JP2020127203A - Information generation device for adjustment, adjustment work support device and adjustment device - Google Patents

Abstract

To surely and easily adjust an emission quantity of each of lights in such a manner that any color or lightness is recognized.SOLUTION: An information generation device for adjustment executes: measurement processing (step 21) for measuring a tristimulus value for each of laser lights L outputted from lasers (light sources); adjustment value specification processing (step 22) for calculating a target adjustment value capable of specifying a target tristimulus value corresponding to a target chromaticity value and a target photometric quantity for each of the laser lights L based on the target chromaticity value, the target photometric quantity and the measured tristimulus values; and adjustment range specification processing (step 23) for calculating an adjustment completion discrimination range (target adjustment value range) capable of specifying such a target tristimulus value range that the chromaticity value is settled within a range of a chromaticity value allowable error in relative to the target chromaticity value and that the photometric quantity is settled within a range of a photometric quantity allowable error in relative to the target photometric quantity for each of the laser lights which should be outputted from the lasers, based on the target chromaticity value, the target photometric quantity, the chromaticity value allowable error, the photometric quantity allowable error and the target adjustment values. Information for adjustment is generated based on the adjustment completion discrimination ranges.SELECTED DRAWING: Figure 2

Description

The present invention provides an adjustment information generation device that generates adjustment information for adjusting the amount of light emitted from each light source in a light output device so that any color and any brightness can be recognized, and The present invention relates to an adjustment work assisting device and an adjusting device configured by including such an adjustment information generating device.

For example, in the following patent documents, an RGB adjustment coefficient memory that stores an adjustment coefficient when a target chromaticity value is obtained by performing color adjustment as an adjustment final value, and the adjustment final value is reflected in a gamma table. An invention of a television receiver (hereinafter, also simply referred to as “image receiver”) including a microcomputer that creates an adjustment gamma table and a gamma processing device that performs gamma processing based on the adjustment gamma table is disclosed. When adjusting the white balance, this receiver introduces an adjustment video signal from the outside to display an adjustment pattern, or stores adjustment-specific video data in memory to display the adjustment pattern. Instead, a configuration for displaying an adjustment pattern (image) using a gamma table used in normal image processing is adopted.

When performing white balance adjustment in this receiver, first, the white balance adjustment start key is operated. In response to this, the microcomputer starts the processing of reading the adjustment coefficient from the RGB adjustment coefficient memory and generating the adjustment gamma table (correction processing of the gamma table). At this time, since the adjustment coefficients of R, G, and B have the same value immediately after the start of processing (unadjusted state), the gamma table of the same output value for each of R, G, and B is used. Is generated. When such an adjustment gamma table is set in the gamma processing device, a uniform luminance pattern (raster image) is displayed over the entire area of the liquid crystal module. Therefore, the adjustment work is executed by using this image as a pattern for adjustment.

Specifically, the adjusting operator measures the chromaticity values of the image (pattern) displayed on the liquid crystal module with a chromaticity meter, and measures R, G, B so that the target chromaticity values are measured. Change the adjustment factor of. At this time, as an example, the adjustment coefficients are respectively adjusted so that the output value of the chromaticity meter (chromaticity value: chromaticity diagram coordinates) becomes the target value (for example, x=0.300, y=0.300). change. At this time, when any one of the R, G, and B adjustment coefficients is changed, the microcomputer stores the changed adjustment coefficient value in the RGB adjustment coefficient memory and returns to the adjustment coefficient reading process to perform the adjustment. Generate the gamma table for use again. As a result, a new raster image in which the output value of the gamma table is changed according to the change of the adjustment coefficient is displayed on the liquid crystal module, and the chromaticity value of the image is measured by the chromaticity meter.

On the other hand, when the adjustment coefficient is changed so that the chromaticity value of the displayed image becomes a value within the allowable range with respect to the target value, the microcomputer stores the adjustment coefficient in the RGB adjustment coefficient memory as the adjusted final value. .. As a result, the target chromaticity value is obtained (a state in which an image with a desired hue can be displayed), and the white balance adjustment work is completed.

JP-A-2006-325014 (page 3-5, FIG. 1-6)

However, the white balance adjusting method implemented in the image receiving device disclosed in the above patent documents has the following problems. That is, in the above adjustment method, a uniform luminance pattern (raster image) is displayed over the entire area of the liquid crystal module, and the target chromaticity value is measured while measuring the chromaticity value with a chromaticity meter. In addition, the R adjustment coefficient, the G adjustment coefficient, and the B adjustment coefficient are changed.

In this case, for a person who is unfamiliar with this kind of adjustment work, for example, in the adjustment work in which the chromaticity values such as “x=0.300, y=0.300” are the target values, the measurement is performed by a chromaticity meter. When the chromaticity value is “x=0.296, y=0.329”, what values should the R adjustment coefficient, the G adjustment coefficient, and the B adjustment coefficient be? It is difficult to decide whether to increase or decrease the value, and how much to change. Therefore, by appropriately changing (increasing or decreasing) one of the R, G, and B adjustment coefficients, and comparing the chromaticity value measured in that state with the chromaticity value before the change. It is necessary to repeatedly change the adjustment coefficient and measure the chromaticity value alternately many times while determining whether or not the change of the adjustment coefficient was correct.

Therefore, in the white balance adjustment method disclosed in the above-mentioned patent document, it is very difficult for a person unfamiliar with the adjustment work to adjust the chromaticity value to the target value. .. Further, even a person who is accustomed to the adjustment work can obtain a chromaticity value consisting of two parameters “x” and “y” by changing each adjustment coefficient (three adjustment items) of R, G, and B. Since it is very difficult to match the values, there is a problem that the adjustment work takes a very long time.

The present invention has been made in view of the above problems, and adjustment information generation that can surely and easily adjust the amount of light emitted from each light source so that an arbitrary color and arbitrary brightness are recognized. An object of the present invention is to provide a device, an adjustment work assisting device, and an adjusting device that includes such an adjusting information generating device and is configured to adjust the amount of light emitted from each light source.

In order to achieve the above object, the adjustment information generating apparatus according to claim 1 changes the amount of light emitted from a red light source, the amount of light emitted from a green light source, and the amount of light emitted from a blue light source. The adjustment information for adjusting the amount of light emitted from each light source is adjusted so that any color and any brightness can be recognized with the light output device that arbitrarily changes the color and brightness as an adjustment target. In the adjustment information generating device including a processing unit that generates, the processing unit measures a tristimulus value for each light output from each of the light sources, and a target corresponding to the arbitrary color. Based on the chromaticity value, the target photometric amount corresponding to the arbitrary brightness, and the tristimulus values measured by the measurement process, the target chromaticity value and the target chromaticity value for each light to be output from each light source. Adjustment value specifying processing for calculating target adjustment values capable of specifying the target tristimulus values corresponding to the target photometric amount, the target chromaticity value, the target photometric amount, prespecified chromaticity value allowable error, and prespecified Based on the measured photometric amount allowable error and each of the target adjustment values, for each light to be output from each of the light sources, a chromaticity value within the range of the chromaticity value allowable error for the target chromaticity value, and By executing the adjustment range specifying process for calculating the target adjustment value range capable of specifying the target tristimulus value range that is the photometric amount within the range of the photometric amount allowable error for the target photometric amount, the adjustment range specifying process is performed. The adjustment information is generated based on the calculated target adjustment value ranges.

In addition, the adjustment information generating apparatus according to claim 2 changes color and brightness by changing the amount of light emitted from the red light source, the amount of light emitted from the green light source, and the amount of light emitted from the blue light source. A processing unit that generates adjustment information for adjusting the amount of light emitted from each light source so that any color and any brightness can be recognized with the light output device that arbitrarily changes In the adjustment information generating device provided, the processing unit, a measurement process for measuring the tristimulus value for each light output from each light source, a target chromaticity value corresponding to the arbitrary color, the Corresponding to the target chromaticity value and the target photometric amount for each light to be output from each of the light sources, based on the target photometric amount corresponding to arbitrary brightness and the tristimulus values measured by the measurement process. Adjustment value specifying processing for respectively calculating target adjustment values capable of specifying the target tristimulus value, and a predicted chromaticity value corresponding to a virtual adjustment value obtained by changing the target adjustment value within a predetermined adjustment value change range, and The process of calculating the predicted photometric amount is performed a plurality of times by randomly changing the target adjustment value, and then the predicted chromaticity value within the range of the chromaticity value allowable error specified in advance for the target chromaticity value. Is calculated, and the predicted photometric amount within the range of the pre-specified photometric amount allowable error for the target photometric amount is the calculated lower limit value and the highest value among the calculated virtual adjustment values. And an adjustment range specifying process for specifying a target adjustment value range with the upper limit value as an upper limit value, and the adjustment information is generated based on each of the target adjustment value ranges specified by the adjustment range specifying process.

The adjustment work auxiliary device according to claim 3 is the adjustment work auxiliary device provided with the adjustment information generating device according to claim 1 or 2, wherein the processing unit emits light from each of the light sources. It is possible to specify the first determination process for determining whether the emission amount corresponds to the adjustment value within the target adjustment value range identified based on the adjustment information, and the result of the first determination process. The first notification process of notifying is executed.

Further, in the adjusting work assisting device according to claim 4, in the adjusting work assisting device according to claim 3, the processing unit causes the combined light of the lights from the respective light sources to have the chromaticity value with respect to the target chromaticity value. A second determination process is performed to determine whether the chromaticity value is within the allowable error range and whether the photometric amount is within the allowable photometric amount error range with respect to the target photometric amount. At the same time, the combined light is a chromaticity value within the range of the chromaticity value allowable error for the target chromaticity value, and a photometric amount within the range of the photometric amount allowable error for the target photometric amount. When the determination is made, the second notification processing is executed to notify that the adjustment of the emission amount of the light from each light source is completed in a specifiable manner.

Further, the adjustment work auxiliary device according to claim 5 is the adjustment work auxiliary device according to claim 4, wherein the processing section in the first determination process corresponds to the emission amount corresponding to the adjustment value within the target adjustment value range. And a first condition for determining that the chromaticity value is not within the range of the chromaticity value allowable error with respect to the target chromaticity value in the second determination process, and the first determination In the process, it is determined that the emission amount corresponds to the adjustment value within the target adjustment value range, and in the second determination process, the photometric amount is within the range of the photometric amount allowable error with respect to the target photometric amount. When at least one of the second conditions for determining that the target adjustment value range is not satisfied is specified, the target adjustment value range narrower than the target adjustment value range specified immediately before is specified, and the specified new target adjustment value range is specified. The first determination process and the second determination process are executed again with the new adjustment information as

An adjustment work assisting device according to claim 6 is an adjustment work assisting device comprising the adjustment information generating device according to claim 1 or 2, wherein the processing unit outputs the light from each of the light sources. It is determined whether the emission amount corresponding to the adjustment value within the target adjustment value range is changed by exceeding the emission amount corresponding to the center value of the target adjustment value range specified based on the adjustment information. And a third notification process that notifies the result of the third determination process in a identifiable manner.

An adjustment device according to claim 7 is provided with the adjustment information generation device according to claim 1 or 2, and adjusts the amount of light emitted from each light source so that the arbitrary color and the arbitrary brightness are recognized. Each of the adjusting devices is configured to be adjustable, and the processing unit corresponds to an adjustment value within the target adjustment value range in which an emission amount of light from each of the light sources is specified based on the adjustment information. When the emission amount of light from each light source is not the emission amount corresponding to the adjustment value within the target adjustment value range, a determination process is performed to determine whether the emission amount is reached. After performing the emission amount adjustment process for changing the emission amount of the light by a predetermined change amount, the determination process is performed again.

The adjustment device according to claim 8 is the adjustment device according to claim 7, wherein in the determination process executed by the processing unit after the emission amount adjustment process, the emission amount of light from each of the light sources is the target. When it is determined that the emission amount corresponding to the adjustment value outside the adjustment value range is changed, the change amount for changing the emission amount of the light from each light source at the time of the emission amount adjustment processing to be executed next is immediately changed. The amount of light emitted from each of the light sources is changed to be smaller than the changed amount by changing the amount of light emitted from each of the light sources during the emission amount adjusting process.

In the adjustment information generating device according to claim 1, based on a measurement process for measuring a tristimulus value for each light output from each light source, a target chromaticity value, a target photometric amount, and each measured tristimulus value. , Adjustment value specifying processing for calculating target adjustment values capable of specifying target tristimulus values corresponding to the target chromaticity value and the target photometric amount for each light to be output from each light source, and the target chromaticity value and the target Based on the photometric amount, chromaticity value tolerance, photometric amount tolerance, and each target adjustment value, the chromaticity value within the range of the chromaticity value allowable error for the target chromaticity value for each light to be output from each light source. , And the adjustment range specifying process that calculates the target adjustment value range that can specify the target tristimulus value range that is the photometric amount within the range of the photometric amount allowable error with respect to the target photometric amount. The adjustment information is generated based on each calculated target adjustment value range.

Further, in the adjustment information generating apparatus according to claim 2, a measurement process for measuring a tristimulus value for each light output from each light source, a target chromaticity value, a target photometric amount, and each measured tristimulus value. Based on the above, for each light to be output from each light source, the adjustment value specifying process for calculating the target adjustment value that can specify the target tristimulus value corresponding to the target chromaticity value and the target photometric amount, and the adjustment value change range After changing the target adjustment value randomly and executing the process to calculate the predicted chromaticity value and the predicted photometric amount corresponding to the virtual adjustment value in which the target adjustment value is changed, The predicted chromaticity value within the tolerance range of the chromaticity value is calculated, and the predicted photometric quantity within the tolerance range of the photometric quantity for the target photometric quantity is calculated. In addition, the adjustment range specifying process for specifying the target adjustment value range having the highest value as the upper limit value is executed, and the adjustment information is generated based on each target adjustment value range specified by the adjustment range specifying process.

