CN110007446A - The mega pixel camera lens of the short TTL of the full glass of wide-angle - Google Patents
The mega pixel camera lens of the short TTL of the full glass of wide-angle Download PDFInfo
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- CN110007446A CN110007446A CN201910344239.3A CN201910344239A CN110007446A CN 110007446 A CN110007446 A CN 110007446A CN 201910344239 A CN201910344239 A CN 201910344239A CN 110007446 A CN110007446 A CN 110007446A
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- 239000011521 glass Substances 0.000 title claims abstract description 33
- 125000006850 spacer group Chemical group 0.000 claims description 32
- 230000003287 optical effect Effects 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 10
- 238000004026 adhesive bonding Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 4
- 230000005499 meniscus Effects 0.000 claims description 3
- 238000009738 saturating Methods 0.000 claims description 3
- 235000015170 shellfish Nutrition 0.000 claims 2
- 239000007787 solid Substances 0.000 claims 1
- 238000003384 imaging method Methods 0.000 abstract description 12
- 230000000007 visual effect Effects 0.000 abstract description 12
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 230000004075 alteration Effects 0.000 description 17
- 238000010586 diagram Methods 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004566 IR spectroscopy Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000001429 visible spectrum Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
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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
- G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
-
- 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
-
- 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
- G02B7/026—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using retaining rings or springs
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- Optics & Photonics (AREA)
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Abstract
The present invention relates to the mega pixel camera lenses of the short TTL of the full glass of wide-angle a kind of.Front lens group, light bar and the rear microscope group that the camera lens includes body tube and is set in turn in body tube along light incident direction, front lens group includes the first lens, the second lens and the third lens, second face of the first lens is concave surface, second lens, the third lens total focal length range be 15~40mm, microscope group includes the 4th lens, the 5th lens and the 6th lens afterwards, and the focal range of rear microscope group is 7.5~20mm.The present invention uses four group of six slice structure, field of view angle is up to 160 ° ± 10%, imaging target surface reaches Φ 6.4mm, optics overall length is 10.9mm ± 10%, it is applicable in 1/4 " or more video camera image planes; 70% visual field of disc of confusion is better than 3.2um, and 90% visual field is better than 2.9um, effectively meets the demand in the fields such as reverse image, smart home, safety monitoring.
Description
Technical field
The present invention relates to camera lens field, in particular to the mega pixel camera lens of the short TTL of a kind of full glass of wide-angle is suitable for falling
The fields such as vehicle image, smart home, safety monitoring.
Background technique
With flourishing for intelligent security-protecting and monitoring market, existing security product type is more and more abundant on the market.People
Selectable range it is also increasing, it is desirable that it is also higher and higher.In addition " safety society ", " safety city that government driving is implemented
The major projects such as city " and " 3111 engineering ", all effectively promote the rapid growth of security product.
The optics overall length of Conventional compact camera lens is typically larger than 15mm on the market at present, and the gate inhibition of some ultra-thin types is produced
Product, collocation degree be not high.And day and night confocal performance is not perfect.With the miniaturization of product design, under the requirement of carrying easy to install,
Need the optics overall length of camera lens short as far as possible under conditions of guaranteeing that imaging target surface is constant, field angle is wide as far as possible.It is existing
The product of same type on the market, in order to accomplish that shorter optics overall length would generally use glass lens and the non-concave-sphere of plastics
The structure of piece mixing will lead to easily cause image empty coke when extraneous variation of ambient temperature (- 40 DEG C -80 DEG C) in this way,
The use scope and imaging definition of extreme influence camera lens.
Summary of the invention
The purpose of the present invention is to provide the mega pixel camera lens of the short TTL of the full glass of wide-angle a kind of, which uses four groups
Six slice structures, for field of view angle up to 160 ° ± 10%, imaging target surface reaches Φ 6.4mm, and optics overall length is 10.9mm ± 10%, is fitted
With 1/4 " or more video camera image planes, image quality central vision MTF is better than 140LP/mm > 0.3, and 70% visual field of disc of confusion is better than
3.2um, 90% visual field are better than 2.9um, effectively meet the demand in the fields such as reverse image, smart home, safety monitoring.
