CN105652417A - Starlight-level road monitoring zoom lens - Google Patents
Starlight-level road monitoring zoom lens Download PDFInfo
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- CN105652417A CN105652417A CN201610232689.XA CN201610232689A CN105652417A CN 105652417 A CN105652417 A CN 105652417A CN 201610232689 A CN201610232689 A CN 201610232689A CN 105652417 A CN105652417 A CN 105652417A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/006—Filter holders
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/025—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using glue
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Abstract
The invention discloses a starlight-level road monitoring zoom lens which comprises a main lens barrel (3), and is characterized in that a front lens barrel (1), a diaphragm adjusting mechanism and a rear lens barrel (2) are arranged in the main lens barrel (3) in sequence along the incident direction of light rays, wherein a first lens (C1), a second lens (C2), a third lens (C3), a fourth lens (C4) and a fifth lens (C5) are arranged in the front lens barrel (1) in sequence along the incident direction of the light rays. The starlight-level road monitoring zoom lens adopts an ultra-large diaphragm technology to make the diaphragm value reach F2.0; furthermore, by the adoption of a multilayer broad-band film coating technology and an ultra-low dispersion optical glass technology, the lens effectively increases the light transmittance rate and relieves phenomena such as glaring and ghosting easily caused by a common lens; and in the aspect of appearance, the lens adopts a full-metal body, so that a metal shell achieves extremely good pressure bearing and protection effects on the lens.
Description
Technical field
The present invention relates to camera lens field, especially a kind of starlight level road monitoring zoom lens.
Background technology
Although traditional infrared light filling technology can obtain imaging clearly under low-light (level), but color can be lost, can be only formed black white image, and by infrared light filling, the reflective object of this kind of height of car plate is easy to overexposure, and wearing color, body color, car plate etc. clothes is all often the crucial clue solved a case, must not lose so the clear colour imaging demand under low-light (level) gets more and more.
Low-illuminance cameras is the focus product of the monitoring trade released recently as semiconductor technology development. Low-illuminance cameras, from literal just it can be seen that refer to and still can obtain the video camera comparing picture rich in detail when illumination is dark. Front-end camera is generally divided into four grades by current security protection industry: regular grade video camera, and general brightness value is all higher than 0.1lux; Brightness value scope video camera between 0.1lux to 0.01lux, is commonly referred to as low-illuminance cameras; And it being referred to as a moon lighting level video camera, its brightness value scope is between 0.01lux to 0.001lux; When minimal illumination value reaches even below 0.0001lux time, just reach the ultra-low illumination video camera of " starlight level ". Without any secondary light source under starlight environment, it is possible to show coloured image clearly, it is different from common camera and is only able to display black white image.
Current low-illuminance cameras is widely used in the fields that day and night monitoring requirement is higher such as safe city, army, frontier defense, bank, hospital, highway.
Summary of the invention
It is an object of the invention to provide a kind of starlight level road monitoring zoom lens, to be implemented without infrared lamp also without flash lamp, can realize not trailing evening colored monitoring clearly.
The technical scheme is that
A kind of starlight level road monitoring zoom lens, described road monitoring pick-up lens includes body tube, is disposed with front lens barrel, diaphragm governor motion and rear lens barrel in described body tube along light direction; It is disposed with the first eyeglass, the second eyeglass, the 3rd eyeglass, the 4th eyeglass and the 5th eyeglass along light direction in described front lens barrel, wherein the first eyeglass, the second eyeglass and the 4th eyeglass are positive selenodont lens, 3rd eyeglass is double concave type lens, 5th eyeglass is lenticular lens, and first eyeglass and the second eyeglass composition contiguity glued group, the 3rd eyeglass and the 4th eyeglass composition contiguity glued group;It is disposed with the 6th eyeglass, the 7th eyeglass, the 8th eyeglass, the 9th eyeglass, the tenth eyeglass and the 11st eyeglass along light direction in described rear lens barrel, wherein the 6th eyeglass, the 9th eyeglass are lenticular lens, tenth eyeglass is single convex type lens, 7th eyeglass is double concave type lens, 8th eyeglass and the 11st eyeglass are crescent lens, and the 8th eyeglass and the 9th eyeglass form glued group of contiguity, front lens barrel is provided externally with the focusing handwheel threadeded with it, and focusing handwheel rotates socket with body tube, diaphragm governor motion includes diaphragm sheet, lobe plate and light ring support, lobe plate and light ring support are rotationally connected, diaphragm sheet is connected by loose slot with lobe plate, diaphragm sheet journey curved month type, it is respectively arranged at two ends with a diaphragm guide pin, described 2 diaphragm guide pins are separately positioned on the two sides of diaphragm sheet, and outwardly convex, lobe plate has circular open, circular open is provided with radial multiple diaphragm guide nail slot, diaphragm guide pin is flexibly connected in diaphragm guide nail slot, lobe plate is slidably connected by lobe plate slip location-plate and aperture handwheel, aperture handwheel rotates socket with body tube, the outer wall of rear lens barrel is provided with arc-shaped step, and front lens barrel is fixing with the arc-shaped step of rear lens barrel to be connected.
