CN208297817U - High-resolution, big image planes, big multiplying power, the infrared confocal optical arrangement it in short focus end - Google Patents
High-resolution, big image planes, big multiplying power, the infrared confocal optical arrangement it in short focus end Download PDFInfo
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- CN208297817U CN208297817U CN201820780789.0U CN201820780789U CN208297817U CN 208297817 U CN208297817 U CN 208297817U CN 201820780789 U CN201820780789 U CN 201820780789U CN 208297817 U CN208297817 U CN 208297817U
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Abstract
The utility model discloses high-resolution, big image planes, big multiplying power, the infrared confocal optical arrangement its in short focus end, it is disposed with from object plane to image planes: the first lens group, the focal length of first lens group is positive, and the first lens group includes the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens；The focal length of second lens group, the second lens group is negative, and the second lens group includes the 7th lens, the 8th lens, the 9th lens and the tenth lens；Diaphragm；The focal length of the third lens group, the third lens group is positive, and the third lens group includes the 11st lens, the 12nd lens, the 13rd lens, the 14th lens and the 15th lens；The focal length of 4th lens group, the 4th lens group is positive, and the 4th lens group includes the 16th lens, the 17th lens and the 18th lens；Sensitive chip.The Optical devices high resolution, image planes of the utility model are big, multiplying power is big, and structure is simple.
Description
[technical field]
The utility model relates to Optical devices more particularly to high-resolution, big image planes, big multiplying power, short focus end are infrared confocal
Optical devices.
[background technique]
Zoom lens is widely applied in daily life, especially the fields such as safety monitoring, to wide-angle and focal length
The camera lens demand of integrated application is increasing.
The direction of Vehicles Collected from Market toward high-resolution and super large multiplying power is developed, and in order to obtain better image quality, uses picture
Vegetarian refreshments is bigger, and the more chips of pixel are one of the fundamental ways solved the problems, such as, but current safety monitoring, monitoring road conditions
Device has the following disadvantages:
1. short focus end is not infrared confocal, when having part lighting at night, the picture of shooting can not be integrally clear, always
There is segment angle stamping die paste；The big universal pixel of multiplying power camera lens is low in the market, and resolution ratio is mainly 720P and 1080P；
2. the chip that mainstream monitoring camera currently on the market uses is relatively small, the pixel of chip is smaller, 1080P's
Camera lens image planes are mainly 1/2.8 ", use effectively imaging face diagonal 6.2mm 1/2.8 " CMOS chip, pixel
Size only has 2.8 μm, and resolution ratio is not very high；In dark conditions, shooting image quality is bad；
3. common zoom lens can not often accomplish that big multiplying power is compatible with volume, multiplying power increases can cause lens body simultaneously
Long-pending change dramatically, the monitoring camera for being greater than zoom and reaching 50 times currently on the market, maximum caliber are generally higher than 100mm；
4. the more powerful camera lens of current direct current focal length end using when it is easy to appear camera lens shake and be difficult to shoot
To stable picture, therefore there is an urgent need to camera lenses stabilization function；
5. how non-red current monitoring camera needs, the monitoring camera on field infrared confocal with visible light in wide-angle side demand,
Outer confocal camera lens, when having part lighting at night, the picture of shooting can not be integrally clear, always has obscure portions, has
Camera lens can be such that purple boundary increases accomplishing infrared confocal.
Therefore, the utility model is based on above deficiency and generates.
[utility model content]
The technical problem to be solved by the present invention is to provide high-resolution, big image planes, big multiplying power, short focus end are infrared confocal
And it is greater than 75 times of continuous zooming optical devices with optical anti-vibration；The device high resolution, image planes are big, multiplying power is big, structure letter
It is single.
