KR20230094585A - Apparatus for evaluating quality of optical devices for augmented reality - Google Patents

Abstract

The present invention provides an apparatus for evaluating quality of an optical device for augmented reality which comprises: an image emission unit which emits virtual video image light corresponding to a virtual video for evaluating quality; a light splitter which splits the virtual video image light emitted from the image emission unit into an inside and an outside of an optical device for augmented reality and emits the same; an auxiliary optical unit which is placed outside the optical device for augmented reality and transmits the virtual video image light, split by the light splitter and emitted to the outside of the optical device for augmented reality, to the optical device for augmented reality; and a quality measurement unit which evaluates quality of the optical device for augmented reality based on at least any one of the virtual video image light emitted through the light splitter and the optical device for augmented reality, and the virtual video image light emitted through the light splitter, the auxiliary optical unit, and the optical device for augmented reality. According to the present invention, the apparatus can conveniently and efficiently evaluate the quality of an optical device for augmented reality.

Description

Apparatus for evaluating the quality of optical devices for augmented reality

The present invention relates to an apparatus for evaluating the quality of an optical device for augmented reality, and more particularly, obtains a virtual image and a see-through image by using virtual image light emitted from an image output unit for augmented reality It relates to a device capable of simply and efficiently evaluating the quality of an optical device.

As is well known, augmented reality (AR) refers to virtual image information augmented from visual information of the real world by overlapping a virtual image provided by a computer or the like with a real image of the real world. It refers to technology that is simultaneously provided to users.

An optical device for augmented reality for realizing such augmented reality is an optical synthesizer that delivers virtual image image light emitted from an image emitter to a user while providing real object image light from the real world to the user. combiner).

An optical device for augmented reality, that is, an optical synthesizer, has an optical element and an optical element for transmitting virtual video image light to the user's eyes using reflection, refraction, or diffraction, and the virtual video image light. and optical means for transmitting real object image light to the user's eyes.

1 shows a side view of an example of an optical device for augmented reality, as proposed by the present applicant.

Referring to FIG. 1 , an optical device 100 for augmented reality includes an optical means 10 and an optical element 20, and these act as a light synthesizer.

The optical means 10 functions to transmit real object image light, which is image light emitted from objects in the real world, through the pupil 40 while emitting virtual image image light transmitted from the optical element 20 into the pupil 40. It is a means of carrying out

The optical element 20 is buried inside the optical means 10, and may be formed of a transparent resin material such as a spectacle lens.

The optical element 20 is a means for transmitting the virtual video image light emitted from the image emitting unit 30 toward the pupil 40 of the user. In FIG. 1 , the optical element 20 is implemented as a reflective means and may be composed of a plurality of reflective modules 21 to 26 arranged in an array form.

The image emitting unit 30 is means for emitting virtual video image light, for example, a display unit for displaying a virtual image on a screen and emitting virtual image image light corresponding to the displayed virtual image and parallel image light emitted from the display unit. A collimator for collimating light may be provided.

In such an augmented reality optical device 100, the virtual image image light emitted from the image emitting unit 30 is totally reflected on the inner surface of the optical means 10 and then transmitted to the reflection modules 21 to 26, and reflected by a plurality of reflections. The modules 21 to 26 reflect incident virtual image light and transmit it to the pupil 40 . In addition, real object image light from a real object passes through the optical means 10 and is transmitted to the pupil 40, so that the user can provide an augmented reality service in which a virtual image is superimposed on a real object image.

Such an optical device 100 for augmented reality has a problem in that the manufacturing process is complicated and difficult because it requires precise arrangement in nano-millimeter units, and defective products are often generated in the manufacturing process. As a result, problems such as deterioration of resolution of virtual images, shape distortion, color distortion, non-uniform brightness distribution, and chromatic aberration occur. Therefore, it is necessary to accurately measure and evaluate the quality of the optical device 100 for augmented reality.

As a method for evaluating the quality of the optical device 100 for augmented reality, for a virtual image, an image signal corresponding to the virtual image light obtained through the optical device 100 for augmented reality and a virtual image displayed on the display unit The original image is compared, and for a real world image (see-through image), the reality image is placed in front of the optical device 100 for augmented reality and acquired through the optical device 100 for augmented reality. A method of comparing a video signal corresponding to light and a real video source may be used.