It is provided with rosette in the middle part of described body tube; It is additionally provided with the first packing ring between second eyeglass and the 3rd eyeglass; The rear and front end of rear lens barrel is respectively equipped with the first pressure ring and the second pressure ring.
Described front lens barrel front end is provided with filter ring; The internal perisporium of described filter ring is gradually reduced by stepped inside outward, and the internal perisporium of the front-end port of filter ring is provided with screw thread.
Described body tube is externally provided with retainer ring, is provided with a notch in retainer ring, and the notch position that body tube is positioned at corresponding retainer ring is provided with guide pin; 6th eyeglass, be provided with between the 7th eyeglass and the 8th eyeglass machinery spacer ring.
Jiao >=12.5mm after the flange of described starlight level road monitoring zoom lens, burnt 12.82mm after optics; Focal length is 35mm �� 2mm, and the angle of visual field is 36 �� �� 1.8 ��.
Described aperture handwheel by aperture handwheel banking pin and body tube carry out rotating spacing; Focusing handwheel by focusing handwheel banking pin and body tube carry out rotating spacing; Rear lens barrel is additionally provided with interface.
Described diaphragm sheet is lamellar, falcate, and its outward flange radius is 29 �� 0.03mm, and inner edges radius is 20.6 �� 0.03mm, and the folding angle [alpha] of two diaphragm guide pin is 138 �� �� 6 ��; Diaphragm guide pin is and the copper post of diaphragm sheet riveted.
The S1 curvature radius of described first eyeglass is 23.032mm, S2 curvature radius is 49.48mm, and refractive index is 1.755205 �� 50X10-5, abbe number is 27.54 �� 0.8%, and effective diameter is 31mm, and lens center thickness D1 is 5 �� 0.02; The S3 curvature radius of the second eyeglass is 49.48mm, S4 curvature radius is 14.457mm, and refractive index is 1.523074 �� 50X10-5, abbe number is 58.658 �� 0.8%, and effective diameter is 31.1mm, and lens center thickness D2 is 2.2 �� 0.02; The S5 curvature radius of the 3rd eyeglass is-24.608mm, and S6 curvature radius is 20.398mm, and refractive index is 1.846670 �� 50X10-5, abbe number is 23.791 �� 0.8%, and effective diameter is 18.6mm, and lens center thickness D3 is 2.3 �� 0.02; The S7 curvature radius of the 4th eyeglass is 20.398mm, S8 curvature radius is 198.437mm, and refractive index is 1.744004 �� 50X10-5, abbe number is 44.904 �� 0.8%, and effective diameter is 20.6mm, and lens center thickness D4 is 4.5 �� 0.02;The S9 curvature radius of the 5th eyeglass is 46.969mm, S10 curvature radius is-29.38mm, and refractive index is 1.496998 �� 50X10-5, abbe number is 81.595 �� 0.8%, and effective diameter is 20mm, and lens center thickness D5 is 5.5 �� 0.02.
