CN104188617A - Novel three-dimensional endoscope - Google Patents
Novel three-dimensional endoscope Download PDFInfo
- Publication number
- CN104188617A CN104188617A CN201410488109.4A CN201410488109A CN104188617A CN 104188617 A CN104188617 A CN 104188617A CN 201410488109 A CN201410488109 A CN 201410488109A CN 104188617 A CN104188617 A CN 104188617A
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- light
- light paths
- image sensor
- eyepiece
- dimensional endoscope
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- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
Abstract
The invention provides a novel three-dimensional endoscope which comprises an objective lens and a rotary lens which are wrapped by inner tubes. Light passes an eyepiece and a protective piece behind the eyepiece after being transmitted from the rotary lens, two light paths are far away from each other, the distance between the two light paths is reduced after the two light paths pass a light condensing prism group, the two light paths continue to transmit and reach a color splitting prism through an interface objective lens, and the color splitting prism transmits the three primary colors of the light to the target surface of a 3cmos sensor to allow the light to have good imaging effect in an image sensor at the rear. The novel three-dimensional endoscope has the advantages that that the light paths are concentrated through the light condensing prism group to allow the images of the two light paths to be projected to the target surface of one image sensor, one image sensor is omitted under the premise that the size of the image sensor is unchanged as compared with the prior art, the overall size of the three-dimensional endoscope is reduced, the three-dimensional endoscope is suitable for minimally invasive surgeries and low in human body damage, and manufacturing cost is lowered.
Description
Technical field
The invention belongs to medical diagnosis stereoscopic imaging technology field, especially relates to a kind of new-type stereo endoscope.
Background technology
Stereo endoscope, as intervention means new in medical diagnosis applications, can, in use to inside of human body three-dimensional imaging, can provide sufferer information more accurately, the maloperation of avoiding doctor to perform the operation for doctor.But because endosome endoscope internal structure is very complicated, therefore overall structure can be huger, so in use can be very inconvenient, particularly in Minimally Invasive Surgery.Be exactly in addition in the manufacturing cost of stereo endoscope, the cost of imageing sensor is the highest, if therefore can reduce the use of a picture group image-position sensor, can either reduce the volume of stereo endoscope, can reduce again the manufacturing cost of stereo endoscope.
The Chinese patent " single-camera stereoscopic endoscope system " (publication number CN101843471A) of application in 2009 provides a kind of single camera stereoscopic endoscope system, the inside has been mentioned with the identical viewpoint of the application, be that stereo endoscope diameter is the smaller the better, this patent has proposed the concept of single video camera simultaneously.This patent adopts single light path, adds that two base angles are the prism of 22 °-30 °, thereby be partitioned into two pictures that have subtense angle before the camera lens of endoscope.The problem that this patent exists is, adopts single light path daylighting, and then with prism along separate routes.Adopt single video camera although also can realize, because the light flux ratio of one group of light path is lower, then after light splitting, luminous flux is lower, causes imaging picture darker, and light path there will be polarisation phenomenon after light splitting simultaneously, cause imaging picture unintelligible, cannot reach the demand of delicate procedure.
" thering is the eye examination apparatus of digital picture output " (publication number CN 103179896 A) of application in 2011, in this file, mention " described equipment comprises at least one of two images described in electronical record and is preferably the imageing sensor of two ", be therefore equivalent to also relate to the mode of using an imageing sensor.But be not given in structural concrete improvement project, only provide " imageing sensor can be designed to enough large so that it can record approximating two images simultaneously " such a imagination, simultaneously the inreal problem that solves reduction equipment overall volume of this imagination.In this file, also having mentioned a scheme and be imageing sensor also can proportion interleaving technique, but also need to be equipped with suitable lens element and alternately configure pixel line, required precision to imageing sensor is high, thereby relevant supporting setting can more complicatedly increase equipment volume simultaneously, improved manufacturing cost simultaneously.
Summary of the invention
The problem that the invention will solve is, a kind of new-type stereo endoscope is provided, and is especially applicable to solving the equipment volume existing in prior art bigger than normal, easily causes and accidentally injures and the problem such as manufacturing cost height to patient.
For solving the problems of the technologies described above, the technical scheme that the invention adopts is:
A kind of new-type stereo endoscope is provided; comprise that front end is by two groups of object lens tilting mirror parts of two inner tube parcels; light is from the screening glass after eyepiece and eyepiece tilting mirror spreads out of; then after optically focused prism group and interface object lens, arrive colour splitting prism; the final imageing sensor that arrives carries out imaging, and described imageing sensor has a target surface.
Wherein, described optically focused prism group comprises two prisms, and between two prisms, angle is 90 °, and between prism and described interface object lens, angle is 45 °.
Wherein, described imageing sensor is 3cmos sensor.
The beneficial effect of the invention is that screening glass, for separating front end sight glass part and rear end camera part, has played seal protection effect simultaneously.Colour splitting prism passes to the three primary colors of light path on the target surface in the middle of 3cmos sensor, make light in the back in imageing sensor imaging effect good.By optically focused prism group, light path is concentrated, the image of two groups of light paths can be projected on the target surface of an imageing sensor, compared with prior art, under the prerequisite that does not have to change in imageing sensor size, only adopt an imageing sensor, thereby the overall volume of having dwindled stereo endoscope is more suitable for Minimally Invasive Surgery and uses, little to injury of human, reduced manufacturing cost simultaneously.
Brief description of the drawings
Fig. 1 is the structural representation of the invention
In figure:
1, inner tube 2, eyepiece 3, screening glass
4, optically focused prism group 5, interface object lens 6, colour splitting prism
7, imageing sensor
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the invention is elaborated.
As shown in Figure 1, the invention adopts bifocal path structure, and light is the screening glass after eyepiece and eyepiece after the object lens in inner tube and tilting mirror spread out of.Two-way optical path distance is now far away, then after optically focused prism group after twice refraction, two-way light path spacing is dwindled, then continue to propagate, after interface object lens, arrive colour splitting prism, colour splitting prism is passing to the three primary colors of light path on the target surface in the middle of 3cmos sensor, make light in the back in imageing sensor imaging effect good.
The optically focused prism group here comprises two prisms, and between two prisms, angle is 90 °, and between prism and described interface object lens, angle is 45 °.Such setting is in order to make spacing minimum between two groups of light paths, to ensure that two groups of light paths project on the imageing sensor that target surface is as far as possible little.
Here preferred imageing sensor is 3cmos sensor, and those skilled in the art can select as required voluntarily certainly.
Above the invention embodiment is had been described in detail, but described content is only for the preferred embodiment of the invention, can not be considered to the practical range for limiting the invention.All equalization variation and improvement etc. of doing according to the invention application range, within all should still belonging to the patent covering scope of the invention.
Claims (3)
1. a new-type stereo endoscope, comprise that front end is by two groups of object lens tilting mirror parts of two inner tube parcels, it is characterized in that: light is from the screening glass after eyepiece and eyepiece tilting mirror spreads out of, then after optically focused prism group and interface object lens, arrive colour splitting prism, finally arrive imageing sensor and carry out imaging; Described imageing sensor has a target surface.
2. the new-type stereo endoscope of one according to claim 1, is characterized in that: described optically focused prism group comprises two prisms, and between two prisms, angle is 90 °, and between prism and described interface object lens, angle is 45 °.
3. the new-type stereo endoscope of one according to claim 2, is characterized in that: described imageing sensor is 3cmos sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410488109.4A CN104188617A (en) | 2014-09-22 | 2014-09-22 | Novel three-dimensional endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410488109.4A CN104188617A (en) | 2014-09-22 | 2014-09-22 | Novel three-dimensional endoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104188617A true CN104188617A (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410488109.4A Pending CN104188617A (en) | 2014-09-22 | 2014-09-22 | Novel three-dimensional endoscope |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110680264A (en) * | 2019-11-08 | 2020-01-14 | 中国科学院长春光学精密机械与物理研究所 | 3D optical endoscope system based on dual-optical-path design |
| CN112971687A (en) * | 2019-12-12 | 2021-06-18 | 北京林江科技有限公司 | Novel endoscope adapter capable of realizing 2D-to-3D imaging |
Citations (8)
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| CN1243263A (en) * | 1998-07-09 | 2000-02-02 | 松下电器产业株式会社 | Stereopicture obtaining device |
| US20030233024A1 (en) * | 2002-06-14 | 2003-12-18 | Fuji Photo Optical Co., Ltd. | Electronic endoscope for stereoscopic endoscope system |
| CN101518438A (en) * | 2009-03-27 | 2009-09-02 | 南开大学 | Binocular endoscope operation visual system |
| CN101843471A (en) * | 2009-03-26 | 2010-09-29 | 庞维克 | Single-camera stereoscopic endoscope system |
| CN102298216A (en) * | 2010-06-25 | 2011-12-28 | 韩松 | Stereoscopic lens for normal camera or video camera |
| CN102973238A (en) * | 2012-12-16 | 2013-03-20 | 天津大学 | 3D (three dimensional) lens for endoscope device |
| CN203458365U (en) * | 2013-06-21 | 2014-03-05 | 董国庆 | Stereo imaging device based on single-optical-path endoscope, light-splitting prism and double-path camera |
| CN103654698A (en) * | 2012-09-25 | 2014-03-26 | 天津博朗科技发展有限公司 | Stereoscopic endoscope system |
-
2014
- 2014-09-22 CN CN201410488109.4A patent/CN104188617A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1243263A (en) * | 1998-07-09 | 2000-02-02 | 松下电器产业株式会社 | Stereopicture obtaining device |
| US20030233024A1 (en) * | 2002-06-14 | 2003-12-18 | Fuji Photo Optical Co., Ltd. | Electronic endoscope for stereoscopic endoscope system |
| CN101843471A (en) * | 2009-03-26 | 2010-09-29 | 庞维克 | Single-camera stereoscopic endoscope system |
| CN101518438A (en) * | 2009-03-27 | 2009-09-02 | 南开大学 | Binocular endoscope operation visual system |
| CN102298216A (en) * | 2010-06-25 | 2011-12-28 | 韩松 | Stereoscopic lens for normal camera or video camera |
| CN103654698A (en) * | 2012-09-25 | 2014-03-26 | 天津博朗科技发展有限公司 | Stereoscopic endoscope system |
| CN102973238A (en) * | 2012-12-16 | 2013-03-20 | 天津大学 | 3D (three dimensional) lens for endoscope device |
| CN203458365U (en) * | 2013-06-21 | 2014-03-05 | 董国庆 | Stereo imaging device based on single-optical-path endoscope, light-splitting prism and double-path camera |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110680264A (en) * | 2019-11-08 | 2020-01-14 | 中国科学院长春光学精密机械与物理研究所 | 3D optical endoscope system based on dual-optical-path design |
| CN112971687A (en) * | 2019-12-12 | 2021-06-18 | 北京林江科技有限公司 | Novel endoscope adapter capable of realizing 2D-to-3D imaging |
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Application publication date: 20141210 |