Therefore, according to the adjustment information generating device of claims 1 and 2, at least each light source is based on the target adjustment value range for each of the three lights (light from each light source) specified based on the adjustment information. When the emission amount of the light from is not the emission amount corresponding to the adjustment value within each target adjustment value range, the target chromaticity value and the target photometric amount are not in the state of being measured (adjustment is It is possible to determine that the output amount of each light is adjusted based on the chromaticity value and the photometric amount measured at that time point and the target chromaticity value and the target photometric amount. Unlike the conventional adjustment method that needs to estimate the necessity or adjustment amount, which emission amount of each light should be changed, and which emission amount of each light should be increased to determine which emission amount. Can be reliably and easily recognized. As a result, even an operator unfamiliar with this kind of adjustment work can easily perform the adjustment work in a short time.

According to the adjustment work auxiliary device of claim 3, whether the emission amount of light from each light source is an emission amount corresponding to the adjustment value within the target adjustment value range specified based on the adjustment information. By executing the first determination process of determining and the first notification process of notifying the result of the first determination process in a identifiable manner, the amount of light emitted from the light source during the adjustment work is within the target adjustment value range. Since it is possible to easily recognize whether or not the emission amount corresponds to the adjustment value of, the adjustment work can be more easily performed even by an operator unfamiliar with this kind of adjustment work.

According to the adjustment work assisting device of claim 4, the combined light of the lights from the respective light sources has a chromaticity value within the range of the chromaticity value permissible error with respect to the target chromaticity value, and the photometric amount permissible with respect to the target photometric amount. When it is determined that the photometric amount is within the range of the error, by executing the second notifying process for notifying that the adjustment of the emission amount of the light from each light source is completed, During the adjustment work for each light from the light source, the chromaticity value of the combined light is the target chromaticity value even if the emission amount of any light is not the emission amount corresponding to the adjustment value within the target adjustment value range. When the photometric amount is within the allowable range of chromaticity value for the value and the photometric amount is within the allowable range of photometric amount for the target photometric amount, that is, when no further adjustment work is required. Moreover, the adjustment work can be promptly ended without continuing the unnecessary adjustment work.

In the adjustment work auxiliary device according to claim 5, it is determined in the first determination process that the emission amount corresponds to the adjustment value within the target adjustment value range, and in the second determination process, the chromaticity with respect to the target chromaticity value. The first condition for determining that the chromaticity value does not fall within the range of the value tolerance, and the first determination process determines that the emission amount corresponds to the adjustment value within the target adjustment value range, and 2 In the determination process, when at least one condition of the second conditions for determining that the photometric amount is not within the range of the photometric amount allowable error with respect to the target photometric amount is satisfied, the target adjustment value range specified immediately before The narrow target adjustment value range is specified, and the first judgment process and the second judgment process are executed again using the specified new target adjustment value range as new adjustment information.

Therefore, according to the adjustment work assisting device of the fifth aspect, for example, the emission amount of light from each light source is adjusted to the emission amount corresponding to the lower limit value or the upper limit value of the target adjustment value range. Even if the chromaticity value of the combined light and/or the photometric amount is not within the target range (at least one of the first condition and the second condition is satisfied), the By performing the adjustment work so that the adjustment value is within the newly specified target adjustment value range, it is possible to surely adjust both the chromaticity value of the combined light and the photometric amount so that they are within the target range. be able to.

According to the adjustment work assisting device of claim 6, the emission amount of the light from each light source is changed to exceed the emission amount corresponding to the center value of the target adjustment value range specified based on the adjustment information. By executing the third determination process for determining whether the emission amount corresponds to the adjustment value within the target adjustment value range and the third notification process for notifying the result of the third determination process in a identifiable manner, When the operator who recognizes that the emission amount of light from the emission amount does not correspond to the adjustment value within the target adjustment value range, when the emission amount is gradually changed during the adjustment work, the specified emission amount is the target adjustment value. The adjustment work will be continued until it is notified that the value exceeds the value corresponding to the center value of the range.Therefore, the time when the emission amount becomes a value corresponding to the adjustment value within the target adjustment value range, that is, the target adjustment Ejection corresponding to the adjustment value close to the center value of the target adjustment value range, avoiding the situation that the adjustment work ends when the emission amount corresponds to the adjustment value close to the upper limit value or the lower limit value of the value range. It can be suitably adjusted until the amount is specified.

In the adjusting device according to claim 7, the amount of light emitted from each light source is adjustable so that any color and any brightness can be recognized, and the amount of light emitted from each light source is adjusted. The determination process is performed to determine whether the emission amount corresponds to the adjustment value within the target adjustment value range specified based on the information, and the emission amount of light from each light source is the adjustment value within the target adjustment value range. When the emission amount corresponding to is not obtained, the emission amount adjustment process of changing the emission amount of the light from each light source by a predetermined change amount is executed, and then the determination process is executed again.

Therefore, according to the adjusting device of the seventh aspect, the operator defines the target adjustment value range or performs the adjustment work so that the emission amount corresponds to the adjustment value within the specified target adjustment value range. Automatically, a series of processes from the process of defining the target adjustment value range to the adjustment process so that the light emission amount from the light source becomes the emission amount corresponding to the adjustment value within the target adjustment value range Therefore, even a person unfamiliar with this type of device (work) can reliably and easily adjust the amount of light emitted from each light source so that any color and any brightness can be recognized. Can be made.

In the adjustment device according to claim 8, in the determination process executed after the emission amount adjustment process, it is determined that the emission amount of light from each light source is changed to an emission amount corresponding to an adjustment value outside the target adjustment value range. The change amount that changes the emission amount of light from each light source during the next emission amount adjustment process, and the change amount that changes the emission amount of light from each light source during the immediately previous emission amount adjustment process. Less than the predetermined amount.

Therefore, according to the adjusting device of the eighth aspect, when the emission amount is changed by the specified change amount, the emission amount of the light from the light source changes more than expected. Even if there is, the amount of change in the output amount in the output amount adjustment process from the second time onward gradually decreases. It is possible to adjust the emission amount corresponding to.

It is a block diagram of the light quantity measuring device 1. 9 is a flowchart of an adjustment work assistance process 20. FIG. 7 is an explanatory diagram illustrating an example of a display state of an adjustment state notification display 40. FIG. 11 is an explanatory diagram for explaining another example of the display state of the adjustment state notification display 40.

Embodiments of an adjustment information generation device, an adjustment work auxiliary device, and an adjustment device will be described below with reference to the accompanying drawings.

The light quantity measuring device 1 shown in FIG. 1 is an example of an “adjustment work assisting device” and an “adjusting device” configured by including an “adjustment information generating device”, and is a red laser (an example of “red light source”). Of the red laser light Lr from the laser, the amount of green laser light Lg from the green laser (an example of “green light source”), and the amount of blue laser light Lb from the blue laser (an example of “blue light source”) By changing the laser light Lr, the green laser light Lg, and the combined light Lrgb of the blue laser light Lb, thereby arbitrarily changing the color and brightness to be recognized by the viewer (an example of the “light output device”: An example of white balance adjustment work with "not shown" as the "adjustment target" ("adjusting the amount of light emitted from each light source so that any color and any brightness can be recognized") ), and is configured to be able to execute automatic adjustment processing.

Specifically, the light quantity measuring device 1 is configured to include light receiving units 2R, 2G, 2B, signal conversion units 3R, 3G, 3B, an operation unit 4, a display unit 5, a processing unit 6, and a storage unit 7. .. The light quantity measuring device 1 of the present example is actually provided with a light diffusing section, an aperture, etc. for regulating the incident direction and the incident quantity of light with respect to each of the light receiving sections 2R, 2G, 2B. Since the configuration and the function are known, illustration and detailed description thereof are omitted.

The light receiving portions 2R, 2G, 2B (hereinafter, also referred to as "light receiving portion 2" when not distinguished) are configured to include light receiving sensors 10a, 10b and an optical filter 11, respectively. Further, the light receiving sensor 10a is configured to include an optical filter 12a and a photoelectric conversion unit 13a, and the light receiving sensor 10b is configured to include an optical filter 12b and a photoelectric conversion unit 13b. In this case, in the light quantity measuring device 1 of the present example, the optical filter 11 of the light receiving unit 2R has a wavelength within the “measurement target wavelength range (red light wavelength region)” defined in advance with the centroid wavelength of the red laser light Lr as the center. Of light having a wavelength shorter than the “measurement target wavelength range” or light having a wavelength longer than the “measurement target wavelength range” is regulated while allowing the above light to be incident on the light reception sensors 10a and 10b. Is configured to.

In addition, in the light quantity measuring device 1 of the present example, the optical filter 11 of the light receiving unit 2G has a wavelength within a “measurement target wavelength range (green light wavelength region)” that is defined in advance with the centroid wavelength of the green laser light Lg as the center. While allowing the light to be incident on the light receiving sensors 10a and 10b, the light having a wavelength shorter than the "measurement target wavelength range" and the light having a wavelength longer than the "measurement target wavelength range" are regulated from entering the light receiving sensors 10a and 10b. Is configured. Further, in the light quantity measuring device 1 of the present example, the optical filter 11 of the light receiving unit 2B has a wavelength within a “measurement target wavelength range (blue light wavelength region)” that is defined in advance with the centroid wavelength of the blue laser light Lb as the center. While allowing the light to be incident on the light receiving sensors 10a and 10b, the light having a wavelength shorter than the "measurement target wavelength range" and the light having a wavelength longer than the "measurement target wavelength range" are regulated from entering the light receiving sensors 10a and 10b. Is configured.

Further, in the light quantity measuring device 1 of this example, the ratio of the spectral sensitivity of the light receiving sensor 10a and the spectral sensitivity of the light receiving sensor 10b is each wavelength within the above-mentioned "measurement target wavelength range" defined for each light receiving unit 2. The optical characteristics (light transmission characteristics) of both optical filters 12a and 12b are defined so as to be different for each light. Specifically, as an example, the optical filter 12a disposed on the light receiving surface side of the photoelectric conversion unit 13a performs photoelectric conversion so that the light having a longer spectral sensitivity characteristic of the light receiving sensor 10a has higher sensitivity. Optical characteristics are added to limit (regulate) the amount of light incident on the portion 13a. Further, the optical filter 12b disposed on the light receiving surface side of the photoelectric conversion unit 13b makes light incident on the photoelectric conversion unit 13b such that light having a shorter wavelength has a spectral sensitivity characteristic of the light receiving sensor 10b. Optical properties are added to limit (regulate) the amount.

The photoelectric conversion unit 13a is arranged so as to be able to receive the light transmitted through the optical filters 11 and 12a, and outputs a detection signal Sa (current signal corresponding to the amount of received light) according to the amount of received light. The photoelectric conversion unit 13b is arranged so as to be able to receive the light transmitted through the optical filters 11 and 12b, and outputs a detection signal Sb (current signal corresponding to the amount of received light) corresponding to the amount of received light. In the light quantity measuring device 1 of the present example, as an example, the photoelectric conversion units 13a and 13b (“photoelectric conversion units” having the same sensitivity for light of each wavelength) formed of the same product are used, and both light receiving sensors are used. 10a and 10b are respectively configured.

The signal conversion units 3R, 3G, 3B (hereinafter, also referred to as “signal conversion unit 3” when no distinction is made) I/O the detection signals Sa, Sb output from the photoelectric conversion units 13a, 13b (light receiving sensors 10a, 10b). An I/V conversion unit that performs V conversion and an A/D conversion unit that performs A/D conversion processing on the detection signal (voltage signal) output from the I/V conversion unit to generate detection signal data Da and Db, respectively. I have it.

The operation unit 4 includes various operation switches for instructing start/stop of setting of various processing conditions to be described later and processing, and outputs an operation signal according to switch operation to the processing unit 6. Under the control of the processing unit 6, the display unit 5 displays various display screens such as an adjustment work auxiliary screen and an adjustment result notification screen (both not shown) described later.

The processing unit 6 controls the light quantity measuring device 1 as a whole. This processing unit 6 constitutes a “processing unit” in cooperation with each light receiving unit 2 and each signal conversion unit 3, and executes the adjustment work auxiliary processing 20 shown in FIG. The adjustment value range data D0 corresponding to "information" is generated, and the adjustment state of the laser projector as the "adjustment target" is determined and notified to the operator. Further, in the light quantity measuring device 1 of the present example, as an example, the processing unit 6 converts the generated adjustment value range data D0 into a state in which it is connected to the laser projector via a signal cable as shown by a broken line in FIG. Accordingly, the “adjustment process” for automatically adjusting the white balance of the laser projector can be executed.

The specific contents of the adjustment work assistance process 20 and the “adjustment process” will be described later in detail. The storage unit 7 stores the operation program of the processing unit 6, the adjustment value range data D0 generated by the processing unit 6, and the like. In this case, the light quantity measuring device 1 of the present example is not only used as the “adjustment information generation device”, the “adjustment work auxiliary device” and the “adjustment device”, but also the “light amount (“luminance”” of various measured light beams. It is configured so that it can be used as a “measuring device” that measures “photometric amount” such as “illuminance”) and “chromaticity” and displays the measured value. In order to facilitate understanding of the “adjustment work assisting device” and the “adjusting device”, description of the usage as a normal “measuring device” is omitted.