The S11 curvature radius of described 6th eyeglass is 39.439mm, S12 curvature radius is-51.155mm, and refractive index is 1.945958 �� 50X10-5, abbe number is 17.944 �� 0.8%, and effective diameter is 22.2mm, and lens center thickness D5 is 12.8 �� 0.02; The S13 curvature radius of the 7th eyeglass is-44.344mm, and S14 curvature radius is 26.51mm, and refractive index is 1.728250 �� 50X10-5, abbe number is 28.315 �� 0.8%, and effective diameter is 22.2mm, and lens center thickness D5 is 2 �� 0.02; The S15 curvature radius of the 8th eyeglass is 50.729mm, S16 curvature radius is-21.569mm, and refractive index is 1.846670 �� 50X10-5, abbe number is 23.791 �� 0.8%, and effective diameter is 22.4mm, and lens center thickness D5 is 1.6 �� 0.02; The S7 curvature radius of the 9th eyeglass is 21.569mm, S18 curvature radius is-38.818mm, and refractive index is 1.607381 �� 50X10-5, abbe number is 56.657 �� 0.8%, and effective diameter is 23.1mm, and lens center thickness D5 is 8.2 �� 0.02; The S19 curvature radius of the tenth eyeglass is 25.651mm, S20 curvature radius is infinitely great, and refractive index is 1.617203 �� 50X10-5, abbe number is 53.928 �� 0.8%, and effective diameter is 20.4mm, and lens center thickness D5 is 19.5 �� 0.02; The S21 curvature radius of the 11st eyeglass is 27.959mm, S22 curvature radius is 15.4mm, and refractive index is 1.785901 �� 50X10-5, abbe number is 44.207 �� 0.8%, and effective diameter is 18.5mm, and lens center thickness D5 is 2.1 �� 0.02.
The invention has the beneficial effects as follows:
The starlight level road monitoring zoom lens of the present invention adopts super large aperture technology, and f-number reaches F2.0; Additionally, camera lens adopts multilamellar broadband coating technique, ED optical glass technology, it is effectively improved logical light rate, alleviates the phenomenons such as glare, ghost that common lens easily occurs; Outward appearance aspect, this kind of camera lens all-metal fuselage, camera lens is also functioned to good resistance to compression, protective effect by metal shell.
In the garden that street lamp is not opened, from the Contrast on effect of common monitoring camera of same time at night Yu the starlight level road monitoring zoom lens of the present invention. The image that common monitoring camera obtains after forcing colour can only indistinctly see the profile of trees, road, building, and integrated environment is as dark as a stack of black cats, has had been out the effect of monitoring; And the starlight level road monitoring zoom lens of the present invention can reduce very clear for the details of road, building, even remote vehicle, and overall picture does not have obvious noise, and the color effect performance under low photograph is outstanding.
It is on road monitoring that the starlight level road monitoring zoom lens of the present invention applies maximum scenes, it is necessary to can see integrated environment clearly, can suppress again vehicular traffic headlight, see car plate clearly. Low according to needing under scene to allow more light enter video camera as far as possible on the one hand, need excessively bright high light reduction but then, otherwise easy overexposure interference imaging effect. The starlight level road monitoring zoom lens of the present invention solves this difficult problem, and in actual monitored, car headlight high light is pressed, and it is high-visible that vehicle body details includes car plate, and periphery road environment is also very clear.
Along with the raising of pixel, colored low more poor according to effect, this is owing to the size of sensor is required by video camera, and when change in size is little, pixel is more many, and the photosensitive area of unit picture element is more little, thus low more poor according to effect. Current starlight level video camera, based on 1080P resolution, is all based on 1/2 " left and right sensor, and the 300W video camera of main flow is all based on 1/3 on the market " sensor, naturally be difficult to night obtain low photograph effect. And the sensor size that the present invention adopts is 2/3 " left and right, low effect of shining is better than prior art naturally, is the combination of high-resolution and starlight level technology, overcomes the low drawback according to weak effect.
Invent and ensure the airspace between each lens by machinery spacer ring, and be provided with delustring screw thread at machinery spacer ring inwall, can effectively eliminate the veiling glare of camera lens, improve the resolution of camera lens.
The screw thread design of filter ring front-end port, it is simple to user arbitrarily increases and decreases suitable filter lens on camera lens, and filter ring has shade function, can also take into account guarantee and eliminate system edges veiling glare function while improving aesthetic property. The present invention can effectively reduce the bore of eyeglass below so that system can be designed to C interface structure general on the market, increases versatility.
Accompanying drawing explanation
Fig. 1 is the overall structural representation of the present invention.
Fig. 2 is the structural representation of the side of the present invention.
Fig. 3 is the sectional structure schematic diagram of the present invention.
Fig. 4 is the perspective view of the front lens barrel of the present invention.
