CN204086662U - Day and night confocal large target surface high definition camera lens - Google Patents

Day and night confocal large target surface high definition camera lens Download PDF

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Publication number
CN204086662U
CN204086662U CN201420534542.2U CN201420534542U CN204086662U CN 204086662 U CN204086662 U CN 204086662U CN 201420534542 U CN201420534542 U CN 201420534542U CN 204086662 U CN204086662 U CN 204086662U
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group
lens
positive
airspace
body tube
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苏青年
屈立辉
刘任重
潘寿恩
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Fujian Forecam Optics Co Ltd
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Fujian Forecam Optics Co Ltd
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Abstract

The utility model relates to one day and night confocal large target surface high definition camera lens, and in the optical system of described camera lens, along light, incident direction is provided with that focal power is positive front fixing group A successively from left to right, focal power is negative zoom group B, focal power be rear fixing group of positive C and focal power is positive compensating group D; The first gummed group that front fixing group A comprises positive selenodont lens A-1, positive selenodont lens A-2 and negative selenodont lens A-3 and biconvex lens A-4 touches; Zoom group B comprises the second gummed group that double concave type lens B-1 and double concave type lens B-2 and lenticular lens B-3 touches; Rear fixing group C comprises the 3rd gummed group of lenticular lens C-1, lenticular lens C-2 and negative selenodont lens C-3 contiguity and positive selenodont lens C-4; The 4th gummed group that compensating group D comprises lenticular lens D-1, negative selenodont lens D-2 and lenticular lens D-3 touches and negative selenodont lens D-4.This lens optical index is high, and resolution is high, can adapt to the requirement of high definition video shooting.

Description

Day and night confocal large target surface high definition camera lens
Technical field
The utility model relates to one day and night confocal large target surface high definition camera lens, belongs to the optical pick-up apparatus field of video technique.
Background technology
Along with traffic network is day by day intensive, traffic is day by day busy, in order to safeguard traffic safety, prevent traffic jam, to realize under busy road conditions in perfect order; For development intelligent transportation system provides a day and night confocal high-resolution camera lens to have realistic meaning.Present zoom lens major part structure is on the market simple, performance index are low, can only be adaptive with the SD CCD of 200-300 ten thousand pixel or cmos camera in the sharpness of image, shooting effect is general, and picture is worth little, can only adapt to the needs that monitoring field " is seen ".Such resolution can not meet the requirement of present high-definition camera far away.
Utility model content
In view of this, it is high that the purpose of this utility model is to provide a kind of optical index, and object lens of large relative aperture, resolution are high, can meet the day and night confocal large target surface high definition camera lens of the requirement of high definition video shooting.
The utility model adopts following scheme to realize: one is confocal large target surface high definition camera lens day and night, and in the optical system of described camera lens, along light, incident direction is provided with that focal power is positive front fixing group A successively from left to right, focal power is negative zoom group B, focal power be rear fixing group of positive C and focal power is positive compensating group D; Iris E is provided with between zoom group B and rear fixing group of C; The first gummed group that before described, fixing group A comprises the positive selenodont lens A-1 set gradually from left to right, positive selenodont lens A-2 and negative selenodont lens A-3 and biconvex lens A-4 touches; Described zoom group B comprises the second gummed group of double concave type lens B-1 and double concave type lens B-2 and the lenticular lens B-3 contiguity set gradually from left to right; Described rear fixing group of C comprises the 3rd gummed group of lenticular lens C-1, lenticular lens C-2 and the negative selenodont lens C-3 contiguity set gradually from left to right and positive selenodont lens C-4; The 4th gummed group that described compensating group D comprises the lenticular lens D-1 set gradually from left to right, negative selenodont lens D-2 and lenticular lens D-3 touches and negative selenodont lens D-4.