In order to solve the above technical problems, the utility model uses following technical proposals: high-resolution, big image planes, big times
Rate, the infrared confocal optical arrangement it in short focus end, which is characterized in that be disposed with from object plane to image planes:
It the first fixed lens group of image planes, the focal length of the first lens group can be positive relatively, the first lens group includes from object
The first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens that face to image planes are set gradually；
The second lens group that the opposite image planes of energy are moved forward and backward, the focal length of the second lens group are negative, and the second lens group includes
The 7th lens, the 8th lens, the 9th lens and the tenth lens set gradually from object plane to image planes；
Diaphragm；
It the fixed the third lens group of image planes, the focal length of the third lens group can be positive relatively, the third lens group includes from object
The 11st lens, the 12nd lens, the 13rd lens, the 14th lens and the 15th lens that face to image planes are set gradually；
The 4th lens group that the opposite image planes of energy are moved forward and backward, the focal length of the 4th lens group are positive, and the 4th lens group includes
The 16th lens, the 17th lens and the 18th lens set gradually from object plane to image planes；
Sensitive chip.
High-resolution, big image planes, big multiplying power, the infrared confocal optical arrangement it in short focus end as described above, which is characterized in that institute
It states first focal length of lens to be negative, the first lens are falcate structure, and concave surface is towards sensitive chip direction；The focal length of second lens
It is positive, two faces of the second lens are convex surface, and the focal length of the third lens is positive, and the third lens are falcate structure, and the 4th thoroughly
The focal length of mirror is positive, and the 4th lens are falcate structure, and the focal length of the 5th lens is negative, and the 5th lens are falcate structure, and
Concave surface is positive towards sensitive chip direction, the focal length of the 6th lens, and the 6th lens are curved month type structure；First lens and institute
It states the second lens to bond by optical glue, the 5th lens and the 6th lens are bonded by optical glue.
High-resolution, big image planes, big multiplying power, the infrared confocal optical arrangement it in short focus end as described above, which is characterized in that the
The focal length of seven lens is negative, and is curved month type structure, and the focal length of the 8th lens is negative, and is curved month type structure, the 9th lens
Focal length is negative, and two faces of the 9th lens are concave surface, and the focal length of the tenth lens is positive, and two faces of the tenth lens are
Convex surface；9th lens and the tenth lens are bonded by optical glue.
High-resolution, big image planes, big multiplying power, the infrared confocal optical arrangement it in short focus end as described above, which is characterized in that the
The focal length of 11 lens is positive, and two faces of the 11st lens are convex surface；The focal length of 12nd lens is positive, and the 12nd
Two faces of lens are convex surface, and the focal length of the 13rd lens is negative, and the focal length of the 14th lens is positive, the coke of the 15th lens
Away from being negative；12nd lens and the 13rd lens are bonded by optical glue, the 14th lens and the 15th
Lens are bonded by optical glue.
High-resolution, big image planes, big multiplying power, the infrared confocal optical arrangement it in short focus end as described above, which is characterized in that the
The focal length of 16 lens is positive, and the focal length of the 17th lens is negative, and the focal length of the 18th lens is positive；Described 16th thoroughly
Mirror and the 17th lens are bonded by optical glue.
High-resolution, big image planes, big multiplying power, the infrared confocal optical arrangement it in short focus end as described above, which is characterized in that institute
The first lens for stating, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the 9th lens, the tenth lens,
12nd lens, the 13rd lens, the 14th lens, the 15th lens, the 16th lens and the 17th lens are glass marble
Face lens, the 7th lens, the 8th lens, the 11st lens and the 18th lens are glass aspheric lenses.
High-resolution, big image planes, big multiplying power, the infrared confocal optical arrangement it in short focus end as described above, which is characterized in that institute
The aspherical surface shape of the 7th lens, the 8th lens, the 11st lens and the 18th lens stated meets equation:
Parameter c is curvature corresponding to radius in aforesaid equation, and r is its unit of radial coordinate and length of lens unit phase
Together, k is circular cone whose conic coefficient, α1To α8Respectively indicate coefficient corresponding to each radial coordinate；When k-factor is less than -1, thoroughly
The face shape curve of mirror is hyperbola；When k-factor is equal to -1, the face shape curve of lens is parabola；When k-factor is between -1 to 0
Between when, the face shape curves of lens is ellipse, and when k-factor is equal to 0, the face shape curve of lens is circle, when k-factor is greater than 0
When, the face shape curve of lens is oblateness.
High-resolution, big image planes, big multiplying power, the infrared confocal optical arrangement it in short focus end as described above, which is characterized in that institute
The second lens group stated is 0~145mm with respect to the moving range of sensitive chip, and the 4th lens group is with respect to sensitive chip
Moving range is 0~66mm, and the diaphragm is 50mm, first lens group and the third lens at a distance from sensitive chip
The distance of group is 143mm.