Fig. 5 is the sectional structure schematic diagram of the front lens barrel of the present invention.
Fig. 6 is the perspective view of the rear lens barrel of the present invention.
Fig. 7 is the sectional structure schematic diagram of the rear lens barrel of the present invention.
Fig. 8 is the perspective view of the body tube of the present invention.
Fig. 9 is the sectional structure schematic diagram of the body tube of the present invention.
Figure 10 is the structural representation of the rosette of the present invention.
Figure 11 is the sectional structure schematic diagram of the rosette of the present invention.
Figure 12 is the perspective view of the focusing handwheel of the present invention.
Figure 13 is the sectional structure schematic diagram of the focusing handwheel of the present invention.
Figure 14 is the perspective view of the aperture handwheel of the present invention.
Figure 15 is the structural representation of the retainer ring of the present invention.
Figure 16 is the structural representation of the filter ring of the present invention.
Figure 17 is the structural representation of first pressure ring of the present invention.
Figure 18 is the perspective view of the light ring support of the present invention.
Figure 19 is the sectional structure schematic diagram of the light ring support of the present invention.
Figure 20 is the structural representation of the interface of the present invention.
Figure 21 is the sectional structure schematic diagram of the interface of the present invention.
Figure 22 is the sectional structure schematic diagram of first back-up ring of the present invention.
Figure 23 is the planar structure schematic diagram of the lobe plate of the present invention.
Figure 24 is the side structure schematic diagram of the lobe plate of the present invention.
Figure 25 is the structural representation in the diaphragm sheet front of the present invention.
Figure 26 is the diaphragm sheet side structure schematic diagram of the present invention.
Figure 27 is the diaphragm sheet structure schematic diagram of the present invention.
Figure 28 is the structural representation of first eyeglass of the present invention.
Figure 29 is the structural representation of second eyeglass of the present invention.
Figure 30 is the structural representation of the 3rd eyeglass of the present invention.
Figure 31 is the structural representation of the 4th eyeglass of the present invention.
Figure 32 is the structural representation of the 5th eyeglass of the present invention.
Figure 33 is the structural representation of the 6th eyeglass of the present invention.
Figure 34 is the structural representation of the 7th eyeglass of the present invention.
Figure 35 is the structural representation of the 8th eyeglass of the present invention.
Figure 36 is the structural representation of the 9th eyeglass of the present invention.
Figure 37 is the structural representation of the tenth eyeglass of the present invention.
Figure 38 is the structural representation of the 11st eyeglass of the present invention.
Figure 39 is the structural representation of the front optics group of the present invention.
Figure 40 is the structural representation of the rear optics group of the present invention.
In figure: 1 be front lens barrel, 2 be rear lens barrel, 3 be body tube, 4 be rosette, 5 be focusing handwheel, 6 be aperture handwheel, 7 be retainer ring, 8 be filter ring, 9 be light ring support, 10 be interface, 11 be the first pressure ring, 12 be the second pressure ring, 13 be the first packing ring, 16 be lobe plate, 17 be diaphragm sheet, 19 be guide pin, 20 be aperture handwheel banking pin, 21 for focusing handwheel banking pin; C1 is the first eyeglass, C2 to be the second eyeglass, C3 be the 3rd eyeglass, C4 are the 4th eyeglass, C5 to be the 5th eyeglass, C6 be the 6th eyeglass, C7 are the 7th eyeglass, C8 to be the 8th eyeglass, C9 be the 9th eyeglass, C10 are the tenth eyeglass, C11 is the 11st eyeglass, 22 be arc-shaped step, 30 be helical groove, 160 be diaphragm guide nail slot, 161 be lobe plate slip location-plate, 170 be diaphragm guide pin, 70 be notch.