JP2006071849A - Scope type versatile electronic glasses - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a scope type versatile electronic glasses to be easily carried with one hand, and to ensure the easy, steady focusing of the convergent point of a Maxwellian view within the range of the pupil of an eye. <P>SOLUTION: The glasses includes: an electronic glasses main body 2 employing a Maxwellian view and emits high-directivity image light from an emitting section (the display screen of a display device); a video camera apparatus 3, as an image input apparatus, set on the front step 21 of the upper face of the electronic glasses main body 2; and an eyecup 4, as an eyecup means with which the periphery of an image light emitting part 22 (the display screen of the display device; eyepiece) is covered in the form of a cup. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a scope-type versatile electronic eyeglass provided with a display device for projecting image light directly onto a retina through a pupil using Maxwell's view.

  Maxwell's vision is the principle of a pinhole camera, which focuses highly directional image light within the pupil of the eye and directly focuses the image light on the retina without using the focus adjustment function of the lens. Because the projection is deep and the depth of focus is deep, the function of the crystalline lens and cornea is reduced, and even for low vision people who are difficult to see even when wearing glasses, the retina is focused and the image is It looks clear without blur. Japanese Patent Application Laid-Open No. 2004-133620 discloses an “image providing apparatus” that can provide a clear image to an eye disease person using such Maxwell vision.

  On the other hand, there is a drawback because of Maxwell's view. That is, the convergence point of Maxwell's view must be located in the pupil, and the image cannot be seen unless the convergence point of Maxwell's view matches the position of the pupil. The pupil has a diameter of about 4 mm, and the convergence point of Maxwell's view must fall within this range.

  As an example to solve this, Non-Patent Document 1 discloses a paper that reports the result of measuring the reading ability of a low vision person using a retinal projection type display using laser scanning.

In this non-patent document 1, for a mobile, a display is fixed to the head with a headband, and an image is projected onto the retina by matching this with the position of the pupil of the eye.
JP 2002-282299 A Journal of Visual Imperial and Blindness, March 2004 P148-P159; “A Comparable With a Head-mounted Laser Display and Conventional Low Vision”

  However, in the conventional non-patent document 1, there is a description that most of the users (patients) could not hold the display in a fixed position with the headband that holds the display. The difficulty of

  Thus, when observing an image with a headband display attached to the head, it takes time for the user to fix the convergence point of the image light so that it is guided to the pupil. This shows how difficult it is to fix the display stably with the headband in accordance with the changing face shape, hairstyle, etc., which is a living body unique to the user.

  The present invention solves the above-described conventional problems, and can be easily carried, and can be easily held in one hand and can easily and stably adjust the convergence point of Maxwell's vision within the range of the pupil of the eye. The purpose is to provide electronic glasses.

The scope-type versatile electronic glasses of the present invention are scope-type versatile electronic glasses using a display device for projecting an image on the retina through the pupil of the eye by Maxwell's view,
An image input device capable of photographing a subject and the image input device are provided, the subject is displayed on a display screen of the display device based on an image signal from the image input device, and the Maxwell view is viewed. The above-mentioned object is achieved by including an electronic eyeglass main body in which the image light having high directivity used is emitted from the display screen of the display device.

  Preferably, in the scope-type versatile electronic glasses of the present invention, the visual axis of the display screen coincides with the optical axis of the image input device.

  Further preferably, in the scope-type versatile electronic glasses of the present invention, the display screen and the pupil are provided so as to surround the display screen in a cup shape, and the cup-shaped outer peripheral edge is applied to the periphery of the eye. There is further provided an eye cup means that can fix the positional relationship between

  Further preferably, the electronic glasses main body in the scope-type versatile electronic glasses of the present invention is provided with a grip portion for holding the electronic glasses main body by hand.

  Further, preferably, the scope type multi-purpose electronic glasses of the present invention further includes a stand member that supports and can fix the electronic glasses main body, and the electronic glasses main body is provided with an attachment portion for attaching to the stand members. ing.

