WO2005074266A1 - 画像表示装置および画像表示システム - Google Patents
画像表示装置および画像表示システム Download PDFInfo
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- WO2005074266A1 WO2005074266A1 PCT/JP2004/015418 JP2004015418W WO2005074266A1 WO 2005074266 A1 WO2005074266 A1 WO 2005074266A1 JP 2004015418 W JP2004015418 W JP 2004015418W WO 2005074266 A1 WO2005074266 A1 WO 2005074266A1
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- unit
- user
- image display
- image
- face
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/2007—Undercarriages with or without wheels comprising means allowing pivoting adjustment
- F16M11/2014—Undercarriages with or without wheels comprising means allowing pivoting adjustment around a vertical axis
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- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/2007—Undercarriages with or without wheels comprising means allowing pivoting adjustment
- F16M11/2035—Undercarriages with or without wheels comprising means allowing pivoting adjustment in more than one direction
- F16M11/2057—Undercarriages with or without wheels comprising means allowing pivoting adjustment in more than one direction for tilting and rolling
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- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
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- F16M11/2007—Undercarriages with or without wheels comprising means allowing pivoting adjustment
- F16M11/2035—Undercarriages with or without wheels comprising means allowing pivoting adjustment in more than one direction
- F16M11/2064—Undercarriages with or without wheels comprising means allowing pivoting adjustment in more than one direction for tilting and panning
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- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0132—Head-up displays characterised by optical features comprising binocular systems
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- G—PHYSICS
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- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
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- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0132—Head-up displays characterised by optical features comprising binocular systems
- G02B2027/0136—Head-up displays characterised by optical features comprising binocular systems with a single image source for both eyes
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- G—PHYSICS
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
- H04N5/7475—Constructional details of television projection apparatus
- H04N5/7491—Constructional details of television projection apparatus of head mounted projectors
Definitions
- the present invention relates to an image display device and an image display system used near an eyeball.
- An image display device generally includes a device for enjoying a display image by a plurality of people represented by a television and a projector, and a personal computer or a television set on a chair in an airplane, a mobile phone, or the like to individually display a display image. It can be classified into display devices for individuals who enjoy. In the former case, it is necessary to display an image at a position distant from the screen in order to be viewed by a plurality of people, which has a drawback that the size of the display is limited and a large space is required. On the other hand, the latter is for individuals, so displaying an image close to the screen is fine, and the image can be observed at the same angle of view as the TV or projector even if the screen itself is small. Because the focus position is close, the angle of view is also limited (no closer than 30-40 cm), the close focus makes it easy to get tired, and the wide-angle image with a viewing angle of 30 ° or more can be displayed. I could't get it.
- a force devised to solve the latter is a glasses-type display or a head-supported display, in which an image display unit is attached to a face with a structure like a head or a glasses frame, and a virtual image is viewed. To see a large screen at a distant focal point. However, it was necessary to use a light-weight dagger to wear it on the head, which was unsatisfactory in both image quality and angle of view. On the other hand, as a method of satisfying high performance in both image quality and angle of view, a heavy object in the image display section with high image quality and high angle of view is fixed at a position other than the user, and the image display section is moved in or the position of the line of sight. There is one that detects an image and causes the image display device to follow the actuator by using an actuator (for example, see Patent Documents 1 and 2).
- Patent Document 1 JP-A-5-293790
- Patent Document 2 JP-A-10-161058
- the heavy object If the heavy object is held externally while the force is applied, the heavy object may be driven near the face. Therefore, the heavy object may follow the face portion and the face may come into contact with the heavy object. Risk needs to be avoided.
- the entire field of view is shielded from light even on a personal display, it is not possible to view the image while checking external information.
- see-through for observing the surroundings and installing windows etc. around the glasses to observe the outside world have been devised for eyeglass-type displays and head-supported displays. There was a drawback that the original large-screen realism could not be obtained due to the drop.
- glasses-type displays and head-supported displays there is an inconvenience that even if it can be used for individuals, it cannot be enjoyed and enjoyed by multiple people.
- the present invention solves these problems, provides a safe, high-quality, high-angle image to a user in a space-saving manner, makes up for the disadvantages of an image display device for individuals, and allows multiple people to enjoy the image. It is an object to provide an image display device.
- the image display device of the present invention transmits light emitted from a two-dimensional light emitting type photoelectric element orthogonal to the light emission direction to the user via eyepiece optical systems corresponding to both eyes of the user.
- a display unit that projects onto the eyeball of the user, a support unit that supports the display unit in a part that does not contact the user, and a display unit that is supported by the display unit and is in contact with a side surface of the user's face.
- a face contact portion that sandwiches the face of the user and that can change the distance between the eyepiece optical system and the eye of the user is provided.
- the display unit displays a part of the face contact unit in accordance with a movement of the user's head and a distance between the eyepiece optical system and the user's eye. It can be moved as a fulcrum.
- the face contact portion contacts the side of the face by pinching both ears of the user, and has a sound output mechanism at a portion pinching the both ears.
- the face contact portion includes an elastic member for contacting the user's face side surface, and changes a width of the face sandwiched independently of the elastic member.
- the display unit changes a size of the image to be displayed according to a distance between the eyepiece optical system and the eye of the user.
- the display unit includes a face fixing member at a portion facing the front of the user's face, and the face contacting unit determines a distance at which the front of the user's face contacts the face fixing member.
- the front face of the user does not come into contact with the face fixing member, and the viewing direction of the user's eyes is changed relative to the display unit so that the user can relatively move around the axis passing through both ears. It is possible.
- the display unit is provided with the face fixing member vertically above and below the both eyes so as to avoid the frame of the user's eyeglasses, and the frame of the eyeglasses.
- a light shielding member that shields external light is provided on the left and right sides of the camera.
- the display unit includes a frame recognizing unit that recognizes the presence or absence of the user's eyeglass frame, and the face in the optical axis direction of the eyepiece optical system according to a recognition result by the frame recognizing unit.
- the thickness of the fixing member can be changed.
- the eyepiece optical system includes at least three lenses.
- the display unit comprises a lens that is the most distant from the eye in the eyepiece optical system and is a bonded lens.
- the lens closest to the eye in the eyepiece optical system is a lens whose at least one surface is a conic surface having a conic constant K ⁇ 0.
- the display unit includes a relay optical system and a diffusion plate between the photoelectric element and the eyepiece optical system, and transmits a transmission image of the diffusion plate to the eyepiece optical system.
- a relay optical system and a diffusion plate between the photoelectric element and the eyepiece optical system, and transmits a transmission image of the diffusion plate to the eyepiece optical system.
- the support section includes a balance section for canceling a moment of the display section with respect to the support section, and is provided along the support section, and a part of the support section is provided in a part of the balance section.
- a wiring is provided for connecting the fixed display unit to the outside.
- the support portion is extendable and contractible.
- the apparatus further includes an installation state detection unit that detects an installation state, and a support unit control unit that suppresses a change in expansion and contraction of the support unit when the installation state detection unit detects that the installation state has significantly deteriorated.
- an installation state detection unit that detects an installation state
- a support unit control unit that suppresses a change in expansion and contraction of the support unit when the installation state detection unit detects that the installation state has significantly deteriorated.
- the apparatus further includes an adjustment unit provided at a part of the support unit, the adjustment unit adjusting at least one of an installation angle of the support unit with respect to the floor unit and an installation angle of the display unit with respect to the floor unit.
- the support unit includes a vertical balance unit having a weight.
- the display unit when displaying the image, is capable of changing the contents of a central region and a peripheral region in a projection range, and projects the image with high definition in the central region;
- a first display for projecting the image with low definition in the peripheral region, and a high-definition projection of the entire image in the central region, and low-definition projection of an image different from the image in the peripheral region.
- the second display is capable of changing the contents of a central region and a peripheral region in a projection range, and projects the image with high definition in the central region;
- a first display for projecting the image with low definition in the peripheral region, and a high-definition projection of the entire image in the central region, and low-definition projection of an image different from the image in the peripheral region.
- the display unit when performing the second display, displays an image different from the image on the photoelectric element in a portion corresponding to the peripheral region.
- the display unit displays, in a portion corresponding to the peripheral region, an image having a predetermined pattern that becomes smaller as approaching the central region, using the photoelectric element. To display.
- the display unit when performing the second display, is configured so that, in a portion corresponding to the central region, the predetermined pattern is similar to and smaller than the predetermined pattern. Is displayed on at least a part of the outer periphery of a portion corresponding to the central region on the photoelectric element.
- the display unit projects the image to the peripheral area in a defocused state.
- the face contacting unit includes a motion detecting unit that detects a motion of the user's face, and the face contacting unit detects the motion of the user's face detected by the motion detecting unit.
- the display unit displays a table of an image to be displayed on the photoelectric element in a portion corresponding to the central area. Shift the display area.
- the display unit displays information relating to an operation by the user as an image different from the image in a portion corresponding to the peripheral area.
- the face contacting unit includes a motion detecting unit that detects a motion of the user's face, and in accordance with the motion of the user's face detected by the motion detecting unit, The display section shifts a display area of an image displayed on the photoelectric element in a portion corresponding to the central area, or shifts a display area for displaying information related to an operation by the user.
- an information recording unit for recording information relating to the user, and information relating to the user recorded in the information recording unit are read, and the display unit and the face contact unit are read based on the information.
- the image display system is characterized in that the two-dimensional light emitting type photoelectric element orthogonal to the light emission direction emits the emitted light through the eyepiece optical systems corresponding to both eyes of the user.
- a face contact portion supported by the display portion and in contact with the user's face, wherein the support portion is configured to display the display in accordance with an inclination of a back portion of the chair portion.
- the part is movable so as to follow the head of the user.
- the face contacting portion is provided in contact with a side surface of the user's face, and sandwiches the face of the user, and the display portion is adapted to move the head of the user. Accordingly, it is movable with a part of the face contact portion as a fulcrum.
- the support unit includes a balance unit that cancels a moment of the display unit with respect to the support unit.
- the support unit includes a string-shaped soft member that connects the display unit and the balance unit, and a friction relaxation mechanism that reduces friction generated in the soft member.
- the supporting portion includes stainless steel fiber as the string-shaped flexible member. I can.
- the support portion includes a non-type aramid fiber as the string-shaped flexible member.
- the support section includes a fall prevention mechanism for preventing the display section from falling when the flexible member is disconnected.
- the support portion includes a cover that covers a surface thereof.
- a wiring is provided within the support portion along the string-shaped flexible member, and a part of the wiring is connected to the outside of the display portion, the display portion being fixed to a part of the balance portion. Is provided.
- the support unit includes a weight in the balance unit, suspends and supports the display unit and the weight in a balance shape, and sets the weight of the display unit to M and the weight of the weight.
- the support portion is disposed adjacent to the backrest portion of the chair portion, and the chair portion maintains the inclination of the support portion with respect to the ground in a vertical direction when the backrest portion is inclined.
- a parallel link member is provided.
- the support unit is configured to display the display from within a range of an arc drawn by the head around the waist of the user. Evacuate parts.
- the support portion is extendable and contractible.
- the installation state detection unit for detecting the installation state the installation state detection unit
- a support unit control unit that suppresses a change in expansion and contraction of the support unit when detecting that the installation state has significantly deteriorated.
- an adjustment unit is provided on a part of the support unit and adjusts at least one of an installation angle of the support unit with respect to the floor unit and an installation angle of the display unit with respect to the floor unit.
- the support section includes a vertical balance section having a weight.
