CN110353614A - A kind of miniature endoscope head - Google Patents
A kind of miniature endoscope head Download PDFInfo
- Publication number
- CN110353614A CN110353614A CN201910491984.0A CN201910491984A CN110353614A CN 110353614 A CN110353614 A CN 110353614A CN 201910491984 A CN201910491984 A CN 201910491984A CN 110353614 A CN110353614 A CN 110353614A
- Authority
- CN
- China
- Prior art keywords
- lens
- endoscope head
- lens group
- head according
- miniature endoscope
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
- A61B1/041—Capsule endoscopes for imaging
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
- A61B1/0661—Endoscope light sources
- A61B1/0684—Endoscope light sources using light emitting diodes [LED]
Abstract
The invention discloses a kind of miniature endoscope heads, including sensing chip, lens group and mounting assembly for mounted lens group, the mounting assembly includes lens barrel and lens bracket, mounted lens group in the lens barrel, the sensing chip is set to lens group image side, and lens barrel is connected through a screw thread on the inside of the lens bracket.Substantial effect of the invention includes: that structure is simple, and assembly flexibly, conducive to the difference reduced between product individual, has ensured image quality, reduced production cost, while reliability is higher, structural strength is big, long service life.
Description
Technical field
The present invention relates to endoscopic arts, in particular to a kind of miniature endoscope head.
Background technique
Capsule endoscope is a kind of endoscope for being made into capsule shape, it is the Medical Instruments for checking human body intestinal canal,
Capsule endoscope can enter human body, for spying upon the health status at the positions such as human body stomach and esophagus, for helping doctor to disease
People's alimentary system illness diagnoses.And the capsule endoscope current needs for being used for bladder are larger, but lack suitable good
Product.
The utility model of publication number CN207529018U discloses a kind of microencapsulation endoscope head, including mirror tube and
Lens group, the maximum image height of lens group are 2.9mm, and the effective focal length of lens group is 1.04mm；Lens group from object side to image side according to
Secondary includes an eyeglass, two eyeglasses, aperture diaphragm, three eyeglasses, four eyeglasses and five eyeglasses, wherein an eyeglass, two eyeglasses, three mirrors
The focal length of piece, four eyeglasses and five eyeglasses is followed successively by -1.17mm, 1.70mm, 2.13mm, 1.86mm and -1.57mm, aperture light
The aperture of door screen is 2.30mm；By be arranged lens group maximum image height be 2.9mm, focal length 1.04mm.
The lens group of the prior art is thicker, influences overall volume, while the connection between each position is fixed, does not have spirit
Activity, and product individual between can having differences property, need according to circumstances to adjust in the fabrication process, the connection meeting being completely fixed
Image quality between Different Individual is caused to differ greatly, yields is lower.
Summary of the invention
For prior art construction complexity, be not easy to adjust, the low problem of yields, the present invention provides it is a kind of it is miniature in peep
Camera lens, image quality is high, and structure is simple, can be adjusted according to product individual difference between component, mainly be applied in capsule
Sight glass.
It is technical solution of the present invention below.
A kind of miniature endoscope head, including sensing chip, lens group and mounting assembly for mounted lens group, the peace
Arrangement includes lens barrel and lens bracket, mounted lens group in the lens barrel, and the sensing chip is set to lens group image side,
Lens barrel is connected through a screw thread on the inside of the lens bracket.Lens barrel and lens bracket can realize the tune in assembly by screw thread
Section, since endoscope head is more accurate, there may be certain errors between each component in production process, if directly by various companies
Fixation is connect, error bring imaging problem can not be just solved, causes yields low or production difficulty increases, therefore by lens barrel and mirror
Head bracket is connected through a screw thread, and can not only be realized in adjusting when assembled, and frictional force remains subsequent enough between screw thread
It is fixed, loosening will not be generated, is effectively reduced and manufactures difficulty and cost.
Preferably, the lens group includes the first lens and the second lens, between first lens and the second lens
It is provided with mylar film, the field angle of lens group is 125 degree to 135 degree, and optics overall length is less than 5mm.Since two panels lens are used only,
Keep the thickness of its lens group smaller, is suitable for various microencapsulations.
Preferably, the screw thread nominal diameter of the lens barrel and lens bracket is 3.5mm, screw pitch is 0.1 to 0.25mm.It should
Size can guarantee due frictional force between lens barrel and lens bracket.
Preferably, the lens in the lens group include plane mirror body and the working face that is set among plane mirror body.
Since the construction of endoscope is special, so that the effective working face of every piece of lens is only intermediate a part of entire plane mirror body, together
When due to installation when can have an impact to the imaging capability of lens surrounding, remain other plane mirror bodies as non-working surface
Part.
Preferably, the imaging size size of the sensing chip is 400*400*1.4um, Pixel Dimensions 1.4um*
1.4um, pixel resolution 400*400, image planes regional scope are 1.02 mm, and circle size is imaged and is more than or equal to 1.1mm, F number is
4.00, focal length 0.59mm, maximum incident angle are 27.3 °.For endoscope head to the more demanding of sensing chip, above-mentioned requirements are excellent
Scheme is selected, preferable effect can be generated.
