JP2005156979A - Image display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a miniaturized image display device because an image display device manufactured on the basis of conventional technology has structure in which an projection unit and a scanning mirror are furnished on the outer face of the temple of a spectacles type frame and does not sufficiently meet the need of miniaturization. <P>SOLUTION: The image display device 1 is provided with: a modulated light output part 9 which outputs modulated light H modulated with picture information; a first scanning part 11 which scans a reflection mirror with the modulated light H in a first direction; a second scanning part 13 which scans the reflection mirror with the modulated light H in a second direction orthogonal to the first direction; a relay optical system 12 provided between the first scanning part 11 and the second scanning part 13, wherein a picture is displayed by scanning the reflection mirror with the modulated light H, and wherein a front frame 3 and a spectacles type device frame body 2 mounted on the head part of a user of the apparatus by the temple 4 are provided and at least the relay optical system 12 is provided in the temple 4. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an image display device.

In general, an image display device displays an image on a screen or the like by scanning modulated light obtained by modulating light according to an image signal on a screen (Patent Document 1).
JP 2000-1111829 A

  FIG. 13 shows an image display device 100 described in Patent Document 1. This image display apparatus 100 includes a projection unit 103 and a scanning mirror 104 along the outer surface of the temple 102 of the apparatus frame 101 formed in the shape of glasses, and the modulated light H output from the projection unit 103 is scanned with the scanning mirror 104. Is reflected by the reflection mirror portion 105 of the apparatus frame 101 and enters the observer's eye 106.

  In the image display device 100 configured as described above, the modulated light H is scanned and reflected on the reflecting mirror portion 105 by controlling the swing of the scanning mirror 104 and controlling the direction of the scanning mirror 104. The modulated light H reflected from the mirror portion 105 is incident on the observer's eye 106 and scanned on the retina of the eye 106 to display an image.

  However, in the image display device 100 of the related art configured as described above, the projection unit 103 and the scanning mirror 104 are provided on the outer surface of the temple 102 of the eyeglass-shaped frame 101. It was not enough.

  The present invention has been made in view of the above-described prior art, and an object thereof is to provide a miniaturized image display device.

  The invention according to claim 1 is a modulated light output unit that outputs modulated light modulated by image information, a first scanning unit that scans the modulated light in a first direction, and the modulated light. A second scanning unit that scans in a second direction orthogonal to the first direction, and a relay optical system provided between the first scanning unit and the second scanning unit, and scans the modulated light to generate an image. An image display device configured to display a front frame and a spectacle-type device frame that is attached to the head of the user of the device by a crane, and at least the relay optical system is provided in the temple. It is characterized by that.

  According to a second aspect of the present invention, in the image display device according to the first aspect, the vine extends from the ear side of the user of the device to the eye side, and the relay optical system extends in the direction in which the vine extends. Along this, it is provided in the vine.

  According to a third aspect of the present invention, in the image display device according to the first or second aspect, at least one of the first scanning unit and the second scanning unit is provided in the temple. It is what.

  According to a fourth aspect of the present invention, in the image display device according to any one of the first to third aspects of the present invention, the vine has an ear hook portion that has a curved ear side, and the modulated The modulated light output port of the light output unit is provided in the ear hook unit, and the optical axis of the modulated light output from the modulated light output port passes through the ear hook unit and reaches the first scanning unit. It is a feature.

  According to a fifth aspect of the present invention, in the image display device according to any one of the first to third aspects, the modulated light is output in a direction substantially parallel to the optical axis of the relay optical system. As described above, the modulated light output port of the modulated light output unit is provided.

  According to a sixth aspect of the present invention, in the image display device according to the fifth aspect of the present invention, a wavefront curvature modulation unit is provided opposite to the modulated light output port, and the wavefront curvature modulation unit and the modulated light output port The modulated light output port and the wavefront curvature modulation section are arranged so that the central light beam between them is substantially parallel to the optical axis of the relay optical system.