- the display unit when displaying the image, may be located at a center of the projection range. A first display for projecting the image with high definition in the central region and projecting the image with low definition in the peripheral region; and In the second display, the entire image is projected with high definition, and in the peripheral area, an image different from the image is projected with low definition.
- the display unit when performing the second display, displays an image different from the image on the photoelectric element in a portion corresponding to the peripheral region.
- the display unit displays, in a portion corresponding to the peripheral region, an image having a predetermined pattern that becomes smaller as approaching the central region, using the photoelectric element. To display.
- the display unit when performing the second display, is configured so that, in a portion corresponding to the central region, the predetermined pattern is similar to and smaller than the predetermined pattern. Is displayed on at least a part of the outer periphery of a portion corresponding to the central region on the photoelectric element.
- the display unit displays the peripheral area when performing the second display.
- the face contacting unit includes a motion detecting unit that detects a motion of the user's face, and the face contacting unit detects the motion of the user's face detected by the motion detecting unit.
- the display section shifts a display area of an image displayed on the photoelectric element in a portion corresponding to the central area.
- the display unit displays information relating to an operation by the user as an image different from the image in a portion corresponding to the peripheral area.
- the face contacting unit includes a motion detecting unit that detects a motion of the user's face, and the face contacting unit detects the motion of the user's face detected by the motion detecting unit.
- the display section shifts a display area of an image displayed on the photoelectric element in a portion corresponding to the central area, or shifts a display area for displaying information related to an operation by the user.
- an information recording unit for recording information relating to the user, and information relating to the user recorded in the information recording unit are read, and the display unit and the face contact unit are read based on the information.
- a control unit that controls
- a sound output unit is provided on a back portion of the chair unit and outputs sound information to the user.
- a vibrating unit that vibrates in conjunction with at least one of the vibration units.
- an image display device wherein light emitted from a two-dimensional light emitting type photoelectric element orthogonal to a light beam emission direction is transmitted to the user via eyepiece optical systems corresponding to both eyes of the user.
- a display unit that projects onto the eyeball of the user, a support unit including a balance unit that supports the display unit at a part that does not contact the user, and cancels a moment of the display unit with respect to the support unit;
- a face contact portion supported by a display portion and in contact with the user's face; and a display portion provided along the support portion and a part of which is fixed to a part of the balance portion.
- a wiring for connecting to the outside is provided along the support portion and a part of which is fixed to a part of the balance portion.
- the face contacting portion is provided in contact with a side surface of the user's face, and sandwiches the face of the user, and the display unit is adapted to move the head of the user. Accordingly, it is movable with a part of the face contact portion as a fulcrum.
- an image display device wherein light emitted from a two-dimensional light emitting type photoelectric element orthogonal to a light beam emission direction is transmitted to the user via eyepiece optical systems corresponding to both eyes of the user.
- a display unit that projects onto the eyeball of the user, a support unit that supports the display unit at a part that does not contact the user, and a face contact unit that is supported by the display unit and touches the user's face.
- the support portion is extendable and contractible.
- an installation state detection unit that detects an installation state
- a support unit control unit that suppresses a change in expansion and contraction of the support unit when the installation state detection unit detects that the installation state has significantly deteriorated.
- the face contact portion is provided in contact with a side surface of the user's face, and sandwiches the face of the user, and the display portion responds to the movement of the user's head, It is movable about a part of the face contact portion as a fulcrum.
- a display unit that projects onto the user's eyeball, a support unit that supports the display unit at a part that does not contact the user, and a face that is supported by the display unit and touches the user's face A contact part, and an adjusting part provided on a part of the support part and adjusting at least one of an installation angle of the support part with respect to the floor part and an installation angle of the display part with respect to the floor part.
- the support section includes a vertical balance section having a weight.
- the face contact portion is provided in contact with a side surface of the user's face, and sandwiches the face of the user, and the display portion responds to the movement of the user's head, It is movable about a part of the face contact portion as a fulcrum.
- an image display device wherein light emitted from a two-dimensional light emitting type photoelectric element orthogonal to a light beam emission direction is transmitted to the user via eyepiece optical systems corresponding to both eyes of the user.
- a display unit that projects onto the eyeball of the user, a support unit that supports the display unit at a part that does not contact the user, and a face contact unit that is supported by the display unit and touches the user's face.
- the display unit is capable of changing the contents of a central region and a peripheral region in a projection range when displaying the image, and projects the image with high definition in the central region.
- the display unit when performing the second display, displays an image different from the image on the photoelectric element in a portion corresponding to the peripheral region.
- the display unit displays, in a portion corresponding to the peripheral region, an image having a predetermined pattern that becomes smaller as approaching the central region, using the photoelectric element. To display.
- the display unit when performing the second display, is configured so that, at a portion corresponding to the central area, the predetermined pattern is similar to and smaller than the predetermined pattern.
- An image having a pattern on at least a part of an outer periphery of a portion corresponding to the central region is displayed on the photoelectric element.
- the display unit projects the image to the peripheral area in a defocused state.
- the face contacting unit includes a motion detecting unit that detects a motion of the user's face, and the face contacting unit detects the motion of the user's face detected by the motion detecting unit.
- the display section shifts a display area of an image displayed on the photoelectric element in a portion corresponding to the central area.
- the display unit displays information relating to an operation by the user as an image different from the image in a portion corresponding to the peripheral area.
- the face contacting unit includes a motion detecting unit that detects a motion of the user's face, and the face contacting unit detects the motion of the user's face detected by the motion detecting unit.
- the display section shifts a display area of an image displayed on the photoelectric element in a portion corresponding to the central area, or shifts a display area for displaying information related to an operation by the user.
- the face contact portion is provided in contact with a side surface of the user's face, and sandwiches the face of the user, and the display portion responds to the movement of the user's head, It is movable about a part of the face contact portion as a fulcrum.
- a display unit that projects onto the user's eyeball; a contact unit that is supported by the display unit and contacts the user's face; an information recording unit that records information about the user; and the information recording unit And a control unit that reads out information related to the user recorded in the storage unit and controls the display unit and the contact unit based on the information.
- the face contacting portion is provided in contact with a side surface of the user's face, and sandwiches the face of the user, and the display portion is adapted to move the head of the user. Accordingly, it is movable with a part of the face contact portion as a fulcrum.
- An image display system provides a two-dimensional light-emitting type photoelectric element orthogonal to a light beam emission direction, which emits light through an eyepiece optical system corresponding to each of both eyes of the user.
- a support portion for supporting, a face contact portion supported by the display portion and in contact with the face of the user, and an audio output portion provided on a back portion of the chair portion and outputting audio information to the user.
- a vibrating unit provided on the chair unit and vibrating in conjunction with at least one of the image and the acoustic information, wherein the support unit displays the display in accordance with an inclination of a back portion of the chair unit.
- the face contacting portion is provided in contact with a side surface of the user's face, and sandwiches the face of the user, and the display unit is adapted to move the head of the user. Accordingly, it is movable with a part of the face contact portion as a fulcrum.
- an image display device wherein light emitted from a two-dimensional light emitting type photoelectric element orthogonal to a light beam emission direction is transmitted to the user via eyepiece optical systems corresponding to both eyes of the user.
- a display unit that projects the image information on the eyeball, an audio output unit, a communication unit that externally inputs image information to the display unit, and inputs audio information to the audio output unit, and the display unit includes:
- An image display device comprising: a support portion that supports at a portion not in contact with the device; and a face contact portion that is supported by the display portion and contacts the user's face, wherein the communication portion includes the image display device. It is characterized by having a mechanism for switching infrared rays with slightly different wavelengths when installed and used near at least two units.
- the face contact portion is provided in contact with a side surface of the user's face, and sandwiches the face of the user, and the display unit is adapted to move the head of the user. Accordingly, it is movable with a part of the face contact portion as a fulcrum.
- an image display device wherein light emitted from a two-dimensional light emitting type photoelectric element orthogonal to a light beam emission direction is transmitted to the user via eyepiece optical systems corresponding to both eyes of the user.
- a display for projecting to the eyeball of the user, a sound output unit for outputting sound to both ears of the user, a voice input unit for inputting voice of the user, and the display unit,
- An image display device comprising: a support portion for supporting a portion not in contact with the user; and a face contact portion supported by the display portion and in contact with the user's face, wherein the image display device is at least two.
- the face contact portion is provided in contact with a side surface of the user's face, and sandwiches the face of the user, and the display unit is adapted to move the head of the user. Accordingly, it is movable with a part of the face contact portion as a fulcrum.
- an image display device wherein light emitted from a two-dimensional light emitting type photoelectric element orthogonal to a light beam emission direction is transmitted to the user via eyepiece optical systems corresponding to both eyes of the user.
- a display unit that projects the image on the eyeball of the user, a sound output unit that outputs sound to both ears of the user, a support unit that supports the display unit at a part that does not contact the user, and a display unit that It is characterized by comprising a contact portion supported and in contact with the user's face, and a switching portion for switching whether or not to output audio information from the outside by the audio output portion.
- the face contact portion is provided in contact with a side surface of the user's face, and sandwiches the face of the user, and the display portion is adapted to move the head of the user. Accordingly, it is movable with a part of the face contact portion as a fulcrum.
- an image display device that can safely provide a user with a space-saving high-quality image with a high angle of view, compensates for the disadvantages of an image display device for individuals, and can be enjoyed by a plurality of people. be able to.
- FIG. 1 is an external view of an image display device 1 according to a first embodiment.
- FIG. 2 is a top view showing how a face is sandwiched by a face sandwiching section 5.
- FIG. 3 is a top view showing a state in which the face sandwiching portion 5 is contracted to make contact between the face and the face fixing portion 6.
- FIG. 4 is a diagram showing a positional relationship between the face fixing unit 6 and glasses, and a conceptual diagram showing a variable state of eye relief depending on the presence or absence of glasses.
- FIG. 5 is a top view showing the appearance when the face is separated from the face fixing unit 6 by making the elastic member of the face sandwiching unit 5 elastic.
- FIG. 6 is a diagram illustrating eye relief and facial movement.
- FIG. 7 is a diagram showing the expansion and contraction mechanism of the face pinching portion 5 and the configuration of the pinching portion around the ear.
- FIG. 8 Diagram showing rotation of the ears and eyes in the figure showing that the face pinching part 5 is extended and the face does not follow the face movement without contacting the face with the face fixing part 6 without rotating the axis passing through both ears.
- FIG. 9 is an optical diagram of a relay magnification optical system.
- FIG. 10 is a view showing that there are two types of eye reliefs for the image display unit 2, and that the eyeball and the diffuser are conjugate under both conditions.
- FIG. 12 is an optical path diagram (a) when the eye relief is 10 mm and an optical path diagram (b) when the eye relief is 30 mm in the eyepiece optical system 31 of the first method.
- FIG. 13 is an MTF output diagram when the eye relief is 10 mm (a) and an MTF output diagram when the eye relief is 30 mm (b) in the eyepiece optical system 31 of the first method.
- FIG. 14 is a line graph showing the amount of distortion when the eye relief is changed every 10 mm to 10-30 mm in the eyepiece optical system 31 of the first method.
- FIG. 16 shows an optical path diagram (a) when the eye relief is 10 mm and an optical path diagram (b) when the eye relief is 30 mm in the eyepiece optical system 31 of the second method.
- FIG. 17 shows an MTF output diagram when the eye relief is 10 mm (a) and an MTF output diagram when the eye relief is 30 mm (b) in the eyepiece optical system 31 of the second method.
- FIG. 20 is an optical path diagram (a) when the eye relief is 10 mm and an optical path diagram (b) when the eye relief is 30 mm in the eyepiece optical system 31 of the third method.
