JP2003315725A - Image display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image display device which makes images distinctly observable. <P>SOLUTION: The image display device 1 projects the video of a video plate 10 to the retina 16 of an eyeball 7. The display device has a light source 8, a lens array 9 for diffusing the light emitted from the light source, the video plate 10 for transmitting the light diffused by the lens array, and a lens 11 for converging the light transmitted through the video plate and sending the light to the eyeball. According to the display device, the light reflected from the light source 8 is diffused to the entire direction by a convex lens 13 and is projected to the video plate and therefore the image can be recognized even if the pupil is moved to some extent and if the line of vision is largely moved, the image can no longer be recognized. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an eyeball projection type image display device for directly projecting a light flux transmitted through a video plate onto the retina of a wearer. The present invention also relates to a portable eyeglass-mounted or head-mounted eye-projection image display device.

[0002]

2. Description of the Related Art FIG. 1 shows an image display device of an eyeball projection type.
The one including the optical system shown in FIG.
No. 818 is proposed. The optical system 30 of this image display device is held in front of the wearer's eyes by a frame (not shown), and a plurality of components arranged toward the wearer's eyeball 31, that is, a point light source 32 and a transmission plate which is an image plate. The liquid crystal panel 33 and the eyepiece lens 34 are provided. In the image display device having such a configuration, the light emitted from the point light source 32 passes through the liquid crystal panel 33. An image or an image formed by the light transmitted through the liquid crystal panel 33 is imaged on the pupil 35 by the eyepiece lens 34 and projected onto the retina 37 via the crystalline lens 36. As described above, in this image display device, the point light source 32 is configured to form an image on the pupil 35, and the directivity of the light flux is good. Further, the image on the liquid crystal panel 33 can be clearly observed regardless of whether the wearer 31 is nearsighted or farsighted. On the other hand,
Even if the wearer 31 slightly deviates his or her eyes from the optical system 30, the luminous flux is eclipsed by the iris and the image cannot be observed. For example, in the case of a normal adult, the pupil diameter in a dark place is about 7 mm, so if the pupil 35 moves about ± 3.5 mm or more, the image cannot be observed. Further, since the pupil diameter is about 4 mm in a bright place, the image cannot be observed when the pupil 35 moves about ± 2 mm.

On the other hand, a structure has been proposed in which a surface light source is arranged in close contact with a liquid crystal panel. With this configuration, the light transmitted through the liquid crystal panel is radiated in all directions, and a light beam having no directivity is guided to the pupil. Therefore, the angle component of the light passing through the pupil is wide. Therefore, the aberration of the optical system that projects the light beam on the pupil must be corrected, and the configuration of the optical system becomes extremely complicated. Also, the wearer needs to focus the image on the retina with his own crystalline lens. However, since the distance between the liquid crystal panel and the pupil is limited, it is necessary for people with poor eyesight to wear glasses. Further, even if the wearer diverts his / her line of sight from the liquid crystal panel to observe the outside world, the light transmitted through the liquid crystal panel enters the wearer's pupil, so that the appearance of the outside world cannot be observed well. Furthermore, since it is necessary to illuminate the liquid crystal panel with a light amount larger than that required for observation, power consumption increases.

Further, in JP-A-200-249977, as shown in FIG. 11, a condenser lens 4 which is a condenser lens is provided between an LED 41 as a light source and an eyeball 42.
3, an image display device in which a light diffusing plate 44, a liquid crystal panel 45, and an eyepiece lens 46 are arranged is disclosed. According to this image display device, the light emitted from the LED 41 is converted into substantially parallel light by the condenser lens 43. Next, the parallel light is diffused by the diffusion plate 44 and then enters the liquid crystal panel 45 to project the image displayed on the liquid crystal panel 45. Subsequently, the image is made incident on the retina by the eyepiece lens 46 and then projected onto the retina via the crystalline lens. As described above, according to this image display device, light is incident on each point of the liquid crystal panel 45 from various directions. Therefore, since the light passing through each point of the liquid crystal panel 45 includes various directional components, even if the position of the eyeball deviates slightly to the left or right or up and down, the brightness unevenness does not occur. However, it is difficult to control the diffusivity of the diffusing plate 44, and since the diffusing plate 44 is formed by mixing a diffusing substance such as metal powder into glass or plastic, the loss of light is large. There is.

