JPH03188777A - Face mount type visual device - Google Patents

Abstract

PURPOSE:To observe a bright and easy to see magnified picture practically by arranging a beam splitter in front of both eyes and reflecting two picture images efficiently in forward concaved mirror from a dead angle of both the eyes so as to synthesize the two magnified pictures without distortion. CONSTITUTION:When a visual device is mounted to a head A of the user with a couple head bands 20, 21, the user observes a surrounding scenery through a concaved mirror 4 of a device main body 2. That is, an external light is transmitted through the concaved mirror 4 being a half mirror and transmits through the beam splitter in front of the eyes and reaches both the eyes. The beam splitter 13 locates each TV picture B reflected in the concaved mirror 4 within a focus of the concaved mirror 4. Thus, the user observes the TV picture of an erected imaginary image magnified by several tens of times from the TV picture B with both the eyes without distortion.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a face-mounted visual device that is worn on the face and allows the user to enlarge and view images on a television or the like.

[Summary of the Invention] The present invention provides a face-mounted visual device for personal viewing of enlarged images on a television, etc., in which a beam splitter is placed in front of both eyes to display two images from the blind spots of both eyes. The light is efficiently reflected to the concave mirror in front, and then the light reflected by the concave mirror is efficiently transmitted, converging two magnified images in each eye, and distorting the two magnified images with both eyes. By making it possible to synthesize images without any need for image processing, it is possible to practically view enlarged images that are bright and easy to see.

[Prior Art] Currently, large television receivers and projectors are preferred by users. This is because those large screens provide a sense of realism. By the way, in the past, large speakers and high-power amplifiers were important items among young people. However, once headphone stereos were released, large speakers and their amplifiers became obsolete in business terms. This is because when wearing headphone stereo headphones, the sound was comparable to that of large speakers. If you think about it this way, large televisions and projectors can be worn on the face and focus relatively small images on both eyes from a very close distance, making it easier for people to see larger images. If a visual device that can do this is created, it is expected that it will become obsolete. Therefore, it can be said that such a visual device is what the times are looking for.

In order to meet the demands of the times, the present applicant previously proposed in Japanese Patent Application No. 62-292585' that LCD televisions were placed in the blind spots of both eyes and reflected by a concave mirror in front of the eyes. We proposed a visual device that allows the viewer to view a single television picture with both eyes.

[Problems to be Solved by the Invention] However, in the visual device in the above-mentioned conventional technology,
Since a single image is viewed from a very close distance with both eyes, the edges of the image appear distorted and deformed, making it extremely difficult to see.

The present invention was devised to solve the above-mentioned problems, and an object of the present invention is to provide a practical face-mounted visual device in which the edges of images can be seen clearly without distortion.

[Means for Solving the Problems] The configuration of the face-mounted visual device of the present invention for achieving the above object is as follows: tilted beam splitters are placed in front of both eyes, and a beam splitter is placed in front of each eye. A concave mirror is arranged, and image reproducing means is arranged so that each of the two images is reflected by the corresponding beam splitter, then reflected by the concave mirror, and then transmitted through the beam splitter and converged on each eye. It is characterized by being placed in the blind spot of both eyes.

[Operation] In the present invention, a beam splitter is placed in front of both eyes, and two images obtained from an image reproduction means placed in the blind spots of both eyes are individually and efficiently reflected to a concave mirror, and the images are reflected by the concave mirror. By efficiently concentrating the magnified images on each eye, it is possible to synthesize two images comparable to a large-scale television picture without distortion, and the integration effect makes it possible to see clearly. .

[Example] Hereinafter, an example of the present invention will be described in detail based on the drawings.

1 and 2 are perspective views showing the structure of an embodiment of the present invention as seen from below and above, and FIG. 3 is a perspective view showing the mounting structure of a liquid crystal color television. 1 is a visual device, and its main body 2 is shaped like, for example, ski goggles. The upper and lower pieces 2 of this device main body 2
a, 2 b and left.

The right side pieces 2c and 2d are molded from synthetic resin,
It is black in color, and a concave mirror 4 made of a half mirror is fixed to the periphery of the front opening 3 by a predetermined means. In addition, rectangular holes 5 are formed at positions corresponding to both eyes of the upper piece 2a, and from the center of the rear end of the lower piece 2b to the front opening 3 side, a hole 5 is formed for nose contact. An inverted U-shaped recess 6 is formed, and a light-shielding rubber pad 8 for face contact is fixed to the periphery of the rear opening 7 by a predetermined means.

A liquid crystal color television (TV
) 10 is attached. This mounting frame 9 has a bottom plate portion 9a.
A cylindrical portion 9b having a rectangular cross section extends upwardly from the center of the bottom plate portion 9a, and a bottom plate portion 9 at the lower end of the cylindrical portion 9b.
Intermediate member 9 with a wedge-shaped cross section fixed to the face side edge of a
It is composed of C. A pair of long grooves 9 d and 9 d extending back and forth are formed on both sides of the bottom plate portion 9 a. Each fixing screw l fitted into this pair of long grooves 9d, 9d! The mounting frame 9 is connected to the upper piece 2a of the device main body 2 via
It is attached to the top and can be moved freely. In addition, the cylindrical portion 9
A pair of long grooves 9 extending vertically up and down on the front and rear sides of b.
e, 9 e is formed. This pair of long grooves 9e,
The liquid crystal color television IO is mounted so as to be vertically movable via each fixing screw I2 fitted into the panel 9e.

