CN206057669U - A kind of zoom lens of the big image planes of the big thang-kng of ultra-wide angle - Google Patents
A kind of zoom lens of the big image planes of the big thang-kng of ultra-wide angle Download PDFInfo
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- CN206057669U CN206057669U CN201620926254.0U CN201620926254U CN206057669U CN 206057669 U CN206057669 U CN 206057669U CN 201620926254 U CN201620926254 U CN 201620926254U CN 206057669 U CN206057669 U CN 206057669U
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Abstract
This utility model discloses a kind of zoom lens of the big image planes of the big thang-kng of ultra-wide angle, include the front lens group with negative focal length, diaphragm, the middle microscope group with positive focal length and the rear microscope group with positive focal length from object space along optical axis direction, middle microscope group is between diaphragm and rear microscope group, front lens group and middle microscope group can move back and forth relative to diaphragm along optical axis, and rear microscope group is fixed；The front lens group includes first to fourth lens from object space successively along optical axis direction；The middle microscope group along optical axis direction from object space successively include the 5th to the 11st lens, the 5th lens be non-spherical lens, the 6th lens and the 7th lens it is mutually glued, the 8th lens and the 9th lens it is mutually glued；The rear microscope group includes the 12nd lens and the 13rd lens from object space successively along optical axis direction, and the 12nd lens and the 13rd lens are mutually glued.The each focal length section of this utility model holds high-res as quality guarantee, and daytime is little with the imaging effect difference at night, can also be imaged coloured image at starlight level night.
Description
Technical field
This utility model is related to camera lens manufacturing technology field, especially a kind of varifocal mirror of the big image planes of the big thang-kng of ultra-wide angle
Head.
Background technology
With the major project engineering expansion in China such as " safe city ", " safety construction ", " science and technology is strong alert ",
The night application of monitoring system is also more and more frequent.The monitoring zoom lens of domestic application adopt full glass sphere lens mostly at present
Composition, f-number FNo. are 1.6 or 1.8, and this camera lens can obtain preferable photographic effect when light is preferable in the daytime；But in star
As ambient light is low when lighting level night or details in a play not acted out on stage, but told through dialogues environment are distinguished, identification has some limitations.
In the case where glass aspheric lenses are introduced, f-number FNO1.4, FNO1.2 of camera lens is also on the market progressively
Occur, but in the case of larger thang-kng, it is middle burnt as matter can decrease, and as clear aperture is gradually increased, middle Jiao is as matter
Can be gradually lowered.In addition, at present on the market the imaging surface of zoom lens using it is more be little image planes 1/3inch system, big picture
Face zoom lens are more rare.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of zoom lens of the big image planes of the big thang-kng of ultra-wide angle, and which is each
Focal length section holds high-res as quality guarantee, and daytime is little with the imaging effect difference at night, can also be imaged colour at starlight level night
Image.
To reach above-mentioned purpose, the technical solution of the utility model is：A kind of varifocal mirror of the big image planes of the big thang-kng of ultra-wide angle
Head, includes the front lens group with negative focal length, diaphragm and the rear microscope group with positive focal length along optical axis direction, from object space also including tool
There is the middle microscope group of positive focal length, middle microscope group is between diaphragm and rear microscope group, front lens group and middle microscope group can be relative along optical axis
Move back and forth in diaphragm, rear microscope group is fixed；
The front lens group includes the first lens, the second lens, the 3rd lens and the 4th from object space successively along optical axis direction
Lens, with object space as front, the first lens are concavees lens after lordosis, and the second lens are front recessed rear concavees lens, and the 3rd lens are front
Convex rear concavees lens, the second lens and the 3rd lens it is mutually glued, the 4th lens be front recessed rear convex lenss；
The middle microscope group along optical axis direction from object space successively include the 5th lens, the 6th lens, the 7th lens, the 8th
Lens, the 9th lens, the tenth lens, the 11st lens, with object space as front, the 5th lens be lordosis after concavees lens and be aspheric
Face lens, the 6th lens are concavees lens after lordosis, and the 7th lens are convex lenss, the 6th lens and the mutual glue of the 7th lens after lordosis
Close, the 8th lens be lordosis after concavees lens, the 9th lens be lordosis after convex lenss, the 8th lens and the 9th lens it is mutually glued,
Tenth lens are concavees lens after lordosis, and the 11st lens are convex lenss after lordosis；
The rear microscope group includes the 12nd lens and the 13rd lens, the 12nd lens from object space successively along optical axis direction
It is that front recessed rear concavees lens, the 12nd lens and the 13rd lens are mutually glued for convex lenss, the 13rd lens after lordosis.