[0005]

Therefore, the present invention is
It is intended to provide an image display device having a simple structure in which a wearer can observe a clear image without adjusting the crystalline lens by himself, and the wearer can observe the external environment well by moving the line of sight. is there.

[0006]

In order to achieve such an object, the present invention diffuses a light source and light emitted from the light source to an image display device for projecting an image of an image board on the retina of an eyeball. A lens array, a video plate that transmits the light diffused by the lens array, and a lens that converges the light that has passed through the video plate and sends it to the eyeball.

In another form of this image display device, the lens array is formed of a light-transmitting substrate, and spherical convex lenses are formed at predetermined intervals on a light-transmitting surface of the substrate. It is characterized by being

In another form of the image display device, the lens array is formed of a light-transmissive substrate, and cylindrical convex lenses are formed on the light-transmissive surface of the substrate at predetermined intervals. It is characterized by being

In another form of the image display device, the image plate has a light-shielding plate formed with a light-transmitting hole for transmitting light.
It is characterized in that the convex lenses are formed at intervals so that the positions where the respective lights of the convex lenses collected respectively correspond to the positions of the light transmitting holes.

Further, in another form of the image display device, when the light transmitted through the image plate is sent to the eyeball by the lens, the light is about 1 to 2 times the size of the pupil on the pupil plane. It is characterized in that the curvature of the convex lens is determined so as to be converged to the above.

Still another aspect of the image display device is as follows.
When sending the light transmitted through the image plate to the eyeball with the lens,
The size of the light source and the arrangement of the light source / lens array / lens are determined so that the light is converged on the pupil plane to a size about 1 to 2 times the size of the pupil. Is characterized by.

Another image display device according to the present invention is an image display device for projecting an image of a video plate on the retina of an eyeball,
A light source, a curved mirror array that diffuses the light emitted from the light source, an image plate that transmits the light diffused by the curved mirror array, and a lens that converges the light transmitted through the image plate and sends it to the eyeball. It is characterized by including.

In another form of this image display device, the curved mirror array is formed by mirrors, and spherical concave curved surfaces are formed at predetermined intervals on the reflecting surface of the mirrors. Characterize.

In another form of the image display device, the curved mirror array is formed by a mirror, and a cylindrical concave curved surface is formed on the reflecting surface of the mirror at a predetermined interval. It is characterized by

Further, according to another aspect of the image display device, when the light transmitted through the image plate is sent to the eyeball by the lens, the light is about 1 to 2 times the size of the pupil on the pupil plane. It is characterized in that the curvature of the concave curved surface is determined so that the concave curved surface is converged.

Still another aspect of the image display device is as follows.
When sending the light transmitted through the image plate to the eyeball with the lens,
The size of the light source and the arrangement of the light source, the curved mirror array, and the lens are determined so that the light is converged on the pupil plane to a size about 1 to 2 times the size of the pupil. It is characterized by

An image display apparatus according to another aspect of the present invention is characterized in that, in the above-mentioned image display apparatus, the light source and the pupil position of the eyeball have a substantially conjugate relationship.

Further, it is characterized in that the light source is a light source which emits white light.

Further, it is characterized in that the light source is a combination of light sources which emit red, green and blue lights.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A plurality of embodiments of the present invention will be described below with reference to the accompanying drawings. In the drawings showing the embodiments described below, the same or corresponding members or portions are designated by the same reference numerals. In addition, in order to facilitate understanding of the invention, in the following description, terms indicating directions (for example, “up”, “down”, “right”,
Although "left" and terms including them are used, the invention described in the claims is not limited to the meanings of the terms.

Embodiment 1. As shown in FIG. 1, in an eyeball projection type image display device 1 according to the present invention, a person (an image observer or a wearer 2) detachably wears on the head to observe an image (moving image or still image). In the head-mounted image display device or the spectacles-type image display device, an optical unit 3 for projecting an image on the eyeball of the wearer 2 and a head of the wearer 2 for stably supporting the optical unit 3 in front of the eye. And a video signal transmission unit 5 for transmitting a video signal to the optical unit 3.
The video signal transmitter 5 is built in the frame 4. However, the configuration of the frame 4, the arrangement of the video signal transmission unit 5, and the like are merely examples, and the present invention is not limited to the configuration illustrated.