Further, the airspace between described front fixing group A and zoom group B is 1.07mm ~ 20.71mm; Airspace between described zoom group B and rear fixing group of C is 3.37mm ~ 23.02mm; Airspace between described rear fixing group of C and compensating group D is 4.56mm ~ 6.86mm; Airspace between described iris E and rear fixing group of C is 2.8mm.
Further, the airspace before described in fixing group A between positive selenodont lens A-1 and positive selenodont lens A-2 is 0.1mm, and the airspace between positive selenodont lens A-2 and the first gummed group is 1.35mm.
Further, the airspace in described zoom group B between double concave type lens B-1 and the second gummed group is 2.01mm.
Further, the airspace in described rear fixing group of C between lenticular lens C-1 and the 3rd gummed group is 0.86mm, and the airspace between the 3rd gummed group and positive selenodont lens C-4 is 0.1mm.
Further, the airspace in described compensating group D between lenticular lens D-1 and the 4th gummed group is 0.1mm, and the airspace between the 4th gummed group and negative selenodont lens D-4 is 1.18mm.
Further, the physical construction of described camera lens comprises outer casing, rear body tube is provided with in described outer casing, outer casing front end is provided with front body tube, in described rear body tube, front portion is arranged with the rear fixing arrangement of mirrors seat being provided with rear fixing group of C, in rear body tube, rear sleeve is provided with transition piece, is arranged with the compensating group microscope base being provided with compensating group D in described transition piece; The front fixing arrangement of mirrors cylinder of fixing group A before described front body tube front end is provided with and is provided with, front body tube internal sleeve is provided with the zoom arrangement of mirrors seat being provided with zoom group B; Automatic CD-ROM drive is provided with between front body tube and rear body tube.
Further, described front body tube periphery is arranged with the front cam with its rotatable engagement, described zoom arrangement of mirrors seat sidepiece is connected with the first guide pin, and the first guide pin drives zoom arrangement of mirrors seat to move forward and backward through stretching into the draw-in groove being located at front cam inner peripheral portion after the helicla flute on front body tube to pass through rotating front cam.
Further, be provided with in described outer casing be set in rear body tube peripheral part and with the rear cam of its rotatable engagement, described transition piece sidepiece is connected with the second guide pin, and the second guide pin moves forward and backward to pass through rotating rear cam driven transition piece through stretching into the draw-in groove being located at rear cam inner peripheral portion after the helicla flute on rear body tube.
Compared with prior art, the utility model has following beneficial effect:
(1) focal power of each arrangement of mirrors sheet before reasonable distribution in the optical texture of this retrofocus type, in fixing group of C, in the prototype of three-chip type Ke Ke type structure, second eyeglass is changed into cemented doublet group, and compensating group D compensates and makes camera lens reach the short performance index of object lens of large relative aperture, high power ratio, structure length.
(2) by select high index of refraction, low dispersion optical material and through meticulous optimal design, the central vision of this kind of camera lens and peripheral field is made all to have high resolving power, and optical distortion is controlled in minimum zone, make the degree of distortion of camera system little.
(3) when optical design, aberration correction and balance are carried out to the wide spectral range of visible ray and near infrared spectral line, make camera lens have excellent picture element at wide spectral range, achieve wide spectral confocal.Camera lens can not only blur-free imaging under photoenvironment in the daytime, night pole low-light (level) or zero illumination environment under also can blur-free imaging by infrared light filling, the monitoring continuously that achieves 24 hours, and when day and night switching not defocusing, focus without the need to scene.
(4) compact conformation, eurythmy, ensure that the stability of product and attractive in appearance, by strictly controlling the dimensional requirement between each cooperation, can realize focusing and zoom is accurate reliably, feel is good.
