JPS5813087A - Picture observing device - Google Patents

Abstract

PURPOSE:To obtain a device which can freely observe pictures of television sets at optional locations, by focussing television pictures with an image forming lens and by optically transmitting the focussed pictures through an optically conductive line, such as fiber scope, etc. CONSTITUTION:A television picture 32 is reduced and focussed on an end face 30a of an optically conductive cable 30 by an image forming lens 31, and the focussed optical picture is transmitted to the other end face 30b through the optically conductive cable 30, such as fiber scope, etc. and the same optical picture is displayed. This optical picture is enlarged by a condenser 33 and the enlarged picture is observed by the naked eye 50c. When relative locations of the picture 32 to the image forming lens 31 and the optical picture face 30a and those of the other optical picture face 30b to the condenser 33 and the naked eye 50c are set to prescribed dimensions, the picture 32 is observed at a free relative location by the optically conductive cable 30.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for indirectly observing images of a television receiver using a fiberscope or the like used in some medical instruments.

Conventionally, the video signals of television receivers have always been images on a cathode ray tube that are viewed directly by the human eye. When used indoors or outdoors, various front plates are installed in front of the cathode ray tube to prevent reflections from lighting and sunlight. On the other hand, when used in a remote location, a large cathode ray tube is used. Furthermore, depending on the installation condition, it was considered whether the usage conditions could be improved by providing measures such as installing cent legs or a rotating table. However, in both cases, viewers were limited to locations where they could directly view the Blavsi tube. For this reason, the scope of use is very narrow compared to listening to sound through earphones or headphones.The present invention utilizes optical conduction wires such as fiberscopes to freely listen to television receivers at any location. The purpose is to provide a device that allows images to be observed.

An embodiment of the present invention will be described below in conjunction with a micro television receiver using a 1.5 inch cathode ray tube.

FIGS. 1 and 2 are perspective views of the installation of a general portable micro television receiver, respectively. In the figure, 1 is a cathode ray tube, 2 is a front panel, 3 is a centimeter leg, 4 is an antenna,
5 is a hood with a magnifying lens. Furthermore, it has been miniaturized to expand the viewing range.

It is portable with a built-in battery and a hand strap 6, but viewing is limited to the state in which the cathode ray tube 1 is directly observed by the human eye. Regarding attachment to the body, please refer to 1. Television receivers, which display images on cathode ray tubes, have large casings and cannot be easily mounted overhead.

The present invention eliminates the above-mentioned conventional drawbacks.The present invention focuses the image on the cathode ray tube using an imaging lens, transmits it to an arbitrary location via an optical conduction cable, converts it into nearly parallel light using the focusing lens, and creates an arbitrary state. The image is observed with the naked eye.

An example of this will be described below with reference to FIGS. 3 to 6.

Figure 3 shows the basic principle of the present invention, where 3o is an optical conduction cable and a fiberscope (one of the medical instruments).

A tube made by bundling glass fibers into a tube with a diameter of 1 (to) or less, with lenses attached to both ends, and a tube that allows you to see the other side even when bent, and is used for internal observation and photography of the esophagus, stomach, etc.), etc. It consists of 31 is an imaging lens, and image 32
is reduced and imaged onto the end face 301L of the optical conduction cable 3o.

The formed optical image is transmitted onto one end surface 30b by an optical conduction cable 3o which functions and plays the same role as a fiberscope, etc., and displays the same optical image. °
The image on this optical image plane is magnified by a condensing lens 33 and observed with the naked eye 50c. Image 32 and imaging lens 3
If the positional relationship between 1 and the optical image plane 30a and the positional relationship between the other optical image plane 30b, the condensing lens 33, and the naked eye SOC are set to predetermined dimensions, the optical conduction cable 3o can create the following free relationship. At the position, the image 32 can be observed with the naked eye 50C. Note that 60 is the head.

FIG. 4 is an explanatory diagram showing a specific example of the present invention.

4o is a completed optical conduction cable, both ends of which constitute connector parts 40a and 40b, and connector parts 411L, 4aa and gx of the completed imaging hood 41 and the completed condensing hood 43, respectively. It is designed to be freely screwed together. The cable complete product 4o is flexible and can be placed in any location in any state.
Set up the TV.

The image on the cathode ray tube 1 of the John receiver 42 can be transmitted and observed through the completed imaging hood 41.

Connector portions 40&, 40b at both ends of both completed hoods 41, 4'3 and completed cable 4°.

41&, 432L are screwed together to adjust the fish gathering of the image.
It has a structure. Fixed settings are also available if needed.

