CN204740395U - Take dust keeper's super wide angle optical lens - Google Patents
Take dust keeper's super wide angle optical lens Download PDFInfo
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- CN204740395U CN204740395U CN201520525459.3U CN201520525459U CN204740395U CN 204740395 U CN204740395 U CN 204740395U CN 201520525459 U CN201520525459 U CN 201520525459U CN 204740395 U CN204740395 U CN 204740395U
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Abstract
The utility model provides a take dust keeper's super wide angle optical lens, including lens cone and lens cone back seat, be equipped with in the lens cone with the battery of lens of lens cone with the axle center, characterized by be equipped with to the outer wall top of lens cone the external screw thread, be equipped with the lens cone surface in other positions of lens cone outer wall, be equipped with to the inner wall top of lens cone back seat the internal thread, be equipped with the back seating face in other positions of lens cone back seat inner wall, along object space to image space first lens, second lens, third lens, fourth lens, the 5th lens, VI lenses, the 7th lens and the 8th lens of coaxial setting in proper order in the lens cone, the lens cone front end is equipped with dust keeper, dust keeper is close to air guide ring first lens on one side of with installing at the lens cone front end including the air induction conduit of establishing at the lens cone front end, air guide ring communicates with each other with the air induction conduit, and even opening there are eight round holes on air guide ring's inner wall, the utility model has the characteristics of torque control is accurate, dustproof effectual and resolution ratio height etc.
Description
Technical field
The utility model relates to a kind of optical lens.
Background technology
Optical lens comprises lens barrel and lens barrel back seat, lens combination is provided with in lens barrel, existing optical lens has the following disadvantages: one is join by the lock of the external thread of lens barrel outer wall and the internal thread of lens barrel back seat inwall the scope controlling torque value, but because injection machine is difficult to produce, there is the conforming screw thread of torsion, often suffer that the complaint of client is even returned goods owing to turning round business over range; Two is that optical lens easily affects imaging effect by contamination by dust; Three is that existing optical lens visual angle is large not, aperture is little.
Utility model content
The purpose of this utility model is exactly provide a kind of for above-mentioned situation to be convenient to control lock and to join torsion, can prevent contamination by dust camera lens and the large optical lens in visual angle.The purpose of this utility model realizes by following scheme: a kind of ultra-wide angle optical lens with dust guard, comprise lens barrel and lens barrel back seat, be provided with external thread with it is characterized in that the outer wall upper part of described lens barrel, described external thread is located at the end of lens barrel, lens barrel surface is provided with in other positions of lens barrel outer wall, the upper inside wall of described lens barrel back seat is provided with internal thread with dividing, described internal thread is located at the end of lens barrel back seat, seating face after other positions of lens barrel back seat inwall are provided with, lens barrel loads in lens barrel back seat, the external thread of lens barrel is engaged with the internal thread of lens barrel back seat, lens barrel surface on lens barrel outer wall and the rear seating face on lens barrel back seat inwall are the frictional connection of transition fit formula, carry out main lock by the lens barrel friction force that is surperficial and rear seating face that lens barrel outer wall and lens barrel back seat inwall are arranged and join torsion control, carry out auxiliary lock by threaded engagement and join torsion control, solve to depend merely on screw thread to control to lock and join the problem that torsion produces torsion over range, torsion is controlled more accurate, eliminate the quality problems of product, along the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens that object space to image space is coaxially arranged successively in lens barrel, and these first lens, the second lens, the 3rd lens and the 8th lens are the spheric glass of negative power, 4th lens, the 5th lens, the 6th lens and the 7th lens are the spheric glass of positive light coke, wherein, the effective aperture value of these the first lens is greater than 10mm, and these first lens are all convex curved month type eyeglass to object space in front surface and rear surface, and its radius of curvature R towards the front surface of object space is 12mm, and its radius of curvature R towards the rear surface of image space is 3.9mm, the center thickness T of these the first lens is 0.75mm, the refractive index Nd of described first lens is 1.61, dispersive power Vd is 54,
