JP2005107038A - Retina scanning and display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a retina scanning and display device in which a driver easily recognizes various information such as traffic information while driving by locating the position of a picture (virtual image) for displaying the information at the position at which the driver usually watches while driving, i.e., the focal point position of the eyes of the driver while driving. <P>SOLUTION: The retina scanning and display device which displays a picture by scanning the retina of the eyes with light corresponding to a picture signal, is characterized by that the device is provided with: a distance varying means 6 which varies the distance of the picture; and a distance control means 7 which controls the distance of the picture by controlling the distance varying means 6 according to the velocity of a moving body on which the driver rides. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

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

Conventionally, as shown in Patent Document 1, a retinal scanning display device is known in which an image is directly displayed on a human retina. Such a retinal scanning display device is worn by a driver while driving a car, so that the driver can obtain traffic information and the like while driving.
JP 11-271666 A

  In the retinal scanning display device 100, as shown in FIG. 14, the driver wears projection glasses 101 formed in a spectacle shape, projects traffic information on the projection glasses 101, and reflects light H from the projection glasses 101. Is focused on the lens M3 through the pupil M2 surrounded by the iris M1 of the driver's eye M, and an image is displayed on the retina M4.

  However, in the above-described retinal scanning display apparatus 100, as shown in FIG. 14, the driver recognizes a virtual image at a position P obtained by tracing back the reflected light H reflected from the projection glasses 101. The virtual image is recognized at a position P that is a certain distance away from the driver.

  By the way, the focus position of the driver's eyes changes according to the speed of the car, and when the car is driving at a low speed, the driver is driving while looking relatively near the front. In addition, the focal position of the driver's eyes is close to the driver. On the other hand, as the speed of the automobile increases, the driver is driving while viewing a relatively far distance ahead, so the focus position of the driver's eyes moves far away.

  As described above, the virtual image is recognized at the fixed position P, as described above, even though the focus position of the driver's eyes changes according to the speed of the automobile. For this reason, the focus position of the driver's eyes is different when the driver is devoted to driving and when viewing traffic information. Therefore, for example, when the driver suddenly wants to visually check the traffic information while driving at high speed, after changing the focal position of the eye from a distance to the position of the virtual image indicating the traffic information, Immediately adjust the focus of the eye to a distance.

  Therefore, the present invention has been made in view of the above-described prior art, and the purpose of the present invention is a position where a driver normally views the position of an image (virtual image) for displaying information during driving. That is, the retinal scanning display device that allows the driver to easily view various information such as traffic information while driving, by allowing the driver to adjust to the focal position of the driving eye. To provide.

  The invention according to claim 1 is a retinal scanning display device configured to display an image by scanning light according to an image signal onto a retina of an eye, and a distance variable unit that makes a distance of the image variable. And a distance control means for controlling the distance of the image by controlling the distance varying means in accordance with the speed of the moving body on board.

  The distance control means adjusts the position of the image by controlling the distance variable means according to the speed of the moving body.

  According to a second aspect of the present invention, in the retinal scanning display device according to the first aspect, the distance control means determines the distance from the occupant to the image according to the speed of the moving body. The distance variable means is controlled so as to be separated from the distance.

  The distance control means controls the distance variable means, so that the distance from the occupant of the moving object to the image is separated from the occupant as the moving object becomes faster.

  According to a third aspect of the present invention, there is provided image display position control means for controlling a position for displaying an image in accordance with a speed of a moving body on board.

  The image display position control means controls the position for displaying the image according to the speed of the moving body.

  According to a fourth aspect of the present invention, in the retinal scanning display device according to the third aspect, the image display position control means sets the image display position to an upper position as the speed of the moving body increases. It is characterized by controlling as follows.

  According to a fifth aspect of the present invention, in the retinal scanning display device according to the third aspect, the image display position control means sets the image display position to a lower position as the speed of the moving body becomes lower. It is characterized by controlling so that it may become.