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1 to Figure 40, a kind of starlight level road monitoring zoom lens, described road monitoring pick-up lens includes body tube 3, is disposed with front lens barrel 1, diaphragm governor motion and rear lens barrel 2 in described body tube 3 along light direction, it is disposed with the first eyeglass C1, the second eyeglass C2, the 3rd eyeglass C3, the 4th eyeglass C4 and the five eyeglass C5 along light direction in described front lens barrel 1, wherein the first eyeglass C1, the second eyeglass C2 and the four eyeglass C4 are positive selenodont lens, 3rd eyeglass C3 is double concave type lens, 5th eyeglass C5 is lenticular lens, and first eyeglass C1 and the second eyeglass C2 composition contiguity glued group, the 3rd eyeglass C3 and the four eyeglass C4 composition contiguity glued group, it is disposed with the 6th eyeglass C6, the 7th eyeglass C7, the 8th eyeglass C8, the 9th eyeglass C9, the tenth eyeglass C10 and the 11 eyeglass C11 along light direction in described rear lens barrel 2, wherein the 6th eyeglass C6, the 9th eyeglass C9 are lenticular lens, tenth eyeglass C10 is single convex type lens, 7th eyeglass C7 is double concave type lens, 8th eyeglass C8 and the 11 eyeglass C11 is crescent lens, glued group of the 8th eyeglass C8 and the nine eyeglass C9 composition contiguity, front lens barrel 1 is provided externally with the focusing handwheel 5 threadeded with it, and focusing handwheel 5 rotates socket with body tube 3, diaphragm governor motion includes diaphragm sheet 17, lobe plate 16 and light ring support 9, lobe plate 16 and light ring support 9 are rotationally connected, diaphragm sheet 17 is connected by loose slot with lobe plate 16, diaphragm sheet 17 journey curved month type, it is respectively arranged at two ends with a diaphragm guide pin 170, described 2 diaphragm guide pins 170 are separately positioned on the two sides of diaphragm sheet 17, and outwardly convex, lobe plate 16 there is circular open, circular open is provided with radial multiple diaphragm guide nail slot 160, diaphragm guide pin 170 is flexibly connected in diaphragm guide nail slot 160, lobe plate 16 is slidably connected by lobe plate slip location-plate 161 and aperture handwheel 6, aperture handwheel 6 rotates socket with body tube 3, the outer wall of rear lens barrel 2 is provided with arc-shaped step 22, and front lens barrel 1 is fixing with the arc-shaped step 22 of rear lens barrel 2 to be connected.
It is provided with rosette 4 in the middle part of described body tube 3; It is additionally provided with the first packing ring 13 between second eyeglass C2 and the three eyeglass C3;The rear and front end of rear lens barrel 2 is respectively equipped with the first pressure ring 11 and the second pressure ring 12.
Described front lens barrel 1 front end is provided with filter ring 8; The internal perisporium of described filter ring 8 is gradually reduced by stepped inside outward, and the internal perisporium of the front-end port of filter ring 8 is provided with screw thread.
Described body tube 3 is externally provided with retainer ring 7, is provided with a notch 70 in retainer ring, and notch 70 position that body tube 3 is positioned at corresponding retainer ring 7 is provided with guide pin 19; 6th eyeglass C6, be provided with between the 7th eyeglass C7 and the 8th eyeglass C8 machinery spacer ring.
Jiao >=12.5mm after the flange of described starlight level road monitoring zoom lens, burnt 12.82mm after optics; Focal length is 35mm �� 2mm, and the angle of visual field is 36 �� �� 1.8 ��.
Described aperture handwheel 6 by aperture handwheel banking pin 20 and body tube 3 carry out rotating spacing; Focusing handwheel 5 by focusing handwheel banking pin 21 and body tube 3 carry out rotating spacing; Rear lens barrel 2 is additionally provided with interface 10.
Described diaphragm sheet 17 is lamellar, falcate, and its outward flange radius is 29 �� 0.03mm, and inner edges radius is 20.6 �� 0.03mm, and the folding angle [alpha] of two diaphragm guide pin 170 is 138 �� �� 6 ��; Diaphragm guide pin 170 is and the copper post of diaphragm sheet 17 riveted.
