JP2006039271A - Image display apparatus, reflection mirror thereof and image display method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image display apparatus, a reflection mirror thereof and an image display method which enable image light to be made appropriately incident on the pupil of an observer even when the position of the observer's eye is changed. <P>SOLUTION: The image light emitted from a light source unit Ba corresponding to a two-dimensional image is made incident on the reflection mirror 20 as scanning light while being two-dimensionally scanned by an optical scanning unit C. The reflection mirror 20 reflects the incident scanning light from its reflection surface toward the pupil Ia of the observer's eye I. In this case, a control unit Bb controls the reflection mirror 20 so as to partially and successively deform the reflection surface into such a shape that the reflected scanning light is made incident on the pupil according to the position of the incident on the reflection surface of the scanning light and the position of the pupil. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an image display device, a reflecting mirror thereof, and an image display method.

  Conventionally, in this type of image display apparatus, there is a glasses-type display apparatus disclosed in Patent Document 1 below. This display device includes a projection unit and a reflection mirror provided on a vine of a spectacle frame, and an integrated mirror provided on a lens of the spectacle.

Here, the image light from the projection unit reflected by the reflecting mirror is reflected by the integrated mirror and enters the eye. Further, the projection unit enters the reflection mirror while scanning the image light in the horizontal direction, and the reflection mirror reflects the incident image light while scanning in the vertical direction and enters the integrated mirror. Therefore, the image light is imaged on the retina of the eye along with the scanning and displayed as a two-dimensional image.
JP 2000-1111829 A

  By the way, in the display device as described above, since the shape of the reflection surface of the integrated mirror is always maintained constant, even if image light is incident on the reflection surface of the integrated mirror, the reflection direction is It is uniquely fixed for each image light incident portion of the integrated mirror.

  However, if the position of the eyes of the observer wearing the glasses is different for each observer, the reflected image light of the integrated mirror does not properly enter the pupil of the eye depending on the observer, and the image This causes a problem that an image by light cannot be correctly formed on the retina.

  Therefore, in order to cope with such a situation, the present invention provides an image display apparatus and its reflecting mirror that appropriately causes image light to enter the pupil of the observer's eye even if the position of the observer's eye changes. An object of the present invention is to provide an image display method.

In solving the above-described problems, an image display device according to the present invention, according to claim 1,
Image light emitting means (Ba) for emitting image light corresponding to a two-dimensional image;
Reflecting means (20, 20A, 20B, Bb) having a reflecting surface (25a) for reflecting the image light emitted from the image light emitting means toward the pupil (Ia) of the eye (I) of the observer )
The two-dimensional image is displayed by the image light reflected by the reflecting surface entering the pupil and forming an image on the retina of the eye.

  In the image display device, the reflecting means is a deformable member (22, 22a) that deforms the reflecting surface so that the image light is incident on the pupil according to the position of the pupil and the incident position of the image light on the reflecting surface. , 23, 24, 24a).

  As described above, the reflecting surface is deformed by the deforming member so that the reflected image light is incident on the pupil according to the position of the pupil and the incident position of the image light on the reflecting surface.

  Therefore, even if the position of the observer's eye changes depending on the observer, the image light is reflected by the reflecting surface that deforms as described above and is appropriately incident on the pupil of the eye. As a result, the two-dimensional image can be appropriately imaged and displayed on the retina of the observer's eye.

According to a second aspect of the present invention, in the image display device according to the first aspect,
Pupil position detection means (150) for detecting the position of the pupil;
Control means (160b, 170, 176, 178) for controlling the deformation of the deformation member according to the incident position of the image light on the reflecting surface and the pupil position detected by the pupil position detection means,
The reflection means is
A reflective layer (25) having the reflective surface;
The deformable member is provided on the opposite side of the reflective surface with respect to the reflective layer.

  Thus, the deformable member is provided on the side opposite to the reflective surface with respect to the reflective layer. Therefore, the deformation member is deformed and controlled by the control means according to the incident position of the image light on the reflection surface and the detection pupil position, and deforms the reflection layer to the reflection surface side. Thereby, the effect of the invention of claim 1 can be further improved.

According to a third aspect of the present invention, in the image display device according to the second aspect,
The reflecting means includes a substrate (21) provided on the side opposite to the reflecting layer with respect to the deformable member,
The deformable member includes a plate-like piezoelectric body (23) that is piezoelectrically deformed with respect to the substrate, and both electrodes (22, 22a,...) Interposed between the substrate and the reflective layer so as to face each other with the piezoelectric body interposed therebetween. 24, 24a), and one of the electrodes is formed into a shape that deforms the reflective layer in accordance with the piezoelectric deformation of the piezoelectric body,
The control means
The image light reflected on the reflecting surface is reflected by the reflecting surface according to the pupil position detected by the voltage generating means (160b) and the pupil position detecting means and the incident position of each light beam constituting the image light on the reflecting layer. Voltage adjusting means (170, 176, 178) for adjusting the voltage generated from the voltage generating means so as to be deformed into a shape to be incident on the pupil,
The control is performed by applying the voltage adjusted by the voltage adjusting means to the piezoelectric body via both electrodes and piezoelectrically deforming the piezoelectric body.

  Thus, the voltage from the voltage generating means is adjusted according to the detection pupil position and the incident position of the image light on the reflecting surface so that the reflective layer is deformed into a shape that causes the reflected image light to enter the pupil. Is done. Then, the piezoelectric body is piezoelectrically deformed with the voltage adjusted as described above with reference to the substrate, whereby the control means described above is controlled. As a result, the operation and effect of the invention according to claim 2 can be achieved more reliably with such control.

According to a fourth aspect of the present invention, in the image display device according to the third aspect,
Voltage adjustment means
Standard voltage setting means (170) for setting a standard voltage having the reflective surface as a standard shape in the voltage generation means;
Based on the deviation between the pupil position detected by the pupil position detection means and the standard position of the pupil where the image light reflected by the reflection surface in the standard shape is incident, the reflection surface is changed from the standard shape to the image. Standard voltage correction means (174, 175, 176) for correcting the standard voltage so as to be deformed into a target shape for allowing light to enter the pupil is provided.

  As described above, when the detection pupil position is deviated from the standard position of the pupil, the reflection layer is located between the detection pupil position and the standard position of the pupil according to the incident position of the image light on the reflection layer. Based on the deviation, the standard voltage is corrected so as to be deformed from the standard shape to the target shape. Subsequently, the standard voltage corrected in this way is applied to the piezoelectric body via both electrodes, and the piezoelectric body is piezoelectrically deformed, whereby the reflective layer is controlled from the standard shape to the target shape. As a result, the function and effect of the invention of claim 3 can be further improved.

According to a fifth aspect of the present invention, in the image display device according to the third or fourth aspect,
The image light emitting means combines a plurality of light sources (70a, 70b, 70c) that emit light beams having different wavelengths based on the image light, and a combining means that combines the plurality of light beams emitted from the plurality of light sources. 90a, 90b, 90c) and scanning means (C) for two-dimensionally scanning the light beam synthesized by the synthesis means,
The reflection layer is configured with a dichroic mirror that reflects a light beam having a wavelength emitted from a plurality of light sources and transmits a light beam having another wavelength.
Both electrodes are made of a conductive material that is highly transparent to visible light,
The piezoelectric body is composed of a piezoelectric body that is highly transparent to visible light,
The substrate is formed of a substrate having high light-transmitting property with respect to visible light.

  Thus, the same effect as that of the invention according to claim 3 or 4 can be achieved while viewing the scenery in front of the reflection layer. Further, as described above, the reflection layer is composed of a dichroic mirror that reflects the light beams having wavelengths emitted from a plurality of light sources and transmits the light beams having other wavelengths. The two-dimensional image formed on the retina of the eye can be satisfactorily displayed along with the achievement of the effect.

According to a sixth aspect of the present invention, in the image display device according to any one of the third to fifth aspects,
One of both electrodes is composed of a plurality of spot electrodes (22, 22a),
The other electrode is opposed to the plurality of spot electrodes via the piezoelectric body, and is configured with a common electrode common to the plurality of spot electrodes.
The control means is characterized in that the piezoelectric deformation of each electrode corresponding portion with respect to each spot electrode of the piezoelectric body is controlled by applying the voltage to a plurality of spot electrodes.

  According to this, the piezoelectric deformation of each electrode corresponding part with respect to each spot electrode of a piezoelectric material is controlled by applying the voltage to a plurality of spot electrodes. Therefore, the piezoelectric deformation of each electrode corresponding portion with respect to each spot electrode of the piezoelectric body is further appropriately performed. As a result, the shape control of the reflective layer described above is further improved, and the operational effects of the invention according to any one of claims 3 to 5 can be further improved.

According to a seventh aspect of the present invention, in the image display device according to any one of the third to fifth aspects,
The image light emitting means includes scanning means (C) for scanning the image light in a two-dimensional manner,
One of the electrodes is composed of a plurality of linear electrodes (22a) arranged in parallel with each other along the piezoelectric body,
The other electrode has a plurality of linear electrodes (24a) arranged so as to face the plurality of linear electrodes via the piezoelectric body and to be positioned so as to cross the plurality of linear electrodes. Configured,
The control means controls the piezoelectric deformation of each electrode corresponding portion with respect to each intersection of the plurality of linear electrodes of the piezoelectric body by applying the voltage to the piezoelectric body via the plurality of linear electrodes. And

  As a result, the effect substantially similar to that of the invention according to any one of claims 3 to 5 can be achieved, and by increasing the number of linear electrodes, the reflection surface can be more precisely defined. The shape can be changed. Here, as described above, since the image light is scanning light scanned by the scanning means, the piezoelectric deformation of each electrode corresponding portion may be piezoelectric deformation of the electrode corresponding portion located in the vicinity of the scanned light to be scanned. .

Moreover, according to the description of Claim 8, this invention is the image display apparatus as described in any one of Claims 2-7.
With timekeeping means (140),
The pupil position detecting means is characterized in that the position of the pupil is detected every time a predetermined time is measured by the time measuring means.