Accompanying drawing explanation
Fig. 1 is the optical system schematic diagram of the utility model embodiment;
Fig. 2 is the physical construction schematic diagram of the utility model embodiment;
Number in the figure illustrates: 1-first trim ring, body tube before 2-, 3-zoom arrangement of mirrors seat, 4-second trim ring, 5-lenticular lens B-3, 6-double concave type lens B-2, 7-double concave type lens B-1, 8-biconvex lens A-4, 9-bears selenodont lens A-3, 10-positive selenodont lens A-2, 11-positive selenodont lens A-1, 12-first spacer ring, 13-second spacer ring, fixing arrangement of mirrors cylinder before 14-, 15-first countersunk head is followed closely, 16-first guide pin, 17-front cam, nail is dialled before 18-, the automatic CD-ROM drive of 19-, body tube after 20-, 21-second countersunk head is followed closely, cam after 22-, nail is dialled after 23-, 24-second guide pin, 25-the 3rd countersunk head is followed closely, 26-rear cover, 27-turns to shell fragment, 28-transition piece, 29-the 3rd trim ring, 30-lenticular lens D-1, 31-compensating group microscope base, 32-bears selenodont lens D-2, 33-lenticular lens D-3, 34-bears selenodont lens D-4, 35-positive selenodont lens C-4, 36-bears selenodont lens C-3, 37-lenticular lens C-2, 38-the 3rd spacer ring, 39-the 4th trim ring, 40-the 4th spacer ring, arrangement of mirrors seat is fixed after 41-, 42-the 5th spacer ring, 43-lenticular lens C-1, 44-outer casing.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly understand, below by specific embodiment and relevant drawings, the utility model will be described in further detail.
As shown in Figure 1 and 2, one is confocal large target surface high definition camera lens day and night, and in the optical system of described camera lens, along light, incident direction is provided with that focal power is positive front fixing group A successively from left to right, focal power is negative zoom group B, focal power be rear fixing group of positive C and focal power is positive compensating group D; Iris E is provided with between zoom group B and rear fixing group of C; Before described, fixing group A comprises the positive selenodont lens A-1(11 set gradually from left to right), positive selenodont lens A-2(10) and negative selenodont lens A-3(9) and biconvex lens A-4(8) the first gummed group of touching; Described zoom group B comprises the double concave type lens B-1(7 set gradually from left to right) and double concave type lens B-2(6) and lenticular lens B-3(5) the second gummed group of touching; Described rear fixing group of C comprises the lenticular lens C-1(43 set gradually from left to right), lenticular lens C-2(37) and negative selenodont lens C-3(36) the 3rd gummed group of touching and positive selenodont lens C-4(35); Described compensating group D comprises the lenticular lens D-1(30 set gradually from left to right), negative selenodont lens D-2(32) and lenticular lens D-3(33) the 4th gummed group of touching and negative selenodont lens D-4(34), compensating group D compensates and makes camera lens reach the short performance index of object lens of large relative aperture, high power ratio, structure length, this kind of lens combination, be beneficial to and improve camera lens relative aperture, be beneficial to the aberration correction of camera lens, especially the correction of wide spectral aberration.
In the present embodiment, the airspace between described front fixing group A and zoom group B is 1.07mm ~ 20.71mm; Airspace between described zoom group B and rear fixing group of C is 3.37mm ~ 23.02mm; Airspace between described rear fixing group of C and compensating group D is 4.56mm ~ 6.86mm; Airspace between described iris E and rear fixing group of C is 2.8mm.
In the present embodiment, positive selenodont lens A-1(11 in fixing group A before described) and positive selenodont lens A-2(10) between airspace be 0.1mm, positive selenodont lens A-2(10) and the first gummed group between airspace be 1.35mm.
In the present embodiment, double concave type lens B-1(7 in described zoom group B) and the second gummed group between airspace be 2.01mm.
In the present embodiment, lenticular lens C-1(43 in described rear fixing group of C) and the 3rd gummed group between airspace be 0.86mm, the 3rd gummed group and positive selenodont lens C-4(35) between airspace be 0.1mm.
In the present embodiment, lenticular lens D-1(30 in described compensating group D) and the 4th gummed group between airspace be 0.1mm, the 4th gummed group and bear selenodont lens D-4(34) between airspace be 1.18mm.
