CN107450155A - Optical lens - Google Patents
Optical lens Download PDFInfo
- Publication number
- CN107450155A CN107450155A CN201610375776.0A CN201610375776A CN107450155A CN 107450155 A CN107450155 A CN 107450155A CN 201610375776 A CN201610375776 A CN 201610375776A CN 107450155 A CN107450155 A CN 107450155A
- Authority
- CN
- China
- Prior art keywords
- lens
- lens group
- diopter
- optical
- tool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
The present invention provides a kind of optical lens, including one first lens group, one second lens group and the aperture between the first lens group and the second lens group.First lens group has negative diopter and the number of lenses comprising tool diopter is less than 3.Second lens group has positive diopter and the number of lenses comprising tool diopter is less than the non-spherical lens of 5 and tool diffraction face；And optical lens meets following condition：WhereinFor diffraction face diopter,For the refraction diopter of the lens in tool diffraction face, V is the Abbe number of the lens in tool diffraction face.Pass through the design of the embodiment of the present invention, it is possible to provide one kind can take into account lightweight and day and night confocal, and can provide relatively low manufacturing cost and the optical lens design of preferable image quality.
Description
Technical field
A kind of present invention optical lens of confocal performance on tool diffraction element and day and night.
Background technology
The video camera of wired home monitoring in recent years has more and more booming trend, and people are for slimming and optics
The requirement of performance also more and more higher.Meet the camera lens of such demand, generally need have low cost, large aperture, wide viewing angle, gently
The features such as quantifying and be day and night confocal.Especially day and night confocal part, traditional method must use low dispersion material (fluorite), but
The heavier-weight (about 1.5 times of general glass) of fluorite material, and cost is higher (about 18 times of general glass), so
It is inconsistent with the trend of low cost and lightness.Therefore, lightweight and day and night confocal can be taken into account by needing one kind badly at present, and can be carried
Designed for the sampling image lens of relatively low manufacturing cost and preferable image quality.
The content of the invention
Other objects of the present invention and advantage can obtain further from the technical characteristic disclosed by the embodiment of the present invention
Understanding.
One embodiment of the invention proposes a kind of optical lens, including the first lens group for sequentially being set by a direction and the
Two lens groups, the aperture between the first lens group and the second lens group.First lens group has negative diopter and includes tool
The number of lenses of diopter is less than 3.Second lens group has positive diopter and the number of lenses comprising tool diopter is less than 5 and tool
The non-spherical lens in diffraction face；And optical lens meets following condition：WhereinBent for diffraction face
Luminosity,For the refraction diopter of the lens in tool diffraction face, V is the Abbe number of the lens in tool diffraction face.
Pass through the design of the embodiment of the present invention, it is possible to provide one kind can take into account lightweight and day and night confocal, and can provide relatively low
Manufacturing cost and preferable image quality optical lens design.
Other objects of the present invention and advantage can from disclosed herein technical characteristic in be further understood.
For the above and other objects, features and advantages of the present invention can be become apparent, special embodiment below simultaneously coordinates institute's accompanying drawing
Formula, it is described in detail below.
Brief description of the drawings
Fig. 1 is the schematic diagram according to the optical lens 10a of one embodiment of the invention.
Fig. 2 to Fig. 5 be Fig. 1 optical lens image optics analogue data figure, wherein Fig. 2-Fig. 3 be respectively visible ray and
The light sector diagram of 850 nanometers of infrared lights, Fig. 4-Fig. 5 are respectively the diffraction optics biography of 587 nanometers of green glows and 850 nanometers of infrared lights
Delivery function curve map.
Fig. 6 is the schematic diagram according to the optical lens 10b of another embodiment of the present invention.
Fig. 7 to Figure 10 is the image optics analogue data figure of Fig. 6 optical lens, and wherein Fig. 7-Fig. 8 is respectively visible ray
With the light sector diagram of 850 nanometers of infrared lights, Fig. 9-Figure 10 is respectively the diffraction light of 587 nanometers of green glows and 850 nanometers of infrared lights
Learn transfer curve figure.
Figure 11 is the schematic diagram according to the optical lens 10c of another embodiment of the present invention.
