JP4022921B2 - Retina scanning display device - Google Patents

Description

  The present invention relates to a retinal scanning display device configured to display an image on a human retina.

Conventionally, as shown in Patent Document 1, a retinal scanning display device is known. The retinal scanning display apparatus according to the related art includes a modulated light output unit 100 and a scanning unit 101 as shown in FIG. The modulated light output unit 100 modulates laser light according to image information and outputs it as modulated light. The scanning unit 101 scans the modulated light on the human retina 102 and displays an image on the retina 102.
Patent 2874208

  However, since the conventional retinal scanning display device is installed on a table or the like, there is a problem that the retinal scanning display device can be used only at a specific place where the retinal scanning display device is installed.

  Accordingly, the present invention has been made in view of the above-described prior art, and it is an object of the present invention to provide a retinal scanning display device that can be used in a desired place by being mounted on the head and being portable. It is what.

  According to the first aspect of the present invention, there is provided a device frame that is worn on the head of a wearer, a modulated light output unit that outputs light as modulated light modulated according to image information, and the device frame. A scanning unit for scanning the modulated light to display an image on the retina of the wearer; and the modulated light output from the modulated light output unit provided in the device frame. A waveguide for transmitting to the scanning unit,
  The apparatus frame is formed into a spectacle shape having a front frame and a temple,
By providing a hinge portion between the front frame and the temple, the temple is connected to the front frame so that it can be bent and extended,
  The scanning unit is provided in the front frame,
  The waveguide is provided on the temple between the modulated light output part and the hinge part,
  A modulated light input unit for inputting modulated light transmitted by the waveguide to the scanning unit is provided in the front frame between the scanning unit and the hinge unit,
    With the vine extended, the end of the waveguide and the modulated input portion are brought into contact with the hinge portion to allow the modulated light to be incident from the waveguide to the modulated input portion.
  In the state where the temple is bent, the end of the waveguide and the modulated input portion are separated from each other so as to block the incidence of the modulated light from the waveguide to the modulated input portion. It is characterized by this.

  According to a second aspect of the present invention, in the retinal display device according to the first aspect, the waveguide is inserted into a temple insertion hole provided in the temple, and the modulated light input portion side end of the waveguide is The modulated light input section is inserted into the front frame insertion hole provided in the front frame, and retracted from the edge of the front frame insertion hole to the inside of the front frame insertion hole. The waveguide is inserted into the front frame insertion hole in a state where the crane is extended, contacts the modulated light input portion, and the waveguide is bent in the state where the waveguide is bent. It is characterized by being separated from the input unit.

  According to a third aspect of the present invention, in the retinal display device according to the first aspect, the modulated light input section is inserted into a front frame insertion hole provided in the front frame and protrudes from the front frame insertion hole. The waveguide is inserted into a temple insertion hole provided in the temple, and the modulated light input section side end of the waveguide is provided to recede from the edge of the temple insertion hole to the inside of the temple insertion hole. The modulated light input section enters the temple insertion hole in the state where the crane is extended, contacts the waveguide, and the modulated light input section is in the waveguide when the temple is bent. It is characterized by being separated from

  According to a fourth aspect of the present invention, in the retinal display device according to the first aspect, the modulated light emitted from the modulated light input portion side end of the waveguide leaks to the outside in a state where the temple is bent. The light-shielding part for preventing is provided.

  According to a fifth aspect of the present invention, in the retinal scanning display device according to any one of the first to fourth aspects, the hinge is provided between the front frame and the vine so that the vine is moved to the front. The hinge is connected to the frame so that it can be bent and extended, and an electrical switch is provided at the hinge, and when the crane is extended, the electrical switch is turned on to activate the modulated light output unit, while the crane is bent. In this state, the electrical switch is turned off to stop the operation of the modulated light output unit.

  According to a sixth aspect of the present invention, in the retinal scanning display device according to any one of the first to fourth aspects, the hinge is provided between the front frame and the vine so that the vine is in the front. The hinge is connected to the frame so that it can be bent and extended, and an electrical switch is provided at the hinge, and when the crane is extended, the electrical switch is turned on to activate the scanning unit, while the crane is bent. The electrical switch is turned off to stop the operation of the scanning unit.

  A seventh aspect of the present invention is the retinal scanning display device according to any one of the first to sixth aspects, wherein the light reflecting surface portion provided on the device frame body so as to face the wearer's eye. The scanning unit scans the modulated light with respect to the light reflecting surface.

  The invention according to claim 8 is the retinal scanning display device according to claim 7, wherein the light reflecting surface portion has an elliptical surface provided so as to face the wearer's eye, and the scanning light emitting portion of the scanning portion. Is disposed at one focal point of the elliptical surface, and the scanning unit scans the modulated light with respect to the elliptical surface and reflects the modulated light at the elliptical surface, thereby being positioned at the other focal point of the elliptical surface. In this case, an image is displayed on the eyes of the wearer.

  According to a ninth aspect of the present invention, in the retinal scanning display device according to any one of the first to eighth aspects, an insertion portion for inserting the waveguide into the device is provided in the temple. It is what.

  According to a tenth aspect of the present invention, in the retinal scanning display device according to any one of the first to ninth aspects, the vine is bent and extended from the connecting portion connected to the front frame and the connecting portion. And the waveguide is extended in the extending direction of the connecting portion and connected to the modulated light output portion, and the modulated light output portion is connected to the ear hook portion. It is characterized in that it is provided.

  According to an eleventh aspect of the present invention, in the retinal scanning display device according to any one of the first to ninth aspects, the vine is bent and extended from the connecting portion connected to the front frame and the connecting portion. And the waveguide is extended in the extension direction of the ear hook and connected to the modulated light output section, and the modulated light output section is connected to the ear hook section. It is provided in the hanging portion.

  According to the first aspect of the present invention, the hinge can be extended and folded with respect to the front frame by providing a hinge portion between the front frame of the apparatus frame and the temple. Therefore, when the retinal scanning display device is not used. Can be accommodated in a compact manner by folding the temple against the front frame.

