CN110058399A - The imaging optical system of back yard industry endoscope - Google Patents
The imaging optical system of back yard industry endoscope Download PDFInfo
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- CN110058399A CN110058399A CN201910220212.3A CN201910220212A CN110058399A CN 110058399 A CN110058399 A CN 110058399A CN 201910220212 A CN201910220212 A CN 201910220212A CN 110058399 A CN110058399 A CN 110058399A
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- lens
- propagation
- prism
- microscope group
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/2407—Optical details
Abstract
The present invention relates to short distance imaging system fields, to propose a kind of imaging optical system for industrial endoscope, the present invention, the imaging optical system of back yard industry endoscope, it successively include objective lens along the light direction of propagation, tilting mirror group, diaphragm, graticle, image planes amplify microscope group, protect glass, the objective lens include four lens, one piece of prism, it is arranged successively along the light direction of propagation as lens 1, prism, lens 2, lens 3 and lens 4, the tilting mirror group includes six-element lens, it is arranged successively along the light direction of propagation as lens 5, lens 6, lens 7, lens 8, lens 9, lens 10, the diaphragm is located in tilting mirror rent between lens 7 and lens 8, the amplification microscope group includes 4 lens, it is arranged successively along the light direction of propagation as lens 11, lens 12, lens 13, lens 14.Present invention is mainly applied to short distance imaging situations.
Description
Technical field
The present invention relates to short distance imaging system fields, and in particular to a kind of image optics system of back yard industry endoscope
System.
Background technique
Industrial endoscope can be used for the inspection and sight in the place that high temperature, toxic, nuclear radiation and human eye can not observe directly
It examines, is mainly used for automobile, aero-engine, pipeline, machine components etc., can be not required to dismantle or destroy assembling and equipment stopping fortune
Non-destructive testing is realized in the case where row, and can also be used in ventilation shaft, air-conditioning duct, water pipe, industrial pipeline internal weld seams, corruption
Situations such as erosion, blocking, difference, foreign matter video detection.Be widely used in aviation, automobile, ship, electrical, chemistry, electric power, coal gas,
Each department of the modern times such as atomic energy, civil construction core industry.Industrial endoscope can also be with camera, video camera or electrometer
Calculation machine lotus root connects, composition photograph, camera shooting and image processing system, to carry out the monitoring of visual field target, record, storage and image point
Analysis.
General endoscope field range under industrial operations environment is limited, detects to the lesser pipeline of bore, part etc.
It is more difficult.
Summary of the invention
In order to overcome the deficiencies of the prior art, the present invention is directed to propose a kind of imaging optical system for industrial endoscope.
For this reason, the technical scheme adopted by the present invention is that the imaging optical system of back yard industry endoscope, is successively wrapped along the light direction of propagation
Objective lens, tilting mirror group, diaphragm, graticle, image planes amplification microscope group, protection glass are included, the objective lens include four one piece of lens
Prism is arranged successively along the light direction of propagation as lens 1, prism, lens 2, lens 3 and lens 4, and the tilting mirror group includes six
Lens are arranged successively along the light direction of propagation as lens 5, lens 6, lens 7, lens 8, lens 9, lens 10, the diaphragm position
In tilting mirror rent between lens 7 and lens 8, the amplification microscope group includes 4 lens, is arranged successively along the light direction of propagation
For lens 11, lens 12, lens 13, lens 14.
The objective lens include four lens, one piece of prism, along the light direction of propagation be arranged successively for lens 1, prism, thoroughly
The glued microscope group that the glued microscope group that mirror 2, lens 3 and lens 4, prism and lens 2 form, lens 3 and lens 4 form；
In the objective lens, prism propagates light by vertical direction steering horizontal direction, and object lens is made to generate 90 ° of visual direction
Angle；
The tilting mirror group includes six-element lens, is arranged successively along the light direction of propagation as lens 5, lens 6, lens 7, lens
8, lens 9, lens 10, lens 5, lens 6, lens 7 form glued microscope group, and 8. lens 9 of lens, lens 10 form glued microscope group,
The diaphragm is located in tilting mirror rent between lens 7 and lens 8, and two groups of gluing microscope groups are full symmetric about diaphragm.
Image planes amplification microscope group includes 4 lens, is arranged successively along the light direction of propagation as lens 11, lens 12, thoroughly
Mirror 13, lens 14.The glued microscope group that lens 11 and lens 12 form.
The features of the present invention and beneficial effect are:
Present system can well adapt to the detection of industrial operations environment lower small mouth diameter pipeline, part, introduce 90 ° of views
To angle, the interior wall construction of pipeline, part can be clearly observed.
Detailed description of the invention:
Fig. 1 is optical system light path structure chart of the present invention.
Fig. 2 is objective lens structural schematic diagram of the invention.
Fig. 3 is tilting mirror group structural schematic diagram of the invention.
Fig. 4 is that image planes of the invention amplify microscope group schematic diagram.
Figure label explanation: (1) objective lens, (2) tilting mirror group, (3) diaphragm, (4) graticle, (5) image planes amplify microscope group,
(6) glass is protected, I is image planes, and 1-14 is lens.
Specific embodiment
To realize above-mentioned technical purpose and the technique effect, the invention is realized by the following technical scheme:
A kind of imaging optical system of back yard industry endoscope, along the light direction of propagation successively include objective lens, tilting mirror group,
Diaphragm, graticle, image planes amplification microscope group, protection glass, the objective lens include four lens, one piece of prism, along light propagation side
To being arranged successively as lens 1, prism, lens 2, lens 3 and lens 4, the tilting mirror group includes six-element lens, along light propagation side
To being arranged successively as lens 5, lens 6, lens 7, lens 8, lens 9, lens 10, the diaphragm be located at the tilting mirror rent in lens
Between 7 and lens 8, the amplification microscope group include 4 lens, along the light direction of propagation be arranged successively for lens 11, lens 12, thoroughly
Mirror 13, lens 14.
The objective lens include four lens, one piece of prism, along the light direction of propagation be arranged successively for lens 1, prism, thoroughly
The glued microscope group that the glued microscope group that mirror 2, lens 3 and lens 4, prism and lens 2 form, lens 3 and lens 4 form.
In the objective lens, prism propagates light by vertical direction steering horizontal direction, and object lens is made to generate 90 ° of visual direction
Angle.
The tilting mirror group includes six-element lens, is arranged successively along the light direction of propagation as lens 5, lens 6, lens 7, lens
8, lens 9, lens 10, lens 5, lens 6, lens 7 form glued microscope group, and 8. lens 9 of lens, lens 10 form glued microscope group,
The diaphragm is located in tilting mirror rent between lens 7 and lens 8, and two groups of gluing microscope groups are full symmetric about diaphragm.
Image planes amplification microscope group includes 4 lens, is arranged successively along the light direction of propagation as lens 11, lens 12, thoroughly
Mirror 13, lens 14.The glued microscope group that lens 11 and lens 12 form.
It is below with reference to the accompanying drawings and in conjunction with the embodiments, next that the present invention will be described in detail.
As shown in Figure 1, a kind of imaging optical system of back yard industry endoscope, successively includes object lens along the light direction of propagation
Group (1), tilting mirror group (2), diaphragm (3), graticle (4), image planes amplification microscope group (5), protection glass (6), the objective lens (1) exist
Image planes I are object with image planes I at real image, the tilting mirror group (2), at secondary real image, the diaphragm (3) on the graticle (4)
Positioned at the tilting mirror group (2) center, image planes amplification microscope group (5) with the graticle (4) for object, will be secondary on graticle
Image planes amplify, and the protection glass (6) is located at total system rearmost end, for protecting overall optical system.In the industry
Sight glass entirety bore≤3mm.
As shown in Fig. 2, the objective lens include four lens, one piece of prism, it is arranged successively along the light direction of propagation as lens
1, the glued mirror that the glued microscope group that prism, lens 2, lens 3 and lens 4, prism and lens 2 form, lens 3 and lens 4 form
Group.The prism provides 90 ° of viewing directional angle for endoscope.
As shown in figure 3, the tilting mirror group includes six-element lens, along the light direction of propagation be arranged successively for lens 5, lens 6,
Lens 7, lens 8, lens 9, lens 10, the lens 5, lens 6, lens 7 form glued microscope group, 8. lens 9 of lens, thoroughly
Mirror 10 forms glued microscope group, and the diaphragm is located in tilting mirror rent between lens 7 and lens 8, and two groups of gluing microscope groups are about light
Door screen is full symmetric.Tilting mirror group described in the tilting mirror group extends the operating distance of endoscope in the case where not influencing image quality.
As shown in figure 4, image planes amplification microscope group includes 4 lens, along the light direction of propagation be arranged successively for lens 11,
Lens 12, lens 13, lens 14.The glued microscope group that the lens 11 are formed with lens 12.The objective lens and tilting mirror group are imaged
Afterwards, image planes size is not matched that with subsequent CCD reception, it is therefore desirable to which image planes amplification microscope group amplifies.
The objective lens include four lens, one piece of prism, field angle X: ± 22.5 °；Y: ± 30 °, prism in objective lens
Act optical path of transferring, endoscopic system is made to have 90 ° of viewing directional angle.Objective lens are to cooperate with subsequent microscope group, remote using image space
Heart optical path, object lens are in image planes I at real image face, image planes size 1.5*2mm.The tilting mirror group image planes I carry out inverted image, and peep in extension
The real image of image planes is imaged on graticle by mirror entire length, tilting mirror group.Graticle is imaged in the image planes amplification microscope group, will
The image planes of 1.5*2mm size are enlarged into 3.6*4.8mm, to cooperate subsequent CCD to receive.
Using the accessible resolution ratio of structure of the invention are as follows: object distance be 1.5mm when, image space resolution ratio be 23 lines it is right/mm；Object
When away from for 2mm, image space resolution ratio be 32 lines it is right/mm；Object distance be 2.5mm when, image space resolution ratio be 21 lines it is right/mm.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (3)
1. a kind of imaging optical system of back yard industry endoscope, characterized in that along the light direction of propagation successively include objective lens,
Tilting mirror group, diaphragm, graticle, image planes amplification microscope group, protection glass, the objective lens include four lens, one piece of prism, along light
The line direction of propagation is arranged successively as lens 1, prism, lens 2, lens 3 and lens 4；The tilting mirror group includes six-element lens, along light
The line direction of propagation is arranged successively as lens 5, lens 6, lens 7, lens 8, lens 9, lens 10；The diaphragm is located at the tilting mirror
In rent between lens 7 and lens 8；The amplification microscope group include 4 lens, along the light direction of propagation be arranged successively for lens 11,
Lens 12, lens 13, lens 14.
2. the imaging optical system of back yard industry endoscope as described in claim 1, characterized in that the objective lens include four
One piece of prism of piece lens is arranged successively along the light direction of propagation as lens 1, prism, lens 2, lens 3 and lens 4, prism and thoroughly
The glued microscope group that the glued microscope group that mirror 2 forms, lens 3 and lens 4 form；
In the objective lens, prism propagates light by vertical direction steering horizontal direction, and object lens is made to generate 90 ° of viewing directional angle；
The tilting mirror group includes six-element lens, along the light direction of propagation be arranged successively for lens 5, lens 6, lens 7, lens 8, thoroughly
Mirror 9, lens 10, lens 5, lens 6, lens 7 form glued microscope group, and 8 lens 9 of lens, lens 10 form glued microscope group, the light
Door screen is located in tilting mirror rent between lens 7 and lens 8, and two groups of gluing microscope groups are full symmetric about diaphragm.
3. the imaging optical system of back yard industry endoscope as described in claim 1, characterized in that the image planes amplify microscope group
It including 4 lens, is arranged successively along the light direction of propagation as lens 11, lens 12, lens 13, lens 14, lens 11 and lens
The glued microscope group of 12 compositions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910220212.3A CN110058399A (en) | 2019-03-19 | 2019-03-19 | The imaging optical system of back yard industry endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910220212.3A CN110058399A (en) | 2019-03-19 | 2019-03-19 | The imaging optical system of back yard industry endoscope |
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| Publication Number | Publication Date |
|---|---|
| CN110058399A true CN110058399A (en) | 2019-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910220212.3A Pending CN110058399A (en) | 2019-03-19 | 2019-03-19 | The imaging optical system of back yard industry endoscope |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112612134A (en) * | 2020-12-17 | 2021-04-06 | 福州宏旭科技有限公司 | 90-degree steering endoscope |
| WO2022048081A1 (en) * | 2020-09-04 | 2022-03-10 | 鹰利视医疗科技有限公司 | 4k ultra-high-definition laparoscopic relay lens structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6002516A (en) * | 1998-06-02 | 1999-12-14 | Taiwan Semiconductor Manufacturing Company, Ltd. | Vertical cassette elevator and load lock viewer |
| CN203422525U (en) * | 2013-09-02 | 2014-02-05 | 杭州好克光电仪器有限公司 | Omnibearing rotatable focusing industrial mirror |
| CN105242393A (en) * | 2015-11-09 | 2016-01-13 | 天津大学 | Stereoscopic endoscope electronic imaging optical system |
| CN205210410U (en) * | 2015-09-08 | 2016-05-04 | 上海熠达光电科技有限公司 | Head is changed to endoscope |
-
2019
- 2019-03-19 CN CN201910220212.3A patent/CN110058399A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6002516A (en) * | 1998-06-02 | 1999-12-14 | Taiwan Semiconductor Manufacturing Company, Ltd. | Vertical cassette elevator and load lock viewer |
| CN203422525U (en) * | 2013-09-02 | 2014-02-05 | 杭州好克光电仪器有限公司 | Omnibearing rotatable focusing industrial mirror |
| CN205210410U (en) * | 2015-09-08 | 2016-05-04 | 上海熠达光电科技有限公司 | Head is changed to endoscope |
| CN105242393A (en) * | 2015-11-09 | 2016-01-13 | 天津大学 | Stereoscopic endoscope electronic imaging optical system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022048081A1 (en) * | 2020-09-04 | 2022-03-10 | 鹰利视医疗科技有限公司 | 4k ultra-high-definition laparoscopic relay lens structure |
| CN112612134A (en) * | 2020-12-17 | 2021-04-06 | 福州宏旭科技有限公司 | 90-degree steering endoscope |
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Application publication date: 20190726 |