Further, the focal length of the 5th lens is fa, and the focal length after the 6th lens and the 7th lens gluing is fb,
Focal length after 8th lens and the 9th lens gluing is fc, and the focal length of the tenth lens is fd, the 11st lens
Focal length be fe, wherein fa, fb, fc and fe is on the occasion of fd is negative value, and following condition is also met between each focal length：1.0<fa/fb
<2.2,1.0<|fb/fd|<1.1,1.0<|fd/fe|<1.4.
Further, the fa>23mm, the fb>23mm, the fc>23mm, described | fd |>23mm, the fe>
23mm。
Further, the focal length after the 6th lens, the 7th lens, the 8th lens and the 9th lens combination be fbc, 1.0
<|fbc/fd|<1.1。
Further, the coefficient of expansion α of the 5th lens meets condition：α<8.As the 5th lens adopt aspherical mirror
Piece, its coefficient of expansion are stable, can be effectively guaranteed under relatively rugged environment camera lens as the stability of matter.
Further, the focal length of the front lens group is fL1, fL1For negative value, the focal length of the middle microscope group is fL2, fL2For just
Value；0.7<|fL1/fL2|<0.9.So that the focal power between front lens group and middle microscope group is more adapted to.
Further, camera lens wide-angle position focal length be fw, camera lens take the photograph distant positions focal length be ft, 2.5<ft/fw<
3.5。
Further, the camera lens also includes main cylinder, front lens barrel, middle lens barrel, rear lens barrel, front guide pin and rear guide pin, rear mirror
Cylinder is connected in main cylinder endoporus rear portion, and front lens barrel is enclosed within main cylinder endoporus front portion, and, in main cylinder endoporus postmedian, diaphragm is solid for intermediate mirror jacket casing
It is connected on the main cylinder between front lens barrel and middle lens barrel, the front lens group, the endoporus of middle lens barrel is housed in the endoporus of front lens barrel
In be equipped with the middle microscope group, in the endoporus of rear lens barrel be equipped with the rear microscope group；
Main tube outer surface front portion is cased with front regulation ring, and main tube outer surface rear portion is cased with rear regulation ring, in the middle part of main tube outer surface
It is cased with middle regulation ring；
Main cylinder front portion is provided with axial front strip through hole, and front regulation ring inner surface is provided with front skewed slot, and front guide pin is passed through
The front strip through hole, one end of front guide pin is connected on front lens barrel, the other end coordinates on front skewed slot；
Main cylinder rear portion is provided with axial rear strip through hole, adjusts ring inner surface afterwards and is provided with rear skewed slot, and rear guide pin is passed through
The rear strip through hole, one end of rear guide pin is connected on rear lens barrel, the other end coordinates on rear skewed slot；
The middle regulation ring is used to adjust diaphragm to change the clear aperature of diaphragm.
Before before so by rotating, regulation ring can be driven by front guide pin, lens barrel and front lens group move back and forth relative to diaphragm,
After rotation, regulation ring can drive middle lens barrel and middle microscope group to move back and forth relative to diaphragm by rear guide pin, facilitate focal length
Regulation.
Further, the diaphragm includes an annular seating, 10 arc shaped blades and a driving ring, and annular seating is provided with ten
Individual to be hinged through hole, ten central axis for being hinged through hole are evenly arranged on a face of cylinder, and driving ring is enclosed within annular seating, circle
The central axis of cylinder is coincided with the central axis of the central axis and driving ring centre bore of annular seating centre bore；In driving ring
Ten driving skewed slots are uniformly provided with the inner peripheral surface in heart hole, one end of each arc shaped blade passes through the first hinge in an institute
State be hinged on through hole, the other end by the second bearing pin coordinate one it is described drive skewed slot on；Driving ring is provided with a driving handle,
The middle regulation ring drives driving ring to rotate by driving handle.This diaphragm is rotated by driving ring and can conveniently drive 10 arcs
Blade is rotated simultaneously, to change the clear aperature of diaphragm.