  The invention according to claim 7 includes a modulated light output unit that outputs modulated light modulated according to image information, and a scanning unit that scans the modulated light, and scans the modulated light. An image display device for displaying an image, comprising: a reflection mirror that reflects the modulated light output from the modulated light output port of the modulated light output unit toward the scanning unit; and the modulated light output port The modulated light output port, the reflection mirror, and the scanning so that the optical axis of the modulated light output from the optical axis of the modulated light scanned by the scanning unit and the optical axis of the central light beam in the modulated light are substantially parallel to each other. The portion is arranged.

  According to an eighth aspect of the present invention, in the image display device according to the seventh aspect, the scanning unit includes a first scanning unit that scans the modulated light in the first direction, and the modulated light orthogonal to the first scanning unit. And a second mirror that scans in the direction in which the reflecting mirror is reflected toward the first scanner.

  According to a ninth aspect of the present invention, in the image display device according to the seventh or eighth aspect of the present invention, a wavefront curvature modulation unit is provided opposite to the modulated light output port, and the reflection mirror is a modulated light output port. It is arranged between the wavefront curvature modulation unit.

  According to a tenth aspect of the present invention, in the image display device according to any one of the first to ninth aspects, a modulated light output unit is provided in the temple.

  According to an eleventh aspect of the present invention, in the image display device according to any one of the first to ninth aspects, a modulated light output unit is provided independently of the crane, and the modulated light output The unit and the crane are connected by an optical transmission unit.

  According to a twelfth aspect of the present invention, in the image display device according to the eleventh aspect of the present invention, it is provided with a drop-off prevention part for preventing the drop-off, and the optical transmission part is provided through the drop-off prevention part. Is.

  According to the image display device of the first aspect, since the relay optical system is disposed between the first scanning unit and the second scanning unit constituting the image display device, the light beam scanned by the first scanning unit Since the light is collected on the mirror of the second scanning unit, the deflection mirror of the second scanning unit can be reduced in size and can be sufficiently disposed in the vine. Accordingly, the entire image display apparatus can be reduced in size.

  According to the image display device of the second aspect, since it is provided in the temple along the extending direction of the temple of the eyeglass-type device frame, the relay is provided in the temple without deforming the temple to a large width. Optical system parts and the like can be provided.

  According to the image display device of the third aspect, it is possible to prevent damage or the like of at least one of the first scanning unit or the second scanning unit.

  According to the image display device of the fourth aspect, since the modulated light output port of the modulated light output portion is provided in the ear hook portion provided in the temple of the spectacle-type device frame, the shape of the temple is changed. It can be effectively used to reduce the size.

  According to the image display device of the fifth aspect, since the modulated light is output from the modulated light output unit in a direction substantially parallel to the optical axis of the relay optical system provided in the crane, The width can be narrow.

  According to the image display device of the sixth aspect, since the optical axis of the optical path between the modulated light output port and the wavefront curvature modulator is parallel to the optical axis of the relay optical system, the width of the entire device is narrowed. Can be formed.

  According to the image display device of claim 7, the optical axis of the modulated light output from the modulated light output port of the modulated light output unit, and the light of the central light beam in the modulated light scanned by the scanning unit Since the optical component is arranged so that the axis is substantially parallel, the overall width of the apparatus can be narrowed to reduce the size.

  According to the image display device of the eighth aspect, since the scanning unit includes the first scanning unit and the second scanning unit, the image can be displayed two-dimensionally.

  According to the image display device of the ninth aspect, in addition to having the first scanning unit and the second scanning unit, the width of the image display device capable of displaying the perspective of the image is provided by including the wavefront curvature modulation unit. Can be narrow.

  According to the image display device of the tenth aspect, since the modulated light output unit is provided in the temple, there is no possibility that the modulated light output unit touches the device user and there is no risk of damage.

  According to the image display device of the eleventh aspect, since the modulated light output unit is provided at a place other than the crane, the crane is reduced in weight.

  According to the image display device of the twelfth aspect, since the drop prevention unit is provided, there is no risk that the image cover device will drop off from the user of the device, and light that transmits the modulated light supplied to the scanning unit. Since the transmission unit is provided through the drop-off prevention unit, the optical transmission unit is not exposed to the outside and may not be damaged, and the presence of the optical transmission unit does not interfere with the user of the apparatus.