  The invention according to claim 6 is a retinal scanning display device configured to display an image by scanning light according to an image signal on the retina, and a distance variable unit that varies a distance to the image; And a distance control means for controlling the distance of the image by controlling the distance variable means in accordance with the line-of-sight direction of the eye.

  The distance control means adjusts the position of the image by controlling the distance variable means according to the eye gaze direction.

  The invention according to claim 7 is characterized in that the distance control means controls the distance variable means so that the distance to the image is separated from the eye as the line-of-sight direction becomes far away. is there.

  The invention described in claim 8 is characterized by comprising image display position control means for controlling a position for displaying an image in accordance with the line-of-sight direction.

  According to a ninth aspect of the present invention, in the retinal scanning display device according to any one of the first to seventh aspects, an apparatus frame that is mounted on the head of the wearer, and a device frame that is provided on the apparatus frame. And a scanning unit that scans the retina of the eye with the light.

  The scanning unit displays an image on the retina of the wearer's eye while being mounted on the wearer's head.

  According to a tenth aspect of the present invention, in the retinal scanning display device according to any one of the first to eighth aspects, the image signal is a traffic-related image signal.

  A wearer of this device can visually check traffic-related image information.

  The invention described in claim 11 is characterized by comprising stop means for stopping the output of light.

  In the invention described in claim 11, the stopping means stops the output of light.

  According to a twelfth aspect of the present invention, in the retinal scanning display device according to the tenth aspect of the present invention, the stop means stops the light output when the moving body is turning.

  According to a thirteenth aspect of the present invention, the stopping means stops the output of the light when the engine of the moving body is stopped.

  According to the invention described in claim 1, since the distance from the passenger of the moving body to the image can be controlled according to the speed of the moving body, the image can be easily viewed from the moving body. .

  According to the invention of claim 2, the distance from the passenger of the moving body to the image can be increased as the speed of the moving body increases, so that the image can be easily displayed during high-speed movement. It can be visually recognized.

  According to the third aspect of the present invention, the image display position can be controlled in accordance with the speed of the moving body, so that the image can be visually recognized more easily. .

  According to the fourth aspect of the present invention, since the position for displaying the image can be positioned upward as the speed of the moving body increases, the image can be easily viewed during high-speed movement. it can.

  According to the fifth aspect of the present invention, since the position for displaying the image can be positioned downward as the speed of the moving body becomes low, the image can be easily viewed during low-speed movement. it can.

  According to the sixth aspect of the present invention, since the distance to the image viewed with this device can be controlled according to the line-of-sight direction of the wearer of this device, the image can be easily viewed.

  According to the seventh aspect of the present invention, as the user's line-of-sight direction of this device becomes far away, the image viewed with this device can be separated from the user, so it is easy to see the distance. An image can be visually recognized. .

  According to the invention described in claim 8, since the position where the image is displayed can be controlled in accordance with the line-of-sight direction of the user of this apparatus, the image can be visually recognized more easily. .

  According to the ninth aspect of the present invention, since the scanning unit is provided in the device frame and the device frame is mounted on the head, an image can be accurately displayed on the retina of the eye of the user of the device. it can.

  According to the invention described in claim 10, the user of this device can obtain traffic-related image information.

  According to the eleventh aspect, the display of the image can be stopped at any time by the stop means.

  According to the twelfth aspect of the present invention, the display of an image can be stopped when the moving body turns.

  According to the thirteenth aspect of the present invention, the display of images can be stopped when the engine of the moving body is stopped.

  1 to 9 show a first embodiment of the present invention. The retinal scanning display device 1 of this embodiment is used by being mounted on a driver of a moving body such as an automobile. As shown in FIG. 1, all or part of the retinal scanning display device 1 according to the present embodiment can be provided on, for example, a device frame 2 formed in a spectacle shape so that the driver can easily wear it.

  As shown in FIG. 1, the retinal scanning display device 1 displays a modulated light output unit 3, a light reflection unit 4, a scanning unit 5, and a distance variable unit 6, as shown in FIG. The distance control means 7 is provided. Since the left eye and the right eye have the same configuration, only one eye will be described below.