Preferably, the sensing chip is OV9734.The commercially available channel of the sensing chip is convenient, technology maturation, reliability
It is higher, and meet above-mentioned requirements, it is a kind of preferred embodiment.
Preferably, the material that the lens use is E48R optical plastic.This kind of material technology maturation, optical property
Good, characteristic meets the requirement of lens group in this programme, is a kind of preferred embodiment.
If being set in the thick reinforcing rib preferably, being equipped with dry crude reinforcing rib and thin reinforcing rib on the outside of the lens bracket
There is mounting portion.Since lens bracket is smaller, to the more demanding of material structural strength, high-cost without using high structural strength
It under material context, needs to reinforce lens bracket, to improve service life, while thick reinforcing rib can accommodate mounting portion, be used for
Lens bracket and the isostructural installation of capsule.
Preferably, the mounting portion includes one of buckle, screw hole or stud.Above structure is for easier peace
Assembling structure is high as mounting portion property easy to use and compatibility.
Preferably, being equipped with several LED light in gap between the reinforcing rib.Due to the small volume of endoscope, LED
The mounting design of lamp is often a problem, and this programme is cooperated using reinforcing rib and LED light, that is, solves strength problem, and solve
LED light of having determined installation question.
Substantial effect of the invention includes: that structure is simple, assembly flexibly, conducive to reduce product individual between difference,
It has ensured image quality, has reduced production cost, while reliability is higher, structural strength is big, long service life.
Detailed description of the invention
Fig. 1 is the sectional view of the embodiment of the present invention；
Fig. 2 is the lens bracket schematic diagram of the embodiment of the present invention；
Fig. 3 is the index path of the embodiment of the present invention；
In figure: 1- lens bracket, 2- lens barrel, the first lens of 3-, 4- mylar film, the second lens of 5-, 6- sensing chip, 7- slightly reinforce
The thin reinforcing rib of muscle, 8-.
Specific embodiment
The technical program is further elaborated below in conjunction with Figure of description.
As shown in Figures 1 and 3 be a kind of miniature endoscope head, including sensing chip 6, lens group and be used for mounted lens group
Mounting assembly, mounting assembly includes lens barrel 2 and lens bracket 1, is connected through a screw thread between lens bracket 1 and lens barrel 2.Camera lens
Group includes the first lens 3 and the second lens 5, is equipped with mylar film 4 between two pieces of lens.
Wherein the screw thread nominal diameter of lens barrel 2 and lens bracket 1 is 3.5mm, screw pitch 0.25mm.Ensure that lens barrel 2 and
Due frictional force between lens bracket 1.
The present embodiment uses sensing chip OV9734, and imaging size size is 400*400*1.4um, and Pixel Dimensions are
1.4um*1.4um, pixel resolution 400*400, image planes regional scope are 1.02 mm, and circle size is imaged and is more than or equal to
1.1mm, F number are 4.00, focal length 0.59mm, and maximum incident angle is 27.3 °.
It is the schematic diagram of lens bracket 1 as shown in Figure 2, a plurality of thick reinforcing rib 7 is wherein equipped on the outside of lens bracket 1 and is carefully added
Strengthening tendons 8, thick reinforcing rib 7 is interior to be equipped with mounting portion.Since lens bracket 1 is smaller, to the more demanding of material structural strength, do not make
With under the high-cost material context of high structural strength, needing to reinforce lens bracket 1, to improve service life, while thick reinforcement
Muscle 7 can accommodate mounting portion, for lens bracket 1 and the isostructural installation of capsule.
The mounting portion of the present embodiment is screw hole.Screw hole is for easier mounting structure, as mounting portion property easy to use
And compatibility is high.
In addition several LED light are equipped in the gap between reinforcing rib.Due to the small volume of endoscope, the installation of LED light
Design is often a problem, and this programme is cooperated using reinforcing rib and LED light, that is, solves strength problem, and solve LED light
Installation question.
As shown in figure 3, two pieces of lens in the lens group of the present embodiment include plane mirror body and are set in plane mirror body
Between working face, the field angle of lens group is 125 degree, and optics overall length is slightly less than 5mm.The material that lens in lens group use is
E48R optical plastic.This kind of material technology maturation, good in optical property, characteristic meet the requirement of lens group in this programme, are one
Kind preferred embodiment.Since the construction of endoscope is special, so that the effective working face of every piece of lens is only in entire plane mirror body
Between a part therefore remained as non-working surface simultaneously because can have an impact when installation to the imaging capability of lens surrounding
Other plane mirror body portions.
It should be noted that the specific embodiment is only used for that technical solution is further described, it is not used in and limits the skill
The range of art scheme, any modifications, equivalent substitutions and improvements etc. based on this technical solution are regarded as in protection of the invention
In range.
Claims (10)
1. a kind of miniature endoscope head, including sensing chip, lens group and mounting assembly for mounted lens group, feature exists
It include lens barrel and lens bracket in, the mounting assembly, mounted lens group in the lens barrel, the sensing chip is set to lens
Group image side, lens barrel are connected through a screw thread on the inside of the lens bracket.