The present invention is implemented as follows: the mega pixel camera lens of the short TTL of full glass of wide-angle a kind of, it is characterised in that: the mirror
Head includes body tube and the front lens group, light bar and the rear microscope group that are set in turn in body tube along light incident direction, before described
Microscope group includes the first lens, the second lens and the third lens that setting is arranged successively along light incident direction, and described first thoroughly
Second face of mirror be concave surface, second lens, the third lens total focal length range be 15~40mm, it is described after microscope group include
The 4th lens, the 5th lens and the 6th lens of setting, the focal length model of the rear microscope group are arranged successively along light incident direction
It encloses for 7.5~20mm.
Further, first lens are meniscus lens or double concave type lens, and second lens are positive selenodont
Lens, the third lens be lenticular lens, second lens and the third lens composition contiguity gluing unit, the described 4th
Lens are double concave type lens, and the 5th lens are lenticular lens, and the 6th lens are lenticular lens, and the described 4th thoroughly
The gluing unit of mirror and the 5th lens composition contiguity.
Each lens of the front lens group need to be met the following optical conditions:
1.45 < n1 < 1.55,66 < v1 < 95；
1.7 < n2 < 1.8,20 < v2 < 35；
1.9 < n3 < 2.2,10 < v3 < 20；
Wherein n1-n3 is followed successively by the refractive index of the first lens-the third lens, and v1-v3 is followed successively by the first lens-the third lens
Abbe number；
Each lens of microscope group need to be met the following optical conditions after described:
1.8 < n4 < 2.1,15 < v4 < 20；
1.65 < n5 < 1.95,45 < v5 < 60；
1.6 < n6 < 2,35 < v6 < 55；
Wherein n4-n6 is followed successively by the refractive index of the 4th the-the six lens of lens, and v4-v6 is followed successively by the 4th the-the six lens of lens
Abbe number.
Further, the airspace between first lens and the second lens is 0.637 ± 0.05mm；The third
Airspace between lens and light bar is 0.03 ± 0.01mm；Airspace between the light bar and the 4th lens is
0.165±0.05mm；Airspace between 5th lens and the 6th lens is 0.343 ± 0.05mm.
Further, the mega pixel camera lens further includes preceding pressing ring, the first mechanical spacer ring, the second mechanical spacer ring, third
Mechanical spacer ring, the preceding pressing ring, which is fixedly installed in outside the front end nozzle of body tube and plays limit to the front position of the first lens, to be made
With first lens are fixedly installed in the front end cylinder of body tube, and second mechanical spacer ring is fixedly installed in body tube
Cylinder in, second lens, the third lens, the 4th lens, the 5th lens are set in turn in second along light incident direction
In the cylinder of mechanical spacer ring, the rear end of second mechanical spacer ring is equipped with the limit for playing position-limiting action to the 5th lens rear
Flange, to limit two in the cylinder of second mechanical spacer ring of the first mechanical spacer ring and between the third lens and the 4th lens
The airspace of person, the 6th lens are fixedly installed in the rear end cylinder of body tube, the fixed peace of the third mechanical spacer ring
To limit the 5th lens and the 6th lens in cylinder loaded on body tube and between the second mechanical spacer ring and the 6th lens
Airspace.
Further, the mega pixel camera lens further includes the annular marine glue being set between the first lens and preceding pressing ring
Slot.