Compared with prior art, the high-resolution of the utility model, big image planes, big multiplying power, the infrared confocal optics in short focus end
Device achieving the following effects:
1, the utility model has used 4 lens groups, with the second lens group between the first lens group, three lens groups before
After move, focal length changes, and the 4th lens group is for focusing, and focal length can change between 13.5mm-1020mm, zoom ratio
Reach 75 times or more, change between 28 ° to 0.4 ° of shooting angle level, shooting distance to 1m, is suitble in a variety of contexts recently
It uses；
2, the utility model can reach the resolution ratio higher than 5M (5,000,000 pixel of pixel), with the 1/1.8 " of 8.9mm
For CCD, the utility model can achieve center resolution higher than 250lp/mm, periphery 0.8H (80% diagonal positions) position
High resolution is in 160lp/mm.
3, the 11st lens of the utility model Optical devices can be mobile in perpendicular, and camera lens is trembled at focal length end
When dynamic, image planes can be compensated, at focal length 600mm, the amount of movement of the 11st lens 0.25mm, the offset amount of picture is
0.255mm basically reaches the compensating proportion of 1:1, and has the airspace greater than 7mm after the 11st lens, to stabilization component
Installation reserves Maximum Space, plays the effectiveness of stabilization to greatest extent；
4, it is infrared confocal to realize short focus end for utility model device, in visible wavelength section 430nm-650nm and infrared waves
Long section 830nm-870nm can reach imaging clearly simultaneously, and multi-wavelength light source big in field range there are in the environment of it is whole
A imaging picture is clear；
5, the utility model whole device many places are used cooperatively and aspherical using simple lens and balsaming lens, are not only disappeared
In addition to the color difference of whole device, the aberration of whole device is also balanced well；
6, certain vignetting is arranged in the utility model, in the case where not influencing illumination, moreover it is possible to periphery spurious rays are blocked,
While making image plane center high resolution, also there is very high resolution ratio at edge.
7, two pieces of cemented doublets are used continuously in the third lens group of the utility model, greatly eliminate camera lens color difference, so that
Camera lens eliminates the shortwaves aberrations such as purple boundary in the case where infrared confocal.
[Detailed description of the invention]
Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing, in which:
Fig. 1 is the structural schematic diagram of the utility model.
[specific embodiment]
It elaborates with reference to the accompanying drawing to the embodiments of the present invention.
As shown in Figure 1, high-resolution, big image planes, big multiplying power, the infrared confocal optical arrangement it in short focus end, from object plane to image planes
It is disposed with:
Can the first fixed lens group 1 of opposite image planes, the focal length of the first lens group 1 be positive, the first lens group 1 include from
The first lens 101 that object plane to image planes are set gradually, the second lens 102, the third lens 103, the 4th lens 104, the 5th lens
105 and the 6th lens 106；
The second lens group 2 that the opposite image planes of energy are moved forward and backward, the focal length of the second lens group 2 are negative, and the second lens group 2 includes
There are the 7th lens 201, the 8th lens 202, the 9th lens 203 and the tenth lens 204 set gradually from object plane to image planes；
Diaphragm 6；Before diaphragm 6 is fixed on the third lens group 3, become according in different focal lengths and environment lower relative aperture size
Change；
Can the fixed the third lens group 3 of opposite image planes, the focal length of the third lens group 3 be positive, the third lens group 3 include from
The 11st lens 301, the 12nd lens 302, the 13rd lens 303,304 and of the 14th lens that object plane to image planes are set gradually
15th lens 305；
The 4th lens group 4 that the opposite image planes of energy are moved forward and backward, the focal length of the 4th lens group 4 are positive, and the 4th lens group 4 includes
There are the 16th lens 401, the 17th lens 402 and the 18th lens 403 set gradually from object plane to image planes；
Sensitive chip 5.
This Optical devices is made of 18 pieces of eyeglasses, wherein 14 pieces of glass spheric glasses and 4 pieces of Glass aspheric eyeglasses.