- FIG. 21 shows an MTF output diagram when the eye relief is 10 mm (a) and an MTF output diagram when the eye relief is 30 mm (b) in the eyepiece optical system 31 of the third method.
- FIG. 22 is a line graph showing the amount of distortion when the eye relief is changed every 10 mm to 10-30 mm in the eyepiece optical system 31 of the third method.
- FIG. 23 is an external view of an image display system 50 of a second embodiment.
- FIG. 24 is a view for explaining a support portion 54.
- FIG. 25 is a diagram showing a mechanism around a rotation axis of ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ .
- Fig. 26 is a side view showing that there is no obstacle near the head when the body is raised while sitting.
- FIG. 27 is a side view showing a state where the backrest of the chair is reclined.
- FIG. 28 is a side view showing that there is no obstacle near the head when the body is raised in the reclining state.
- FIG. 29 is a diagram illustrating the wiring in the third embodiment.
- FIG. 30 is a view of the support portion 54 of the image display device 170 according to the fourth embodiment as viewed from above.
- FIG. 31 is a diagram illustrating only the configuration of the moving mechanism in the ⁇ direction with respect to the support unit 54 of the image display device 170 in the fourth embodiment.
- FIG. 32 is an external view of the image display system 180 according to the fifth embodiment as viewed in the lateral direction.
- FIG. 33 is an external view of an image display system 180 according to the fifth embodiment.
- FIG. 34 is a diagram illustrating the inclination of the ground.
- FIG. 35 is a diagram illustrating an image displayed by an image display device 190 according to the sixth embodiment.
- FIG. 36 is a view for explaining the screen size of the image in the central area!
- FIG. 37 is a diagram illustrating a control system of an image display device 190 according to a sixth embodiment.
- FIG. 38 is a diagram illustrating an image displayed by an image display device 190 according to the sixth embodiment.
- FIG. 39 is a diagram illustrating an image displayed by an image display device 190 according to the sixth embodiment.
- FIG. 40 is a diagram illustrating an image displayed by an image display device 190 according to the sixth embodiment.
- FIG. 41 is a diagram illustrating an image displayed by an image display device 190 according to the sixth embodiment.
- FIG. 42 is a diagram illustrating an image displayed by an image display device 190 according to the sixth embodiment.
- FIG. 43 is an external view of an image display device 120 according to the seventh embodiment.
- FIG. 44 is an external view of an image display device 130 according to the eighth embodiment.
- FIG. 45 is an external view of an image display device 150 according to the ninth embodiment.
- the image display device 1 includes an image display unit 2, a sound output unit 3, and a support unit 4, as shown in FIG.
- the image display unit 2 outputs light emitted from a two-dimensional light emitting type photoelectric element (not shown) orthogonal to the light emission direction via eyepiece optical systems (details will be described later) corresponding to both eyes of the user. Project onto the user's eyeball.
- the sound output unit 3 is disposed so as to sandwich both ears of the user with an elastic member described later, and outputs sound.
- the support unit 4 supports the image display unit 2 at a portion where the image display unit 2 does not contact the user.
- the image display unit 2 supports the face sandwiching unit 5.
- Figure 2 FIG. 2A shows a state before the user's face is pinched by the face pinching section 5
- FIG. 2B shows a state after the user's face is pinched by the face pinching section 5.
- the image display section 2 includes a face fixing section 6 and an external light blocking plate 7, and further, a face width changing section is provided at the tip of the face sandwiching section 5.
- a frame 8 is rotatably mounted by a face width changing mechanism 9.
- a rotating shaft 11 of the sound output unit 3 is provided at the tip of the face width changing frame 8, and an ear frame fixing unit 12 is provided outside the sound output unit 3.
- the left side will be described. The same applies to the right side.
- the face width changing frame 8 By moving the face width changing mechanism 9 in the direction of arrow A, the face width changing frame 8 approaches the ear 10. Then, the sound output unit 3 is in contact with the ear 10 in parallel with the rotation axis 11 as the center of rotation, and the ear 10 is completely covered by the ear frame fixing unit 12, and the face is pinched as shown in FIG. 2 (b). No. Here, an elastic member 13 is interposed at the base of the face width changing frame 8, and serves as a cushion for preventing the ear 10 from being caught by excessive force! /.
- the face sandwiching section 5 moves symmetrically to the left and right, the face sandwiching section 5 is adjusted so that the centers of both eyes of the user and the centers of the respective eyepieces substantially coincide with each other.
- the face width changing mechanism 9 is equipped with a stopper mechanism (not shown) that powers freely by grabbing the handle part and turns off when the handle part is released.When the knob part is released at any position, the stopper force S is applied. The width of the face sandwiched by the face sandwiching section 5 can be fixed.
- FIGS. 3 (a) and 3 (b) show changes in the distance between the eyepiece optical system (not shown) of the image display unit 2 and the user's eye (hereinafter referred to as “eye relief”).
- eye relief shows changes in the distance between the eyepiece optical system (not shown) of the image display unit 2 and the user's eye (hereinafter referred to as “eye relief”).
- FIG. Note that the same reference numerals as those in FIG. 2A and FIG.
- the image display unit 2 includes an eye relief variable mechanism 14, as shown in FIGS. 3 (a) and 3 (b).
- the variable eye relief mechanism 14 By moving the variable eye relief mechanism 14 in the direction of arrow B, the eye relief can be contracted.
- FIG. 3 (a) shows a state before the eye relief is contracted
- FIG. 3 (b) shows a state where the eye relief is contracted and the face of the user and the face fixing part 6 are in contact.
- the weight of the image display unit 2 is supported by the external support unit 4, and the weight is applied to the face or head like a glasses-type display or a head-mounted display.
- a glasses-type display is used for both holding weight and fixing the relief, while a head-mounted display uses a head for the display.
- the spray is fixed, and the eye relief is determined by the fixing part.
- the position of the image display unit 2 is determined according to the position of the ear 10 by pinching the face, it is not necessary to hold the weight of the image display unit 2. . Therefore, if the positional relationship between the ear 10 and the ear frame fixing portion 12 is determined, a new feature is created in which the eye relief can be set at an arbitrary distance by extending and contracting the face sandwiching portion 5. For this purpose, it is preferable that the image display unit 2 is attached to the face in such an order that the face is first sandwiched, the positional relationship between the ear 10 and the ear frame fixing unit 12 is determined, and then the eye relief is determined.
- FIG. 4 is a view for explaining the face fixing unit 6 which can support any user wearing glasses or a user.
- Fig. 4 (a) is a front view showing the positional relationship when the face of the user wearing glasses comes into contact with the face fixing unit 6, and the circle shown at 15 is closest to the user's eyes. The eyepiece 15 is shown.
- FIG. 4 (b) is a side view at that time
- FIG. 4 (c) is a side view when the external light blocking plate 7 is not shown to show the expansion and contraction of the thickness of the eye relief and the face fixing portion 6. .
- the face fixing portions 6 are installed on the upper and lower sides of the eyepiece 15 avoiding the glasses frame portion 16.
- outside light blocking plates 7 that block external light are installed on the left and right outside the end of the glasses frame, and as shown in Fig. 4 (b), the user's field of view is set to 180 ° and image display is performed.
- the structure is such that outside light does not enter from outside the range.
- there is a projection 17 at the end of the eyeglass frame for recognizing the presence or absence of the eyeglasses. When the projection 17 is pressed against the end of the eyeglass frame, the stopper 18 operates as shown in FIG.
- the face fixing portion support mechanism 20 is prevented from expanding and contracting with respect to the lens frame 19.
- the face fixing part 6 was originally designed with a length of about 20 mm, and when the eye relief of the eyeball position of the glasses and the user was 15 mm, the face fixing part 6 was At the point of contact with the skin above the bone around the eye, the eyeglasses 15 do not come into contact with the eyeglasses, even if the thickness of the glasses is 2-3 mm. That is, it is possible to view an image with eye relief of 20 mm while wearing glasses.
- FIG. 4 (d) is a diagram showing a case where a user who does not wear glasses uses the same, and the protrusion 17 is not pressed because the end of the magne frame does not exist. Therefore, the stopper 18 does not operate, and the face fixing unit supporting mechanism 20 is extended and contracted until the face fixing unit 6 comes into contact with the skin above the bone around the eyes and the force eye relief becomes 10 mm. As a result, the face fixing portion 6 has a length of 1 Omm, and the image can be viewed with an eye relief of 10 mm. In this way, it is possible for a user wearing glasses to view an image under the optimum condition of an eye relief of 20 mm and a user of not wearing an eye relief of 10 mm.
- FIG. 5 (a) shows that the user enjoys the image on the image display unit 2 by the method described above.
- the image display unit 2 and the face are positioned under optimal conditions by the face sandwiching unit 5, and the user enjoys the image in a comfortable state.
- some image information may cause VE sickness due to too high a sense of reality, and eyestrain may occur due to continuous viewing for a long time.
- an emergency situation in which the user may turn his / her eyes to the outside due to input information of external force may occur.
- the ear frame fixing portion 12 is directly held with both hands without using both the face width changing mechanism 9 and the variable relief mechanism 14, and the elastic member 13 is deformed as shown in FIG. Move the face from the image display unit 2 as shown in b).
- the elastic member 13 is composed of a panel panel designed not to exceed the elastic limit, and a mechanism that allows the ear frame fixing part 12 to be separated from the face using the panel, and the eye relief is again variable on the face If the mechanism 14 is brought into contact with the ear frame fixing portion 12 so as to match the ear 10, and the original state is restored, the previous state can be reproduced.
- FIG. 6 (a) is a side view of the state of FIG. 3 (b)
- FIG. 6 (b) is a side view of the state of FIG. 3 (b) with the face down.
- FIG. 6 (a) the user's face is completely fixed by the ear frame fixing part 12 and the face fixing part 6 of the face pinching part 5, so that, for example, the face is lowered as shown in Fig. 6 (b).
- the image display unit 2 also moves while rotating downward.
- you are not wearing glasses for example, you are viewing images with an eye relief of 10 mm, and the screen is displayed in the direction of moving the face
- FIG. 6 (c) the face sandwiching portion 5 is extended, and the state of FIG. It shows the state as seen from above. Therefore, the face fixing part 6 and the face are completely separated. In this state, the face is constrained in most directions by the ear frame fixing part 12 of the face pinching part 5, but there is a degree of freedom only around the axis passing through both ears, as shown in Fig. 6 (d). Face down (rotate around the axis passing through both ears), or fix the face and raise image display section 2 upward (rotate up around the axis passing through both ears) to display the image. It is possible to divert the eye from part 2 in another direction. In this case, the image display unit 2 which was located near the mouth which can be simply turned away from the eyes is also separated by turning the face downward, so that meals and snacks can be easily taken.
- FIG. 7 (a) is a diagram showing the pinching configuration around the ear 10 when the face pinching portion 5 is contracted
- Fig. 7 (b) is an ear when the face pinching portion 5 is extended
- FIG. 3 is a diagram showing a pinching configuration around 10 in detail.
- the member 21 is a part fixed to the image display unit 2, and the member 22 holding the part including the sound output unit 3 is connected by a linear guide 23 so as to be able to move in parallel (the wavy line indicates the ear 1). Since there is a face width changing mechanism 9 for 0, it is not shown here).
- the face width variable frame 8 approaches the ear 10, the sound output unit 3 is in contact with the side of the face about the rotation axis 11 as the center of rotation, and the ear frame fixing unit 12 completely covers the ear 10.