In the present embodiment, the optical system be made up of above-mentioned lens set reaches following optical index:
(1) focal length: f '=12-50mm;
(2) relative aperture D/F=1/1.5;
(3) field angle 2 ω: 42 ° ~ 11 ° (effective imaging surface n ' >=φ 9mm);
(4) spectral range: 480nm ~ 850nm is suitable for;
(5) resolution: adaptive with the high-definition camera of 6,000,000 pixels;
(6) light path overall length ∑ L≤86.5mm.
This is confocal large target surface high definition camera lens reasonable selection optical glass material day and night, selects the optical glass material of high index of refraction, low dispersion as far as possible.By area of computer aided optical design and optimization, correct the various aberrations of optical lens perfectly, make the resolution of camera lens high, the requirement of 6,000,000 pixel high definition video shootings can be adapted to.This lens optical index is high, and optics target surface is large, and resolution equals the high definition day and night confocal camera lens of six mega pixels, can " video camera of high definition supports the use with 16:9 standard 1/1.8.Camera system is realized the requirement of scenery at the high definition pick-up of high photokinesis variation range environment.
By select high index of refraction, low dispersion optical material and through meticulous optimal design, make the central vision of this kind of camera lens and peripheral field all have high resolving power, and optical distortion controlled in minimum zone, make the degree of distortion of camera system little.When optical design, aberration correction and balance are carried out to the wide spectral range of visible ray and near infrared spectral line, make camera lens have excellent picture element at wide spectral range, achieve wide spectral confocal.Camera lens can not only blur-free imaging under photoenvironment in the daytime, night pole low-light (level) or zero illumination environment under also can blur-free imaging by infrared light filling, the monitoring continuously that achieves 24 hours, and when day and night switching not defocusing, focus without the need to scene.
In the present embodiment, the physical construction of described camera lens comprises outer casing 44, rear body tube 20 is provided with in described outer casing 44, outer casing 44 front end is provided with front body tube 2, described rear body tube 20 inner chamber front portion is arranged with the rear fixing arrangement of mirrors seat 41 being provided with rear fixing group of C, rear body tube 20 inner chamber rear sleeve is provided with transition piece 28, is arranged with the compensating group microscope base 31 being provided with compensating group D, is threaded connection and coordinates between compensating group microscope base 31 with transition piece 28 in described transition piece 28; The front fixing arrangement of mirrors cylinder 14 of fixing group A before described front body tube 2 front end is provided with and is provided with, front body tube 2 internal sleeve is provided with the zoom arrangement of mirrors seat 3 being provided with zoom group B; Automatic CD-ROM drive 19 is provided with to realize controlling logical light quantity by Energy control iris between front body tube 2 and rear body tube 20.
In the present embodiment, described front body tube 2 periphery is arranged with the front cam 17 with its rotatable engagement, described zoom arrangement of mirrors seat 3 sidepiece is connected with the first guide pin 16, first guide pin 16 drives zoom arrangement of mirrors seat 3 to move forward and backward through stretching into the draw-in groove being located at front cam 17 inner peripheral portion after the helicla flute on front body tube to pass through rotating front cam 17, reaches the object of zoom.
In the present embodiment, be provided with in described outer casing 44 be set in rear body tube 20 peripheral part and with the rear cam 22 of its rotatable engagement, described transition piece 28 sidepiece is connected with the second guide pin 24, second guide pin 24 drives transition piece 28 to move forward and backward through stretching into the draw-in groove being located at rear cam 22 inner peripheral portion after the helicla flute on rear body tube 20 to pass through rotating rear cam 22, reaches the object of focusing.