The S1 curvature radius of described first eyeglass C1 is 23.032mm, S2 curvature radius is 49.48mm, and refractive index is 1.755205 �� 50X10-5, abbe number is 27.54 �� 0.8%, and effective diameter is 31mm, and lens center thickness D1 is 5 �� 0.02; The S3 curvature radius of the second eyeglass C2 is 49.48mm, S4 curvature radius is 14.457mm, and refractive index is 1.523074 �� 50X10-5, abbe number is 58.658 �� 0.8%, and effective diameter is 31.1mm, and lens center thickness D2 is 2.2 �� 0.02; The S5 curvature radius of the 3rd eyeglass C3 is-24.608mm, and S6 curvature radius is 20.398mm, and refractive index is 1.846670 �� 50X10-5, abbe number is 23.791 �� 0.8%, and effective diameter is 18.6mm, and lens center thickness D3 is 2.3 �� 0.02; The S7 curvature radius of the 4th eyeglass C4 is 20.398mm, S8 curvature radius is 198.437mm, and refractive index is 1.744004 �� 50X10-5, abbe number is 44.904 �� 0.8%, and effective diameter is 20.6mm, and lens center thickness D4 is 4.5 �� 0.02; The S9 curvature radius of the 5th eyeglass C5 is 46.969mm, S10 curvature radius is-29.38mm, and refractive index is 1.496998 �� 50X10-5, abbe number is 81.595 �� 0.8%, and effective diameter is 20mm, and lens center thickness D5 is 5.5 �� 0.02.
The S11 curvature radius of described 6th eyeglass C6 is 39.439mm, S12 curvature radius is-51.155mm, and refractive index is 1.945958 �� 50X10-5, abbe number is 17.944 �� 0.8%, and effective diameter is 22.2mm, and lens center thickness D5 is 12.8 �� 0.02; The S13 curvature radius of the 7th eyeglass C7 is-44.344mm, and S14 curvature radius is 26.51mm, and refractive index is 1.728250 �� 50X10-5, abbe number is 28.315 �� 0.8%, and effective diameter is 22.2mm, and lens center thickness D5 is 2 �� 0.02; The S15 curvature radius of the 8th eyeglass C8 is 50.729mm, S16 curvature radius is-21.569mm, and refractive index is 1.846670 �� 50X10-5, abbe number is 23.791 �� 0.8%, and effective diameter is 22.4mm, and lens center thickness D5 is 1.6 �� 0.02; The S7 curvature radius of the 9th eyeglass C9 is 21.569mm, S18 curvature radius is-38.818mm, and refractive index is 1.607381 �� 50X10-5, abbe number is 56.657 �� 0.8%, and effective diameter is 23.1mm, and lens center thickness D5 is 8.2 �� 0.02;The S19 curvature radius of the tenth eyeglass C10 is 25.651mm, S20 curvature radius is infinitely great, and refractive index is 1.617203 �� 50X10-5, abbe number is 53.928 �� 0.8%, and effective diameter is 20.4mm, and lens center thickness D5 is 19.5 �� 0.02; The S21 curvature radius of the 11st eyeglass C11 is 27.959mm, S22 curvature radius is 15.4mm, and refractive index is 1.785901 �� 50X10-5, abbe number is 44.207 �� 0.8%, and effective diameter is 18.5mm, and lens center thickness D5 is 2.1 �� 0.02.
The present invention designs independent diaphragm chip architecture, closely can not take into account optimization processing, assembly technology, and can promote processing, efficiency of assembling.
The present invention arranges that focusing governor motion is preposition, and diaphragm governor motion is rearmounted, contributes to the consistent coordination of the rational deployment of structure and overall ratio. Focusing governor motion adopts the positive and negative thread of different lead to grind cooperation and focuses, spacing to rear lens cone seat and body tube by banking pin, arc-shaped step, when rotating focusing handwheel 5, after making focusing handwheel 5 drive front lens barrel 1 relatively, lens barrel 2 moves in a circle and trace quantity helix advances or retreats, focusing action accurately, reliable, without clamping stagnation.
The diaphragm Principles of Regulation of the present invention are: aperture handwheel 6 is rotated through lobe plate 16 and drives diaphragm guide pin and then drive diaphragm sheet 17 to rotate relative to rear lens barrel 2, specifically, lobe plate 16 stirs diaphragm guide pin 170 by diaphragm guide nail slot 160, and then drive the aperture of independent variable diaphragm to regulate device rotation, thus reaching independent regulation aperture to open the purpose turned down greatly.
Embodiment described above is only that the preferred embodiment of the present invention is described; not the spirit and scope of the present invention are defined; without departing under design concept premise of the present invention; various modification that in this area, technical scheme is made by ordinary skill technical staff and improvement; all should falling into protection scope of the present invention, the technology contents that the present invention is claimed all is recorded in detail in the claims.