However, this method has a problem in that separate display units are required to inspect the virtual image and the real world image. A method of using one display unit can be considered, but this has a problem in that the position of the display unit must be moved every time the quality is measured. In addition, even if images of the same digital source are used, it is difficult to accurately compare the virtual image and the see-through image due to the variation of each display unit itself. For example, if there is a difference in color between the two display units, it is difficult to accurately compare the colors of the output of the virtual image and the see-through image.

The present invention is to solve the above problems, and obtains a virtual image and a see-through image by using a virtual image image light emitted from one image output unit, and based on them, the quality of an optical device for augmented reality can be easily improved. Its purpose is to provide a device that can evaluate and evaluate efficiently.

In order to solve the above problems, the present invention is a quality evaluation device for an optical device for augmented reality, comprising: an image emitting unit for emitting virtual image image light corresponding to a virtual image for quality measurement; a light splitter dividing the virtual video image light emitted from the image emitting unit into and out of the optical device for augmented reality; an auxiliary optical unit that is disposed outside the optical device for augmented reality and transfers the virtual video image light split to the outside of the optical device for augmented reality and emitted by the light splitter to the optical device for augmented reality; and augmentation based on at least one of virtual video image light emitted through the beam splitter and the optical device for augmented reality, and virtual video image light emitted through the beam splitter, the auxiliary optical unit, and the optical device for augmented reality. A quality evaluation device for an augmented reality optical device including a quality measuring unit for evaluating the quality of the optical device for reality is provided.

Here, the optical device for augmented reality includes an optical element that transmits incident virtual video image light to the user's eyes, and the optical element is disposed to transmit virtual video image light and real object image light to the user's eyes. An optical means, wherein the image emitter comprises: a display unit for displaying a virtual image for quality measurement and emitting virtual image image light corresponding to the displayed virtual image for quality measurement; It may include a collimator that collimates and emits light.

In addition, the optical device for augmented reality includes a built-in collimator for collimating incident virtual video image light into parallel light and transmitting the collimated light to an optical element, and an optical element for transmitting virtual video image light transmitted from the built-in collimator to the eyes of a user. and an optical means in which the optical element and the built-in collimator are disposed and transmits virtual image image light and real object image light to the user's eyes, wherein the image emitter displays a virtual image for quality measurement and measures the displayed quality. It may be composed of a display unit that emits virtual image image light corresponding to the virtual image.

In addition, the light splitter divides the virtual video image light emitted from the image emitting unit into the optical means and the auxiliary optical part, and outputs the light, and the auxiliary optical part is disposed outside the optical means and splits from the light splitter. It is possible to transfer the virtual video image light transmitted by the optical device to the optical means.

In addition, the quality measurement unit includes first virtual video image light, which is virtual video image light transmitted through the beam splitter and the optical element, and virtual video image light transmitted through the beam splitter, the auxiliary optical unit, and the optical means. a detector for detecting second virtual video image light; And evaluating the quality of the optical device for augmented reality based on at least one of a first image signal corresponding to the first virtual video image light transmitted from the detector and a second image signal corresponding to the second virtual video image light. An evaluation unit may be included.

In addition, the quality measurer measures first virtual video image light, which is virtual video image light transmitted through the light splitter, the built-in collimator, and the optical element, and transmitted through the beam splitter, the auxiliary optical unit, and the optical means. a detection unit for detecting second virtual video image light that is virtual video image light; And evaluating the quality of the optical device for augmented reality based on at least one of a first image signal corresponding to the first virtual video image light transmitted from the detector and a second image signal corresponding to the second virtual video image light. An evaluation unit may be included.

In addition, the auxiliary optical unit may include a first optical unit that optically converts and emits the virtual video image light divided by the light splitter and transmitted; and a second optical unit for transmitting the virtual video image light converted by the first optical unit to a detection unit through an optical means.

Further, the first optical unit converts the virtual video image light split by the light splitter and transmitted to the auxiliary optical unit to have the same optical properties as the virtual video image light split by the beam splitter and delivered to the optical unit and the optical element. can do.