  Thus, every time the time measuring means finishes measuring the predetermined time, the pupil position is detected every time the predetermined time is measured by the time measuring means. Therefore, the shape of the reflecting surface is appropriately and automatically controlled every time the predetermined time has elapsed, and as a result, the operational effects of the invention according to any one of claims 2 to 7 are further improved. obtain.

According to a ninth aspect of the present invention, in the image display device according to any one of the second to seventh aspects,
Comprising operating means (130);
The pupil position detecting means detects the position of the pupil based on the operation of the operating means.

  As described above, the position of the pupil is detected for each operation of the operation means, so that the shape of the reflecting surface is appropriately and automatically controlled. As a result, as described in any one of claims 2 to 7 The effects of the invention can be further improved.

According to a tenth aspect of the present invention, in the image display device according to any one of the second to ninth aspects,
The image light emitting means is configured to form and emit the image light for each frame of the video signal based on a video signal composed of a series of frames corresponding to the two-dimensional image.
The pupil position detection means detects the position of the pupil in synchronization with each frame of the video signal.

  In this way, the position of the pupil is detected in synchronization with each frame of the video signal, so that the shape of the reflecting surface is appropriately and automatically controlled for each frame of the video signal. As a result, the function and effect of the invention according to any one of claims 2 to 9 can be further improved.

Moreover, according to the description of Claim 11, the image display apparatus according to the present invention is the image display apparatus according to Claim 1,
The reflection means is
The reflection surface is formed by a part of a spheroid having a first focal point (F2) for disposing the pupil of the eye and a second focal point (F1) for disposing the image light emitting means,
The reflecting surface is deformed by a deformable member so that the image light is incident on the pupil in accordance with a shift of the position of the pupil from the first focus.

  In this way, by configuring the reflecting surface with a part of the spheroid, even if the pupil position of the observer's eye is deviated from the focus on the pupil side, the deforming member is used to change the pupil position from the first focus. The reflection surface is deformed so that the image light is incident on the pupil in accordance with the shift of the distance.

  Thereby, even if the position of the observer's eye changes depending on the observer, the image light is reflected by the reflecting surface deforming as described above and is appropriately incident on the pupil of the eye. As a result, the two-dimensional image can be appropriately imaged and displayed on the retina of the observer's eye.

  A part of the spheroid is obtained by rotating the ellipse having the first and second focal points around its rotation axis.

  According to a twelfth aspect of the present invention, in the image display device according to the seventh aspect, the reflecting means is formed in a Fresnel surface shape on the reflecting surface.

  Also by this, the same effect as that of the invention of the eleventh aspect can be achieved.

According to a thirteenth aspect of the present invention, in the image display device according to the eleventh or twelfth aspect,
The deformable member includes a plate-shaped piezoelectric body (23) that is piezoelectrically deformed, and both electrodes (22, 24) that are interposed so as to face each other with the piezoelectric body interposed therebetween.
Of the two electrodes, the electrode located on the opposite side of the reflecting surface with respect to the piezoelectric body is composed of a plurality of spot electrodes (22).

  As a result, if the deforming member deforms the reflecting surface by applying a voltage to the plurality of spot electrodes to deform the piezoelectric body, the same effect as that of the invention according to claim 11 or 12 is achieved. obtain. Here, the larger the number of spot electrodes, the more accurately the shape as a part of the spheroid of the reflecting surface can be formed.

Moreover, according to the description of claim 14, the present invention provides
In a reflecting mirror for an image display device that reflects two-dimensionally scanned image light toward a pupil of an observer's eye,
A reflective layer (25) provided with a reflective surface (25a) for reflecting the image light toward the pupil;
It is provided with a deformation member (22, 22a, 23, 24, 24a) provided on the opposite side to the image light incident side with respect to the reflection layer and deforming the reflection layer.

  Accordingly, it is possible to provide a reflecting mirror suitable for use in an image display device that can achieve the function and effect of the first aspect of the invention.

In the image display method according to the present invention, according to the description of claim 15,
Emit image light corresponding to a two-dimensional image,
The image light is reflected by the reflecting surface (25a) toward the pupil (Ia) of the observer's eye (I),
The reflected image light forms an image on the retina of the eye and is displayed as the two-dimensional image.

In the image display method,
The reflection direction of the image light is controlled so that the image light reflected according to the position of the pupil and the incident position of the image light on the reflection surface is incident on the pupil.

  Thereby, even if the position of an observer's eye changes with observers, the said reflected image light injects into the pupil of an eye appropriately. As a result, the two-dimensional image can be appropriately imaged and displayed on the retina of the eye.

  In addition, the code | symbol in the bracket | parenthesis of each said means shows the correspondence with the specific means as described in embodiment mentioned later.

Hereinafter, each embodiment of the present invention will be described with reference to the drawings.
(First embodiment)
FIG. 1 shows a first embodiment of a glasses-type image display device according to the present invention. The image display apparatus is configured by image forming glasses A, left and right side apparatus main bodies B, and left and right side optical scanning units C.

  As shown in FIG. 1, the glasses A include a frame 10 and left and right reflecting mirrors 20. The frame 10 has a shape similar to that of a normal eyeglass frame worn on the face of the observer, and this frame 10 is configured by a frame 10a and left and right temples 10b. . Here, the frame 10 a includes left and right both-side annular portions 11 for fitting the left and right both-side reflecting mirrors 20. Further, the left and right side cranes 10b extend longitudinally from the left and right sides of the frame 10a, and the cranes 10b can be folded toward the back of the frame 10a.

  Each of the left and right reflecting mirrors 20 is a reflecting optical element that causes image light scanned two-dimensionally by the left and right both-side light scanning units C to enter the left and right eyes of the observer, as will be described later. The right and left side reflecting mirrors 20 are formed with the same outer shape as a lens of a spectacle worn on a human face, and each of these reflecting mirrors 20 has a frame 10a as shown in FIGS. Each annular part 11 is fitted in each. Thereby, when the frame 10 is mounted on the face of the observer in the same manner as a normal eyeglass frame, the left and right reflecting mirrors 20 are positioned so as to face the left and right eyes of the observer's face. Supported by the frame 10.

  In the first embodiment, both the left and right reflecting mirrors 20 have the same configuration, and therefore the configuration of the left reflecting mirror 20 will be described in detail by taking the left reflecting mirror 20 as an example. As can be seen from FIGS. 3 to 5, the left-side reflecting mirror 20 includes a substrate 21 made of a transparent electrical insulating material having high translucency with respect to visible light such as glass, a plurality of disk-like one-side electrodes 22, a plate A piezoelectric body 23, a plate-like other electrode 24, and a reflective layer 25 are included.

  The plurality of one-side electrodes 22 are made of a transparent conductive material (for example, ITO) having high translucency with respect to visible light. Each one-side electrode 22 is arranged in a matrix on the surface of the substrate 21. Is provided. In the first embodiment, since the one-side electrode 22 is formed to have a small outer diameter of about 1 (mm), the one-side electrode 22 is also referred to as a spot electrode 22 hereinafter.

  The piezoelectric body 23 is formed using a transparent piezoelectric material (for example, PLZT) having a high translucency with respect to visible light. The piezoelectric body 23 is formed on the surface of the substrate 21 via a plurality of spot electrodes 22. Are stacked. This means that the plurality of spot electrodes 22 are sandwiched between the substrate 21 and the piezoelectric body 23 in the plate thickness direction. The piezoelectric body 23 exerts a piezoelectric action upon application of a voltage.

  The other side electrode 24 is formed of a transparent conductive material (for example, ITO) having high translucency with respect to visible light. The other side electrode 24 is formed on the plurality of one side electrodes 22 via the piezoelectric body 23. It is laminated on the surface of the piezoelectric body 23 so as to face each other. Thereby, in applying a voltage to the piezoelectric body 23, the other-side electrode 24 serves as a common electrode for the plurality of one-side electrodes 22. Therefore, hereinafter, in the first embodiment, the other side electrode 24 is also referred to as a common electrode 24.

  The reflective layer 25 is formed by a dichroic mirror, and the reflective layer 25 is provided on the surface of the common electrode 24. In this way, the reflection layer is formed of a dichroic mirror, thereby reflecting light of a specific wavelength out of the scanning light and guiding it to the pupil of the left eye, and transmitting other light, that is, light from the outside world. Fulfill. This means that the reflective layer realizes so-called see-through. The surface 25a of the reflective layer 25 serves as a reflective surface, that is, a reflective surface of the left reflecting mirror 20. Hereinafter, the surface 25a of the reflective layer 25 is also referred to as a reflective surface 25a.

  In the left reflecting mirror 20 configured as described above, the portions of the piezoelectric body 23 corresponding to the vicinity of the end faces in the plate thickness direction of the plurality of spot electrodes 22 are respectively shown in FIG. 3 and FIG. In this case, the plate thickness of each piezoelectric portion 23a changes based on each applied voltage to each piezoelectric portion 23a via each spot electrode 22 and common electrode 24 corresponding to each piezoelectric portion 23a.

  Here, the substrate 21 on which the piezoelectric body 23 is laminated via the plurality of spot electrodes 22 is made of a rigid glass. For this reason, the plate thickness of each piezoelectric portion 23a changes to the common electrode 24 side in proportion to the value of each applied voltage with reference to the back surface (surface on the spot electrode 22 side) of each piezoelectric portion 23a. In other words, each piezoelectric portion 23a displaces the surface (the surface on the common electrode 24 side) toward the common electrode 24 in proportion to the value of each applied voltage.

  Further, as shown in FIG. 4, the reflection surface 25 a of the reflection layer 25 is partitioned in a lattice pattern by a plurality of two-dot chain lines L, and these partition regions are formed on end faces in the plate thickness direction of the plurality of spot electrodes 22. Each corresponding square area 25b is defined. Then, assuming that the point where each two-dot chain line L intersects in a cross shape is P (hereinafter also referred to as an intersection P), for each intersection P, four square regions 25b centering on the intersection P are shown in FIG. As illustrated in the figure, they are adjacent to each other on the reflecting surface 25a.