  Further preferably, the electronic glasses main body of the scope-type versatile electronic glasses of the present invention has an input interface that allows an image signal to be externally input and displayed on the display screen, and an image captured by the image input device. And / or an output interface that enables signal output to the outside.

  Furthermore, it is preferable that the display device in the scope-type multipurpose electronic glasses of the present invention includes a signal processing unit capable of processing an image signal from the image input device or the outside, and a predetermined signal processing by the signal processing unit. A display image forming unit that forms a display image based on the image signal that has been made, and display image light from the display image forming unit, and using the display screen, highly directional image light using Maxwellian viewing And an image light emitting portion for emitting light.

  With the above configuration, the operation of the present invention will be described below.

  The alignment of the exit light convergence point of the display screen (display) of the display device using Maxwell's vision and the pupil of the observer (user) is strict, and the observer can make delicate adjustments with his / her hand and back The point of being handheld as in the case of performing this alignment is important. However, in order to simplify the electronic eyeglass body held by hand, for example, the control circuit and power supply for controlling the display are different, and the image input device such as a camera is also handheld and both hands must be used. The user cannot read and read the newspaper, and the usage is limited.

  In the scope-type multipurpose electronic glasses of the present invention, an image input device such as a camera and the electronic glasses main body are integrated, and a subject is displayed on the display screen of the display device based on an image signal from the image input device. Displayed and image light with high directivity using Maxwell's view is emitted from the display screen.

  In this way, by holding the scope-type versatile electronic glasses with one hand and moving the hand or face, align the display's exit light convergence point with the observer's pupil, so that it is within the range of the pupil of the eye. It becomes possible to easily and stably match the exit light convergence point in Maxwellian view.

  In addition, since the image input device is integrated with the main body of the electronic glasses, it is possible to use the video signal while aligning the exit light convergence point of the display of the display device and the pupil of the observer with only one hand without using both hands. Realizing visual aids for low vision users that are versatile and portable, such as viewing images, reading newspapers via image input devices, reading books, and looking around the surrounding environment It becomes possible.

  As described above, according to the present invention, the scope-type versatile electronic glasses of the present invention are held with one hand, and the hand and the face are moved. Can be adjusted stably.

  In addition, since the image input device is integrated with the main body of electronic glasses, you can hold the display with one hand without using both hands, view images by video signals, view newspapers via the image input device, And reading around the surrounding environment, it is possible to realize a visual aid device for low-sighted people who is versatile and portable.

Embodiments 1 to 3 of the scope-type versatile electronic glasses (scope-type electronic glasses apparatus) of the present invention will be described below with reference to the drawings.
(Embodiment 1)
In the first embodiment, a case of a hand-held scope-type multipurpose electronic glasses will be described.

  FIG. 1 is a perspective view showing a configuration example of a scope-type multipurpose electronic eyeglass according to Embodiment 1 of the present invention, and (a) and (b) are perspective views showing examples of grip portions.

  In FIG. 1, the scope-type versatile electronic glasses 1 according to the first embodiment are electronic glasses in which image light with high directivity using Maxwell's vision is emitted from an emission unit 22 (display screen of display device; eyepiece). A cup shape around the main body 2, the video camera device 3 as an image input device installed in the front step portion 21 on the upper surface of the electronic glasses main body 2, and the image light emitting portion (display screen of display device; eyepiece) And an eye cup 4 as an eye cup means.

  The electronic glasses main body 2 includes a front step portion 21 on the upper surface of the casing (box) on which the video camera device 3 is detachably mounted, and an image light emitting portion provided at the center position on the front side of the upper portion of the box. 22 (not shown, display screen of the display device) and a grip portion 23 provided on the lower side of the box for holding the electronic glasses main body 2 by hand. The image light convergence point from the image light emitting unit 22 is adjusted to the position of the pupil while supporting the electronic glasses main body 2. The grip portion 23 has a volume that can be held by hand, and has a constricted portion 23a that is somewhat constricted so that the outer peripheral portion of the box body can be easily gripped. A display start button may be provided on the surface on the side of the constricted portion 23a. Further, the grip portion 23 may be circular or elliptical in cross-sectional shape (easily gripped as shown in the grip portion 23A in FIG. 1B), or rectangular (see FIG. 1A). If the front side is rectangular as shown in FIG. 4, the shooting direction may be easily understood when gripping.