The internal structure of the optical section 3, which is the most characteristic feature of the present invention, is shown in FIG. As shown in the figure, in the housing 6 (see FIG. 1) of the optical unit 3, the light source 8, the lens array 9, the transmissive image plate 10, and the eyepiece lens 11 are directed toward the right or left eyeball 7 of the wearer 2. Is built in.

Although various light emitting devices can be used as the light source 8, in the present embodiment, a light emitting diode (LED) is used.
Is used. As the light emitting diode, a diode emitting ultraviolet light or blue light can be used. The light source 8 may be any one that emits light from a limited area. The lens array 9 is composed of a transparent glass or plastic substrate 12 that transmits the light incident on the lens array 9 with a minimum attenuation rate. Then, one surface (light transmitting surface) of the substrate 12 has an orthogonal 2 parallel to the surface.
A spherical surface (convex lens 13) protruding outward is integrally formed with a predetermined pitch in the direction, preferably without a gap. As the transmissive image panel 10, a transmissive liquid crystal panel is used. The liquid crystal panel is composed of a full-color liquid crystal panel or a monochrome liquid crystal panel, is electrically connected to the video signal transmitting unit 5, and displays an image based on the video signal output from the video signal transmitting unit 5. I am doing it. As the eyepiece lens 11, a spherical or aspherical convex lens is usually used. The eyepiece lens 11 may be formed of a single lens, but may be a combined lens formed by combining a plurality of lenses.

As shown in FIG. 1, the light source 8, the lens array 9, the transmissive image plate 10, and the eyepiece lens 11 are attached to the eyepiece lens 1 with the wearer 2 wearing the image display device 1.
1, the light source 8 and the pupil 14 of the wearer 2 are arranged so as to have a conjugate relationship. Also, the lens array 9 and the image board 1
The distance from 0 is such that the light transmitted through each convex lens 13 is not condensed on the image display surface of the transmissive image plate 10 or in the vicinity thereof and is incident on the image display surface of the image plate 10 in a sufficiently divergent state. It is preferable to adjust.

According to the display device having the above structure, the light emitted from the light source 8 is projected on the lens array 9. The lens array 9 receives the light received from the light source 8 and is a convex lens 1 on one side.
It is diffused in all directions by 3 and projected on the image board 10. An image is transmitted from the image signal transmitting unit 5 to the image board 10, and the image is displayed on the liquid crystal panel. This image is projected onto the eyepiece lens 11 by the light sent from the lens array 9, converges on the pupil 14 of the wearer 2 or the vicinity thereof, and then is projected onto the retina 16 by the lens 15.

As described above, according to the image display device 1 of the present embodiment, the image displayed on the image plate 10 is converged on the pupil 14 or in the vicinity thereof to be in the Maxwell view state.
Even the wearer 2 with myopia or hyperopia can clearly observe the image without adjusting the lens 15 by himself. Naturally, a person who normally wears glasses can clearly observe an image regardless of whether or not they wear glasses. In addition, the range that can be seen when the line of sight is moved can be accurately limited. Then, when the image is viewed with the eye of the person who wears the image display device 1 while watching the view with the eye of the person who does not wear the image display device 1, these scenery and the image can be reasonably overlapped.

Further, since the lens array 9 is made of a transparent material, it is possible to minimize the loss of light transmitted through the lens array 9.

Further, since the convex lenses 13 of the lens array 9 are two-dimensionally arranged, the size of the convex lenses 13 and the curvature thereof are adjusted to adjust the size of the eyeball 7 as shown in FIG.
It is possible to design the size of the light beam 17 projected onto the range from the size [a] of the pupil 14 to the size [A] about twice as large as the size of the pupil 14 at the pupil position. Therefore, even if the line of sight moves
The wearer 2 can recognize the image well.

Furthermore, if the substrate 12 of the lens array 9 is a rectangle, in particular, a substrate that is long in the left-right direction of the wearer 2 and short in the vertical direction, it converges on the pupil 14 or in the vicinity thereof, as shown in FIG. The light flux 18 has an elliptical shape that is long in the horizontal direction and short in the vertical direction. By appropriately designing the size and curvature of the convex lens 13, as shown in the figure, the major axis width [B] of the elliptic beam 18 is approximately twice the pupil diameter [a] and the minor axis width [C]. Is approximately equal to the pupil diameter [a],
Even if the wearer 2 moves his or her line of sight to the left or right, the image can be clearly observed. On the other hand, when the wearer 2 slightly moves the line of sight up and down, the pupil 14 deviates from the light beam and the image cannot be observed. Therefore, as shown in FIG. 1, the wearer 2 can switch to a state of observing only the scenery of the outside world by slightly moving the line of sight up and down while observing the image while walking.