Further, the main cylinder includes that front main cylinder and rear main cylinder, front main cylinder and rear main cylinder are fixedly connected with by bolt, leads afterwards
The outer surface of cylinder is also connected an outer tube, the rear regulation ring include being enclosed within after internal ring on main cylinder and the outer shroud being enclosed within outer tube,
The rear skewed slot is arranged on internal ring, and outer tube is provided with the radial direction resigning through hole being along the circumferential direction distributed, and the inner surface of outer shroud sets
There is axial groove, a connected nail is connected the internal ring, other end cooperation in the axial groove through described radial direction resigning through hole one end
On；Motor is housed on the outer tube, the middle regulation ring outer peripheral face is provided with driven gear, in the drive shaft of motor
Connected one has driving gear, and driving gear is meshed with driven gear.This structure can facilitate the assembling of whole camera lens and light
The regulation of circle.
This utility model as using three Component Structures, front lens group and middle microscope group can move back and forth relative to diaphragm, after
Microscope group is fixed.Microscope group is fixed and focal length is positive focal length afterwards, and two lens of rear microscope group are also mutually glued, so be can ensure that from short
Jiao to during focal length zoom, will not drift about and keep each focal length section stable as matter by image planes；So that each focal length section is as mass-energy
High-res are kept enough.And front lens group adopts four lens combinations, can effectively increase the zoom ratio of focal length and short focus；Middle microscope group bag
At least 7 pieces lens are included, wherein the 5th lens are glass aspheric lenses, the 6th lens and the 7th lens are mutually glued, the 8th
Lens and the 9th lens are mutually glued, and the 5th lens to the 11st lens combination are into positive focal length lens group, wherein the tenth lens are
Negative focal length, these combinations effectively balance the distribution of spherical aberration while also having corrected coma, astigmatism and the curvature of field well.Therefore exist
Under each focal length section is as matter stable case, each focal length section is higher as matter resolution.
On the other hand, the lens group of this camera lens is combined using three constituent elements, and the concrete setting by each lens arrangement, can be done
To the big image planes of the big thang-kng of ultra-wide angle so that daytime is little with the imaging effect difference at night, can also be imaged coloured silk at starlight level night
Color image.F-number of the present utility model can accomplish FNO 0.9, used in being especially suitable for starlight level environment.
Description of the drawings
Fig. 1 is the structural representation of this utility model lens group；
Fig. 2 is structure sectional view of this utility model in wide-angle position；
Fig. 3 is structure sectional view of this utility model in photography distant positions；
Fig. 4 is that the clear aperature of diaphragm is in minimum state front view；
Fig. 5 is the clear aperature of diaphragm in maximum rating front view；
Fig. 6 is annular seating front view；
Fig. 7 is the front view of driving ring；
Fig. 8 is the front view of arc shaped blade.
Specific embodiment
This utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Shown in Fig. 1 to Fig. 8, a kind of zoom lens of the big image planes of the big thang-kng of ultra-wide angle include from object space along optical axis direction
Front lens group 100 with negative focal length, diaphragm 200, the middle microscope group 300 with positive focal length and the rear microscope group 400 with positive focal length,
Middle microscope group 300 is between diaphragm 200 and rear microscope group 400, and front lens group 100 and middle microscope group 300 can be along optical axises relative to light
Door screen 200 moves back and forth, and rear microscope group 400 is fixed.
The front lens group 100 includes the first lens 1, the second lens 2, the 3rd lens 3 from object space successively along optical axis direction
With the 4th lens 4, with object space as front, the first lens 1 are concavees lens after lordosis, and the second lens 2 are front recessed rear concavees lens, the 3rd
Lens 3 are concavees lens after lordosis, the second lens 2 and the 3rd lens 3 mutually gluing, and the 4th lens 4 are front recessed rear convex lenss；
The middle microscope group 300 includes the 5th lens 5, the 6th lens 6, the 7th lens from object space successively along optical axis direction
7th, the 8th lens 8, the 9th lens 9, the tenth lens 10, the 11st lens 11, with object space as front, after the 5th lens 5 are lordosis
Concavees lens and be non-spherical lens, the 6th lens 6 are concavees lens after lordosis, and the 7th lens 7 are convex lenss after lordosis, the 6th lens
6 and the 7th lens 7 it is mutually glued, the 8th lens 8 are concavees lens after lordosis, and the 9th lens 9 are convex lenss after lordosis, the 8th lens
8 and the 9th lens 9 it is mutually glued, the tenth lens 10 are concavees lens after lordosis, and the 11st lens 11 are convex lenss after lordosis；
The rear microscope group 400 includes the 12nd lens 12 and the 13rd lens 13 from object space successively along optical axis direction, the
12 lens 12 are front recessed rear concavees lens, the 12nd lens 12 and the 13rd lens for convex lenss, the 13rd lens 13 after lordosis
13 is mutually glued.