In addition, the virtual video image light emitted from the second optical unit may be incident into the optical unit in a vertical direction parallel to the center of the detection unit.

In addition, a first shutter disposed between the light splitter and the optical means to pass or block first virtual image light emitted from the light splitter; and a second shutter disposed between the light splitter and the auxiliary optical unit to pass or block second virtual image light emitted from the light splitter.

In addition, when the first shutter operates to pass the first virtual video image light, the detection unit detects the first virtual video image light, and the second shutter operates to pass the second virtual video image light. In this case, the detector may detect the second virtual video image light.

Also, the evaluation unit may evaluate the quality of the optical device for augmented reality by comparing the first image signal and the second image signal.

The evaluation unit may evaluate the quality of the optical device for augmented reality by comparing the first image signal with a virtual image signal corresponding to a virtual image for quality measurement emitted from the image output unit.

The evaluation unit may evaluate the quality of the optical device for augmented reality by comparing the second image signal with a virtual image signal corresponding to a virtual image for quality measurement emitted from the image output unit.

In addition, the evaluation unit determines the quality by using at least one index of a modulation transfer function (MTF), brightness, resolution, image uniformity, a center position of an image, and a field of view (FOV). can be evaluated

In addition, an auxiliary optical unit for the detection unit disposed between the optical unit and the detection unit may be further included.

According to the present invention, a device capable of obtaining a virtual image and a see-through image using virtual image light emitted from one image output unit and evaluating the quality of an optical device for augmented reality simply and efficiently based on them is provided. can do.

1 shows a side view of an example of an optical device for augmented reality.
2 is a conceptual diagram showing the overall configuration of the quality evaluation device 200 of the optical device for augmented reality according to the present invention.
3 shows a quality evaluation device 300 according to an embodiment of the present invention.
4 is a diagram for explaining the configuration of the auxiliary optical unit 220 .
5 shows a quality evaluation device 400 according to another embodiment of the present invention.
6 is a diagram showing a quality evaluation device 500 according to another embodiment of the present invention.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a conceptual diagram showing the overall configuration of a quality evaluation device 200 (hereinafter simply referred to as “quality evaluation device 200”) of an optical device for augmented reality according to the present invention.

Referring to FIG. 2 , the quality evaluation device 200 according to the present invention includes an image output unit 30 , a light splitter 210 , an auxiliary optical unit 220 and a quality measurement unit 230 .

The image emitter 30 is a means for emitting virtual image image light corresponding to a virtual image for quality measurement, and the beam splitter 210 converts the virtual image image light emitted from the image emitter 30 into an optical device for augmented reality. It is a means for emitting by dividing into the inside and outside of (100).

The auxiliary optical unit 220 is disposed outside the optical device 100 for augmented reality, and the virtual image image light that is split and emitted to the outside of the optical device 100 for augmented reality by the light splitter 210 is converted into augmented reality. It performs a function of transmitting to the optical device 100 for use.

The quality measurement unit 230 is configured to measure the virtual video image light emitted through the optical splitter 210 and the optical device 100 for augmented reality, the optical splitter 210, the auxiliary optical unit 220, and the optical device for augmented reality ( 100) performs a function of evaluating the quality of the optical device 100 for augmented reality based on at least one of the virtual image light emitted through the optical device 100.

Hereinafter, a specific embodiment of the quality evaluation apparatus 200 according to the present invention will be described in detail with reference to FIG. 3 below.

3 shows a quality evaluation device 300 according to an embodiment of the present invention.

Referring to FIG. 3 , the quality evaluation device 300 of this embodiment includes an image output unit 30, a light splitter 210, an auxiliary optical unit 220, a detection unit 231 and an evaluation unit 232, , performs a function of evaluating the quality of the optical device 100 for augmented reality as exemplarily shown in FIG. 1 .

As described above, the optical device 100 for augmented reality in FIG. 3 includes an optical element 20 that transmits incident virtual video image light to the user's eyes, and the optical element 20 is disposed, and the virtual video image and an optical means (10) for transmitting light and real object image light to the pupil (40) of the user's eye.