  In the invention according to claim 2, in addition to the effect of the invention according to claim 1, when the crane is extended, the optical fiber comes into contact with the modulated light input portion in the front frame insertion hole. When folded, the waveguide is separated from the modulated light input section in the front frame insertion hole. For this reason, when the vine is folded, that is, when not in use, the waveguide is separated from the modulated light input section, and light does not leak outside from the scanning section.

  In the invention according to claim 3, in addition to the effects of the invention according to claim 1, when the crane is extended, the modulated light input portion abuts the optical fiber in the temple insertion hole, and the temple is folded. At this time, the modulated light input section is separated from the waveguide in the temple insertion hole. For this reason, when the vine is folded, that is, when not in use, the waveguide is separated from the modulated light input section, and light does not leak outside from the scanning section.

  In the invention according to claim 4, in addition to the effect of the invention according to claim 1, since the light-shielding portion is provided, the modulated light input portion side end portion of the waveguide is bent. The emitted modulated light can be prevented from leaking outside.

  In the invention described in claim 5, since the effect of the invention described in any one of claims 1 to 4 is achieved and the switch portion is provided in the hinge portion, the use of the retinal scanning display device is provided. When the vine is extended, the switch is turned on to operate the modulated light output unit, while the retinal scanning display device is folded when the retinal scanning display device is not used, so that the switch is turned off and modulated. Since the operation of the light output unit can be stopped, power saving of the retinal scanning display device when not in use can be achieved.

  In the invention described in claim 6, since the effect of the invention described in any one of claims 1 to 4 is achieved and the switch portion is provided in the hinge portion, the use of the retinal scanning display device is provided. When the vine is extended, the switch is turned on to operate the scanning unit, while when the retinal scanning display device is not used, the vine is folded to turn off the switch and operate the scanning unit. Since it can be stopped, it is not necessary to provide a separate switch for operating and stopping the modulated light output section, and the power saving of the retinal scanning display device when not in use can be achieved.

In the invention described in claim 7, in addition to the effects of the invention described in any one of claims 1 to 6, the modulated light output from the scanning unit is applied to the eyes of the wearer. Since the image is displayed on the retina after being reflected by the light reflecting surface provided so as to face, the wide area on the retina can be obtained by providing the light reflecting surface widely. The modulated light can be scanned in the range, and an image having a large angle of view can be displayed.

  In the invention according to claim 8, in addition to the effects of the invention according to claim 7, the light reflecting surface is formed in an elliptical shape, and the scanning unit is arranged at one focal point of the elliptical shape. Regardless of the position on the light reflecting surface, the modulated light output from the scanning unit can be incident on the wearer's eye located at the other focal point and display an image on the wearer's retina.

In the invention according to claim 9, in addition to the effect of the invention according to any one of claims 1 to 8, if the insertion portion is provided in the temple, the waveguide is formed in the temple. Therefore, it is possible to reduce the size.

In the invention described in claim 10, in addition to the effects of the invention described in any one of claims 1 to 9, the crane is constituted by the connecting portion and the ear hooking portion, and the waveguide is formed. Since the connecting portion extends in the extension direction and is connected to the modulated light output portion, the waveguide is connected to the modulated light output portion provided in the direction without being extremely bent. can do. Moreover, if the modulated light output portion is provided in the ear hooking portion, the waveguide is connected to the modulated light output portion while being stably supported by the apparatus frame over its entire length.

  In the invention according to claim 11, in addition to the effects of the invention according to any one of claims 1 to 9, the vine is composed of a connecting portion and an ear hook portion, and the waveguide is formed. Since it extends in the extension direction of the ear hook and is connected to the modulated light output unit, the waveguide does not bend extremely with respect to the modulated light output unit provided in the direction. Can be connected. Moreover, if the modulated light output portion is provided in the ear hooking portion, the waveguide is connected to the modulated light output portion while being stably supported by the apparatus frame over its entire length.

  1 to 6 show a first embodiment. The retinal scanning display device 1 of this embodiment includes a device frame 2, a modulated light output unit 3, a scanning unit 4, and an optical fiber 5. The optical fiber 5 constitutes an optical transmission unit or a waveguide through which light is transmitted.

  The device frame 2 is attached to the head of the wearer. The modulated light output unit 3 outputs light such as laser light as modulated light whose intensity is modulated in accordance with image information. The scanning unit 4 scans the retina of the wearer with the modulated light and displays an image on the retina.

  The modulated light output unit 3 and the scanning unit 4 are provided separately from each other. That is, the modulated light output unit 3 is carried by being worn on the waist or back of the wearer by means of a belt or the like. On the other hand, the scanning unit 4 is provided in the device frame 2. The modulated light output unit 3 and the scanning unit 4 are optically connected by an optical fiber 5. The optical fiber 5 is attached to the apparatus frame by means such as adhesion. The optical fiber 5 functions as an optical transmission unit that transmits the modulated light output from the modulated light output unit 3 to the scanning unit 4.

  The apparatus frame body 2 can be used in the same manner of use as glasses if it is formed into a spectacle shape from a front frame 6 and two temples 7 connected to both ends of the front frame 6. The frame body 2 may be in any form that can be worn on the wearer's head, and is not limited to the eyeglass shape. As shown in FIG. 2, the front frame 6 is provided with two light reflecting surface portions 8. Each light reflecting surface portion 8 is provided at a position facing each eye of the wearer in a state where the device frame 2 is worn on the head of the wearer.

  The light reflecting surface portion 8 has a light reflecting surface 9 that faces the eye of the wearer. The light reflecting surface 9 is formed of a spheroid. The spheroidal surface is formed by a surface S2 on which a part of the ellipse is scanned as shown in FIG. 4 when the ellipse is rotated with the long axis L of the ellipse S1 shown in FIG. 3 as the rotation axis. It is what is done.