The focal length of the 5th lens 5 is fa, and the focal length after the 6th lens 6 and 7 gluing of the 7th lens is fb, described
Focal length after 8th lens 8 and 9 gluing of the 9th lens is fc, and the focal length of the tenth lens 10 is fd, the 11st lens
11 focal length is fe, and wherein fa, fb, fc and fe is on the occasion of fd is negative value, and following condition is also met between each focal length：1.0<fa/
fb<2.2,1.0<|fb/fd|<1.1,1.0<|fd/fe|<1.4.
The fa>23mm, the fb>23mm, the fc>23mm, described | fd |>23mm, the fe>23mm.
Focal length after 6th lens 6, the 7th lens 7, the 8th lens 8 and the 9th lens 9 are combined is fbc, 1.0<|
fbc/fd|<1.1。
The coefficient of expansion α of the 5th lens 5 meets condition：α<8.
The focal length of the front lens group 100 is fL1, fL1For negative value, the focal length of the middle microscope group 300 is fL2, fL2For just
Value；0.7<|fL1/fL2|<0.9。
Camera lens wide-angle position focal length be fw, camera lens take the photograph distant positions focal length be ft, 2.5<ft/fw<3.5.
Fig. 2 to Fig. 8 is further illustrated, the camera lens also include main cylinder 14, front lens barrel 15, middle lens barrel 16, rear lens barrel 17,
Front guide pin 18 and rear guide pin 19, rear lens barrel 17 are connected in 14 endoporus rear portion of main cylinder, and front lens barrel 15 is enclosed within 14 endoporus of main cylinder front portion, in
Between lens barrel 16 be enclosed within 14 endoporus postmedian of main cylinder, diaphragm 200 is connected on the main cylinder 14 between front lens barrel 15 and middle lens barrel 16,
The front lens group 100 is housed in the endoporus of front lens barrel 15, the middle microscope group 300, rear mirror are housed in the endoporus of middle lens barrel 16
The rear microscope group 400 is housed in the endoporus of cylinder 17；
14 outer surface front portion of main cylinder is cased with front regulation ring 20, and 14 outer surface rear portion of main cylinder is cased with rear regulation ring 21, main cylinder 14
Middle regulation ring 22 is cased with the middle part of outer surface；
14 front portion of main cylinder is provided with axial front strip through hole 1411, and 20 inner surface of front regulation ring is provided with front skewed slot 20a,
Front guide pin 18 passes through the front strip through hole 1411, and one end of front guide pin 18 is connected on front lens barrel 15, the other end coordinates and exists
On front skewed slot 20a；
14 rear portion of main cylinder is provided with axial rear strip through hole 1421, and 21 inner surface of rear regulation ring is provided with rear skewed slot 21a,
Guide pin 19 passes through the rear strip through hole 1421 afterwards, and one end of rear guide pin 19 is connected on rear lens barrel 17, the other end coordinates and exists
Afterwards on skewed slot 21a；
The middle regulation ring 22 is used to adjust diaphragm 200 to change the clear aperature of diaphragm 200.
The diaphragm 200 includes 201,10 arc shaped blades 202 of an annular seating and a driving ring 203, on annular seating 201
It is provided with ten and is hinged through hole 2011, ten central axis for being hinged through hole 2011 is evenly arranged on a face of cylinder b, driving ring
203 are enclosed within annular seating 201, in the central axis of face of cylinder b and the central axis and driving ring 203 of 201 centre bore of annular seating
The central axis in heart hole coincides；
Be uniformly provided with the inner peripheral surface of 203 centre bore of driving ring ten driving skewed slots 2031, the one of each arc shaped blade 202
End be hinged on described in one by the first bearing pin 204 be hinged on through hole 2011, the other end is coordinated at one by the second bearing pin 205
On the driving skewed slot 2031；
Driving ring 203 is provided with a driving handle 2032, and the middle regulation ring 22 drives driving ring 203 by driving handle 2032
Rotate.