The optical means 10 and the optical element 20 of the optical device 100 for augmented reality of FIG. 3 are the same as those shown in FIG. 1 . However, it should be noted that although the number of optical modules constituting the optical element 20 in FIG. 3 is different from that in FIG. 1 , this is only for convenience of description and has nothing to do with the configuration of the present invention.

The image emitting unit 30 of FIG. 3 is means for emitting virtual image image light corresponding to a virtual image for quality measurement, and is the same as the image emitting unit 30 in FIG. 1 , but a virtual image for quality measurement for quality measurement. The difference is that virtual video image light corresponding to an image is emitted and that it is spaced apart from the optical means 10 so that the light splitter 210 can be disposed between the optical means 10 as will be described later. there is.

The light splitter 210 splits the virtual video image light emitted from the image output unit 30 and emits it to the inside and outside of the optical device 100 for augmented reality, that is, the optical means 10 and the auxiliary optical unit 220. do.

As shown in FIG. 3, the light splitter 210 is disposed between the image output unit 30 and the optical means 10, and transmits a part of the virtual video image light emitted from the image output unit 30 to the optical means. (10), the remaining virtual video image light is reflected and emitted to the auxiliary optical unit 220.

Since such a beam splitter itself is well known in the prior art and is not a direct object of the present invention, a detailed description thereof will be omitted.

The auxiliary optical unit 220 is disposed outside the optical unit 10 and performs a function of transferring virtual video image light split from the light splitter 210 and transferred to the optical unit 10 .

4 is a diagram for explaining the configuration of the auxiliary optical unit 220 .

Referring to FIG. 4 , the auxiliary optical unit 220 may include a first optical unit 221 and a second optical unit 222 .

The first optical unit 221 optically converts and emits the virtual image image light divided and transmitted from the beam splitter 210, and the second optical unit 222 outputs the virtual image converted by the first optical unit 221. It performs a function of transmitting image light to the detection unit 231 through the optical means 10 .

Here, the first optical unit 221 divides the virtual video image light split by the beam splitter 210 and transmitted to the auxiliary optical unit 220 by the beam splitter 210, thereby providing the optical unit 10 and the optical element. It can perform a function of converting to optically have the same properties as the virtual video image light transmitted to (20).

For example, the first optical unit 221 may be composed of an optical element 20 composed of a plurality of optical modules disposed inside the optical unit 10 .

In addition, the first optical unit 221 may be configured by a combination of at least one of a reflection element, a refraction element, and a diffraction element that converts incident virtual image light by using reflection, refraction, or diffraction.

The second optical unit 222 transmits the virtual video image light converted by the first optical unit 221 into the optical means 10 parallel to the vertical direction from the center of the detection unit 231 into the detection unit 231. do.

The second optical unit 222 may also be configured by a combination of at least one of a reflective element, a refractive element, and a diffractive element.

5 shows a quality evaluation device 400 according to another embodiment of the present invention.

The quality evaluation device 400 of FIG. 5 is the same as the quality evaluation device 300 of FIG. 3, but a mirror that reflects incident light is used as the first optical unit 221, and the second optical unit 222 ), there is a difference in that a collimator is used. However, in this case, the virtual video image light entering the auxiliary optical unit 220 through the light splitter 210 must be virtual video image light that has not passed through the collimator 32 of the image output unit 30 .

Therefore, the collimator 32 in the image output unit 30 needs to configure the image output unit 30 as shown in FIG. 4 to collimate only the virtual video image light entering the optical means 10 . That is, as shown in FIG. 4 , the display unit 31 is disposed on the side of the light splitter 210 and the collimator 320 is disposed above the light splitter 310 .

Accordingly, among the virtual video image light emitted from the display unit 31, the virtual video image light passing through the light splitter 210 enters the auxiliary optical unit 220 and is reflected by the light splitter 210. The light is collimated by the collimator 32, passes through the light splitter 210 again, and then enters the optical means 10.

The auxiliary optical unit 220 of FIGS. 4 and 5 is exemplary, and other optical systems may be used. For example, three or more optical units may be used. In addition, it goes without saying that other configurations other than the configuration of the image ejection unit 30 shown in FIG. 5 can be used.

Next, the detection unit 231 and the evaluation unit 232 constituting the quality measurement unit 230 will be described.