These second lens are all convex curved month type eyeglass to object space in front surface and rear surface, and its radius of curvature R towards the front surface of object space is 8mm, and its radius of curvature R towards the rear surface of image space is 3.2mm; The center thickness T of these the second lens is 0.6mm; The refractive index Nd of described second lens is 1.70, dispersive power Vd is 48;
3rd lens are all convex curved month type eyeglass to object space in front surface and rear surface, and its radius of curvature R towards the front surface of object space is 4.5mm, and are 3.2mm towards the radius of curvature R of the rear surface of image space; The center thickness T of the 3rd lens is 1.68mm; The refractive index Nd of described 3rd lens is 1.72, dispersive power Vd is 29;
4th lens are all convex curved month type eyeglass to object space in front surface and rear surface, and its radius of curvature R towards the front surface of object space is 10mm, and be R towards the radius-of-curvature of the rear surface of image space are 11.5mm; The center thickness T of the 4th lens is 1.60mm; The refractive index Nd of described 4th lens is 1.94, dispersive power Vd is 21;
5th lens are that convex to the convex biconvex spheric glass to image space of object space and rear surface, its radius of curvature R towards the front surface of object space is 28mm to front surface, and are-8mm towards the radius of curvature R of the rear surface of image space; The center thickness T of the 5th lens is 3.9mm; The refractive index Nd of described 5th lens is 1.75, dispersive power Vd is 48;
6th lens are that convex to the convex biconvex spheric glass to image space of object space and rear surface, its radius of curvature R towards the front surface of object space is 38mm to front surface, and are-9mm towards the radius of curvature R of the rear surface of image space; The center thickness T of the 6th lens is 2.4mm; The refractive index Nd of described 6th lens is 1.73, dispersive power Vd is 52;
7th lens are that convex to the convex biconvex spheric glass to image space of object space and rear surface, its radius of curvature R towards the front surface of object space is 18mm to front surface, and are-5.5mm towards the radius of curvature R of the rear surface of image space; The center thickness T of the 7th lens is 2.4mm; The refractive index Nd of described 7th lens is 1.70, dispersive power Vd is 58;
8th lens are all convex curved month type eyeglass to image space in front surface and rear surface, and its radius of curvature R towards the front surface of object space is-5.5mm, and are-20mm towards the radius of curvature R of the rear surface of image space; The center thickness T of the 8th lens is 0.7mm; The refractive index Nd of described 8th lens is 1.94, dispersive power Vd is 21.5;
Described first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens each other micro-spacing are arranged, and the rear surface of the 7th lens and the front surface of the 8th lens glue together each other;
The spacing M on adjacent two surfaces, center of these second lens and aforementioned first lens is 2.0mm, and the spacing M on adjacent two surfaces, center of the 3rd lens and aforementioned second lens is 1.2mm, the spacing M on adjacent two surfaces, center of the 4th lens and aforementioned 3rd lens is 0.4mm, the spacing M on adjacent two surfaces, center of the 5th lens and aforementioned 4th lens is 0.1mm, the spacing M on adjacent two surfaces, center of the 6th lens and aforementioned 5th lens is 0.09mm, the spacing M on adjacent two surfaces, center of the 7th lens and aforementioned 6th lens is 0.1mm, by adopting aforementioned first, two, three, four, five, six, the structural design of seven and eight lens, the visual angle of this camera lens is larger, 170 degree can be reached, aperture can accomplish F2.0, and accomplished large aperture ultraphotic angle, resolution is high simultaneously, it meets the requirement of high-definition quality and can have larger visual angle, being specially adapted to resolution joins on the high definition photosensitive products of 1,600 ten thousand pixel chip, in addition, and the utility model first, two, three, four, five, six, seven and eight lens are all designed to spherical lens, and its process is simple, cost is more cheap, is conducive to improve the market competitiveness, described first lens, second lens, 3rd lens, 4th lens, 5th lens, 6th lens, 7th lens and the 8th lens are all coated with visible ray and infrared light anti-reflection film, visible ray and infrared light is made to have good transmitance on each lens, also ensure that the brightness of entire picture while ensureing imaging clearly, the optical wavelength range of visible ray and infrared light is at 700nm-950nm, described lens barrel front end is provided with dust guard, described dust guard comprises the air induction conduit that is located at lens barrel front end and is arranged on the guide ring of lens barrel front end near the first lens side, described guide ring communicates with air induction conduit, the inwall of guide ring has eight circular holes uniformly, first the pressurized air entered from wireway enter guide ring, then inwardly sprayed uniformly by the circular hole on guide ring, forms uniform dust-proof air curtain, dust effectively can be avoided the impact of lens, improve imaging effect.The utility model has that torsion controls precisely, good dustproof effect and resolution high.