In the present embodiment, before described, fixing arrangement of mirrors cylinder is fixed on front body tube front end by the first countersunk head nail, is positioned at positive selenodont lens A-1(11 in front fixing arrangement of mirrors cylinder) front side is provided with the first trim ring 1, is positioned at positive selenodont lens A-1(11) and positive selenodont lens A-2(10) between the first spacer ring 12 and be positioned at positive selenodont lens A-2(10) and biconvex lens A-4(8) between the second spacer ring; Before fixing arrangement of mirrors tube rear end be provided with withstand biconvex lens A-4(8) annular flange flange of rear side; Described first trim ring is step-like structure, has both saved material, weight reduction, also can better absorption edge parasitic light.
In the present embodiment, described zoom arrangement of mirrors seat front end is provided with and compresses double concave type lens B-1(7) the second trim ring 4 of front side outer rim, double concave type lens B-1(7) and the second gummed group between come guarantee period airspace by lens contacts face, the annular flange flange of zoom arrangement of mirrors base rear end withstands outer edge on front side of double concave type lens B-2.
In the present embodiment, described rear fixing arrangement of mirrors base rear end be provided with compress positive selenodont lens C-4(35) rear side outer rim the 4th trim ring 39, positive selenodont lens C-4(35) and negative selenodont lens C-3(36) between be provided with the 4th spacer ring 40, lenticular lens C-1(43) and lenticular lens C-2(37) between be provided with the 5th spacer ring, rear fixing arrangement of mirrors seat front end is provided with withstands lenticular lens C-1(43) annular flange flange.
In the present embodiment, described compensating group microscope base front end is provided with and compresses lenticular lens D-1(30) the 3rd trim ring 29, lenticular lens D-1(30) and negative selenodont lens D-2(32) between be provided with the 3rd spacer ring 38, negative selenodont lens D-4(34) withstood by the annular convex shoulder of compensating group microscope base rear end.
In the present embodiment, described outer casing rear end is provided with rear cover; Dial nail 18 before described front cam is connected with, after rear cam is connected with, dial nail 23, to lock front cam and rear cam after having confirmed focal length, prevent gamma camera from moving or touch front cam or rear cam in vibrations process and cause focal length variations.
In the present embodiment, in order to not run burnt situation in rotation or vibrations process, all guide pins adopt copper guide pin, and nylon jacket increases friction force on the cover of guide pin top.Mechanical dimension has done strict control, the tolerance of all mechanical parts internal diameters directly coordinated with eyeglass is all between 0-0.02mm, thus ensure its precision coordinated, guarantee the concentricity of each constituent element of system and accurate, the smooth not clamping stagnation of the action such as zoom, focusing and good hand touch from structural design, ensure that the resolution of peripheral field and central vision is more close.
Above-listed preferred embodiment; the purpose of this utility model, technical scheme and advantage are further described; be understood that; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims (9)

1. a day and night confocal large target surface high definition camera lens, is characterized in that: in the optical system of described camera lens, along light, incident direction is provided with that focal power is positive front fixing group A successively from left to right, focal power is negative zoom group B, focal power be rear fixing group of positive C and focal power is positive compensating group D; Iris E is provided with between zoom group B and rear fixing group of C; The first gummed group that before described, fixing group A comprises the positive selenodont lens A-1 set gradually from left to right, positive selenodont lens A-2 and negative selenodont lens A-3 and biconvex lens A-4 touches; Described zoom group B comprises the second gummed group of double concave type lens B-1 and double concave type lens B-2 and the lenticular lens B-3 contiguity set gradually from left to right; Described rear fixing group of C comprises the 3rd gummed group of lenticular lens C-1, lenticular lens C-2 and the negative selenodont lens C-3 contiguity set gradually from left to right and positive selenodont lens C-4; The 4th gummed group that described compensating group D comprises the lenticular lens D-1 set gradually from left to right, negative selenodont lens D-2 and lenticular lens D-3 touches and negative selenodont lens D-4.