  The modulated light output unit 3 is an optical device that modulates light with the image signal G supplied from the external device 8 and outputs the modulated light S. As described above, when the device frame 2 is formed in a spectacle shape, the modulated light output unit 3 may be provided on the device frame 2 itself, or may be provided on a driver's body or a moving body. The modulated light S may be transmitted to the scanning unit 5 through an optical transmission line such as the optical fiber 9.

  The light reflecting portion 4 is provided so as to face the eye M of a driver or the like like a lens of a spectacle, and is formed of a material having light transmissivity and light reflectivity such as glass, and has a function of transmitting light and light. It has the function to reflect.

  The scanning unit 5 receives the modulated light S output from the modulated light output unit 3 and irradiates the modulated light S toward the light reflecting unit 4, and the reflected light R reflected by the light reflecting unit 4 is applied to the driver's eyes. It passes through the pupil M2 surrounded by the M iris M1, converges on the lens M3, scans on the retina M4, and displays an image on the retina M4. As described above, when the apparatus frame 2 is formed in a spectacle shape, the scanning unit 5 can be provided in the apparatus frame 2.

  The distance varying means 6 changes the angle of diffusion of the reflected light R of the modulated light S reflected by the light reflecting section 4, that is, changes the wavefront curvature of the light as shown by the one-dot chain line in FIG. The image recognized by the driver is displayed at a position P1 close to the driver, or the image recognized by the driver is at a position P2 away from the driver as shown by a two-dot chain line in the figure. Further, as shown by a dotted line in the figure, an image recognized by the driver is displayed so as to be at a distant position P3.

  The distance control means 7 controls the distance variable means 6 according to the speed of the moving body. The distance control means 7 separates the position of the image recognized by the driver from the driver's eyes M so as to change the position of the image recognized by the driver from position P1 → position P2 → position P3 as the speed of the moving body changes from low to high. On the other hand, as the speed of the moving body changes from high speed to low speed, the distance is variable so that the position of the image recognized by the driver is moved closer to the driver's eye M so as to change from position P3 → position P2 → position P1. The means 6 is controlled.

  Next, the distance variable means 6 will be described with reference to FIGS. The distance varying means 6 includes a convex lens 10, a position variable mirror 11, and a mirror driving unit 12. As shown in FIGS. 2 and 4, the modulated light S transmitted from the modulated light output unit 3 via the optical fiber 9 is guided to the distance variable means 6 by the half mirror 13-.

  The position variable mirror 11 is provided on the optical axis of the convex lens 10. As shown in FIGS. 3 and 5, the position variable mirror 11 is provided so as to be movable between a focal position f of the convex lens 10 and a position i approaching the convex lens 10 from the focal position f. 2 and 3 show a case where the position variable mirror is located at position a. 4 and 5 show a case where the position variable mirror 11 is positioned on the focal position f of the convex lens 10.

  As shown in FIGS. 2 and 3, when the position variable mirror 11 is located at the position a on the convex lens 10 side with respect to the focal position f of the convex lens 10, as shown by a one-dot chain line in FIGS. Recognizes that the image is present at a position P1 in the vicinity of the driver. The optical action that the driver recognizes in this way will be described later. Further, when the position variable mirror 11 is located at the focal position f of the convex lens 10, the driver recognizes that the image is present at a distant position P3 as shown by a dotted line in FIGS. . The optical action that the driver recognizes in this way will be described later. Further, when the position variable mirror 11 is located at a position B between the focal position f of the convex lens 10 and the aforementioned position a, the driver has an image at the position P2, as indicated by a two-dot chain line in FIG. It is recognized that

  The mirror driving means 12 is formed by a piezoelectric element, for example. When the mirror driving means 12 is formed of a piezoelectric element, the thickness of the piezoelectric element can be changed by supplying a voltage to the piezoelectric element with the position variable mirror 11 attached to the side surface of the piezoelectric element. The position variable mirror 11 can be moved away from or moved closer to the convex lens 10 so that the position variable mirror 11 can be aligned with the positions a, b and the focal position f described above.