Accompanying drawing explanation
Fig. 1, the utility model structural representation.
Fig. 2, lens barrel sectional view.
Embodiment
Contrast Fig. 1, Fig. 2 is known, a kind of ultra-wide angle optical lens with dust guard, comprise lens barrel 1 and lens barrel back seat 2, the lens combination with lens barrel concentric is provided with in described lens barrel, be provided with external thread 3 with it is characterized in that the outer wall upper part of described lens barrel, described external thread is located at the end of lens barrel, lens barrel surface 4 is provided with in other positions of lens barrel outer wall, the upper inside wall of described lens barrel back seat is provided with internal thread 5 with dividing, described internal thread is located at the end of lens barrel back seat, seating face 6 after other positions of lens barrel back seat inwall are provided with, lens barrel loads in lens barrel back seat, the external thread of lens barrel is engaged with the internal thread of lens barrel back seat, lens barrel surface on lens barrel outer wall and the rear seating face on lens barrel back seat inwall are the frictional connection of transition fit formula, along the first lens 7, second lens 8, the 3rd lens 9, the 4th lens 10, the 5th lens 11, the 6th lens 12, the 7th lens 13 and the 8th lens 14 that object space to image space is coaxially arranged successively in lens barrel, and these first lens, the second lens, the 3rd lens and the 8th lens are the spheric glass of negative power, 4th lens, the 5th lens, the 6th lens and the 7th lens are the spheric glass of positive light coke,
Wherein, the effective aperture value of these the first lens is greater than 10mm, and these first lens are all convex curved month type eyeglass to object space in front surface and rear surface, and its radius of curvature R towards the front surface of object space is 12mm, and its radius of curvature R towards the rear surface of image space is 3.9mm; The center thickness T of these the first lens is 0.75mm; The refractive index Nd of described first lens is 1.61, dispersive power Vd is 54;
These second lens are all convex curved month type eyeglass to object space in front surface and rear surface, and its radius of curvature R towards the front surface of object space is 8mm, and its radius of curvature R towards the rear surface of image space is 3.2mm; The center thickness T of these the second lens is 0.6mm; The refractive index Nd of described second lens is 1.70, dispersive power Vd is 48;
3rd lens are all convex curved month type eyeglass to object space in front surface and rear surface, and its radius of curvature R towards the front surface of object space is 4.5mm, and are 3.2mm towards the radius of curvature R of the rear surface of image space; The center thickness T of the 3rd lens is 1.68mm; The refractive index Nd of described 3rd lens is 1.72, dispersive power Vd is 29;
4th lens are all convex curved month type eyeglass to object space in front surface and rear surface, and its radius of curvature R towards the front surface of object space is 10mm, and be R towards the radius-of-curvature of the rear surface of image space are 11.5mm; The center thickness T of the 4th lens is 1.60mm; The refractive index Nd of described 4th lens is 1.94, dispersive power Vd is 21;
5th lens are that convex to the convex biconvex spheric glass to image space of object space and rear surface, its radius of curvature R towards the front surface of object space is 28mm to front surface, and are-8mm towards the radius of curvature R of the rear surface of image space; The center thickness T of the 5th lens is 3.9mm; The refractive index Nd of described 5th lens is 1.75, dispersive power Vd is 48;
6th lens are that convex to the convex biconvex spheric glass to image space of object space and rear surface, its radius of curvature R towards the front surface of object space is 38mm to front surface, and are-9mm towards the radius of curvature R of the rear surface of image space; The center thickness T of the 6th lens is 2.4mm; The refractive index Nd of described 6th lens is 1.73, dispersive power Vd is 52;
7th lens are that convex to the convex biconvex spheric glass to image space of object space and rear surface, its radius of curvature R towards the front surface of object space is 18mm to front surface, and are-5.5mm towards the radius of curvature R of the rear surface of image space; The center thickness T of the 7th lens is 2.4mm; The refractive index Nd of described 7th lens is 1.70, dispersive power Vd is 58;
8th lens are all convex curved month type eyeglass to image space in front surface and rear surface, and its radius of curvature R towards the front surface of object space is-5.5mm, and are-20mm towards the radius of curvature R of the rear surface of image space; The center thickness T of the 8th lens is 0.7mm; The refractive index Nd of described 8th lens is 1.94, dispersive power Vd is 21.5;
Described first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens each other micro-spacing are arranged, and the rear surface of the 7th lens and the front surface of the 8th lens glue together each other;
The spacing M on adjacent two surfaces, center of these second lens and aforementioned first lens is 2.0mm, and the spacing M on adjacent two surfaces, center of the 3rd lens and aforementioned second lens is 1.2mm; The spacing M on adjacent two surfaces, center of the 4th lens and aforementioned 3rd lens is 0.4mm; The spacing M on adjacent two surfaces, center of the 5th lens and aforementioned 4th lens is 0.1mm; The spacing M on adjacent two surfaces, center of the 6th lens and aforementioned 5th lens is 0.09mm; The spacing M on adjacent two surfaces, center of the 7th lens and aforementioned 6th lens is 0.1mm, and described first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens are all coated with visible ray and infrared light anti-reflection film; Described lens barrel front end is provided with dust guard, described dust guard comprises the air induction conduit 15 that is located at lens barrel front end and is arranged on the guide ring 16 of lens barrel front end near the first lens side, described guide ring communicates with air induction conduit, and the inwall of guide ring has eight circular holes 17 uniformly.
Claims (1)
1. the ultra-wide angle optical lens with dust guard, comprise lens barrel (1) and lens barrel back seat (2), the lens combination with lens barrel concentric is provided with in described lens barrel, be provided with external thread (3) with it is characterized in that the outer wall upper part of described lens barrel, described external thread is located at the end of lens barrel, lens barrel surface (4) is provided with in other positions of lens barrel outer wall, the upper inside wall of described lens barrel back seat is provided with internal thread (5) with dividing, described internal thread is located at the end of lens barrel back seat, seating face (6) after other positions of lens barrel back seat inwall are provided with, lens barrel loads in lens barrel back seat, the external thread of lens barrel is engaged with the internal thread of lens barrel back seat, lens barrel surface on lens barrel outer wall and the rear seating face on lens barrel back seat inwall are the frictional connection of transition fit formula, along the first lens (7), the second lens (8), the 3rd lens (9), the 4th lens (10), the 5th lens (11), the 6th lens (12), the 7th lens (13) and the 8th lens (14) that object space to image space is coaxially arranged successively in lens barrel, and these first lens, the second lens, the 3rd lens and the 8th lens are the spheric glass of negative power, 4th lens, the 5th lens, the 6th lens and the 7th lens are the spheric glass of positive light coke,
Wherein, the effective aperture value of these the first lens is greater than 10mm, and these first lens are all convex curved month type eyeglass to object space in front surface and rear surface, and its radius of curvature R towards the front surface of object space is 12mm, and its radius of curvature R towards the rear surface of image space is 3.9mm; The center thickness T of these the first lens is 0.75mm; The refractive index Nd of described first lens is 1.61, dispersive power Vd is 54;
These second lens are all convex curved month type eyeglass to object space in front surface and rear surface, and its radius of curvature R towards the front surface of object space is 8mm, and its radius of curvature R towards the rear surface of image space is 3.2mm; The center thickness T of these the second lens is 0.6mm; The refractive index Nd of described second lens is 1.70, dispersive power Vd is 48;
3rd lens are all convex curved month type eyeglass to object space in front surface and rear surface, and its radius of curvature R towards the front surface of object space is 4.5mm, and are 3.2mm towards the radius of curvature R of the rear surface of image space; The center thickness T of the 3rd lens is 1.68mm; The refractive index Nd of described 3rd lens is 1.72, dispersive power Vd is 29;