Next, an example of white balance adjustment work using the light quantity measuring device 1 will be described.

First, as an example, the light amount measuring device 1 is installed at the position of the screen on which various images are projected by the laser projector to be adjusted. At this time, the red laser light Lr, the green laser light Lg, and the blue laser light Lb (hereinafter, also referred to as “laser light L” when they are not distinguished) from the laser projector (each laser) are applied to each light receiving unit 2. The light amount measuring device 1 is installed so that the light receiving surface of each light receiving portion 2 faces the laser projector so that the light is irradiated with the light.

Then, turn on the power of the laser projector and start projecting an image for white balance adjustment (for example, a uniform white image over the entire projection area: this image is also referred to as “adjustment image” below). Let The "chromaticity value (target chromaticity value)" and the "photometric amount (target photometric value)" to be measured at the position of the screen with respect to the combined light Lrgb emitted from the laser projector when the adjustment image is projected on the screen. "Amount)" is known, and "Chromaticity value tolerance" for "Chromaticity value (target chromaticity value)" and "Measurement tolerance" for "Photometric amount (target photometric amount)" are It shall be specified in advance.

At this time, for example, in the light receiving section 2R, the optical filter 11 restricts the incidence of the green laser light Lg and the blue laser light Lb and allows the incidence of the red laser light Lr. Therefore, in the light receiving unit 2R, the detection signal Sa of the current value according to the amount of the red laser light Lr passing through the optical filter 12a, which is received by the photoelectric conversion unit 13a, according to the center-of-gravity wavelength of the red laser light Lr from the red laser. Is output from the photoelectric conversion unit 13a, and a detection signal Sb having a current value corresponding to the amount of light received by the photoelectric conversion unit 13b of the red laser light Lr that passes through the optical filter 12b is output from the photoelectric conversion unit 13b.

In the light receiving section 2G, the optical filter 11 regulates the incidence of the red laser light Lr and the blue laser light Lb and allows the incidence of the green laser light Lg. Therefore, in the light receiving unit 2G, the detection signal Sa of the current value according to the amount of the green laser light Lg passing through the optical filter 12a, which is received by the photoelectric conversion unit 13a, according to the center-of-gravity wavelength of the green laser light Lg from the green laser. Is output from the photoelectric conversion unit 13a, and a detection signal Sb having a current value corresponding to the amount of received green laser light Lg that passes through the optical filter 12b by the photoelectric conversion unit 13b is output from the photoelectric conversion unit 13b.

Further, in the light receiving unit 2B, the optical filter 11 regulates the incidence of the red laser light Lr and the green laser light Lg, and allows the incidence of the blue laser light Lb. Therefore, in the light receiving unit 2B, the detection signal Sa of the current value according to the amount of light received by the photoelectric conversion unit 13a of the blue laser light Lb that passes through the optical filter 12a according to the center-of-gravity wavelength of the blue laser light Lb from the blue laser. Is output from the photoelectric conversion unit 13a, and a detection signal Sb of a current value corresponding to the amount of light received by the photoelectric conversion unit 13b of the blue laser light Lb that passes through the optical filter 12b is output from the photoelectric conversion unit 13b.

In this state, when the start of the process is instructed by the operation of the operation unit 4, the processing unit 6 starts the adjustment work auxiliary process 20 shown in FIG. In the adjustment work assisting process 20, the processing unit 6 first starts specifying the tristimulus values: X, Y, Z of the laser light L output from each laser (light source) (an example of “measurement process”). : Step 21).

Specifically, the processing unit 6 first enters the light receiving unit 2R based on the detection signal data Da and Db output from the light receiving sensors 10a and 10b of the light receiving unit 2R and converted by the signal conversion unit 3R. The “centroid wavelength: λgr” of the red laser light Lr is specified. Similarly, based on the detection signal data Da and Db output from the light receiving sensors 10a and 10b of the light receiving unit 2G and converted by the signal converting unit 3G, the "centroid wavelength of the green laser beam Lg incident on the light receiving unit 2G is determined. : [Lambda]gg" and based on the detection signal data Da, Db output from the light receiving sensors 10a, 10b of the light receiving unit 2B and converted by the signal converting unit 3B, the blue laser light Lb incident on the light receiving unit 2B. “Center of gravity wavelength: λgb” is specified.

At this time, the processing unit 6 sets the ratio of the value of the detection signal data Da and the value of the detection signal data Db of each light receiving unit 2 to the predetermined one (for example, the detection signal data Da The ratio of the value of the detection signal data Db to the value: the value of the detection signal data Db/the value of the detection signal data Da) is calculated, and based on the calculated ratio, the laser incident on the light receiving sensors 10a and 10b of each light receiving unit 2 The centroid wavelength λg of the light L is specified (calculated). Thus, the “centroid wavelength: λgr” of the red laser light Lr output from the red laser, the “centroid wavelength: λgg” of the green laser light Lg output from the green laser, and the blue laser light output from the blue laser. The “centroid wavelength: λgb” of Lb is specified.

Next, the processing unit 6 specifies the “laser output value (optical power): P” of each laser light L. At this time, the processing unit 6 outputs one of the detection signal data Da and Db (as an example, the detection signal output from one of the light receiving sensors 10a and 10b having a high sensitivity at the specified “centroid wavelength: λg”). The “laser output value: P” is calculated based on the detected signal data D) corresponding to S and the specified “centroid wavelength: λg”. Thus, the “laser output value: Pr” of the red laser light Lr output from the red laser, the “laser output value: Pg” of the green laser light Lg output from the green laser, and the blue output from the blue laser. The “laser output value: Pb” of the laser light Lb is specified.

Subsequently, the processing unit 6 identifies the specified “centroid wavelength: λgr, λgg, λgb”, “laser output value: Pr, Pg, Pb” and “color matching function: x(λ), y(λ), z( λ)”, as shown in the following [Equation 1], “tristimulus value: Xr, Yr, Zr” of the red laser light Lr from the red laser and “of the green laser light Lg from the green laser”. The “tristimulus value: Xg, Yg, Zg” and the “tristimulus value: Xb, Yb, Zb” of the blue laser light Lb from the blue laser are calculated.

The “tristimulus values: Xrgb, Yrgb, Zrgb” of the laser beams Lr, Lg, Lb (combined light Lrgb) output from the laser projector are as shown in [Equation 2].

Next, the processing unit 6 causes the “laser output value (target laser output value: P′r, P′g, P′” that becomes “target chromaticity value: x′, y′” and “target photometric amount: Y′”. b: example of "target adjustment value") (example of "adjustment value specifying process": step 22). Specifically, the processing unit 6 specifies the designated “target chromaticity value: x′, y′” (an example of “target chromaticity value corresponding to an arbitrary color”), and “target photometric amount: Y”. The laser light Lr to be output from the laser projector (red laser, green laser, and blue laser) in a state in which the adjustment image is displayed based on “” (an example of “target photometric amount corresponding to arbitrary brightness”). , Lg, Lb (combined light Lrgb), “target tristimulus values: X′rgb, Y′rgb, Z′rgb” are calculated as shown in [Equation 3].

In this case, assuming that "correction coefficient for red laser light Lr: k", "correction coefficient for green laser light Lg: 1" and "correction coefficient for blue laser light Lb: m", the above measured values ( Tristimulus values: Xrgb, Yrgb, Zrgb: an example of "each tristimulus value measured by the measurement process") and the calculated "target tristimulus values: X'rgb, Y'rgb, Z'rgb" As shown in [Equation 4].

Therefore, as an example, the above-mentioned “correction coefficient: k, l, m” is calculated as shown in [Equation 5].

Next, based on the above measured values and calculation results, “target laser output values P′r, P′g, P′b” of the light to be output from the adjusted laser projector are shown in [Equation 6]. To calculate.

Next, the processing unit 6 sets an “adjustment completion determination range (an example of “a target adjustment value range capable of specifying a target tristimulus value range”)” based on the measurement result of step 21 and the calculation result of step 22. It is specified (an example of "adjustment range specification process"), and the adjustment value range data D0 is generated based on the specification result (step 23).

Specifically, the processing unit 6 first designates the designated "target chromaticity value: x', y'" and its "allowable error: Δx', Δy'". “Any chromaticity within the target chromaticity value range (as an example, “lower limit: xmin, ymin”)” based on the target photometric amount: Y′” and its “tolerance: ΔY′”, and The "correction coefficient: k', l', m'" corresponding to the "arbitrary light amount within the target photometric amount range (for example, "lower limit value: Ymin") is calculated. The calculation method of “correction coefficient: k′, l′, m′” is the same as the above-described calculation method of “correction coefficient k, l, m”, and thus the description thereof is omitted.

Next, as shown in [Equation 7], from "tolerance: Δx', Δy', ΔY'", (x'-Δx', y'-Δy', Y'-ΔY' ) "Permissible error of correction coefficient: Δk, Δl, Δm" is calculated by Taylor expansion around.

It should be noted that the above-described calculation for obtaining the “correction coefficient allowable error: Δk, Δl, Δm” is not limited to the one-dimensional Taylor expansion, and the order of the differential term is increased as necessary (“ n-dimensional (where n is a natural number of 2 or more) Taylor expansion”).

Subsequently, the “adjustment completion determination range” for each laser beam L is specified according to the calculated “correction coefficient tolerance: Δk, Δl, Δm”.

At this time, the "adjustment completion determination range (one of "target adjustment value range capable of specifying target tristimulus value range")" of "laser output value: Pr" of red laser light Lr output from the red laser is , When the calculated “Δk” is a negative value,
“(K′+Δk)Pr≦Pr≦k′Pr”
And when the calculated “Δk” is a positive value,
“K′Pr≦Pr≦(k′+Δk)Pr”
Becomes

Further, the “adjustment completion determination range (other one of “target adjustment value range capable of specifying target tristimulus value range”) of “laser output value: Pg” of the green laser light Lg output from the green laser is , When the calculated “Δl” is a negative value,
“(L′+Δl)Pg≦Pg≦l′Pg”
And when the calculated “Δl” is a positive value,
“L′Pg≦Pg≦(l′+Δl)Pg”
Becomes

Further, the “adjustment completion determination range of “the laser output value: Pb” of the blue laser light Lb output from the blue laser (another one of the “target adjustment value range capable of specifying the target tristimulus value range”)” Is a negative value for the calculated “Δm”,
“(M′+Δm)Pb≦Pb≦m′Pb”
And when the calculated “Δm” is a positive value,
“M′Pb≦Pb≦(m′+Δm)Pb”
Becomes

Next, the processing unit 6 generates the adjustment value range data D0 based on the specified “adjustment completion determination range” and stores the adjustment value range data D0 in the storage unit 7. With the above, the generation of the “adjustment information” is completed, and the preparation for assisting the adjustment work is completed.

On the other hand, when the generation of the adjustment value range data D0 is completed, the processing unit 6 together with the values of “target laser output values: P′r, P′g, P′b” calculated in step 22 above. As an example, the message “Please start the adjustment work” is displayed on the display unit 5. In response to this, the worker starts the work of adjusting the emission amount of each laser beam L from the laser projector (red laser, green laser, and blue laser).

Further, in the processing unit 6, "laser output value: Pr, Pg, Pb (amount of laser light L emitted from each red laser, green laser, and blue laser)" is specified based on the adjustment value range data D0. It is determined whether the value is within the “target adjustment value range” (an example of the “first determination process”), and the “chromaticity value: x, y” of the combined light Lrgb of each laser light L is the “target color”. Whether the value is within the range of “tolerance: Δx′, Δy′” with respect to “degree value: x′, y′”, and “photometric amount: Y” of the combined light Lrgb of each laser light L. Is executed within the range of “allowable error: ΔY′” with respect to “target photometric amount: Y′” (an example of “second judgment processing”), and the judgment result is sent to the operator. Inform them.

Specifically, the processing unit 6 first, based on the detection signal data Da, Db output from each signal conversion unit 3, "laser output value: Pr, Pg, Pb", "chromaticity value: x, "y" and "photometric amount: Y" are specified (step 24), and the specified values are displayed on the display unit 5.

Next, the processing unit 6 determines that the “laser output value: Pr” is the “adjustment completion determination range (“(k′+Δk)Pr≦Pr≦k′Pr””, which is specified based on the adjustment value range data D0. Whether or not the value falls within “k′Pr≦Pr≦(k′+Δk)Pr”)”, the “laser output value: Pg” is specified based on the adjustment value range data D0. Whether the value is within the "adjustment completion determination range ("(l'+Δl)Pg ≤ Pg ≤ l'Pg" or "l'Pg ≤ Pg ≤ (l'+Δl)Pg")" Whether or not and "laser output value: Pb" are specified based on the adjustment value range data D0. "Adjustment completion determination range ("(m'+Δm)Pb≤Pb≤m'Pb" and "m' It is determined whether each of the values is in the range of “Pb≦Pb≦(any of m′+ΔmPb”)” (step 25).

In this case, in the light quantity measuring device 1 of the present example, when it is determined that the “laser output value: Pr, Pg, Pb” is out of the “adjustment completion determination range”, the value is a white background. Will be displayed numerically on top of. Therefore, the operator displays the "target laser output value: P'r, P'g, P'b" that has already been displayed and the "laser output value: Pr, Pg" displayed by being specified in step 24. , Pb”, the emission amount of the red laser light Lr from the red laser, the emission amount of the green laser light Lg from the green laser, and the emission amount of the blue laser light Lb from the blue laser are respectively adjusted. ..