For the prior art, the invention has the following advantages that
(1) the mega pixel camera lens of the short TTL of the full glass of wide-angle provided by the invention, the camera lens use four group of six chip knot
Structure, for field of view angle up to 160 ° ± 10%, imaging target surface reaches Φ 6.4mm, and optics overall length is 10.9mm ± 10%, is applicable in video camera
1/4 " or more image planes, image quality central vision MTF are better than 140LP/mm > 0.3, and 70% visual field of disc of confusion (112 °) is better than
3.2um, (144 °) of 90% visual field are better than 2.9um, effectively meet the need in the fields such as reverse image, smart home, safety monitoring
It asks；
(2) the mega pixel camera lens of the short TTL of the full glass of wide-angle provided by the invention, ensure that camera lens small form factor requirements,
Wider array of visual range is provided in the case that lens optical overall length is short enough, more elemental areas expand making for camera lens
With range, imaging definition ensure that；
(3) second face of the mega pixel camera lens of the short TTL of the full glass of wide-angle provided by the invention, the first lens is designed to
Concave surface is converged after optical system light is received to the greatest extent, and designing second face, to assume responsibility for system maximum negative
Curvature of field aberration；Second lens and the third lens composition contiguity gluing unit, two sides assume responsibility for lesser degree of positive curvature of field aberration and
Maximum positive astigmatic image error in system；The gluing unit of 4th lens and the 5th lens composition contiguity, the 4th lens are that double concave type is saturating
Mirror, the 4th second, lens face are concave surface, assume responsibility for system largely negative astigmatic image error, for compensating the second lens first
The positive astigmatic image error that face generates, effectively improves the image quality of system, reduces disc of confusion, and the 5th the second face of lens has biggish
Positive both curvature of field aberration and first the second face of lens are effectively balanced, and center and clearly journey while edge are improved
Degree；6th lens are lenticular lens, assume responsibility for lesser degree of positive curvature of field aberration, two sides undertaken respectively it is a degree of just
Curvature of field aberration, first face assume responsibility for a degree of negative astigmatic image error；The present invention passes through the effective and reasonable picture using eyeglass
Difference balance, the aberration control of total system is in a very reasonable range, and whole remaining maximum curvature of field aberration control is one
Within the scope of a acceptable；
(4) the mega pixel camera lens of the short TTL of the full glass of wide-angle provided by the invention, first that system is increased in design are saturating
Mirror edge thickness enables it to reserve enough waterproof glue grooves in cooperative mechanical structure, the waterproof performance of camera lens is enable to reach
To the rank of IP67；
(5) the mega pixel camera lens of the short TTL of the full glass of wide-angle provided by the invention, service performance is reliable, has a wide range of application,
Application easy to spread.
Detailed description of the invention
The invention will be further described in conjunction with the embodiments with reference to the accompanying drawings:
Fig. 1 is the structural schematic diagram of the mega pixel camera lens of the short TTL of the full glass of wide-angle of the present invention；
Fig. 2 is the lens structure schematic diagram of the mega pixel camera lens of the short TTL of the full glass of wide-angle of the present invention；
Fig. 3 is the MTF curve figure of the mega pixel camera lens of the short TTL of the full glass of wide-angle of the present invention；
Fig. 4 is the figure of optical lens preferred embodiment of the mega pixel camera lens of the short TTL of the full glass of wide-angle of the present invention；
Fig. 5 is the relative illumination figure of the mega pixel camera lens of the short TTL of the full glass of wide-angle of the present invention；
Fig. 6 is the defocusing curve figure of the mega pixel camera lens of the short TTL of the full glass of wide-angle of the present invention；
Fig. 7 is the seidel aberration profile figure of the mega pixel camera lens of the short TTL of the full glass of wide-angle of the present invention；
Fig. 8 is the curvature of field distortion figure of the mega pixel camera lens of the short TTL of the full glass of wide-angle of the present invention；
Fig. 9 is the spherical aberration figure of the mega pixel camera lens of the short TTL of the full glass of wide-angle of the present invention；
Figure 10 is the aberration diagram of the mega pixel camera lens of the short TTL of the full glass of wide-angle of the present invention.
Symbol description in figure: 1, annular waterproof glue groove, 2, preceding pressing ring, 3, body tube, A-1, the first lens, A-2, second are thoroughly
Mirror, A-3, the third lens, B, light bar, C-1, the 4th lens, C-2, the 5th lens, C-3, the 6th lens, G1, first it is mechanical every
Circle, G2, the second mechanical spacer ring, G3, third mechanical spacer ring.
Specific embodiment
The content of present invention is described in detail with specific embodiment with reference to the accompanying drawings of the specification:
It as Figure 1-Figure 2, is the mega pixel camera lens of the short TTL of full glass of wide-angle provided by the invention a kind of, feature
Be: the camera lens include body tube 3 and along front lens group that light incident direction is set in turn in body tube 3, light bar B and after
Microscope group, the front lens group include the first lens A-1 that setting is arranged successively along light incident direction, the second lens A-2 and
Second face of three lens A-3, the first lens A-1 is concave surface, the total focal length of the second lens A-2, the third lens A-3
Range is 15~40mm, and the rear microscope group includes the 4th lens C-1, the 5th lens that setting is arranged successively along light incident direction
The focal range of C-2 and the 6th lens C-3, the rear microscope group are 7.5~20mm.TTL in text indicates optics overall length.