- the ear 10 and the image display unit 2 can arbitrarily determine the eye relief of the eye and the eyepiece by the parallel movement by the linear guide 23 because the lens is sandwiched between them.
- FIG. 5 is a diagram showing a relationship between the image display unit 2 and the image display unit 2.
- the ear 10 is completely covered by the ear frame fixing portion 12.
- the face fixing part 6 and the face are completely separated as shown in FIGS. 8 (a) and 8 (b). Therefore, unlike the case where the face fixing part 6 and the face are in contact with each other, the degree of freedom in the rotation direction around the axis perpendicular to the paper plane passing through both ears is allowed as shown in Fig. 8 (a) to Fig. 8 (b). Have been.
- the direction of the line of sight can be removed from the image display unit 2 as indicated by the arrow D and the arrow E.
- the same can be achieved by turning the image display unit 2 around the rotation axis as described above with the face turned straight. This is effective for constantly watching the external environment while listening to the sound from the sound output unit 3, eating and snacking while watching the image, and relieving the eyes from the image.
- the image display unit 2 is supported by the support unit 4 and has a degree of freedom only in a rotation direction about an axis perpendicular to the plane of the paper passing through both ears, the image can be viewed immediately by returning the face position to the original position. This eliminates the hassle of removing and re-adjusting the main unit each time.
- FIG. 161G, 161B, and 161R are two-dimensional light emitting optical elements that emit green, blue, and red images, respectively, and the images are combined by a three-color combining prism 162.
- These two-dimensional light emitting optical elements include a liquid crystal display element and an organic EL element using an LED light source as a knock light.
- the image display unit 2 includes two sets of the above-described optical elements 161G, 161B, 161R and a three-color combining prism 162.
- the image display unit 2 has a relay magnifying optical system, and the relay magnifying optical system includes zoom optical systems 28 and 29 and a half prism 30 as shown in FIG. Then, the size of the image can be changed by driving the zoom optical systems 28 and 29. Further, the images guided from the zoom optical systems 28 and 29 are synthesized by the half prism 30 and guided to an eyepiece optical system (not shown). In combining images, the sizes of the two images may or may not be the same. Further, one may be an image near the center and the other may be an entire image. Further, by replacing the half prism 30 with another optical element, the image guided from the zoom optical systems 28 and 29 may be separately guided to the right and left eyepiece optical systems.
- the projection image enlarged by the above-described relay magnification optical system is a screen image shown in FIG. It is projected above.
- this image is a screen image shown in FIG. It is projected above.
- the eyepiece optical system 31 is an important point.
- the eyepiece optical system 31 plays a role in maintaining the screen 32 and the retina in the eyeball in a conjugate positional relationship.
- the structure has at least two types of eye reliefs.
- the viewing angle of the image on the screen 32 is also large because the viewing angle of the image on the screen 32 can be increased.
- the amount of light that can pass through the pupil of the eye within the same viewing angle increases, and the image can be recognized as a large image.
- Fig. 10 it has been described that the screen 32 and the retina in the eyeball have a conjugate positional relationship.
- the screen 32 and the retina are infinite. It is an image, and even if the eye relief is released, the image can be observed only by reducing the viewing angle.
- the condition is as if the user is looking at an object at a short distance. Even if the eye relief is released in this state, the user's eyes have the focusing function, so that it is possible to observe the image in the same manner.
- the eyepiece optical system 31 when the eye relief is wide as shown in FIG. 10 (b), the visual angle of the eyesight is reduced, and the transmitted image in which the angle of view of the image on the screen 32 is also generated is transmitted through the eyepiece optical system 31.
- the amount of light that can pass through and pass through the pupil of the eye within the same viewing angle is also reduced.
- the image becomes smaller than that in FIG. That is, in order to provide at least two types of eye relief, it is desirable that the characteristics of the eyepiece optical system 31 be good at at least two distances.
- the eye relief optical system 31 and the eye are used in the present embodiment in which the eye relief is used at a fixed position without being used while flying or violently moving.
- the eye relief that allows the line of sight to be displaced from the image display unit 30 mm the following study was conducted as an example, in which ⁇ 30 ° images with high realism could be obtained at both eye relief positions. Do.
- a single convex lens can obtain an angle of view of about ⁇ 30 ° by increasing the curvature.
- the peripheral aberration increases and the distortion also increases.
- Example with this condition For example, considering 10 mm and 30 mm eye reliefs, a large thread-shaped distortion of 15% or more occurs at the long side of the eye relief at a rate of change of more than twice, making it difficult to set two types of eye reliefs. turn into.
- distortion is not a concern on a large screen of 10% or less, and the amount that can be tolerated is 15% or less. Therefore, a single convex lens cannot satisfy the specifications, and the possibility is high!
- the eyepiece optical system 31 is constituted by at least three lenses.
- Fig. 11 uses a glass material LAC7 with a low refractive index but small chromatic dispersion with an eye relief of 10 mm to obtain a wide viewing angle, and three convex lenses L1, L2, and L3 with a curvature of 220 cm from the left side of the drawing. It is an optical diagram at the time of arrange
- the aberration is generally a combination of a convex lens and a concave lens.
- a concave lens is not suitable for obtaining a wide viewing angle where the effect of deflecting the peripheral light beam is small. Therefore, here, a method is used in which all the lenses are composed of convex lenses and the aberrations are suppressed by reducing the curvature of each lens.
- the light beam in FIG. 11 (a) is 30 ° from the center of the left eye and is 15 °. , 0 °, 15 °, 30 °, 45 °, 60 °, considering the central power even with the right eye — 30 °, —15 °, 0 °, 15 °, 30 °, 45 °, 60 °
- An angle of view is obtained, and as shown in FIG. 11 (b), it can be seen that an image with a viewing angle of ⁇ 30 ° viewed by both eyes and an overall viewing angle of ⁇ 60 ° is obtained.
- the lenses are overlapped on the left and right, it is necessary to cut off that part.
- FIGS. 12 (a) and 12 (b) show the luminous flux when the eyepiece optical system 31 is set to the eye relief of 10 mm and 30 mm, respectively.
- the viewing angle seen by both eyes is about ⁇ 25 °
- the image is slightly vignetting.
- it can be confirmed that the image can be viewed in the above-mentioned viewing angle range of ⁇ 30 ° even in the both eye relief state.
- Fig. 13 shows the evaluation of the optical drawing of Fig. 12.
- Fig. 13 (a) shows the MTF output when the eye relief is 10 mm
- Fig. 13 (b) shows the MTF output when the eye relief is 30 mm.
- the MTF output diagram is shown.
- the resolution is only about 4cyclesZmm at a minimum of about 4cyclesZmm at a force MTF of 30% depending on the pattern direction (0. 25mm LZS is recognizable).
- FIG. 14 shows the distortion at each viewing angle for each of these eye reliefs. As shown in Fig. 14, it can be confirmed from the graph of the eye relief 30 mm that the above-mentioned tolerable amount of 15% or less was cleared under all conditions.
- the present embodiment is used when the image quality is relatively low, such as watching a moving image on a large screen. Therefore, since it can be designed at low cost, it can be used sufficiently in a system equipped with a variable eye relief mechanism.
- the eyepiece optical system 31 is configured with at least three lenses, and is kept farthest from the eyes in order to maintain a large screen and perform chromatic aberration correction! /
- the lens was composed of a cemented lens combining a convex lens surface and a concave lens surface.
- the material of the L4 and L5 lenses is NLAK8, the material of L6 is NBAK4, and the material of L7 is SF10. -25mm), L5 lens (125mm, -70mm), L6 lens (40mm), L7 lens (40mm, 30mm).
- the luminous flux is 1 46 °, 1 30 °, 1 15 °, 0 °, 15 °, 30 °, 46 ° with respect to the center of the left eye.
- Angle of view, right eye and center power Considering that 46 °, 30 °, 30 °, 15 °, 0 °, 15 °, 30 °, 46 ° angle of view can be obtained.
- the viewing angle seen by both eyes is 46 °, and the same force viewing angle is only ⁇ 46 °. You can see that there is not. However, in this case, since the lens diameter is small, it is relatively easy to adjust the interpupillary distance.
- FIGS. 16 (a) and 16 (b) show the luminous flux when the eyepiece optical system 31 is set to an eye relief of 10 mm and 30 mm, respectively.
- the viewing angle that can be seen with both eyes is about ⁇ 30 °, and it can be confirmed that images can be viewed in both eye relief states within that range.
- Fig. 17 shows the evaluation of the optical drawing of Fig. 16.
- Fig. 17 (a) shows the MTF output when the eye relief is 1 Omm
- Fig. 17 (b) shows the MTF output when the eye relief is 30mm.
- the MTF output diagram at the time is shown.
- the viewing angle is ⁇ 15, as shown in FIG.
- the MTF 30% is at least about 22 cyclesZmm at the minimum (45 ⁇ m LZS can be recognized), and even at the viewing angle of 30 °, the MTF 30% resolves to about 6 cyclesZmm (167 ⁇ m LZS Can be recognized). This is also due to the significant contribution of the chromatic aberration correction by the cemented lens, and it is at a level where ordinary characters can be resolved without any problems even on computer screens.
- the MTF 30% is only about 4 cyclesZmm at the viewing angle ⁇ 15 ° (the LZS of 0.25 mm can be recognized). Even at a position with a viewing angle of 30 °, MTF 30% can only resolve about 3 cyclesZmm! Mm (0.33mm LZS can be recognized). Therefore, when watching a large-screen moving image, the user is almost not bothered, but a computer screen suffers from problems such as difficulty in reading characters in peripheral portions.
- FIG. 18 shows the distortion at each viewing angle for each of these eye reliefs.
- the distortion as a tolerable amount clears 15% or less under all conditions.
- the distortion changes slightly. If you are accustomed to seeing the image at the eye relief 10mm! /, You may feel a little uncomfortable with the change in the de-station.
- the screen area to be operated is set to about ⁇ 20 °, the change in distortion is at a level that does not matter much. In other words, if a certain limit is imposed on the screen size at an eye relief of 10 mm, this eyepiece can be designed at a low cost, so that it can be used sufficiently in a system equipped with a variable eye relief mechanism.
- the eyepiece optical system 31 is configured by at least three lenses, the lens farthest from the eye is formed by a cemented lens, and the binocular power is also minimized.
- a close lens was constructed with a lens having a conic surface with a conic constant K ⁇ 0 on one side.
- Fig. 19 (a) shows that the material of L8 is SLAH66, the material of L9 is SLAH55, the material of L10 and L13 is SLAH58, and the material of L11 and L12 is SNPH2.
- Approximate curvature is L8 lens ( ⁇ , –3 lmm, conic constant –1.3 hyperboloid), L10 lens ( ⁇ , –66 mm), L11 lens ( ⁇ , –53 mm), L12 lens (–53 mm, ⁇ ), L13 lens ( ⁇ , 42 mm), and L14 lens (42 mm, 150 mm).
- the luminous flux is considered from the center of the left eye at ⁇ 60 °, ⁇ 45 °, ⁇ 30 °, ⁇ 15 °, 0 °, 15 ° , 30 °, 45 °, 60 ° angle of view, considering right eye and center power – 60 °, –45 °, –30 °, –15 °, 0 °, 15 °, 30 °, 45 °, 60 ° Is obtained.
- This uses an aspheric surface with a conic constant ⁇ 0 instead of reducing the curvature of the lens closest to the eye, thereby improving the aberrations that occur when the curvature of the lens is originally small, and also improving the aberration as described above.