In the first embodiment, the convex lens 13 is formed on one surface of the lens array substrate 12 facing the image plate 10, but the convex lens 13 may be formed on the opposite substrate surface facing the light source 8. Good. If necessary, the convex lenses 13 may be formed on both surfaces of the lens array substrate 12. In this case, the curvature and the curvature of the convex lens 13 on one surface and the convex lens on the opposite surface may be the same,
It may be different.

Embodiment 2. In the first embodiment, the convex lens 13 is two-dimensionally arranged on one side or both sides of the lens array 9, but the convex lens may be formed by a cylindrical surface. Figure 5
More specifically with reference to (a) and (b), in the second embodiment, the substrate 20 of the lens array 19 is provided with the cylindrical convex lens 21 including a cylindrical portion extending in the vertical direction.
The wearer 2 is formed integrally with the wearer 2 in the left-right direction at a predetermined interval.

According to such a configuration, the lens array 9
The light incident on is hardly diffused in the vertical direction but largely diffused in the horizontal direction. Therefore, as shown in FIG.
Alternatively, the light flux 18 that converges in the vicinity thereof is long in the horizontal direction,
Draw a short ellipse in the vertical direction. Therefore, the wearer 2
Can see the image clearly even if the line of sight is moved left and right. Also, the wearer 2 can switch to a state in which only the external scenery is observed by simply moving the line of sight up and down.

Although the cylindrical convex lens 21 is formed on one surface of the lens array substrate 20 in the above-mentioned embodiment, the cylindrical convex lens 21 may be formed on the opposite substrate surface facing the light source 8. If necessary, the cylindrical convex lenses 21 may be formed on both surfaces of the lens array substrate 20. In this case, the size / curvature of the cylindrical convex lens 21 on one surface and the size / curvature of the cylindrical convex lens on the opposite surface may be the same or different.

In the first and second embodiments described above, a convex lens or a cylindrical convex lens is formed on one side or both sides of the lens array 9, but these may be concave lenses or cylindrical concave lenses.

As shown in FIG. 6, the image plate 10 is the light shield plate 2.
2 and the light-shielding plate 22 is formed with light-transmitting holes (or light-transmitting slits) 23 at predetermined intervals, the pitch of the light-transmitting holes 23 and the convex lens 13 and the cylindrical convex lens 21. Match the pitch, and use the lens array 9
The distance between the projection lens 12 and the projection plate 12 is set to be substantially the same as the focal length of the convex lens 13 or the cylindrical convex lens 21, and all the light transmitted through the convex lens 13 or the cylindrical convex lens 21 is collected in the light transmitting hole 23 and the light transmitting hole It is preferable to allow the light emitted from the light shielding portion 24 other than the light transmitting hole 23 to be minimized as much as possible while allowing the light to pass through.

Embodiment 3. FIG. 7 shows the configuration of the main part of the image display device according to the third embodiment. In this image display device, a mirror (curved surface mirror array) 25 is arranged between the light source 8 and the image plate 10 as a reflection type diffusion means. The mirror 25 is provided on one surface of the substrate 26 in two directions parallel to the surface (that is, the direction perpendicular to the drawing and the direction perpendicular to the drawing).
A spherical concave portion that is recessed inward is formed at a predetermined pitch, and the surface of the spherical concave portion is mirror-finished to form a spherical concave curved surface (spherical curved surface) 27.

According to the image display device having the above structure, the light emitted from the light source 8 is reflected by the concave curved surface 27 of the curved mirror array 25 and diffused in all directions. The diffused light is reflected by the eyepiece lens 11 in the image projected on the image board 10.
Is focused on the pupil 14 of the wearer 2 or in the vicinity thereof, and then is projected on the retina 16 by the crystalline lens 15.

Therefore, according to the image display device of the present embodiment, the same action and effect as those obtained by the image display device of the first embodiment can be obtained. In addition, since the light emitted from the light source 8 is incident on the image plate 10 with a minimum loss, the light emission amount of the light source can be minimized.