Specifically, when the “laser output value: Pr” is smaller than the “target laser output value: P′r”, adjustment work is performed to increase the emission amount of the red laser light Lr from the red laser, and the “laser output When the value: Pr” is larger than the “target laser output value: P′r”, the adjustment work for reducing the emission amount of the red laser light Lr is performed. When the “laser output value: Pg” is smaller than the “target laser output value: P′g”, the adjustment work for increasing the emission amount of the green laser light Lg from the green laser is performed, and the “laser output value: Pg Is larger than the “target laser output value: P′g”, the adjustment work for reducing the emission amount of the green laser light Lg is performed. Further, when the “laser output value: Pb” is smaller than the “target laser output value: P′b”, adjustment work is performed to increase the emission amount of the blue laser light Lb from the blue laser, and the “laser output value: Pb Is larger than the “target laser output value: P′b”, the adjustment work for reducing the emission amount of the blue laser light Lb is performed.

On the other hand, when it is determined in step 25 that the “laser output value: Pr, Pg, Pb” is not within the “adjustment completion determination range”, the processing unit 6 determines that the combined light beam identified in step 24 has been obtained. Whether or not the “chromaticity value: x, y” of Lrgb is within a range of “allowable error: Δx′, Δy′” with respect to “target chromaticity value: x′, y′”, and It is determined whether or not the "photometric amount: Y" of the combined light Lrgb is within a range of "allowable error: ΔY'" with respect to the "target photometric amount: Y'" (step 26). At this time, since the adjustment work has just started, the processing unit 6 causes the “color difference outside the range of “allowable error: Δx′, Δy′” with respect to the “target chromaticity value: x′, y′”. It is determined that the "photometric amount: Y" outside the range of "allowable error: ΔY'" for the "degree value: x, y" and the "target photometric amount: Y'" is specified. After determining that the adjustment has not been completed (step 27), the process returns to step 24.

Further, in the light quantity measuring device 1 of the present example, one of the “laser output values: Pr, Pg, Pb” becomes a value within the “adjustment completion determination range” due to the adjustment work by the operator (“the light from each light source is The emission amount corresponds to the chromaticity value within the allowable chromaticity value error range with respect to the target chromaticity value, and also corresponds to the photometric amount within the allowable photometric amount error error with respect to the target photometric amount. When it is determined in step 25 that one of the “laser output values: Pr, Pg, Pb” is within the “adjustment completion determination range”, the background color of that value is white. It is changed to a background color other than.

Specifically, for example, when the emission amount of the red laser light Lr is adjusted and the “laser output value: Pr” becomes a value within the “adjustment completion determination range” (step 25), the background color is white. Is changed from red to red, the “laser output value: Pr” is displayed numerically (an example of “first notification process for notifying that the value is within the adjustment completion determination range”: step 28). When the emission amount of the green laser light Lg is adjusted and the "laser output value: Pg" becomes a value within the "adjustment completion determination range" (step 25), the background color is changed from white to green. The "laser output value: Pg" is displayed as a numerical value in this state (another example of "notification that the value is within the adjustment completion determination range": step 28). Further, when the emission amount of the blue laser light Lb is adjusted and the “laser output value: Pb” becomes a value within the “adjustment completion determination range” (step 25), the background color is changed from white to blue. The "laser output value: Pb" is displayed numerically in this state (still another example of "notification that the value is within the adjustment completion determination range": step 28).

Therefore, the worker responds to the magnitude relation between the “target laser output value: P′r, P′g, P′b” and the “laser output value: Pr, Pg, Pb” displayed on the display unit 5. It suffices to determine whether to increase or decrease the emission amount of the corresponding laser light L by using the red laser light Lr, even if it is not known how much the emission amount of each laser light L should be changed. When adjusting, the value of the “laser output value: Pr” displayed on the display unit 5 is changed until the background color becomes red, and when adjusting the green laser light Lg, the value displayed on the display unit 5 is changed. The value is changed until the background color of "laser output value: Pg" becomes green, and the background color of "laser output value: Pb" displayed on the display unit 5 becomes blue when adjusting the blue laser light Lb. It is possible to adjust the "laser output value: Pr, Pg, Pb" to a value within the "adjustment completion determination range" by simply changing the value.

When it is determined in step 25 that one of the “laser output values: Pr, Pg, Pb” is within the “adjustment completion determination range”, the “laser output value: Instead of the above configuration/method of notifying that "the value has become within the adjustment completion determination range" by changing the background color of "Pr, Pg, Pb" to a background color other than white (or such a configuration) -In addition to the method), as an example, the operation of displaying the adjustment state notification display 40 shown in FIG. 3 on the display unit 5 and adjusting the emission amount of each laser beam L while referring to the adjustment state notification display 40. It is possible to adopt a configuration/method for executing.

The adjustment state notification display 40 includes bars 41r and 42r and a cursor 43r for assisting the operation of changing the "laser output value: Pr" of the red laser light Lr, and the "laser output value: Pg" of the green laser light Lg. 41g and 42g and a cursor 43g for assisting the changing operation of the laser beam, and bars 41b and 42b and a cursor 43b for assisting the changing operation of the "laser output value: Pb" of the blue laser light Lb.

In this case, the bars 41r, 41g, 41b (hereinafter, also referred to as "bar 41" when no distinction is made) have the "adjustable range of the "laser output values Pr, Pg, Pb" of the red laser, the green laser and the blue laser ( This is a display showing the range for which adjustment is allowed for each laser as the specifications of the laser projector). As an example, the left end of the display is made to correspond to the minimum output value within the “adjustable range”. And, the right end portion thereof is made to correspond to the maximum value of the output values within the “adjustable range”.

Further, the bars 42r, 42g, 42b (hereinafter, also referred to as "bar 42" when no distinction is made) have the "adjustment completion determination range" of the "laser output value: Pr, Pg, Pb" specified in the above step 23. As an example, it is displayed so as to be displayed on the bar 41 so that the relative position and size of the “adjustment completion determination range” with respect to the “adjustable range” are shown. The left end of the bar 42 corresponds to the minimum value of the output values within the “adjustment completion determination range”, and the right end of the bar 42 corresponds to the maximum value of the output values within the “adjustment completion determination range”. Along with the correspondence, as an example, a vertical line indicating the center value of the “adjustment completion determination range” is displayed at the center in the left-right direction.

Further, the cursors 43r, 43g, 43b (hereinafter, also referred to as "cursor 43" when no distinction is made) indicate "laser output values: Pr, Pg, Pb" (at step 24) for the "adjustable range" and the "adjustment completion determination range". Is a display indicating the relative position of the “specified value)”, and is displayed side by side on the above-mentioned bars 41 and 42 as an example.

In this case, in the example of FIG. 3, the “laser output value: Pr” of the red laser light Lr specified in step 24 is a value smaller than the “adjustment completion determination range” specified in step 23, and the step 24 The “laser output value: Pg” of the green laser light Lg specified in step 23 is a value within the “adjustment completion determination range” specified in step 23, and the “laser output of the blue laser light Lb specified in step 24” It is shown that the value: Pb” is larger than the “adjustment completion determination range” specified in step 23.

Therefore, the operator who sees the adjustment state notification display 40 recognizes that the "laser output value: Pr" is small based on the position of the cursor 43r with respect to the bar 42r, and the red laser light is emitted until the cursor 43r overlaps the bar 42r. The adjustment work for increasing the emission amount of Lr is performed, and it is recognized that the “laser output value: Pb” is large based on the position of the cursor 43b with respect to the bar 42b, and emission of the red laser light Lr is performed until the cursor 43b overlaps with the bar 42b. Make adjustments to reduce the amount.

In this case, for example, if the “laser output value: Pr” becomes the emission amount within the “adjustment completion determination range” by the above adjustment work and the cursor 43r is displayed so as to overlap the bar 42r, the red laser light is emitted. The adjustment work of Lr is completed. However, in the state where the bar 42r indicating the “adjustment completion determination range” is displayed, many workers perform the adjustment work so that the cursor 43r is located at the center of the bar 42r, as shown in FIG. To do. As a result, all of the “laser output values: Pr, Pg, Pb” are adjusted to the center value or the center of each “adjustment completion determination range” by performing the adjustment work while referring to the adjustment state notification display 40. It is adjusted to a value close to the value. In the configuration/method of displaying the adjustment state notification display 40, the process of displaying the cursor 43 at the position overlapping the bar 42 is “first notification that the value is within the adjustment completion determination range”. It corresponds to "notification process".

On the other hand, after determining in step 25 that "laser output value: Pr, Pg, Pb" is not within the "adjustment completion determination range", or "laser output value: Pr, Pg, Pb" It is discriminated that any one of the values has become a value within the “adjustment completion judgment range”, and at step 28, one of the “laser output values: Pr, Pg, Pb” becomes a value within the “adjustment completion judgment range”. After notifying that the "chromaticity value: x, y" of the combined light Lrgb specified in step 24 is "allowable error: Δx" with respect to "target chromaticity value: x', y'". Whether the value is within the range of “, Δy”, and whether the “photometric amount: Y” of the combined light Lrgb is within the “allowable error: ΔY′” with respect to the “target photometric amount: Y'”. It is determined whether each of the values is (step 26).

Further, the “chromaticity value: x, y” is not within the range of “allowable error: Δx′, Δy′” with respect to the “target chromaticity value: x′, y′”, and/or When the “photometric amount: Y” of the combined light Lrgb is not within the range of the “allowable error: ΔY′” with respect to the “target photometric amount: Y′”, the processing unit 6 determines that Is completed (whether all of the "laser output values: Pr, Pg, Pb" are within the "adjustment completion judgment range") (step 27). At this time, if the adjustment for any of the lasers is not completed (any one of the “laser output values: Pr, Pg, Pb” is not within the “adjustment completion determination range”), the process is performed. The section 6 returns to step 24.

In this case, one of the “laser output values: Pr, Pg, Pb” is not within the “adjustment completion determination range”, that is, the adjustment of any of the lasers is not completed. However, for example, when the “laser output value: P” that is not within the “adjustment completion determination range” is a value close to the “adjustment completion determination range”, the “chromaticity value: x of the combined light Lrgb is x. , Y” is a value within the range of “tolerance: Δx′, Δy′” with respect to “target chromaticity value: x′, y′”, and “photometric amount: Y” is “target photometric amount: Y”. The value may fall within the range of “tolerance: ΔY” for “” (white balance adjustment is completed).

Therefore, even if one of the “laser output values: Pr, Pg, Pb” is not within the “adjustment completion determination range”, the processing unit 6 determines in step 26 that the combined light beam is to be emitted. "Chromaticity value: x, y" of Lrgb is within the range of "allowable error: Δx', Δy'" with respect to "target chromaticity value: x', y'", and "photometric amount of combined light Lrgb" :Y” is within the range of “tolerance: ΔY′” with respect to “target photometric amount: Y′”, as an example, the “chromaticity value: By displaying the character string “PASS” on the display unit 5 by superimposing the values of “x, y” and “photometric amount: Y”, the operator is informed that the adjustment work for each laser light L is completed. After making the notification (an example of the "second notification process": step 29), the adjustment work auxiliary process 20 ends.

On the other hand, in the light quantity measuring device 1 of the present example, even though it is determined in step 25 that all of the “laser output values: Pr, Pg, Pb” are within the “adjustment completion determination range”, 26, when it is determined that the “chromaticity value: x, y” of the combined light Lrgb is not within the “allowable error: Δx′, Δy′” with respect to the “target chromaticity value: x′, y′”. (An example of a state in which the “first condition” is satisfied), and/or all of the “laser output values: Pr, Pg, Pb” in step 25 are within the “adjustment completion determination range”. Despite the determination, when it is determined in step 26 that the "photometric amount: Y" of the combined light Lrgb is not within the "allowable error: ΔY'" with respect to the "target photometric amount: Y'" (" 2) is satisfied, the processing unit 6 determines in step 27 that the adjustments for all the lasers have been completed, and then the “adjustment value range data D0 currently used at that time” is adjusted. A "adjustment completion determination range" narrower than the "completion determination range" is newly defined to allow the operator to readjust the emission amount of each laser beam L.

Specifically, when at least one of the “first condition” and the “second condition” described above is satisfied and it is determined in step 27 that the adjustment for all the lasers has been completed, the processing unit 6 immediately The "adjustment completion determination range" narrower than the "adjustment completion determination range" used in the executed step 25 is specified to generate the adjustment value range data D0 (step 30). Specifically, as an example, the processing unit 6 sets the lower limit value of the “adjustment completion determination range” used in step 25, that is, the “adjustment completion determination range” specified in step 23 described above to 5% to 10%. By changing to a large value within the range and changing the upper limit value to a small value within the range of 5% to 10%, a new "adjustment completion determination range" is narrowed from 10% to 20% (15% as an example). Is specified.

After that, the processing unit 6 re-executes each processing of step 24 and subsequent steps. As a result, the adjustment work is performed so that the value is within the newly specified sufficiently narrow “adjustment completion determination range”. As a result, in step 25, all of the “laser output values: Pr, Pg, Pb” are “adjusted”. It is determined that the value is within the “completion determination range”, and in step 26, the “chromaticity value: x, y” of the combined light Lrgb is “allowable error: “target chromaticity value: x′, y′”. It is determined that the values are within the range of “Δx′, Δy′” and that the “photometric amount: Y” is within the range of “allowable error: ΔY′” with respect to the “target photometric amount: Y′”. Will be in a state where At this time, the processing unit 6 informs the operator that the adjustment work for each laser beam L is completed by displaying the character string “PASS” on the display unit 5 as an example ( In step 29), the adjustment work assisting process 20 ends.