  The ellipse S1 has two focal points A and B. Here, as an elliptical property, as shown in FIG. 3, there is a characteristic that light emitted from a light source arranged at one focal point A and reflected by the elliptical shape gathers at the other focal point B. Since the light reflecting surface 9 is formed as a spheroidal surface as described above, as shown in FIG. 5, the light reflecting surface 9 is emitted from one focal point A, and any position of the light reflecting surface 9, for example, FIG. Even light reflected by a, b, c, and d gathers at the other focal point B.

  Therefore, the scanning unit 4 is attached to the temple 7 so that the scanning light emitting unit 4a (FIG. 2) that emits the light of the scanning unit 4 is located at one of the elliptical focal points A, and the other By forming the device frame 2 so that the eye of the wearer is positioned at the focal point B, the light beam is emitted from the scanning light emitting unit 4a of the scanning unit 4 as shown in FIG. The light reflected at any position is formed so as to collect in the wearer's eyes.

  As shown in FIG. 6, the modulated light output unit 3 includes an image signal processing unit 10, a red light source 11, a green light source 12, a blue light source 13, collimating lenses 14, 15, and 16, and a wavelength selective mirror 17. , 18 and 19 and a focus lens 20. The image signal processing means 10 outputs an intensity modulation signal to the red light source 11, the green light source 12, and the blue light source 13 based on the image data, and outputs a control signal to the scanning unit 4. Light emitted from the red light source 11, the green light source 12, and the blue light source 13 is formed into substantially parallel rays by collimating lenses 14, 15, and 16, and then combined by the wavelength selective mirrors 17, 18, and 19. The focus lens 20 is configured to be incident on the optical fiber 5. The control signal is transmitted by the optical fiber 5 or transmitted by an electric cord separately from the optical fiber 5.

  The scanning unit 4 includes a collimating lens 21, a first deflecting unit 22, a convex lens 23, a second deflecting unit 24, a convex lens 25, a control circuit 26, and a BD sensor 27.

  The collimating lens 21 is provided at the light output end of the optical fiber 5 and converts the modulated light output from the optical fiber 5 into a substantially parallel light beam. The first deflecting means 22 is rotatably provided by a rotating shaft 28. The first deflecting means 22 reflects the light beam that has passed through the collimating lens 21 in a direction corresponding to the rotational position of the first deflecting means 22. The convex lens 23 concentrates the light beam reflected by the first deflecting unit 22 on the second deflecting unit 24. The second deflecting means 24 is provided so as to be swingable about a rotation shaft 29 as a rotation center. The second deflection unit 24 reflects the light beam that has passed through the convex lens 23 in a direction corresponding to the rotational position of the second deflection unit 24. The convex lens 25 displays an image on the retina M4 by concentrating the light beam reflected by the second deflecting unit 24 on the lens M3 through the pupil M2 surrounded by the iris M1 of the wearer's eye M. It is.

  The control circuit 26 controls the rotation of the first and second deflecting units 22 and 24 based on the control signal transmitted from the modulated light output unit 3, thereby modulating light on the retina M of the wearer. Is displayed to display an image.

  By controlling the control circuit 26 based on the signal from the BD sensor 27, the start point of the modulated light scanned on the retina M4 is adjusted.

  Next, the operation and action of the retinal scanning display device 1 configured as described above will be described.

  First, a person who intends to wear the retinal scanning display device 1 wears the modulated light output unit 3 on the waist, back, etc. of the wearer with a belt or the like. Thereafter, the device frame 2 is mounted on the head of the wearer by putting the temple 7 of the device frame 2 on the ear of the wearer in the same manner as normal glasses. In this state, as shown in FIG. 2, the scanning light emitting part a of the scanning part 4 is located at one focal point of the light reflecting surface 9 provided on each light reflecting surface part 8 of the device frame 2, and the other side. The eye of the wearer is located at the focal point.

  After that, when the modulated light output unit 3 is activated, the laser light is intensity-modulated in accordance with the image information in the modulated light output unit 3 shown in FIG. 6 and output as modulated light. The modulated light is transmitted through the optical fiber 5 and input to the scanning unit 4.

  As shown in FIG. 2, when the scanning unit 4 irradiates the light reflecting surface 9 with modulated light, the modulated light is reflected by the light reflecting surface 9 and collected at the focal point of the light reflecting surface 9. Since the wearer's eye is located at the focal point, the modulated light is scanned on the wearer's retina M4 to display an image.

  By the way, since the optical fiber 5 is attached to the apparatus frame 2, the portion of the optical fiber 5 attached to the apparatus frame 2 is less likely to vibrate with respect to the apparatus frame 2 even when the wearer moves. That is, the vicinity of the connection with the scanning unit 4 in the optical fiber 5 is less likely to vibrate with respect to the scanning unit 4. For this reason, even if the signal transmitted through the optical fiber 5 is an analog signal, the analog signal does not include noise based on vibration of the optical fiber, and the optical fiber 5 transmits an analog signal with less noise to the scanning unit 4. it can.

  In the first embodiment, when the light reflecting surface portion 8 is formed of a translucent member, the wearer can visually see the surroundings through the light reflecting surface portion 8, so that the modulated light output portion is provided by the optical fiber 5. The surrounding scene can be visually observed by superimposing it on the image transmitted from 3. Further, since the device frame 2 is a type that can be worn on the wearer's head, the wearer can visually observe an image transmitted from the modulated light output unit 3 while performing manual work, for example.

  In the first embodiment, the modulated light output from the scanning unit 4 is once reflected by the light reflecting surface 9 and then enters the wearer's eyes, so that the area of the light reflecting surface 9 is increased. Thus, the modulated light can be scanned over a wide range on the retina M4 of the wearer, and thus an image with a large angle of view can be displayed. In this embodiment, the light reflecting surface 9 of the device frame 2 is formed as a spheroidal surface. However, the rotation angle of the first deflection unit 22 and the rotation angle of the second deflection unit 24 of the scanning unit 4 are adjusted. Thus, if the modulated light emitted from the scanning unit 4 is concentrated on the crystalline lens M3 through the pupil M2 of the wearer's eye M and can be collected on the retina M4 to display an image, the light reflecting surface 9 is formed. Even if it is formed on a plane or curved surface other than the spheroid, the same effect can be obtained.