The detection unit 231 includes first virtual video image light L1, which is the virtual video image light transmitted through the beam splitter 210 and the optical element 20, the beam splitter 210, the auxiliary optical unit 220, and optical means. It performs a function of detecting the second virtual video image light L2, which is the virtual video image light transmitted through (10).

The first virtual video image light L1 is split by the beam splitter 210 among the virtual video image light emitted from the image emitting unit 30 and enters the optical means 10, passes through the optical element 20 It means virtual video image light transmitted to the detection unit 231.

The first virtual video image light L1 passes through the light splitter 210, enters the optical unit 10, is totally reflected on the second surface 12 of the optical unit 10, and then enters the optical element 20. do. The optical element 20 reflects the incident first virtual video image light L1 and transmits it to the detection unit 231 through the first surface 11 of the optical means 10 .

The second virtual video image light L2 is split by the beam splitter 210 among the virtual video image light emitted from the image emitting unit 30 and enters the auxiliary optical unit 220, and then the optical means 10 It means virtual video image light transmitted to the detection unit 231 through

The second virtual image light L2 is reflected by the light splitter 210 and transmitted to the auxiliary optical unit 220, and passes through the optical unit 10 through the path shown in FIG. After passing through the second surface 12 and the first surface 11 in order, it is transferred to the detection unit 231.

Since the second virtual image image light L2 is transmitted through the outside of the optical device 100 for augmented reality among the virtual images emitted from the same image emitter 30, it acts as a see-through image. And, by comparing this with the first virtual video image light L1, it can be used as an index for evaluating the quality of the optical device 100 for augmented reality.

The detector 231 may be a camera module including an image sensor.

The detection unit 231 transfers a first image signal corresponding to the detected first virtual video image light L1 and a second image signal corresponding to the second virtual video image light L2 to the evaluation unit 232 .

Here, the detection unit 231 selectively detects at least one of the first virtual video image light L1 and the second virtual video image light L2 by the first shutter 250 and the second shutter 260. or both can be detected simultaneously.

The first shutter 250 is disposed between the light splitter 210 and the optical means 10 to pass or block the first virtual image light L1 emitted from the light splitter 210. .

In addition, the second shutter 260 is disposed between the light splitter 210 and the auxiliary optical unit 220 to pass or block the second virtual image light L2 emitted from the light splitter 210. Do it.

When the first shutter 250 operates to pass the first virtual video image light L1, the detector 231 may detect the first virtual video image light L1.

Also, when the second shutter 260 operates to pass the second virtual video image light L2, the detector 231 may detect the second virtual video image light L2.

The evaluation unit 232 may select at least one of a first image signal corresponding to the first virtual video image light L1 transmitted from the detection unit 231 and a second image signal corresponding to the second virtual video image light L2. Based on the function of evaluating the quality of the optical device 100 for augmented reality. The evaluation unit 232 may be implemented as, for example, computer software.

The evaluation unit 232 may evaluate the quality of the optical device 100 for augmented reality by comparing the first video signal and the second video signal.

In addition, the evaluation unit 232 may evaluate the quality of the optical device 100 for augmented reality by comparing the first image signal with a virtual image signal corresponding to the virtual image for quality measurement output from the image output unit 30. .

In addition, the evaluation unit 232 may evaluate the quality of the optical device 100 for augmented reality by comparing the second image signal with a virtual image signal corresponding to the virtual image for quality measurement output from the image output unit 30. .

At this time, indicators that can be used for quality evaluation include, for example, various indicators such as MTF (Modulation Transfer Function), brightness, resolution, image uniformity, image center position, field of view (FOV), and the like. can be used. In addition, it is possible to determine whether or not a ghost image has occurred.

At this time, a first image corresponding to the center position of the display unit 31 and the first image signal and a second image corresponding to the second image signal are used by using a crosshair pattern image as an original image. center position can be checked. In addition, the MTF and resolution can be evaluated using the EIAJ chart.

In addition, by using a monochromatic surface light source (white, blue, green, red) as the original image, the luminance of the first image and the second image according to white or RGB may be evaluated for each in-plane position.

Since these quality evaluation indexes and evaluation methods themselves are known in the prior art and are not a direct object of the present invention, a detailed description thereof will be omitted.