  1 to 4 show a first embodiment of an image display device 1 according to the present invention. As shown in FIG. 1, the image display device 1 has a glasses-type device frame 2. The spectacle-type device frame 2 is formed into a so-called spectacle-type by including a front frame 3 and a temple 4 connected to both ends of the front frame 3. FIG. 1 illustrates only a portion corresponding to one of the left and right eyes. The temple 4 has a connecting portion 5 that is connected to the front frame 3 so as to be foldable and extendable on the eye side of the apparatus user. The crane 4 extends from the ear side of the apparatus user toward the eye side, that is, toward the front frame 3 side. The eyeglass-type device frame 2 is formed in the eyeglass shape in this way, so that the device user can attach it to the head by the same way of wearing as the eyeglasses.

  In addition to the above-described eyeglass-type device frame 2, the image display device 1 includes a modulated light output system 6 that outputs modulated light, and a scanning system 7 that scans the modulated light on the reflection mirror 3 a of the front frame 3. And.

  A reflection mirror 8 is provided between the modulated light output system 6 and the scanning system 7. The optical axis K1 of the optical path of the modulated light output system 6 and the optical axis K2 of the central light beam of the scanning system 7 are substantially parallel, and the modulated light traveling in the modulated light output system 6 is reflected. It is guided into the scanning system 7 by the mirror 8.

  As a mode for displaying an image, the modulated light scanned by the reflecting mirror 3a is reflected by the reflecting mirror 3a and is scanned on the retina of the user's eye to display the image.

  The modulated light output system 6 includes a modulated light output unit 9 and a collimating lens 10. The scanning system 7 includes a first scanning unit 11, relay optical systems 12 and 12, and a second scanning unit 13.

  The modulated light output unit 9 is an optical device that outputs light as modulated light by modulating light with an image signal G supplied from an external device. The modulated light is output from the modulated light output port 9a of the modulated light output unit 9 in a direction parallel to the optical axis K2 of the scanning system 7. The collimating lens 10 is an optical device that converts the modulated light output from the modulated output port 9a into parallel light.

  The first scanning unit 11 is an optical device that scans modulated light in the first direction. Here, the first direction corresponds to the horizontal direction, for example. The relay optical systems 12 and 12 are configured by arranging a plurality of convex lenses in parallel. The relay optical systems 12 and 12 are optical devices that guide the modulated light scanned in the first direction by the first scanning unit 11 to the second scanning unit 13. The second scanning unit is an optical device that scans the modulated light in the second direction. Here, the second direction is a direction orthogonal to the first direction described above, and corresponds to, for example, a vertical direction.

  The scanning system 7 is provided in the temple 4 of the glasses-type device frame 2. The first scanning unit 11, the relay optical systems 12, 12, and the second scanning unit 13 constituting the scanning system 7 are along the extending direction of the temple 4, that is, from the ear side to the eye side of the apparatus user. Although arranged in the temple 4 in order, at least only the relay optical systems 12 and 12 may be provided in the temple 4, or in addition to the relay optical systems 12 and 12, the first scanning unit 11 or the second scanning. At least one of the portions 13 may be provided in the temple 4. Further, the modulated light output system 6 may be provided in the temple 4 or along the side of the temple 4. As described above, various aspects are assumed as the configuration in which the optical component including the relay optical systems 12 and 12 is provided in the temple 4, but as one aspect, the temple 4 is formed by a hollow tube, It is conceivable that an optical component is disposed in the hollow of the temple 4 and an irradiation port for modulated light output from the second scanning unit 13 disposed in the temple 4 is drilled in the temple 4.

  Next, a specific configuration of the modulated light output unit 9 will be described with reference to FIG. The modulated light output unit 9 includes image signal processing means 14 to which image information G from an external device (not shown) is input, a light source 15, and a light source driver 16. The image signal processing means 14 outputs an intensity modulation signal to the light source driver 16 that drives the light source 15 based on the image signal G supplied from an external device. The emitted light from the light source 15 whose intensity is modulated by the intensity modulation signal is output from the modulated light output port 9a shown in FIG.