Further, the upper edge of a downwardly elongated trapezoidal beam splitter 13 is slanted toward the concave mirror 4 side and fixed to each of the intermediate members 9C. The beam splitter 13 is placed in front of both eyes when the user wears the goggle-like main body 2 on his/her face.

The LCD color television IO has a box-shaped television main body 14 that is movably mounted in the cylindrical portion 9b of the mounting frame 9.
A color filter, liquid crystal (none of which are shown), etc. are sandwiched between two glass substrates facing each other with one side coated with a conductive coating inside.・A liquid crystal display (LCD) panel 15, an internal reflector 16 placed inside the curved top side of the TV body 14, and a small cylindrical fluorescent lamp placed directly below the internal reflector 16. Light 1
7. These internal reflecting mirrors 16 and fluorescent lights 17
The liquid crystal backlight means 18 is constituted by the above-mentioned liquid crystal backlight means 18.

Elongated left and right headbands 20 and 21 are attached to the rear openings 7 of the left and right side pieces 2c and 2d of the device main body 2 via respective hinges 19.

Radband 2 to the outside of the tip of the left headband 20 and to the right.
Hook-shaped and loop-shaped hook-and-loop fasteners 22 and 23 are fixed to the inner side of the tip of 1. Also, inside this left and right headband 20.21, the left.

The right headphones 24 and 25 are slidably attached.

A box-shaped video reproduction circuit section 26 is connected to the right headphone 25 and is slidably attached to the outside of the right headband 21. As shown in an example of a block diagram of an electric circuit in FIG. 4, this video reproduction circuit section 26 includes a TV tuner 27, an LCD panel drive power source 28, a backlight inverter power source 29, and an amplifier power source 30. It has a built-in battery 3I, which is a power source, and a headphone amplifier 32. Furthermore, a TV antenna 33 is attached to the front side of the upper surface of the tuner 26, which can be rotated nine times to expand and contract, and which is housed within the video reproduction circuit section 26 when contracted.

Further, on the right side of the video playback circuit section 26, a power/volume adjustment switch 3 linked to a headpon variable resistor 34 is provided.
5, an LCD brightness adjustment button 37 linked to the LCD bright variable resistor 36, a TV tuner button 38 for channel advancement, and a bush-type standby button connected to the backlight inverter power supply 29 and headphone amplifier 32. A video input jack 4I having a protruding switch (mute switch) 39 and for connecting a video signal from an external device such as a VTR to the RGE process circuit 40;
An audio jack 42 for connecting an external audio signal such as a VTR to the headphone amplifier 32, and a remote control output (V) connected to the standby switch 39.
TR pause output) A judge 43 is provided.

The block diagram of the electric circuit in FIG. 4 shows the configuration of the video reproduction circuit in this embodiment. The video signal from the TV tuner 27 or the video signal from the video jack 41 is input to the RGB processing circuit 40 and subjected to signal processing. In this case, switching is performed so that the video signal from the video input jack 41 has priority over the video signal from the TV tuner 27. Similarly, the audio signal from the TV tuner 27 and the audio signal from the audio input jack 42 are input to the headphone amplifier 32 with priority given to the audio input jack 42 side.

Two LCD panels 15 (15R, 15
For L), separate controllers 44R, 4
4L is prepared, and R (red) and G (green) are signal-processed by the RGB process circuit 40.

Input the B (blue) signal, and on the other hand, controller 4
4Il→X driver circuit 45R, Y driver circuit 46R
On the other hand, the controller 44L-+X driver circuit 45t and Y driver circuit 46L drive the LCD panel t. The backlight fluorescent lights +7 (17R, 17L) of each LCD panel +5R, 15L are turned on by the backlight inverter power supply 29, and are turned off when the standby switch 39 is turned on.

Although not shown in the block diagram of FIG.
As shown in the figure and FIG. 2, it is also possible to provide a simple 3D switch 47 in the video reproduction circuit section 26 so that a 3D video to which Pulfrich's pendulum phenomenon is applied can be enjoyed. Pulfrich's pendulum phenomenon is when a pendulum that is swinging from side to side is viewed from the direction perpendicular to its swing, if you attach a reddish-purple filter to your right eye and a pale yellow filter to your left eye, the pendulum will swing from left to right. Sometimes it appears to move forward, and when it swings from right to left, it appears to recede, giving the appearance of an elliptical motion. This is because the image seen by the right eye with the reddish-purple filter is transmitted to the brain later than the image seen by the left eye with the pale yellow filter, creating an illusory parallax.