As described above, in the light quantity measuring device 1, a “measurement process” for measuring “tristimulus values: X, Y, Z” for each laser light L output from each laser (light source) and (step 21), Laser light L to be output from each laser based on "target chromaticity value: x', y'", "target photometric amount: Y'", and each measured "tristimulus value: X, Y, Z" "Target tristimulus values: X'rgb, Y'rgb, Z'rgb" corresponding to "target chromaticity value: x', y'" and "target photometric amount: Y'" can be specified for each "Adjustment value specifying process" for calculating target adjustment values (in this example, "target laser output values P'r, P'g, P'b")" and (step 22), "target chromaticity value: x" ', y'", "Target photometric amount: Y'", "Allowable error: Δx', Δy'", "Allowable error: ΔY'" and "Target laser output value P'r, P'g," Based on "P'b", for each laser beam L to be output from each laser, "allowable error: Δx', Δy'" for "target chromaticity value: x', y'" It is possible to specify the "target tristimulus value range" that is "photometric amount: Y" within the range of "allowable error: ΔY'" for "chromaticity value: x, y" and "target photometric amount: Y'". "Target adjustment value range (in this example, target range of "laser output value: Pr", target range of "laser output value: Pg", and target range of "laser output value: Pb")" is calculated. The "adjustment range specifying process" is executed (step 23), and the adjustment value range data D0 corresponding to the "adjustment information" is generated based on each "target adjustment value range" calculated by the "adjustment range specifying process". ..

Therefore, according to this light quantity measuring device 1, at least each laser light L is emitted based on the “target adjustment value range” for each of the three laser lights Lr, Lg, Lb specified based on the adjustment value range data D0. When the amount does not correspond to the “adjustment value” within each “target adjustment value range”, “target chromaticity value: x′, y′” and “target photometric amount: Y′” Since it can be determined that is not in the state of being measured (adjustment is not completed), for example, “chromaticity value: x, y” and “photometric amount: Y” measured at that time are displayed. , "Target chromaticity value: x', y'" and "Target photometric amount: Y'", it is necessary to estimate whether or not to adjust the emission amount of the three laser beams Lr, Lg, Lb. Different from the conventional adjustment method, which one of the laser beams Lr, Lg, Lb should be changed, and which one of the laser beams Lr, Lg, Lb should be increased. It is possible to reliably and easily recognize which of the emission amounts should be reduced. As a result, even an operator unfamiliar with this kind of adjustment work can easily perform the adjustment work in a short time.

Further, according to the light amount measuring device 1, the emission amount of the laser light L from each laser corresponds to the “adjustment value” within the “target adjustment value range” specified based on the adjustment value range data D0. By executing the “first determination process” for determining whether the amount is reached (steps 24, 25) and executing the “first notification process” that notifies the result of the “first determination process” in a identifiable manner. (Step 28) Since it is possible to easily recognize whether or not the emission amount of the laser light L from the laser during the adjustment work has reached the emission amount corresponding to the “adjustment value” within the “target adjustment value range”. Even an operator unfamiliar with this kind of adjustment work can perform the adjustment work more easily.

Further, according to the light quantity measuring device 1, the combined light of the laser light L from each laser is in the range of “allowable error: Δx′, Δy′” with respect to “target chromaticity value: x′, y′”. "Chromaticity value: x, y" in the above, and when it is determined that the "photometric amount: Y" within the "allowable error: ΔY'" for the "target photometric amount: Y'" (Step 26), by executing the “second notification process” that notifies that the adjustment of the emission amount of the laser light L from each laser is completed (step 29), for example, for each laser light L Even if the emission amount of any one of the laser beams L is not within the “target adjustment value range” during the adjustment work of, the “chromaticity value: x, y” of the combined light Lrgb is the “target color”. A value within the range of "tolerance: Δx', Δy'" for "degree value: x', y'", and "photometric amount: Y" is "tolerance error: Δ" for "target photometric amount: Y'". When the value becomes within the range of “Y′”, that is, when the further adjustment work becomes unnecessary, the adjustment work can be promptly ended without continuing the unnecessary adjustment work. ..

Further, in the light amount measuring device 1, it is determined that the emission amount corresponds to the “adjustment value” within the “target adjustment value range” in the “first determination process”, and the “second determination process” is performed. In “the first chromaticity value: x′, y′”, it is determined that the “chromaticity value: x, y” within the range of “tolerance: Δx′, Δy′” is not the “first condition”. , And in the “first determination process”, it is determined that the emission amount corresponds to the “adjustment value” within the “target adjustment value range”, and in the “second determination process”, “target photometric amount: Y′”. When the at least one of the "second conditions" for determining that the "photometric amount: Y" within the "allowable error: ΔY'" is not satisfied, the "target" specified immediately before is satisfied. A "target adjustment value range" narrower than the "adjustment value range" is specified (step 30), and the specified new "target adjustment value range" is used as new "adjustment information" to generate the adjustment value range data D0. The "first determination process" and the "second determination process" are executed again.

Therefore, according to the light amount measuring device 1, for example, the emission amounts of the laser beams Lr, Lg, and Lb correspond to the “lower limit value” and the “adjustment value” near the “upper limit value” of the “target adjustment value range”. The state in which the “chromaticity value” and/or the “photometric amount” of the combined light Lrgb of the laser lights Lr, Lg, and Lb are not within the target range by adjusting the emission amount (“first condition”). Even if at least one of the "second condition" is satisfied), the adjustment work is performed so that the "adjustment value" is automatically within the newly specified "target adjustment value range". By doing so, it is possible to surely adjust both the “chromaticity value” and the “photometric amount” of the combined light Lrgb to be values within the target range.

The configurations of the “adjustment information generation device” and the “adjustment work auxiliary device” are not limited to the above-described example of the configuration of the light amount measurement device 1. For example, in the “adjustment range specifying process”, the configuration in which the “target adjustment value range” is specified (calculated) by the calculation process has been described as an example, but the procedure for specifying the “target adjustment value range” is not limited to this. Not done. Specifically, as an example, instead of the “adjustment range specifying process” of step 23 in the adjusting work assisting process 20 described above, the “target laser output values P′r, P′g, P′b” specified in step 22 are specified. Value is randomly (randomly) changed within a predetermined range, and "chromaticity value: x, y" and "photometric value" measured by the "laser output value: Pr, Pg, Pb" are measured. It is possible to adopt a configuration in which the “quantity: Y” is simulated and the “lower limit value” and the “upper limit value” of the “target adjustment value range” are specified according to the simulation result.

More specifically, as the “adjustment range specifying process”, first, the values of the “target laser output values P′r, P′g, P′b” which are an example of the “target adjustment value” are defined in advance. A combination of “virtual laser output values: Pvr, Pvg, Pvb (an example of “virtual adjustment value”) which is randomly (randomly) changed within an adjustment value change range (± several% range as an example)” Several hundreds to several thousands are generated, and for each of the generated “virtual laser output values: Pvr, Pvg, Pvb”, “predicted chromaticity value: xv, yv” and “predicted photometric amount: Yv” are calculated. Next, the “predicted chromaticity value: xv, yv” within the range of “allowable error: Δx′, Δy′” with respect to the “target chromaticity value: x′, y′” is calculated, and the “target photometric amount” is calculated. The "virtual laser output value: Pvr, Pvg, Pvb" in which the "predicted photometric amount: Yv" within the range of "tolerance: ΔY'" with respect to "Y'" is calculated is specified.

Subsequently, among the identified "virtual laser output values: Pvr, Pvg, Pvb", the lowest value "virtual laser output value: Pvr" is set as the lower limit value of the "laser output value: Pr" and the highest value. The "target laser adjustment value range" of the "laser output value: Pr" for the red laser light Lr is specified with the value "virtual laser output value: Pvr" as the upper limit value of the "laser output value: Pr", and the lowest value The "virtual laser output value: Pvg" is set as the lower limit value of the "laser output value: Pg", and the highest "virtual laser output value: Pvg" is set as the upper limit value of the "laser output value: Pg". The "target adjustment value range" of the "laser output value: Pg" and the lowest value "virtual laser output value: Pvb" is set as the lower limit value of the "laser output value: Pb" and the highest value. The "target adjustment value range" of the "laser output value: Pb" for the blue laser light Lb is specified by setting the "virtual laser output value: Pvb" of above as the upper limit of the "laser output value: Pb".

Then, the adjustment value range data D0 as the “adjustment information” is generated based on the specified “target adjustment value range”, and the generated adjustment value range data D0 is stored in the storage unit 7. With the above, the “adjustment range specifying process” is completed. Since each process after the "adjustment range specifying process" is completed (processes after step 24 in the adjustment work auxiliary process 20) is the same as the above-mentioned example, duplicated description will be omitted.

According to the light quantity measuring device 1 that specifies the “target adjustment value range” and generates the adjustment value range data D0 as the “adjustment information” in such a procedure, the light amount measuring device 1 specifies the adjustment target range 3 based on the adjustment value range data D0. Based on the “target adjustment value range” for each of the two laser beams Lr, Lg, Lb, at least the emission amount of each laser light L becomes the emission amount corresponding to the “adjustment value” within the respective “target adjustment value range”. When it is not, it can be judged that the "target chromaticity value: x', y'" and the "target photometric amount: Y'" are not in the measurement state (adjustment is not completed). Therefore, for example, "chromaticity value: x, y" and "photometric amount: Y" measured at that time, "target chromaticity value: x', y'" and "target photometric amount: Y'" In contrast to the conventional adjustment method in which it is necessary to estimate the emission amount of the three laser beams Lr, Lg, and Lb based on the above, it is necessary to estimate the adjustment amount, any of the laser beams Lr, Lg, and Lb It is possible to reliably and easily recognize whether the emission amount should be changed, and which of the laser beams Lr, Lg, and Lb should be increased and which should be reduced. As a result, even an operator unfamiliar with this kind of adjustment work can easily perform the adjustment work in a short time.

Further, although an example of the processing procedure in which the laser projector including the red laser, the green laser, and the blue laser is set as the “adjustment target” has been described, the “light output device” as the “adjustment target” is not limited to this, for example, "Red light", "green light", and "blue light" are used as "adjustment targets" for various display devices such as liquid crystal displays and organic EL displays equipped with "red light source", "green light source" and "blue light source". It is also possible to assist the work of adjusting the emission amount of. In this case, in the liquid crystal display or the organic EL display, the “red light source” emits light having a wavelength other than “red light”, and the “green light source” emits light having a wavelength other than “green light”. In addition, it is known that light having a wavelength other than “blue light” is emitted from the “blue light source”.

Therefore, when the liquid crystal display or the organic EL display is the “adjustment target”, as an example, instead of the light receiving units 2R, 2G, 2B and the signal conversion units 3R, 3G, 3B in the light quantity measuring device 1 described above, , "Adjustment information generation" with a spectrophotometer configuration that can measure the photometric amount of light of each wavelength over a sufficiently wide wavelength range from the "red light" wavelength region to the "blue light" wavelength region Device" and "adjustment work auxiliary device". In the “measurement process”, as an example, “tristimulus values: Xr, Yr, Zr” of the light output from the “red light source” is measured with only the “red light source” turned on, and the “green color” is measured. Measures the "tristimulus values: Xg, Yg, Zg" of the light output from the "green light source" with only the "light source" turned on, and the "blue light source" with only the "blue light source" turned on. By measuring the "tristimulus values: Xb, Yb, Zb" of the light output from each of the light sources, the tristimulus values for each light from each light source can be measured without being affected by the light output from other light sources. taking measurement.

Furthermore, in the “adjustment value specifying process”, as an example, “target chromaticity value: x′, y′”, “target photometric amount: Y′”, and each “tristimulus value: measured by the measurement process”: Xr, Yr, Zr, Xg, Yg, Zg, Xb, Yb, Zb", "target chromaticity value: x', y'" and "target photometric amount: for each light to be output from each light source. "Target tristimulus values: X'r, Y'r, Z'r, X'g, Y'g, Z'g, X'b, Y'b, Z'b" itself corresponding to "Y'" Calculate as "target adjustment value". In this case, the obtained “target adjustment value” is as shown in [Equation 8]. The calculation method of “correction coefficient: k, l, m” and the like are the same as those in the above-described example, and thus detailed description thereof will be omitted.

Further, in the “adjustment range identification processing”, the “tristimulus value: Xr” of the light from the “red light source” is performed in the same manner as the method of identifying the adjustment range of the “laser output value: Pr, Pg, Pb” described above. Adjustment range, "tristimulus value: Yr" adjustment range, and "tristimulus value: Zr" "target adjustment value range" and "green light source" light "tristimulus value: Xg" adjustment range , "Tristimulus value: Yg" adjustment range, "tristimulus value: Zg" "target adjustment value range", and "blue light source" light "tristimulus value: Xb" adjustment range, "three The adjustment range of "stimulus value: Yb" and the "target adjustment value range" of "tristimulus value: Zb" are specified. At this time, either the method of calculating the "lower limit value" and "upper limit value" of the "target adjustment value range" or the method of specifying the "lower limit value" and "upper limit value" of the "target adjustment value range" by simulation May be adopted. This completes the generation of the “adjustment information” that can specify each “target adjustment value range”.

On the other hand, in the adjustment work, as an example, the amount of light emitted from the "red light source" is adjusted with only the "red light source" turned on, and the "green light source" is turned on with only the "green light source" turned on. The amount of light emitted from the “blue light source” is adjusted while only the amount of light emitted from the “blue light source” is turned on. At this time, for example, when the emission amount of light from the “red light source” is being adjusted, “tristimulus values: X, Y, Z” of the light from the “red light source” are measured, and the values are “ When the value within the adjustment range of “tristimulus value: Xr”, the adjustment range of “tristimulus value: Yr”, and the adjustment range of “tristimulus value: Zr”, the light is emitted from the “red light source”. It is determined that the adjustment regarding the amount is completed. Similarly, the amount of light emitted from the “green light source” or the light emitted from the “blue light source” is also adjusted.