  Further, as described above, for each of the four adjacent square areas 25b, an area formed between the four square areas 25b with the intersection P as the center (hereinafter referred to as area Q) is divided into the four square areas 25b. The corresponding piezoelectric parts 23a are inclined together with the corresponding parts of the common electrode 24 due to the difference in thickness of each of the four piezoelectric parts 23a. In FIG. 4, the region Q is indicated by a circle for convenience as described above, and is not actually a circle but is formed around the intersection P between the four square regions 25b. It just means an area.

  In the first embodiment, each region Q in which scanning light (described later) is incident is also referred to as each pixel Q among the plurality of regions Q on the reflecting surface 25a. Then, using the difference in inclination of each pixel Q, the reflection direction by each pixel Q with respect to the incident scanning light to each pixel Q is controlled as described later.

  As shown in FIG. 1, the left and right side device main bodies B are separated from the glasses A, and the left device main body B is connected to the left optical scanning unit C by optical fibers and wiring. On the other hand, the right apparatus body B is connected to the right scanning unit C by an optical fiber and wiring. The left and right apparatus main bodies B are held at appropriate positions on the body of the observer wearing the glasses A.

  Hereinafter, since the left and right both-side device bodies B have the same configuration, the configuration will be described by taking the left-side device body B as an example.

  As shown in FIG. 2, the left device body B includes a left light source unit Ba and a left control unit Bb. The left light source unit Ba includes an optical sensor 30a and a beam detection signal processing circuit 30b. The optical sensor 30a detects a beam of light reflected from a reflection plate 201 of a horizontal scanning mechanism 220 described later to detect a beam. Generate a signal. The beam detection signal processing circuit 30 b performs signal processing on the beam detection signal from the optical sensor 30 a to generate a signal processing signal, and outputs the signal processing signal to the video signal processing circuit 40. Note that the optical sensor 30 a is provided in the vicinity of the horizontal scanning mechanism 200.

  The left light source unit Ba has a video signal processing circuit 40. The video signal processing circuit 40 has a signal processing signal from the beam detection signal processing circuit 30b, a clock count output from the clock counter 40a, and an external signal. On the basis of the video signal corresponding to the two-dimensional image from the image, the blue color for forming the one frame for each horizontal line of one frame corresponding to the plurality of horizontal lines constituting each frame of the two-dimensional image, The output timing of each of the green and red drive signals is determined. The video signal processing circuit 40 outputs the blue, green and red drive signals to the blue laser drive circuit 50a (hereinafter also referred to as B laser drive circuit 50a) and the green laser drive circuit 50b (for each output timing). Hereinafter, the light is output to the G laser driving circuit 50b) and the red laser driving circuit 50c (hereinafter also referred to as the R laser driving circuit 50c).

  The clock counter 40a is provided in the video signal processing circuit 40. The clock counter 40a is sequentially generated from a clock oscillator (not shown) provided in the video signal processing circuit 40 in accordance with its operation. Count the clocks to be used. The two-dimensional image is composed of a series of frames, and the plurality of horizontal lines correspond to each frame.

  The video signal processing circuit 40 generates a horizontal synchronization signal at each output timing and outputs the horizontal synchronization signal to the horizontal scanning drive circuit 60a. The video signal processing circuit 40 also generates a vertical synchronization signal for each first horizontal line among the plurality of horizontal lines in each frame. Is output to the vertical scanning drive circuit 60b. The video signal processing circuit 40 generates a video synchronization signal for each frame corresponding to the two-dimensional image of the video signal and outputs the video synchronization signal to the left control unit Bb.

  The B laser drive circuit 50a generates a modulation drive signal for modulating the intensity of blue laser light emitted from the blue laser 70a (hereinafter also referred to as B laser 70a) based on the blue drive signal from the video signal processing circuit 40. Generated and output to the B laser 70a. The G laser drive circuit 50b generates a modulation drive signal for modulating the intensity of green laser light emitted from the green laser 70b (hereinafter also referred to as G laser 70b) based on the green drive signal from the video signal processing circuit 40. Generated and output to the G laser 70b. The R laser drive circuit 50c is a modulation drive for modulating the intensity of red laser light emitted from the red laser 70c (hereinafter also referred to as R laser 70c) based on the red drive signal from the video signal processing circuit 40. A signal is generated and output to the R laser 70c.

  The horizontal scanning drive circuit 60 a drives the horizontal scanning mechanism 200 in the horizontal scanning based on each horizontal synchronization signal from the video signal processing circuit 40. The vertical scanning drive circuit 60b drives the vertical scanning mechanism 220 to perform vertical scanning based on each vertical synchronization signal from the video signal processing circuit 40.

  The B laser 70a intensity-modulates the blue laser light based on the modulation drive signal from the B laser drive circuit 50a, and emits the blue laser light to the collimator lens 80a as blue laser intensity modulated light. The G laser 70b modulates the intensity of the green laser light based on the modulation drive signal from the G laser drive circuit 50b, and emits the green laser light to the collimator lens 80b as green laser modulated light. The R laser 70c modulates the intensity of the red laser light based on the modulation drive signal from the R laser drive circuit 50c, and emits the red laser light as the red laser intensity modulated light to the collimating lens 80c.

  The collimating lens 80a converts the blue laser intensity modulated light from the B laser 70a into blue parallel light and emits it to the dichroic mirror 90a. The collimating lens 80b converts the green laser intensity-modulated light from the G laser 70b into green parallel light and emits it to the dichroic mirror 90b. The collimating lens 80c converts the red laser-modulated light from the R laser 70c into red parallel light and emits it to the dichroic mirror 90c.

  The dichroic mirror 90c reflects the red parallel light from the collimating lens 80c toward the dichroic mirror 90b. The dichroic mirror 80b combines the green parallel light from the collimating lens 70b and the red parallel light from the dichroic mirror 90c, and outputs the combined parallel light toward the dichroic mirror 90a. The dichroic mirror 90 a combines the blue parallel light from the collimating lens 80 a and the combined parallel light from the dichroic mirror 90 b and emits the combined parallel light toward the coupling optical system 100.

  The coupling optical system 100 condenses the combined parallel light from the dichroic mirror 90a and makes it incident on the optical fiber 110 from its incident end. The optical fiber 110 guides incident light from the dichroic mirror 90a, and this optical fiber 110 emits the guided light toward the collimating lens 120 from its exit end. In the first embodiment, the coupling optical system 100 is configured with a convex lens.

  The collimating lens 120 converts the emitted light from the optical fiber 110 into parallel light and emits it toward the horizontal scanning mechanism 200. The collimating lens 120 is disposed in the vicinity of the horizontal scanning mechanism 200.

  As shown in FIG. 2, the control unit Bb includes an operation switch 130, a timer 140, a line-of-sight sensor 150, and a control circuit 160. The operation switch 130 generates an operation signal when it is turned on. As the timer 140 operates, the timer 140 repeatedly measures a predetermined time (for example, 30 (minutes) or 60 (minutes)), and generates a trigger signal every time the predetermined time is counted.

  As shown in FIGS. 2 and 6, the line-of-sight sensor 150 includes a light emitting element 150a and a light receiving element 150b. The light emitting element 150a is supported by the center portion on the upper outer edge of the left annular portion 11 of the frame 10a of the frame 10 so as to face the pupil Ia of the left eye I on its light emitting surface. For this reason, the light emitting element 150a emits infrared light toward the pupil Ia of the left eye I by the light emission. In the first embodiment, a near-infrared light emitting diode is employed as the light emitting element 150a.

  The light receiving element 150b is composed of a two-dimensional element, and the light receiving element 150b is below the left annular portion 11 of the frame 10a of the frame 10 so that the light receiving surface faces the pupil Ia of the left eye I. It is supported at the center of the outer edge. For this reason, the light receiving element 150b receives infrared light reflected from the pupil Ia of the left eye I on its light receiving surface, and generates a light reception signal representing a two-dimensional image of the pupil Ia.

  The control circuit 160 includes a microcomputer 160a and a constant voltage power source 160b. The microcomputer 160a executes the computer program according to the flowchart shown in FIG. 7, and during this execution, the operation output of the operation switch 130, the time measurement output from the timer 140, the video synchronization signal and the constant voltage from the video signal processing circuit 40 are executed. Based on a constant voltage from the power supply 160b, light emission drive processing of the light emitting element 150a, center position determination processing of the pupil Ia of the left eye I, voltage application processing between the spot electrode 22 and the common electrode 24 of the left reflecting mirror 20, etc. I do. The constant voltage power supply 160b outputs a DC constant voltage to the microcomputer 160a. The computer program is stored in advance in the ROM of the microcomputer 160a so as to be readable by the microcomputer.

  The right device body B has the same configuration as the left device body B as described above, but the support position of the line-of-sight sensor 150 of the right device body B is different from the line-of-sight sensor 150 of the left device body B. That is, in the line-of-sight sensor 150 of the right side device main body B, the light emitting element 150a is located at the center of the upper outer edge of the right annular portion 11 of the frame 10a of the frame 10 so that the light emitting surface faces the pupil Ia of the right eye I. Supported by the department. For this reason, the light emitting element 150a emits infrared light toward the pupil Ia of the right eye I by the light emission. In addition, the light receiving element 150b is supported at the center portion of the lower outer edge of the right annular portion 11 of the frame 10a of the frame 10 so that the light receiving surface thereof faces the pupil Ia of the right eye I. For this reason, the light receiving element 150b receives infrared light reflected from the pupil Ia of the right eye I on its light receiving surface, and generates a light receiving signal representing a two-dimensional image of the pupil Ia.

  As shown in FIG. 1, the left and right both-side optical scanning units C are housed in appropriate casings together with the optical sensor 30 a and the collimating lens 120, respectively, and from the frames 10 a of the left and right temples 10 b. It is supported by the extended proximal end. Hereinafter, since both the left and right optical scanning units C have the same configuration, the configuration of the left optical scanning unit C will be described as an example.