Further, the first lens A-1 is meniscus lens or double concave type lens, and the second lens A-2 is positive
Selenodont lens, the third lens A-3 are lenticular lens, what the second lens A-2 and the third lens A-3 composition touched
Gluing unit, the 4th lens C-1 are double concave type lens, and the 5th lens C-2 is lenticular lens, the 6th lens C-
3 be lenticular lens, the gluing unit of the 4th lens C-1 and the 5th lens C-2 composition contiguity.
Each lens of the front lens group need to be met the following optical conditions:
1.45 < n1 < 1.55,66 < v1 < 95；
1.7 < n2 < 1.8,20 < v2 < 35；
1.9 < n3 < 2.2,10 < v3 < 20；
Wherein n1-n3 is followed successively by the refractive index of the first lens-the third lens, and v1-v3 is followed successively by the first lens-the third lens
Abbe number；
Each lens of microscope group need to be met the following optical conditions after described:
1.8 < n4 < 2.1,15 < v4 < 20；
1.65 < n5 < 1.95,45 < v5 < 60；
1.6 < n6 < 2,35 < v6 < 55；
Wherein n4-n6 is followed successively by the refractive index of the 4th the-the six lens of lens, and v4-v6 is followed successively by the 4th the-the six lens of lens
Abbe number.
Further, the airspace between the first lens A-1 and the second lens A-2 is 0.637 ± 0.05mm；Institute
Stating the airspace between the third lens A-3 and light bar B is 0.03 ± 0.01mm；Between the light bar B and the 4th lens C-1
Airspace is 0.165 ± 0.05mm；Airspace between the 5th lens C-2 and the 6th lens C-3 is 0.343 ±
0.05mm。
Further, the mega pixel camera lens further include before pressing ring 2, the first mechanical spacer ring G1, the second mechanical spacer ring G2,
Third mechanical spacer ring G3, the preceding pressing ring 2 are fixedly installed in outside the front end nozzle of body tube 3 and to the front end of the first lens A-1
Position-limiting action is played in position, and the first lens A-1 is fixedly installed in the front end cylinder of body tube 3, second mechanical spacer ring
G2 is fixedly installed in the cylinder of body tube 3, the second lens A-2, the third lens A-3, the 4th lens C-1, the 5th lens
Along the cylinder that light incident direction is set in turn in the second mechanical spacer ring G2, the rear end of the second mechanical spacer ring G2 is set C-2
There are the defining flange for playing position-limiting action to the 5th rear end lens C-2, the second mechanical spacer ring of the first mechanical spacer ring G1 G2
Cylinder in and positioned at the third lens A-3 and the 4th lens C-1 between with limit the two airspace, the 6th lens C-
3 are fixedly installed in the rear end cylinder of body tube 3, the third mechanical spacer ring G3 be fixedly installed in the cylinder of body tube 3 and
The airspace of the 5th lens C-2 and the 6th lens C-3 is limited between the second mechanical spacer ring G2 and the 6th lens C-3.
Further, the mega pixel camera lens further includes that the annular being set between the first lens A-1 and preceding pressing ring 2 is prevented
Glue slot 1.