Therefore, each control circuit 44□, 44L, etc.
For example, in the case of an image running horizontally from right to left, the right image is adjusted to have a light yellow tint, and the left image is adjusted to have a reddish-purple tint. As a result, the left eye sees a phenomenon that occurred a little earlier in time than the right eye, but in a sideways image, nearby objects move quickly, so nearby objects appear to jump out. It will look like a 3D image. If the direction of horizontal running is opposite to that indicated in "-", you can adjust the color of the image in the opposite way to the above by switching the simple 3D switch.

Instead of the above color adjustment, simply darkening the image on the side to be adjusted to reddish-purple can also easily produce the stereoscopic effect of the horizontally running image. In this case, simple three-dimensional buttons may be provided on both the left and right sides, and the backlight (fluorescent lamp) 17 on the side where the buttons are pressed may be dimmed.

The operation and effect of the embodiment configured as above will be described.

FIGS. 5 and 6 are perspective views showing the above embodiment in use. When the power/volume control switch 35 is turned OFF and the visual device 1 is attached to the user's head A via a pair of headbands 20 and 21, the user can turn it around like ski goggles or sunglasses. The scenery etc. can be seen through the concave mirror 4 of the main body 2 of the device. That is,
In this state, the inside of the device main body 2 is dark, so outside light passes through the concave mirror 4, which is a half mirror, and further passes through the beam splitter in front of the eyes to reach both eyes.

When the power/volume control switch 35 of the video reproduction circuit section 26 is turned on from the above state, the two LCD color televisions 10
．． 10 TV picture B (Fig. 1) is beam splitter 13.
The light is efficiently reflected onto the reflecting surface of the concave mirror 4 via the mirror 13.

Each T reflected by the concave mirror 4 by this beam splitter I3
By locating the V image B within the focal length of the concave mirror 4, the user can individually distort the erect virtual TV image with both eyes, which is magnified several ten times as much as the TV image B. You can see it without any problems. Individual TV seen with both eyes in this way
Since there is no distortion in the edges of the picture, the brain sees it as being completely combined into a single TV picture B'.

As a result of the synthesis, the TV picture B' becomes very clear and very easy to see due to the integration effect.

Next, a case will be described in which it becomes necessary to respond to an external situation while watching television. For example, if the conductor calls out to you while you are watching television on the visual device I on a train, you press the standby switch 39.

This turns off the backlight inverter power.
At the same time, the headphone amplifier 32 is muted. Therefore, the backlight illumination is turned off and the TV picture B
disappears, so only the outside scenery can be seen through the concave mirror 4, and the volume of the headphones 24 and 25 is muted.
You will be able to hear the conductor's voice. In such a case, as shown in FIG.
If the video and audio are being supplied from the remote control, you can pause the video and audio using the remote control.

In addition, as shown in Fig. 6, when recording with a camera-integrated VTR 49, if this visual device l is also used,
The electronic viewfinder of the camera-integrated VTR 49 is no longer required, and the recording status can be viewed without closing one eye, eliminating fatigue and doubling the fun.

In the second embodiment, the concave mirror 4 is a half mirror, but a transparent member made of aluminum evaporated or a concave mirror that performs total reflection may also be used. In the above embodiment, two LCD panels 15RI5L were used as image reproducing means to obtain two images corresponding to both eyes, but one LC
The image on the D panel may be divided into two images by a half mirror. In addition, the video playback circuit section 2
A headphone jack is provided at 6, and headphones 24°25
It would be better to use inner ear headphones instead.

Furthermore, the shape of the visual device 1 is not limited to the shape of the above embodiment, and it goes without saying that it may have a structure in which a concave mirror or the like is attached to the brim of a hat. As described above, the present invention can be applied in various ways and can take various embodiments in accordance with the gist thereof.

[Effects of the Invention] As is clear from the above description, the face-mounted visual device of the present invention provides the following effects.

(1) By using a beam splitter, two systems of images can be efficiently focused separately on both eyes, so there is no distortion in the image edges, and the left and right images are added by the integration effect, making them clearer. This provides a practical visual device for one person.

(2) Compared to large televisions and projectors, images can be viewed on a large screen with extremely low power consumption.

(3) When viewing an image, there is no need to fix one's position; the user can view the image either standing or sitting, and can enjoy it alone without bothering others.

(4) According to the invention of claim 2, it is possible to enjoy images while visually checking the external situation.

[Brief explanation of drawings]

1 and 2 are perspective views showing the structure of an embodiment of the present invention, FIG. 3 is a perspective view showing the mounting structure of a liquid crystal color television, and FIG. 4 is a block diagram showing the structure of a video playback circuit. FIGS. 5 and 6 are perspective views showing the above embodiment in use. l... Visual device, 4... Concave mirror, 10... Liquid crystal color television, 13... Beam splitter, 15... L
CD panel. Figure 3

Claims (2)

[Claims] (1) An inclined beam splitter is placed in front of each eye, and a concave mirror is placed in front of the beam splitter, so that each of the two images is reflected by the corresponding beam splitter, and then reflected by the concave mirror. A face-mounted visual device characterized in that an image reproducing means is arranged in the blind spot of both eyes so that the image is transmitted through each beam splitter and converged on each eye. (2) The face-mounted visual device according to claim 1, wherein the concave mirror is a half mirror.