  The left side light scanning unit C includes a horizontal scanning mechanism 200, a relay optical system 210, a vertical scanning mechanism 220, and a relay optical system 230 as shown in FIG. The horizontal scanning mechanism 200 includes a horizontal scanning reflecting plate 201. The reflecting plate 201 is illustrated by the two support shafts 202 between the two opposing support shafts 202 coaxially supported by an appropriate stationary member. 2 is supported so as to be swingable in the direction of the arrow X shown in the figure.

  Accordingly, the horizontal scanning mechanism 200 is driven by the horizontal scanning driving circuit 60a based on each horizontal synchronizing signal from the video signal processing circuit 40, and swings the reflecting plate 201 in the arrow X direction. Under such a swing, the reflecting plate 201 reflects the parallel light incident from the collimating lens 120 while scanning in the horizontal direction according to the swing angle. This means that the parallel light from the collimating lens 120 is emitted as horizontal scanning light toward the relay optical system 210 while being horizontally scanned in the X direction by the reflecting plate 201 by the horizontal scanning mechanism 200.

  The relay optical system 210 converts the horizontal scanning light from the reflection plate 201 so as to be parallel to the optical axis of the relay optical system 210, collects the light, and emits the light toward the reflection plate 221 of the vertical scanning mechanism 220. .

  The vertical scanning mechanism 220 includes a vertical scanning reflecting plate 221. The reflecting plate 221 can be swung in a direction indicated by an arrow Y in FIG. 2 by a support shaft 222 supported by an appropriate stationary member. It is supported. Accordingly, the vertical scanning mechanism 220 is driven by the vertical scanning driving circuit 60b based on each vertical synchronizing signal from the video signal processing circuit 40, and swings the reflecting plate 221 in the arrow Y direction. Under such a swing, the reflection plate 221 reflects the parallel scanning light from the relay optical system 210 while scanning in the vertical direction according to the swing angle. This means that the parallel scanning light from the relay optical system 210 is reflected as the vertical scanning light toward the relay optical system 230 while being vertically scanned in the Y direction by the reflecting plate 221 by the vertical scanning mechanism 220. To do.

  The relay optical system 230 converts the vertical scanning light from the reflection plate 221 of the vertical scanning mechanism 220 so as to be parallel to the optical axis of the relay optical system 230, and then collects and reflects the reflection surface of the left reflecting mirror 20. The light is emitted toward 25a.

  According to the left-side optical scanning unit C configured as described above, the light emitted from the collimating lens 120 by the apparatus main body B is horizontally scanned in the X direction by the horizontal scanning mechanism 200 and vertically scanned by the vertical scanning mechanism 220. As a result, the light enters the reflecting surface 25a of the left reflecting mirror 20 as two-dimensional scanning light. This means that the scanning light reflected by the left reflecting mirror 20 passes through the pupil Ia of the left eye I and forms a two-dimensional image on the retina Ib for each frame of the video signal.

  Further, since the right side light scanning unit C has the same configuration as the left side light scanning unit C, according to the right side light scanning unit C, the light emitted from the collimating lens 120 of the apparatus main body B is as described above. By the same horizontal scanning and vertical scanning, the light enters the reflecting surface 25a of the right reflecting mirror 20 as two-dimensional scanning light. This means that the scanning light reflected by the right reflecting mirror 20 passes through the pupil Ia of the right eye I and forms a two-dimensional image on the retina Ib for each frame of the video signal.

  In the first embodiment configured as described above, it is assumed that the glasses A are attached to the above-described observer's face and the image display device is in an operating state. Hereinafter, the operations of the left reflecting mirror 20, the left device main body B, and the left light scanning unit C among the left and right both reflecting mirrors 20, the left and right both device main bodies B, and the left and right both light scanning units C will be described as examples.

  In the control unit Bb of the left apparatus body B, the microcomputer 160a starts executing the computer program according to the flowchart of FIG. In addition, the timer 140 repeatedly starts counting the predetermined time, and generates a trigger signal every time the predetermined time is finished.

  Accordingly, in step 170, the standard shape setting process for the left reflecting mirror 20 is performed using a predetermined standard table. The basis for introducing the standard table in the standard shape setting process will be described.

  In order to properly form and display the two-dimensional image of the video signal on the retina of the left eye when the center position of the pupil of the left eye is at the standard center position of the pupil, the reflection layer 25 of the left reflecting mirror 20 is used. The incident scanning light from the relay optical system 230 needs to be reflected by the reflecting surface 25a and appropriately incident on the pupil of the left eye. In other words, it is necessary to control the inclination of each pixel Q on which the scanning light from the relay optical system 230 sequentially enters on the reflection surface 25a so as to enable such incidence.

Therefore, specifically, establishment of predetermined standard optical conditions that satisfy the following conditions is required.
(1) The center position of the pupil of the left eye is at the standard center position in relation to the position of the reflecting surface 25a.
(2) Between each pixel Q, the standard center position of the pupil of the left eye, and the incident direction of the scanning light from the optical relay 230 to each pixel Q (incident angle of the scanning light with respect to the reflecting surface 25a in the planar state) The geometric relationship is such that incident scanning light from the relay optical system 230 to each pixel Q is sequentially reflected by each pixel Q and appropriately imaged and displayed as a two-dimensional image on the retina of the left eye I. thing.

  In other words, on the reflection surface 25a, for each pixel Q, each of the four piezoelectric parts 23a (hereinafter also referred to as four pixel-corresponding piezoelectric parts 23a) corresponding to the four square regions 25b centered on one pixel Q. The relationship between the standard voltage to be applied and the standard plate thickness of each pixel-corresponding piezoelectric portion 23a (hereinafter also referred to as a standard voltage-standard plate thickness relationship) satisfies the above geometric relationship.

  On the basis of the introduction of the standard table as described above, in the first embodiment, the standard table is set with data representing the standard voltage-standard plate thickness relationship so as to satisfy the standard optical condition. Then, it is stored in advance in the ROM of the microcomputer 60a so as to be readable.

  Thus, in the standard shape setting process, among the plurality of spot electrodes 22 of the left reflecting mirror 20, each spot electrode 22 corresponding to each pixel corresponding piezoelectric portion 23a (hereinafter also referred to as each pixel corresponding spot electrode 22) is used. Each standard voltage to be applied to the common electrode 24 is determined using the standard table based on the constant voltage from the constant voltage power supply 160b.

  Each standard voltage determined in this way is output to the left reflecting mirror 20 by the microcomputer 160a, and is applied to each pixel-corresponding piezoelectric portion 23a through between each pixel-corresponding spot electrode 22 and the common electrode 24. . Thereby, the plate thickness of each pixel corresponding piezoelectric portion 23a is controlled to each standard plate thickness. As a result, the shape of the common electrode 24 is controlled in accordance with the control to the standard plate thickness of each pixel-corresponding piezoelectric portion 23a, and the tilt of each pixel Q of the reflective layer 25 is controlled so as to satisfy the standard optical condition. . This means that the shape of the left reflecting mirror 20 is set to a standard shape.

  Accordingly, when the center position of the pupil Ia of the left eye I is at the standard center position on the face of the observer wearing the glasses A as described above, the scanning light sequentially emitted from the relay optical system 230 is The light is sequentially reflected by each pixel Q of the left reflecting mirror 20 and appropriately enters the pupil Ia. For example, the scanning lights L1, L2, and L3 from the relay optical system 230 indicated by the solid line in FIG. 8 are sequentially reflected by the corresponding pixels Q of the left reflecting mirror 20 and reflected as the reflected scanning lights R1, R2, and R3. Is properly incident.

  A two-dimensional image can be appropriately displayed on the retina of the left eye I by such incidence of scanning light. As a result, the observer wearing the glasses A as described above can properly view the two-dimensional image of the video signal with the left eye I.

  After step 170, if the timer 140 has not generated a trigger signal and the operation switch 130 has not generated an operation signal, NO is sequentially determined in both steps 171 and 172.

  Thereafter, if the timer 140 generates a trigger signal or the operation switch 130 generates an operation signal, YES is determined in step 171, or YES is determined in step 172 after determination of NO in step 171. Determined. Then, in step 173, a light emitting element driving process is performed. Accordingly, the light emitting element 150a of the left visual line sensor 150 is driven to emit light and emit infrared rays toward the left eye I. For this reason, the left eye I reflects the incident infrared light and enters the light receiving element 150b. Accordingly, the light receiving element 150b detects the incident light and outputs a light receiving signal representing a two-dimensional image of the pupil Ia to the microcomputer 160a.

  After the processing in step 173, in step 174, pupil center position determination processing is performed. In this pupil position determination process, the contour of the pupil Ia of the left eye I is extracted based on the light reception signal from the light receiving element 150b, and the center position of the pupil Ia of the left eye I is determined based on this extracted contour.

  When the processing in step 174 is completed in this way, in the next step 175, it is determined whether or not the determined center position of the pupil in step 174 is deviated from the standard center position. The standard center position is stored in advance in the ROM of the microcomputer 160a as data so as to be readable by the microcomputer.

  Therefore, at the present stage, since the determined center position of the pupil Ia of the left eye I is at the standard center position as described above, there is no deviation of the determined center position. Accordingly, NO is determined in step 175. Next, since the two-dimensional image displayed on the retina of the left eye I is appropriate as described above, YES is determined in step 177.

  By the way, as shown in FIG. 9, the pupil Ia of the left eye I of the observer wearing the glasses A as described above is immediately behind the pupil Ia of the left eye I shown in FIG. 8 (illustrated in FIG. 8). If it is located in the direction of arrow Ara), the determined center position of pupil Ia in step 174 is shifted in the direction of arrow Ara from the standard center position. For this reason, it is determined YES in step 175 that there is a pupil position shift.

