CN203705720U

CN203705720U - CMOS camera module for endoscopes

Info

Publication number: CN203705720U
Application number: CN201420058686.5U
Authority: CN
Inventors: 张�杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-02-07
Filing date: 2014-02-07
Publication date: 2014-07-09
Anticipated expiration: 2024-02-07

Abstract

The utility model discloses a CMOS camera module for endoscopes, comprising an endoscope inserting tube. The front-most end of the endoscope inserting tube is provided with an endoscope front end face, and the front end face is the circular cross-section of the inserting tube. A CMOS photosensitive element is arranged on the right side inside the inserting tube, and the CMOS photosensitive element rotates by 90 degrees to be perpendicular to the endoscope front end face. A zoom lens cone is vertically arranged on the front end face. A prism is arranged on the upper side inside the zoom lens cone. The bevel edge on one side of the prism contacts the CMOS photosensitive element. The prism refracts incident light by 90 degrees to enable the light to be perpendicular to the CMOS photosensitive element. The circular cross-sections of the zoom lens cone and the endoscope front end face are respectively equipped with a wide-angle lens so as to enable an imaging lens group to be arranged from the prism to the endoscope front end face. Optical design of the camera module is completed and the effective use area occupied by the photosensitive element is reduced, the problem of applying the CMOS photosensitive element to endoscopes is successfully resolved, and the CMOS camera module can completely replace the CCD photosensitive element to be applied in endoscopes.

Description

A kind of CMOS CCD camera assembly for endoscope

Technical field

The utility model relates to endoscope, relates in particular to a kind of for endoscope CMOS CCD camera assembly.

Background technology

Sensor devices mainly divides two kinds: one is that widely used Charge Couple Device is CCD sensitive component (electric charge closes by lotus root), and another kind is that Complementary Metal Oxide Semiconductor is the complementary matal-oxide semiconductor of CMOS() device.What the medical endoscope of application adopted mostly at present is that CCD sensitive component is charge coupled cell (Charge-coupled Device).The advantage of CCD sensor devices is that volume is little, image quality is high, but due to production control circuit technology complexity, higher to light source requirements, finished product rate is low, so expensive.And the advantage of CMOS sensitive component is that control circuit is relatively simple, not high to light source requirements, large-scale production yield rate is high, power consumption is low, cheap; Shortcoming is because the restriction of manufacturing process causes finished-product volume too large, can not be used for endoscope and use as sensitive component.

In prior art, publication number: 201572074U, title: the abortion operation endoscope of whole course visible, this utility model discloses a kind of abortion operation endoscope of whole course visible, comprise computing machine (14), CCD camera (15) and endoscope assembly (16), the sensor devices of CCD camera (15) is relative with the eyepiece (8) of endoscope assembly (16), the signal output part of CCD camera (15) is connected with the signal input part of computing machine (14) by data line (17), the light source that it is characterized in that described endoscope assembly (16) is by lighting source and can produce the infrared imaging light source (10) that wavelength is greater than 700 nanometers and form.This utility model is simple in structure, is easy to realize, and is conducive to improve operation efficiency and success ratio, improves the security of operation, has solved the unclear difficult problem in the visual field in hemorrhage operation.But what this utility model related to is the endoscope that uses CCD camera (15) and endoscope assembly.

Therefore, how will be convenient to large-scale production, fast, the lower-cost CMOS sensitive component replacement of speed CCD components and parts are applied to endoscope becomes problem demanding prompt solution.

Utility model content

For above the deficiencies in the prior art, the utility model provides a kind of CMOS CCD camera assembly for endoscope, by using for reference the optical principle of periscope, CMOS CCD camera assembly is arranged to imaging lens group, reduce again the shared effective usable floor area of sensitive component by having completed the optical design of camera module, successfully solved CMOS photo-sensitive cell and be applied to the problem of endoscope.

To achieve these goals, a kind of technical scheme of taking for the CMOS CCD camera assembly of endoscope described in the utility model is: assembly described in the utility model, it comprises insert tube of endoscope, at described insert tube of endoscope, the first end face of endoscope is set foremost, the circular section that the first end face of described endoscope is described Inserting Tube, in described Inserting Tube inner right side, CMOS photo-sensitive cell is set, described CMOS photo-sensitive cell half-twist is perpendicular to the first end face of endoscope, on the first end face of described endoscope, be vertically installed with Zoom lens barrel, described Zoom lens barrel upper inside is provided with a prism, one skew back limit of described prism and described CMOS photo-sensitive cell are removed, described prism makes it perpendicular to CMOS photo-sensitive cell 90 ° of incident light refractions, the circular section of the first end face of described Zoom lens barrel and endoscope arranges wide-angle lens, make described prism to the first end of endoscope be arranged to picture lens combination.

Further, the first end face of described endoscope is effective usable floor area of endoscope.

Can be found out by technique scheme, the beneficial effect of a kind of CMOS CCD camera assembly for endoscope described in the utility model be simple in structure, be convenient to produce, cost is lower, effect is remarkable.The utility model assembly makes described prism to the first end of endoscope be arranged to picture lens combination, the optical design that has completed camera module has reduced again the shared effective usable floor area of sensitive component, successfully solve the difficult problem that CMOS sensitive component is applied to endoscope, can substitute the application of CCD sensitive component in endoscope completely.Because CMOS sensitive component is lower than the production cost of CCD sensitive component, be convenient to large-scale production.

Accompanying drawing explanation

Fig. 1 is the structural representation of a kind of CMOS CCD camera assembly for endoscope described in the utility model;

Shown in figure: 1-insert tube of endoscope, the first end face of 2-endoscope, 3-CMOS photo-sensitive cell, 4-prism, 5-Zoom lens barrel, 6-wide-angle lens, 7-optical axis.

Embodiment

For making object, technical scheme and the advantage of the utility model embodiment clearer, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.

Below in conjunction with Fig. 1, the utility model embodiment is described.

As shown in Figure 1, a kind of CMOS CCD camera assembly for endoscope described in the utility model, it comprises insert tube of endoscope 1, at described insert tube of endoscope 1, the first end face 2 of endoscope is set foremost, the first end face 2 of described endoscope is the circular section of described Inserting Tube 1, and the first end face 2 of described endoscope is effective usable floor areas of endoscope.In the inner side of described Inserting Tube 1, CMOS photo-sensitive cell 3 is set, described CMOS photo-sensitive cell 3 half-twists are perpendicular to the first end face 2 of endoscope, on the first end face 2 of described endoscope, be vertically installed with Zoom lens barrel 5, in the middle of described Zoom lens barrel 5 and CMOS photo-sensitive cell 3, prism 4 is set, described prism 4 makes it perpendicular to CMOS photo-sensitive cell 3 incident light refraction 90 ° (shown in optical axises 7), described Zoom lens barrel 5 arranges wide-angle lens 6 with the circular section of the first end face 2 of endoscope, make described prism 4 to the first end 2 of endoscope that imaging lens group is set, the optical design that completes described camera module by above-mentioned setting has reduced again the shared effective usable floor area of sensitive component, solve the difficult problem that CMOS photo-sensitive cell is applied to endoscope, can substitute the application of CCD sensitive component in endoscope completely.

The above; it is only preferably embodiment of the utility model; but protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.

Claims

1. for a CMOS CCD camera assembly for endoscope, it is characterized in that: comprise insert tube of endoscope, at described insert tube of endoscope, the first end face of endoscope is set foremost, the circular section that the first end face of described endoscope is described Inserting Tube; In described Inserting Tube inner right side, CMOS photo-sensitive cell is set, described CMOS photo-sensitive cell half-twist is perpendicular to the first end face of endoscope; On the first end face of described endoscope, be vertically installed with Zoom lens barrel, described Zoom lens barrel upper inside is provided with a prism, and described prism, by 90 ° of incident light refractions, makes it perpendicular to CMOS photo-sensitive cell; The circular section of the first end face of described Zoom lens barrel and endoscope arranges wide-angle lens, makes described prism to the first end of endoscope be arranged to picture lens combination.

2. assembly according to claim 1, is characterized in that: a skew back limit of described prism contacts with described CMOS photo-sensitive cell.

3. assembly according to claim 1, is characterized in that: the first end face of described endoscope is effective usable floor area of endoscope.