  Next, a specific configuration of the first scanning unit 11 will be described with reference to FIG. Specifically, the first scanning unit 11 is configured by a scanning mirror. The first scanning unit 11 is rotatably provided by a rotation axis L1 extending perpendicularly to the paper surface of FIG. The first scanning unit 11 scans the modulated light in a direction corresponding to the rotational position of the first scanning unit 11.

  Next, a specific configuration of the second scanning unit 13 will be described with reference to FIG. Specifically, the second scanning unit 13 includes a scanning mirror. The second scanning unit 13 is rotatably provided by the rotation axis L2. The second scanning unit 13 scans the modulated light in a direction corresponding to the rotational position of the second scanning unit 13.

  Next, the operation of the image display apparatus configured as described above will be described. When the image display device 1 is not used, the temple 4 of the glasses-type device frame 2 is folded with respect to the front frame 3 and carried. In this state, like the relay optical systems 12 and 12 of the scanning system 7, the optical parts provided in the temple 4 are not exposed to the outside of the temple 4, so that they are damaged by the carrying or the carrying Does not get in the way.

  On the other hand, when the image display device 1 is used, the temple 4 of the glasses-type device frame 2 is extended with respect to the front frame 3 and is mounted on the head of the user of the device in the same manner as the glasses. Thus, in a state where the apparatus user wears the spectacle-type apparatus frame 2 on the head, the optical components provided in the temple 4 such as the relay optical systems 12 and 12 of the scanning system 7 are Since it is not exposed to the outside of the temple 4, it is not damaged during use of the device and does not interfere with the user of the device.

  When the apparatus user turns on the power (not shown) of the image display apparatus 1 and operates the image display apparatus 1, the modulated light output unit 9 generates light based on the image signal G input from the external device. As shown in FIG. 3, modulated light H is output from the modulated light output port 9a. The modulated light H is converged on the reflecting mirror 8 by the collimating lens 10 and reflected toward the first scanning unit 11 by the reflecting mirror 8. The modulated light H is scanned in the first direction by the first scanning unit 11. Thereafter, the modulated light H is guided to the second scanning unit 13 by the relay optical systems 12 and 12 and scanned in the second direction by the second scanning unit 13. Thus, the modulated light H scanned in the first direction by the first scanning unit 11 and scanned in the second direction by the second scanning unit 13 is, for example, on the reflection mirror 3 a provided in the front frame 3. Etc. are scanned to display an image on the reflection mirror 3a.

  By the way, in the invention described in Patent Document 1 (Japanese Patent Application Laid-Open No. 2000-1111829), as shown in FIG. 4, a relay optical system is provided between the first scanning unit 104 (a) and the second scanning unit 104 (b). Since the modulated light H scanned by the first scanning unit 104 (a) spreads in the path reaching the second scanning unit 104 (b), the scanning mirror of the second scanning unit 104 (b) is not provided. Therefore, the scanning mirror of the second scanning unit 104 (b) is inevitably enlarged. As described above, since the scanning mirror of the second scanning unit 104 (b) is enlarged, the scanning mirror of the second scanning unit 104 (b) cannot be driven smoothly, or the second scanning unit 104 (b) The scanning mirror is easy to touch the user of the apparatus, and may interfere with the apparatus user.

  However, in the image display device 1 according to the first embodiment of the present invention shown in FIG. 1, the relay optical system 12, between the first scanning unit 11 and the second scanning unit 13 constituting the image display device 1, 12 is arranged, the light beam scanned by the first scanning unit 11 is collected on the mirror of the second scanning unit 13, so that the deflection mirror of the second scanning unit 13 can be reduced in size, and the apparatus frame body It is possible to arrange in the two vines 4 sufficiently. Therefore, the entire image display device 1 can be reduced in size. As described above, since the second scanning unit 13 can be reduced in size, the second scanning unit 13 can be driven smoothly. Further, if the second scanning unit 13 is provided outside the temple 4. Even if it exists, there exists an effect that the possibility that the 2nd scanning part 13 may contact an apparatus user decreases, and the possibility that an apparatus user will get in the way decreases.