  Accordingly, in the next step 176, the shape correction processing of the left reflecting mirror 20 is performed as follows in synchronization with the video synchronization signal from the video signal processing circuit 40. As described above, when the determined center position of the pupil Ia is deviated in the arrow Ara direction from the standard center position, the scanning light sequentially emitted from the relay optical system 230 is sequentially reflected by the pixels Q of the left reflecting mirror 20. The conditions for properly entering the pupil Ia will be described with reference to FIG.

  The reflection direction of each of the incident scanning lights L1, L2, and L3 by the left reflecting mirror 20 is that of each of the reflected scanning lights R11, R22, and R33 indicated by a broken line in FIG. 9 from the traveling direction of each of the reflected scanning lights R1, R2, and R3. It needs to be corrected in the direction of travel.

  That is, the traveling direction of the reflected scanning light R11 needs to be corrected by the angle α in the clockwise direction with respect to the traveling direction of the reflected scanning light R1. Further, the traveling direction of the reflected scanning light R22 is corrected by an angle β in the clockwise direction from the traveling direction of the reflected scanning light R2, and the traveling direction of the reflected scanning light R33 is counterclockwise than the traveling direction of the reflected scanning light R3. Only the angle γ needs to be corrected. Here, the angles α, β, and γ described above are the pupils Ia from the standard center position on the premise of the geometric positional relationship between the pupil Ia in FIG. 9 and the corresponding pixels Q of the left reflecting mirror 20. This corresponds to each shift length of the determined center position in the arrow Ara direction.

  Therefore, the inclination angle of each corresponding pixel Q of the left reflecting mirror 20 needs to be corrected corresponding to each of the angles α, β and γ. For example, the tilt angle of the pixel Q to which the scanning light L1 is incident needs to be corrected to be smaller than the tilt angle shown in FIG. 8 by the angle δ in the clockwise direction in FIG. Further, the inclination angle of the pixel Q to which the scanning light L2 is incident is corrected to be larger by the angle ε in the clockwise direction in FIG. 9 than the inclination angle shown in FIG. Is required to be corrected by an angle ζ smaller than the inclination angle shown in FIG. 8 in the counterclockwise direction shown in FIG.

  For this reason, the applied voltage to each piezoelectric part 23a corresponding to the four square regions 25a centering on the pixel Q to which the scanning light L1 is incident reduces the inclination angle of the pixel Q to which the scanning light L1 is incident by an angle δ. Need to be corrected. Further, the applied voltage to each piezoelectric region 23a corresponding to the four square regions 25a centering on the pixel Q to which the scanning light L2 is incident causes the inclination angle of the pixel Q on which the scanning light L2 is incident to increase by an angle ε. The applied voltage to each piezoelectric portion 23a corresponding to the four square regions 25a centered on the pixel Q where the scanning light L3 is incident is reduced by the angle ζ. Need to be corrected.

  When each correction voltage as described above is applied to each corresponding piezoelectric portion 23a via each corresponding spot electrode 22 and common electrode 24, the plate thickness of each corresponding piezoelectric portion 23a is controlled. For this reason, the shape of the common electrode 24 is controlled in accordance with the plate thickness control of each pixel-corresponding piezoelectric portion 23a, and the inclination of each pixel Q of the reflective layer 25 reflects the reflection direction of each reflected scanning light R1, R2, and R3. It is controlled so as to coincide with the reflection direction of the scanning lights R11, R22 and R33. This means that the shape of the left reflecting mirror 20 is corrected from the standard shape to the target shape.

  Therefore, even if the determined center position of the pupil Ia of the left eye I is deviated from the standard center position in the direction of the arrow Ara as described above, the scanning light sequentially emitted from the relay optical system 230 The light is sequentially reflected by the pixels Q and appropriately enters the pupil Ia. A two-dimensional image can be appropriately displayed on the retina of the left eye I by such incidence of scanning light. As a result, the observer wearing the glasses A as described above can obtain the two-dimensional image signal from the left eye I regardless of the deviation of the center position of the pupil in the direction immediately after the standard communication position. The image can be viewed properly.

  Further, as shown in FIG. 10, the pupil Ia of the left eye I of the observer wearing the glasses A as described above is in the right direction (illustrated in FIG. 10) of the pupil Ia of the left eye I shown in FIG. If the position is shifted in the direction of arrow Arb), the determined center position of pupil Ia in step 174 is shifted in the direction of arrow Arb from the standard center position. For this reason, it is determined as YES in Step 175 that there is a shift in the position of the pupil.

  Accordingly, in step 176, the shape correction process of the left reflecting mirror 20 is performed as follows. As described above, when the determined center position of the pupil Ia is shifted from the standard center position in the direction of the arrow Arb, the scanning light sequentially emitted from the relay optical system 230 is sequentially reflected by the pixels Q of the left reflecting mirror 20. The conditions for properly entering the pupil Ia will be described with reference to FIG.

  The reflection direction of each of the incident scanning lights L1, L2, and L3 by the left reflecting mirror 20 is that of each of the reflected scanning lights R111, R222, and R333 indicated by a broken line in FIG. 10 from the traveling direction of each of the reflected scanning lights R1, R2, and R3. It needs to be corrected in the direction of travel.

  That is, the traveling direction of the reflected scanning light R111 needs to be corrected by the angle αa in the clockwise direction with respect to the traveling direction of the reflected scanning light R1. Further, the traveling direction of the reflected scanning light R222 is corrected by an angle βa in the clockwise direction from the traveling direction of the reflected scanning light R2, and the traveling direction of the reflected scanning light R333 is more clockwise than the traveling direction of the reflected scanning light R3. Only the angle γa needs to be corrected. Here, the angles αa, βa, and γa are determined from the standard center position of the determined center position of the pupil Ia on the premise of the geometric positional relationship between the pupil Ia and the corresponding pixels Q of the left reflector 20. Corresponds to each right shift length.

  Therefore, the inclination angle of each corresponding pixel Q of the left reflecting mirror 20 needs to be corrected corresponding to each of the angles αa, βa, and γa. For example, the tilt angle of the pixel Q to which the scanning light L1 is incident needs to be corrected to be smaller than the tilt angle shown in FIG. 8 by an angle δa in the clockwise direction in FIG. Further, the inclination angle of the pixel Q to which the scanning light L2 is incident is corrected to be larger by the angle εa in the clockwise direction in FIG. 10 than the inclination angle shown in FIG. The tilt angle needs to be corrected so as to be larger by the angle ζa in the counterclockwise direction shown in FIG. 10 than the tilt angle shown in FIG.

  For this reason, the applied voltage to each piezoelectric region 23a corresponding to the four square regions 25a centering on the pixel Q on which the scanning light L1 is incident reduces the inclination angle of the pixel Q on which the scanning light L1 is incident by an angle δa. Need to be corrected. Further, the applied voltage to each piezoelectric portion 23a corresponding to the four square regions 25a centered on the pixel Q to which the scanning light L2 is incident causes the inclination angle of the pixel Q to which the scanning light L2 is incident to increase by an angle εa. In addition, the applied voltage to each piezoelectric portion 23a corresponding to the four square regions 25a centering on the pixel Q on which the scanning light L3 is incident is the angle ζa of the inclination angle of the pixel Q on which the scanning light L3 is incident. It needs to be corrected so as to increase only.

  When each correction voltage as described above is applied to each corresponding piezoelectric portion 23a via each corresponding spot electrode 22 and common electrode 24, the plate thickness of each corresponding piezoelectric portion 23a is controlled. For this reason, the shape of the common electrode 24 is controlled in accordance with the plate thickness control of each pixel-corresponding piezoelectric portion 23a, and the inclination of each pixel Q of the reflective layer 25 reflects the reflection direction of each reflected scanning light R1, R2, and R3. Control is performed so as to match the reflection direction of the scanning lights R111, R222, and R333. This means that the shape of the left reflecting mirror 20 is corrected from the standard shape to the target shape.

  Therefore, even if the determined center position of the pupil Ia of the left eye I is shifted to the right from the standard center position as described above, the scanning light sequentially emitted from the relay optical system 230 is not transmitted to each pixel of the left reflecting mirror 20. The light is sequentially reflected by Q and appropriately enters the pupil Ia. A two-dimensional image can be appropriately displayed on the retina of the left eye I by such incidence of scanning light. As a result, the observer wearing the glasses A as described above can obtain the two-dimensional image of the video signal with the left eye I regardless of the shift of the center position of the pupil to the right of the standard communication position. Can be visually recognized appropriately.

  Further, even when the determined center position of the pupil Ia of the left eye I is shifted to the left as shown in FIG. 10 from the right shift of the standard center position described above, the inclination of each pixel Q is The incident direction of the scanning light to the pupil Ia can be appropriately controlled by correcting in the opposite direction to the inclination correction direction of each pixel Q in the case where the pupil Ia is shifted to the right of the standard center position. .

  Further, as described above, since the substrate 21, the plurality of spot electrodes 22, the piezoelectric body 23, the common electrode 24, and the reflective layer 25 are all transparent in the reflecting mirror 20, the scenery in front of the substrate can be visually recognized through the reflecting mirror 20. However, the two-dimensional image of the video signal can be properly viewed.

  Further, as described above, since the shape correction process of the reflecting mirror 20 is performed in synchronization with the video synchronization signal from the video signal processing circuit 40, the shape correction from the standard shape of the reflective layer 25 to the target shape is performed by the above video. This is done in synchronization with each frame of the signal. Therefore, the incident direction of the scanning light to the pupil Ia can be controlled with higher accuracy.

  Further, as described above, every time the timer 140 finishes counting the predetermined time, the shape of the reflecting mirror 20 is corrected from the standard shape to the target shape based on the deviation of the pupil center position from the standard center position. Therefore, even if the pupil center position deviates from the standard center position, the shape of the reflecting mirror 20 is corrected appropriately and automatically every time the predetermined time is elapsed, and the above-described two-dimensional image of the video signal is corrected. An imaging display can always be ensured.