  Next, FIG. 7 shows a second embodiment of the present invention. In the second embodiment, the light reflecting surface portion 8 and the light reflecting surface 9 are not provided as compared with the first embodiment. The feature of this second embodiment is that it is provided on the front frame 6 so that the two scanning units 4 face each eye of the wearer while the apparatus frame 2 is worn on the wearer's head. There is in point. The scanning light emitting unit 4a of the scanning unit 4 is arranged to face the wearer's eye, and the modulated light emitted from the scanning unit 4 is directly concentrated on the crystalline lens through the pupil of the wearer's eye. Scanning on the retina.

  In the second embodiment, as compared with the first embodiment, it is not necessary to form a light reflecting surface formed of a spheroid on the front frame, and thus a retinal scanning display device can be easily formed. .

  Next, FIG. 8 shows a third embodiment of the present invention. A feature of the third embodiment is that a plurality of stoppers 31 are provided on the outer surface along the outer surface of the temple 7 so that the optical fiber 5 can be fixed along the outer surface of the temple 7. In the point. The stopper 31 is formed in an annular shape having an insertion hole 32 through which the optical fiber 5 is inserted. The stopper 31 may be formed integrally with the temple 7, or may be formed separately from the temple 7 and attached to the temple 7.

  When the retinal scanning display device is configured in this way, after the optical fiber 5 is supported by the temple 7 along the temple 7 by inserting and wiring the optical fiber 5 through the insertion hole 32 of the stopper 31. The both ends of the optical fiber 5 are optically connected to the modulated light output unit and the scanning unit, respectively.

  In this embodiment, when compared with the first embodiment, the optical fiber 5 can be supported on the temple 7 by a simple operation of inserting the optical fiber 5 into the insertion hole 32 of the stopper 31. For this reason, the optical fiber 5 can suppress vibration with respect to the temple 7 and is stably supported by the temple 7. Therefore, the vicinity of the connection with the scanning unit 5 in the optical fiber 5 is suppressed from vibrating with respect to the scanning unit 4.

  FIG. 9 shows a fourth embodiment. In this embodiment, an insertion part is provided in the temple 7 and an optical fiber is inserted through the insertion part. In particular, in this embodiment, the insertion portion is configured by a through hole 33 penetrating the inside of the temple 7 along the longitudinal direction of the temple 7.

  In this embodiment, after the through hole 33 provided in the temple 7 is inserted and the optical fiber 5 is wired, both ends of the optical fiber 5 are optically connected to the modulated light output unit and the scanning unit, respectively. .

  In this embodiment, the optical fiber 5 is embedded in the temple 7 as compared with the first embodiment, so that the optical fiber 5 is in contact with the scanning unit 4 by touching the wearer's hand or the like. There is no risk of vibration.

  FIG. 10 shows a fifth embodiment. The feature of this embodiment is that the insertion portion provided in the temple 7 of the device frame 2 so as to insert the optical fiber 5 is formed by the groove 34 provided in the side surface along the side surface of the temple 7. It is in.

  In this embodiment, as shown in FIG. 10, the optical fiber 5 is moved in the direction of arrow C perpendicular to the wiring direction from the posture in which the optical fiber 5 is wired along the groove 34. The optical fiber 5 is inserted into the groove 34 by being pushed in from the side. Thereafter, the entire or part of the opening of the groove 34 is closed to prevent the optical fiber 5 from falling off the groove 34 itself.

  In the above embodiment, the optical fiber 5 is provided on the temple 7. However, if the temple 7 itself is formed by an optical transmission unit having a function of transmitting light, the optical fiber 5 is provided in addition to the temple 7. It is not necessary to employ a structure in which the optical fiber 5 is provided on the temple 7.

  11 to 13 show a sixth embodiment of the present invention. The device frame 2 of the sixth embodiment is formed in a spectacle shape from a front frame 6 and two temples 7, and the front frame 6 and the temple 7 are connected by a hinge portion 36, whereby the temple 7 Can be extended and folded with respect to the front frame 6. Here, the extension means a state in which the hinge portion 36 is extended. The folded state refers to a state in which the temple 7 is bent with respect to the front frame 6 by bending the hinge portion 36. The front frame 6 is provided with two light reflecting surface portions 8, bridges 37 connecting the light reflecting surface portions 8 to each other, and both sides of the light reflecting surface portions 8. The front frame 6 is connected to the temple 7 by the hinge portion 36. 38.

  Each wisdom 38 is provided with a scanning unit 4. It is the same as the scanning unit 4 of the first embodiment in that each scanning unit 4 is provided so as to be positioned at one focal point of the light reflecting surface 9 of the light reflecting surface unit 8.

  The modulated light output from the modulated light output unit 3 is transmitted through the optical fiber 39 and the modulated light input unit 40 and input to the scanning unit 4. The optical fiber 39 is provided on the temple 7 between the modulated light output portion 3 and the hinge portion 36. The modulated light input unit 40 is provided in the wisdom 38 between the scanning unit 4 and the hinge unit 36. Here, the modulated light input section 40 can be formed of an optical fiber.

  In FIG. 12, the light output end of the optical fiber 39 and the light input end of the modulated light input portion 40 come into contact with each other with the temple 7 extended with respect to the front frame 6. Then, modulated light is input to the modulated light input unit 40. On the other hand, in FIG. 13, the optical output end of the optical fiber 39 and the optical input end of the modulated light input portion 40 are separated from each other with the temple 7 bent with respect to the front frame 6. The input of the modulated light from 39 to the modulated light input unit 40 is blocked.

