testing device.
Background technology
In the past, known had such projector, and it comprises: light supply apparatus; According to the optic modulating device of image information modulation from the light beam of light supply apparatus ejaculation; Take in the used for optical part casing that disposes a plurality of opticses that comprise optic modulating device in inside; Amplify the projector optical apparatus of the light beam that is incident upon the optic modulating device modulation; Supply unit to each inscape supply capability; Control the control device of each inscape; Take in the outer vanning body (for example with reference to patent documentation 1) of configuration light supply apparatus, used for optical part casing, projector optical apparatus, supply unit and control device in inside.
Such projector is for example as follows assembled.
At first, outside constituting, take in the configuration light supply apparatus on the lower house of vanning body, comprise used for optical part casing, projector optical apparatus and the supply unit of each optics, and be electrically connected light supply apparatus and supply unit.
Secondly, to the light supply apparatus supply capability, light light supply apparatus, on screen, show the projected image of regulation from supply unit.And, Yi Bian confirm projected image on the screen, Yi Bian be implemented in the stance adjustment (optical axis adjustment, contrast adjustment) of the optics of taking in the used for optical part box house.
Then, as follows, implement the 1st image inspection.
Utilize signal wire (signal cable) to be electrically connected the signal generator and the optic modulating device of projector outside.In addition, the picture signal of regulation is outputed to optic modulating device, form complete black image light, complete white image light etc. at optic modulating device from signal generator.Further, utilize illuminometer to measure each illumination of the center of projected image on the screen (complete black picture, complete white picture etc.), calculate contrast value according to each illuminometer.And, the contrast value that relatively calculates and the threshold value of regulation, the quality of judgement projector (optic modulating device).Here, be judged to be under the bad situation, for example, optic modulating device be replaced by other optic modulating device, implementing the 1st image inspection once more.
Be judged to be under the situation of certified products in the 1st image inspection, control device is arranged on outer vanning body inside, be electrically connected control device and optic modulating device, projector is assembled into the state of product.
Then, as follows, implement the 2nd image inspection (final inspection).
By the picture signal of regulation being outputed to optic modulating device from control device, on optic modulating device, form complete black image light, complete white image light etc., implement the calculating of contrast value with the inspection of above-mentioned the 1st image, and the quality of projector (optic modulating device) is judged roughly the samely.
Patent documentation 1 spy opens the 2003-215711 communique
But, in the 2nd above-mentioned image inspection (final inspection), owing to implement to check to the optic modulating device output image signal, so picture signal can not be subjected to the influence of noise etc. from control device.That is, can form complete black image light, complete white image light etc. well on optic modulating device, calculate the original contrast value of image light that forms at optic modulating device, precision is implemented quality well and is judged.
On the one hand, in the 1st above-mentioned image is checked, owing to implement to check to the optic modulating device output image signal via signal wire by the signal generator from the projector outside, so because the influence of the resistance value of signal wire etc., the signal level of picture signal reduces.That is, can not on optic modulating device, form complete black image light, complete white image light etc. well, can not calculate the original contrast value of image light that on optic modulating device, forms, in quality is judged, can be judged to be unacceptable product to certified products.
So, in the 1st image is checked, need and can precision implement the technology that quality is judged well.
Summary of the invention
The purpose of this invention is to provide in the 1st image inspection and can precision implement image checking method and the image testing device that quality is judged well.
Image checking method of the present invention is a kind of image checking method of projector, this projector possesses: light supply apparatus, thereby form the optic modulating device of image light according to the light beam that image signal modulation penetrates from described light supply apparatus, amplify the projector optical apparatus of the described image light of projection and make the control device that on described optic modulating device, forms image light to described optic modulating device output image signal; This image checking method is characterised in that, comprising: form the image light of regulation and check that the 1st image of described image light checks operation to described optic modulating device output image signal via signal wire from the signal generator of described projector outside; Form the image light of regulation and check that the 2nd image of described image light checks operation to described optic modulating device output image signal from described control device; Wherein, described the 1st image checks that operation comprises: from described signal generator via signal wire to described optic modulating device output image signal, make the 1st image light that forms complete black image light and complete white image light respectively form step; Detect respectively in described the 1st image light and form described complete black image light and described the 1st luminance detection step of the illumination of white image light entirely that step forms; Calculate the 1st contrast value calculation procedure of contrast value according to each the described illuminometer that detects in described the 1st luminance detection step; Compare the described contrast value and the 1st threshold value that calculate in described the 1st contrast value calculation procedure, thereby judge the 1st fine or not determination step of quality; Described the 2nd image checks that operation comprises: the 2nd image light that forms complete black image light and complete white image light to described optic modulating device output image signal, respectively from described control device forms step; Detect respectively in described the 2nd image light and form described complete black image light and described the 2nd luminance detection step of the illumination of white image light entirely that step forms; Calculate the 2nd contrast value calculation procedure of contrast value according to each the described illuminometer that detects in described the 2nd luminance detection step; Compare the described contrast value and the 2nd threshold value that calculate in described the 2nd contrast value calculation procedure, thereby judge the 2nd fine or not determination step of quality; Described the 1st threshold value is to use the value of described the 2nd threshold value of approximate expression correction, this approximate expression is expression by a plurality of described optic modulating devices being implemented described the 1st image light forms each contrast value that step, described the 1st luminance detection step and described the 1st contrast value calculation procedure obtain and by described a plurality of optic modulating devices being implemented the correlationship that described the 2nd image light forms each contrast value that step, described the 2nd luminance detection step and described the 2nd contrast value calculation procedure obtain.
In the present invention, as follows in advance before implementing the 1st image inspection operation, set the 1st threshold value that is used to carry out the quality judgement.
Promptly, utilize a plurality of optic modulating devices (many projector), implement the 1st image light and form step, the 1st luminance detection step, and the 1st contrast value calculation procedure, from the signal generator of projector outside via signal wire to the optic modulating device output image signal and calculate each contrast value (below be called the 1st contrast value).
In addition, utilize described a plurality of optic modulating device (many projector), implement the 2nd image light and form step, the 2nd luminance detection step, and the 2nd contrast value calculation procedure, from the control device of projector inside to the optic modulating device output image signal and calculate each contrast value (below be called the 2nd contrast value).