Fourth Embodiment In the third embodiment, the spherical concave curved surface 27 is two-dimensionally arranged on the reflecting surface of the curved mirror array 25, but as shown in FIGS. 8A and 8B, the substrate 27 of the curved mirror array 25 is arranged. A cylindrical concave curved surface 28 composed of a cylindrical portion extending in a direction perpendicular to the reflection surface is integrally formed at a predetermined interval in the left-right direction of the wearer 2.

According to such a configuration, the curved mirror array 2
The light entering 5 is hardly diffused in the vertical direction but largely diffused in the horizontal direction. Therefore, as shown in FIG.
The contour 13 of the light converging to 4 or its vicinity draws an ellipse that is long in the horizontal direction and short in the vertical direction. Therefore, the wearer 2 can clearly observe the image even when the line of sight is moved left and right. Also, the wearer 2 can switch to a state in which only the external scenery is observed by simply moving the line of sight up and down.

Although the point light source is used as the light source in the image display device described above, the light source 8 is not limited to the point light source, and may be a tube light source. The color (wavelength component) emitted by the light source is not particularly limited, but it is preferable to use a light source that emits white light (for example, white LED). Further, as shown in FIG. 9, the light source 8 is not limited to a single light source that emits a single color (wavelength), but may be a plurality of light sources that emit red, green, and blue colors. in this case,
It is possible to use a so-called sequential type liquid crystal panel capable of switching the liquid crystal display image in synchronization with the timing of switching the emission color.

[0042]

As is apparent from the above description, an image display device for projecting an image on a video board on the retina of an eyeball is provided.
An image display device including a light source, a lens array that diffuses the light emitted from the light source, an image plate that transmits the light diffused by the lens array, and a lens that converges the light transmitted through the image plate and sends it to the eyeball. According to this, a light source, a curved mirror array that diffuses the light emitted from the light source, an image plate that transmits the light diffused by the curved mirror array, and a lens that converges the light transmitted through the image plate and sends it to the eyeball. According to the image display device including the above, the diffusivity of the light transmitted through the image plate can be controlled by the specifications (shape, curvature, etc.) of the lens array or the curved mirror array. In addition, the image can be recognized even if the pupil is moved to some extent, and the image cannot be recognized if the line of sight is largely moved.Therefore, even when switching from the image recognition state to the non-recognition state, it is not necessary to detach the image display device from the front of the eye. It's convenient.

In particular, in the image display device in which the lens array is provided with the convex lens, the image plate has the light-transmitting hole through which the light is transmitted in the light-shielding plate, and the position where the light transmitted through each of the convex lenses is collected is transparent. According to the image display device in which the convex lenses are formed at intervals so as to correspond to the hole positions, all the light transmitted through the convex lenses can pass through the light-transmitting holes, and the light-shielding portion other than the light-transmitting holes can be used. The amount of shining light can be minimized.

Further, according to the image display device in which the lens array is formed by the cylindrical convex lenses or the cylindrical reflecting surfaces with a predetermined interval, the image can be recognized even if the pupil is moved left and right, If you move your eyes in that direction, you will not be able to recognize the image. Therefore, even when switching from the image recognition state to the non-recognition state, the image display device does not need to be detached from the front of the eye, which is more convenient.

In addition, when the light transmitted through the image plate is sent to the eyeball by the lens, the light is converged to a size of about 1 to 2 times the size of the pupil on the pupil plane so as to have a convex lens or a concave shape. According to the image display device in which the curvature of the reflecting surface is determined, and the image display device in which the size of the light source and the arrangement of the light source, the lens array, and the lens are determined as described above, the pupil is moved about the pupil diameter. The image never disappears.

Further, according to the image display device in which the light source and the pupil position of the eyeball are in a substantially conjugate relationship, the image is formed substantially on the pupil plane, so that the range in which the image can be recognized accurately when the pupil is moved is accurate. Can be limited.

Furthermore, according to the image display device, which is a light source and a light source that emits white light, since it is possible to illuminate with one light source, the number of parts can be reduced.

According to the image display device in which the light source is a combination of light sources emitting red, green and blue light, a field sequential type liquid crystal panel can be used.

[Brief description of drawings]

FIG. 1 is a perspective view showing a usage state of an image display device according to the present invention [FIG. 1 (a)], and a perspective view showing an appearance of the image display device [FIG. 1 (b)].