  In this embodiment, when compared with the first embodiment, when the retinal scanning display device 1 is not used, the retinal scanning display device 1 is made compact by folding the temple 7 with respect to the front frame 6. Can be accommodated.

  FIG. 14 shows a seventh embodiment. In this embodiment, the modulated light output from the modulated light output unit 3 is transmitted by the optical fiber 39 and the modulated light input unit 40 and input to the scanning unit 4. The optical fiber 39 is provided by being inserted through a temple insertion hole 45 provided in the temple 7. The modulated light input part side end 39 a of the optical fiber 39 protrudes from the temple insertion hole 45 toward the modulated light input part 40. The modulated light input section 40 is provided by being inserted into a front frame insertion hole 46 provided in the front frame 6. The tip of the modulated light input section 40 is retreated from the edge 46 a of the front frame insertion hole 46 toward the inside of the front frame insertion hole 46 so as to be away from the optical fiber 39.

  The front end of the optical fiber 39 enters the front frame insertion hole 46, contacts the modulated light input unit 40 in the front frame insertion hole 46, and can be separated from the modulated light input unit 40. Is provided.

  In this embodiment, when the temple 7 is extended, the tip of the optical fiber 39 comes into contact with the tip of the modulated light input unit 40, and the modulated light output from the modulated light output unit 3 is converted into the modulated light input unit 40. To enter. On the other hand, when the temple 7 is bent, the tip of the optical fiber 39 is separated from the modulated light input unit 40, and the modulated light output from the modulated light output unit 3 is not input to the modulated light input unit 40.

  In this embodiment, when the retinal scanning display device 1 with the temple 7 bent is not used, the tip of the optical fiber 39 is separated from the modulated light input unit 40, so that light does not leak from the scanning unit 4 to the outside. .

  FIG. 15 shows an eighth embodiment. In this embodiment, similarly to the seventh embodiment, the modulated light output from the modulated light output unit 3 is transmitted by the optical fiber 39 and the modulated light input unit 40 and input to the scanning unit 4. . The modulated light input unit 40 is provided by being inserted through a front frame insertion hole 46 provided in the front frame 6. The tip of the modulated light input portion 40 protrudes from the front frame insertion hole 46 toward the optical fiber 39. The optical fiber 39 is inserted into a temple insertion hole 45 provided in the temple 7. The modulated light input part side end 39a of the optical fiber 39 recedes from the edge 45a of the temple insertion hole 45 toward the inside of the temple insertion hole 45 so as to move away from the modulated light input part 40. .

  The leading end of the modulated light input section 40 enters the temple insertion hole 45, contacts the optical fiber 39 in the temple insertion hole 45, and is provided so as to be separated from the optical fiber 39.

  In this embodiment, when the temple 7 is extended, the tip of the modulated light input unit 40 comes into contact with the tip of the optical fiber 39, and the modulated light output from the modulated light output unit 3 is modulated light input unit 40. Is input. On the other hand, when the temple 7 is bent, the tip of the modulated light input unit 40 is separated from the optical fiber 39, and the modulated light output from the modulated light output unit 3 is not input to the modulated light input unit 40.

  In this embodiment, when the retinal scanning display device 1 in which the temple 7 is bent is not used, the tip of the optical fiber 39 is separated from the modulated light input unit 40, so that no light leaks from the scanning unit 4 to the outside. .

  FIG. 16 shows a ninth embodiment. Compared with the sixth embodiment shown in FIG. 11, the ninth embodiment is characterized by the modulated light input side end 39 a of the optical fiber 39 in a state where the temple 7 is bent with respect to the front frame 6. This is in that a light shielding part 50 for shielding light leaking to the outside is provided. The light shielding portion 50 can be formed in a plate shape. The light shielding portion 50 has a proximal end provided outside the modulated light input portion 40, and a distal end side extending beyond the light input end of the modulated light input portion 40 toward the temple 7. .

  In the ninth embodiment configured as described above, light output from the modulated light input portion side end portion 39a of the optical fiber 39 in a state where the temple 7 is bent with respect to the front frame 6 is the light shielding portion 50. When the light hits the inner surface of the light and is reflected, the light is blocked by the light shielding portion 50 and does not leak outside.

  If minute irregularities are formed on the inner surface of the light-shielding part 50, the light hitting the inner surface is diffusely reflected to the surroundings and not reflected in one direction as described above. For this reason, when the retinal scanning display device 1 is not used, the light output from the optical fiber 39 does not leak outside.

  FIG. 17 shows a tenth embodiment. The feature of the tenth embodiment is that the power source 51 of the modulated light output unit 3 is connected in series to the modulated light output unit 3 by a wiring 52, and the wiring 52 is connected to the first wiring 53 and the first wiring 53 at the hinge portion 36. The second wiring 54 is divided into two wirings 54, while the end portions 55 and 56 of the first and second wirings 53 and 54 are exposed at the hinge portion 36. The end portions 55 and 56 of the first and second wirings 53 and 54 come into contact with each other when the temple 7 extends with respect to the front frame 6, and power is supplied to the modulated light output unit 3 from the power source 51. On the other hand, the supply of power from the power source 51 to the modulated light output unit 3 is stopped by separating the temples 7 from each other in a state of being bent with respect to the front frame 6. The end portions 55 and 56 of the first and second wirings 53 and 54 function as an electrical switch provided between the modulated light output unit 3 and the power source 51.

  With this configuration in the tenth embodiment, when the retinal scanning display device 1 is used, that is, when the temple 7 is extended with respect to the front frame 6, the first and second wirings 53, When the end portions 55 and 56 of 54 are brought into contact with each other, power is supplied from the power source 51 to the modulated light output unit 3, so that the modulated light output unit 3 outputs the modulated light. Further, when the retinal scanning display device 1 is not used, that is, when the temple 7 is bent with respect to the front frame 6, the end portions 55 and 56 of the first and second wirings 53 and 54 are not in contact with each other. Thus, when the supply of power from the power source 51 to the modulated light output unit 3 is stopped, the modulated light output unit 3 does not output the modulated light.