The main cylinder 14 includes that front main cylinder 141 and rear main cylinder 142, front main cylinder 141 and rear main cylinder 142 are mutually solid by bolt
Even, the outer surface of main cylinder 142 is also connected an outer tube 143 afterwards, the rear regulation ring 21 include being enclosed within after internal ring on main cylinder 142
211 are arranged on internal ring 211 with the outer shroud 212 being enclosed within outer tube 143, the rear skewed slot 21a, and outer tube 143 is provided with circumferentially
The radial direction resigning through hole of directional spreding, the inner surface of outer shroud 212 are provided with axial groove 2121, and a connected nail 213 passes through the radial direction
Resigning through hole one end is connected the cooperation of the internal ring 211, other end on the axial groove 2121；
Motor 144 is housed on the outer tube 143,22 outer peripheral face of middle regulation ring is provided with driven gear 221, drives
In the drive shaft of galvanic electricity machine 144, connected one has driving gear 145, and driving gear 145 is meshed with driven gear 221.Drive electricity
Machine 144 can select motor.
First trip bolt 146 is housed on the outer shroud 212, the first trip bolt 146 is engaged to outer shroud with outer tube 143
212 carry out fastening positioning；Second trip bolt 147, regulation ring before the second trip bolt 147 pairs are housed on main cylinder 142 after described
20 carry out fastening positioning.
After described, the rear portion of main cylinder 142 is also cased with a rotatable connecting seat 148.In order to this camera lens and picture pick-up device
It is connected.The front end of the front main cylinder 141 is also connected with an interchangeable shade 149.
The present embodiment is as follows using process：
Position if necessary to adjust front lens group 100, regulation ring 20 before rotating, by the front skewed slot 20a of front regulation ring 20
Before driving, guide pin 18 is moved along strip through hole 1411 before the axial direction that 14 front portion of main cylinder is provided with, and front guide pin 18 drives front lens barrel 15 again
Move back and forth relative to diaphragm 200 along optical axis with front lens group 100, after adjustment good position, screw the second trip bolt 147, with regard to energy
Fastening positioning is carried out to front regulation ring 20, it is fixed to carry out by lens barrel 15 before front regulation ring 20, front guide pin 18 pairs and front lens group 100
Position.
The position of microscope group 300 in the middle of if necessary to adjust, rotates outer shroud 212, and outer shroud 212 passes through 2121 band of the axial groove
Dynamic connected nail 213, connected nail 213 drive internal ring 211 to rotate again, are arranged on guide pin 19 after the rear skewed slot 21a drives on internal ring 211
Described rear strip through hole 1421 along main cylinder 14 is moved, and rear guide pin 19 drives middle lens barrel 16 and the middle microscope group 300 again
Move back and forth relative to diaphragm 200 along optical axis, after adjustment good position, screw the first trip bolt 146, outer shroud 212 is carried out tightly
Fixed bit, middle lens barrel 16 and the middle microscope group 300 can just be positioned.
If the clear aperature adjusted by diaphragm 200, start motor 144, by driving gear 145 and driven gear
221 is meshed rotate with disorder of internal organs regulation ring 22, and middle regulation ring 22 drives driving ring 203 to rotate by driving handle 2032 again.Drive
When ring 203 is rotated clockwise, driving ring 203 drives skewed slot 2031 to drive 10 arcs simultaneously by ten on centre bore inner peripheral surface
Shape blade 202 is rotated clockwise, and the clear aperature of diaphragm 200 is tapered into, as shown in Fig. 4 the clear aperature of diaphragm 200
In minimum state front view；When driving ring 203 is rotated counterclockwise, driving ring 203 is by ten on centre bore inner peripheral surface
Skewed slot 2031 is driven to drive 10 arc shaped blades 202 to rotate counterclockwise simultaneously, the clear aperature of diaphragm 200 becomes larger, such as Fig. 5
Shown is that the clear aperature of diaphragm 200 is in maximum rating front view.Drive skewed slot 2031 to be driven by the second bearing pin 205
Arc shaped blade 202 is rotated.
