JPS6359289A - Industrial television device - Google Patents

Abstract

PURPOSE:To simplify a device, by integrating a camera and a monitor by using an optical fiber scope, on the tip of which an objective lens is provided. CONSTITUTION:The optical fiber scope 2, on the tip of which the objective lens 1 is provided, propagates an object image obtained by the objective lens 1. An image receiver 3, after converting and processing the object image propagated by the optical fiber scope 2 to an electric signal, displays it on a screen. The image receiver 3 is constituted of a photoelectric converting part 3A which converts an optical signal to the electrical signal, an amplifier part 3B which amplifies an obtained electric signal, a polarizing part 3C which scans an amplified electric signal, and a CRT3D which displays a scanned electric signal on the screen.

Description

[Detailed description of the invention] [Industrial application field] This invention is an industrial television (hereinafter referred to as ITV).

) device.

[Conventional technology]

A conventional ITV device of this type is shown in FIG.

In the figure, 4 is a photographic lens, 5 is a camera equipped with the photographic lens 4, 6 is a coaxial cable for transmitting video signals, and 7 is a coaxial cable for transmitting video signals.
8 is a receiver that reproduces the transmitted signal, and 8 is a camera 5 and a receiver 7.
This is a power cord for supplying power χ.

Next, the operation will be explained. The optical signal of the object photographed by the photographic lens 4 is converted into an electrical signal by the imaging tube in the camera 5, and then amplified, added with a synchronous signal, and adjusted for deflection, and then transmitted as a video signal via a coaxial cable 6. . The transmitted video signal is converted back into an electrical signal and an optical signal. Further, images are reproduced on a receiver 7 equipped with a deflection circuit for operating a cathode ray tube (hereinafter referred to as GILT) and a circuit for synchronizing with the camera 5.

[Problem that the invention seeks to solve]

Since the conventional ITV equipment is purchased as described above, is it an electronic circuit? Equipped with equipment! It was necessary to install it at both ends of the coaxial cable. Also, signals from devices at both ends! It needed to be synchronized.

This invention has been made to eliminate the drawbacks of the prior art as described above, and has as its object to provide an ITV device which can integrate a camera, a coaxial cable, and a receiver.

[Means for solving problems]

The ITV device according to the present invention uses an objective lens and an optical fiber scope to extend the size of the imaging lens, and also integrates a camera and a monitor.

[Effect]

The ITV device of the present invention (1) By integrating the camera and monitor, the signal generation processing circuit for balancing the camera and monitor can be reduced, the number of failures can be reduced, and maintainability can be improved.

[Embodiment] Hereinafter, an embodiment of the present invention will be described. 1st
In the figure, 1 is the objective lens, and 2 is the objective lens 1 at the tip.
The original fiber scope 6, which is equipped with an optical fiber scope and transmits the object image obtained by the objective lens 1, is a receiver that converts the object image propagated by the original fiber scope 2 into an electrical signal, processes it, and displays it on a screen. be. This receiver 6 includes a photoelectric conversion unit (hereinafter referred to as 07E) 3A that converts the original signal into an electric signal, an amplification unit (hereinafter referred to as AMP) 3B that amplifies the obtained electric signal, and an amplified electric signal. It consists of a polarizing unit 6C that scans the image, and a CRT 3D that projects the scanned electrical signals on a video screen.

Next, the operation will be explained. Objective lens 1 has a certain viewing angle! This lens plays the same role as conventional and general optical systems. In the original fiber scope 2, the object image Z captured by the objective lens 1 propagates light with low attenuation.

The source that propagated through the original fiber scope 2 (No. M is the receiver 6
The signal is first converted into an electrical signal by the O/E 3A, and then the electrical signal is amplified to a predetermined signal level by the AMP 3B. AMP3B has a feedback function according to the amount of light. The electrical signal output from AMP6B is D
The image is scanned by the EF5C and displayed on the CRT3D screen.

As described above, the object obtained by objective lens 1 is CRT3
It will be displayed on the screen of D.

〔Effect of the invention〕

As described above, according to the present invention, the camera and monitor are integrated using a former fiber scope equipped with an objective lens at the tip, so the device can be simplified and the number of failures can be reduced. This has the effect of improving maintainability.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an ITV device according to an embodiment of the present invention, and FIG. 2 is a block diagram showing a conventional ITV device. 1 is an objective lens, 2 is an optical fiber scope, and 6 is a receiver. Patent applicant Mitsubishi Electric Corporation Figure 1 1: Evening'! 1'l', Resistor 2: Fiber end scope 3C: Figure 2

Claims (2)

[Claims] (1) Equipped with an optical fiber scope equipped with an objective lens at the tip, and an image receiver that converts the optical image propagated by the optical fiber scope into an electrical signal, processes it, and projects it on the screen of a cathode ray tube. Industrial television equipment. (2) a photoelectric conversion unit that converts the optical image propagated by the optical fiber scope into an electrical signal;
It is composed of an amplifying section that amplifies the electrical signal output from the photoelectric conversion section, a polarizing section that scans the electrical signal output from the amplifying section, and a cathode ray tube that displays the electrical signal scanned by the polarizing section. An industrial television apparatus according to claim 1, characterized in that: