CN216148005U

CN216148005U - Endoscope with uniform image color

Info

Publication number: CN216148005U
Application number: CN202121418591.6U
Authority: CN
Inventors: 李文仁
Original assignee: Jiangsu Huashenglun Medical Instrument Co ltd
Current assignee: Jiangsu Huashenglun Medical Instrument Co ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2022-04-01
Anticipated expiration: 2031-06-24

Abstract

The utility model provides an endoscope that image colour is even for the department information is located gathering the inside pathological change of patient's health, belongs to medical instrument and makes the field, which comprises an outer shell, be equipped with image line, signal line, CMOS, power cord in the shell, the one end of image line, signal line, power cord is all connected CMOS's input, the one end central authorities of shell are equipped with CCD, CMOS's output end signal connection CCD, the tip that is equipped with CCD on the shell is in be equipped with the LED lamp around the CCD, the tip that is equipped with CCD on the shell still is equipped with and covers the light guide piece of LED lamp, correspond on the light guide piece CCD's output is equipped with the through-hole, has solved current endoscope illumination inhomogeneous, leads to the inhomogeneous problem of image colour.

Description

Endoscope with uniform image color

Technical Field

An endoscope with uniform image colors is used for collecting information of a lesion part in the body of a patient, and belongs to the field of manufacturing of medical instruments.

Background

As shown in fig. 1, the existing light source for endoscope is mainly disposed in the non-central area of one end of PCB, and CCD is disposed in the center of one end of PCB, so that the light source surrounds the CCD to provide illumination for CCD, so as to collect the condition of lesion of patient, however, this way may appear the condition of alternate light and shade, uneven illumination (as shown in fig. 2 and fig. 3), the condition of fig. 2 and fig. 3 appears, the image displayed by CCD has obvious black and white display, resulting in uneven color, therefore, the utility model discloses a technical scheme to be introduced below is researched through diligent effort.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art, designs an endoscope which ensures that an image displayed by a CCD does not have a light and dark intersection line and has uniform image color by adopting a mode of arranging a light guide sheet on an outer shell around the CCD, and solves the problem of nonuniform image color caused by nonuniform illumination of the existing endoscope.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:

the utility model provides an endoscope that image colour is even, includes the shell, in the shell, image line, signal line, CMOS, power cord, the one end of image line, signal line, power cord is all connected CMOS's input, the one end central authorities of shell are equipped with CCD, CMOS's output end signal connection CCD, the tip that is equipped with CCD on the shell is in be equipped with the LED lamp around CCD, the tip that is equipped with CCD on the shell still is equipped with and covers the light guide piece of LED lamp, the optical fiber connection light guide piece, correspond on the light guide piece CCD's output is equipped with the through-hole.

In the utility model, when the endoscope is used, the power line provides power for the CCD and the LED lamps, and the signal line and the image line are used for transmitting signals and image information of the CMOS and the CCD, and in practical application, because the CCD is arranged in the center, a plurality of LED lamps are arranged around the CCD, so that the periphery of the CCD is provided with light, and the CCD can acquire clear images.

Preferably, the light transmittance of the light guide sheet is 80-85%, and the distance between one surface of the light guide sheet close to the LED lamp and the light emitting surface of the LED lamp is 3-10 mm.

Preferably, the light guide sheet is made of PVC.

Preferably, the light source angle of the LED lamp is between 120 degrees and 140 degrees.

Preferably, the end of the housing on which the CCD is provided has 2 or more LED lamps around the CCD.

Preferably, the end of the housing having the CCD is provided with 4 LED lamps uniformly distributed around the CCD.

Preferably, the light transmission device is a through hole.

The utility model has the beneficial effects that:

(1) the utility model designs the endoscope which ensures that the image presented by the CCD does not have a light and shade connecting line and has uniform image color by adopting a mode of arranging the light guide sheet on the outer shell around the CCD, and solves the problem of nonuniform image color caused by nonuniform illumination of the existing endoscope.

(2) The light guide sheet is made of PVC material, so that the manufacturing difficulty of the light guide sheet is reduced, and the light guide sheet (light guide plate) can be directly bought in the market if the light guide sheet is not manufactured.

(3) The light transmittance of the light guide sheet is 80-85%, so that the light guide sheet can disperse the area where light is superposed, does not make the light become dark, and meets the requirement of practical application, the distance between one surface of the light guide sheet close to the LED lamp and the light emitting surface of the LED lamp is 3-10mm, and the light guide sheet can just fall in the area where all the light of the LED lamp is superposed, so that the effect of making the light uniform is achieved, and the condition that the light guide sheet is too far away from the LED lamp to cause the light to become weak is avoided.

Drawings

FIG. 1 is a schematic view of a prior art arrangement of LED lamps on an endoscope;

FIGS. 2 and 3 are graphs showing brightness of light irradiation of an LED lamp on an endoscope in the prior art;

FIG. 4 is a schematic structural view of the present invention;

fig. 5 is a schematic view of the structure of the end of the housing 1 provided with the light guiding sheet according to the present invention;

FIG. 6 is a graph of the brightness exhibited by the light illumination of an LED lamp on an endoscope in accordance with the present invention.

Wherein, 1, a shell; 2. an image line; 3. a signal line; 4. a CMOS; 5. a power line; 6. a light guide sheet; 7. a through hole; 8. an LED lamp; 9. a CCD.