Then, according to each the 1st contrast value and each 2nd contrast value corresponding, calculate the approximate expression of the correlationship of each the 1st contrast value of expression and Ge Di 2 contrast values with each the 1st contrast value.
And the value that the 2nd threshold value that the approximate expression that utilization is calculated is used during the quality of checking operation (final inspection) at the 2nd image is judged has carried out revising is set at the 1st threshold value.
Check in the operation at the 1st image, in the 1st fine or not determination step, utilize and carried out the 1st threshold value of setting as mentioned above, implement the judgement of quality.
As above, the approximate expression of the correlationship by calculating each the 1st contrast value of expression and Ge Di 2 contrast values, can find out from signal generator via signal wire to the picture signal of optic modulating device output with from the relation of control device to the signal level of the picture signal of optic modulating device output.And, the rational threshold value of the influence by a value of utilizing approximate expression that the 2nd threshold value has been carried out revising being set at the 1st threshold value, the 1st threshold value become the resistance value of having offset signal wire etc.So the 1st image is checked in the operation, implements fine or not judgement by the 1st threshold value of utilizing such setting, can precision implement the quality judgement well.
Image checking method of the present invention is the image checking method of projector, this projector possesses: light supply apparatus, thereby form the optic modulating device of image light according to the light beam that image signal modulation penetrates from described light supply apparatus, amplify the projector optical apparatus of the described image light of projection and make the control device that on described optic modulating device, forms image light to described optic modulating device output image signal; This image checking method is characterised in that, comprising: form the image light of regulation and check that the 1st image of described image light checks operation to described optic modulating device output image signal via signal wire from the signal generator of described projector outside; From described control device to described optic modulating device output image signal, form the image light of regulation and check that the 2nd image of described image light checks operation; Wherein, described the 1st image checks that operation comprises: from described signal generator via signal wire to described optic modulating device output image signal, make the 1st image light that forms complete black image light and complete white image light respectively form step; Detect respectively in described the 1st image light and form described complete black image light and described the 1st luminance detection step of the illumination of white image light entirely that step forms; Calculate the 1st contrast value calculation procedure of contrast value according to each the described illuminometer that detects in described the 1st luminance detection step; The described contrast value that the approximate expression correction of utilization regulation calculates in described the 1st contrast value calculation procedure calculates the contrast value correction step of revising contrast value; Relatively the correction contrast value that calculates in described contrast value correction step and the threshold value of regulation, thus judge the 1st fine or not determination step of quality; Described the 2nd image checks that operation comprises: the 2nd image light that forms complete black image light and complete white image light to described optic modulating device output image signal, respectively from described control device forms step; Detect respectively in described the 2nd image light and form described complete black image light and described the 2nd luminance detection step of the illumination of white image light entirely that step forms; Calculate the 2nd contrast value calculation procedure of contrast value according to each the described illuminometer that detects in described the 2nd luminance detection step; The relatively described contrast value that calculates in described the 2nd contrast value calculation procedure and the threshold value of described regulation, thus judge the 2nd fine or not determination step of quality; The approximate expression of described regulation is expression by a plurality of described optic modulating devices being implemented described the 1st image light forms each contrast value that step, described the 1st luminance detection step and described the 1st contrast value calculation procedure obtain and by described a plurality of optic modulating devices being implemented the approximate expression that described the 2nd image light forms the correlationship of each contrast value that step, described the 2nd luminance detection step and described the 2nd contrast value calculation procedure obtain.
In the present invention, as follows in advance before implementing the 1st image inspection operation, set the approximate expression of using when revising contrast value.
Promptly, utilize a plurality of optic modulating devices (many projector), implement the 1st image light and form step, the 1st luminance detection step and the 1st contrast value calculation procedure, from the signal generator of projector outside via signal wire to the optic modulating device output image signal, calculate each contrast value (below be called the 1st contrast value).
In addition, utilize described a plurality of optic modulating device (many projector), implement the 2nd image light and form step, the 2nd luminance detection step and the 2nd contrast value calculation procedure, to the optic modulating device output image signal, calculate each contrast value (below be called the 2nd contrast value) from the control device of projector inside.
Then, according to each the 1st contrast value and each 2nd contrast value corresponding, calculate the approximate expression of the correlationship of each the 1st contrast value of expression and Ge Di 2 contrast values with each the 1st contrast value.
And, the approximate expression that calculates is set at the approximate expression of using when the correction of degree of comparing value.
Check in the operation at the 1st image, in contrast value correction step, utilize the approximate expression of setting as mentioned above, revise contrast value calculating and revise contrast value.And in the 1st fine or not determination step, the correction contrast value that relatively calculates and the threshold value of regulation are implemented the judgement of quality as mentioned above.
As above, the approximate expression of the correlationship by calculating each the 1st contrast value of expression and Ge Di 2 contrast values can be found out from signal generator via signal wire to the picture signal of optic modulating device output with from the relation of control device to the signal level of the picture signal of optic modulating device output.And, calculate the correction contrast value by utilizing approximate expression correction contrast value, the value (correction contrast value) of the influence of resistance value that contrast value is become offset signal wire etc.So, in the 1st image inspection operation, carry out the judgement of quality by the correction contrast value of calculating relatively like this and the threshold value of regulation, can precision implement the quality judgement well.
Image testing device of the present invention, it is to possess: light supply apparatus, thereby form the optic modulating device of image light according to the light beam that image signal modulation penetrates from described light supply apparatus, amplify the projector optical apparatus of the described image light of projection, with make on described optic modulating device the image testing device of projector of the control device that forms image light to described optic modulating device output image signal, it is characterized in that: possess: via signal wire to described optic modulating device output image signal, form the signal generator of complete black image light and complete white image light respectively; The luminance detection portion of the illumination of the image light that detection is formed by described optic modulating device; Control part according to the illumination check image light that detects in described luminance detection portion; Wherein, described control part possesses: by from described signal generator via the signal wire output image signal, each illumination of complete black image light that described luminance detection portion is detected form on described optic modulating device and complete white image light is calculated the 1st contrast value computing unit of contrast value according to described each illuminometer; Relatively contrast value and the 1st threshold value of being calculated by described the 1st contrast value computing unit judged the 1st fine or not fine or not identifying unit; By from described control device output image signal, each illumination of complete black image light that described luminance detection portion is detected form on described optic modulating device and complete white image light is calculated the 2nd contrast value computing unit of contrast value according to described each illuminometer; Contrast value and the 2nd threshold value of relatively utilizing described the 2nd contrast value computing unit to calculate are judged the 2nd fine or not fine or not identifying unit; Described the 1st threshold value is to use the value of described the 2nd threshold value of approximate expression correction, this approximate expression each contrast value that to be expression calculated by described the 1st contrast value computing unit a plurality of described optic modulating devices and described a plurality of optic modulating devices are utilized the correlationship of each contrast value that described the 2nd contrast value computing unit calculates.