Meanwhile, the quality evaluation devices 300 and 400 may further include an auxiliary optical unit 270 for the detection unit as needed.

The auxiliary optical unit 270 for the detection unit is disposed between the optical means 10 and the detection unit 231 to refract, reflect, or refract the first virtual video image light and the second virtual video image light transmitted to the detection unit 231. It is an optical system that enables the detector 231 to obtain desired virtual video image light by collimating it, and this may be omitted.

6 is a diagram showing a quality evaluation device 500 according to another embodiment of the present invention.

Compared with the quality evaluation device 300 of FIG. 3 , the quality evaluation device 500 of FIG. 6 converts virtual video image light incident into the optical means 10 of the optical device 100 for augmented reality into parallel light. It differs in that it includes a built-in collimator 50 that collimates and transfers it to the optical element 20. Therefore, since there is no need to use the collimator 32 in the image output unit 30, the image output unit 30 is composed of only the display unit 31.

In addition, the first virtual video image light L1 emitted from the image emitting unit 30 and incident into the optical means 10 is totally reflected on the second surface 12 of the optical means 10, and then the built-in collimator 50 ), and the first virtual video image light L1 converted to collimated collimated light by the built-in collimator 50 is totally reflected again on the second surface 12 of the optical means 10, and then the optical element 20 There is also a difference in that the light path inside the optical means 10 is different in that it is transmitted to the detection unit 231 through the.

Other components, that is, the beam splitter 210, the auxiliary optical unit 220, the detection unit 231, and the evaluation unit 232 are the same as those described with reference to FIGS. 3 to 5, and thus detailed descriptions thereof are omitted.

Meanwhile, in FIG. 6 , the optical element 20 is disposed along a vertical line, but this is exemplary and has nothing to do with the configuration and operation of the quality evaluation device 500 . In addition, the number of optical elements 20 is also different from the quality evaluation apparatuses 300 and 400 of FIGS. 3 and 5 , but this is also completely unrelated to the configuration and operation of the quality evaluation apparatus 500 .

As such, the quality evaluation devices 300 to 500 are not related to the configuration of the optical device 100 for augmented reality, and are composed of the optical means 10 and the optical element 20. It has the advantage that it can be applied to all types of ramen.

In the above, the present invention has been described with reference to preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and various other modifications and variations are possible.

100...Optics for Augmented Reality
10...optical means
20 ... optical element
30 ... image output unit
40...pupil
50... built-in collimator
200, 300, 400, 500... quality measurement device for optical devices for augmented reality
210 ... optical splitter
220 ... auxiliary optics
230 ... detection unit
240 ... evaluation department
250 ... 1st shutter
260 ... second shutter
270 ... auxiliary optics for detection

Claims (16)