  Next, the distance control means 7 will be described. As shown in FIGS. 3 and 5, the distance control means 7 as speed information input means is a voltage supplied to the piezoelectric element constituting the mirror drive means 12 based on the output of the speed sensor 14 for detecting the speed of the moving body. And the position of the position variable mirror 11 is changed by controlling the thickness of the piezoelectric element. As a result, the position of the position variable mirror 11 can be continuously changed between the focal position f of the convex lens 10 and a position inside the focal position f, for example, position a.

  Next, the modulated light output unit 3 will be described with reference to FIG. The modulated light output unit 3 includes an image signal processing unit 15 as an image information input unit to which image information from the external device 8 is input, a red light source 16, a green light source 17, a blue light source 18, a red light source driver 19, A green light source driver 20, a blue light source driver 21, collimating lenses 22, 23, 24, wavelength selective mirrors 25, 26, 27, and a focus lens 28 are provided. Then, the image signal processing means 15 is based on the image signal G supplied from the external device 8, and the red light source driver 19, the green light source driver 20, and the blue light source that drive the red light source 16, the green light source 17, and the blue light source 18, respectively. An intensity modulation signal is output to the driver 21. Light emitted from the red light source 16, the green light source 17, and the blue light source 18 is formed into substantially parallel rays by collimating lenses 22, 23, and 24, and then combined by the wavelength selective mirrors 25, 26, and 27. The focus lens 28 is configured to be incident on the optical fiber 9.

  Next, the above-described scanning unit 5 will be described with reference to FIGS. The scanning unit 5 includes a horizontal scanning mirror 29, convex lenses 30 and 31, a vertical scanning mirror 32, and convex lenses 33 and 34.

  The horizontal scanning mirror 29 is rotatably provided by a rotation shaft 35. The horizontal scanning mirror 29 reflects the modulated light that has passed through the half mirror 13 in a direction corresponding to the rotational position of the horizontal scanning mirror 29. The convex lenses 30 and 31 focus the light beam reflected by the horizontal scanning mirror 29 on the vertical scanning mirror 32.

  Further, the vertical scanning mirror 32 is provided so as to be swingable about the rotation shaft 36. The vertical scanning mirror 32 reflects the modulated light that has passed through the convex lens 31 in a direction corresponding to the rotational position of the vertical scanning mirror 32.

  Further, the convex lenses 33 and 34 concentrate the light modulated light S reflected by the vertical scanning mirror 32 on the retina M4 by concentrating on the lens M3 through the pupil M2 surrounded by the iris M1 of the driver's eye M. An image is displayed.

  Here, the horizontal scanning mirror 29 is located at the focal position of the convex lens 30, and the vertical scanning mirror 32 is located at the focal position of the convex lenses 31 and 33.

  Next, the above-described light reflecting portion 4 will be described with reference to FIGS. 1 and 7 to 9. As shown in FIG. 1, the light reflecting portion 4 has a light reflecting surface 37 that faces the driver's eye M. The light reflecting surface 37 is formed as a spheroid. When the ellipsoid 38 is rotated about the major axis L of the ellipse 38 shown in FIG. 7 as the rotation axis, the ellipsoid 38 is formed by a surface 37 on which a part of the ellipse is scanned as shown in FIG. Is formed.

  The ellipse 38 has two focal points M and N as shown in FIG. Here, as a general property of the ellipse 38, as shown in FIG. 7, the light emitted from the light source arranged at one focus M and reflected by the ellipse 38 gathers at the other focus N. There is a characteristic. Since the light reflecting surface 37 is formed as a spheroidal surface as described above, as shown in FIG. 9, the light reflecting surface 37 exits from one focal point M and is positioned at any position on the light reflecting surface 37, for example, FIG. Even light reflected by a, b, c, and d is collected at the other focal point N.