Figure 12 to Figure 15 is the image optics analogue data figure of Figure 11 optical lens, and wherein Figure 12-Figure 13 is respectively can
See the light sector diagram of light and 850 nanometers of infrared lights, Figure 14-Figure 15 be respectively 587 nanometers of green glows and 850 nanometers of infrared lights around
Penetrate optical transfer function curve map.
Figure 16 is the schematic diagram according to the optical lens 10d of another embodiment of the present invention.
Figure 17 to Figure 20 is the image optics analogue data figure of Figure 16 optical lens, and wherein Figure 17-Figure 18 is respectively can
See the light sector diagram of light and 850 nanometers of infrared lights, Figure 19-Figure 20 be respectively 587 nanometers of green glows and 850 nanometers of infrared lights around
Penetrate optical transfer function curve map.
Drawing reference numeral
10a-10d optical lens
12 optical axises
14 apertures
16 glass covers
18 imaging planes
20 first lens groups
30 second lens groups
L1-L7 lens
S1-S15 surfaces
Embodiment
For the present invention foregoing and other technology contents, feature and effect, in the following embodiment coordinated with reference to schema
Detailed description in, can clearly present.The direction term being previously mentioned in following examples, such as：It is upper and lower, left and right, preceding
Or it is rear etc., only it is the direction with reference to annexed drawings.Therefore, the direction term used is intended to be illustrative and not intended to limit this hair
It is bright.
Fig. 1 is schematic diagram of the display according to the optical lens 10a of one embodiment of the invention.Optical lens 10a is arranged at one and put
Big side (Fig. 1 left side；For example, thing side) and a reduced side (Fig. 1 right side；For example, image side) between.As shown in figure 1, optics
Camera lens 10a includes the first lens group (being, for example, pre-group) 20, the tool with negative diopter and between Zoom Side and reduced side
There is positive diopter and the second lens group (be, for example, after group) 30 between the first lens group 20 and reduced side and positioned at the
An aperture 14 in two lens groups 30.Furthermore glass cover 16 and image sensor, its imaging plane sign can be set in reduced side
For 18, and glass cover 16 is between the second lens group 30 and imaging plane 18.First lens group 20 can be included along optical lens
One first lens L1 and one second lens L2 of the 10a optical axis 12 from Zoom Side to reduced side sequential, and the second lens group
30 can include one the 3rd lens L3 along optical lens 10a optical axis 12 from Zoom Side to reduced side sequential, one the 4th saturating
Mirror L4, one the 5th lens L5 and one the 6th lens L6, the first lens L1 to the 6th lens L6 diopter be respectively it is negative, negative, positive,
It is positive and negative, just.In the present embodiment, the 6th lens L6 can be to include the non-spherical lens in a diffraction face, the first lens L1, second
Lens L2 and the 5th lens L5 is crescent lens, and the 3rd lens L3 and the 4th lens L4 are biconvex lens.In addition, the 4th is saturating
Mirror L4 and the 5th lens L5 forms the balsaming lens of tool positive diopter.It is worth noting that, the 4th lens L4 and the 5th lens L5
There is identical radius of curvature on adjacent two sides, and the two adjacent surfaces of balsaming lens can be bonded using different modes, such as with
Optical cement be coated between two adjacent surfaces it is glued, in a manner of mechanism member presses two adjacent surfaces etc..Optical lens 10a Lens Design
Parameter, profile, asphericity coefficient and diffraction face are respectively as shown in table one, table two and table three, in following each design of the invention
In example, aspherical multinomial can be represented with following equation：
In above-mentioned formula (1), Z is the offset (sag) of optical axis direction, and c is osculating sphere (osculating
Sphere the inverse of radius), that is, the inverse close to the radius of curvature at optical axis, k are quadratic surface coefficient (conic), r
It is aspherical height, as from lens centre toward the height of rims of the lens.The A-D of table two represents aspherical polynomial 4 respectively
Rank item, 6 rank items, 8 rank items, 10 rank term system numerical value.