  FIG. 5 shows a second embodiment of the present invention. The feature of the second embodiment is that the position of the reflecting mirror 8 is moved to the front frame 3 side of the apparatus frame 2, that is, the eye side of the apparatus user, as compared with the first embodiment. The incident angle α ′ of the modulated light incident on the one scanning unit 11 is smaller than the incident angle α shown in the first embodiment.

  Next, based on FIG. 6, as described above, the operation and effect based on the fact that the incident angle α ′ in the second embodiment is smaller than the incident angle α in the first embodiment will be described. As in the second embodiment, the modulated light H (indicated by a solid line in FIG. 6) is incident on the first scanning unit 11 at an incident angle α ′, and the irradiation surface of the modulated light H is denoted by S ′. When the modulated light H (indicated by a two-dot chain line in FIG. 6) enters the first scanning unit 11 at an incident angle α as in the first embodiment, the irradiation surface of the modulated light H is denoted by S. Since the incident angle α ′ of the second embodiment is smaller than the incident angle α of the first embodiment, the irradiation surface S ′ of the second embodiment is narrower than the irradiation surface S of the first embodiment. For this reason, the 1st scanning part 11 of 2nd Embodiment can be formed smaller than the 1st scanning part 11 of 1st Embodiment. Therefore, the first scanning unit 11 of the second embodiment can be driven more smoothly than the first scanning unit 11 of the first embodiment, and the entire image display device 1 can be downsized.

  FIG. 7 shows a third embodiment of the present invention. The feature of the third embodiment is that a wavefront curvature modulation unit 31 is provided opposite to the modulated light output port 9a of the modulated light output unit 9, and the modulated light output port 9a of the modulated light output unit 9 and the wavefront curvature are provided. A beam splitter 32 is arranged between the modulation unit 31 and the optical axis K3 of the optical path between the modulated light output port 9a and the beam splitter 32 is set to the optical axis K2 of the central beam in the scanning system 7. The point is substantially parallel. The wavefront curvature modulation unit 31 includes a movable mirror 33 and a convex lens 34. The wavefront curvature modulation unit 31 is an optical device that adjusts the degree of diffusion of the modulated light by moving the movable mirror 33 closer to or away from the convex lens 34 by separately provided driving means. That is, when the movable mirror 33 is positioned at the focal position of the convex lens 34, as shown in FIG. 8 (1), the modulated light H becomes parallel light and enters the eye M of the user of the apparatus. When the apparatus user recognizes the image as if it is present at the position P1, while the movable mirror 33 shown in FIG. 7 is positioned closer to the convex lens 34 than the focal position of the convex lens 34, FIG. As shown in (2), since the modulated light H becomes diffused light and enters the eye M of the user of the apparatus, an image exists at the position P2 that is the diffusion center of the modulated light H that has become the diffused light. The device user is made to recognize as if he / she did. As described above, by providing the wavefront curvature modulation unit 31 in addition to the first scanning unit 11 and the second scanning unit 13, it is possible to give a sense of perspective to the image or to display the image three-dimensionally.

  In the third embodiment configured as described above, the modulated light H output from the modulated light output unit 9 enters the wavefront curvature modulation unit 31 via the convex lens 10 and the beam splitter 32 as shown in FIG. To do. After the degree of diffusion of the modulated light H is adjusted by the wavefront curvature modulation unit 31, it is reflected by the beam splitter 32, enters the first scanning unit 11 and is scanned in the first direction, and the relay optical systems 12, 12. Then, after being scanned in the second direction by the second scanning unit 13, the reflection mirror 3a of the glasses-type device frame 2 is scanned, and an image is displayed three-dimensionally on the retina of the eye of the device user. A reflection mirror according to claim 9 is configured by the beam splitter 32.

  In the third embodiment configured as described above, even when the wavefront curvature modulation unit 31 is provided in the modulated light output system 6 to display an image three-dimensionally, the light in the optical path of the modulated light output system 6 Since the axis K3 and the optical axis K2 of the central light beam of the scanning system 7 are parallel, the modulated light output system 6 is provided in or along the temple 4 of the eyeglass-type device frame 2. Can be provided.