Optics overall length < 11mm (the optics overall length of Conventional compact camera lens is typically larger than 15mm on the market at present) of the present invention, energy
Enough guarantee the small form factor requirements of product, in the case where guaranteeing that optics overall length is short enough, field angle has reached 160 °, imaging target surface
Reach Φ 6.4mm, provides wider array of visual range, more elemental areas.The product of existing same type on the market is
It can accomplish that shorter optics overall length would generally use the structure of glass lens and the non-spherical lens mixing of plastics, will lead in this way
It is empty burnt that image is easily caused when extraneous variation of ambient temperature (- 40 DEG C -80 DEG C), the use scope of extreme influence camera lens and
Imaging definition.Present invention employs the structures of full glass lens, effectively reduce different geographical, different time in actual use
To the Imaging of system；The image quality central vision MTF of design is better than 140LP/mm > 0.3 (see Fig. 3), disc of confusion 70%
(112 °) of visual field are better than 3.2um, and (144 °) of 90% visual field are better than 2.9um (see Fig. 4).Effectively meet 2 mega pixel demands；It is full
The clarity requirement of sufficient nighttime imaging, the present invention design spectral region and are added 940nm's other than the visible spectrum of 420-650nm
Infrared spectroscopy is designed the imaging effect that can reach day and night confocal.The infrared defocus of 940nm is less than 0.015mm, in addition
Advantage be 940nm infrared light human eye it is invisible, increase the concealment of monitoring, prevent from artificially sabotaging.Fig. 1 is this hair
The structural design scheme of bright mirror head totality, surplus spatially guarantee the realization of waterproof performance, and glue groove width > 0.2mm guarantees glue
The intensity of water.Fig. 2 is optics overal system design scheme of the present invention, all glass spheric glasses in figure, high temperature performance meeting
Better than the non-spherical lens of plastics, convenient for being used under more adverse circumstances.Fig. 3 is the optical transfer function (MTF) of camera lens of the present invention, table
Show camera lens resolution capability, the higher the better, and resolution ratio meets the requirement of 2,000,000 pixels as we can see from the figure.Fig. 4 is mirror of the present invention
The figure of optical lens preferred embodiment of head, in same area, pixel is smaller, and the resolution ratio of system is higher, it can be seen that disc of confusion meets 200 in figure
The pixel request of ten thousand pixels imager chip below.Fig. 5 is the relative illumination figure of camera lens of the present invention, and edge is greater than relative to center
30% i.e. reflect overall picture uniformity of brightness it is preferable, meet catercorner length and exist in 6.4mm camera chip below
It is not in dark angle in use process.Fig. 6 is the defocusing curve figure of camera lens of the present invention, in figure it can be seen that focal depth range ±
0.02mm has the reasonable consistency of assembly.Fig. 7 is the seidel aberration profile figure of camera lens of the present invention, indicates optical system picture
The distribution situation of difference carries it can be seen that the various aberrations that undertake of each lens surface are relatively reasonable in figure without which face
Excessive aberration is without the face that balances therewith in system.Fig. 8 is the curvature of field distortion figure of the optical system of camera lens of the present invention, in figure
It can be seen that curvature of field control is in the reasonable scope, it can guarantee center and peripheral while focusing clear.Fig. 9 is the ball of camera lens of the present invention
Dygoram indicates the position deviation for putting each wavelength actual imaging face Yu ideal image face on axis, can be seen that spherical aberration point in figure
Cloth is relatively reasonable.Figure 10 is the aberration diagram of camera lens of the present invention, embodies the relation curve balanced between various aberrations in each visual field,
It can be seen that the aberration curve of each visual field is more smooth in figure, the consistency in guaranteed discharge postpartum.
Above-mentioned specific embodiment is only explained in detail technical solution of the present invention, the present invention not only only office
It is limited to above-described embodiment, all any improvement or replacement according to the principle of the invention should all be within protection scope of the present invention.
Claims (6)
1. the mega pixel camera lens of the short TTL of full glass of wide-angle a kind of, it is characterised in that: the camera lens includes body tube (3) and edge
It includes along light that light incident direction, which is set in turn in front lens group in body tube (3), light bar (B) and rear microscope group, the front lens group,
Line incident direction is arranged successively the first lens (A-1), the second lens (A-2) and the third lens (A-3) of setting, and described first
Second face of lens (A-1) be concave surface, second lens (A-2), the third lens (A-3) total focal length range be 15~
40mm, it is described after microscope group include the 4th lens (C-1) that setting is arranged successively along light incident direction, the 5th lens (C-2) with
And the 6th lens (C-3), it is described after the focal range of microscope group be 7.5~20mm.
2. the mega pixel camera lens of the short TTL of the full glass of wide-angle according to claim 1, it is characterised in that: described first thoroughly
Mirror (A-1) is meniscus lens or double concave type lens, and second lens (A-2) are positive selenodont lens, the third lens
It (A-3) is lenticular lens, the gluing unit of second lens (A-2) and the third lens (A-3) composition contiguity, the described 4th thoroughly
Mirror (C-1) is double concave type lens, and the 5th lens (C-2) are lenticular lens, and the 6th lens (C-3) are that biconvex is saturating
Mirror, the gluing unit of the 4th lens (C-1) and the 5th lens (C-2) composition contiguity.