In following each design example of the invention, diffraction face multinomial can be represented with following equation：
φ (r)=(2 π/λ0)∑Cnr2n (2)
In above-mentioned formula (2), φ (r) is the phase letter of diffraction element (diffractice optical element)
Number (phase), r are and the radial distance of optical lens optical axis (radial distance), λ0It is reference wavelength (reference
Wavelength), that is to say, that diffraction face (diffractice optical surface) is that lens surface adds phase function
(phase).The C1-C4 of table three represents the polynomial 2 rank item in diffraction face, 4 rank items, 6 rank items, 8 rank term system numerical value respectively.
Table one
S1 spacing is distances of surface S1 to the S2 in optical axis 12, S2 spacing be surface S2 to S3 optical axis 12 away from
From, S13 spacing and next spacing and for glass cover S13 surfaces to imaging plane 18 optical axis 12 distance.
Visible ray effective focal length (EFL of visible light)=3.976mm；
Infrared light effective focal length (EFL of NIR 850nm light)=3.984mm；
F-number (F-Number)=1.8；
Maximum field of view angle (Max.field of view, FOV)=163.8 degree；
Maximum image height (Max.Image Height)=8.914mm of imaging plane；
Camera lens overall length (total track length, TTL, S1 to imaging plane distance)=28.83mm.
Table two
| S11 | |
| K | -1.63 |
| A | 2.445E-06 |
| B | -5.290E-08 |
| C | 0 |
| D | 0 |
Table three
Fig. 2-Fig. 3 is respectively the light sector diagram (ray fan plot) of visible ray and 850 nanometers of infrared lights, wherein X-axis
Position for light by entrance pupil, Y-axis are the relative value for the position that chief ray is projected to image plane (such as imaging plane 18).
Fig. 4 to Fig. 5 is the present embodiment optical lens 10a image optics analogue data figure, and wherein Fig. 4-Fig. 5 is respectively 587 nanometers green
The diffraction optics transfer curve figure of light and 850 nanometers of infrared lights (modulation transfer function, MTF),
Both focal plane offsets are about 1 micron.It should be noted that the green of 555 nanometers of 587 nanometers of green glow substitution can also be used
Light draws image optics analogue data figure.If the focal plane for passing through optical lens 10a with 555 nanometers or 587 nanometers of green glows
For measuring basis, optical lens 10a meets that in the focal plane displacement, it is micro- to be less than 5 from the measuring basis for 850 nanometers of infrared lights
Rice.Thus the figure gone out shown by Fig. 2-Fig. 5 analogue data figures can verify that the optical frames of the present embodiment in the range of standard
Head 10a can actually have good optical imagery quality and day and night confocal characteristic concurrently.
It can be 1.8 that the optical lens of the present embodiment, which can include two lens groups and f-number, optical lens can include tool one around
The a piece of non-spherical lens in face is penetrated to correct aberration and aberration.Furthermore following condition can be met：
20<V<60 (4)
WhereinFor diffraction face diopter, it is the C1/ (- 0.5) in table three,For the refraction dioptric of non-spherical lens
Degree, V are the Abbe number of non-spherical lens.Specifically, it is assumed that optical lens is designed to comply withNow may be used
See that both light and infrared light chromatic aberration correction are excessive, the focal plane of infrared light shortens.On the other hand, it is assumed that optical lens is designed to
MeetNow both visible ray and infrared light chromatic aberration correction deficiency, the focal plane of infrared light are elongated.Therefore, originally
The optical lens of embodiment is configured to conform toCondition, can make optical lens have concurrently good optics into
As quality and day and night confocal characteristic.