In the present invention, image testing device possesses: the control part with signal generator, luminance detection portion, the 1st contrast value computing unit, the 1st fine or not identifying unit, the 2nd contrast value computing unit and the 2nd fine or not identifying unit, so can utilize this image testing device to carry out above-mentioned image checking method, enjoy effect and the effect identical with above-mentioned image checking method.
Image testing device of the present invention, it is to possess: light supply apparatus, thereby form the optic modulating device of image light according to the light beam that image signal modulation penetrates from described light supply apparatus, amplify the projector optical apparatus of the described image light of projection, with make on described optic modulating device the image testing device of projector of the control device that forms image light to described optic modulating device output image signal, it is characterized in that: possess: to described optic modulating device output image signal, form the signal generator of complete black image light and complete white image light respectively; The luminance detection portion of the illumination of the image light that detection is formed by described optic modulating device; Control part according to the illumination check image light that detects in described luminance detection portion; Wherein, described control part possesses: by each illumination of the complete black image light that described luminance detection portion detected form at described optic modulating device and complete white image light, calculate the 1st contrast value computing unit of contrast value according to described each illuminometer; Utilize the approximate expression correction of stipulating to calculate the contrast value amending unit of correction contrast value by the contrast value of described the 1st contrast value computing unit calculating; Relatively utilize the correction contrast value of described contrast value amending unit calculating and the threshold value of regulation, judge the 1st fine or not identifying unit of quality; By from described control device output image signal, each illumination of complete black image light that described luminance detection portion is detected form on described optic modulating device and complete white image light is calculated the 2nd contrast value computing unit of contrast value according to described each illuminometer; Relatively utilize the contrast value of described the 2nd contrast value computing unit calculating and the threshold value of described regulation, judge the 2nd fine or not identifying unit of quality; The approximate expression of described regulation each contrast value that to be expression calculated by described the 1st contrast value computing unit a plurality of described optic modulating devices and described a plurality of optic modulating devices are utilized the approximate expression of the correlationship of each contrast value that described the 2nd contrast value computing unit calculates.
In the present invention, image testing device possesses: the control part with signal generator, luminance detection portion, the 1st contrast value computing unit, contrast value amending unit, the 1st fine or not identifying unit, the 2nd contrast value computing unit and the 2nd fine or not identifying unit, so can utilize this image testing device to carry out above-mentioned image checking method, enjoy effect and the effect identical with above-mentioned image checking method.
Description of drawings
Fig. 1 is the figure that schematically represents the formation that is used as the projector of checking object of the 1st embodiment.
Fig. 2 is the block scheme of the structure of the image testing device that uses when schematically representing the production of projector of described embodiment.
Fig. 3 is the process flow diagram of production method of the projector of the described embodiment of explanation.
Fig. 4 is the process flow diagram that the 1st image of the described embodiment of explanation is checked operation.
Fig. 5 is the process flow diagram that the 2nd image of the described embodiment of explanation is checked operation.
Fig. 6 is the figure based on the computing method of the 1st threshold value of approximate expression/threshold calculations unit that is used to illustrate described embodiment.
Fig. 7 is the block scheme of structure of schematically representing the image testing device of the 2nd embodiment.
Fig. 8 is the process flow diagram that the 1st image of the described embodiment of explanation is checked operation.
Symbol description
1,1 ': image testing device, 10: signal generator, 20: illuminometer (luminance detection portion), 51: control part, 100: projector, 100B: projection lens (projector optical apparatus), 100E: control device, 110: light supply apparatus, 151: liquid crystal panel (optic modulating device), 513: the 1 contrast value computing units, 514: the 1 fine or not identifying units, 515: the 2 contrast value computing units, 516: the 2 fine or not identifying units, 518: contrast value amending unit, S3, S3 ': the 1st image is checked operation, S5: the 2nd image is checked operation, S31, S33: the 1st image light forms step, S32, S34: the 1st luminance detection step, S35: the 1st contrast value calculation procedure, S36, S38: the 1st fine or not determination step, S51, S53: the 2nd image light forms step, S52, S54: the 2nd luminance detection step, S55: the 2nd contrast value calculation procedure, S56: the 2nd fine or not determination step.
Embodiment
The 1st embodiment
Below, the 1st embodiment of the present invention is described with reference to the accompanying drawings.
(formation of projector)
Fig. 1 is the figure that schematically represents as the formation of the projector 100 of checking object.
And, in Fig. 1, though omitted concrete diagram, but in the body 100A that cases outside, have in the spatial configuration except that projection lens 100B, optical unit 100C and supply unit 100D: possess the cooling unit of cooling fan etc. of each member of formation of cooling projector 100 inside, and the control device 100E (with reference to Fig. 2) of each member of formation of control projector 100 inside.
And each optics 110～150th is used as the optical system of various general projector and the optics that is utilized, omits it and specifies.
Here, 151,3 the emitting side polarization plates 153 of 3 liquid crystal panels in each member 151～154 of formation optical devices 150, and cross dichroic prism 154 constitute as incorporate optical devices body 150A (Fig. 1).
In addition, among each above-mentioned optics 110～150, each lens arra 121,122 for example, and overlapping lens 124, posture (configuration status of each lens axis of each optics 121,122,124 of lighting optical axis A relatively) by changing relative lighting optical axis A constitutes and can adjust the lighting position of (optical axis adjustment) illumination in the illumination light of each liquid crystal panel 151.
In addition, for example, catoptron 133 constitutes the lighting position of the illumination light that can adjust one the liquid crystal panel 151 of (optical axis adjustment) illumination among 3 liquid crystal panels 151 by the posture (configuration status of the normal direction of the reflecting surface of the catoptron 133 of lighting optical axis A relatively) of the relative lighting optical axis A of change.