4th lens are all convex curved month type eyeglass to object space in front surface and rear surface, and its radius of curvature R towards the front surface of object space is 10mm, and be R towards the radius-of-curvature of the rear surface of image space are 11.5mm; The center thickness T of the 4th lens is 1.60mm; The refractive index Nd of described 4th lens is 1.94, dispersive power Vd is 21;
5th lens are that convex to the convex biconvex spheric glass to image space of object space and rear surface, its radius of curvature R towards the front surface of object space is 28mm to front surface, and are-8mm towards the radius of curvature R of the rear surface of image space; The center thickness T of the 5th lens is 3.9mm; The refractive index Nd of described 5th lens is 1.75, dispersive power Vd is 48;
6th lens are that convex to the convex biconvex spheric glass to image space of object space and rear surface, its radius of curvature R towards the front surface of object space is 38mm to front surface, and are-9mm towards the radius of curvature R of the rear surface of image space; The center thickness T of the 6th lens is 2.4mm; The refractive index Nd of described 6th lens is 1.73, dispersive power Vd is 52;
7th lens are that convex to the convex biconvex spheric glass to image space of object space and rear surface, its radius of curvature R towards the front surface of object space is 18mm to front surface, and are-5.5mm towards the radius of curvature R of the rear surface of image space; The center thickness T of the 7th lens is 2.4mm; The refractive index Nd of described 7th lens is 1.70, dispersive power Vd is 58;
8th lens are all convex curved month type eyeglass to image space in front surface and rear surface, and its radius of curvature R towards the front surface of object space is-5.5mm, and are-20mm towards the radius of curvature R of the rear surface of image space; The center thickness T of the 8th lens is 0.7mm; The refractive index Nd of described 8th lens is 1.94, dispersive power Vd is 21.5;
Described first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens each other micro-spacing are arranged, and the rear surface of the 7th lens and the front surface of the 8th lens glue together each other;
The spacing M on adjacent two surfaces, center of these second lens and aforementioned first lens is 2.0mm, and the spacing M on adjacent two surfaces, center of the 3rd lens and aforementioned second lens is 1.2mm; The spacing M on adjacent two surfaces, center of the 4th lens and aforementioned 3rd lens is 0.4mm; The spacing M on adjacent two surfaces, center of the 5th lens and aforementioned 4th lens is 0.1mm; The spacing M on adjacent two surfaces, center of the 6th lens and aforementioned 5th lens is 0.09mm; The spacing M on adjacent two surfaces, center of the 7th lens and aforementioned 6th lens is 0.1mm, and described first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens are all coated with visible ray and infrared light anti-reflection film; Described lens barrel front end is provided with dust guard, described dust guard comprises the air induction conduit (15) that is located at lens barrel front end and is arranged on the guide ring (16) of lens barrel front end near the first lens side, described guide ring communicates with air induction conduit, and the inwall of guide ring has eight circular holes (17) uniformly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520525459.3U CN204740395U (en) | 2015-07-20 | 2015-07-20 | Take dust keeper's super wide angle optical lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520525459.3U CN204740395U (en) | 2015-07-20 | 2015-07-20 | Take dust keeper's super wide angle optical lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204740395U true CN204740395U (en) | 2015-11-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520525459.3U Expired - Fee Related CN204740395U (en) | 2015-07-20 | 2015-07-20 | Take dust keeper's super wide angle optical lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204740395U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133823A (en) * | 2018-02-08 | 2019-08-16 | 先进光电科技股份有限公司 | Optical imaging system |
-
2015
- 2015-07-20 CN CN201520525459.3U patent/CN204740395U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133823A (en) * | 2018-02-08 | 2019-08-16 | 先进光电科技股份有限公司 | Optical imaging system |
| CN110133823B (en) * | 2018-02-08 | 2021-06-11 | 先进光电科技股份有限公司 | Optical imaging system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151104 Termination date: 20160720 |