  Accordingly, the scanning unit 4 is attached to the apparatus frame 2 so that the scanning unit 4 that emits the modulated light S is positioned at one focal point M of the ellipse 38, and the driver N is disposed at the other focal point N. By forming the device frame 2 so that the eye M is positioned, the light emitted from the scanning unit 4 and reflected at any position on the light reflecting surface 37 as shown in FIG. Also, it is formed so as to gather in the driver's eyes M.

  Next, the operation of the retinal scanning display device 1 configured as described above will be described. First, it is assumed that the speed of the moving body is low, for example, less than 40 km / h. In this case, the driver is driving while focusing his / her eyes on a position in front and relatively close.

  When the driver operates a power switch (not shown) of the retinal scanning display device 1 to activate the retinal scanning display device 1, the distance control means 7 causes the mirror driving means 12 shown in FIGS. By controlling the voltage supplied to the constituting piezoelectric element, the position variable mirror 11 is aligned at a position a closer to the convex lens 10 than the focal position f of the convex lens 10 as shown in FIGS.

  In this state, the modulated light S output from the modulated light output unit 3 via the optical fiber 9 has its optical path changed by the half mirror 13, condensed by the convex lens 10, and reflected by the position variable mirror 11. . Incidentally, since the position variable mirror 11 is located at a position a closer to the convex lens 10 than the focal position f of the convex lens 10, the modulated light S reflected by the position variable mirror 11 is as shown in FIG. Since the focal point is formed after being reflected by the position variable mirror 11, the modulated light S reflected by the position variable mirror 11 and having passed through the convex lens 10 cannot be a parallel light beam, as indicated by a solid line in FIGS. In addition, it becomes a diffused ray.

  As shown in FIG. 2, the modulated light S that has been diffused in this way is vertically scanned between the half mirror 13 and the horizontal scanning mirror 29, between the horizontal scanning mirror 29 and the convex lens 30, and with the convex lens 31. The state of diffused light is stored between the mirror 32, between the vertical scanning mirror 32 and the convex lens 33, and between the convex lens 34 and the light reflecting portion 4, and enters the driver's eye M. That is, as shown in FIGS. 1 and 2, the light enters the driver's eye M in the form of diffused rays.

  For this reason, the driver recognizes that the image is located at the position P1 shown in FIGS. That is, since the driver recognizes that the image is present at the position P1 close to the driver's eye M, the driver focuses the eye M on the vicinity and looks at the vicinity of the eye M that is viewing the vicinity. An image can also be visually observed in a focused state.

  Next, a state in which the moving body has increased in speed and has become faster will be described. When the speed of the moving body is increased, it is common for the driver to focus on the distance and visually observe the distance.

  When the moving body is at a high speed, for example, 80 Km / h or more, the distance control means 7 controls the voltage applied to the piezoelectric element as the mirror drive unit 12 based on the output of the speed sensor 14 to change the position variable mirror 11. 4 and 5 are aligned with the focal position f of the convex lens 10 as shown in FIGS. In this state, as shown in FIGS. 4 and 5, the modulated light S transmitted by the optical fiber 9 is guided to the convex lens 10 by the half mirror 13, passes through the convex lens 10, and is collected on the position variable mirror 11. The modulated light S thus reflected is reflected by the position variable mirror 11. Here, since the position variable mirror 11 is located at the focal position f of the convex lens 10, the modulated light S reflected by the position variable mirror 11 passes through the convex lens 10 again and becomes a parallel light beam.

  As shown in FIG. 4, the modulated light S converted into parallel rays is vertically scanned between the half mirror 13 and the horizontal scanning mirror 29, between the horizontal scanning mirror 29 and the convex lens 30, and with the convex lens 31. Between the mirror 32, between the vertical scanning mirror 32 and the convex lens 33, and between the convex lens 34 and the light reflecting unit 4, the state of parallel rays is preserved and incident on the driver's eye M. That is, the light enters the driver's eye M in a parallel light beam state.