Further, for example, 3 light incident side polarization plates 152 constitute and can adjust (contrast adjustment) contrast from the projected image of projector 100 by changing the posture (is the configuration status of the rotation direction at center with lighting optical axis A) of relative lighting optical axis A.
For example, control device 100E modulates the light beam that penetrates from light supply apparatus 110 and forms and the corresponding image light of described picture signal by to liquid crystal panel 151 output image signals on liquid crystal panel 151.
(formation of testing fixture)
Fig. 2 is the block scheme of the structure of the image testing device 1 that uses when schematically representing the production of projector 100.And, in Fig. 2, only illustrate main formation and omit other as projector 100.
Image testing device 1 constitutes as shown in Figure 2 to be possessed: signal generator 10; Illuminometer 20 as luminance detection portion; Display part 30; Operating portion 40; Testing fixture body 50 etc.
Operating portion 40 has and for example can utilize keyboard, mouse etc. to carry out the not shown various operation push-buttons of input operation.By implementing the input operation of this operation push-button etc., testing fixture body 50 is suitably moved, and the information that for example shows at display part 30 is implemented the setting etc. of the movement content of testing fixture body 50.And, by the input operation of the operating portion 40 that undertaken by the operator, from operating portion 40 to the suitable operation signal of regulation of testing fixture body 50 outputs.
And, as this operating portion 40, be not limited to the input operation of operation push-button, for example, also can constitute input operation by utilizing touch panel, utilize sound input operation etc., set the various conditions of input.
The control program of storer 52 store predetermined, machine type data and information of handling at control part 51 etc.And, as machine type data, be the information of setting according to each type of projector 100, for example, about the data of approximate expression, about the data of the 1st threshold value and the 2nd threshold value etc.
Light source igniting unit 511 in the input operation of implementing regulation to operating portion 40 by the operator (for example, the input operation of the meaning of " some bright light source " or the meaning of " extinguishing light source ") time, to the supply unit 100D of projector 100 output steering order, supply with or stop supply capability to illuminator 111 by supply unit 100D and implement lighting of illuminator 111 and extinguish.
Image light in the input operation of having implemented regulation to operating portion 40 by the operator (for example forms unit 512, the input operation of the meaning of " implementing the optical axis adjustment; the contrast adjustment ", the input operation of the meaning of " implementing the 1st image inspection of regulation type ", the input operation of the meaning of " implementing the 2nd image inspection of regulation type ") time, to steering order such as output such as the control device 100E of signal generator 10, projector 100 etc., on each liquid crystal panel 151, form complete black or complete white image light.And, utilize projection lens 100B that the complete black or complete white image light that forms at optical devices body 150A is amplified and project screen S c, on screen S c, show complete black or complete white projected image.
By from signal generator 10 to illuminometer 20 output image signals, each illumination of the complete black or complete white projected image that illuminometer 20 is detected show on screen S c, the 1st contrast value computing unit 513 is calculated contrast value (below be called the 1st contrast value) according to each illuminometer.Particularly, the 1st contrast value computing unit 513 calculates divided by the value of the illumination of full projected image of deceiving the illumination of white full projected image as the 1st contrast value.And the 1st contrast value computing unit 513 checks that the identification number (for example, producing number) and the information of identification type of the projector 100 of object are stored in storer 52 etc. explicitly to the 1st contrast value that calculates and conduct.
The 1st fine or not identifying unit 514 is read the 1st corresponding threshold value of type of checking the projector 100 of object with conduct from storer 52, the 1st contrast value and the 1st threshold value of utilizing the 1st contrast value computing unit 513 to calculate compared, judge quality as the projector 100 of checking object.
The 2nd contrast value computing unit 515 and above-mentioned the 1st contrast value computing unit 513 roughly the same ground, by from control device 100E output image signal, each illumination of the complete black or complete white projected image that illuminometer 20 is detected show on screen S c is calculated contrast value (below be called the 2nd contrast value) according to each illuminometer.And the 2nd contrast value computing unit 515 checks that the identification number (for example, producing number) and the information of identification type of the projector 100 of object are stored in storer 52 etc. explicitly to the 2nd contrast value that calculates and conduct.
The 2nd fine or not identifying unit 516 and above-mentioned the 1st fine or not identifying unit 514 are roughly similarly, read the 2nd corresponding threshold value of type of checking the projector 100 of object with conduct from storer 52, to compare in the 2nd contrast value and the 2nd threshold value that the 2nd contrast value computing unit 515 calculates, judge quality as the projector 100 of checking object.
Approximate expression/threshold calculations unit 517 by the operator when operating portion 40 has been implemented the input operation (for example, the input operation of the meaning of " setting the 1st threshold value of regulation type ") of regulation, calculate the 1st threshold value and be stored in storer 52.
(production method of projector)
The production method (comprising inspection method) of above-mentioned projector 100 is described then, with reference to the accompanying drawings.
Fig. 3 is the process flow diagram of the production method of explanation projector 100.
At first, the operator is provided with projection lens 100B, optical unit 100C and supply unit 100D etc. to constituting the lower house of outer vanning body 100A.In addition, the illuminator 111 (step S1) of operator's electric connection of power supply device 100D and formation optical unit 100C.
After the step S1, the operator is by the not shown cable electric connection of power supply device 100D and the testing fixture body 50 of composing images testing fixture 1, and is connected electrically in each liquid crystal panel 151 that is provided with in the optical unit 100C and the signal generator 10 of composing images testing fixture 1 via signal wire Si.And the operator is as follows, implements optical axis adjustment and contrast adjustment (step S2).
At first, the operator implements the input operation of the meaning of " some bright light source " at operating portion 40.So light source igniting unit 511 to supply unit 100D output steering order, is lighted illuminator 111 according to the above-mentioned input operation to operating portion 40.
Then, the operator implements the input operation of the meaning of " implementing the optical axis adjustment, the contrast adjustment " at operating portion 40.And image light forms unit 512 according to the above-mentioned input operation to operating portion 40, to signal generator 10 output steering orders, forms complete white image light on each liquid crystal panel 151.