FIG. 2 is a side view showing the first embodiment of the optical system included in the image display device.

FIG. 3 is a front view showing a circular light beam projected on an eyeball.

FIG. 4 is a front view showing an elliptical light flux projected on an eyeball.

5A and 5B are a side view [FIG. 5 (a)] and a side view [FIG. 5 (b)] showing a configuration of an optical unit incorporated in the image display device according to the second embodiment.

FIG. 6 is an enlarged cross-sectional view of a lens array and a liquid crystal panel according to the second embodiment.

FIG. 7 is a side view showing a configuration of an optical unit incorporated in the image display device according to the third embodiment.

8A and 8B are a side view [FIG. 8A] and a plan view [FIG. 8B] showing a configuration of an optical unit incorporated in an image display apparatus according to a fourth embodiment.

FIG. 9 is a side view of an image display device including a light source of another form.

FIG. 10 is a front view showing a configuration of an optical system in a conventional image display device.

FIG. 11 is a front view showing the configuration of another optical system in the conventional image display device.

[Explanation of symbols]

1: Image display device 2: Wearer 3: Optical part 7: Eyeball 8: Light source 9: Lens array 10: Image board 11:
Eyepiece lens 13: Convex lens 21: Cylindrical convex lens 2
7: concave curved surface

Claims (14)

[Claims] 1. An image display device for projecting an image of an image board onto a retina of an eyeball, the light source, a lens array for diffusing light emitted from the light source, and a light diffused by the lens array. An image display device comprising: an image plate and a lens that converges light transmitted through the image plate and sends the converged light to an eyeball. 2. The lens array is formed of a light-transmissive substrate, and spherical convex lenses are formed on the light-transmissive surface of the substrate at predetermined intervals. 1. The image display device according to 1. 3. The lens array is formed of a light-transmitting substrate, and cylindrical convex lenses are formed at a predetermined interval on a light-transmitting surface of the substrate. The image display device according to item 1. 4. The light transmitting plate of the image plate is formed with a light transmitting hole for transmitting light, and the convex lenses are spaced so that the respective positions of the light passing through the convex lenses gather to correspond to the light transmitting hole positions. The image display device according to claim 2 or 3, wherein the image display device is formed with an opening. 5. When the light transmitted through the image plate is sent to the eyeball by the lens, the light is about 1-2 of the size of the pupil on the pupil plane.
The image display device according to claim 1, wherein a curvature of the convex lens is determined so as to be converged to a double size. 6. When the light transmitted through the image plate is sent to the eyeball by the lens, the light is about 1-2 of the size of the pupil on the pupil plane.
The image according to any one of claims 1 to 4, wherein the size of the light source and the arrangement of the light source, the lens array, and the lens are determined so as to be converged into a double size. Display device. 7. An image display device for projecting an image of an image board onto the retina of an eyeball, comprising a light source, a curved mirror array for diffusing light emitted from the light source, and a light diffused by the curved mirror array. An image display device comprising: a transmitting image plate; and a lens that converges light transmitted through the image plate and sends the converged light to an eyeball. 8. The curved mirror array is formed of mirrors, and spherical concave curved surfaces are formed at predetermined intervals on the reflecting surface of the mirrors. Image display device. 9. The curved mirror array is formed of mirrors, and cylindrical concave curved surfaces are formed at predetermined intervals on the reflecting surface of the mirrors. The image display device described. 10. When the light transmitted through the image plate is sent to the eyeball by the lens, the light is about 1 to about 1 of the size of the pupil on the pupil plane.
10. The image display device according to claim 7, wherein the curvature of the concave curved surface is determined so that the curvature is converged to double the size. 11. When the light transmitted through the image plate is sent to the eyeball by the lens, the light is about 1 to 1 times the size of the pupil on the pupil plane.
The size of the light source, so that it converges to twice the size,
The arrangement of the light source, curved mirror array, and lens is determined, and the image display device according to any one of claims 7 to 10. 12. The image display device according to claim 1, wherein the light source and the pupil position of the eyeball have a substantially conjugate relationship. 13. The image display device according to claim 1, wherein the light source is a light source that emits white light. 14. The light source is a combination of light sources which emit red, green and blue light.
The image display device according to any one of 1 to 12.