As a result, when all of the “red light source”, “green light source” and “blue light source” are turned on in the liquid crystal display or the organic EL display, “target chromaticity value: x′, y′” and “ The target photometric amount: Y'" can be adjusted so that it can be measured. When adjusting the liquid crystal display or the organic EL display, as an example, each time the amount of light emitted from any of the “light sources” is changed (or at an arbitrary timing designated by the operator), Turn on all the “light sources” and measure the “chromaticity value: x, y” and “photometric amount: Y” of the “composite light” from each “light source”, and the measurement result is within the allowable range. It is preferable to employ a configuration in which it is determined whether or not the adjustment is completed and, at the time when it is determined that the value is within the allowable range, the fact that the adjustment is completed is notified.

Further, in the “first notification process”, the measurement value (for example, the measured “laser output value: P” value) is measured depending on whether or not the value falls within the “target adjustment value range”. By changing the background color of the value, it is notified that the "adjustment value (measurement value)" is within the "target adjustment value range", and the adjustment status notification display 40 (bars 41, 42 and cursor 43). ) Is displayed to notify whether or not the “adjustment value (measurement value)” has become a value within the “target adjustment value range” depending on the position of the cursor 43 with respect to the bar 42. A specific configuration for notifying such a matter is not limited to the above example.

For example, by switching the display/non-display of a predetermined pattern, the configuration that notifies that the "adjustment value (measurement value)" has become a value within the "target adjustment value range", or from the blinking display of the measurement value or pattern It is possible to employ a configuration or the like for notifying that the “adjustment value (measured value)” has become a value within the “target adjustment value range” by switching to the static display. In addition, adopt a configuration that notifies that the "adjustment value (measurement value)" is within the "target adjustment value range" by the output of a predetermined voice (buzzer sound or voice message output). Can also Similarly, the notification method in the "second notification process" is not limited to the display of character strings such as "PASS", and various notification methods similar to those in the "first notification process" can be adopted. ..

Furthermore, for example, the emission amount of the laser light L from each laser is set to the emission amount corresponding to the “adjustment value” in the “target adjustment value range (adjustment completion determination range)” specified based on the adjustment value range data D0. The configuration/method for executing the “first determination process” for determining whether or not the “first determination process” and the “first notification process” for notifying the result of the “first determination process” have been described as an example. Instead of such a configuration and method, the emission amount of the laser light L from each laser exceeds the emission amount corresponding to the "center value" of the "target adjustment value range" specified based on the adjustment value range data D0. The result of the “third determination process” and the “third determination process” that determine whether the emission amount corresponds to the “adjustment value” within the “target adjustment value range” by changing It is also possible to adopt a configuration/method for executing the “third notification process”.

Specifically, in the “third determination process” and the “third notification process”, as an example, the “laser output value: Pr” from the red laser is smaller than the “adjustment completion determination range”. When the emission amount of the red laser light Lr is increased by the adjustment work, the "laser output value: Pr" exceeds the central value of the "adjustment completion determination range" and changes to a value within the "adjustment completion determination range". Whether or not (that is, whether or not the “laser output value: Pr” is larger than the central value of the “adjustment completion determination range” and is equal to or less than the upper limit of the “adjustment completion determination range”) And informs the result.

At this time, when the emission amount of the red laser light Lr is increased more than necessary by the adjustment work (that is, the “laser output value: Pr” is changed beyond the central value of the “adjustment completion determination range”). However, when it is changed to a value larger than the “adjustment completion determination range”), in the “third determination process” and the “third notification process” to be executed next, “laser output value: Pr Is changed to a value within the “adjustment completion judgment range” beyond (lower than) the central value of the “adjustment completion judgment range” (that is, “laser output value: Pr” is changed to the “adjustment completion judgment range”). Is smaller than the central value of “and is greater than or equal to the lower limit value of the “adjustment completion determination range”), and the result is notified.

By adopting such a configuration and method, it is recognized that the emission amount of the laser light L from the laser is not the emission amount corresponding to the “adjustment value” within the “target adjustment value range (adjustment completion determination range)”. When the operator gradually changes the emission amount during the adjustment work, the adjustment work is continued until the emission amount exceeds the central value of the “target adjustment value range”, and thus the emission amount is The adjustment work ends when it reaches the "adjustment value" within the "target adjustment value range", that is, when it reaches a value corresponding to the "adjustment value" close to the upper and lower limits of the "target adjustment value range". By avoiding such a situation, it is possible to suitably adjust until the emission amount corresponding to the “adjustment value” close to the center value of the “target adjustment value range” is specified.

Furthermore, when at least one of the “first condition” and the “second condition” is satisfied, the “adjustment completion determination range” narrower than the “adjustment completion determination range” specified at that time is specified, The example has been described in which the new “adjustment completion determination range” is specified by changing the lower limit value and the upper limit value of the “adjustment completion determination range” within a predetermined range, but instead of such a configuration, For example, the value of “tolerance: Δx′, Δy′, ΔY′” used to specify the “adjustment completion determination range” in the process of step 23 (adjustment range specifying process) performed immediately before is It is also possible to adopt a configuration in which a new “adjustment completion determination range” is specified by changing the value to a small value and performing the process of step 23 (adjustment range specifying process) again. When such a configuration is adopted, in the subsequent processing of step 26, the small "allowable error: Δx', Δy' used when the new "adjustment completion determination range" is specified. , ΔY′”, instead of the “allowable error: Δx′, Δy′, ΔY′” defined at the start of the adjustment work auxiliary process 20, the combined light Lrgb of the combined light Lrgb is determined. Both the “chromaticity value” and the “photometric amount” can be reliably adjusted so as to be values within the initial target range.

On the other hand, the light quantity measuring device 1 is operated as an “adjustment work auxiliary device” so that the worker emits the respective laser lights Lr, Lg, Lb (or light sources in various displays such as a liquid crystal display and an organic EL display). The amount of light emitted from each of the laser beams Lr, Lg, Lb, etc. is set as a “target” by operating the light amount measuring device 1 as an “adjusting device”. It is also possible to automatically adjust the "adjustment value" within the "adjustment value range".

Specifically, the processes up to step 23 in the adjustment work assisting process 20 (processes executed as the “adjustment information generation device”) are executed to generate the adjustment value range data D0 as the “adjustment information”. .. Next, by executing the same processing as the processing of step 24 in the adjustment work auxiliary processing 20, "laser output values: Pr, Pg, based on the detection signal data Da, Db output from each signal conversion unit 3" is performed. Pb" is specified. Subsequently, as shown by the broken line in FIG. 1, the light quantity measuring device 1 (processing unit 6) and the laser projector are connected to each other by a signal cable.

Next, it is determined whether or not the specified "laser output value: Pr, Pg, Pb" is within the "target adjustment value range (adjustment completion determination range)" specified based on the adjustment value range data D0. Judgment (an example of “judgment processing for judging whether the emission amount of light from each light source is the emission amount corresponding to the adjustment value within the target adjustment value range specified based on the adjustment information”).

At this time, as an example, when the “laser output value: Pr, Pg, Pb” is a value smaller than the “target adjustment value range”, the laser projector (each laser) is controlled via the above-mentioned signal cable. Laser output value: Pr, Pg, Pb” is increased (an example of “emission amount adjustment processing for changing the emission amount of light from each light source by a predetermined change amount”). When the “laser output value: Pr, Pg, Pb” is larger than the “target adjustment value range”, the laser projector (each laser) is controlled via the signal cable to obtain the “laser output value: Pr, Pg, Pb” (another example of “emission amount adjustment processing for changing the emission amount of light from each light source by a predetermined change amount”).

In this case, in the light quantity measuring device 1 of this example, when the processing unit 6 determines that the specified “laser output value: Pr” is not the output value within the “target adjustment value range”, the processing unit 6 specifies the “laser output value: Pr”. The laser output value: Pr" and the center value of the "target adjustment value range" (that is, the above-mentioned "target laser output value P'r") are calculated, and the calculated value is used as the red laser light from the red laser. It is defined as the change amount of the emission amount of Lr.

Next, when the specified “laser output value: Pr” is a value smaller than the “target adjustment value range”, the laser projector (red laser) is configured to increase the emission amount of the red laser light Lr by the specified change amount. When the specified “laser output value: Pr” is larger than the “target adjustment value range”, the laser projector (red color is adjusted to reduce the emission amount of the red laser light Lr by the specified change amount. Laser) control. Although detailed description is omitted, the same processing as the red laser light Lr (“determination processing”, “regulation of change amount”, and “change of output value”) is performed on the green laser light Lg and the blue laser light Lb. Execute.

Subsequently, the processing unit 6 again specifies the “laser output value: Pr, Pg, Pb” based on the detection signal data Da, Db output from each signal conversion unit 3, and specifies the specified “laser output value: It is re-determined whether "Pr, Pg, Pb" is within the "target adjustment value range" (an example of "determination processing executed after the emission amount adjustment processing"). At this time, when the specified "laser output value: Pr, Pg, Pb" is a value in the "target adjustment value range", the fact is notified and a series of adjustment processing is ended. On the other hand, when the specified "laser output value: Pr, Pg, Pb" is not within the "target adjustment value range" ("the amount of light emitted from each light source is out of the target adjustment value range, When it is determined that the output amount has been changed to the corresponding output amount”), the “regulation of change amount” and “change of output value”) are executed again.

In this case, in the light quantity measuring device 1 of the present example, for example, when the "regulation of the change amount" and the "change of the output value" for the red laser light Lr are performed for the second time and after, the specified "laser output value: Pr" is first set. And the center value of the "target adjustment value range" are calculated, and the "calculated difference" is compared with the "change amount" specified in the "change amount specification" executed immediately before.

At this time, when the “calculated difference” is smaller than the “change amount” specified immediately before, the “calculated difference” is newly specified as the change amount of the emission amount of the red laser light Lr ( The change amount that changes the emission amount of light from each light source during the emission amount adjustment process that is executed is specified in advance as compared with the change amount that changes the emission amount of light from each light source during the emission amount adjustment process that was executed immediately before. An example of the processing "define only the amount" is executed), and "change of output value" for the specified "change amount" is executed.

Further, when the “calculated difference” is larger than the “change amount” specified immediately before, that is, when the emission amount is changed by the specified “change amount”, the emission amount of the red laser light Lr or the like is changed. When it is found that the change amount is larger than expected, the amount is smaller by a predetermined amount than the “change amount” specified immediately before (for example, 1/2 of the “change amount” specified immediately before). Amount) is defined as a new “change amount” (the change amount for changing the emission amount of light from each light source during the emission amount adjustment process to be executed next is defined as the change amount during the emission amount adjustment process performed immediately before). Another example of the processing of "defining the amount of light emitted from the device by a predetermined amount less than the changed amount"), and "changing the output value" for the prescribed "change amount" is executed.

By repeating these processes until the “laser output value: Pr, Pg, Pb” specified based on the detection signal data Da, Db becomes a value within the “target adjustment value range”, each laser beam The adjustment process for L is completed. The above-mentioned "change amount" is not limited to the difference between the specified "laser output value: Pr, Pg, Pb" and the center value of the "target adjustment value range". The value corresponding to the size of “” can be defined as “change amount”, or can be arbitrarily set by an operator or the like based on an empirical rule. Further, although an example of the adjustment processing of the laser lights Lr, Lg, Lb has been described, the adjustment processing can be performed by setting various display devices such as a liquid crystal display and an organic EL display as “adjustment targets”.

As described above, the light quantity measuring device 1 is configured such that the light emission quantity from each light source can be adjusted so that an arbitrary color and arbitrary brightness can be recognized, and the light emission quantity from each light source can be adjusted. Executes the "determination process" to determine whether the emission amount corresponds to the adjustment value within the "target adjustment value range" specified based on the "adjustment information", and the emission amount of light from each light source is After the "emission amount adjustment process" that changes the emission amount of light from each light source by a predetermined change amount when the emission amount does not correspond to the adjustment value within the "target adjustment value range" The “determination process” is executed again.

Therefore, according to the light amount measuring device 1, the operator performs the adjustment work so as to define the “target adjustment value range” or the emission amount corresponding to the adjustment value within the specified “target adjustment value range”. Without limitation, from the process of defining the “target adjustment value range” to the adjustment process such that the emission amount of light from the light source becomes the emission amount corresponding to the adjustment value within the “target adjustment value range”. Since the process can be executed automatically, the amount of light emitted from each light source can be recognized so that even a person who is unfamiliar with this type of device (work) can recognize any color and any brightness. Can be adjusted reliably and easily.

Further, in the light amount measuring device 1, in the “determination process” executed after the “emission amount adjustment process”, the emission amount of light from each light source corresponds to an adjustment value outside the “target adjustment value range”. When it is determined that the amount of light has been changed, the change amount that changes the amount of light emitted from each light source during the next "emission amount adjustment process" is changed from each light source during the "emission amount adjustment process" that was executed immediately before. The amount of light emitted is changed by a predetermined amount less than the changed amount.

Therefore, according to the light amount measuring device 1, when the emission amount corresponding to the specified “change amount” is changed, the emission amount of the light from the light source changes more than expected. Even if there is, the amount of change in the emission amount in the "emission amount adjustment process" after the second time gradually decreases, so the emission amount of light from each light source is changed to the "target adjustment value" by a small number of "emission amount adjustment processes". It is possible to adjust the emission amount corresponding to the adjustment value within the “range”.