Detailed Description

Example 1

Referring to fig. 2-6, an endoscope with uniform image color comprises a housing 1, wherein an image line 2, a signal line 3, a CMOS4 and a power line 5 are arranged in the housing 1, one end of the image line 2, one end of the signal line 3 and one end of the power line 5 are all connected with an input end of a CMOS4, a CCD9 is arranged in the center of one end of the housing 1, an output end of the CMOS4 is in signal connection with a CCD9, an LED lamp 8 is arranged around a CCD9 at an end part on which a CCD9 is arranged on the housing 1, a light guide sheet 6 capable of covering the LED lamp 8 is further arranged at an end part on which the CCD9 is arranged on the housing 1, and a light transmission device is arranged on the light guide sheet 6 corresponding to the output end of the CCD 9.

In this embodiment, when in use, the power line 5 provides power for the CCD9 and the LED lamp 8, and the signal line 3 and the video line 2 are used for signal and video information transmission of the CMOS4 and the CCD9, and in practical application, because the CCD9 is installed at the center of one end of the housing 1, a plurality of LED lamps 8 are installed around the CCD9, so that light is provided around the CCD9, and the CCD9 can collect clear images, whereas in the present invention, when the LED lamps 8 emit light, the light guide sheet 6 is installed on the LED lamps 8, so that the light guide sheet 6 uniformly disperses the light sources emitted by all the LED lamps 8, and thus, there is no strong light region (as shown in fig. 2 and fig. 3) due to superposition of the light sources emitted by the LED lamps 8, and the problem of non-uniform illumination of the existing endoscope, which causes non-uniform video color, so that the light of the region of the image collected by the CCD9 is uniform, there is no distinct bright-dark boundary, as shown by the light effect shown in fig. 6.

Example 2

As shown in fig. 4, an endoscope with uniform image color comprises a housing 1, wherein an image line 2, a signal line 3, a CMOS4 and a power line 5 are arranged in the housing 1, one end of the image line 2, the signal line 3 and the power line 5 are all connected with an input end of the CMOS4, a CCD9 is arranged in the center of one end of the housing 1, an output end of the CMOS4 is connected with a CCD9 in a signal manner, an end portion of the housing 1 on which a CCD9 is arranged is uniformly distributed around the CCD9 to form 2 LED lamps 8 with light dispersion angles of 120 degrees to 140 degrees, a light guide plate 6 capable of covering the LED lamps 8 and having a light transmittance of 80% to 85% is further arranged at the end portion of the housing 1 on which the CCD9 is arranged, a distance between 3 mm to 10mm between one surface of the light guide plate 6 close to the LED lamps 8 and a light emitting surface of the LED lamps 8 is made of PVC material, and a through hole 7 is arranged on the light guide plate 6 corresponding to an output end portion of the CCD9, the light rays irradiated by the LED lamp 8 are emitted to the CCD9 at the lesion of the human body to form an image.

Example 3

As shown in fig. 2-6, an endoscope with uniform image color comprises a housing 1, wherein an image line 2, a signal line 3, a CMOS4, and a power line 5 are disposed in the housing 1, one end of the image line 2, the signal line 3, and the power line 5 are all connected to an input end of the CMOS4 (as shown in fig. 4), a CCD9 is disposed in the center of one end of the housing 1, an output end of the CMOS4 is connected to a CCD9, an end of the housing 1 on which a CCD9 is disposed is uniformly distributed around the CCD9 with 4 LED lamps 8 (as shown in fig. 5) having light dispersion angles between 120 degrees and 140 degrees, a light guide sheet 6 capable of covering the LED lamp 8 and having a light transmittance between 80% and 85% is further disposed at the end of the housing 1 on which a CCD9 is disposed, a distance between 3 mm and 10mm from a surface of the light guide sheet 6 close to the LED lamp 8, a through hole 7 (as shown in fig. 5) is disposed on the light guide sheet 6 corresponding to an output end of the CCD9, the light guiding plate 6 is preferably made of PVC material, and is designed such that the light emitted from the LED lamp shows the effect shown in fig. 6, and the light in the area where the image is collected by the CCD9 is uniform.

Claims

1. An endoscope with uniform image color is characterized by comprising a shell (1), the shell (1) is internally provided with an image line (2), a signal line (3), a CMOS (4) and a power line (5), one end of the image line (2) and one end of the signal line (3) are both connected with the input end of the CMOS (4), the power line (5) supplies power for the CCD (9), the CMOS (4) and the LED lamp (8), the center of one end of the shell (1) is provided with a CCD (9), the output end of the CMOS (4) is connected with the CCD (9) through a signal, the end part of the shell (1) provided with the CCD (9) is provided with LED lamps (8) around the CCD (9), the end part of the shell (1) provided with the CCD (9) is also provided with a light guide sheet (6) which can cover the LED lamp (8), and a light transmitting device is arranged on the light guide sheet (6) corresponding to the output end of the CCD (9).

2. The endoscope of claim 1, wherein the light transmittance of the light guiding sheet (6) is between 80% and 85%, and the distance between the side of the light guiding sheet (6) close to the LED lamp (8) and the light emitting surface of the LED lamp (8) is between 3 mm and 10 mm.

3. An endoscope with uniform image color according to claim 1, characterized in that said light guide sheet (6) is made of PVC material.

4. The endoscope of claim 1, wherein the LED light (8) has a source angle of 120 to 140 degrees.

5. An endoscope with uniform image color according to claim 1, characterized in that the end of the casing (1) provided with the CCD (9) is provided with more than 2 LED lamps (8) around the CCD (9).

6. An endoscope with uniform image color according to claim 5, characterized in that the end of the casing (1) provided with the CCD (9) is provided with 4 LED lamps (8) uniformly distributed around the CCD (9).

7. An endoscope with uniform image color according to claim 1, wherein said light transmission means is a through hole (7).