  For this reason, the driver recognizes that the image is located at the position P3 shown in FIG. That is, since the driver recognizes that the image exists at a distant position P3 that is separated from the driver's eye M, the driver can also visually check the image while the focus of the eye M is kept in the distance. can do.

  Further, when the speed of the moving body is a medium speed, for example, 40 Km / h or more and less than 80 Km / h, the position variable mirror 11 is positioned between the above-mentioned focal position f and position a, for example, FIG. 3 and 5, the driver recognizes that the image is optically present at the position P <b> 2 shown in FIG. 1.

  Thus, in the first embodiment, the position of the image recognized by the driver by the retinal scanning display device 1 can be made to approach or separate from the driver's eye M according to the speed of the moving body. The driver can recognize the image of the retinal scanning display device 1 without re-adjusting the focal position of the eye M during driving.

  10 and 11 show a second embodiment of the present invention. In the first embodiment, an image is displayed over the entire area of the image display area R. The feature of the second embodiment is that an image is displayed on a part L (indicated by a dotted line in the figure) of the image display area R. Is displayed. That is, as the speed of the moving body increases, as shown in FIG. 10, an image is displayed only on the upper portion L (indicated by a dotted line in the figure) of the image display region R, while the moving body is As shown in FIG. 11, the image is displayed only in the lower part L (indicated by a dotted line in the figure) of the image display region R as the speed decreases.

  The second embodiment provides the following operational effects. That is, when the speed of the moving body is high, the driver is viewing relatively far away, so the driver is viewing the upper part of the field of view. For this reason, when the speed of the moving body is high, by displaying the image only on the upper part of the image display region R, the driver can easily view the image without moving the eye M up and down. I can do it. On the other hand, when the speed of the moving body is low, the driver is viewing the vicinity relatively, so the driver is viewing the lower part of the field of view. For this reason, when the speed of the moving body is low, by displaying the image only at the lower part of the image display region R, the driver can visually observe the image without moving his eyes up and down. .

  In addition, in the above description, although the case where the driver | operator of the moving body is using this apparatus was demonstrated, you may make it a passenger other than a driver use.

  FIG. 12 shows a third embodiment of the present invention. The feature of this third embodiment is that it includes a sensor 41 that detects the state of the load applied to the moving body in the lateral direction and the state of the engine of the moving body, and this sensor 41 is applied to the moving body in the lateral direction. Is detected, that is, when the moving body turns or when the moving body engine is stopped, the blue light source driver 21, the green light source driver 20, and the red light source driver 19 are controlled to output the modulated light S. A stopping means 42 for stopping is provided.

  In such a configuration, when the sensor 41 detects the turning of the moving body, no image is displayed, so that the driver's attention is not hindered during the turning of the moving body. Further, when the sensor 41 detects that the moving engine has stopped, the stop means 42 controls the blue light source driver 21, the green light source driver 20, and the red light source driver 19 to control the modulated light S. The output is stopped urgently. When configured in this manner, the output of the modulated light S can be automatically stopped when the moving body is stopped.

  FIG. 13 shows a fourth embodiment. In the first and second embodiments described above, the distance control means 7 recognizes an image at a position away from the driver based on the output of the speed sensor 14 as the speed of the moving body increases. Then, as the speed of the moving body decreases, the image is recognized at a position approaching the driver. However, in the fourth embodiment, the line-of-sight detection device 51 for detecting the line of sight of the driver ( (E.g., described in JP-A-4-236935) instead of the speed sensor 14, and based on the output of the line-of-sight detection device 51, when the driver looks far away, that is, the speed of the moving body As the vehicle speed increases, the driver recognizes the image at a position away from himself / herself, while when the driver visually observes the vicinity, that is, as the speed of the moving body decreases, Recognizes the image at a position close to you In which was to so that. Even if comprised in this way, image information, such as traffic information, can be visually observed by the retina scanning display apparatus 1, without a driver | operator feeling dangerous during a driving | operation. In this way, when it is configured to detect the line of sight and display the image at a position corresponding to the line of sight, it can be widely used not only when the moving body is moving but also when it is stopped.