As shown in Figure 1, in the present embodiment, 101 focal length of the first lens is negative, the first lens 101 are falcate knot
Structure, and concave surface is towards 5 direction of sensitive chip；The focal length of second lens 102 is positive, and two faces of the second lens 102 are convex surface,
The focal length of the third lens 103 is positive, and the third lens 103 are falcate structure, and the focal length of the 4th lens 104 is positive, the 4th lens
104 be falcate structure, and the focal length of the 5th lens 105 is negative, and the 5th lens 105 are falcate structure, and concave surface is towards photosensitive
5 direction of chip, the focal length of the 6th lens 106 are positive, and the 6th lens 106 are curved month type structure；First lens 101 with it is described
Second lens 102 are bonded by optical glue, and the 5th lens 105 are bonded with the 6th lens 106 by optical glue,
Adhesive surface bends towards diaphragm, and spherical aberration and the sine that can correct high power position are poor.
It as shown in Figure 1, in the present embodiment, the focal length of the 7th lens 201 is negative, and is curved month type structure, the 8th lens
202 focal length is negative, and is curved month type structure, and the focal length of the 9th lens 203 is negative, and two faces of the 9th lens 203 are
The focal length of concave surface, the tenth lens 204 is positive, and two faces of the tenth lens are convex surface；9th lens 203 and described the
Ten lens 204 are bonded by optical glue.
As shown in Figure 1, in the present embodiment, the focal length of the 11st lens 301 is positive, and two of the 11st lens 301
Face is convex surface；The focal length of 12nd lens 302 is positive, and two faces of the 12nd lens 302 are convex surface, the 13rd lens
303 focal length is negative, and the focal length of the 14th lens 304 is positive, and the focal length of the 15th lens 305 is negative；12nd lens
302 are bonded with the 13rd lens 303 by optical glue, and the 14th lens 304 and the 15th lens 305 pass through light
Learn glue bonding.
As shown in Figure 1, in the present embodiment, the focal length of the 16th lens 401 is positive, the focal length of the 17th lens 402 is
Negative, the focal length of the 18th lens 403 is positive；16th lens 401 and the 17th lens 402 are viscous by optical glue
It closes.
As shown in Figure 1, in the present embodiment, first lens 101, the second lens 102, the third lens the 103, the 4th
Lens 104, the 5th lens 105, the 6th lens 106, the 9th lens 203, the tenth lens 204, the 12nd lens the 302, the 13rd
Lens 303, the 14th lens 304, the 15th lens 305, the 16th lens 401 and the 17th lens 402 are glass spherical surface
Lens, the 7th lens 201, the 8th lens 202, the 11st lens 301 and the 18th lens 403 are Glass aspheric
Lens.
As shown in Figure 1, in the present embodiment, the 7th lens 201, the 8th lens 202,301 and of the 11st lens
The aspherical surface shape of 18th lens 403 meets equation:
Parameter c is curvature corresponding to radius in aforesaid equation, and r is its unit of radial coordinate and length of lens unit phase
Together, k is circular cone whose conic coefficient, α1To α8Respectively indicate coefficient corresponding to each radial coordinate；When k-factor is less than -1, thoroughly
The face shape curve of mirror is hyperbola；When k-factor is equal to -1, the face shape curve of lens is parabola；When k-factor is between -1 to 0
Between when, the face shape curves of lens is ellipse, and when k-factor is equal to 0, the face shape curve of lens is circle, when k-factor is greater than 0
When, the face shape curve of lens is oblateness.
As shown in Figure 1, in the present embodiment, the moving range of the opposite sensitive chip 5 of the second lens group 2 is 0~
The moving range of 145mm, the opposite sensitive chip 5 of the 4th lens group 4 are 0~66mm, the diaphragm 6 and sensitive chip
5 distance is 50mm, and first lens group 1 is 143mm at a distance from the third lens group 3.
The actual design case of the zoom is set forth below:
Zoom moving range between lens group:
The moving range of second lens group is 145mm；
The moving range of 4th lens group is 64.0mm；
The distance between diaphragm and sensitive chip are 145.6mm；
The distance of first lens group and the third lens group is 173.5mm.