  In the electronic glasses main body 2, a signal processing unit (not shown) in which image data of a subject photographed by the video camera device 3 is input and predetermined signal processing is performed, and a predetermined signal is generated by the signal processing unit. A display image forming unit (not shown) such as a liquid crystal display device (liquid crystal projection device) displayed by a light source based on the processed image data, and a maximum based on image light from the display image forming unit A screen light emitting unit (not shown; a display screen of a display device) that emits screen light in a well view and a power supply (battery) that can supply power to each unit are incorporated.

  The display image forming unit is not particularly shown here, but as an example, the lamp light source connected to the power source and the light source from the lamp light source are R (red), G (green), and B (blue) colors. A spectral optical system that divides the light into the light and a spectrum of each color (parallel rays) dispersed by the spectral optical system is irradiated as a backlight, and a power line and a video signal line are connected to display a liquid crystal for each color. R (red), G (green), and B (blue) transmissive liquid crystal display devices, and combined optics that synthesizes and emits image light of each color from each transmissive liquid crystal display device as a color display image System. Alternatively, R (red), G (green), and B (blue) filters are periodically provided on a lamp light source connected to a power supply line (power supply unit) and a single transmission type liquid crystal display panel irradiated with the lamp light source. It comprises a coated display board and has a system for emitting a color display image from this display board.

  Although the screen light emitting part by Maxwell's view is not particularly shown here, the image light emitted from the surface of the combined optical system of the display image forming part is made into a pinhole of the pinhole plate by a condensing lens. After condensing and returning image light with high directivity emitted from the pinhole to parallel rays with a lens, the parallel rays are narrowed down with an eyepiece and converged in the pupil of the user.

  The eye cup 4 is made of a resin material such as silicon rubber, a metal material, or the like, and is attached so as to surround the periphery of the image light emitting portion 22 on the front surface of the box, and has a high directivity image using Maxwell's view. The outer shape covers the periphery of the image light exit surface (display screen) of the eyepiece in a cup shape so that the optical axis of the eyepiece (display screen) from which light is emitted is positioned at the center of the pupil. The outer peripheral shape of the eye cup 4 is a shape that fits (matches) the biological shape around the human eye. Accordingly, the positional relationship between the eyepiece lens (display screen) and the pupil by placing the cup-shaped outer peripheral edge of the eyecup 4 around the eye, that is, the vertical and horizontal directions and depth of the eye with respect to the image light exit surface of the eyepiece lens. Directional positioning can be easily performed. If this eye cup 4 is used, it becomes easy to find the image emitted from the image light emission surface of the eyepiece first.

  The eye cup 4 has a cup shape that covers the user's eyes, but a plurality of circulation holes are provided around the eye cup 3 so as to withstand long-term use. The surface of the eyepiece is coated with a special anti-fogging film (anti-fogging filter). This prevents the lens surface from becoming clouded even when used for a long time. Further, the eye cup 4 can shield the light so that an image can be clearly seen even in a bright place.

  With the above-described configuration, the grip portion 23 is held by hand, the periphery of the eye is pressed against the eye cup 4, and the position of the display screen (eyepiece) of the screen light emitting portion 22 in Maxwell view with respect to the pupil of the eye By simply matching, the convergence point of the image light emitted from the image light exit surface and the pupil can be easily and stably matched from the beginning using Maxwell's view.

  That is, since the video camera device 3 is integrated with the electronic glasses main body 2, the display device (display) can be held with only one hand without using both hands, and an image by a video signal can be viewed or via an image input device. By looking at newspapers, reading books, and looking around the surrounding environment, it is possible to realize a versatile and portable visual aid for low vision people.

  In this case, it can be easily carried anywhere and an image input from the outside can be viewed via the screen light emitting unit 22 or an image can be viewed from the video camera device 3 via the screen light emitting unit 22. it can. In addition, since the visual axis of the display and the optical axis of the video camera device 3 coincide with each other, it is an easy-to-use device having no parallax and excellent ergonomics.

In addition, the video camera device 3 can be taken from the electronic glasses main body 2 and can be photographed in a narrow place while being connected to the electronic glasses main body 2.
(Embodiment 2)
In the second embodiment, a case will be described in which an electronic glasses main body 2A described later is attached and fixed to a stand member.

  FIG. 2 is a perspective view showing a configuration example of a scope-type multipurpose electronic glasses according to Embodiment 2 of the present invention. In addition, the same code | symbol is attached | subjected to the member which show | plays the effect similar to the member of FIG.

  In FIG. 2, the scope-type multipurpose electronic glasses 10 of the second embodiment includes an electronic glasses main body 2 </ b> A in which image light with high directivity using Maxwell's view is emitted from an emission unit (display screen of a display device); Video camera device 3 as an image input device installed at the step on the upper surface of electronic glasses main body 2A, and eye cup means for surrounding the periphery of the image light emitting portion (display screen of display device; eyepiece) in a cup shape The eye cup 4 and the stand member 5 attached so that the surface of the electronic glasses main body 2A on the side of the constricted portion 23a is on the lower side.

  In the electronic glasses main body 2A, in addition to the configuration of the electronic glasses main body 2 of the first embodiment, a mounting portion (not shown) by screws or an insertion is provided so that the constricted portion 23a side faces down. Has been.

  The stand member 5 has a notch 51a formed on one side (here, the left side) of the base plate member 51 and is formed in a U-shape in plan view. The stand member 5 has a central portion from the U-shaped base 51b to the other end. A support bar 52 is erected to support the electronic glasses main body 2A. The camera lens of the video camera device 3 is located above the notch 51a.

  With the configuration described above, the electronic glasses main body 2A is attached to the support rod 52 of the stand member 5, so that characters, pictures, etc. such as newspapers and magazines are photographed as subjects by the video camera device 3 through the notch 51a. You can see this. In this case, the user can stably read a character or a pattern at a short distance while maintaining a certain position (distance). Also, the user can continue to watch the video comfortably for a long time without using both hands.

  In the second embodiment, the stand member 5 is placed on the surface of a newspaper or magazine, and the electronic glasses main body 2A is supported on the stand member 5 so that the surface of the electronic glasses main body 2A on the side of the constricted portion 23a is on the lower side. The case where the video camera device 3 is attached to the stick 52 to shoot a newspaper or magazine type has been described. However, the present invention is not limited to this. The bottom surface 24 side of the electronic glasses main body 2B may be attached to the support bar 52 of the stand member 5 as shown in FIG. In this case, in addition to the configuration of the electronic eyeglass body 2 of the first embodiment, the electronic eyeglass body 2B is provided with an attachment portion (not shown) for attaching the electronic eyeglass body 2B so that the bottom surface 24 side is on the lower side. Is done.

  In the stand member 5, the bottom surface 24 side of the electronic glasses main body 2 </ b> B is attached to the distal end portion of the support bar 52 erected on the base plate member 51 via the attachment portion. In this case, the camera lens of the video camera device 3 is oriented in the horizontal direction, and it is easy to photograph a subject such as a landscape.

  Therefore, if the electronic glasses main body 2A or 2B is fixed using the stand member 5, it can be used for newspapers, materials, reading, etc., and can also be used for writing with a writing tool, and further detailed work. Sometimes it can be used. You can also watch movies and TV (television) for a long time without using both hands.