Then,,, adjust each lens arra 121,122, overlapping lens 124, and the posture (optical axis adjustment) of the relative lighting optical axis A of catoptron 133 etc. Yi Bian utilize not shown adjustment anchor clamps on one side the operator confirms the projected image that shows on screen S c.In addition, while the operator confirms that the projected image that shows adjusts the posture of the relative lighting optical axis A of each light incident side polarization plates 152 (contrast adjustment) on screen S c.So the operator is after optical axis adjustment and contrast adjustment, and is fixing with respect to used for optical part casing 160 each optics 121,122,124,133,152.And each optics beyond each optics 121,122,124,133,152 is fixing with respect to used for optical part casing 160 in advance.
After the step S2, the operator implements the input operation of the meaning of " implementing the 1st image inspection of regulation type " at operating portion 40.So control part 51 is read the control program that is stored in storer 52, carry out processing shown below (step S3: the 1st image is checked operation).
Fig. 4 is the process flow diagram that explanation the 1st image is checked operation S3.
At first, image light forms unit 512 to signal generator 10 output steering orders, forms complete white image light (step S31) on each liquid crystal panel 151.
After the step S31, the 1st contrast value computing unit 513 makes illuminometer 20 detect illumination (step S32).
After the step S32, image light forms unit 512 to signal generator 10 output steering orders, forms complete black image light (step S33) on each liquid crystal panel 151.
After the step S33, the 1st contrast value computing unit 513 makes illuminometer 20 detect illumination (step S34).
Above Shuo Ming step S31, S33 are equivalent to the 1st image light of the present invention and form step.In addition, step S32, S34 are equivalent to the 1st luminance detection step of the present invention.
After the step S34, the 1st contrast value computing unit 513 calculates the 1st contrast value (step S35: the 1st contrast value calculation procedure) according to each illumination that detects at each step S32, S34.Then, the 1st contrast value computing unit 513 is stored in storer 52 etc. explicitly the 1st contrast value that calculates and as the identification number of the projector 100 of checking object and the information of identification type.
After the step S35, the 1st fine or not identifying unit 514 is read the 1st corresponding threshold value of type of checking the projector 100 of object with conduct among the 1st threshold value that is stored in storer 52 in advance by approximate expression/threshold calculations unit 517 calculating.And, about computing method based on the 1st threshold value of approximate expression/threshold calculations unit 517, narration in the back.So the 1st fine or not identifying unit 514 is judged quality (the step S36: the 1st fine or not determination step) of projector 100 (optical devices body 150A) relatively in step S35 the 1st contrast value that calculates and the 1st threshold value of reading.For example, the 1st fine or not identifying unit 514 is under the situation of the 1st contrast value more than or equal to the 1st threshold value, and being judged to be is certified products, and the information that is the meaning of certified products is presented at display part 30.In addition, for example, the 1st fine or not identifying unit 514 is judged to be unacceptable product under the situation of the 1st contrast value less than the 1st threshold value, the information of the meaning of unacceptable product is shown at display part 30.So the operator is according to the information that shows at display part 30, confirming as is under the situation of certified products, advances to next operation.On the one hand, the operator is under the situation of unacceptable product confirming as, and optical devices body 150A is taken out from used for optical part casing 160 change.Then, carry out above-mentioned step S31～S36 once more.
After the step S3, the operator takes off signal wire Si from each liquid crystal panel 151, and other each member such as control device 100E is set, and projector 100 is assembled into the state (step S4) of product.
After the step S4, the operator is electrically connected control device 100E and testing fixture body 50 by not shown cable.The operator implements the input operation of the meaning of " implementing the 2nd image inspection of regulation type " at operating portion 40 then.So control part 51 is read the control program that is stored in storer 52, carry out processing shown below (step S5: the 2nd image is checked operation).
Fig. 5 is the process flow diagram that explanation the 2nd image is checked operation S5.
And the 2nd image is checked operation S5 as shown in Figure 5, checks that with the 1st above-mentioned image operation S3 implements roughly the samely.The 2nd image checks that the operation S5 point different with the 1st image inspection operation S3 is as follows.
Step S51, among the S53 (the 2nd image light forms step), image light forms unit 512 by to control device 100E output steering order, forms complete white image light, complete black image light etc. on each liquid crystal panel 151.
At step S52, S54 (the 2nd luminance detection step), among the step S55 (the 2nd contrast value calculation procedure), the 2nd contrast value computing unit 515 makes illuminometer 20 detect illumination, and calculates the 2nd contrast value.
In step S56 (the 2nd fine or not determination step), the 2nd fine or not identifying unit 516 is judged the quality of projector 100 (optical devices body 150A).Here, the 2nd fine or not identifying unit 516 is read the 2nd corresponding threshold value of type of checking the projector 100 of object with conduct among the 2nd threshold value that is stored in storer 52.So the 2nd fine or not identifying unit 516 is judged the quality of projector 100 relatively in step S55 the 2nd contrast value that calculates and the 2nd threshold value of reading.And the processing identical with the above-mentioned processing based on the 1st fine or not identifying unit 514 implemented in the judgement of quality and to the demonstration of display part 30.
Below, the computing method based on the 1st threshold value of approximate expression/threshold calculations unit 517 are described.
Fig. 6 is the figure that is used to illustrate based on the computing method of the 1st threshold value of approximate expression/threshold calculations unit 517.
At first, the operator utilizes the projector 100 of many (are 100 in present embodiment) of same model, makes image testing device 1 carry out the 1st above-mentioned image and checks operation S3, and each the 1st contrast value of 100 are stored in storer 52 etc.
In addition, the operator utilizes described 100 projector 100, makes image testing device 1 carry out the 2nd above-mentioned image and checks operation S5, and each the 2nd contrast value of 100 are stored in storer 52 etc.
Then, the operator implements the input operation of the meaning of " setting the 1st threshold value of regulation type " at operating portion 40.
Approximate expression/threshold calculations unit 517 is according to the above-mentioned input operation to operating portion 40, read and be stored in described 100 respectively the 1st contrast value of storer 52 grades and each 2nd contrast value corresponding with each the 1st contrast value, as shown in Figure 6, calculate 1 approximate expression Ap of each the 1st contrast value of expression and Ge Di 2 contrast value correlationships.
Then, approximate expression/threshold calculations unit 517 is read the 2nd threshold value of regulation type from storer 52, utilize the approximate expression correction corresponding with described regulation type the value calculating of the 2nd threshold value as the 1st threshold value.Then, approximate expression/threshold calculations unit 517 is stored in storer 52 explicitly to the 1st threshold value that calculates and the information of discerning type.
According to above-mentioned present embodiment, has following effect.
In the present embodiment, when setting is used for the 1st threshold value of the 1st image inspection operation S3, by calculating the approximate expression Ap of each the 1st contrast value of expression and Ge Di 2 contrast value correlationships, can find the relation that outputs to the picture signal of each liquid crystal panel 151 and the signal level of the picture signal that outputs to each liquid crystal panel 151 from control device 100E from signal generator 10 via signal wire Si.And by utilizing approximate expression Ap to checking that at the 2nd image the value that the 2nd threshold value of using among the operation S5 has carried out revising sets as the 1st threshold value, can make the 1st threshold value is to have offset the rational threshold value of influence of the resistance value etc. of signal wire Si.And, in the 1st fine or not determination step S36, implement fine or not judgement by the 1st threshold value that utilization has been carried out setting as described above, can precision implement the quality judgement well, improve the production efficiency of projector 100.
The 2nd embodiment
Then, the 2nd embodiment of the present invention is described with reference to the accompanying drawings.
In the following description, give same-sign, omit or simplify its detailed description structure and the identical components identical with described the 1st embodiment.
Fig. 7 is the block scheme of structure of schematically representing the image testing device 1 ' of the 2nd embodiment.
In described the 1st embodiment, check among the operation S3 at the 1st image, the 1st fine or not identifying unit 514 is judged quality according to utilizing the approximate expression of the correlationship of expression the 1st contrast value and the 2nd contrast value that the 2nd threshold value has been carried out the 1st threshold value of revising by approximate expression/threshold calculations unit 517.
To this in the 2nd embodiment, control part 51 ' as shown in Figure 7, be omitted in approximate expression/threshold calculations unit 517 that described the 1st embodiment is illustrated, possess: the approximate expression computing unit 517 ' of the calculating approximate expression that is illustrated at described the 1st embodiment; With the 1st contrast value that utilizes described approximate expression correction to calculate, calculate the contrast value amending unit 518 of revising contrast value at the 1st contrast value computing unit 513.And the 1st fine or not identifying unit 514 ' is relatively revised contrast value and is stored in the 2nd corresponding threshold value of type storer 52 and projector 100 conduct inspection object, judges the quality of projector 100 (optical devices body 150A).That is, storer 52 ' is not stored the relevant data of the 1st threshold value that are illustrated with described the 1st embodiment.And, about other formation, also identical with described the 1st embodiment.
Here, approximate expression computing unit 517 ' adopts and the identical method calculating approximate expression Ap of computing method based on the 1st threshold value of approximate expression/threshold calculations unit 517 that is illustrated at described the 1st embodiment.And approximate expression computing unit 517 ' is stored in storer 52 ' to the approximate expression Ap that calculates explicitly with the information of discerning type.
Below, the production method of the projector 100 of the 2nd embodiment is described with reference to the accompanying drawings.
And the production method of present embodiment is compared with the production method that is illustrated at described the 1st embodiment, and only the 1st image is checked the operation difference, checks operation S3 ' so the 1st image only is described.
Fig. 8 is the process flow diagram that the 1st image of explanation the 2nd embodiment is checked operation S3 '.
Control part 51 ' is according to the input operation to the meaning of operating portion 40 " implementing the 1st image inspection of regulation type ", with described the 1st embodiment in the same manner, implementation step S31～S35.
After the step S35, contrast value amending unit 518 is from utilizing approximate expression computing unit 517 ' and calculate and be stored in advance among the approximate expression of storer 52, reads and the corresponding approximate expression of type as the projector 100 of inspection object.And contrast value amending unit 518 calculates and revises contrast value (step S37: contrast value correction step) at the 1st contrast value that step S35 utilizes the approximate expression corrected Calculation of reading.
After the step S37, the 1st fine or not identifying unit 514 ' is being stored among the 2nd threshold value of storer 52 ', reads and the 2nd corresponding threshold value of type as the projector 100 of checking object.And the 1st fine or not identifying unit 514 ' is judged quality (the step S38: the 1st fine or not determination step) of projector 100 (optical devices body 150A) relatively in step S37 correction contrast value that calculates and the 2nd threshold value of reading.And, the identical processing of processing of establishing the judgement of quality and implementing to the demonstration of display part 30 to carry out with the 1st fine or not identifying unit 514 that is illustrated at described the 1st embodiment.
Following effect is arranged in the above-described 2nd embodiment.
In the present embodiment, check among the contrast value correction step S37 of operation S3 ' at the 1st image, by utilizing approximate expression Ap calculate to revise the correction contrast value of the 1st contrast value, can make the 1st contrast value is the value (correction contrast value) of influence of having offset the resistance value etc. of signal wire Si.And in the 1st fine or not determination step S38, correction contrast value and the 2nd threshold value passing through as mentioned above relatively to calculate are implemented fine or not judgement, can precision implement the quality judgement well, improve the production efficiency of projector 100.
And the present invention is not limited to aforesaid embodiment, and the distortion in the scope that can reach purpose of the present invention, improvement etc. all are included among the present invention.
In described each embodiment, though having adopted, control part 51,51 ' implements the formation that the 1st image is checked operation S3, S3 ' and the 2nd image inspection operation S5, but be not limited thereto, while also can constitute the formation that the operator confirms that the value of illuminometer 20 is implemented.
In described each embodiment, be not limited to Fig. 3 to Fig. 5, flow process shown in Figure 8 also can suitably change the order of operation.
In described each embodiment, the formation of projector 100 is not limited to the formation that is illustrated at described each embodiment.
For example, though light supply apparatus 110 is made of the light supply apparatus of Discharge illuminating type, Light Emitting Diode), the various solid-state light emitting elements of organic EL, silicon light-emitting component etc. but be not limited thereto, also can adopt laser diode, LED (light emitting diode:.
In addition,, also can omit look dissociated optical device 130,3 described solid-state light emitting elements that penetrate 3 coloured light are respectively constituted as light supply apparatus though only use a light supply apparatus 110 to utilize look dissociated optical device 130 to be separated into 3 coloured light.
