JPS59164023U - fiberscope imaging device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

Fig. 1 is a side view showing the endoscope, imaging device, and camera for taking endoscopic images separated, Fig. 2 is an enlarged schematic diagram of the end face shape of the optical fiber, and Fig. 3 is a conventional fiberscope. A plan view schematically showing the enlarged image □ of the eyepiece, Fig. 4 is a graph showing an example of the light intensity distribution of the image observed by the optical fiber in Fig. 3, and Fig. 5 shows the photographing device of the present invention and its connection. An optical system diagram showing an example of the basic configuration of an eyepiece and a camera body, FIG. 6 is a perspective view of the main parts showing an embodiment of the photographing device of the present invention, and FIGS. 7A and B show an optical unit having birefringence. A front view and a right side view showing the inclination of the optical axis of the crystal plate and the direction of image separation; Figure 8A and B are a plan view and graph showing an example of the separated image and its light intensity distribution; Figure 9 1 is a plan view schematically showing an example of an observed image according to the present invention;
Figure 0 is a graph showing an example of the light intensity distribution of the observed image.
1A and 1B are a front view and a right side view showing another embodiment of the present invention, FIG. 12 is a plan view showing an example of an image separation state according to the embodiment of FIG. 11, and FIG. A plan view illustrating the bisector of the image separation direction of two birefringent optical single crystal plates, 1st
Figure 4 is a plan view for explaining the angle between the above bisector and the horizontal line of the visual field frame of the eyepiece, and Figure 15 is for explaining the angle between the above bisector and the scanning line of the TV camera. 16 and 17 are perspective views of essential parts showing other embodiments of the photographing device according to the present invention, respectively. DESCRIPTION OF SYMBOLS 1... Body insertion part, 3... Eyepiece device, 4... Optical fiber, 4a... Core part, 4b... Clad part,
4C...Dark area, 5...Field frame, 6...Photographing device, 7...Still camera, 8...TV camera, 9...
... Optical fiber bundle, 9a... Output end surface, 10...
Eyepiece lens, 12... Photographing lens, 13... Birefringent optical single crystal plate, 14... Adapter casing, 15
．． 22... Crystal plate support, 16... Teeth, 17.27
...Rotation knob, 18.26...Pinion, 20.2
1a, 2 lb--Separated image, 23... Operating rod, 24... Circumferential groove, 25... Gear. Figure 11 Figure 12

Claims (5)

[Scope of utility model registration request] (1) In a photographing device interposed between an eyepiece for observing the rear end exit surface of the optical fiber bundle for image transmission and a camera to photograph the image observed by the eyepiece, inside the photographing device, Two optical single-crystal plates, which have birefringence and can separate the observation image formed in the core portion of each optical fiber into a plurality of pieces, are stacked in the optical axis direction of the photographing optical system, and A fiberscope photographing device characterized in that two birefringent optical single crystal plates can be rotated and adjusted around the optical axis of a photographing optical system. (2) Utility model registration In claim 1, two birefringent optical single crystal plates are fixed to a single annular crystal plate support so as not to rotate relative to each other. A fiberscope photographing device in which a gear is formed on the outer periphery, and this gear meshes with a gear rotatably supported on an adapter casing.・ (3) In claim 1 of the utility model registration, two birefringent optical single crystal plates are fixed to a single annular crystal plate support so as not to rotate relative to each other, and A fiberscope photographing device in which a radially protruding operating rod protrudes outward from a circumferential groove of an adapter casing and can be rotated. L. (4) Utility Model Registration In claim 1, the means for rotating the two birefringent optical single crystal plates includes an integral rotation means for rotating them together, and a relative rotation between them. A fiberscope imaging adapter consisting of both a relative rotation means that provides motion. (5) Utility model registration In claim 4, the relative rotation means between two birefringent optical single crystal plates is rotatably supported by an adapter casing that supports each of the optical single crystal plates. The annular crystal plate supports are meshed with the teeth formed on the mutually opposing annular portions of the two crystal supports at the same time, and the two crystal plate supports are rotated. and a gear rotatably supported on the adapter casing to rotate the gears in opposite directions, and the integral rotation means is a guide for moving the gears along the circumferential groove of the adapter casing without rotating them A fiberscope imaging device consisting of means.