As a quality evaluation device for an optical device for augmented reality,
an image emitting unit for emitting virtual image image light corresponding to a virtual image for quality measurement;
a light splitter dividing the virtual video image light emitted from the image emitting unit into and out of the optical device for augmented reality;
an auxiliary optical unit that is disposed outside the optical device for augmented reality and transfers the virtual video image light split to the outside of the optical device for augmented reality and emitted by the light splitter to the optical device for augmented reality; and
Augmented reality based on at least one of virtual video image light exiting through the optical splitter and the optical device for augmented reality, and virtual video image light exiting through the optical splitter, the auxiliary optical unit, and the optical device for augmented reality. Quality measurement unit that evaluates the quality of optical devices for
Quality evaluation device of an optical device for augmented reality comprising a. The method of claim 1,
The optical device for augmented reality includes an optical element that transmits incident virtual video image light to the user's eyes, and an optical means in which the optical element is disposed to transmit virtual video image light and real object image light to the user's eyes. include,
The image output unit includes a display unit that displays a virtual image for quality measurement and emits virtual image light corresponding to the displayed virtual image for quality measurement, and a collimator that collimates and emits the image light emitted from the display unit as parallel light. Quality evaluation device of an optical device for augmented reality, characterized in that it comprises a. The method of claim 1,
The optical device for augmented reality includes a built-in collimator for collimating incident virtual video image light into parallel light and transmitting the collimated light to an optical element, and an optical element for transmitting virtual video image light transmitted from the built-in collimator to a user's eye; The optical element and the built-in collimator are disposed and include optical means for transmitting virtual video image light and real object image light to the user's eyes;
The quality evaluation device of an optical device for augmented reality, characterized in that the image output unit is composed of a display unit that displays a virtual image for quality measurement and emits virtual image image light corresponding to the displayed virtual image for quality measurement. According to claim 2 or claim 3,
The light splitter divides the virtual video image light emitted from the image emitting unit into the optical unit and the auxiliary optical unit and emits the light;
The auxiliary optical unit is disposed outside the optical unit and transmits the virtual video image light split and transmitted from the light splitter to the optical unit. The method of claim 2,
The quality measuring unit,
First virtual video image light, which is virtual video image light transmitted through the light splitter and the optical element, and second virtual video image light, which is virtual video image light transmitted through the beam splitter, the auxiliary optical unit, and the optical means, a detection unit that detects; and
Evaluation of evaluating the quality of the optical device for augmented reality based on at least one of a first image signal corresponding to the first virtual video image light transmitted from the detection unit and a second image signal corresponding to the second virtual video image light wealth
Quality evaluation device of an optical device for augmented reality, characterized in that it comprises a. The method of claim 3,
The quality measuring unit,
First virtual video image light, which is virtual video image light transmitted through the beam splitter, the built-in collimator, and the optical element, and second virtual video image light, which is virtual video image light transmitted through the beam splitter, the auxiliary optical unit, and the optical means. a detection unit that detects video image light; and
Evaluation of evaluating the quality of the optical device for augmented reality based on at least one of a first image signal corresponding to the first virtual video image light transmitted from the detection unit and a second image signal corresponding to the second virtual video image light wealth
Quality evaluation device of an optical device for augmented reality, characterized in that it comprises a. According to claim 2 or claim 3,
The auxiliary optical unit,
a first optical unit that optically converts and emits the virtual video image light divided and transmitted from the light splitter; and
and a second optical unit for transmitting the virtual video image light converted by the first optical unit to a detection unit through an optical means. The method of claim 7,
The first optical unit converts the virtual video image light split by the beam splitter and transmitted to the auxiliary optical unit to have the same optical properties as the virtual video image light split by the beam splitter and transmitted to optical means and optical elements. A quality evaluation device for an optical device for augmented reality. The method of claim 7,
The quality evaluation device of the optical device for augmented reality, characterized in that the virtual video image light emitted from the second optical unit is incident into the optical unit parallel to a vertical direction from the center of the detection unit. According to claim 2 or claim 3,
a first shutter disposed between the light splitter and the optical means to pass or block first virtual image light emitted from the light splitter; and
A second shutter disposed between the light splitter and the auxiliary optical unit to pass or block second virtual image light emitted from the light splitter.
Quality evaluation device of an optical device for augmented reality, characterized in that it comprises a. The method of claim 10,
When the first shutter is operated to pass the first virtual video image light, the detection unit detects the first virtual video image light;
and the detecting unit detects the second virtual video image light when the second shutter operates to pass the second virtual video image light. According to claim 5 or claim 6,
The evaluation unit evaluates the quality of the optical device for augmented reality by comparing the first image signal and the second image signal. According to claim 5 or claim 6,
The evaluation unit evaluates the quality of the optical device for augmented reality by comparing the first image signal with a virtual image signal corresponding to a virtual image for quality measurement output from the image output unit. quality evaluation device. According to claim 5 or claim 6,
The evaluation unit evaluates the quality of the optical device for augmented reality by comparing the second image signal with a virtual image signal corresponding to a virtual image for quality measurement output from the image output unit. quality evaluation device. According to claim 5 or claim 6,
The evaluation unit evaluates the quality using at least one index of MTF (Modulation Transfer Function), brightness, resolution, image uniformity, center position and field of view (FOV) of the image Quality evaluation device of an optical device for augmented reality, characterized in that. According to claim 5 or claim 6,
The quality evaluation device of an optical device for augmented reality, further comprising an auxiliary optical unit for the detection unit disposed between the optical unit and the detection unit.

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