CN203745710U - Near-field machine vision lens - Google Patents
Near-field machine vision lens Download PDFInfo
- Publication number
- CN203745710U CN203745710U CN201420100237.2U CN201420100237U CN203745710U CN 203745710 U CN203745710 U CN 203745710U CN 201420100237 U CN201420100237 U CN 201420100237U CN 203745710 U CN203745710 U CN 203745710U
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- China
- Prior art keywords
- lens
- negative selenodont
- spacer
- gummed group
- biconvex
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- 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.)
- Expired - Lifetime
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- 125000006850 spacer group Chemical group 0.000 claims description 25
- 230000000007 visual effect Effects 0.000 claims description 9
- 210000004907 gland Anatomy 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000003384 imaging method Methods 0.000 abstract description 8
- 238000004026 adhesive bonding Methods 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Structure And Mechanism Of Cameras (AREA)
Abstract
The utility model relates to a near-field machine vision lens which comprises a lens cone. Along an incident direction of light, the lens cone is internally provided with sequentially: a one-convex one-flat lens A, a gluing group formed by firm connection between a double-convex lens B and a double-concave lens C, a negative crescent type lens D, and a negative crescent type lens E, and a double-convex F. The near-field machine vision lens is compact in structure, can achieve the close clear imaging; and through manual focusing, the close clear imaging within the 100 to 500 mm range is achieved.
Description
Technical field
The utility model relates to a kind of near field machine visual lens, belongs to the optical pick-up apparatus field of video technique.
Background technology
Existingly can realize the closely camera lens of blur-free imaging, the most structure of structure is comparatively complicated, and dismounting is inconvenient, manufacture and maintenance cost high.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of compact conformation, easy accessibility, and can shooting at close range and the near field machine visual lens of blur-free imaging.
The utility model adopts following scheme to realize: a kind of near field machine visual lens, comprise lens barrel, along light incident direction, be provided with successively the gummed group that a protruding flat pattern lens A, biconvex lens B and biconcave lens C connect airtight in described lens barrel, negative selenodont lens D, bear selenodont lens E and biconvex lens F.
Further, airspace between a described protruding flat pattern lens A and described gummed group is 0.1mm, airspace between described gummed group and described negative selenodont lens D is 1.8mm, airspace between described negative selenodont lens D and negative selenodont lens E is 0.15mm, and the clearance between described negative selenodont lens E and biconvex lens F is 0.5mm.
Further, described lens barrel peripheral part is provided with external thread, the front end of lens barrel is threaded connection the gland that blocks a described protruding flat pattern lens A edge, between a described protruding flat pattern lens A and described gummed group, be folded with the spacer ring A for locating, between described gummed group and described negative selenodont lens D, by spacer B, locate, biconcave lens C in described gummed group is positioned at described spacer B, described negative selenodont lens D and described negative selenodont lens E are located by spacer ring C, negative selenodont lens D is embedded in spacer ring C, described spacer ring C and negative selenodont lens E are positioned at spacer D, between described negative selenodont lens E and biconvex lens F, by spacer D, located, the inner rear end of described lens barrel is provided with for locating the bulge loop of biconvex lens F.
Compared with prior art, the utlity model has following beneficial effect: this near field machine visual lens can be realized closely blur-free imaging, passes through manual focusing, realize in 100 ~ 500mm variation range closely blur-free imaging, and compact conformation, easy accessibility, low cost of manufacture.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment organigram;
Number in the figure explanation: the negative selenodont lens E 13-biconvex lens F of the negative selenodont lens D 10-spacer ring C 11-spacer D 12-of the protruding flat pattern lens A 3-spacer ring A 4-biconvex lens B 5-biconcave lens C 6-gummed group 7-spacer B 8-lens barrel 9-of 1-gland 2-mono-.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below will, by specific embodiment and relevant drawings, the utility model be described in further detail.
As shown in Figure 1, a kind of near field machine visual lens, comprise lens barrel 8, described lens barrel 8 is interior is provided with a protruding flat pattern lens A (2), biconvex lens B (4) and the gummed group 6 that biconcave lens C (5) connects airtight successively along light incident direction, bears selenodont lens D (9), negative selenodont lens E (12) and biconvex lens F (13).
In the present embodiment, airspace between a described protruding flat pattern lens A (2) and described gummed group 6 is 0.1mm, airspace between described gummed group 6 and described negative selenodont lens D (9) is 1.8mm, airspace between described negative selenodont lens D (9) and negative selenodont lens E (12) is 0.15mm, and the clearance between described negative selenodont lens E (12) and biconvex lens F (13) is 0.5mm.
In the present embodiment, the optical system consisting of above-mentioned lens set has reached following optical index:
(1) focal length: f '=16.5mm;
(2) relative aperture D/f '=1/2.2;
(3) field angle 2 ω: 33.2 °;
(4) relatively distort: q<2.5%;
(5) focusing range: 100 ~ 500mm;
(6) focusing amount: 6.17 ~ 8.72mm.