It is an external view of a retina scanning display apparatus. (First embodiment) It is a circuit block diagram of a distance variable means, a scanning part, a distance variable means, and a distance control means. (First embodiment) It is a circuit block diagram of a distance variable means and a distance control means. (First embodiment) It is a circuit block diagram of a distance variable means, a scanning part, a distance variable means, and a distance control means. (First embodiment) It is a circuit block diagram of a distance variable means and a distance control means. (First embodiment) It is a circuit block diagram of a modulated light output part. (First embodiment) It is explanatory drawing for forming the rotation ellipsoid which comprises a light reflection part. (First embodiment) It is explanatory drawing for forming the rotation ellipsoid which comprises a light reflection part. (First embodiment) In a light reflection part, it is a front view of the light reflection part for demonstrating reflection of light. (First embodiment) It is a front view of the light reflection part for showing the display position of the image which a driver recognizes. (Second Embodiment) It is a front view of the light reflection part for showing the display position of the image which a driver recognizes. (Second Embodiment) It is a circuit block diagram of a distance variable means, a scanning part, a distance variable means, and a distance control means. (Third embodiment) It is a circuit block diagram of a distance variable means, a scanning part, a distance variable means, and a distance control means. (Fourth embodiment) It is a partial perspective view which shows the structure of the retinal scanning display apparatus of a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Retina scanning display apparatus 2 Apparatus frame 3 Modulated light output part 4 Light reflection part 5 Scanning part 6 Distance variable means 7 Distance control means 8 Speed sensor 41 Sensor 42 Stop means 51 Eye-gaze detection apparatus

Claims (13)

A retinal scanning display device configured to display an image by scanning light according to an image signal on a retina of an eye,
Distance variable means for making the distance of the image variable, and distance control means for controlling the distance of the image by controlling the distance variable means according to the speed of the moving vehicle on board. A retinal scanning display device characterized by the above.     The distance control means controls the distance variable means so that the distance from the occupant to the image is separated from the occupant as the moving body becomes high speed. 2. A retinal scanning display device according to 1.     3. The retinal scanning display device according to claim 1, further comprising image display position control means for controlling a position for displaying an image in accordance with a speed of a moving body on board.     4. The retinal scanning display according to claim 3, wherein the image display position control unit controls an image display position to be an upper position in accordance with an increase in speed of the moving body. 5. apparatus.     The retinal scanning display according to claim 3, wherein the image display position control unit controls the position of displaying an image to be a lower position as the speed of the moving body becomes lower. apparatus. A retinal scanning display device configured to display an image by scanning light according to an image signal on the retina,
A distance variable means for making the distance to the image variable; and a distance control means for controlling the distance of the image by controlling the distance variable means in accordance with the eye gaze direction. Retina scanning display device.     6. The retina scanning according to claim 5, wherein the distance control unit controls the distance varying unit so that the distance to the image is separated from the eye as the line-of-sight direction becomes far away. Display device.     The retinal scanning display device according to claim 5 or 6, further comprising image display position control means for controlling a position for displaying an image in accordance with the line-of-sight direction.     2. The apparatus frame according to claim 1, further comprising: a device frame mounted on a wearer's head; and a scanning unit provided on the device frame and scanning the light on the retina of the eye. 8. The retinal scanning display device according to any one of items 7.     The retinal scanning display apparatus according to any one of claims 1 to 8, wherein the image signal is a traffic-related image signal.     The retinal scanning display device according to any one of claims 1 to 9, further comprising stop means for stopping the light output.     The retinal scanning display apparatus according to claim 10, wherein the stopping unit stops the output of the light when the moving body turns.     The retinal scanning display device according to claim 10, wherein the stopping unit stops the output of the light when the engine of the moving body is stopped.

Images