  As described above, in the tenth embodiment, when the retinal scanning display device 1 is used, the modulated light output unit 3 is supplied with power from the power source 51 if the temple 7 is extended with respect to the front frame 6. On the other hand, when the retinal scanning display device 1 is not used, the supply of power from the power source 51 to the modulated light output unit 3 is stopped if the temple 7 is bent with respect to the front frame 6. For this reason, it is possible to save power consumption when the retinal scanning display device 1 is not used. As the power source 51, a DC power source or an AC power source can be used.

  FIG. 18 shows an eleventh embodiment. A feature of the eleventh embodiment is that the power source 51 of the scanning unit 4 is connected in series to the scanning unit 4 by a wiring 62, and the wiring 62 is divided into a first wiring 63 and a second wiring 64 in the hinge section 36. On the other hand, the end portions 65 and 66 of the first and second wirings 63 and 64 are exposed at the hinge portion 36. The ends 65 and 66 of the first and second wirings 63 and 64 come into contact with each other when the temple 7 extends with respect to the front frame 6, and supply power from the power source 61 to the scanning unit 4. The power supply from the power supply 61 to the scanning unit 4 is stopped by separating the temples 7 from each other in a state where the temples 7 are bent with respect to the front frame 6. The end portions 65 and 66 of the first and second wirings 63 and 64 function as electrical switches provided between the scanning unit 4 and the power source 61.

  With this configuration in the eleventh embodiment, when the retinal scanning display device 1 is used, that is, when the temple 7 is extended with respect to the front frame 6, the first and second wirings 63, When the end portions 65 and 66 of 64 come into contact with each other, power is supplied from the power source 61 to the scanning unit 4, so that the scanning unit 4 operates. When the retinal scanning display device 1 is not used, that is, when the temple 7 is bent with respect to the front frame 6, the end portions 65 and 66 of the first and second wirings 63 and 64 are not in contact with each other. Thus, when the supply of power from the power supply 61 to the scanning unit 4 is stopped, the scanning unit 4 stops operating.

  Thus, in the eleventh embodiment, when the retinal scanning display device 1 is used, the scanning unit 4 can be operated by being supplied with power from the power source 61 by extending the temple 7 with respect to the front frame 6. When the retinal scanning display device 1 is not used, the power supply from the power supply 61 to the scanning unit 4 is stopped if the temple 7 is bent with respect to the front frame 6. For this reason, it is possible to save power consumption when the retinal scanning display device 1 is not used. As the power supply 61, a DC power supply or an AC power supply can be used.

  FIG. 19 shows a twelfth embodiment. A feature of the twelfth embodiment is that a power source 71 is connected in series to the modulated light output unit 3 and the scanning unit 4 by a wiring 72, and the wiring 72 is connected to the first wiring 73 and the second wiring 74 in the hinge portion 36. However, the end portions 75 and 76 of the first and second wirings 73 and 74 are exposed at the hinge portion 36. The ends 75 and 76 of the first and second wirings 73 and 74 are brought into contact with each other when the temple 7 extends with respect to the front frame 6, and the power supply to the modulated light output unit 3 and the scanning unit 4 While power is supplied from 71, the power supply from the power supply 71 to the modulated light output unit 3 and the scanning unit 4 is stopped by separating the temples 7 from each other in a state where the temple 7 is bent with respect to the front frame 6. To do. The end portions 75 and 76 of the first and second wirings 73 and 74 function as electric switches provided between the modulated light output unit 3 and the scanning unit 4 and the power source 71.

  With this configuration in the twelfth embodiment, when the retinal scanning display device 1 is used, that is, when the temple 7 is extended with respect to the front frame 6, the first and second wirings 73, When the end portions 75 and 76 of 74 come into contact with each other, power is supplied from the power source 71 to the modulated light output unit 3 and the scanning unit 4, so that the modulated light output unit 3 and the scanning unit 4 operate. . When the retinal scanning display device 1 is not used, that is, when the temple 7 is bent with respect to the front frame 6, the end portions 75 and 76 of the first and second wirings 73 and 74 are not in contact with each other. As a result, the supply of power from the power supply 71 to the modulated light output unit 3 and the scanning unit 4 is stopped, so that the modulated light output unit 3 and the scanning unit 4 do not operate.

  Thus, in the twelfth embodiment, when the retinal scanning display device 1 is used, the modulated light output unit 3 and the scanning unit 4 are powered from the power source 71 by extending the temple 7 relative to the front frame 6. On the other hand, when the retinal scanning display device 1 is not used, the power from the power source 71 to the modulated light output unit 3 and the scanning unit 4 can be obtained by bending the temple 7 with respect to the front frame 6. Supply stops. For this reason, it is possible to save power consumption when the retinal scanning display device 1 is not used, and further reduce the operation of the modulated light output unit 3 and the scanning unit 4 to reduce component failures. it can. As the power supply 71, a DC power supply or an AC power supply can be used. Further, the drive signal line may be connected / disconnected instead of turning on / off the power supply.

  FIG. 20 shows a thirteenth embodiment. In this embodiment, the apparatus frame body 2 is constituted by the front frame 6 and the two temples 7, and the temple 7 is constituted by a connecting portion 80 connected to the front frame 6 and an ear hooking portion 81. It is. The optical fiber 5 connected to the scanning unit 4 extends rearward in the extending direction of the connecting unit 80 and is connected to the modulated light output unit 3.

  In this embodiment, since the connecting portion 80 extends in the extending direction of the connecting portion 80 along the shape of the temple 7 and is connected to the modulated light output portion 3, the modulated light output portion 3 is When the connecting portion 80 is disposed in the extending direction, the optical fiber 5 is not extremely bent. Therefore, the optical fiber 5 is extended and connected to the modulated light output portion 3 without being damaged. Can do.