3. the mega pixel camera lens of the short TTL of the full glass of wide-angle according to claim 1, it is characterised in that: the front lens group
Each lens need to meet the following optical conditions:
1.45 < n1 < 1.55,66 < v1 < 95；
1.7 < n2 < 1.8,20 < v2 < 35；
1.9 < n3 < 2.2,10 < v3 < 20；
Wherein n1-n3 is followed successively by the refractive index of the first lens-the third lens, v1-v3 be followed successively by the first lens-the third lens Ah
Shellfish coefficient；
Each lens of microscope group need to be met the following optical conditions after described:
1.8 < n4 < 2.1,15 < v4 < 20；
1.65 < n5 < 1.95,45 < v5 < 60；
1.6 < n6 < 2,35 < v6 < 55；
Wherein n4-n6 is followed successively by the refractive index of the 4th the-the six lens of lens, and v4-v6 is followed successively by the Ah of the 4th the-the six lens of lens
Shellfish coefficient.
4. the mega pixel camera lens of the short TTL of the full glass of wide-angle according to claim 1, it is characterised in that: described first thoroughly
Airspace between mirror (A-1) and the second lens (A-2) is 0.637 ± 0.05mm；The third lens (A-3) and light bar
(B) airspace between is 0.03 ± 0.01mm；Airspace between the light bar (B) and the 4th lens (C-1) is
0.165±0.05mm；Airspace between 5th lens (C-2) and the 6th lens (C-3) is 0.343 ± 0.05mm.
5. the mega pixel camera lens of the short TTL of the full glass of wide-angle according to claim 1, it is characterised in that: million picture
Plain camera lens further includes preceding pressing ring (2), the first mechanical spacer ring (G1), the second mechanical spacer ring (G2), third mechanical spacer ring (G3), described
Preceding pressing ring (2), which is fixedly installed in outside the front end nozzle of body tube (3) and plays limit to the front position of the first lens (A-1), to be made
With first lens (A-1) are fixedly installed in the front end cylinder of body tube (3), and second mechanical spacer ring (G2) is fixed
It is installed in the cylinder of body tube (3), second lens (A-2), the third lens (A-3), the 4th lens (C-1), the 5th are thoroughly
Mirror (C-2) is along the cylinder that light incident direction is set in turn in the second mechanical spacer ring (G2), second mechanical spacer ring (G2)
Rear end be equipped with the defining flange for playing position-limiting action to the 5th lens rear end (C-2), first mechanical spacer ring (G1) the
The air of the two is limited in the cylinder of two mechanical spacer rings (G2) and between the third lens (A-3) and the 4th lens (C-1)
Interval, the 6th lens (C-3) are fixedly installed in the rear end cylinder of body tube (3), and the third mechanical spacer ring (G3) is solid
Dingan County is loaded in the cylinder of body tube (3) and between the second mechanical spacer ring (G2) and the 6th lens (C-3) to limit the 5th
The airspace of lens (C-2) and the 6th lens (C-3).
6. the mega pixel camera lens of the short TTL of the full glass of wide-angle according to claim 5, it is characterised in that: million picture
Plain camera lens further includes the annular waterproof glue groove (1) being set between the first lens (A-1) and preceding pressing ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910344239.3A CN110007446A (en) | 2019-04-26 | 2019-04-26 | The mega pixel camera lens of the short TTL of the full glass of wide-angle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910344239.3A CN110007446A (en) | 2019-04-26 | 2019-04-26 | The mega pixel camera lens of the short TTL of the full glass of wide-angle |
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| CN110007446A true CN110007446A (en) | 2019-07-12 |
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| CN201910344239.3A Withdrawn CN110007446A (en) | 2019-04-26 | 2019-04-26 | The mega pixel camera lens of the short TTL of the full glass of wide-angle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112099193A (en) * | 2020-09-30 | 2020-12-18 | 福建福特科光电股份有限公司 | Small TOF lens |
-
2019
- 2019-04-26 CN CN201910344239.3A patent/CN110007446A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112099193A (en) * | 2020-09-30 | 2020-12-18 | 福建福特科光电股份有限公司 | Small TOF lens |
| CN112099193B (en) * | 2020-09-30 | 2021-07-09 | 福建福特科光电股份有限公司 | Small TOF lens |
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