As described above, each time the operation switch 130 is turned on, the reflecting mirror 20 is corrected from the standard shape to the target shape based on the deviation of the pupil center position from the standard center position. Therefore, even if there is a deviation from the standard center position of the pupil center position, by turning on the operation switch 130, the shape of the reflecting mirror 20 is appropriately and automatically corrected, and the above-described two-dimensional image of the video signal is obtained. The image formation display can always be ensured.
(Second Embodiment)
FIG. 11 shows a main part of a second embodiment of the eyeglass-type image display device according to the present invention. In the second embodiment, the microcomputer 160a of the control circuit 160 described in the first embodiment is modified to execute the computer program according to the flowchart shown in FIG. 11 instead of the flowchart in FIG. ing. Other configurations are the same as those in the first embodiment.

  In the second embodiment configured as described above, similarly to the first embodiment, the eyeglasses A are mounted on the face of the observer described above, and the image display device is in an activated state. Hereinafter, as described in the first embodiment, each operation of the left reflecting mirror 20, the left device main body B, and the left optical scanning unit C will be described as an example.

  In the control unit Bb of the left apparatus body B, the microcomputer 160a starts executing the computer program according to the flowchart of FIG. In addition, the timer 140 repeatedly starts counting the predetermined time, and generates a trigger signal every time the predetermined time is finished.

  At this stage, if the timer 140 does not generate a trigger signal and the operation switch 130 does not generate an operation signal, it is sequentially determined as NO in both steps 171 and 172.

  Thereafter, when the timer 140 generates a trigger signal or the operation switch 130 generates an operation signal, YES is determined in step 171, or YES in step 172 after determination of NO in step 171. Determined. Accordingly, as in the first embodiment, in the light emitting element driving process in step 173, the light emitting element 150a of the left visual line sensor 150 is driven to emit light and emit infrared rays toward the left eye I. For this reason, the left eye I reflects the incident infrared light and enters the light receiving element 150b. Accordingly, the light receiving element 150b detects the incident light and outputs it to the microcomputer 160a as a light receiving signal representing a two-dimensional image of the pupil Ia.

  After the processing in step 173, in step 174, the center position of the pupil Ia is determined based on the light reception signal from the light receiving element 150b as in the first embodiment. In accordance with such determination, in the next step 178, the shape control process of the left reflecting mirror 20 is performed based on a predetermined control table. The grounds for introducing the control table in this shape control process will be described.

  The control table does not target the standard center position of the pupil as in the standard table described in the first embodiment, but is an arbitrary center position of the pupil of the left eye (hereinafter also referred to as an arbitrary center position). Is targeted.

  In order to properly form and display the two-dimensional image of the video signal on the retina of the left eye when the pupil of the left eye is at the arbitrary center position, a relay optical system that enters the reflection layer 25 of the left reflector 20 The inclination of each pixel Q to which the scanning light from the relay optical system 230 sequentially enters in the reflection layer 25 is controlled so that the scanning light from 230 is reflected by the reflection layer 25 and is appropriately incident on the pupil of the left eye. Need to be done.

Therefore, specifically, it is necessary to satisfy predetermined general optical conditions that satisfy the following conditions.
(1) The center position of the pupil of the left eye is at the arbitrary center position in relation to the position of the reflecting surface 25a.
(2) Between each pixel Q, the arbitrary center position of the pupil of the left eye, and the incident direction of the scanning light from the optical relay 230 to each pixel Q (incident angle of the scanning light with respect to the reflection surface 25a in the planar state) The geometric relationship is such that incident scanning light from the relay optical system 230 to each pixel Q is sequentially reflected by each pixel Q and appropriately imaged and displayed as a two-dimensional image on the retina of the left eye I. thing.

  In other words, the standard voltage-standard plate thickness relationship described in the first embodiment (hereinafter also referred to as the first standard voltage-standard plate thickness relationship) is based on the arbitrary center position of the pupil of the left eye. The relationship changed so as to satisfy the geometric relationship (hereinafter also referred to as a second standard voltage-standard plate thickness relationship).

  On the basis of the introduction of the control table as described above, in the second embodiment, the control table is data representing the second standard voltage-standard plate thickness relationship so as to satisfy the general optical condition. Thus, it is set and stored in advance in the ROM of the microcomputer 60a so as to be readable instead of the standard table.

  Thus, in the shape control process, each standard voltage to be applied between the pixel-corresponding spot electrode 22 and the common electrode 24 among the plurality of spot electrodes 22 of the left reflecting mirror 20 is supplied from the constant voltage power supply 160b. It is determined using the control table based on the constant voltage.

  Each standard voltage determined in this way is applied to each pixel corresponding piezoelectric region via the pixel corresponding spot electrode 22 and the common electrode 24 of the left reflective layer 25 by the microcomputer 160a as in the first embodiment. 23a. Thereby, the plate thickness of each pixel corresponding piezoelectric portion 23a is controlled to each standard plate thickness. As a result, the shape of the common electrode 24 is controlled in accordance with the control of the pixel-corresponding piezoelectric portion 23a to the standard plate thickness, and each pixel Q of the reflective layer 25 is tilt-controlled so as to satisfy the general optical condition. . This means that the shape of the left reflecting mirror 20 is directly controlled to the target shape, unlike the first embodiment.

  Accordingly, even when the center position of the pupil Ia of the left eye I is at the arbitrary center position on the face of the observer wearing the glasses A as described above, the scanning light sequentially emitted from the relay optical system 230 is The light is sequentially reflected by each pixel Q of the left reflecting mirror 20 and appropriately enters the pupil Ia. A two-dimensional image can be appropriately displayed on the retina of the left eye I by such incidence of scanning light. As a result, even when the center position of the pupil of the left eye I is at the arbitrary center position, the observer wearing the glasses A as described above can appropriately display the two-dimensional image of the video signal with the left eye I. It can be visually recognized.

In the second embodiment, instead of performing the shape correction process of the reflecting mirror after performing the standard shape setting process of the left reflecting mirror 20 as in the first embodiment, the left eye as described above is performed. The shape control process of the reflector is directly performed on the assumption of the arbitrary center position of the pupil. Therefore, the shape control process of the reflecting mirror can be further simplified as compared with the first embodiment. Other functions and effects are substantially the same as those of the first embodiment.
(Third embodiment)
FIG. 12 shows the main part of the third embodiment of the present invention. In the third embodiment, instead of the left and right side reflecting mirrors 20 described in the first embodiment, left and right side reflecting mirrors 20A are employed as illustrated in FIG.

  Here, since both the left and right reflecting mirrors 20A have the same configuration, the configuration of the left reflecting mirror 20A will be described with reference to FIG. The left reflecting mirror 20A has a configuration in which a plurality of spot electrodes 26 are employed in place of the plurality of spot electrodes 22 in the left reflecting mirror 20 described in the first embodiment.

  Each of the plurality of spot electrodes 26 is configured by a disk-shaped electrode having an outer diameter smaller than that of the spot electrode 22 of the left reflecting mirror 20 described in the first embodiment.

  Therefore, in the third embodiment, the plurality of spot electrodes 26 are formed at the respective end faces in the plate thickness direction, as illustrated in FIG. In the embodiment, the piezoelectric body 23 and the substrate 21 are arranged so as to correspond to the plurality of two-dot chain lines L and their intersections P (each grid point P) in each region divided by a plurality of two-dot chain lines L in the embodiment. Is sandwiched between.

  Here, among the plurality of spot electrodes 26, every predetermined number (four in the second embodiment) of the spot electrodes 26 has respective square regions 25b of the reflecting surface 25a of the reflecting layer 25 at their respective end faces in the plate thickness direction. It corresponds within. Further, the remaining spot electrodes 26 except for all the predetermined number of spot electrodes 26 among the plurality of spot electrodes 26 are eight so as to surround the predetermined number of spot electrodes 26 for each of the predetermined number of spot electrodes 26. 4 each corresponding to four sides of each square region 25b (four sides of each region defined by the plurality of two-dot chain lines L), and four corners of each square region 25b (above It is arranged corresponding to each intersection P).

  According to such an arrangement of the plurality of spot electrodes 26, for each pixel Q described in the first embodiment, one pixel Q is centered on the spot electrode 26 corresponding to the intersection P and the spot electrode 26. It is in a position corresponding to a plurality of (for example, four) spot electrodes 26. The predetermined number of spot electrodes 26 are located at positions corresponding to the spot electrodes 22 described in the first embodiment. Other configurations of the third embodiment are the same as those of the first or second embodiment.

  In the third embodiment configured as described above, each pixel voltage is applied between each spot electrode 26 corresponding to one pixel Q and the common electrode 24 for each pixel Q, and each standard voltage is Each predetermined number of spot electrodes 26 is applied between each spot electrode 26 corresponding to the predetermined number of spot electrodes 26 and the common electrode 24. Here, in the third embodiment, each pixel voltage and each standard voltage satisfy the standard optical condition or the general optical condition, and each pixel Q corresponds to the scanning light incident on each pixel Q. It is determined to clean the wavefront of the reflected scanning light. Here, the above-mentioned “cleaning the wavefront of the reflected scanning light” means, for example, making the wavefront of the reflected scanning light spherical or flat.

  Therefore, in the third embodiment, the reflector 20 set in the reflector standard shape setting process described in the first embodiment is set to the reflector mirror standard shape described in the first embodiment. The wavefront of the reflected scanning light of each pixel Q can be cleaned in the same manner as described above, while effectively achieving the operational effects associated with the above, and the optical aberration can be effectively reduced. Further, in the shape correction processing after the standard shape setting processing of the reflector described in the first embodiment, each pixel voltage and each standard voltage cleans the wavefront of the reflected scanning light of each pixel Q as described above. Thus, the correction is performed in the same manner as in the first embodiment in accordance with the deviation of the center position of the pupil Ia from the standard center position. According to the reflecting mirror 20 corrected in this way, the wavefront of the reflected scanning light of each pixel Q is as described above while achieving the effect after correction described in the first embodiment even after the correction. Similarly, it can be cleaned to effectively reduce optical aberrations.

Further, in the third embodiment, according to the reflecting mirror 20 whose shape is controlled under the shape control processing of the reflecting mirror described in the second embodiment, the function and effect described in the second embodiment are provided. While achieving the above, the wavefront of the reflected scanning light of each pixel Q can be cleaned in the same manner as described above to effectively reduce the optical aberration.
(Fourth embodiment)
FIG. 13 shows the main part of the fourth embodiment of the present invention. In the fourth embodiment, instead of the left and right side reflecting mirrors 20 described in the first embodiment, left and right side reflecting mirrors 20B are employed as illustrated in FIG.

  Here, since both the left and right reflecting mirrors 20B have the same configuration, the configuration of the left reflecting mirror 20B will be described with reference to FIG. The left reflecting mirror 20B employs a plurality of linear electrodes 22a and a plurality of linear electrodes 24a in place of the plurality of spot electrodes 22 and the common electrode 24 in the left reflecting mirror 20 described in the first embodiment. It has a configuration.

  The plurality of linear electrodes 22a are arranged in parallel with each other along the surface of the substrate 21 along the X direction described in the first embodiment, and between the substrate 21 and the piezoelectric body 23. Is sandwiched between.

  The plurality of linear electrodes 24a are arranged in parallel to each other on the surface of the piezoelectric body 23 along the Y direction described in the first embodiment so as to be spaced apart from each other. Is sandwiched between. In other words, the plurality of linear electrodes 24a are disposed so as to be opposed to the plurality of linear electrodes 22a through the piezoelectric body 23 so as to be orthogonal to the X direction and the Y direction.

  Here, each of the plurality of orthogonal portions formed between the plurality of linear electrodes 22a and the plurality of linear electrodes 24a is formed in each square region 25b of the reflective layer 25 described in the first embodiment. Correspond. Other configurations of the fourth embodiment are the same as those of the first or second embodiment.

  In the fourth embodiment configured as described above, the incident part of the scanning light from the relay optical system 230 to the reflecting surface 25a (that is, the scanning) for each standard voltage described in the first or second embodiment. Applied between the electrodes 22a and 24a corresponding to the light incident pixel Q). Along with this, each standard voltage is applied to the piezoelectric portion 23a of the piezoelectric body 23 corresponding thereto through the orthogonal portions of the electrodes 22a and 24a.

  Thereby, the inclination of the incident pixel Q is controlled in the same manner as in the first or second embodiment, and as a result, substantially the same effect as that in the first or second embodiment can be achieved. Here, between the electrodes 24a among the plurality of electrodes 24a, there is a space, and the shape does not change by the application of the standard voltage as described above. Therefore, the above-described effect can be achieved only by displacement of the corresponding portion of the electrode 24a relative to the orthogonal portion.

In the fourth embodiment, as the number of linear electrodes 22a and 24a increases, the shape of the reflecting surface 25a can be changed more precisely.
(Fifth embodiment)
FIG. 14 shows an essential part of a fifth embodiment of the present invention. In the fifth embodiment, left and right reflecting mirrors 20C (only the left reflecting mirror 20C is shown in FIG. 14) are employed instead of the left and right reflecting mirrors 20 described in the first embodiment. The relay optical systems 230 of the left and right side scanning units C described in the first embodiment are omitted.

  The left and right side reflecting mirrors 20C described above are respectively similar to the left and right side reflecting mirrors 20 described in the first embodiment on the left and right side annular portions 11 of the frame 10a of the glasses A described in the first embodiment. It is inset. Here, since both the left and right reflecting mirrors 20C have the same configuration, the configuration of the left reflecting mirror 20C will be described as an example.

  The left reflecting mirror 20C has a configuration in which a reflecting layer 27 is employed in place of the reflecting layer 25 in the left reflecting mirror 20 (see FIG. 3) described in the first embodiment. The reflective layer 27 is formed in the same manner as the reflective layer 25 described in the first embodiment so as to have a reflective surface 27a corresponding to the reflective surface 25a of the left reflecting mirror 20 described in the first embodiment. Made of material. In FIG. 14, reference numeral 28 denotes a plurality of one-side electrodes 22, a piezoelectric body 23, and other-side electrodes 24 (see the first embodiment) in the left reflecting mirror 20C.

  Here, the reflecting surface 27a is constituted by a part of a spheroid. In general, the spheroid is obtained by rotating an ellipse having both focal points F1 and F2 around a rotation axis Ld (see FIG. 14). Here, as shown in FIG. 14, both the focal points F1 and F2 are located on the rotation axis Ld with an interval. Thus, the spheroid has a property of reflecting light emitted from the focal point F1 and entering the focal point F2.

  Therefore, in the fifth embodiment, the vertical scanning mechanism 220 in the left-side optical scanning unit C described in the first embodiment is located on the rotation axis Ld of the spheroid at the center of the reflection plate 221. , So as to be located at the focal point F1. Further, when the observer wears the glasses A, the left reflecting mirror 20C is fitted into the left annular portion 11 of the frame 10a so that the left eye I is positioned at the focal point F2 at the center of the pupil Ia. Yes. Here, the shape of the left reflecting mirror 20C when no voltage is applied to each piezoelectric body 23 of the left reflecting mirror 20C is the standard shape described in the first embodiment (when no voltage is applied to the piezoelectric body 23). It may be a shape of Therefore, the surface shape of the reflecting surface 27a at this time corresponds to a standard ellipsoidal shape.

  Further, when the position of the pupil of the left eye I of the observer is deviated from the focal point F2, the reflective layer 27 is formed on the reflective surface 27a of each piezoelectric element 23 in the same manner as described in the first embodiment. As the thickness of the portion 23a changes, the shape is controlled so as to be partially inclined so that the scanning light incident on the reflecting surface 27a is incident on the pupil of the left eye I that is located off the focal point F2. To do. Other configurations are the same as those in the first embodiment.

  In the fifth embodiment configured in this way, as described above, the left and right reflecting mirrors 20C that effectively utilize the properties of the spheroid are adopted. For this reason, when the left and right eyes of the observer are at each focal point F2 at the center of the pupil, both the reflective layers 27 are standard in the right and left side reflecting mirrors 20C without applying a voltage to the left and right side reflecting mirrors 20C. Maintained in shape.

  Therefore, for example, taking the left reflecting mirror 20C as an example, the vertical scanning light reflected by the reflecting plate 221 of the vertical scanning mechanism 220 of the left vertical scanning unit C is incident on the reflecting surface 27a of the left reflecting mirror 20C. The light is reflected by the reflecting surface 27a and enters the pupil of the left eye I located at the focal point F2.

  In addition, when the pupil of the left eye I is located at the center of the pupil deviating from the focal point F2, the reflective layer 27 has the reflective surface 27a as described in the first embodiment. In addition, as the plate thickness of each piezoelectric portion 23a of the piezoelectric body 23 changes, the shape is deformed by being controlled to be partially inclined. This is because the above-mentioned spheroid has the new position of the pupil of the left eye I (position shifted from the focal point F2) and the central position of the reflector 221 (the position of the focal point F1) as new focal points. This means that the ellipse is reconstructed into a spheroidal surface obtained by rotating the ellipse around the rotation axis Ld.

  Accordingly, the vertical scanning light reflected by the reflecting surface 27a is reflected by the reflecting surface 27a of the reflecting layer 27 whose shape has been deformed as described above, and is incident on the pupil of the left eye I located away from the focal point F2.

  Thus, as in the fifth embodiment, each of the left and right reflecting mirrors 20C includes the reflecting layer 27 that uses the spheroid surface as the reflecting surface 27a. Regardless of the incident position of the vertical scanning light, the shape of the reflective layer 27, that is, the shape of the reflective surface 27a is determined according to the displacement of the pupil position.

  As a result, out of the plurality of spot electrodes 22 described in the first embodiment, the spot electrode corresponding to the portion where the vertical scanning light is not incident on the reflecting surface 27a is eliminated, and the dependence on the relay optical system 230 is eliminated. Substantially the same effects as described in the first embodiment can be achieved.

  In the fifth embodiment, as the number of spot electrodes 22 increases, the shape of the reflecting surface 27a as a part of the spheroid can be more accurately formed.

In carrying out the present invention, the following various modifications are possible without being limited to the above embodiments.
(1) The present invention may be applied not only to the eyeglass-type image display devices described in the above embodiments, but also to binocular-type or microscope-type image display devices. For example, in a binocular-type or microscope-type image display device, the reflecting mirror is disposed immediately outside the binoculars or microscope eyepiece so that a two-dimensional image from the eyepiece is appropriately incident on the pupil of the eye. It may be.

Further, the present invention may be applied not only to the eyeglass-type image display devices described in the above embodiments but also to a projector-type image display device. For example, the reflection mirror described in the above embodiments may be applied as the last-stage reflection mirror of the projector so that the projection image from the projector is an image without distortion.
(2) Moreover, you may employ | adopt the dichroic mirror which reflects only a specific wavelength (for example, the wavelength of red, blue, and green light) as a reflective layer of the reflective mirror described in said each embodiment. According to this, since only the wavelength of the light forming the two-dimensional image of the video signal is reflected toward the pupil of the observer's eye in each of the above embodiments, the color display of the two-dimensional image is further improved. Made.
(3) You may change the structure of the right-and-left both-sides reflecting mirror 20 described in the said 1st Embodiment as follows. Taking the left reflecting mirror 20 as an example, unlike the first embodiment, each of the plurality of spot electrodes 22 has an intersection of the two-dot chain lines L on the reflecting surface 25a of the reflecting layer 25 at the center. It may be changed so as to be sandwiched between the piezoelectric body 23 and the substrate 21 so as to be positioned at the position.
(4) Each constituent member of the left and right reflecting mirrors described in the above embodiments may be made of an opaque material.
(5) The reflective layer 25 may be formed of a conductive reflective material such as aluminum and provided along the piezoelectric body 23 so as to face the plurality of spot electrodes 22 via the piezoelectric body 23. According to this, the reflective layer made of an aluminum layer serves as the common electrode 24, and the common electrode 24 can be eliminated.
(6) If the reflective layer 25 is composed of a transparent dichroic mirror, the reflective layer reflects a light portion having a specific wavelength in the scanning light, so that the front of the eye can be visually recognized through the reflective layer. A two-dimensional image formed on the retina can be displayed well.
(7) In the left and right reflecting mirrors 20C described in the fifth embodiment, the reflecting layer 27 of each reflecting mirror portion 20D has a Fresnel reflecting surface forming the spheroidal surface instead of the reflecting surface 27a. It may be configured as follows.