  FIG. 9 shows a fourth embodiment of the present invention. The feature of the fourth embodiment is that, compared with the first embodiment, the ear hooking portion 41 of the glasses-type device frame 2 is formed in a curved shape, and the bent portion 41a of the ear hooking portion 41 is subjected to the first scanning. The portion 11 is arranged, the modulated light output portion 9 is provided on the rear end side of the ear hook 41, and the reflection mirror 8 of the first embodiment is omitted.

  The operation of the image display device 1 according to the fourth embodiment configured as described above will be described with reference to FIG. 10. The modulated light H output from the modulated light output unit 9 is converged by the collimator lens 10 and then The light enters the first scanning unit 11 and is scanned in the first direction by the first scanning unit 11. Thereafter, the image is scanned in the second direction by the second scanning unit 13 via the relay optical systems 12 and 12, and the reflection mirror 3a of the glasses-type device frame 2 is scanned to display an image.

In the image display device 1 according to the fourth embodiment configured as described above, the first scanning unit 11 is installed on the bending portion 41a of the glasses-type device frame 2, and therefore the shape of the temple 4 is effectively used. be able to. In addition, as shown in FIG. 10, the modulated light H output from the modulated light output unit 9 is incident on the first scanning unit 11 obliquely from the front, and is incident on the first scanning unit 11. α ″ is larger than the incident angle α of the first embodiment, but since the relay optical systems 12 and 12 are provided between the first scanning unit 11 and the second scanning unit 13, the first scanning unit. 11 can be collected by the second scanning unit 13, the second scanning unit 13 can be reduced in size, and can be disposed in the temple 4 sufficiently. Therefore, the entire image display device 1 can be reduced in size.

  FIG. 11 shows a fifth embodiment. The feature of the fifth embodiment is that a modulated light output unit 9 is separately provided outside the spectacle-type device frame 2, and the modulated light H output from the modulated light output unit 9 is converted into light such as an optical fiber. The transmission unit 51 leads to the rear end of the curved ear hook 41 of the glasses-type device frame 2 to irradiate the first scanning unit 11. In such a configuration, since the modulated light output unit 9 is not provided in the spectacle-type device frame 2 itself, the spectacle-type device frame 2 is reduced in weight, and the user of the image display device 1 of the apparatus user. Usability is improved.

  Next, a specific configuration of the modulated light output unit 9 will be described. The modulated light output unit 9 includes an image signal processing unit 52 to which image information G from an external device (not shown) is input, a red light source 53, a green light source 54, a blue light source 55, a red light source driver 56, and a green light source driver 56. A light source driver 57, a blue light source driver 58, collimating lenses 59, 60, 61, wavelength selective mirrors 62, 63, 64, and a focus lens 65 are provided. Then, the image signal processing means 52 is based on an image signal G supplied from an external device, and a red light source driver 56, a green light source driver 57, and a blue light source driver that respectively drive a red light source 53, a green light source 54, and a blue light source 55. 58 outputs an intensity modulation signal. Light emitted from the red light source 53, the green light source 54, and the blue light source 55 is formed into substantially parallel rays by collimating lenses 59, 60, 61, and then combined by the wavelength selective mirrors 62, 63, 64. Through the focus lens 65, modulated light H is output from the modulated light output port 9a.

  FIG. 12 shows a sixth embodiment. A feature of the sixth embodiment is that a drop-off prevention unit 71 is provided to prevent the eyeglass-type device frame 2 from dropping off from a device user. The drop-off prevention unit 71 is provided with the optical transmission unit 51 of the fifth embodiment. It is in the point provided. As the shape of the drop-off prevention unit 61, for example, a device that can be hooked on a part of the body such as a neck of a device user or a belt or a band that is fastened to the back of the wearer's head Any shape can be used, and the shape is not limited.