  FIG. 21 shows a fourteenth embodiment. In this embodiment, similarly to the thirteenth embodiment shown in FIG. 20, the device frame 2 is constituted by the front frame 6 and the two temples 7, and the connecting portion 80 is connected to the front frame 6. And the ear hooking portion 81. In a state where the device frame 2 is mounted on the head of the wearer, the ear hook 81 has a shape that is curved downward so that it can be easily hooked on the ear of the wearer. In this embodiment, the optical fiber 5 is provided on the temple 7 along the shape of the temple 7, and the optical fiber 5 extends in the extending direction of the ear hook 81, that is, obliquely downward. Thus, it is optically connected to the modulated light output unit 3.

  In this embodiment, the modulated light output unit 3 is connected to the modulated light output unit 3 so as to extend in the extending direction of the hook unit 81 along the shape of the ear hook 81 of the temple 7. Is arranged in the extending direction of the ear hook 61, the optical fiber 5 is not extremely bent. Therefore, the optical fiber 5 is extended without being damaged, and is extended to the modulated light output unit 3. Can be connected.

  FIG. 22 shows a fifteenth embodiment. In this embodiment, similarly to the thirteenth and fourteenth embodiments, the device frame 2 is constituted by the front frame 6 and the two temples 7, and the connecting portion 80 is connected to the front frame 6. , And the ear hook portion 81. The ear hook 81 has a shape curved downward so that it can be easily put on the wearer's ear. In this embodiment, the modulated light output unit 3 is provided in the ear hook 81. The ear hook 81 and the scanning unit 4 are optically connected by an optical fiber 5 provided in the connecting part 80 along the connecting part 80.

  In this embodiment, since the optical fiber 5 is supported by the connecting portion 80 of the temple 7 over the entire length, there is no risk of vibration, and therefore, a signal transmitted by the optical fiber 5 may contain noise. Absent.

  FIG. 23 shows a sixteenth embodiment. In this embodiment, as in the thirteenth to fifteenth embodiments, the device frame 2 is constituted by the front frame 6 and the two temples 7, and the temple 7 is connected to the front frame 6. 80 and an ear hooking portion 81. The ear hook 81 has a shape curved downward so that it can be easily put on the wearer's ear. In this embodiment, the optical fiber 5 is provided on the temple 7 along the shape of the temple 7, and the optical fiber 5 is obliquely downward in the vertical direction from the lower end of the ear hook 81 and in the horizontal direction. It extends to the opposite side of the head of the wearer and is optically connected to the modulated light output unit 3.

  In this embodiment, the optical fiber 5 is connected to the modulated light output section 3 that is disposed obliquely downward in the vertical direction from the lower end of the ear hook 81 of the temple 7 and on the opposite side of the wearer's head in the horizontal direction. In the case of connection, the optical fiber 5 can be extended and connected to the modulated light output unit 3 without bending the optical fiber 5 extremely. Further, when the optical fiber 5 is thus extended from the temple 7, the head of the wearer does not get in the way when wiring the optical fiber 5.

  FIG. 24 shows a seventeenth embodiment. In this embodiment, similarly to the sixth embodiment shown in FIG. 11, the device frame 2 is constituted by the front frame 6 and the two temples 7, and the front frame 6 includes the two light reflecting surface portions 8 and these. This is composed of a bridge 37 connecting the light reflecting surface portions 8. Then, two optical fibers 5 are provided along one temple 7, and one of the optical fibers 5 is connected to one scanning unit 4 provided on the temple 7 and the other optical fiber 5. Is further extended along the upper edge of the light reflecting surface portion 8 and the upper edge of the bridge 37 and connected to the other scanning portion 4.

  In the seventeenth embodiment configured as described above, the two optical fibers 5 connected to the modulated light output unit 3 are bundled into one bundle by the ring-shaped locking member 62, and then one of the cranes 7. Since the optical fiber 5 is connected to the modulated light output unit 3, the wiring structure of the optical fiber 5 is simplified as compared with the case where the two optical fibers 5 are individually connected to the modulated light output unit 3. Turn into. In this embodiment, the two optical fibers 5 are combined into one bundle, so that the strength of the optical fiber 5 is increased and the image quality due to the fluctuation of the optical fiber 5 is stabilized.

  The wearer wears the modulated light output unit on the waist, back, etc., and superimposes it with the scene at the desired position while moving the scanning unit on the head or after moving to the desired position. In this way, the present invention can be applied to the purpose of viewing an image.

It is a perspective view of the retinal scanning display apparatus of this invention. (First embodiment) It is a top view of the retinal scanning display apparatus of this invention. (First embodiment) FIG. 5 is an explanatory diagram illustrating a process of forming a spheroid of the retinal scanning display device of the present invention. (First embodiment) FIG. 5 is an explanatory diagram illustrating a process of forming a spheroid of the retinal scanning display device of the present invention. (First embodiment) FIG. 6 is an explanatory diagram for explaining reflection by a reflecting surface in the retinal scanning display device of the present invention. (First embodiment) It is a block diagram of the retina scanning display apparatus of this invention. (First embodiment) It is a top view of the retinal scanning display apparatus of this invention. (Second Embodiment) It is sectional drawing of the vine of the retinal scanning display apparatus of this invention. (Third embodiment) It is sectional drawing of the vine of the retinal scanning display apparatus of this invention. (Fourth embodiment) It is sectional drawing of the vine of the retinal scanning display apparatus of this invention. (Fifth embodiment) It is a partial top view of the retinal scanning display apparatus of this invention. (Sixth embodiment) FIG. 10 is a perspective view showing a case where the optical fiber and the modulated light input section are in contact with each other in a state where the crane is extended. (Sixth embodiment) FIG. 5 is a perspective view showing a case where an optical fiber and a modulated light input portion are separated in a state where a temple is bent. (Sixth embodiment) It is the top view which made some cross sections the retina scanning display apparatus of this invention. (Seventh embodiment) It is the top view which made some cross sections the retina scanning display apparatus of this invention. (Eighth embodiment) It is a partial top view of the retinal scanning display apparatus of this invention. (Ninth embodiment) It is a partial top view of the retinal scanning display apparatus of this invention. (Tenth embodiment) It is a partial top view which shows the wiring structure between the scanning part and power supply of this invention. (Eleventh embodiment) It is a partial top view which shows the wiring structure between the modulated light output part and scanning part of this invention, and a power supply. (Twelfth embodiment) It is a side view of the retinal scanning display apparatus of this invention. (13th Embodiment) It is a side view of the retinal scanning display apparatus of this invention. (14th Embodiment) It is a perspective view of the retinal scanning display apparatus of this invention. (Fifteenth embodiment) It is a perspective view of the retinal scanning display apparatus of this invention. (Sixteenth embodiment) It is a perspective view of the retinal scanning display apparatus of this invention. (17th Embodiment) It is a block diagram of a retina scanning display apparatus. (Conventional technology)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Retina scanning display apparatus 2 Apparatus frame 3 Modulated light output part 4 Scanning part 5 Optical fiber (optical transmission part, waveguide)
6 Front frame 7 Crane 8 Light reflection surface portion 9 Light reflection surface 31 Stopper 33 Insertion hole (insertion portion)
34 Groove (insertion part)
36 hinge part 39 optical fiber 40 modulated light input part 45 crane insertion hole 46 front frame insertion hole 50 light shielding part 55, 56 contact point (electric switch)
65, 66 contacts (electric switch)
75,76 contacts (electric switch)
80 connection part 81 ear hook part