- This is the result of improving various aberrations by using two convex lenses and employing a bonding lens.
- the viewing angle seen by both eyes is ⁇ 60 °, which also achieves a viewing angle of ⁇ 60 °, which is almost the same size as the spectacle field. It can be seen that the corner has been obtained.
- an aspherical surface since an aspherical surface is used, there is a disadvantage that it is expensive.
- a non-spherical surface glass material having a refractive index as high as possible and easy to process.
- a glass material with a large chromatic dispersion is combined with a glass material with a small chromatic dispersion, and in order to improve the yield of glass material arrangement, the thickness of the glass material is limited. Divide the 11 and LI 2 lenses into two!
- FIG. 20 (a) and FIG. 20 (b) show the luminous flux when the eyepiece optical system 31 is set to an eye relief of 10 mm and 30 mm, respectively.
- a viewing angle that can be seen with both eyes is ⁇ 30 ° or more. Also, when compared with ⁇ 30 °, it can be confirmed that the image can be viewed well in both eye relief states within that range.
- Fig. 21 is an evaluation of the optical drawing of Fig. 19, where Fig. 21 (a) shows the MTF output when the eye relief is 1 Omm, and Fig. 21 (b) shows the MTF output when the eye relief is 30 mm.
- the MTF output diagram at the time is shown.
- the viewing angle is ⁇ 15, as shown in FIG.
- 30% of MTF is about 14 cyclesZmm (LZS of 71 ⁇ m can be recognized), and even at a viewing angle of ⁇ 30 °, 30% of MTF resolves to about 4 cyclesZmm (LZS of 0.25 mm is recognized) Can be confirmed).
- This is a level where normal characters can be resolved without problems on computer screens up to ⁇ 15 °, and large-screen videos can be viewed without problems up to ⁇ 30 °.
- the MTF 30% can resolve about 15cyclesZmm (LZS of 67 ⁇ m can be recognized), and the viewing angle is 30 ° Even at the position, 30% of the MTF resolves about 4 cyclesZmm (LZS of 0.33mm can be recognized), so it is possible to obtain an image that is almost the same as when the eye relief is 10mm.
- FIG. 22 shows the distortion at each viewing angle for each of these eye reliefs.
- 10% or less of the above-mentioned distortion amount that is hardly noticeable was cleared under all conditions, and as compared with other optical systems, the distortion amount increased as the eye relief increased. It has the characteristic of becoming smaller. This means that the user can enjoy the realism of a large screen at the position of the eye relief 1 Omm, and can enjoy a good image with a viewing angle of 30 ° even at the position of the eye relief 30 mm.
- the optical system according to the present invention is configured to exhibit the most effective performance.
- the angle of view is set to 60 ° taking into account the eye relief at 10-30 mm. If the angle of view is set to be as small as possible using this embodiment, the mechanism can be realized with an eye relief of 30 mm or more.
- a display unit that displays an image
- a support unit that supports the display unit at a part that does not contact the user
- a display unit that is supported by the display unit and is located on the side of the user's face It is provided so as to be in contact with, and has a face sandwiching portion that sandwiches the face of the user and that can change the distance between the eyepiece optical system and the eye of the user. Therefore, the number of options for the distance between the display unit and the face increases, and the display unit can be attached to the face according to the situation.
- the face sandwiching portion is provided in contact with the side surface of the user's face, and also sandwiches the user's face
- the display portion is used in conjunction with the movement of the user's head and the eyepiece optical system by the face sandwiching portion. It is possible to move with a part of the face sandwiching portion as a fulcrum according to the distance between the person and the eyes. Accordingly, the first eye relief state in which the image display section follows the movement of the user's face almost completely makes it possible to appreciate an image with high image quality and a high angle of view in a highly realistic state.
- the viewing angle is 60 °.
- the face sandwiching portion contacts the side of the face by sandwiching both ears of the user, and includes an acoustic output mechanism in a portion sandwiching both ears. Therefore, even if the viewing angle is reduced by the transition to the first eye relief state force and the second eye relief state described above, the position of the sound output mechanism and the position of the ear remain unchanged. Therefore, it is possible to receive the audio information without change, and it is possible to perform a meal, a contact with another person, and the like while maintaining a high sense of presence.
- the face sandwiching portion includes an elastic member for contacting the user's face side, and changes the width of the face sandwiching independently of the elastic member. Change the eye relief with. Therefore, the compression degree of the pinch is determined by the width changing section, but since the compression is performed via the elastic member, the compression is not more than necessary and a comfortable pinch state can be maintained according to the width of both ears. it can. Furthermore, as a procedure, first, the ear position and the face sandwiching portion are positioned, but since the face and the image display portion are not in contact at that time, the face may hit the convex portion of the image display portion at the time of wearing. The defect is Does not occur.
- the face is brought into contact with the image display device by changing the eye relief, but since the positioning on the plane orthogonal to the optical axis of the image has already been performed by the face sandwiching portion, the eyes are moved to the convex portion of the image display portion. No problem such as hitting occurs.
- the eye relief can be expanded and contracted according to the distance between the ear and the face, it is possible to maintain a comfortable contact state.
- the position of the image display unit and the eye are maintained in a predetermined relationship (a state in which the center of the eye is located at the center of the lens) while following the movement of the face. This causes the image display to move, but in an emergency, the face pinching mechanism can be expanded directly.
- the elastic member allows the face to be spread within the elastic limit, so that the face can be quickly separated from the image display unit in an emergency or when an external force is used.
- the elastic member returns to its original position, if it is desired to view the image again, the previously adjusted eye relief and face pinching width can be maintained, and there is no need to reattach or adjust.
- the size of the image displayed on the image display unit by controlling the size of the image displayed on the image display unit to be automatically changed in accordance with the eye relief, even if the eye relief is changed, there is no discomfort. It is possible to appreciate an image of an appropriate size.
- the display unit includes the face fixing unit at a portion facing the front of the user's face, and the front of the user comes into contact with the face fixing unit and the display unit and the user's face.
- the first eye relief state in which the distance to the eyes is kept constant, the user's front face does not touch the face fixing part, and the user's gaze directions with respect to the display part are both.
- the state can be changed to a second eye relief state that can relatively move around an axis passing through the ear. Therefore, in the first eye relief state, since the face fixing portion comes into contact with the skin on the bone around the eyeball, the contact between the eye and the eyepiece is avoided, and the image display portion is moved in the face direction for some reason.
- the face fixing portion and the face are not in contact with each other, but the face pinching mechanism is arranged so as to surround the circumference of the ear, and the face can be rotated about the aforementioned axis. Is possible.
- the risk of injury to the face is similarly reduced even if the image display unit is pressed in the face direction for any reason or if the face falls forward due to drowsiness. Can be avoided. While maintaining such a safe state, images and And enjoy the sound.
- the face fixing portion is discretely provided vertically around the eyes avoiding the frame of the user's glasses, and the face fixing portion is provided on the left and right outer sides of the frame of the user.
- a light blocking member for blocking the light. Therefore, even when wearing glasses, it is possible to enjoy a highly realistic image with a predetermined eye relief without interference between the face fixing portion and the glasses frame. In general, it is desired that the field of view be widened even during the movement of the eyes with the eyes opened. Therefore, for those who do not wear glasses, it is preferable to set the eye relief to about 10 mm, which is shorter than the normal 15 mm.
- the face fixing part is 1 Omm, the eye relief of the people wearing glasses will be more than 25 mm in total.
- the face fixing portion is discretely arranged vertically around both eyes while avoiding the frame of the user's glasses.
- a ventilation system or the like may be provided.
- a frame recognizing unit for recognizing the presence or absence of a user's eyeglass frame is provided, and the thickness of the face fixing unit can be changed according to the recognition result. Therefore, if you wear glasses, you can achieve a 10mm eye relief for the user, and wear glasses! /, Ru Check the glasses frame for the user, put a stopper on, and fix with a 20mm eye relief. You. Therefore, even if the width of the spectacle lens is 2-3 mm, there is a gap of 2-3 mm between the spectacle lens and the eyepiece, so that the lenses do not come into contact with each other and an image with an eye relief of 20 mm The effect of being able to appreciate is produced. In addition, with such a configuration, it is possible to provide an optimal environment for a user who wears glasses, and for a user who uses power.
- the eyepiece optical system is constituted by at least three lenses. Therefore, while maintaining a high angle of view at 10 mm, each aberration can be suppressed, and even if the eye relief is set to several types, the distortion change rate is small and the distortion can be suppressed to 15% or less.
- the lens having the farthest eye power is constituted by a cemented lens. Therefore, the angle of view is high and chromatic aberration can be corrected.
- the lens having the closest eye power is constituted by a lens having at least one surface having a conic constant K ⁇ 0. Accordingly, a high angle of view can be obtained, the aberration can be improved, and the distortion can be suppressed even when several types of eye reliefs are set. Further, the image quality can be suppressed by changing the eye relief.
- the image display unit includes the relay optical system and the diffusion plate between the photoelectric element and the eyepiece optical system, and transmits the transmission image of the diffusion plate to the eyepiece optical system. Is projected onto the user's eyeball via. Therefore, the configuration is such that the projected image is once projected on the diffusion plate using the magnifying relay optical system, and the image is observed with the eyepiece optical system. This makes it possible to provide a user with a high-quality image. In particular, even with a liquid crystal panel that looks dark when viewed from a predetermined angle where the directivity is strong, the use of a diffusion plate also has the advantage that a wide angular force can be observed due to the diffusion effect.
- the image display system 50 includes a voice input unit 51, an image display unit 52, a sound output unit 53, a support unit 54, and a chair unit 55.
- the voice input unit 51 can perform onZoff of voice input by moving in the direction of arrow F.
- the image display unit 52 transmits light emitted from a two-dimensional light emitting type photoelectric element (not shown) orthogonal to the light emission direction to the user via eyepiece optical systems corresponding to both eyes of the user. Project onto the eyeball.
- the sound output unit 53 outputs sound to the user.
- the support portion 54 supports the image display portion 52 at a portion that does not contact the user.
- FIG. 24C is a cross-sectional view of the support portion 54 of the present embodiment.
- the support portion 54 includes a horizontal drive portion 76 including a joint 77, a string 56 on which the image display portion 52 is suspended, a support 57, and a weight 58 provided in the support 57.
- the weight 58 inside the strut 57 is drawn The weight is almost the same as that of the image display unit 52.
- the image display unit 52 can be freely moved in the horizontal plane by the in-horizontal drive unit 76, and the image display unit 52 and the weight 58 are connected by the string 56 along the pulleys 59, 60, and 61. , Vertical movement is realized.
- the weight 58 is connected to the image display unit 52 by the string 56, and cancels the moment of the image display unit 52 with respect to the support unit 54.
- the pulleys 59, 60 and 61 reduce the friction generated in the string 56.
- the portion where the pulleys 59, 60 and 61 are provided may be processed with Teflon (registered trademark) to reduce friction.
- the string 56 is a string-like soft member that is strong.
- a string-like soft member that is strong.
- the support portion 54 includes a cover from the in-horizontal-plane driving portion 76 until the image display portion 52 is suspended by the string 56.
- the cover 62 fixed to the drive unit 76 in the horizontal plane and the cover 64 fixed to the universal joint 63 of the image display unit 2 are connected by a nest 65 as shown in FIG. The structure is such that the image display section 52 does not fall even if the string 56 is broken.
- the cord is divided slightly above the nested part 65, and when the tension on the divided cord is lost, the claws open to the left and right, and a brake member with the shape that the claws abut the cover 62 is used. Put it in. Then, the brake member comes into contact with the upper end portion of the cover 62 and the like, causing friction, so that the falling speed can be reduced.