When object distance is 100mm, (a protruding flat pattern lens A summit is 100mm to object distance), by camera lens M12x0.5 external thread alignment cameras interface, clockwise direction is rotated into camera until biconvex lens F summit can become sharply defined image to camera imaging identity distance when for 6.17mm; When object distance is 500mm,, by camera lens M12x0.5 external thread alignment cameras interface, biconvex lens F summit can become sharply defined image to camera imaging identity distance when for 8.72mm.
In the present embodiment, described lens barrel 8 peripheral parts are provided with M12x0.5 external thread, and lens barrel docks with camera interface by external thread.The front end of lens barrel 8 is threaded connection the gland 1 that blocks described protruding flat pattern lens A (2) edge, between a described protruding flat pattern lens A (2) and described gummed group 6, be folded with the spacer ring A (3) for locating, between described gummed group 6 and described negative selenodont lens D (9), by spacer B (7), locate, biconcave lens C (5) in described gummed group 6 is positioned at described spacer B (7), and light is passed by the mesopore in the middle of spacer B7.
Described negative selenodont lens D (9) and described negative selenodont lens E (12) are located by spacer ring C (10), negative selenodont lens D (9) is embedded in spacer ring C (10), described spacer ring C (10) and negative selenodont lens E (12) are positioned at spacer D (11), between described negative selenodont lens E (12) and biconvex lens F (13), by spacer D (11), located, the inner rear end of described lens barrel 8 is provided with for locating the bulge loop of biconvex lens F (13).
Above-listed preferred embodiment; the purpose of this utility model, technical scheme and advantage are further described; institute is understood that; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. a near field machine visual lens, comprise lens barrel, it is characterized in that: along light incident direction, be provided with successively the gummed group that a protruding flat pattern lens A, biconvex lens B and biconcave lens C connect airtight in described lens barrel, negative selenodont lens D, bear selenodont lens E and biconvex lens F.
2. near field according to claim 1 machine visual lens, it is characterized in that: the airspace between a described protruding flat pattern lens A and described gummed group is 0.1mm, airspace between described gummed group and described negative selenodont lens D is 1.8mm, airspace between described negative selenodont lens D and negative selenodont lens E is 0.15mm, and the clearance between described negative selenodont lens E and biconvex lens F is 0.5mm.
3. near field according to claim 1 and 2 machine visual lens, it is characterized in that: described lens barrel peripheral part is provided with external thread, the front end of lens barrel is threaded connection the gland that blocks a described protruding flat pattern lens A edge, between a described protruding flat pattern lens A and described gummed group, be folded with the spacer ring A for locating, between described gummed group and described negative selenodont lens D, by spacer B, locate, biconcave lens C in described gummed group is positioned at described spacer B, described negative selenodont lens D and described negative selenodont lens E are located by spacer ring C, negative selenodont lens D is embedded in spacer ring C, described spacer ring C and negative selenodont lens E are positioned at spacer D, between described negative selenodont lens E and biconvex lens F, by spacer D, located, the inner rear end of described lens barrel is provided with for locating the bulge loop of biconvex lens F.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420100237.2U CN203745710U (en) | 2014-03-07 | 2014-03-07 | Near-field machine vision lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420100237.2U CN203745710U (en) | 2014-03-07 | 2014-03-07 | Near-field machine vision lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203745710U true CN203745710U (en) | 2014-07-30 |
Family
ID=51345493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420100237.2U Expired - Lifetime CN203745710U (en) | 2014-03-07 | 2014-03-07 | Near-field machine vision lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203745710U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109283651A (en) * | 2018-12-12 | 2019-01-29 | 广东奥普特科技股份有限公司 | A kind of high-resolution machine visual lens structure small in size |
| CN109375332A (en) * | 2018-12-07 | 2019-02-22 | 协益电子（苏州）有限公司 | A kind of on-vehicle lens multi-sealing structure |
-
2014
- 2014-03-07 CN CN201420100237.2U patent/CN203745710U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375332A (en) * | 2018-12-07 | 2019-02-22 | 协益电子（苏州）有限公司 | A kind of on-vehicle lens multi-sealing structure |
| CN109375332B (en) * | 2018-12-07 | 2024-03-29 | 协益电子（苏州）有限公司 | Multiple seal structure of on-vehicle camera lens |
| CN109283651A (en) * | 2018-12-12 | 2019-01-29 | 广东奥普特科技股份有限公司 | A kind of high-resolution machine visual lens structure small in size |
| CN109283651B (en) * | 2018-12-12 | 2021-12-14 | 广东奥普特科技股份有限公司 | Small-size high-resolution machine vision lens structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 350108, Fujian Fuzhou high tech Zone Haixi new and high tech Industrial Park Innovation Park, No. 15, building 3-8 Patentee after: AZURE PHOTONICS Co.,Ltd. Address before: Cangshan District of Fuzhou City, Fujian province 350002 Jinshan Road No. 618 Orangerie Chau Industrial Park Building 3 layer eighteenth Patentee before: AZURE PHOTONICS Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140730 |