1 Light amount measuring device 2R, 2G, 2B Light receiving part 3R, 3G, 3B Signal converting part 4 Operation part 5 Display part 6 Processing part 7 Storage part 10a, 10b Light receiving sensor 11, 12a, 12b Optical filter 13a, 13b Photoelectric converting part 20 Adjustment work auxiliary processing 40 Adjustment state notification display 41r, 41g, 41b, 42r, 42g, 42b Bar 43r, 43g, 43b Cursor D0 Adjustment value range data Da, Db Detection signal data Lr Red laser light Lg Green laser light Lb Blue laser Optical Lrgb Synthetic light Sa, Sb Detection signal

In order to achieve the above object, the adjustment information generating apparatus according to claim 1 changes the amount of light emitted from a red light source, the amount of light emitted from a green light source, and the amount of light emitted from a blue light source. The adjustment information for adjusting the amount of light emitted from each light source is adjusted so that any color and any brightness can be recognized with the light output device that arbitrarily changes the color and brightness as an adjustment target. In the adjustment information generating device having a processing unit for generating, the processing unit uses the red laser light from the red laser as the light from the red light source, and the green laser light from the green laser from the green light source. As the light, and when the adjustment information is generated as the blue laser light from the blue laser as the light from the blue light source, a measurement process for measuring each tristimulus value for each light output from each light source, Based on the target chromaticity value corresponding to the arbitrary color, the target photometric amount corresponding to the arbitrary brightness, and each tristimulus value measured by the measurement process, for each light to be output from each light source An adjustment value specifying process for calculating a target adjustment value capable of specifying a target tristimulus value corresponding to the target chromaticity value and the target photometric amount, the target chromaticity value, the target photometric amount, and a preset value Based on the chromaticity value allowable error, the preset photometric amount allowable error, and the target adjustment values, the range of the chromaticity value allowable error with respect to the target chromaticity value for each light to be output from each of the light sources. The chromaticity value within the range and the adjustment completion judgment range for the emission amount corresponding to the target tristimulus value range that is the photometric amount within the range of the relevant photometric amount relative to the target photometric amount are each calculated as the target adjustment value range. The adjustment range specifying process is performed, and the adjustment information is generated based on each of the target adjustment value ranges calculated by the adjustment range specifying process.

Further, the adjusting work assistance apparatus according to claim 2, a adjustment work assist device having the adjustment information generating apparatus according to claim 1 Symbol placement, wherein the processing unit, extraction intensity of the light from each light source the first determination process of determining whether or become outgoing injection amount in the target adjustment value range specified based on the adjustment information, and a first notification that identifiable informed the result of the first determination process Execute the process.

Further, adjusting work assist device according to claim 3, wherein, in the adjustment operation assisting device according to claim 2, wherein the processing unit, the combined light of the light from each light source, the chromaticity value for the target chromaticity value A second determination process is performed to determine whether the chromaticity value is within the allowable error range and whether the photometric amount is within the allowable photometric amount error range with respect to the target photometric amount. At the same time, the combined light is a chromaticity value within the range of the chromaticity value allowable error for the target chromaticity value, and a photometric amount within the range of the photometric amount allowable error for the target photometric amount. When the determination is made, the second notification processing is executed to notify the completion of the adjustment of the amount of light emitted from each light source in a specifiable manner.

Moreover, the adjustment work assist device of claim 4, wherein, in the adjustment work assisting device according to claim 3, wherein the processing unit, when in the first determination process has become outgoing injection amount in the target adjustment value range A first condition for determining and determining that the chromaticity value is not within the range of the chromaticity value allowable error with respect to the target chromaticity value in the second determination process, and the target adjustment in the first determination process. It was determined that the outgoing injection amount within the value range, and at least a second condition for determining not reached the photometric quantity in the range of the photometric quantity permissible error for the target metering mass in the second determination process When one condition is satisfied, the target adjustment value range narrower than the target adjustment value range specified immediately before is specified, and the specified new target adjustment value range is set as the new adjustment information. The 1 determination process and the second determination process are executed again.

Adjustment assistance device according to claim 5 is an adjustment work assist device having the adjustment information generating apparatus according to claim 1 Symbol placement, the processing unit, wherein the extraction intensity of light from each light source, wherein third determination process of determining whether to be varied beyond the emission amount corresponding to the central value of the target adjustment value range specified based on the adjustment information has become injection amount output in the target adjustment value range , And a third notification process that notifies the result of the third determination process in a identifiable manner.

Adjustment device according to claim 6 is provided with adjustment information generating apparatus according to claim 1 Symbol placement, the emission amount of light from each light source as the arbitrary color and the arbitrary brightness is recognized respectively a adjustably configured adjustment device, wherein the processing unit, taken out injection amount in the target adjustment value range emitted amount of light is specified based on the adjustment information from the respective light sources and executes determination processing of dolphin, when the emission amount of light from the respective light sources is not in the outgoing injection amount in the target adjustment value range, wherein the predefined emitted amount of light from each light source After performing the emission amount adjustment process of changing only the change amount, the determination process is performed again.

The adjusting device according to claim 7, the adjustment device according to claim 6, wherein the processing unit in the determination process to be executed after the extraction intensity adjustment process, the the emission of light from each light source, the target when it is determined to have been changed in injection amount out outside the target adjustment value range beyond the adjustment value range, the at the exit amount adjusting process to be executed next the change to change the emission amount of light from each light source The amount is defined by a predetermined amount less than the changed amount by which the emission amount of light from each light source is changed during the emission amount adjustment process performed immediately before.

Therefore, according to the adjustment information generating apparatus according to claim 1 Symbol placement, based on the three optical target adjusting value range of each (light from each light source) specified based on the adjustment information, at least, from the light sources in a state where the emission amount of light is not the outgoing injection amount in each target adjustment value range, not in the state of the target chromaticity value and the target metering quantity is measured (adjusted is not completed) Therefore, for example, based on the chromaticity value and the photometric amount measured at that time and the target chromaticity value and the target photometric amount, the necessity or the adjustment amount of the emission amount of each light is determined. Unlike conventional adjustment methods that need to be estimated, which emission amount of each light should be changed, and which emission amount of each light should be increased and which emission amount should be decreased. Can be recognized reliably and easily. As a result, even an operator unfamiliar with this kind of adjustment work can easily perform the adjustment work in a short time.

According to adjustment assistance device according to claim 2, emission of light from each light source, the determine has become out injection amount in the target adjustment value range specified based on the adjustment information 1 and executes the determination process by executing a first notification process of identifying possible to notify the result of the first determination process, exits extraction intensity of the light from the light source in the adjustment operation in the target adjustment value range injection amount Since it is possible to easily recognize whether or not the adjustment has been performed, even an operator unfamiliar with this type of adjustment work can more easily execute the adjustment work.

According to the adjusting work auxiliary device of claim 3, the combined light of the lights from the respective light sources has a chromaticity value within the range of the chromaticity value permissible error with respect to the target chromaticity value, and the photometric amount permissible with respect to the target photometric amount. When it is determined that the photometric amount is within the range of the error, by executing the second notifying process capable of specifying that the adjustment of the emission amount of the light from each light source is completed, during adjustment of each light from the light source, either be emitted amount of light is not made to the outgoing injection amount in the target adjustment value range, chroma chroma value of the combined light to the target chromaticity value It is not necessary when the photometric amount is within the value tolerance range and the photometric amount tolerance value is within the range of the target photometric amount, that is, when no further adjustment work is required. The adjustment work can be promptly completed without continuing the adjustment work.

The adjustment work assistance device according to claim 4, it is determined that a outgoing injection amount in the target adjustment value range in the first determination process, and a chromaticity of tolerance with respect to the target chromaticity value in the second determination process to the target metering mass in then determined that the outgoing injection amount in the target adjustment value range, and the second determination process in the first condition, and the first determination process determines that not in the chromaticity values in the range When at least one of the second conditions for determining that the photometric amount is not within the photometric amount allowable error range is satisfied, a target adjustment value range narrower than the target adjustment value range specified immediately before is specified. Then, the first determination process and the second determination process are executed again using the specified new target adjustment value range as new adjustment information.

Therefore, according to the adjustment operation assisting device according to claim 4, for example, of the combined light by emission of light from each light source is adjusted to output morphism amount near the lower limit and upper limit of the target adjustment value range Even if the chromaticity value and/or the photometric amount does not fall within the target range (at least one of the first condition and the second condition is satisfied), the new value is automatically specified. By performing the adjustment work so that the emission amount is within the target adjustment value range, it is possible to surely adjust both the chromaticity value of the combined light and the photometric amount to be within the target range.

According to the adjustment work assisting device of the fifth aspect, the emission amount of the light from each light source is changed to exceed the emission amount corresponding to the center value of the target adjustment value range specified based on the adjustment information. by executing the third determination process of determining whether or become outgoing injection amount in the target adjustment value range, and a third notification process of identifying possible to notify the result of the third determination process Te, of the light from the light source when the operator recognized that it is not the output morphism amount in the amount emitted the target adjustment value range changes the emission amount gradually during adjustment, the value is emitted amount specified corresponding to the center value of the target control value range since the be continued adjustment until the broadcast and exceeded, when the amount of emitted becomes a value within the target adjustment value range, i.e., elevation near infused into the upper limit value and the lower limit value of the target control value range and avoid a situation where adjustment work at the time point when the amount from being terminated, the amount y de have close to the center value of the target control value range can be suitably adjusted to a state that is identified.

In the adjusting device according to claim 6, the amount of light emitted from each light source can be adjusted so that any color and any brightness can be recognized, and the amount of light emitted from each light source is adjusted. and executes determination processing to determine which is the injection amount output in the target adjustment value range specified based on the information, the emission amount of light from each light source has become outgoing injection amount in the target adjustment value range If not, the determination process is performed again after performing the emission amount adjustment process of changing the emission amount of the light from each light source by a predetermined change amount.

Therefore, according to according to the adjustment device of claim 6, or the operator defines a target adjustment value range, without or perform adjustment so that the output injection amount in the target adjustment value range specified target from the process of defining the adjustment value range, since a series of processes from injection amount become such adjustment processing exits in the target adjustment value amount ranging emission of light from the light source can be automatically executed, this type Even a person who is unfamiliar with the device (work) can reliably and easily adjust the amount of light emitted from each light source so that any color and any brightness can be recognized.

Adjustment device according to claim 7, wherein, in the determination process to be executed after the extraction intensity adjustment processing, when the emission amount of light from each light source, is determined to have been changed in injection amount out outside the target adjustment value range, The change amount that changes the emission amount of light from each light source during the next emission amount adjustment process is specified in advance as compared with the change amount that changes the emission amount of light from each light source during the immediately previous emission amount adjustment process. The amount specified is reduced.

Therefore, according to the adjusting device of claim 7 , when the emission amount is changed by the specified change amount, the emission amount of the light from the light source changes more than expected. even, since the amount of change emission amount in the second and subsequent extraction intensity adjustment processing is gradually reduced, out morphism in the target adjustment value range emitted amount of light from each light source by a small number of times of extraction intensity adjustment process The amount can be adjusted.

The light amount measuring device 1 shown in FIG. 1 is an example of an “adjustment work auxiliary device” and an “adjusting device” configured by including an “adjustment information generating device”, and is a red laser (an example of a “red light source”). Of the red laser light Lr from the laser, the amount of green laser light Lg from the green laser (an example of “green light source”), and the amount of blue laser light Lb from the blue laser (an example of “blue light source”) By changing the laser light Lr, the green laser light Lg, and the combined light Lrgb of the blue laser light Lb, thereby arbitrarily changing the color and brightness to be recognized by the viewer (an example of a “light output device”). ) As the "adjustment target" (an example of the work of "adjusting the amount of light emitted from each light source so that any color and any brightness can be recognized") Alternatively, the automatic adjustment process is configured to be executable.

Therefore, according to this light quantity measuring device 1, at least each laser light L is emitted based on the “target adjustment value range” for each of the three laser lights Lr, Lg, Lb specified based on the adjustment value range data D0. in a state where the amount is not the injection amount output in each "target adjustment value range", "target chromaticity value: x ', y'" and "target photometric: Y '" to the state is measured Since it can be judged that it is not (adjustment is not completed), for example, “chromaticity value: x, y” and “photometric amount: Y” measured at that time, and “target chromaticity value” : X', y'" and "target photometric amount: Y'", it is necessary to estimate whether or not the emission amount of the three laser beams Lr, Lg, and Lb needs to be adjusted, and a conventional adjustment method. Unlike the above, which emission amount of each laser light Lr, Lg, Lb should be changed, and which emission amount of each laser light Lr, Lg, Lb is increased and which emission amount is decreased. It is possible to surely and easily recognize what should be done. As a result, even an operator unfamiliar with this kind of adjustment work can easily perform the adjustment work in a short time.

Further, according to the light quantity measuring device 1, or emission amount of the laser beam L from the laser, based on the adjustment value range data D0 has become out injection amount in the "target adjustment value range" specified The adjustment is performed by executing the "first judgment process" (steps 24 and 25) and executing the "first notification process" that notifies the result of the "first judgment process" in a identifiable manner (step 28). it is possible to easily recognize the emission amount of the laser beam L is whether it is injection amount output in the "target adjustment value range" from the laser working, in unfamiliar workers in this type of adjustment Even if there is, the adjustment work can be performed more easily.