It is structure sectional view of the camera lens in wide-angle position shown in Fig. 2, now between front lens group 100 and middle microscope group 300
Distance is farthest；Fig. 3 is structure sectional view of the camera lens in photography distant positions, now the spacing of front lens group 100 and middle microscope group 300
From nearest.
The above is only one preferred embodiment of this utility model, those skilled in the art makees what is be equal to by claim
Change both falls within the protection domain of this case.
Claims (10)
1. a kind of zoom lens of the big image planes of the big thang-kng of ultra-wide angle, include the front mirror with negative focal length from object space along optical axis direction
Group, diaphragm and the rear microscope group with positive focal length, it is characterised in that：Also include the middle microscope group with positive focal length, at middle microscope group
Between diaphragm and rear microscope group, front lens group and middle microscope group can move back and forth relative to diaphragm along optical axis, and rear microscope group is fixed；
The front lens group includes the first lens, the second lens, the 3rd lens and the 4th lens from object space successively along optical axis direction,
With object space as front, the first lens are concavees lens after lordosis, and the second lens are front recessed rear concavees lens, and the 3rd lens are recessed after lordosis
Lens, the second lens and the 3rd lens it is mutually glued, the 4th lens be front recessed rear convex lenss；
The middle microscope group includes the 5th lens, the 6th lens, the 7th lens, the 8th saturating from object space successively along optical axis direction
Mirror, the 9th lens, the tenth lens, the 11st lens, with object space as front, the 5th lens be lordosis after concavees lens and be aspheric surface
Lens, the 6th lens are concavees lens after lordosis, and the 7th lens are convex lenss, the 6th lens and the mutual glue of the 7th lens after lordosis
Close, the 8th lens be lordosis after concavees lens, the 9th lens be lordosis after convex lenss, the 8th lens and the 9th lens it is mutually glued,
Tenth lens are concavees lens after lordosis, and the 11st lens are convex lenss after lordosis；
The rear microscope group includes the 12nd lens and the 13rd lens from object space successively along optical axis direction, and the 12nd lens are front
Convex rear convex lenss, the 13rd lens are that front recessed rear concavees lens, the 12nd lens and the 13rd lens are mutually glued.
2. zoom lens of the big image planes of the big thang-kng of a kind of ultra-wide angle according to claim 1, it is characterised in that：Described 5th
The focal length of lens is fa, and the focal length after the 6th lens and the 7th lens gluing is fb, the 8th lens and the 9th lens
Focal length after gluing is fc, and the focal length of the tenth lens is fd, and the focal length of the 11st lens is fe, wherein fa, fb, fc
It is on the occasion of fd is negative value, and following condition is also met between each focal length with fe：1.0<fa/fb<2.2,1.0<|fb/fd|<1.1,
1.0<|fd/fe|<1.4。
3. zoom lens of the big image planes of the big thang-kng of a kind of ultra-wide angle according to claim 2, it is characterised in that：The fa>
23mm, the fb>23mm, the fc>23mm, described | fd |>23mm, the fe>23mm.
4. zoom lens of the big image planes of the big thang-kng of a kind of ultra-wide angle according to claim 2, it is characterised in that：Described 6th
Focal length after lens, the 7th lens, the 8th lens and the 9th lens combination be fbc, 1.0<|fbc/fd|<1.1.
5. zoom lens of the big image planes of the big thang-kng of a kind of ultra-wide angle according to claim 1, it is characterised in that：Described 5th
The coefficient of expansion α of lens meets condition：α<8.
6. zoom lens of the big image planes of the big thang-kng of a kind of ultra-wide angle according to claim 1, it is characterised in that：The front mirror
The focal length of group is fL1, fL1For negative value, the focal length of the middle microscope group is fL2, fL2Be on the occasion of；0.7<|fL1/fL2|<0.9。
7. zoom lens of the big image planes of the big thang-kng of a kind of ultra-wide angle according to claim 1, it is characterised in that：Camera lens is wide
The focal length of Angle Position be fw, camera lens take the photograph distant positions focal length be ft, 2.5<ft/fw<3.5.