  In this case, as described in the fifth embodiment, even if the pupil is displaced from the focal point F2, the Fresnel reflection surface is the plurality of Fresnel reflection surface portions, as described in the first embodiment. As the plate thickness of each piezoelectric portion 23a of the piezoelectric body 23 changes, the shape is deformed by being controlled to be inclined. Accordingly, the vertical scanning light is reflected by the Fresnel reflecting surface whose shape has been deformed as described above, and is incident on the pupil located at a position shifted from the focal point F2.

Thus, since the Fresnel reflecting surface plays the same role as the reflecting surface 27a described in the fifth embodiment, the same effect as described in the fifth embodiment can be achieved.
(8) The standard voltage and the standard plate thickness described above may include the voltage (= 0 (V)) when no voltage is applied to the piezoelectric body 23 and the plate thickness of the piezoelectric portion of the piezoelectric body 23.
(9) The image light described in the first to fourth embodiments may be incident on the left and right reflecting mirrors as non-scanning light without scanning. Accordingly, the left and right optical scanning units C are not necessary.

1 is a perspective view showing a first embodiment of an eyeglass-type image display device according to the present invention. FIG. 2 is a detailed block diagram illustrating the left device unit and the left light scanning unit of FIG. 1 in relation to the left reflector and the left eye of the glasses. It is a partial expanded sectional view of the left side reflecting mirror of FIG. FIG. 2 is a partially cutaway view of the left reflecting mirror of FIG. 1 as viewed from the reflecting layer side. It is an expansion disassembled perspective view of the left side reflecting mirror of FIG. FIG. 3 is an enlarged partial cross-sectional view illustrating a disposition relationship between the left eye gaze sensor of FIG. 2 and a frame of eyeglasses. It is a flowchart which shows the effect | action of the microcomputer of FIG. The left reflector portion illustrating the optical path of the scanning light between the left reflector and the left eye pupil when the center position of the pupil of the left eye is at the standard center position in relation to the left reflector It is an expanded sectional view. Partial enlargement of the left reflector illustrating the optical path of the scanning light between the left reflector and the left eye pupil when the center position of the pupil of the left eye is shifted immediately behind the standard center position of FIG. It is sectional drawing. Partial enlargement of the left reflector illustrating the optical path of the scanning light between the left reflector and the left eye pupil when the center position of the pupil of the left eye is shifted to the right of the standard center position of FIG. It is sectional drawing. It is a flowchart which shows the principal part of 2nd Embodiment of this invention. It is the fragmentary broken view which looked at the left side reflective mirror from the reflective layer side in 3rd Embodiment of this invention. It is a disassembled expansion perspective view of the left side reflecting mirror in 4th Embodiment of this invention. It is a side view of the left side reflecting mirror in a 5th embodiment of the present invention.

Explanation of symbols

B ... device main body, Ba ... light source unit, Bb ... control unit, C ... optical scanning unit,
F1, F2 ... focus, I ... eye, Ia ... pupil, Ld ... rotation axis, Q ... pixel,
20, 20A, 20B, 20C ... reflecting mirror, 21 ... substrate, 22,26 ... spot electrode,
22a, 24a ... linear electrode, 23 ... piezoelectric body, 24 ... common electrode, 25, 27 ... reflective layer,
25a ... reflective surface, 28 ... multiple one side electrodes, piezoelectric body, other side electrodes, 130 ... operation switches,
140 ... timer, 150 ... gaze sensor, 160a ... microcomputer,
160b ... Constant voltage power supply.

Claims (15)

Image light emitting means for emitting image light corresponding to a two-dimensional image;
A reflecting means having a reflecting surface for reflecting the image light emitted from the image light emitting means toward the pupil of the observer's eye,
In the image display device configured to display the two-dimensional image by causing the image light reflected by the reflecting surface to enter the pupil and form an image on the retina of the eye,
The reflecting means includes a deforming member that deforms the reflecting surface so that the image light is incident on the pupil according to a position of the pupil and an incident position of the image light on the reflecting surface. An image display device characterized by the above. Pupil position detection means for detecting the position of the pupil;
Control means for controlling the deformation of the deformation member according to the incident position of the image light on the reflecting surface and the pupil position detected by the pupil position detection means,
The reflecting means is
A reflective layer having the reflective surface;
The image display device according to claim 1, wherein the deformable member is provided on a side opposite to the reflective surface with respect to the reflective layer. The reflecting means includes a substrate provided on the opposite side of the reflecting layer with respect to the deformable member,
The deformable member includes a plate-like piezoelectric body that is piezoelectrically deformed with respect to the substrate, and both electrodes interposed between the substrate and the reflective layer so as to face each other with the piezoelectric material interposed therebetween. , One of the electrodes is configured in a shape that deforms the reflective layer in accordance with the piezoelectric deformation of the piezoelectric body,
The control means includes
According to the voltage generation means, the pupil position detected by the pupil position detection means, and the incident position of each light beam constituting the image light on the reflection layer, the reflection surface reflects the image light reflected by the reflection surface. Voltage adjusting means for adjusting a voltage generated from the voltage generating means so as to be deformed into a shape to be incident on the pupil,
3. The image display device according to claim 2, wherein the control is performed by applying a voltage adjusted by the voltage adjusting means to the piezoelectric body through the both electrodes to cause piezoelectric deformation of the piezoelectric body. . The voltage adjusting means is
Standard voltage setting means for setting a standard voltage with the reflective surface as a standard shape in the voltage generating means;
Based on the deviation between the pupil position detected by the pupil position detection means and the standard position of the pupil on which the image light reflected in the standard shape by the reflective surface is incident, the reflective surface is changed from the standard shape. The image display apparatus according to claim 3, further comprising a standard voltage correction unit that corrects the standard voltage so as to be deformed into a target shape that causes the image light to enter the pupil. The image light emitting means includes a plurality of light sources that emit light beams having different wavelengths based on the image light, a combining means that combines a plurality of light beams emitted from the plurality of light sources, and a combining means that combines the light beams. Scanning means for two-dimensionally scanning the emitted light beam,
The reflection layer is configured by a dichroic mirror that reflects a light beam having a wavelength emitted from the plurality of light sources and transmits a light beam having another wavelength.
Both electrodes are formed of a conductive material having a high translucency for visible light,
The piezoelectric body is composed of a piezoelectric body that is highly transparent to visible light,
The image display device according to claim 3, wherein the substrate is configured by a substrate having high translucency with respect to visible light. One of the electrodes is composed of a plurality of spot electrodes,
The other electrode is opposed to the plurality of spot electrodes via the piezoelectric body, and is configured with a common electrode common to the plurality of spot electrodes,
The said control means controls the piezoelectric deformation of each electrode corresponding | compatible part with respect to each said spot electrode of the said piezoelectric body by applying the said voltage to these several spot electrodes. The image display device according to any one of 5. The image light emitting means includes scanning means for scanning the image light in a two-dimensional manner,
One of the electrodes is composed of a plurality of linear electrodes arranged parallel to each other along the piezoelectric body,
The other electrode is composed of a plurality of linear electrodes arranged so as to face the plurality of linear electrodes via the piezoelectric body and to be positioned so as to intersect the plurality of linear electrodes. And
The control means applies the voltage to the piezoelectric body through the plurality of linear electrodes, thereby performing piezoelectric deformation of each electrode corresponding portion with respect to each intersection of the plurality of linear electrodes of the piezoelectric body. The image display device according to claim 3, wherein the image display device is controlled. With timekeeping means,
The image display apparatus according to claim 2, wherein the pupil position detection unit detects the position of the pupil every time a predetermined time is measured by the timing unit. With operating means,
The image display apparatus according to claim 2, wherein the pupil position detection unit detects the position of the pupil based on an operation of the operation unit. The image light emitting means is configured to form and emit the image light for each frame of the video signal based on a video signal composed of a series of frames corresponding to the two-dimensional image,
The image display device according to claim 2, wherein the pupil position detection unit detects the position of the pupil in synchronization with each frame of the video signal. The reflecting means is
Forming the reflecting surface with a part of a spheroid having a first focal point for disposing the pupil of the eye and a second focal point for disposing the image light emitting means;
2. The image according to claim 1, wherein the deforming member deforms the reflecting surface so that the image light is incident on the pupil in accordance with a shift of the position of the pupil from the first focus. Display device.   The image display apparatus according to claim 7, wherein the reflection unit is formed in a Fresnel surface shape on the reflection surface. The deformable member includes a plate-like piezoelectric body that undergoes piezoelectric deformation, and both electrodes that are interposed so as to face each other across the piezoelectric body,
13. The image display device according to claim 11, wherein an electrode located on the opposite side of the reflecting surface with respect to the piezoelectric body among the electrodes is composed of a plurality of spot electrodes. In a reflecting mirror for an image display device that reflects image light scanned two-dimensionally toward the pupil of an observer's eye,
A reflective layer provided with a reflective surface that reflects the image light toward the pupil;
A reflecting mirror for an image display device, comprising: a deforming member provided on a side opposite to the image light incident side with respect to the reflecting layer to deform the reflecting layer. Emit image light corresponding to a two-dimensional image,
The image light is reflected on the reflecting surface toward the pupil of the observer's eye,
In the image display method in which the reflected image light is displayed on the retina of the eye and displayed as the two-dimensional image.
The reflection direction of the image light is controlled so that the image light reflected according to the position of the pupil and the incident position of the image light on the reflection surface is incident on the pupil. Display method.

Images