Claims (9)
1. a starlight level road monitoring zoom lens, described road monitoring pick-up lens includes body tube (3), it is characterised in that: front lens barrel (1), diaphragm governor motion and rear lens barrel (2) it is disposed with in described body tube (3) along light direction, it is disposed with the first eyeglass (C1) along light direction in described front lens barrel (1), second eyeglass (C2), 3rd eyeglass (C3), 4th eyeglass (C4) and the 5th eyeglass (C5), wherein the first eyeglass (C1), second eyeglass (C2) and the 4th eyeglass (C4) are positive selenodont lens, 3rd eyeglass (C3) is double concave type lens, 5th eyeglass (C5) is lenticular lens, and first eyeglass (C1) and the second eyeglass (C2) composition contiguity glued group, 3rd eyeglass (C3) and the 4th eyeglass (C4) form glued group of contiguity, it is disposed with the 6th eyeglass (C6) along light direction in described rear lens barrel (2), 7th eyeglass (C7), 8th eyeglass (C8), 9th eyeglass (C9), tenth eyeglass (C10) and the 11st eyeglass (C11), wherein the 6th eyeglass (C6), 9th eyeglass (C9) is lenticular lens, tenth eyeglass (C10) is single convex type lens, 7th eyeglass (C7) is double concave type lens, 8th eyeglass (C8) and the 11st eyeglass (C11) are crescent lens, 8th eyeglass (C8) and the 9th eyeglass (C9) form glued group of contiguity, front lens barrel (1) is provided externally with the focusing handwheel (5) threadeded with it, and focusing handwheel (5) rotates socket with body tube (3),Diaphragm governor motion includes diaphragm sheet (17), lobe plate (16) and light ring support (9), lobe plate (16) and light ring support (9) are rotationally connected, diaphragm sheet (17) is connected by loose slot with lobe plate (16), diaphragm sheet (17) journey curved month type, it is respectively arranged at two ends with a diaphragm guide pin (170), described 2 diaphragm guide pins (170) are separately positioned on the two sides of diaphragm sheet (17), and outwardly convex, lobe plate has circular open on (16), circular open is provided with radial multiple diaphragm guide nail slot (160), diaphragm guide pin (170) is flexibly connected in diaphragm guide nail slot (160), lobe plate (16) is slidably connected by slide location-plate (161) and aperture handwheel (6) of lobe plate, aperture handwheel (6) rotates socket with body tube (3), the outer wall of rear lens barrel (2) is provided with arc-shaped step (22), and front lens barrel (1) is fixing with the arc-shaped step (22) of rear lens barrel (2) to be connected.
2. starlight level road monitoring zoom lens according to claim 1, it is characterised in that described body tube (3) middle part is provided with rosette (4); It is additionally provided with the first packing ring (13) between second eyeglass (C2) and the 3rd eyeglass (C3); The rear and front end of rear lens barrel (2) is respectively equipped with the first pressure ring (11) and the second pressure ring (12).
3. starlight level road monitoring zoom lens according to claim 1, it is characterised in that described front lens barrel (1) front end is provided with filter ring (8); The internal perisporium of described filter ring (8) is gradually reduced by stepped inside outward, and the internal perisporium of the front-end port of filter ring (8) is provided with screw thread.
4. starlight level road monitoring zoom lens according to claim 1, it is characterized in that described body tube (3) is externally provided with retainer ring (7), being provided with a notch (70) in retainer ring, notch (70) position that body tube (3) is positioned at corresponding retainer ring (7) is provided with guide pin (19); 6th eyeglass (C6), be provided with between the 7th eyeglass (C7) and the 8th eyeglass (C8) machinery spacer ring.
5. starlight level road monitoring zoom lens according to claim 1, it is characterised in that Jiao >=12.5mm after the flange of described starlight level road monitoring zoom lens, burnt 12.82mm after optics; Focal length is 35mm �� 2mm, and the angle of visual field is 36 �� �� 1.8 ��.
6. starlight level road monitoring zoom lens according to claim 1, it is characterised in that described aperture handwheel (6) by aperture handwheel banking pin (20) and body tube (3) carry out rotating spacing; Focusing handwheel (5) by focusing handwheel banking pin (21) and body tube (3) carry out rotating spacing; Rear lens barrel (2) is additionally provided with interface (10).