In FIG. 2 of the second embodiment, the eye cup 4 is opened and attached so that the user peeks from above, but in addition to or separately from the display screen of the screen light emitting unit 22 If the (eyepiece) is provided on the upper surface 25A of the electronic eyeglass main body 2A, the eye cup 4 is also attached so as to surround the eyepiece (display screen), and the user can view the display screen (eyepiece) from the lateral direction (horizontal direction). Lens). When there are two display screens (eyepieces) of the screen light emitting unit 22, the optical path can be changed to one of the two display screens by switching the optical system (mirror).
(Embodiment 3)
In Embodiment 3, the eyecup 4 of Embodiments 1 and 2 is not used, and instead of the eyecup 4, the surface of the electronic eyeglass main body provided with the display screen (eyepiece) of the screen light emitting unit 22 is used. The case where it is dented is demonstrated.

  FIG. 4 is a perspective view showing a configuration example of the scope-type multipurpose electronic glasses according to Embodiment 3 of the present invention. In addition, the same code | symbol is attached | subjected to the member which show | plays the effect similar to the member of FIG.

  In FIG. 4, the scope-type multipurpose electronic glasses 20 of Embodiment 3 have an electronic glasses main body 2 </ b> C in which image light with high directivity using Maxwell's view is emitted from the emitting portion (display screen of the display device). A camera lens (not shown) is installed on the front surface of the electronic glasses main body 2C, and a video camera device (not shown) as an image input device is built in and integrated with the electronic glasses main body 2C. .

  The electronic glasses main body 2C has an image light emitting portion 22 (not shown, not shown, of the display device) disposed at the bottom of the end surface where the central surface of the columnar projection portion erected at the center position on the front side of the box upper portion is recessed. Display screen). Here, the grip portion 23 of the first embodiment is not provided, but the electronic glasses main body 2C itself is held by hand, and the image light convergence point from the image light emitting portion 22 is adjusted to the position of the pupil. Yes.

  In the electronic glasses main body 2C, as in the case of the first embodiment, a video camera device (not shown) and image data of a subject photographed by the video camera device are inputted and predetermined signal processing is performed. A processing unit (not shown), a display image forming unit (not shown) such as a liquid crystal display device displayed by a light source based on image data subjected to predetermined signal processing by the signal processing unit, and the display Built-in screen light emitting unit 22 (including the display screen of the display device) that emits screen light according to Maxwell based on image light from the image forming unit, and a power source (battery) that can supply power to each unit Has been. As a result, it is very compact.

  As described above, according to the first to third embodiments, the electronic glasses main body 2 in which image light with high directivity using Maxwell's view is emitted from the emitting unit 22 (display screen of the display device), and the electronic glasses main body 2 are used. Since the video camera device 3 installed in front of the camera is integrated with the video camera device 3, it can be easily carried and can be held with one hand to easily and stably adjust the convergence point of Maxwell's vision within the range of the pupil of the eye. .

  Although not specifically described in the first and second embodiments, the eye cup means used for both eyes (FIGS. 1 to 3) having the same shape (the outer peripheral edge is circular or elliptical) between the left and right eyes. It explains about.

  In the first to third embodiments, the scope-type versatile electronic glasses 1, 10, and 20 have been described for one eye. However, the present invention is not limited to this, and if the left and right parts are connected together, they are also used for both eyes. You can also. For example, by providing two scope-type electronic glasses 1, 10 or 20 according to Embodiments 1 to 3 for both eyes, the right and left eyes can be used not only for healthy subjects but also for low vision people. It can also be applied to stereoscopic (3D) images in which the user can see the images separately and feel the depth.

  Although not particularly described in the first to third embodiments, the optical system constituting the display screen (display) of the display device is naturally integrated with the control circuit, the power source (battery, etc.) and the camera device. It is made compact so that it can be operated with one hand.

  In addition, a video interface may be provided as an input / output interface so that it can be used only as a display. The video interface may have an input terminal for receiving an external video input signal. Furthermore, an external memory interface as an input / output interface that can be applied to a memory as a video storage medium as a low vision camera may be provided. As a result, an image from the memory can be displayed on the display screen, and a photographed image can be stored in the memory. Furthermore, a TV (television) tuner can be built in and a TV screen can be directly viewed.