- the exposed portion of the string 56 other than the hanging portion is the portion of the in-horizontal plane driving unit 76.
- FIG. 25 is a diagram showing a mechanism around a rotation axis of 0X0y0z other than the above-described XYZ movement.
- the 6 degrees of freedom described here means that the robot can completely follow the movement of the face with almost no load by introducing a method of weight balance and maintaining the center of gravity that can move more than just moving. This indicates that images can be viewed in any direction within the stroke range allowed in a sitting state or a sleeping state.
- the chair portion 55 and the support portion 54 are integrated as described above, since a heavy object capable of performing various operations is installed on the user's head, it is not safe. Particular attention needs to be paid. Since the support portion 54 is provided on the back portion 55a of the chair portion 55, there is no problem when the user performs a normal operation. However, when the user separates the image display unit 52 from the face as shown in FIG. 26, the in-horizontal drive unit 76 of the support unit 54 automatically contracts, and at least the operation when the user raises his / her waist The image display unit 52 is retracted from the range of the arc G drawn by the head with the waist, which is the range, as the rotation center.
- the chair portion 55 has a backrest portion 55a that can be inclined (reclined). Even when the back portion 55a of the chair portion 55 is reclined in this way, as shown in FIG. 28, when the user moves the image display portion 52 away from the face, the horizontal drive portion 76 of the support portion 54 is automatically turned on.
- the image display unit 52 is retracted at least from the range of the arc H drawn by the head around the waist, which is the motion range when the user raises his / her waist, as the center of rotation. In such a normal operation in which there is no intention to bring a body into contact with a heavy object, a safety design is applied so that the user is not injured by the heavy object at all.
- a parallel link mechanism (69, 70, 71) that supports the support section 54 with a parallel link structure is rotatable by the joint section 72 on the chair main body 68 fixed to the floor installation base 67. Fixed.
- the support 54 which is drivable by the joint 72 that moves up and down and back and forth in response to the reclining of the backrest 55 a of the chair body 68, is restrained by the parallel link mechanism (69, 70, 71).
- the support unit 54 is driven up and down and back and forth while being kept parallel to the parallel link fixing unit 65.
- the leg reclining mechanism (73, 74) installed on the chair body 68 also operates. These operations are controlled by an armrest 75 fixed to the chair body 68.
- the support portion 54 in both the normal state and the reclining state, the support portion 54 is kept parallel to the parallel link fixing portion 78, so that a space larger than the space required by the reclining chair is not required. Therefore, space can be saved. Further, the support portion 54 has the weight 58 described in FIG. 24 in the column 57. By keeping this vertical, the balance between the image display portion 52 and the weight 58 is maintained. Further, in this method, the position of the column 57 is also moved by the reclining, and the stroke of the horizontal moving mechanism mounted on the support portion 54 can be made smaller than that of the floor-standing type device. Thus, compact dangling can be achieved.
- the display unit that displays an image the chair portion that allows the user to sit down and the backrest portion can be inclined, and the display portion that is joined to the chair portion, A support portion that supports the portion not in contact with the user, and a face contact portion that is supported by the display portion and contacts the user's face, and the support portion displays according to the inclination of the back portion of the chair portion.
- the part can be moved so as to follow the head of the user. Therefore, by connecting the support unit and the image display unit to the chair on which the user sits, it is possible to avoid the risk that the image display unit will move and the image display system itself will easily fall down due to the change in the position of the center of gravity. it can.
- the face contacting portion is provided in contact with the user's face side, sandwiches the user's face, and the display portion responds to the movement of the user's head.
- the face contacting portion is provided in contact with the user's face side, sandwiches the user's face, and the display portion responds to the movement of the user's head.
- the support unit includes the balance unit that cancels the moment of the display unit with respect to the support unit. Therefore, the image display follows the movement of the face smoothly A configuration that can be used can be adopted.
- the support unit includes the string-shaped soft member that connects the display unit and the balance unit, and the friction alleviation mechanism that alleviates the friction generated in the soft member. Therefore, the balance section is not exposed to the outside, preventing damage (contact, etc.) to the user, and furthermore, because only the image display section has no rotational moment and no force is generated, the image display section is smooth for the user. Can be compensated for.
- the support portion includes a stainless steel fiber as a string-like soft member. Since stainless steel fibers are flexible and have excellent durability and tensile strength, the use of twisted yarns using these fibers can avoid the risk that the flexible member is easily broken.
- the support section includes a para-aramid fiber as a string-like flexible member.
- the nora type aramide fiber is supple and has excellent durability and tensile strength, similarly to the above-mentioned stainless steel fiber. Therefore, by using a twisted yarn using this fiber, there is a risk that the flexible member is easily broken. Can be avoided.
- the support unit includes the fall prevention mechanism for preventing the display unit from falling when the flexible member is disconnected. Therefore, it plays a major role in avoiding risk in the event that the flexible member breaks.
- the support portion includes the cover that covers the surface. Therefore, it is possible to prevent a finger or the like from being caught in a driving portion when the image display unit is driven.
- the soft member is not visible from the outside and not touching it, the soft member is exposed to the outside, so that it is deteriorated or damaged, the wire is disconnected, and the image display part falls. Risk to be avoided.
- the support portion is arranged adjacent to the backrest portion of the chair portion, and the chair portion tilts the support portion with respect to the ground in the vertical direction when the backrest portion is inclined. It has a parallel link member to keep it. Therefore, a large stroke for the image display unit to follow the head, which is required for the floor-standing type, is not required. This is because the backrest is designed to take over the stroke. Therefore, space can be saved. Further, in this configuration, the columns are always orthogonal to the horizontal plane. But This has the effect of preventing the support portion from contacting the weight in the support portion.
- the support unit retracts the display unit from within the arc drawn by the head around the user's waist. . Therefore, the safety design is applied so that the user does not come into contact with the image display unit or the support unit when the user rises the chair power. I have.
- the image display device 100 of the third embodiment has substantially the same configuration as that of FIG. 23 of the second embodiment. Therefore, illustration and description of the configuration are omitted, and the following description is made using the same reference numerals as in FIG.
- FIG. 29 is a cross-sectional view of the support portion 54 of the image display device 100.
- the support section 54 has a wiring 101 along a string-shaped flexible member 102 in the support section 54.
- the wiring 101 is guided from the image display unit 2 to the weight 58 via wiring pulleys 103, 104, and 107.
- the wiring 101 is fixed at a wiring fixing portion 105 provided on the weight 58.
- the wiring 101 is slackened so as to have a sufficient margin for the vertical driving of the weight 58 (see region I in FIG. 29), and is thereafter connected to the outside (for example, the control device 106).
- the wiring 101 itself is designed so that the bend R is as large as possible to avoid disconnection and the like, and is designed so as not to directly receive the weight 58 and the weight of the image display section 52. It is installed with a predetermined margin so that it does not become a load when moving. Therefore, since almost no tensile force is generated in the wiring 101 itself, consideration is made that the load resistance is small and the load is not applied to the wiring 101 itself.
- Such a wiring 101 is used for power transmission of the LCD and the LCD illumination system of the image display unit 52, image display, information transmission for sound, and the like.
- the LCD and the LCD illumination system of the image display unit 52 image display, information transmission for sound, and the like.
- wired supply is the most efficient.
- the display unit that displays an image and the balance unit that supports the display unit at a portion that does not contact the user and cancels the moment of the display unit with respect to the support unit.
- a support portion provided with the display portion, a face contact portion supported by the display portion and in contact with the user's face, and a display portion provided along the support portion and a part of which is fixed to a part of the balance portion.
- a wiring for connecting to the outside Therefore, since the wiring 101 itself hardly generates a tensile force, the load resistance is small and a stable output can be obtained without applying a load to the wiring 101 itself.
- the face contact portion is provided in contact with the side surface of the user's face, sandwiches the user's face, and the display portion responds to the movement of the user's head. It is preferable that a part of the face contact part can be used as a fulcrum to be movable. This makes it possible for the image display unit to almost completely follow the movement of the user's face.
- the invention described in the third embodiment may be applied to the image display device 1 of the first embodiment, the image display system of the second embodiment, and each of the embodiments described later.
- ⁇ 4th Embodiment >>
- the image display device 170 of the fourth embodiment has a configuration substantially the same as that of FIGS. 23 and 24 of the second embodiment. Therefore, illustration and description of the configuration are omitted, and the following description is made using the same reference numerals as those in FIGS.
- FIG. 30 is a diagram in which the supporting portion 54 of the image display device 170 is also viewed with an upward force.
- the in-horizontal-plane driving section 76 has an angle adjusting mechanism at the intersection CR like a magic hand, and the members constituting the in-horizontal-plane driving section 76 are rotatable with respect to each other. This is a mechanism that is connected and can expand and contract.
- the horizontal plane drive unit 76 has a counter balance unit 171 at the end opposite to the image display unit 52. Then, the ratio of the distance from the support 57 to the counterbalance portion 171 and the distance from the support 57 to the image display 52 is p: q, and the ratio of the moment when the weight is the same is p: q. is there.
- a detection unit that detects an installation state such as a degree of horizontality or vibration is provided, and a control mechanism that suppresses rotational movement is provided in the angle adjustment mechanism. . Then, when the installation state is extremely bad (air pockets during flight, quake, etc.), the expansion and contraction of the in-horizontal-plane drive section 76 is suppressed by this braking mechanism.
- the angle adjustment mechanism is equipped with a well-known braking mechanism that is controlled by a signal from the detection unit. The With such control, danger, an emergency accident, and the like can be avoided.
- FIG. 31 shows only the configuration of the moving mechanism in the z direction with respect to the support portion 54 of the image display device 170.
- a pulley PU is used to balance the weight.
- a pulley PU of the type shown in FIG. 31 may be used.
- the strut 57 can be manually moved up and down, so that the height can be set roughly when sleeping, sitting, or standing.
- the image display section 52 moves up and down by about 2 to 30 cm.
- the display unit that displays an image and the support unit that supports the display unit at a part that does not contact the user and that can expand and contract are provided. Therefore, it is possible to cause the image display unit to follow the movement of the user's face while reducing the weight of the image display unit felt by the user.
- the face contact portion is provided in contact with the user's face side surface, sandwiches the user's face, and the display portion responds to the movement of the user's head. It is preferable to be able to move around a part of the face contact portion as a fulcrum. This makes it possible for the image display unit to almost completely follow the movement of the user's face.
- the installation state is detected by detecting the installation state, and the support section control section that suppresses the expansion and contraction change of the support section when it is detected that the installation state has significantly deteriorated. . Therefore, it is possible to avoid danger, an emergency accident, and the like.
- the invention described in the third embodiment may be applied to the image display device 1 of the first embodiment, the image display system of the second embodiment, and each of the embodiments described below.
- the image display system 180 according to the fifth embodiment has substantially the same configuration as the second embodiment and the third embodiment. Therefore, in the following, the same as in the second and third embodiments will be described. The description will be made using reference numerals.
- FIG. 32 is an external view of the image display system 180 viewed from the horizontal direction.
- the image display system 180 has a fixture 182 that can be extended and contracted in the direction of arrow b on the chair portion 55, and a fixture 183 that can be extended and contracted in the direction of arrow c on the backrest portion 55a.
- the parallel link mechanism (see FIGS. 27 and 69-71) and the chair portion are fixed via the fixing members 182 and 183.