Furthermore, in the light quantity measuring device 1, and determined that the injection amount output in the "target adjustment value range" in the "first determination process" above and "target chromaticity value in the" second determination process " : X', y'" is within the range of "allowable error: Δx', Δy'", and "first condition" is determined not to be "chromaticity value: x, y", and "first condition" determination processing "is determined that the injection amount output in the" target adjustment value range "in, and" second determination process "in the" target photometric: Y '' tolerance for ": △ Y 'range of" When at least one of the "second conditions" for determining that the "metering amount: Y" is not satisfied, the "target adjustment value range" narrower than the "target adjustment value range" specified immediately before is satisfied. Is specified (step 30), the specified new “target adjustment value range” is used as new “adjustment information” to generate the adjustment value range data D0, and the “first determination processing” and “second determination processing” are performed. Run again.

Therefore, according to the light quantity measuring device 1, for example, the laser beams Lr, Lg, extraction intensity of Lb is adjusted to output morphism amount near "lower limit" and "upper limit" of the "target adjustment value range" Therefore, the “chromaticity value” and/or the “photometric amount” of the combined light Lrgb of the laser lights Lr, Lg, and Lb are not within the target range (“first condition” and “second condition”). Even if at least one of the two is satisfied), by performing the adjustment work so that the emission amount is automatically within the newly specified “target adjustment value range”, the combined light Lrgb Both the “chromaticity value” and the “photometric amount” can be reliably adjusted so as to be values within the target range.

The configurations of the “adjustment information generation device” and the “adjustment work auxiliary device” are not limited to the above-described example of the configuration of the light amount measurement device 1 .

For example , in the “first notification process”, the measurement value (for example, the value of the “laser output value: P” to be measured) is measured depending on whether the value is within the “target adjustment value range”. By changing the background color of the value, it is notified that the “ emission amount (measured value)” has become a value within the “target adjustment value range”, and the adjustment state notification display 40 (the bars 41, 42 and the cursor 43). ) Is displayed to notify whether or not the “ emission amount (measured value)” has become a value within the “target adjustment value range” depending on the position of the cursor 43 with respect to the bar 42. A specific configuration for notifying such a matter is not limited to the above example.

Specifically, as an example , by switching the display/non-display of a predetermined symbol, a configuration that notifies that the " emission amount (measured value)" has become a value within the "target adjustment value range", or the measured value It is possible to employ a configuration or the like for notifying that the " emission amount (measured value)" has become a value within the "target adjustment value range" by switching the blinking display or the symbol display to the static display. In addition, adopt a configuration that notifies that the " emission amount (measured value)" has become a value within the "target adjustment value range" by the output of a predetermined voice (buzzer sound or voice message output). Can also Similarly, the notification method in the "second notification process" is not limited to the display of character strings such as "PASS", and various notification methods similar to those in the "first notification process" can be adopted. ..

Further determines whether e.g. extraction intensity of the laser beam L from the laser, is "a target adjustment value range (adjustment completion determining range)" is specified based on the adjustment value range data D0 out in injection amount The configuration/method for executing the “first determination processing” and the “first notification processing” for informing the result of the “first determination processing” in a identifiable manner has been described as an example. Instead, the emission amount of the laser light L from each laser is changed to exceed the emission amount corresponding to the “center value” of the “target adjustment value range” specified based on the adjustment value range data D0. determine which is the target control value range "out in the injection amount" third determination processing ", and executes the" third determination process "third notification process of identifying possible to notify the results of""configuration - A method can also be adopted.

By adopting such a configuration and method, when the operator adjustment of emission amount of the laser beam L has been recognized that it is not the output morphism of the "target adjustment value range (adjustment completion determining range)" from the laser When the output amount is changed little by little, the adjustment work will be continued until it is notified that the output amount exceeds the center value of the "target adjustment value range". when it becomes the emitting amount of inner, i.e., to avoid a situation where adjustment work at the time point when extraction intensity close to the upper limit value and the lower limit value of the "target adjustment value range" from being terminated, "target adjustment value range amount y de have close to the center value of 'can be suitably adjusted to a state that is identified.

On the other hand, an example has been described in which the light quantity measuring device 1 is operated as an “adjustment work auxiliary device” to perform an adjusting work in which the worker adjusts the emission amounts of the laser lights Lr, Lg, Lb, respectively. Can be operated as an “adjusting device” to automatically adjust the emission amount of each of the laser beams Lr, Lg, Lb, etc. within the “target adjustment value range”.

Then, it is determined whether or not the specified "laser output value: Pr, Pg, Pb" is within the "target adjustment value range (adjustment completion determination range)" specified based on the adjustment value range data D0. determining (an example of "determination processing of determining the emission amount of light is in the out injection amount in the target adjustment value range specified based on the adjustment information from the respective light sources").

Subsequently, the processing unit 6 re-specifies the “laser output value: Pr, Pg, Pb” based on the detection signal data Da and Db output from each signal conversion unit 3, and specifies the specified “laser output value: It is again determined whether or not “Pr, Pg, Pb” is within the “target adjustment value range” (an example of “a determination process executed after the emission amount adjustment process”). At this time, when the specified “laser output value: Pr, Pg, Pb” is in the value of the “target adjustment value range”, the fact is notified and the series of adjustment processes are ended. On the other hand, specified: left off "the laser output value Pr, Pg, Pb" is a target adjustment value range emitted amount of light from ( "the light sources when not a value of" target adjustment value range "injection amount When it is determined that the value has been changed to (1)”, the “regulation of change amount” and “change of output value”) are executed again.

By repeating these processes until the “laser output value: Pr, Pg, Pb” specified based on the detection signal data Da, Db becomes a value within the “target adjustment value range”, each laser beam The adjustment process for L is completed. The “change amount” is not limited to the difference between the specified “laser output value: Pr, Pg, Pb” and the center value of the “target adjustment value range”, and as an example, the “target adjustment value range”. The value corresponding to the size of “” can be defined as “change amount”, or can be arbitrarily set by an operator or the like based on an empirical rule .

As described above, the light quantity measuring device 1 is configured such that the light emission quantity from each light source can be adjusted so that an arbitrary color and arbitrary brightness can be recognized, and the light emission quantity from each light source can be adjusted. run "determination process" determines based on the "adjustment information" has become out injection amount in the "target adjustment value range" specified, extraction intensity of light from each light source "target adjustment value when not in out injection amount in the range ", again executes the" determination process "after running" emission amount adjusting process "of changing only predefined change amount of emission of light from each light source ..

Therefore, according to the light quantity measuring device 1, without the operator or perform or define a "target adjustment value range", the adjustment operation so that the output injection amount in defined "target adjustment value range" , from the process that defines the "target adjustment value range", thereby automatically executing a series of processes up to the injection amount become such adjustment processing out of the exit of light in the "target adjustment value range" from the light source Therefore, even a person unfamiliar with this type of device (work) can reliably and easily adjust the amount of light emitted from each light source so that any color and any brightness can be recognized. You can

Further, in the light quantity measuring device 1, in the "determination process" to be executed after the "extraction intensity adjusting process", emission of light from each light source is changed to injection amount leaving out the "target adjustment value range" When it is determined that the light emission amount from each light source is changed in the next “emission amount adjustment process”, the light emission amount from each light source is changed in the immediately preceding “emission amount adjustment process”. The specified amount is specified to be less than the changed amount.

Therefore, according to the light amount measuring device 1, when the emission amount corresponding to the specified “change amount” is changed, the emission amount of the light from the light source changes more than expected. Even if there is, the amount of change in the emission amount in the "emission amount adjustment process" from the second time onward becomes gradually smaller. it can be adjusted to output morphism weight in the range ".

Claims (8)

A light output device that arbitrarily changes color and brightness by changing the amount of light emitted from the red light source, the amount of light emitted from the green light source, and the amount of light emitted from the blue light source is used as an adjustment target. An adjustment information generation device including a processing unit that generates adjustment information for adjusting the amount of light emitted from each light source so that colors and arbitrary brightness are recognized,
The processing unit is a measurement process for measuring tristimulus values for each light output from each light source, a target chromaticity value corresponding to the arbitrary color, a target photometric amount corresponding to the arbitrary brightness, And a target adjustment capable of specifying a target tristimulus value corresponding to the target chromaticity value and the target photometric amount for each light to be output from each of the light sources based on each of the tristimulus values measured by the measurement processing. Based on the adjustment value specifying process for calculating each value, the target chromaticity value, the target photometric amount, a prespecified chromaticity value allowable error, a prespecified photometric amount allowable error, and the target adjustment value, For each light to be output from each light source, a photometric amount within the range of the permissible error of the chromaticity value with respect to the target chromaticity value, and within the range of the permissible error of the photometric amount with respect to the target photometric amount. The adjustment range specifying process for calculating the target adjustment value range capable of specifying the target tristimulus value range is performed, and the adjustment information is obtained based on the target adjustment value range calculated by the adjustment range specifying process. An adjustment information generating device for generating. A light output device that arbitrarily changes color and brightness by changing the amount of light emitted from the red light source, the amount of light emitted from the green light source, and the amount of light emitted from the blue light source is used as an adjustment target. An adjustment information generation device including a processing unit that generates adjustment information for adjusting the amount of light emitted from each light source so that colors and arbitrary brightness are recognized,
The processing unit is a measurement process for measuring tristimulus values for each light output from each light source, a target chromaticity value corresponding to the arbitrary color, a target photometric amount corresponding to the arbitrary brightness, And a target adjustment capable of specifying a target tristimulus value corresponding to the target chromaticity value and the target photometric amount for each light to be output from each of the light sources based on each of the tristimulus values measured by the measurement processing. The adjustment value specifying process for calculating each value and the process for calculating the predicted chromaticity value and the predicted photometric amount corresponding to the virtual adjustment value in which the target adjustment value is changed within a predetermined adjustment value change range are the target. After randomly changing the adjustment value and executing the adjustment a plurality of times, the predicted chromaticity value within the range of the chromaticity value allowable error specified in advance for the target chromaticity value is calculated, and the target photometric amount is calculated in advance. A target adjustment value range in which the lowest value is set as the lower limit value and the highest value is set as the upper limit value among the virtual adjustment values for which the predicted photometric amount within the specified tolerance range of the photometric amount is calculated is specified. And an adjustment information generation device that generates the adjustment information based on each of the target adjustment value ranges specified by the adjustment range specification process. An adjustment work auxiliary device comprising the adjustment information generation device according to claim 1 or 2,
The processing unit determines whether or not the emission amount of light from each of the light sources is an emission amount corresponding to an adjustment value within the target adjustment value range specified based on the adjustment information. An adjustment work auxiliary device that executes a process and a first notification process that notifies the result of the first determination process in a identifiable manner. The processing unit determines whether the combined light of the lights from the respective light sources has a chromaticity value within the range of the chromaticity value allowable error for the target chromaticity value, and the photometric measurement for the target photometric amount. The second determination process for determining whether or not the photometric amount is within the range of the amount allowable error is performed, and the combined light is a color within the range of the allowable chromaticity value error with respect to the target chromaticity value. It is possible to specify that the adjustment of the amount of light emitted from each light source has been completed when it is determined that the photometric amount is within the range of the permissible error of the photometric amount with respect to the target photometric amount. The adjustment work auxiliary device according to claim 3, which executes a second notification process of notifying. The processing unit determines in the first determination process that the emission amount corresponds to the adjustment value within the target adjustment value range, and in the second determination process, the chromaticity with respect to the target chromaticity value. The first condition for determining that the chromaticity value is not within the range of the value allowable error, and it is determined in the first determination process that the emission amount corresponds to the adjustment value within the target adjustment value range. In addition, when at least one of the second conditions for determining that the photometric amount is not within the range of the photometric amount allowable error with respect to the target photometric amount in the second determination process is satisfied, it is specified immediately before. A target adjustment value range narrower than the target adjustment value range is specified, and the specified new target adjustment value range is used as the new adjustment information to execute the first determination process and the second determination process again. Item 4. The adjustment work auxiliary device according to item 4. An adjustment work auxiliary device comprising the adjustment information generation device according to claim 1 or 2,
The processing unit is configured such that the emission amount of light from each of the light sources is changed to exceed the emission amount corresponding to the center value of the target adjustment value range specified based on the adjustment information, and the target adjustment value is changed. An adjustment work auxiliary device that executes a third determination process of determining whether the emission amount corresponds to an adjustment value within a range, and a third notification process of specifying the result of the third determination process in a specifiable manner. An adjustment device comprising the adjustment information generation device according to claim 1 or 2, and being capable of adjusting the amount of light emitted from each of the light sources so that the arbitrary color and the arbitrary brightness can be recognized. And
The processing unit executes a determination process of determining whether the emission amount of light from each of the light sources is an emission amount corresponding to an adjustment value within the target adjustment value range specified based on the adjustment information. However, when the emission amount of the light from each light source is not the emission amount corresponding to the adjustment value within the target adjustment value range, the emission amount of the light from each light source is changed by a predetermined change amount. An adjustment device that executes the determination processing again after executing the changed emission amount adjustment processing. In the determination process executed after the emission amount adjustment process, the processing unit corresponds to an adjustment value in which the emission amount of light from each light source exceeds the target adjustment value range and is outside the target adjustment value range. When it is determined that the emission amount has been changed to, the change amount for changing the emission amount of the light from each light source at the time of the emission amount adjustment process to be executed next, the change amount at the time of the emission amount adjustment process performed immediately before. 8. The adjusting device according to claim 7, wherein the amount of light emitted from each light source is specified to be smaller than the changed amount by a predetermined amount.

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