2. day and night confocal large target surface high definition camera lens according to claim 1, is characterized in that: the airspace before described between fixing group A and zoom group B is 1.07mm ~ 20.71mm; Airspace between described zoom group B and rear fixing group of C is 3.37mm ~ 23.02mm; Airspace between described rear fixing group of C and compensating group D is 4.56mm ~ 6.86mm; Airspace between described iris E and rear fixing group of C is 2.8mm.
3. day and night confocal large target surface high definition camera lens according to claim 1 and 2, it is characterized in that: the airspace before described in fixing group A between positive selenodont lens A-1 and positive selenodont lens A-2 is 0.1mm, and the airspace between positive selenodont lens A-2 and the first gummed group is 1.35mm.
4. day and night confocal large target surface high definition camera lens according to claim 1 and 2, is characterized in that: the airspace in described zoom group B between double concave type lens B-1 and the second gummed group is 2.01mm.
5. day and night confocal large target surface high definition camera lens according to claim 1 and 2, it is characterized in that: the airspace in described rear fixing group of C between lenticular lens C-1 and the 3rd gummed group is 0.86mm, the airspace between the 3rd gummed group and positive selenodont lens C-4 is 0.1mm.
6. day and night confocal large target surface high definition camera lens according to claim 1 and 2, it is characterized in that: the airspace in described compensating group D between lenticular lens D-1 and the 4th gummed group is 0.1mm, the airspace between the 4th gummed group and negative selenodont lens D-4 is 1.18mm.
7. day and night confocal large target surface high definition camera lens according to claim 1, it is characterized in that: the physical construction of described camera lens comprises outer casing, rear body tube is provided with in described outer casing, outer casing front end is provided with front body tube, in described rear body tube, front portion is arranged with the rear fixing arrangement of mirrors seat being provided with rear fixing group of C, in rear body tube, rear sleeve is provided with transition piece, is arranged with the compensating group microscope base being provided with compensating group D in described transition piece; The front fixing arrangement of mirrors cylinder of fixing group A before described front body tube front end is provided with and is provided with, front body tube internal sleeve is provided with the zoom arrangement of mirrors seat being provided with zoom group B; Automatic CD-ROM drive is provided with between front body tube and rear body tube.
8. day and night confocal large target surface high definition camera lens according to claim 7, it is characterized in that: described front body tube periphery is arranged with the front cam with its rotatable engagement, described zoom arrangement of mirrors seat sidepiece is connected with the first guide pin, and the first guide pin drives zoom arrangement of mirrors seat to move forward and backward through stretching into the draw-in groove being located at front cam inner peripheral portion after the helicla flute on front body tube to pass through rotating front cam.
9. day and night confocal large target surface high definition camera lens according to claim 7, it is characterized in that: be provided with in described outer casing be set in rear body tube peripheral part and with the rear cam of its rotatable engagement, described transition piece sidepiece is connected with the second guide pin, and the second guide pin moves forward and backward to pass through rotating rear cam driven transition piece through stretching into the draw-in groove being located at rear cam inner peripheral portion after the helicla flute on rear body tube.
CN201420534542.2U 2014-09-18 2014-09-18 Day and night confocal large target surface high definition camera lens Active CN204086662U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104199174A (en) * 2014-09-18 2014-12-10 福建福光数码科技有限公司 Day and night confocal high-definition lens with large target area
CN110119023A (en) * 2019-06-16 2019-08-13 福建福光股份有限公司 6000000 high-resolution zoom camera lenses

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104199174A (en) * 2014-09-18 2014-12-10 福建福光数码科技有限公司 Day and night confocal high-definition lens with large target area
CN104199174B (en) * 2014-09-18 2016-06-15 福建福光股份有限公司 Day and night confocal big target surface high definition camera lens
CN110119023A (en) * 2019-06-16 2019-08-13 福建福光股份有限公司 6000000 high-resolution zoom camera lenses

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Owner name: FUJIAN FORECAM CO., LTD.

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Patentee before: Fujian Forecam Optics Co., Ltd.