  As mentioned above, although this invention has been illustrated using preferable Embodiment 1-3 of this invention, this invention should not be limited and limited to this Embodiment 1-3. It is understood that the scope of the present invention should be construed only by the claims. It is understood that those skilled in the art can implement an equivalent range based on the description of the present invention and the common general technical knowledge from the description of specific preferred embodiments 1 to 3 of the present invention. Patents, patent applications, and documents cited herein should be incorporated by reference in their entirety, as if the contents themselves were specifically described herein. Understood.

  The present invention relates to the scope-type multipurpose electronic glasses provided with a display device for projecting an image directly to the retina through the pupil using Maxwell's vision, and the scope-type multipurpose electronic glasses of the present invention can be used with one hand. Thus, the convergence point of Maxwellian vision can be easily and stably adjusted within the range of the pupil of the eye. In addition, since the image input device is integrated with the main body of electronic glasses, you can hold the display with one hand without using both hands, view images by video signals, view newspapers via the image input device, And reading around the surrounding environment, it is possible to realize a visual aid device for low-sighted people who is versatile and portable.

It is a perspective view which shows the structural example of the scope type | mold versatile electronic glasses which concern on Embodiment 1 of this invention, Comprising: (a) And (b) is a perspective view which shows each case of a grip part. It is a perspective view which shows the structural example of the scope type | mold versatile electronic glasses which concern on Embodiment 2 of this invention. It is a perspective view which shows the other structural example of the scope type | mold versatile electronic glasses of FIG. It is a perspective view which shows the structural example of the scope type | mold versatile electronic glasses which concern on Embodiment 3 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,10,20 Scope type versatile electronic glasses 2, 2A, 2B, 2C Electronic glasses main body 21 Front step portion 22 Display image emitting portion 23, 23A Grip portion 24 Bottom surface 25A Top surface 3 Video camera device 4 Eye cup 5 Stand member 51 Base plate member 51a Notch 51b Bottom side

Claims (7)

Scope-type versatile electronic glasses using a display device for projecting images on the retina through the pupil of the eye by Maxwell's vision,
An image input device capable of photographing a subject and the image input device are provided, the subject is displayed on a display screen of the display device based on an image signal from the image input device, and the Maxwell view is viewed. A scope-type multipurpose electronic eyeglass comprising a main body of electronic eyeglasses from which the image light having high directivity used is emitted from the display screen of the display device.   The scope-type multipurpose electronic glasses according to claim 1, wherein a visual axis of the display screen and an optical axis of the image input device coincide with each other.   Eye cup means for both eyes, which is provided so as to surround the display screen in a cup shape, and allows the positional relationship between the display screen and the pupil to be fixed by placing the cup-shaped outer peripheral edge on the periphery of the eye The scope-type multipurpose electronic glasses according to claim 1, further comprising:   The scope-type multipurpose electronic glasses according to claim 1, wherein the electronic glasses main body is provided with a grip portion for holding the electronic glasses main body by hand.   The scope-type multipurpose electronic glasses according to claim 1, further comprising a stand member that supports and can be fixed to the electronic glasses main body, and the electronic glasses main body is provided with an attachment portion for attaching to the stand member.   The electronic glasses main body includes at least one of an input interface that allows an image signal to be externally input and display an image on the display screen, and an output interface that enables an image signal captured by the image input device to be externally output. The scope-type multipurpose electronic glasses according to claim 1, wherein   The display device forms a display image based on a signal processing unit that enables signal processing of an image signal from the image input device or the outside, and an image signal that has been subjected to predetermined signal processing by the signal processing unit. 2. The image forming unit according to claim 1, further comprising: an image forming unit; and an image light emitting unit configured to emit image light with high directivity using Maxwell's view from the display screen using display image light from the display image forming unit. Scope type versatile electronic glasses.

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