8. zoom lens of the big image planes of the big thang-kng of a kind of ultra-wide angle according to any one of claim 1 to 7, its feature exist
In：The camera lens also includes main cylinder, front lens barrel, middle lens barrel, rear lens barrel, front guide pin and rear guide pin, and rear lens barrel is connected in main cylinder
Endoporus rear portion, it is anterior that front lens barrel is enclosed within main cylinder endoporus, intermediate mirror jacket casing in main cylinder endoporus postmedian, diaphragm be connected in front lens barrel and
On main cylinder between middle lens barrel, the front lens group is housed, equipped with described in the endoporus of middle lens barrel in the endoporus of front lens barrel
Between microscope group, in the endoporus of rear lens barrel be equipped with the rear microscope group；
Main tube outer surface front portion is cased with front regulation ring, and main tube outer surface rear portion is cased with rear regulation ring, is cased with the middle part of main tube outer surface
Middle regulation ring；
Main cylinder front portion is provided with axial front strip through hole, and front regulation ring inner surface is provided with front skewed slot, and front guide pin passes through described
Front strip through hole, one end of front guide pin is connected on front lens barrel, the other end coordinates on front skewed slot；
Main cylinder rear portion is provided with axial rear strip through hole, adjusts ring inner surface afterwards and is provided with rear skewed slot, and rear guide pin passes through described
Strip through hole afterwards, one end of rear guide pin is connected on rear lens barrel, the other end coordinates on rear skewed slot；
The middle regulation ring is used to adjust diaphragm to change the clear aperature of diaphragm.
9. zoom lens of the big image planes of the big thang-kng of a kind of ultra-wide angle according to claim 8, it is characterised in that：The diaphragm
Including an annular seating, 10 arc shaped blades and a driving ring, annular seating is provided with ten and is hinged through hole, and ten are hinged through hole
Central axis is evenly arranged on a face of cylinder, and driving ring is enclosed within annular seating, in the central axis and annular seating on the face of cylinder
The central axis of the central axis and driving ring centre bore in heart hole coincides；
Ten driving skewed slots are uniformly provided with the inner peripheral surface of driving ring centre bore, one end of each arc shaped blade passes through the first bearing pin
Be hinged on described in one be hinged on through hole, the other end by the second bearing pin coordinate one it is described drive skewed slot on；
Driving ring is provided with a driving handle, and the middle regulation ring drives driving ring to rotate by driving handle.
10. zoom lens of the big image planes of the big thang-kng of a kind of ultra-wide angle according to claim 8, it is characterised in that：The master
Cylinder includes that front main cylinder and rear main cylinder, front main cylinder and rear main cylinder are fixedly connected with by bolt, afterwards the also connected outer tube of the outer surface of main cylinder,
The rear regulation ring include being enclosed within after internal ring on main cylinder and the outer shroud being enclosed within outer tube, the rear skewed slot is arranged on internal ring,
Outer tube is provided with the radial direction resigning through hole being along the circumferential direction distributed, and the inner surface of outer shroud is provided with axial groove, and a connected nail passes through institute
State radial direction resigning through hole one end be connected the internal ring, the other end coordinate on the axial groove；
Motor is housed on the outer tube, the middle regulation ring outer peripheral face is provided with driven gear, the drive shaft of motor
Upper connected one has driving gear, and driving gear is meshed with driven gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620926254.0U CN206057669U (en) | 2016-08-24 | 2016-08-24 | A kind of zoom lens of the big image planes of the big thang-kng of ultra-wide angle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620926254.0U CN206057669U (en) | 2016-08-24 | 2016-08-24 | A kind of zoom lens of the big image planes of the big thang-kng of ultra-wide angle |
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| CN206057669U true CN206057669U (en) | 2017-03-29 |
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| CN201620926254.0U Withdrawn - After Issue CN206057669U (en) | 2016-08-24 | 2016-08-24 | A kind of zoom lens of the big image planes of the big thang-kng of ultra-wide angle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106094185A (en) * | 2016-08-24 | 2016-11-09 | 厦门力鼎光电技术有限公司 | A kind of ultra-wide angle leads to greatly the zoom lens of wide image planes |
-
2016
- 2016-08-24 CN CN201620926254.0U patent/CN206057669U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106094185A (en) * | 2016-08-24 | 2016-11-09 | 厦门力鼎光电技术有限公司 | A kind of ultra-wide angle leads to greatly the zoom lens of wide image planes |
| CN106094185B (en) * | 2016-08-24 | 2018-05-04 | 厦门力鼎光电技术有限公司 | A kind of zoom lens of the big image planes of the big thang-kng of ultra-wide angle |
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