It is a partial top view of an image display apparatus. (First embodiment) It is a block diagram of the modulated light output part which comprises some image display apparatuses. (First embodiment) It is explanatory drawing explaining the effect | action of an image display apparatus. (First embodiment) It is a partial block diagram of the image display apparatus by a prior art used in order to demonstrate the effect | action of an image display apparatus. It is a partial top view of an image display apparatus. (Second Embodiment) It is explanatory drawing explaining an effect | action of the image display apparatus of 2nd Embodiment. (Second Embodiment) It is a partial top view of an image display apparatus. (Third embodiment) FIG. 10 is an explanatory diagram for explaining the operation of a wavefront curvature modulation unit that constitutes a part of the image display device. (Third embodiment) It is a side view of an image display apparatus. (Fourth embodiment) It is explanatory drawing explaining an effect | action of the image display apparatus of 4th Embodiment. (Fourth embodiment) It is a side view of an image display apparatus. (Fifth embodiment) It is a side view of an image display apparatus. (Sixth embodiment) It is a perspective view of an image display device. (Conventional technology)

Explanation of symbols

1 image display device 2 device frame 3 front frame 4 crane 8 reflecting mirror 9 modulated light output unit 9a modulated light output port 11 first scanning unit 12 relay optical system 13 second scanning unit 31 wavefront curvature modulation unit 41 ear hook Part 51 optical transmission part 71 drop prevention part H modulated light

Claims (12)

A modulated light output unit for outputting modulated light modulated by image information, a first scanning unit for scanning the modulated light in a first direction, and a second direction orthogonal to the first direction for the modulated light An image display device comprising: a second scanning unit that scans the light beam; and a relay optical system provided between the first scanning unit and the second scanning unit, and scanning the modulated light to display an image. Because
An image display device comprising: a front frame; and a spectacle-type device frame that is attached to the head of the user of the device by a crane. At least the relay optical system is provided in the crane.   2. The crane is extended from the ear side to the eye side of the user of the apparatus, and the relay optical system is provided in the temple along the extending direction of the crane. The image display device described in 1.   The image display device according to claim 1, wherein at least one of the first scanning unit and the second scanning unit is provided in the temple.   The crane has an ear hooking portion formed in a curved shape on the ear side, and a modulated light output port of the modulated light output portion is provided in the ear hooking portion, and is output from the modulated light output port. 4. The image display device according to claim 1, wherein an optical axis of the modulated light passes through the ear hook and reaches the first scanning unit. 5.   The modulated light output port of the modulated light output unit is provided so that the modulated light is output in a direction substantially parallel to the optical axis of the relay optical system. Item 4. The image display device according to any one of Items 3 to 3.   A wavefront curvature modulation unit is provided opposite to the modulated light output port, and an optical path between the wavefront curvature modulation unit and the modulated light output port is substantially parallel to the optical axis of the relay optical system. The image display apparatus according to claim 5, wherein a modulated light output port and a wavefront curvature modulation unit are arranged. An image display device that includes a modulated light output unit that outputs modulated light modulated in accordance with image information and a scanning unit that scans the modulated light, and displays the image by scanning the modulated light. And
A reflection mirror that reflects the modulated light output from the modulated light output port of the modulated light output unit toward the scanning unit, and an optical axis of the modulated light output from the modulated light output port; The modulated light output port, the reflection mirror, and the scanning unit are arranged so that the optical axis of the central light beam in the modulated light scanned by the scanning unit is substantially parallel. An image display device. The scanning unit includes a first scanning unit that scans modulated light in a first direction, and a second scanning unit that scans modulated light in a direction orthogonal to the first scanning unit,
The image display apparatus according to claim 7, wherein the reflection mirror is reflected toward the first scanning unit.   The wavefront curvature modulation part is provided facing the modulated light output port, and the reflection mirror is arranged between the modulated light output port and the wavefront curvature modulation part. The image display device described.   The image display apparatus according to claim 1, wherein the modulated light output unit is provided in the temple.   The modulated light output unit is provided independently of the crane, and the modulated light output unit and the crane are connected by an optical transmission unit. The image display device according to claim 1.   12. The image display device according to claim 11, further comprising a drop-out prevention unit for preventing the drop-out, wherein the optical transmission unit is provided through the drop-out prevention unit.

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