Further,, be not limited thereto, also can constitute the projector of the one-board that possesses 1 liquid crystal panel though projector 100 is made of the projector of the three-plate type that possesses 3 liquid crystal panels 151.In addition, also can constitute the projector that possesses 2 liquid crystal panels, possess projector more than or equal to 4 liquid crystal panel.
In addition, though adopted the liquid crystal panel of the light entrance face infiltration type different, also can adopt the liquid crystal panel of the light entrance face reflection-type identical with light emergence face with light emergence face.
Further, though adopted liquid crystal panel, also can adopt liquid crystal such as the equipment optic modulating device in addition that has utilized micro mirror as optic modulating device.At this moment, can omit the polarization plates 152,153 of light beam light incident side and light beam emitting side.
The present invention be owing to can precision in the 1st image inspection implement quality well and judge, thus can be used in be used to demonstrate, the image checking method of the projector of home theater etc.
Claims (4)
1. the image checking method of a projector, this projector possesses: light supply apparatus, thereby form the optic modulating device of image light according to the light beam that image signal modulation penetrates from described light supply apparatus, amplify the projector optical apparatus of the described image light of projection and make the control device that on described optic modulating device, forms image light to described optic modulating device output image signal;
This image checking method is characterised in that, comprising:
Form the image light of regulation and check that the 1st image of described image light checks operation to described optic modulating device output image signal via signal wire from the signal generator of described projector outside; From described control device to described optic modulating device output image signal, form the image light of regulation and check that the 2nd image of described image light checks operation;
Wherein, described the 1st image checks that operation comprises: from described signal generator via signal wire to described optic modulating device output image signal, make the 1st image light that forms complete black image light and complete white image light respectively form step; Detect respectively in described the 1st image light and form described complete black image light and described the 1st luminance detection step of the illumination of white image light entirely that step forms; Calculate the 1st contrast value calculation procedure of contrast value according to each the described illuminometer that detects in described the 1st luminance detection step; Compare the described contrast value and the 1st threshold value that calculate in described the 1st contrast value calculation procedure, thereby judge the 1st fine or not determination step of quality;
Described the 2nd image checks that operation comprises: the 2nd image light that forms complete black image light and complete white image light to described optic modulating device output image signal, respectively from described control device forms step; Detect respectively in described the 2nd image light and form described complete black image light and described the 2nd luminance detection step of the illumination of white image light entirely that step forms; Calculate the 2nd contrast value calculation procedure of contrast value according to each the described illuminometer that detects in described the 2nd luminance detection step; Compare the described contrast value and the 2nd threshold value that calculate in described the 2nd contrast value calculation procedure, thereby judge the 2nd fine or not determination step of quality;
Described the 1st threshold value is to use the value of described the 2nd threshold value of approximate expression correction, this approximate expression is expression by a plurality of described optic modulating devices being implemented described the 1st image light forms each contrast value that step, described the 1st luminance detection step and described the 1st contrast value calculation procedure obtain and by described a plurality of optic modulating devices being implemented the correlationship that described the 2nd image light forms each contrast value that step, described the 2nd luminance detection step and described the 2nd contrast value calculation procedure obtain.
2. the image checking method of a projector, this projector possesses: light supply apparatus, thereby form the optic modulating device of image light according to the light beam that image signal modulation penetrates from described light supply apparatus, amplify the projector optical apparatus of the described image light of projection and make the control device that on described optic modulating device, forms image light to described optic modulating device output image signal;
This image checking method is characterised in that, comprising:
Form the image light of regulation and check that the 1st image of described image light checks operation to described optic modulating device output image signal via signal wire from the signal generator of described projector outside; From described control device to described optic modulating device output image signal, form the image light of regulation and check that the 2nd image of described image light checks operation;
Wherein, described the 1st image checks that operation comprises: from described signal generator via signal wire to described optic modulating device output image signal, make the 1st image light that forms complete black image light and complete white image light respectively form step; Detect respectively in described the 1st image light and form described complete black image light and described the 1st luminance detection step of the illumination of white image light entirely that step forms; Calculate the 1st contrast value calculation procedure of contrast value according to each the described illuminometer that detects in described the 1st luminance detection step; The described contrast value that the approximate expression correction of utilization regulation calculates in described the 1st contrast value calculation procedure calculates the contrast value correction step of revising contrast value; Relatively the correction contrast value that calculates in described contrast value correction step and the threshold value of regulation, thus judge the 1st fine or not determination step of quality;
Described the 2nd image checks that operation comprises: the 2nd image light that forms complete black image light and complete white image light to described optic modulating device output image signal, respectively from described control device forms step; Detect respectively in described the 2nd image light and form described complete black image light and described the 2nd luminance detection step of the illumination of white image light entirely that step forms; Calculate the 2nd contrast value calculation procedure of contrast value according to each the described illuminometer that detects in described the 2nd luminance detection step; The relatively described contrast value that calculates in described the 2nd contrast value calculation procedure and the threshold value of described regulation, thus judge the 2nd fine or not determination step of quality;
The approximate expression of described regulation is expression by a plurality of described optic modulating devices being implemented described the 1st image light forms each contrast value that step, described the 1st luminance detection step and described the 1st contrast value calculation procedure obtain and by described a plurality of optic modulating devices being implemented the approximate expression that described the 2nd image light forms the correlationship of each contrast value that step, described the 2nd luminance detection step and described the 2nd contrast value calculation procedure obtain.