- a weight 181 is provided below the parallel link fixing portion 78. Further, a counterweight portion 184 for balancing with the image display section 52 is provided on the upper side of the support 57 and on the opposite side of the image display section 52! This can be installed because the XY stroke on the chair is small! /, So even if the counterweight section 184 is installed, it does not hinder the space! /. Also, if the balance is not maintained by the counterweight portion 184 on the vehicle, when the vehicle is tilted, the in-horizontal driving portion 76 expands and contracts, which is dangerous. In addition, a weight 185 is installed at the lower end of the column 57.
- FIG. 33 is a diagram showing a situation where the floor is inclined, such as when an airplane takes off.
- the parallel link fixing portion 78 tries to maintain vertical to the horizontal plane. Accordingly, the fixture 182 is separated from the chair by the arrow a in accordance with the inclination of the floor, and the support 57 is also kept vertical by the parallel link in accordance with the arrow. As a result, the in-horizontal-plane driving unit 76 maintains the horizontal state, and the danger due to the inclination of the in-horizontal-plane driving unit 76 is eliminated.
- the support shaft is tilted due to a steep tilt that occurs in an airplane or the like, if it is controlled so as to be fixed by a stopper that invalidates the drive of the in-horizontal drive unit 76, a sudden change such as an air pocket may occur. It is possible to cope with various situations.
- the weight 181 185 and the counterweight section 184 correspond to the “vertical balance section” in the claims.
- the column 57 may be kept vertical by inserting the angle adjusting mechanism 186 into the base of the column 57.
- an in-horizontal driving unit 76 may be kept horizontal by inserting an angle adjusting mechanism 187 between the column 57 and the in-horizontal driving unit 76.
- a horizontal detector and a driving means for driving the angle adjusting mechanism may be provided in the angle adjusting mechanisms 186 and 187, and the angle may be automatically adjusted according to the inclination.
- a display unit that displays an image
- a support unit that supports the display unit at a part that does not contact the user
- a display unit that is supported by the display unit
- a face contact portion that contacts the face of the user
- an adjustment portion that is provided on a part of the support portion and adjusts at least one of an installation angle of the support portion with respect to the floor portion and an installation angle of the display portion with respect to the floor portion. Therefore, it can be used even when the ground may be inclined, such as a chair in an airplane.
- the vertical balance section having the weight is provided. Therefore, it can also be used in this case and in cases where the ground may be inclined, such as a chair in an airplane.
- the invention described in the fifth embodiment is applied to the image display device 1 of the first embodiment, the image display system 50 of the second embodiment, the image display device 100 of the third embodiment, and the image display system of the fourth embodiment. It may be applied to 170 and each embodiment described later.
- the image display device 190 of the sixth embodiment has substantially the same configuration as the image display device 1 of the first embodiment. Therefore, illustration and description of the configuration are omitted, and the description will be made below using the same reference numerals as in the first embodiment.
- An image display device for a home theater can enjoy a higher sense of realism by viewing a high-definition image with high resolution.
- the image is projected at a predetermined size with high definition, and in the peripheral area, the image is projected with low definition.
- the central portion which is the portion overlapping with the image in the central region, is set to be a completely dark image (original display is possible), so that when combined, the image is controlled so that there is no strange feeling.
- the condition of the screen size differs depending on the distance between a person and the screen in a normal television or the like.
- the present invention is a system for viewing a virtual image by an eyepiece, and represents a relationship between a viewing angle and a dot size therein (meaning the number of pixels of a liquid crystal device).
- a viewing angle and a dot size therein meaning the number of pixels of a liquid crystal device.
- FIG. 36 shows a case where a display device having a screen size of 52 inches (diagonal length) is arranged, and the number of pixels per unit area and the viewing angle are changed.
- the visual acuity that can be seen is shown in the table.
- the number of pixels per unit area indicates the number of pixels in the horizontal direction of a 16: 9 display device.
- the viewing angle is 36.546 degrees diagonally, and the viewing angle is about 32.111 degrees.
- this data uses a transmissive liquid crystal device, and it is known that the gap between the elements with respect to the number of pixels is narrower in a reflective liquid crystal device, the reflective liquid crystal device has a larger viewing angle. Even if it is large, the gap between the elements is difficult to see. In this way, it can be seen that the size of the central region may be determined by the liquid crystal device to be used, and the size of the periphery may be determined as the peripheral region.
- the human eye can recognize the field of view as an image of the surrounding area at 180 °, it is known that a considerable immersion can be obtained if the angle is 90 ° or more. To cover the range from 90 ° to 120 °.
- FIG. 37 shows a control method using three RGB LCDs as an example.
- the control system schematic diagram when a still image is displayed as the image of the peripheral area will be explained (of course, three RGB LCDs can be used for the periphery, so in that case, 1920 ⁇ 1080 liquid crystal Think of it as the same set for images in the central area of the device).
- liquid crystal device RGB191 In the 1920 ⁇ 1080 liquid crystal device RGB191, respective images are synthesized by an optical system and output as a color image.
- the liquid crystal device RGB191 is controlled by a liquid crystal drive driver 192 that controls each liquid crystal on / off.
- a color image When a color image is output, a video signal conversion that converts a high-definition video signal to liquid crystal on / off control is performed.
- this high-definition image is only a control for faithfully reproducing the image, and as a preceding stage, the video size is electrically resized, shifted in a predetermined direction, combined with an image, and a predetermined condition.
- a video signal coordinate conversion Z video signal synthesizer 194 that generates a peripheral image according to the image is installed.
- the CPU 195 which controls the video signal coordinate transformation Z-video signal synthesizer 194, also controls the headphone output unit 196, the switching control for switching the output of the headphone to the information of the external audio input unit in an emergency,
- the output value from the 0x, 0y, 0z rotary encoder 197 (for example, provided in the universal joint 63 shown in FIG. 25 of the second embodiment) installed on the face-mounted portion is read, and the relative value between the ground and the face is read.
- This control system controls the driving of the fixed mechanism for driving the high-vision image and the reclining chair from the outside, storing and securing the image display unit 52, and the force installed in the image display unit 52.
- the control system, control panel, etc. are all installed on the chair side.
- the communication between the image display unit 52 and the chair unit 55 is mainly performed by wireless or optical fiber, and the number of wirings is reduced as much as possible.
- ⁇ It passes through the lance weight storage cylinder and is connected by wire.
- FIG. 38 (A) shows an output image of an image in the central region
- FIG. 38 (B) shows an output image of an image in the peripheral region.
- the display optical system that displays the image in the central region is originally reduced to the size of the image in the central region by a force-optical zoom mechanism that can display the same size as the image in the peripheral region.
- the pixel pitch itself of the display is also reduced, and the pixel cannot be recognized by eyes. This is because the possibility of moving the eyeball relatively within a viewing angle of 60 ° is relatively high, and the pixels are not imaged in the field.
- FIG. 38 (A) is an image after performing the above-described processing.
- a basic image processing method is to combine these with a combining optical system and project a combined image as shown in FIG. 38 (C) to the left and right eyes.
- both images are adjusted optically and electrically so that they match, and the images are displayed on a single display as if they were being viewed.
- a high-definition image with fine pixels is projected on the center, and a low-definition image on which pixels can be confirmed is projected on the periphery.
- the image data does not have data corresponding to the black portion on the left side of FIG. 39 (B), and if this is output, the sense of reality is impaired. Therefore, according to the image processing method of the present invention, information on a pixel adjacent to a black portion is stored, and the same information is stretched and replaced with a left black portion.
- the human eye looks at the center, the resolving power and attention to peripheral images are extremely reduced, and there is almost no sense of incongruity if there are continuous images and colors.
- Fig. 40 (B) Since the original image of the central area is an optically reduced image, the normal output information The image shown in Fig. 40 (B) has no peripheral image. If the central image has a viewing angle of 60 °, there is no power to enjoy the image itself, so there is no peripheral image, giving the impression of a movie theater. However, in the present invention, as described above, the information of the pixel adjacent to the black peripheral portion is stored, and the same information is stretched and replaced with the black portion on the left, and is displayed on the peripheral image display section. Fig. 40 (C) shows that the resolution and attention to the surrounding image are extremely reduced as described above. If there are continuous images and colors, there is almost no discomfort!
- FIG. 40 (D) shows a change in the displayed image when the user turns his head to the left and looks at the soccer player at the center of the image.
- the rotation of the user's neck is determined by the output values of the 0x, 0y, 0z rotary encoder 197. 0x, 0y, 0z
- the image is shifted to the right by image processing by the rotation angle detected by the rotary encoder 197, and the information of the pixel adjacent to the missing part is stored and the same as the information Stretch and use.
- the display mode is switched to the image display mode in which the image is displayed only in the central area as shown in FIG. 41 (A), and the character information L and the operation panel P are displayed in the peripheral area as shown in FIG. 41 (B). indicate.
- the text information L information provision of other television programs, text broadcasting information, and the like can be considered.
- the operation panel it is preferable to display a pointing device or the like on the operation panel so that the operation panel can be operated by an operation member such as a mouse.
- the operation may be performed by combining an operation member such as a mouse and the user's motion recognition by the 0x, 0y, 0z rotary encoder 197 described above.
- the center region is selected by the operation member and the head is shaken to perform the above-described mode of shifting the image (FIG. 41 (C)), or the adjacent pixel information is extracted while shifting the image. It is also possible to switch to the stretching mode (Fig. 41 (D)).
- FIG. 42 (C) shows a state in which the character information and the operation panel screen below are shifted to the center of the screen by turning the face downward.
- how much the face has been moved down can be calculated from the rotation angle in the 0x direction measured by the 0x, 0y, 0z rotary encoder 197, and the center without moving the eyeball While viewing the image, the user can check the text information and the operation panel screen and operate it. Since the peripheral image is originally configured such that the center image can also be output as the center image (usually, the center screen displays black) as in the present invention, it is devised so that the overlapping output can be easily performed.
- a predetermined image is output as a peripheral image in a defocused form. This is based on the human memory that the defocused object is near and the clear image is far away even if the surrounding image is not recognized. Depth can be felt.
- peripheral image is projected in a defocused state, the user's attention can be easily directed to the central image, so that the immersive feeling given to the user can be further improved.
- an image having a predetermined pattern pi that becomes smaller as approaching the central area may be displayed on the image of the peripheral area.
- the lever mark is shown only in the lower area of the peripheral area!
- the image of the central region is projected so as to be a clear image
- the image of the peripheral region is projected so as to be in a defocused state. It is possible to give.
- the image of the peripheral region along the left and right ends of the image of the central region, and displays an image having a columnar pattern P 3 and p4. By displaying such a pattern, it is possible to draw the user's attention to the central area, so that the immersion feeling given to the user can be further improved.
- a display unit that displays an image
- a support unit that supports the display unit at a part that does not touch the user
- a user that is supported by the display unit
- the display unit is capable of changing the contents of a central region and a peripheral region in a projection range when displaying an image, and displays a high-resolution image in the central region.
- the first display which projects the image in low definition in the peripheral area, and the entire image is projected in high definition in the central area, and an image different from the above-mentioned image is reduced in the peripheral area. Either of the second display to be projected is performed. Therefore, the display can be performed according to the user's purpose and preference.
- the portion corresponding to the peripheral region when performing the second display, the portion corresponding to the peripheral region has different information from the image shown in the portion corresponding to the central region. Display the image. Therefore, an immersive feeling can be given at the time of observation according to the user's request. Further, according to the sixth embodiment, when performing the second display, an image having a predetermined pattern that becomes smaller as approaching the central region is displayed in a portion corresponding to the peripheral region. . Therefore, it is possible to provide a sense of perspective to the user and provide an image with a sense of reality.