The zoom lens of the utility model has used 4 lens groups, as the second lens group is saturating in the first lens group, third
It is moved forward and backward between microscope group, focal length changes, and for focusing, focal length can become the 4th lens group between 13.5mm-1020mm
Change, zoom ratio reaches 75 times or more, changes between 28 ° to 0.4 ° of shooting angle level, shooting distance to 1m, is suitble to recently
It is used under a variety of environment；
The utility model can reach the resolution ratio higher than 5M (5,000,000 pixel of pixel), with the 1/1.8 " of 8.9mm CCD
For, the utility model can achieve center resolution higher than 250lp/mm, (80% diagonal positions) position periphery 0.8H point
Resolution is higher than 160lp/mm.
11st lens of the utility model Optical devices can be mobile in perpendicular, and camera lens is shaken at focal length end
When, image planes can be compensated, at focal length 600mm, the amount of movement of the 11st lens 0.25mm, the offset amount of picture is
0.255mm, basically reaches the compensating proportion of 1:1, and the airspace after the 11st lens can maximum reserve 7mm, give stabilization
The installation of component reserves Maximum Space, plays the effectiveness of stabilization to greatest extent；
For the entire camera lens of the utility model using the first lens group as highest point, the distance of the first lens group and image plane is fixed
, maximum height is less than 360mm；
It is infrared confocal that utility model device realizes short focus end, in visible wavelength section 430nm-650nm and infrared wavelength
Section 830nm-870nm can reach imaging clearly simultaneously, in the environment of and multi-wavelength light source big in field range exists entirely
It is clear that picture is imaged；
The utility model whole device many places are used cooperatively and aspherical using simple lens and balsaming lens, are not only eliminated
The color difference of whole device, also balances the aberration of whole device well；
Certain vignetting is arranged in the utility model, in the case where not influencing illumination, moreover it is possible to block periphery spurious rays, make
While image plane center high resolution, also there is very high resolution ratio at edge.
Two pieces of cemented doublets are used continuously in the third lens group of the utility model, camera lens color difference are greatly eliminated, so that mirror
Head eliminates the shortwaves aberrations such as purple boundary in the case where infrared confocal.
Claims (8)
1. high-resolution, big image planes, big multiplying power, the infrared confocal optical arrangement it in short focus end, which is characterized in that from object plane to image planes according to
It is secondary to be provided with
It fixed the first lens group (1) of image planes, the focal length of the first lens group (1) can be positive relatively, the first lens group (1) includes
The first lens (101), the second lens (102), the third lens (103), the 4th lens set gradually from object plane to image planes
(104), the 5th lens (105) and the 6th lens (106)；
The second lens group (2) that the opposite image planes of energy are moved forward and backward, the focal length of the second lens group (2) are negative, the second lens group (2) packet
Include the 7th lens (201), the 8th lens (202), the 9th lens (203) and the tenth lens set gradually from object plane to image planes
(204)；
Diaphragm (6)；
It the fixed the third lens group (3) of image planes, the focal length of the third lens group (3) can be positive relatively, the third lens group (3) includes
The 11st lens (301), the 12nd lens (302), the 13rd lens (303), the 14th set gradually from object plane to image planes
Lens (304) and the 15th lens (305)；
The 4th lens group (4) that the opposite image planes of energy are moved forward and backward, the focal length of the 4th lens group (4) are positive, the 4th lens group (4) packet
Include the 16th lens (401), the 17th lens (402) and the 18th lens (403) set gradually from object plane to image planes；
Sensitive chip (5).
2. high-resolution according to claim 1, big image planes, big multiplying power, the infrared confocal optical arrangement it in short focus end, feature
It is, the first lens (101) focal length is negative, and the first lens (101) are falcate structure, and concave surface is towards sensitive chip
(5) direction；The focal length of second lens (102) is positive, and two faces of the second lens (102) are convex surface, the third lens (103)
Focal length is positive, and the third lens (103) are falcate structure, and the focal length of the 4th lens (104) is positive, and the 4th lens (104) are curved
Month shape structure, the focal length of the 5th lens (105) are negative, and the 5th lens (105) are falcate structure, and concave surface is towards sensitive chip
(5) focal length in direction, the 6th lens (106) is positive, and the 6th lens (106) are curved month type structure；First lens (101) with
Second lens (102) are bonded by optical glue, and the 5th lens (105) and the 6th lens (106) pass through light
Learn glue bonding.
