JPH019931Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an endoscope that can be connected to a television camera or a still camera.

In industrial and medical endoscopes, the object to be observed is photographed using a television camera or still camera. However, this method has the disadvantage that the object to be observed must be viewed through the camera's viewfinder while shooting, and the observation cannot be performed when the camera is attached or detached. ing.

The purpose of this invention is to solve these drawbacks, and the rear part of the image guide protrudes and extends from the handle, making it possible to face the camera at the tip and using a spectral amount device such as a beam splitter. A portion of the light is directed through an optical fiber bundle for image transmission to an eyepiece lens, and this eyepiece lens can be attached to and removed from the handle, making it possible to take pictures while always admiring the object to be observed, and without the need for an eyepiece lens. It is characterized in that it can be attached to the handle depending on the situation.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a partially cutaway side view showing the entire endoscope, and FIG. 2 is a side sectional view of the main part. 1 is an endoscope, 2 is a flexible tube, and 3 is a handle. Reference numeral 4 designates an image guide consisting of a bundle of optical fibers for image transmission projected and extended from the handle 3, and facing the tip thereof is a semi-transparent prism,
A spectral amount device 5 such as a semi-transmissive mirror or a beam splitter is provided, and a lens system 6 is further arranged opposite to it. In addition, a reflecting member 7 such as a prism or a reflecting mirror is provided in the direction in which the spectral amount is quantized by the spectral amount device, and one end surface of the optical fiber bundle 8 for image transmission is opposed to the reflection direction of the reflecting member 7, and the other end surface is to face the eyepiece lens 9. Reference numeral 10 denotes a case which houses the above-described image guide 4 and the ends of the image-transferring optical fiber bundle 8, as well as a spectrometer 5, a lens system 6, and a reflecting member 7.

11 is also a case, which houses the end of the optical fiber bundle 8 for image transmission and the eyepiece 11, and the handle 3.
The eyepiece lens 11 is removably attached to the rear end.
The focus is now adjustable.

In the drawing, 12 is a light guide made of a bundle of optical fibers for light transmission, 13 is an air and water supply tube, and 14 is a suction tube. Further, in the above embodiment, the reflecting member may be omitted and the image-transmitting optical fiber bundles may be directly opposed to each other through a lens.

To describe the operation of the present invention having the above configuration,
Most of the image light sent to the image guide 4 is sent to the lens system 6 via the spectral amount device 5, and the other image light that has been spectralized by the spectral amount sending device 5 is sent to the reflecting member 7. The image is then sent to the eyepiece lens 9 via the image sending optical fiber bundle 8. Therefore, if necessary, case 1
1 to the handle 3, it is possible to observe the object through the eyepiece 9 and photograph its image with the camera 15 directed toward the lens system 6, or to simply observe the object.

According to the present invention having the above-described structure and function, the rear part of the image guide is extended to protrude from the handle, and a part of the light of the image is spectralized by the spectral quantity device, and is transmitted to the optical fiber bundle for image transmission. The eyepiece is split from the endoscope and sent to the eyepiece, and this eyepiece can be attached to and removed from the handle, making it possible to point the camera at the lens system while observing with the eyepiece, making it possible to take pictures while observing. Furthermore, since the eyepiece is removable from the handle, observation can be performed at any desired position.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional side view of the eyepiece with the eyepiece removed from the handle, and FIG. 2 is a side sectional view of the main part with the eyepiece attached to the handle. 1... Endoscope, 2... Flexible tube, 3... Handle, 4
...Image guide, 5...Spectrometer, 6...
Lens system, 8... Optical fiber bundle for image transmission, 9... Eyepiece, 10... Case, 11... Case.

Claims (1)

[Scope of utility model registration request] The rear part of the image guide protrudes and extends from the handle, and its end faces the spectroscopic device, and the spectroscopic device is further opposed to the lens system, and one end of the optical fiber bundle for image transmission is placed in the spectral direction of the spectroscopic device. The end of the optical fiber bundle for image transmission and the eyepiece are housed in a case with the other end facing the eyepiece and the other end facing the eyepiece, and the case is detachable from the handle. mirror.