7. starlight level road monitoring zoom lens according to claim 1, it is characterized in that described diaphragm sheet (17) is lamellar, falcate, its outward flange radius is 29 �� 0.03mm, inner edges radius is 20.6 �� 0.03mm, and the folding angle [alpha] of two diaphragm guide pin (170) is 138 �� �� 6 ��; Diaphragm guide pin (170) is and the copper post of diaphragm sheet (17) riveted.
8. starlight level road monitoring zoom lens according to claim 1, it is characterised in that the S1 curvature radius of described first eyeglass (C1) is 23.032mm, S2 curvature radius is 49.48mm, and refractive index is 1.755205 �� 50X10-5, abbe number is 27.54 �� 0.8%, and effective diameter is 31mm, and lens center thickness D1 is 5 �� 0.02; The S3 curvature radius of the second eyeglass (C2) is 49.48mm, S4 curvature radius is 14.457mm, and refractive index is 1.523074 �� 50X10-5, abbe number is 58.658 �� 0.8%, and effective diameter is 31.1mm, and lens center thickness D2 is 2.2 �� 0.02;The S5 curvature radius of the 3rd eyeglass (C3) is-24.608mm, and S6 curvature radius is 20.398mm, and refractive index is 1.846670 �� 50X10-5, abbe number is 23.791 �� 0.8%, and effective diameter is 18.6mm, and lens center thickness D3 is 2.3 �� 0.02;
The S7 curvature radius of the 4th eyeglass (C4) is 20.398mm, S8 curvature radius is 198.437mm, and refractive index is 1.744004 �� 50X10-5, abbe number is 44.904 �� 0.8%, and effective diameter is 20.6mm, and lens center thickness D4 is 4.5 �� 0.02; The S9 curvature radius of the 5th eyeglass (C5) is 46.969mm, S10 curvature radius is-29.38mm, and refractive index is 1.496998 �� 50X10-5, abbe number is 81.595 �� 0.8%, and effective diameter is 20mm, and lens center thickness D5 is 5.5 �� 0.02.
9. starlight level road monitoring zoom lens according to claim 1, it is characterised in that the S11 curvature radius of described 6th eyeglass (C6) is 39.439mm, S12 curvature radius is-51.155mm, and refractive index is 1.945958 �� 50X10-5, abbe number is 17.944 �� 0.8%, and effective diameter is 22.2mm, and lens center thickness D5 is 12.8 �� 0.02; The S13 curvature radius of the 7th eyeglass (C7) is-44.344mm, and S14 curvature radius is 26.51mm, and refractive index is 1.728250 �� 50X10-5, abbe number is 28.315 �� 0.8%, and effective diameter is 22.2mm, and lens center thickness D5 is 2 �� 0.02; The S15 curvature radius of the 8th eyeglass (C8) is 50.729mm, S16 curvature radius is-21.569mm, and refractive index is 1.846670 �� 50X10-5, abbe number is 23.791 �� 0.8%, and effective diameter is 22.4mm, and lens center thickness D5 is 1.6 �� 0.02; The S7 curvature radius of the 9th eyeglass (C9) is 21.569mm, S18 curvature radius is-38.818mm, and refractive index is 1.607381 �� 50X10-5, abbe number is 56.657 �� 0.8%, and effective diameter is 23.1mm, and lens center thickness D5 is 8.2 �� 0.02; The S19 curvature radius of the tenth eyeglass (C10) is 25.651mm, S20 curvature radius is infinitely great, and refractive index is 1.617203 �� 50X10-5, abbe number is 53.928 �� 0.8%, and effective diameter is 20.4mm, and lens center thickness D5 is 19.5 �� 0.02; The S21 curvature radius of the 11st eyeglass (C11) is 27.959mm, S22 curvature radius is 15.4mm, and refractive index is 1.785901 �� 50X10-5, abbe number is 44.207 �� 0.8%, and effective diameter is 18.5mm, and lens center thickness D5 is 2.1 �� 0.02.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610232689.XA CN105652417A (en) | 2016-04-14 | 2016-04-14 | Starlight-level road monitoring zoom lens |
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| CN201610232689.XA CN105652417A (en) | 2016-04-14 | 2016-04-14 | Starlight-level road monitoring zoom lens |
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| CN105652417A true CN105652417A (en) | 2016-06-08 |
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| CN113391456A (en) * | 2021-08-16 | 2021-09-14 | 山东省科学院海洋仪器仪表研究所 | Electronic angle mirror that expands of laser initiative formation of image illumination light source |
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