Claims (11)

An apparatus frame mounted on a wearer's head; a modulated light output unit that outputs light as modulated light modulated according to image information; and the apparatus frame. A scanning unit that scans and displays an image on the retina of the wearer; a waveguide that is provided in the apparatus frame and transmits the modulated light output from the modulated light output unit to the scanning unit; With
The apparatus frame is formed into a spectacle shape having a front frame and a temple,
By providing a hinge portion between the front frame and the temple, the temple is connected to the front frame so that it can be bent and extended,
The scanning unit is provided in the front frame,
The waveguide is provided on the temple between the modulated light output part and the hinge part,
Modulated light that inputs modulated light transmitted by the waveguide to the scanning unit
An input part is provided on the front frame between the scanning part and the hinge part,
With the vine extended, the end of the waveguide and the modulated input portion are brought into contact with the hinge portion to allow the modulated light to be incident from the waveguide to the modulated input portion.
In the state where the temple is bent, the end of the waveguide and the modulated input portion are separated from each other so as to block the incidence of the modulated light from the waveguide to the modulated input portion. A retinal scanning display device. The waveguide is inserted into a temple insertion hole provided in the temple, the modulated light input portion side end of the waveguide is provided to protrude from the temple insertion hole, and the modulated light input portion The waveguide is inserted into a front frame insertion hole provided in a frame, and is retracted from the edge of the front frame insertion hole to the inside of the front frame insertion hole. 2. The waveguide according to claim 1 , wherein the waveguide is separated from the modulated light input portion in a state in which the waveguide enters the front frame insertion hole, contacts the modulated light input portion, and the temple is bent. Retina scanning display device. The modulated light input section is inserted into a front frame insertion hole provided in the front frame, and is provided so as to protrude from the front frame insertion hole. The waveguide is provided in a temple insertion hole provided in the temple. The modulated light input part side end of the waveguide is provided so as to recede from the edge of the temple insertion hole to the inside of the temple insertion hole, and the modulated light input part is extended in the state where the temple is extended. 2. The retinal scanning according to claim 1 , wherein the modulated light input unit is separated from the waveguide in a state where the temple is bent and the crown is bent. Display device. The light-shielding part which prevents that the modulated light radiate | emitted from the modulated light input part side edge part of the said waveguide leaks outside in the state in which the said temple was bent is provided. Retina scanning display device. A state in which the hinge is provided between the front frame and the temple so that the temple can be bent and extended with respect to the front frame, an electric switch is provided in the hinge, and the temple is extended. And the modulated light output unit is activated by turning on the electrical switch, and the operation of the modulated light output unit is stopped by turning off the electrical switch while the crane is bent. retinal scanning display device according to any one of claims 1 to 4,. A state in which the hinge is provided between the front frame and the temple so that the temple can be bent and extended with respect to the front frame, an electric switch is provided in the hinge, and the temple is extended. 2. The apparatus according to claim 1, wherein the scanning unit is activated by turning on the electrical switch and the operation of the scanning unit is stopped by turning off the electrical switch while the crane is bent. The retinal scanning display device according to claim 4. 2. The light reflecting surface portion provided on the device frame so as to face the wearer's eye, and the scanning portion scans the modulated light with respect to the light reflecting surface portion. Item 7. The retinal scanning display device according to any one of Items 6 above. The light reflecting surface portion has an elliptical surface provided to face the wearer's eye, and the scanning light emitting unit of the scanning unit is disposed at one focal point of the elliptical surface,
The scanning unit scans the modulated light with respect to the elliptical surface and reflects the modulated light on the elliptical surface, thereby displaying an image on the wearer's eye located at the other focal point of the elliptical surface. The retinal scanning display device according to claim 7, wherein The retinal scanning display device according to claim 1, wherein an insertion portion for inserting the waveguide into the device is provided in the temple . The crane includes a connecting portion connected to the front frame, and an ear hooking portion that is bent and extended from the connecting portion and is hung on a wearer's ear, and the waveguide extends in an extending direction of the connecting portion. The retinal scan according to claim 1, wherein the retinal scan is extended and connected to the modulated light output unit, and the modulated light output unit is provided in the ear hooking unit. Display device. The crane comprises a connecting portion connected to the front frame, and an ear hooking portion that is bent and extended from the connecting portion and is hung on a wearer's ear, and the waveguide is an extension direction of the ear hooking portion. The retina according to any one of claims 1 to 9, wherein the retina is connected to the modulated light output unit and the modulated light output unit is provided in the ear hook. Scanning display device.

Images