2. a kind of miniature endoscope head according to claim 1, which is characterized in that the lens group include the first lens and
Second lens are provided with mylar film between first lens and the second lens, the field angle of lens group is 125 degree to 135 degree,
Optics overall length is less than 5mm.
3. a kind of miniature endoscope head according to claim 1, which is characterized in that the screw thread of the lens barrel and lens bracket
Nominal diameter is 3.5mm, and screw pitch is 0.1 to 0.25mm.
4. a kind of miniature endoscope head according to claim 2, which is characterized in that the lens in the lens group include flat
Face mirror body and the working face being set among plane mirror body.
5. a kind of miniature endoscope head according to claim 1 or 2, which is characterized in that the imaging ruler of the sensing chip
Very little size is 400*400*1.4um, Pixel Dimensions 1.4um*1.4um, pixel resolution 400*400, image planes regional scope
For 1.02 mm, circle size is imaged and is more than or equal to 1.1mm, F number is 4.00, and focal length 0.59mm, maximum incident angle is 27.3 °.
6. a kind of miniature endoscope head according to claim 5, which is characterized in that the sensing chip is OV9734.
7. a kind of miniature endoscope head according to claim 2, which is characterized in that the material that the lens use is E48R
Optical plastic.
8. a kind of miniature endoscope head according to claim 1 or 4, which is characterized in that be equipped on the outside of the lens bracket
If dry crude reinforcing rib and thin reinforcing rib, mounting portion is equipped in the thick reinforcing rib.
9. a kind of miniature endoscope head according to claim 8, which is characterized in that the mounting portion includes buckle, screw hole
Or one of stud.
10. a kind of miniature endoscope head according to claim 8, which is characterized in that in the gap between the reinforcing rib
Equipped with several LED light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910491984.0A CN110353614A (en) | 2019-06-06 | 2019-06-06 | A kind of miniature endoscope head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910491984.0A CN110353614A (en) | 2019-06-06 | 2019-06-06 | A kind of miniature endoscope head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110353614A true CN110353614A (en) | 2019-10-22 |
Family
ID=68216787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910491984.0A Pending CN110353614A (en) | 2019-06-06 | 2019-06-06 | A kind of miniature endoscope head |
Country Status (1)
| Country | Link |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201609349U (en) * | 2010-01-26 | 2010-10-20 | 凤凰光学(上海)有限公司 | Ultra-micro water-proof medical endoscope lens mechanism |
| US20130296650A1 (en) * | 2009-06-24 | 2013-11-07 | Given Imaging Ltd. | In vivo sensing device with a flexible circuit board |
| CN205234496U (en) * | 2015-11-02 | 2016-05-18 | 杭州华冲科技有限公司 | Capsule type endoscope system workstation |
| CN206138090U (en) * | 2016-07-12 | 2017-05-03 | 宋其亮 | Capsule type gastroscope of giving medicine to poor free of charge for gastroenterology |
| CN207024030U (en) * | 2017-01-13 | 2018-02-23 | 杨志超 | A kind of miniature defect-detecting equipment of digestive endoscope |
| CN108065903A (en) * | 2017-12-28 | 2018-05-25 | 青岛大学附属医院 | A kind of wireless vibration capsule system for adjusting gastrointestinal motivity |
| US10121820B1 (en) * | 2017-07-20 | 2018-11-06 | Omnivision Technologies, Inc. | Protective caps for small image sensor masking and mounting process |
-
2019
- 2019-06-06 CN CN201910491984.0A patent/CN110353614A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130296650A1 (en) * | 2009-06-24 | 2013-11-07 | Given Imaging Ltd. | In vivo sensing device with a flexible circuit board |
| CN201609349U (en) * | 2010-01-26 | 2010-10-20 | 凤凰光学(上海)有限公司 | Ultra-micro water-proof medical endoscope lens mechanism |
| CN205234496U (en) * | 2015-11-02 | 2016-05-18 | 杭州华冲科技有限公司 | Capsule type endoscope system workstation |
| CN206138090U (en) * | 2016-07-12 | 2017-05-03 | 宋其亮 | Capsule type gastroscope of giving medicine to poor free of charge for gastroenterology |
| CN207024030U (en) * | 2017-01-13 | 2018-02-23 | 杨志超 | A kind of miniature defect-detecting equipment of digestive endoscope |
| US10121820B1 (en) * | 2017-07-20 | 2018-11-06 | Omnivision Technologies, Inc. | Protective caps for small image sensor masking and mounting process |
| CN108065903A (en) * | 2017-12-28 | 2018-05-25 | 青岛大学附属医院 | A kind of wireless vibration capsule system for adjusting gastrointestinal motivity |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200914 Address after: 310000 No.109 Hongxing Road, Qiaonan block, Xiaoshan Economic and Technological Development Zone, Hangzhou, Zhejiang Province Applicant after: Hangzhou Huachong Diagnostic Equipment Co.,Ltd. Address before: 310000 No.16, Tonghui North Road, economic and Technological Development Zone, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant before: HITRON TECHNOLOGIES Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191022 |