- a pattern similar to and smaller than the predetermined pattern of the central region is formed at least in the outer periphery of the portion corresponding to the central region. Displays the image that was partially included. Therefore, a more natural perspective can be given to the user.
- the image is projected in a defocused state in the peripheral area. Therefore, an immersive feeling that gives the user easy attention to the central image Can be further improved.
- the face contacting section includes a motion detecting section that detects the movement of the user's face, and responds to the movement of the user's face detected by the motion detecting section.
- the display unit shifts a display area of an image to be displayed over a portion corresponding to the central area. Therefore, the user's discomfort during use can be reduced.
- the sixth embodiment when performing the second display, information relating to the operation by the user is displayed in a portion corresponding to the peripheral area. Therefore, useful information for the user can be provided by effectively utilizing the display range.
- the face contacting section includes a motion detecting section that detects the movement of the user's face, and responds to the movement of the user's face detected by the motion detecting section.
- the display unit shifts a display area of an image to be displayed over a portion corresponding to the central area, or shifts a display position at which information relating to an operation by a user is displayed. Therefore, it is possible to reduce the uncomfortable feeling at the time of use of the user and to improve the operability.
- the invention described in the sixth embodiment can be applied to the image display device 1 of the first embodiment, the image display system 50 of the second embodiment, the image display device 100 of the third embodiment, and the image display device 100 of the third embodiment.
- the present invention may be applied to the image display system 170, the image display system 180 of the fifth embodiment, and each embodiment described later.
- the image display device 120 of the seventh embodiment has substantially the same configuration as the image display device 1 of the first embodiment described with reference to FIG. In the present embodiment, as shown in FIG. 43, at least two image display devices 120 are installed and used.
- the left image display device 120 has a weight supported by a support portion 121 that supports the image display portion 122 from the floor, and the image display portion 122 includes a sound. And a sound output unit 124 that outputs sound information.
- the image processing device 125 is a DVD, a BS tuner, a computer main body, or the like, and the information is transmitted through a cable 126 to an infrared light emitting unit 127 installed on a support unit 121 so that sound data and image data as wireless information are imaged.
- the image and the sound processed by the image processing device 125 are output to an infrared light receiving unit (not shown) installed on the display unit 122 and provided to the user. Can be paid.
- the image display device 120 on the right side is also supplied with sound and image information from the image processing device 125 on the right side, so that it is possible to enjoy completely independent images and sounds.
- the system according to the present invention is for individuals, so it is rare to install it in a close place in the same room as in Fig. 1, but there are many users who feel a sense of obstruction when viewing alone. It is quite possible that two cameras will be installed near each other as shown in Fig. 3 and enjoy different images while enjoying conversation and snacking. Therefore, in the present embodiment, the image processing device 5 of the right and left image display devices 120 is connected by the audio transmission cable 128 (wireless is also possible), and the voice of one user from the audio input unit 123 is The other user's sound output unit 124 has a configuration in which the sound is overlapped with the conventional sound information.
- a switch for shifting the wavelength by a predetermined frequency is attached in order to prevent information from both infrared light emitting sections 127 from being mixed.
- This switch can prevent information output from the infrared light emitting units 127 on both sides from being mixed by using different frequency bands. For example, in the present invention, when borrowing one DVD and playing back the data on one of the DVD players, if the frequencies at the time of infrared emission are the same, for example, the infrared emitting section on the left Both the left and right users receive the image's acoustic information from the camera, and it is possible to enjoy the image at the same time.
- the display unit, the sound output unit, and the communication unit that externally inputs image information to the display unit and inputs sound information to the sound output unit
- An image display device comprising: a support unit that supports the display unit at a portion that does not contact the user; and a face contact unit that is supported by the display unit and contacts the user's face. It has a mechanism to switch infrared light with slightly different wavelengths when at least two display devices are installed and used. Accordingly, when a plurality of image display devices are installed near a plurality of users to view images, the images and sounds to be viewed do not mix with each other.
- the face contact portion is provided in contact with the user's face side, and sandwiches the user's face, and the display portion responds to the movement of the user's head. It is preferable to be movable about a part of the face contact portion as a fulcrum. This makes it possible for the image display unit to almost completely follow the movement of the user's face.
- the image display device 130 of the eighth embodiment has substantially the same configuration as the image display system 50 of the second embodiment described with reference to FIG. Therefore, illustration and description of the configuration are omitted, and the following description is made using the same reference numerals as those in FIG.
- At least two image display devices 130 are installed and used in the vicinity.
- the present embodiment assumes a case where a plurality of people in a movie theater or the like view images.
- Figure 44 shows a situation where an information sharer is selected and information is exchanged.
- Each of the image display devices 130 installed side by side is provided with the image display unit 52 that is installed on the backrest of the support unit 54 similar to that of FIG.
- the floor-standing type as described with reference to FIG. 1 of the first embodiment can easily move the support portion itself, but poses a problem because it can be placed anywhere in terms of space and safety.
- the support part 54 installed on the backrest part is inherently inaccessible to humans! / Since it is installed in a part, it is difficult to move the device itself! / It is excellent for use in public facilities, movie theaters, home relaxation chairs, etc.
- a conversation onZoff mechanism 131 is provided to allow conversation between adjacent chairs.If this is connected between adjacent chairs, the voice of the voice input unit 51 of one user will be The sound output unit 53 of the other user is configured to be overlapped with sound information of a movie or the like. OnZoff by raising and lowering the voice input unit 51 is also possible as described above, but conversation cannot be performed unless the conversation onZoff mechanism 131 is connected. Therefore, it is possible to have a conversation and enjoy the image while talking only with the person.
- the on-off of the voice input unit 53 can be performed by raising the position force of the voice input unit 51 to the upper part. This makes it possible to talk only when you want to talk, and to have the other party enjoy realistic images and sounds when you do not need to talk.
- the display unit, the sound output unit that outputs sound to both ears of the user, and the sound input unit that inputs the sound of the user An image display device comprising: a support portion that supports the display portion at a portion that does not contact the user; and a face contact portion that is supported by the display portion and contacts the user's face.
- a switching unit for switching whether or not the switching is performed; Therefore, it is effective when the present invention is used in a movie theater or the like. Normally, movie theaters require large facilities with large screens that can be seen from all seats, which is expensive.
- the invention of the present embodiment is used in the form of a movie theater, even in a general room where the surroundings are noisy or when a person with a high sitting level comes in front of the seat, etc.
- the condition for enjoying conversation with any person is prepared by freely switching between the target person to speak and the target person to listen to the talk, and a microphone (voice input device) is used only when the user wants to talk. If you do not need to speak, turn on the microphone and turn off the sound output, so that you do not tell yourself or coughing to the other party. Te ru.
- the face contact portion is provided in contact with the side surface of the user's face, sandwiches the user's face, and the display portion responds to the movement of the user's head.
- the image display unit it is preferable to be able to move around a part of the face contact portion as a fulcrum. This makes it possible for the image display unit to almost completely follow the movement of the user's face.
- the image display device 150 of the ninth embodiment has substantially the same configuration as the image display system 50 of the second embodiment described with reference to FIG. Therefore, illustration and description of the configuration are omitted, and the following description is made using the same reference numerals as those in FIG.
- the image display device 150 of the present embodiment is an example in which two image display devices 150 are arranged in front and rear chairs.
- the image display device 150 includes a support unit 54, and supports the image display unit 52 in which the sound output unit 53 and the audio input unit 51 are installed by the support unit 54. Further, an information input on / off switch 151 is provided on the armrest portion.
- the voice input unit 51 can perform onZoff of voice input by up / down operation.
- the user on the left side in FIG. 45 raises the voice input unit 51 upward. That is, the voice input is off. Therefore, the user on the left is watching the image without having to talk to an outside person.
- the information input onZoff switch 151 is used for externally asking the user. For example, when this is an airplane seat, when the cabin attendant presses the information input onZoff switch 151, the sound is already output to the user's sound output unit 53, and the cabin attendant's voice is played in duplicate with the information. It is used when providing information only to people in a specific seat when arranging meals or drinking water service.
- the user on the right side in FIG. 45 has the voice input unit 3 lowered. That is, the voice input is on.
- the voice input is on.
- a specific partner for example, a flight attendant
- the display unit the sound output unit that outputs sound to both ears of the user, and the display unit in a part that does not touch the user.
- the apparatus includes a supporting unit for supporting, a face contacting unit supported by the display unit and in contact with the user's face, and a switching unit for switching whether or not to output acoustic information of an external force by the acoustic output unit. Therefore, it is effective when airline flight attendants provide information to individuals as necessary. It is fruitful. That is, even in a situation where the surrounding information enters the eyes and ears and it is difficult to immerse in image appreciation, according to the present embodiment, since no external sound or image enters, it is possible to immerse in image appreciation.
- the on-off switch which determines whether or not the external force is mixed into the user's sound, is provided, so that the information can be provided to a minimum without hindering the user's realism.
- the face contact portion is provided in contact with the side surface of the user and sandwiches the user's face, and the display unit supports a part of the face contact portion as a fulcrum according to the movement of the user's head. As it is movable. Therefore, it is possible to make the image display unit almost completely follow the movement of the user's face.
- the interpupillary adjusting mechanism By completely adjusting the distance between the lenses and the width between both eyes by the interpupillary adjusting mechanism, it is possible to provide a good image without tiredness.
- the interpupillary distance adjustment is actually performed optically, it may take a long time to adjust the distance, or the adjustment mechanism may be complicated. Therefore, by providing an optical adjustment unit for roughly adjusting the distance between the eyes and an electric adjustment unit for accurately adjusting the distance between the eyes and the distance between the two screens, there is substantially no trouble such as tired eyes. It is good to provide a nice image.
- an information input means for recognizing a user and a control means for setting adjustment information stored in advance for each user according to the information may be provided. This is for those who select a specific button displayed on the image display. Or a method of recognizing by inputting a password. Then, according to the result, the conditions such as eye width adjustment, display screen, focus adjustment, etc. are all automatically set according to the user, so that wasteful time can be saved and images can be enjoyed immediately. It becomes.
- the speaker may be provided in the power chair portion in which the face sandwiching portion and the speaker are integrated. In that case, the ear can be released. Further, a vibration portion that vibrates in conjunction with at least one of the image and the acoustic information may be provided in the chair portion.
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Abstract
Description
Claims
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DE102019127631A1 (de) * | 2019-10-14 | 2021-04-15 | Bayerische Motoren Werke Aktiengesellschaft | Anzeigesystem für ein Fahrzeug |
US12108025B2 (en) | 2021-12-22 | 2024-10-01 | Meta Platforms Technologies, Llc | Eye-tracking optical verification tester |
JP2024005791A (ja) * | 2022-06-30 | 2024-01-17 | キヤノン株式会社 | カメラモニタシステムおよびその制御方法、プログラム |
WO2024127188A1 (ja) * | 2022-12-15 | 2024-06-20 | 株式会社半導体エネルギー研究所 | 電子機器 |
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Also Published As
Publication number | Publication date |
---|---|
US20070188407A1 (en) | 2007-08-16 |
JP4413065B2 (ja) | 2010-02-10 |
US20100039351A1 (en) | 2010-02-18 |
TW200605938A (en) | 2006-02-16 |
EP1715682A1 (en) | 2006-10-25 |
EP1715682A4 (en) | 2009-11-18 |
US8289230B2 (en) | 2012-10-16 |
TWI301073B (ja) | 2008-09-21 |
JP2005244919A (ja) | 2005-09-08 |
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