3. high-resolution according to claim 1, big image planes, big multiplying power, the infrared confocal optical arrangement it in short focus end, feature
It is, the focal length of the 7th lens (201) is negative, and is curved month type structure, and the focal length of the 8th lens (202) is negative, and is bent moon
The focal length of type structure, the 9th lens (203) is negative, and two faces of the 9th lens (203) are concave surface, the tenth lens (204)
Focal length be positive, and two faces of the tenth lens are convex surface；9th lens (203) and the tenth lens (204) are logical
Cross optical glue bonding.
4. high-resolution according to claim 1, big image planes, big multiplying power, the infrared confocal optical arrangement it in short focus end, feature
It is, the focal length of the 11st lens (301) is positive, and two faces of the 11st lens (301) are convex surface；12nd lens
(302) focal length is positive, and two faces of the 12nd lens (302) are convex surface, and the focal length of the 13rd lens (303) is negative,
The focal length of 14th lens (304) is positive, and the focal length of the 15th lens (305) is negative；12nd lens (302) with it is described
13rd lens (303) are bonded by optical glue, and the 14th lens (304) and the 15th lens (305) pass through optics
Glue bonding.
5. high-resolution according to claim 1, big image planes, big multiplying power, the infrared confocal optical arrangement it in short focus end, feature
It is, the focal length of the 16th lens (401) is positive, and the focal length of the 17th lens (402) is negative, the 18th lens (403)
Focal length be positive；16th lens (401) and the 17th lens (402) are bonded by optical glue.
6. high-resolution according to claim 1, big image planes, big multiplying power, the infrared confocal optical arrangement it in short focus end, feature
It is, first lens (101), the second lens (102), the third lens (103), the 4th lens (104), the 5th lens
(105), the 6th lens (106), the 9th lens (203), the tenth lens (204), the 12nd lens (302), the 13rd lens
(303), the 14th lens (304), the 15th lens (305), the 16th lens (401) and the 17th lens (402) are glass
Glass spherical lens, the 7th lens (201), the 8th lens (202), the 11st lens (301) and the 18th lens (403)
It is glass aspheric lenses.
7. high-resolution according to claim 6, big image planes, big multiplying power, the infrared confocal optical arrangement it in short focus end, feature
It is, the aspheric of the 7th lens (201), the 8th lens (202), the 11st lens (301) and the 18th lens (403)
Face surface shape meets equation:
Parameter c is curvature corresponding to radius in aforesaid equation, and r is that its unit of radial coordinate is identical with length of lens unit, k
For circular cone whose conic coefficient, α1To α8Respectively indicate coefficient corresponding to each radial coordinate；When k-factor is less than -1, lens
Face shape curve is hyperbola；When k-factor is equal to -1, the face shape curve of lens is parabola；When k-factor is between -1 to 0
When, the face shape curve of lens is ellipse, and when k-factor is equal to 0, the face shape curve of lens is circle, when k-factor is greater than 0, thoroughly
The face shape curve of mirror is oblateness.
8. high-resolution according to claim 1, big image planes, big multiplying power, the infrared confocal optical arrangement it in short focus end, feature
It is, second lens group (2) is 0~145mm, the 4th lens group with respect to the moving range of sensitive chip (5)
(4) moving range of opposite sensitive chip (5) is 0~66mm, and the diaphragm (6) is 50mm at a distance from sensitive chip (5),
First lens group (1) is 143mm at a distance from the third lens group (3).
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| CN201820780789.0U CN208297817U (en) | 2018-05-23 | 2018-05-23 | High-resolution, big image planes, big multiplying power, the infrared confocal optical arrangement it in short focus end |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820780789.0U CN208297817U (en) | 2018-05-23 | 2018-05-23 | High-resolution, big image planes, big multiplying power, the infrared confocal optical arrangement it in short focus end |
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| CN208297817U true CN208297817U (en) | 2018-12-28 |
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ID=64728696
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| CN201820780789.0U Active CN208297817U (en) | 2018-05-23 | 2018-05-23 | High-resolution, big image planes, big multiplying power, the infrared confocal optical arrangement it in short focus end |
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