The imaging lens 31 is fixed to the center of the main body 41b of the completed imaging hood 41, one side of the completed hood 41 is fitted with a cathode ray tube 1 part of the television receiver 42, and the opposite side is constituted by a portion of the same connector 412L. The condensing hood is completed and fixed, one side forms a connector part 431L for threading connection with the connecting connector part 40b of the completed cable product 4o, and the other side forms an external light shielding hood that can be observed with the naked eye at 60 C. There is The hardness and shape of both hood bodies 41 b and 43 b can be freely set as long as they are made of a material that blocks light from the outside.

In the above configuration, by appropriately combining the shape, size, and length of the optical conduction cable complete product 4o and the imaging hood complete product 41, the image on the cathode ray tube 1 of the television receiver 42 can be indirectly controlled. 0. Next, another embodiment of the present invention will be described with reference to FIG. 5. FIG. 2 is a diagram illustrating the use of a device in which a completed condensing hood is combined with a conventional stereo phone. In the figure, 61 is a headphone with a condensing hood, and both ff! Stereo on the t1 side
The horns 51b, 51b are fixed, and a condensing hood 51& is movably attached from the center of the connecting band. FIG. 5 is a side view of headphones with a condensing hood attached to the head at an angle of 6 degrees, and FIG. 5B is a top view of the same. Although not shown in the drawings, images are transmitted to the condensing hood 51a and sounds are transmitted to the stereo phones 51b and 51b for use by respective cables. Image also condensing hood 51f
Since it is displayed in L, you can easily observe the image while moving, just like the conventional voice volume.

As is clear from the description of the embodiments above, according to the present invention, images from a television receiver are focused by an imaging lens and transmitted using an optical conductive line such as a fiberscope, so that images can be captured anywhere at any location. Since the stone statue can be observed in this condition, the image on the television receiver can be observed anywhere indoors or outdoors. Additionally, since it is not affected by external light, the hood, front panel, centimeter legs, and magnifying lens of conventional models can be removed.

In the example shown below, the device of the present invention is configured independently, but it is also possible to combine the completed imaging hood with the casing of a television receiver to form an integrated unit and design it as a dedicated model. For example, cathode ray tubes have also become extremely compact, making it possible to further advance miniaturization of design.

Furthermore, in recent years, prototypes of LCD televisions have appeared to replace cathode ray tubes. There are many unresolved problems before commercialization due to the dark brightness, difficulty in increasing the brightness, and the need for external light, but if the present invention is adopted, most of these problems can be solved. This will solve the problem and speed up commercialization. The present invention is expected to be used more as a television for information equipment than as a television for entertainment.

If the basic principle of the present invention is further introduced into the viewfinder mechanism of a video camera, etc., the basic structure, which is limited by the current optical layout, will be greatly improved, operability will be improved, and an extremely compact device will be provided. It is something that can be done.

[Brief explanation of drawings]

Figures 1 and 2 are perspective views of the installation of a general portable micro television receiver, and Figure 3 is a perspective view of the installation of a general portable micro television receiver.
FIG. 4 is an explanatory diagram of the image observation device according to an embodiment of the present invention, and FIG.
This is a usage diagram when a condensing hood is added to stereo headphones in another embodiment of the present invention. 3o°゛゛°“Optical conducting wire for fiberscopes, etc., 3
0&, 30b... optical image plane of optical conduction line,
31...imaging lens, 32...image,
33...Condensing lens, 4o°°°°°゛Completed optical conduction cable, 40J40b...Part of the connector for the completed optical conduction cable, 41°°゛... Imaging hood complete product, 41&... Connector part, 41b... Imaging hood main body, 42...
...Micro television receiver, 431...°
Completed light condensing hood, 43. IL...Part of the connector, 43b...The main body of the condensing hood. 5o...
・・Head, SOC・・・・Macroscopic %, 51°°”°°
°Headphone, 61b...Stereo, Horn. Name of agent: Patent attorney Satoshi Nakao and 1 other person @
1 figure

Claims (1)

[Claims] (1) By focusing the image of a television receiver using an imaging lens and optically transmitting it using an optical conduction line such as a fiberscope, it can be transmitted at any location and in any state. A 5-image observation device that allows images to be observed. (An imaging hood with one end shaped like a cylinder to cover the plow/tube of a television receiver and equipped with an imaging lens inside; one end shaped like a cylinder to cover the naked eye and equipped with a condensing lens inside. The image observation device 6 according to claim 1, further comprising: a condensing hood, and an optical conductive wire is connected between the other end of the imaging hood and the other end of the condensing hood. The image observation device according to claim 2, wherein the condensing hood is attached to a headphone equipped with a pair of stereo horns.