3. image testing device, thereby be the light beam that possesses light supply apparatus, penetrate from described light supply apparatus according to the image signal modulation optic modulating device that forms image light, the projector optical apparatus of amplifying the described image light of projection, make the image testing device of projector that forms the control device of image light at described optic modulating device to described optic modulating device output image signal, it is characterized in that possessing:
Via signal wire to described optic modulating device output image signal, form the signal generator of complete black image light and complete white image light respectively; The luminance detection portion of the illumination of the image light that detection is formed by described optic modulating device; Control part according to the illumination check image light that detects in described luminance detection portion;
Wherein, described control part possesses:
By from described signal generator via the signal wire output image signal, each illumination of complete black image light that described luminance detection portion is detected form on described optic modulating device and complete white image light is calculated the 1st contrast value computing unit of contrast value according to described each illuminometer;
Relatively contrast value and the 1st threshold value of being calculated by described the 1st contrast value computing unit judged the 1st fine or not fine or not identifying unit;
By from described control device output image signal, each illumination of complete black image light that described luminance detection portion is detected form on described optic modulating device and complete white image light is calculated the 2nd contrast value computing unit of contrast value according to described each illuminometer;
Contrast value and the 2nd threshold value of relatively utilizing described the 2nd contrast value computing unit to calculate are judged the 2nd fine or not fine or not identifying unit;
Described the 1st threshold value is to use the value of described the 2nd threshold value of approximate expression correction, this approximate expression each contrast value that to be expression calculated by described the 1st contrast value computing unit a plurality of described optic modulating devices and described a plurality of optic modulating devices are utilized the correlationship of each contrast value that described the 2nd contrast value computing unit calculates.
4. image testing device, thereby be the light beam that possesses light supply apparatus, penetrate from described light supply apparatus according to the image signal modulation optic modulating device that forms image light, the projector optical apparatus of amplifying the described image light of projection and make the image testing device of projector that forms the control device of image light at described optic modulating device to described optic modulating device output image signal, it is characterized in that possessing:
To described optic modulating device output image signal, form the signal generator of complete black image light and complete white image light respectively; The luminance detection portion of the illumination of the image light that detection is formed by described optic modulating device; Control part according to the illumination check image light that detects in described luminance detection portion;
Wherein, described control part possesses:
By each illumination of the complete black image light that described luminance detection portion detected form and complete white image light, calculate the 1st contrast value computing unit of contrast value according to described each illuminometer at described optic modulating device;
Utilize the approximate expression correction of stipulating to calculate the contrast value amending unit of correction contrast value by the contrast value of described the 1st contrast value computing unit calculating;
Relatively utilize the correction contrast value of described contrast value amending unit calculating and the threshold value of regulation, judge the 1st fine or not identifying unit of quality;
By from described control device output image signal, each illumination of complete black image light that described luminance detection portion is detected form on described optic modulating device and complete white image light is calculated the 2nd contrast value computing unit of contrast value according to described each illuminometer;
Relatively utilize the contrast value of described the 2nd contrast value computing unit calculating and the threshold value of described regulation, judge the 2nd fine or not identifying unit of quality;
The approximate expression of described regulation each contrast value that to be expression calculated by described the 1st contrast value computing unit a plurality of described optic modulating devices and described a plurality of optic modulating devices are utilized the approximate expression of the correlationship of each contrast value that described the 2nd contrast value computing unit calculates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100891665A CN101271253A (en) | 2007-03-20 | 2007-03-20 | Image detecting method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100891665A CN101271253A (en) | 2007-03-20 | 2007-03-20 | Image detecting method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101271253A true CN101271253A (en) | 2008-09-24 |
Family
ID=40005297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100891665A Pending CN101271253A (en) | 2007-03-20 | 2007-03-20 | Image detecting method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101271253A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185727A (en) * | 2011-12-31 | 2013-07-03 | 芝浦机械电子装置股份有限公司 | Inspection system and inspection method |
| CN113156408A (en) * | 2021-03-19 | 2021-07-23 | 奥比中光科技集团股份有限公司 | Contrast calibration method, device and equipment |
| CN113554560A (en) * | 2021-06-22 | 2021-10-26 | 歌尔光学科技有限公司 | Method, device, equipment, system and medium for testing illumination of projection picture |
-
2007
- 2007-03-20 CN CNA2007100891665A patent/CN101271253A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185727A (en) * | 2011-12-31 | 2013-07-03 | 芝浦机械电子装置股份有限公司 | Inspection system and inspection method |
| CN103185727B (en) * | 2011-12-31 | 2015-05-13 | 芝浦机械电子装置股份有限公司 | Inspection system and inspection method |
| CN113156408A (en) * | 2021-03-19 | 2021-07-23 | 奥比中光科技集团股份有限公司 | Contrast calibration method, device and equipment |
| CN113156408B (en) * | 2021-03-19 | 2024-07-12 | 奥比中光科技集团股份有限公司 | Contrast calibration method, device and equipment |
| CN113554560A (en) * | 2021-06-22 | 2021-10-26 | 歌尔光学科技有限公司 | Method, device, equipment, system and medium for testing illumination of projection picture |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6628248B2 (en) | Image display apparatus and method for compensating display image of image display apparatus | |
| CN101105913B (en) | Aging compensation for display boards comprising light emitting elements | |
| CN101750856B (en) | Projection apparatus, and projection method | |
| US8714754B2 (en) | Projector having condition indicating unit for displaying specified focusing condition and control method of projector | |
| CN100568080C (en) | Optical projection system and projector | |
| CN103543582B (en) | The light-emitting control method of projector and projector | |
| US8272750B2 (en) | Projection-type image display apparatus | |
| WO2012073649A1 (en) | Multi-projection display system and method of adjusting brightness thereof | |
| CN104793453A (en) | Light source apparatus and image display apparatus | |
| CN103543581A (en) | Projector and light emission control method in the projector | |
| CN1808265A (en) | Projection-type display apparatus and multiscreen display apparatus | |
| CN104749864B (en) | Image display device and its control method | |
| CN101271253A (en) | Image detecting method and device | |
| CN111613157A (en) | Mura repair test method of display panel, display panel and display device | |
| US6837582B2 (en) | Image adjuster of projector and image adjusting method of image display | |
| US9019382B2 (en) | Diagnosis unit for an electronic camera and camera system | |
| JP2020127203A (en) | Information generation device for adjustment, adjustment work support device and adjustment device | |
| JPH11234706A (en) | Adjustment device for video image of television camera | |
| US11231642B2 (en) | Light source module, projector using the same and light source control method | |
| CN112748118B (en) | Detection system and detection method for display panel | |
| JP6840619B2 (en) | Discrimination information generator, adjustment information generator, adjustment work auxiliary device and adjustment device | |
| KR101091209B1 (en) | Projection system | |
| JP4715244B2 (en) | Projection device | |
| JP2008241494A (en) | Method and apparatus of inspecting image | |
| TWI276907B (en) | Color wheel calibrating method, color wheel module and projection apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080924 |