Fig. 6 is schematic diagram of the display according to the optical lens 10b of another embodiment of the present invention.Optical lens 10b is arranged at one
Zoom Side (Fig. 6 left side；For example, thing side) and a reduced side (Fig. 6 right side；For example, image side) between.As shown in fig. 6, light
Learn camera lens 10b include the first lens group (for example, pre-group) 20 with negative diopter and positioned at Zoom Side and reduced side between,
The second lens group (be, for example, after group) 30 with positive diopter and between the first lens group 20 and reduced side and it is located at
An aperture 14 in second lens group 30.Furthermore glass cover 16 and image sensor, its imaging plane mark can be set in reduced side
18 are shown as, and glass cover 16 is between the second lens group 30 and imaging plane 18.First lens group 20 can be included along optical frames
One first lens L1 and one second lens L2 of the head 10b optical axis 12 from Zoom Side to reduced side sequential, and the second lens
Group 30 can include one the 3rd lens L3 along optical lens 10b optical axis 12 from Zoom Side to reduced side sequential, one the 4th
Lens L4, one the 5th lens L5 and one the 6th lens L6, the first lens L1 to the 6th lens L6 diopter be respectively it is negative, negative,
Just, just, it is positive and negative.In the present embodiment, the 4th lens L4 can be to include the non-spherical lens in a diffraction face, the first lens L1, the
Two lens L2, the 3rd lens L3 and the 6th lens L6 are crescent lens, and the 5th lens L5 biconvex lens.In addition, the 5th is saturating
Mirror L5 and the 6th lens L6 forms the balsaming lens of tool positive diopter.It is worth noting that, the 5th lens L5 and the 6th lens L6
There is identical radius of curvature on adjacent two sides, and the two adjacent surfaces of balsaming lens can be bonded using different modes, such as with
Optical cement be coated between two adjacent surfaces it is glued, in a manner of mechanism member presses two adjacent surfaces etc..Optical lens 10b Lens Design
Parameter, profile, asphericity coefficient and diffraction face are respectively as shown in table four, table five and table six, and wherein the A-D of table five is represented non-respectively
4 rank items, 6 rank items, 8 rank items, the 10 rank term system numerical value of polynomial asphere (as shown in Equation 1).The C1-C4 of table six represent respectively around
Penetrate 2 rank items, 4 rank items, 6 rank items, the 8 rank term system numerical value of face multinomial (as shown in Equation 2).
Table four
S1 spacing is distances of surface S1 to the S2 in optical axis 12, S2 spacing be surface S2 to S3 optical axis 12 away from
From, S13 spacing and next spacing and for glass cover S13 surfaces to imaging plane 18 optical axis 12 distance.
Visible ray effective focal length (EFL of visible light)=4.04mm；
Infrared light effective focal length (EFL of NIR 850nm light)=4.054mm；
F-number (F-Number)=1.8；
Maximum field of view angle (Max.field of view, FOV)=138.5 degree；
Maximum image height (Max.Image Height)=8.914mm of imaging plane；
Camera lens overall length (total track length, TTL, S1 to imaging plane distance)=30mm.
Table five
| S8 | |
| K | 0 |
| A | -7.738E-04 |
| B | 2.689E-05 |
| C | -3.242E-06 |
| D | 2.228E-07 |
Table six
Fig. 7-Fig. 8 is respectively the light sector diagram (ray fan plot) of visible ray and 850 nanometers of infrared lights, wherein X-axis
Position for light by entrance pupil, Y-axis are the relative value for the position that chief ray is projected to image plane (such as imaging plane 18).
Fig. 9 to Figure 10 is the present embodiment optical lens 10b image optics analogue data figure, and wherein Fig. 9-Figure 10 is respectively 587 nanometers
The diffraction optics transfer curve figure of green glow and 850 nanometers of infrared lights (modulation transfer function,
MTF), both focal plane offsets are about 4 microns.It should be noted that 555 nanometers of green glow substitution 587 can also be used to receive
The green glow of rice draws image optics analogue data figure.If pass through the one of optical lens 10b with 555 nanometers or 587 nanometers of green glows
Focal plane is measuring basis, and optical lens 10b meets 850 nanometers of infrared lights in the focal plane displacement, small from the measuring basis
In 5 microns.Thus the figure gone out shown by Fig. 7-Figure 10 analogue data figures can verify that the present embodiment in the range of standard
Optical lens 10b can actually have good optical imagery quality and day and night confocal characteristic concurrently.
It can be 1.8 that the optical lens of the present embodiment, which can include two lens groups and f-number, optical lens can include tool one around
The a piece of non-spherical lens in face is penetrated to correct aberration and aberration.Furthermore following condition can be met：
20<V<60 (4)
WhereinFor diffraction face diopter, it is the C1/ (- 0.5) in table six,For the refraction dioptric of non-spherical lens
Degree, V are the Abbe number of non-spherical lens.Specifically, it is assumed that optical lens is designed to comply withNow may be used
See that both light and infrared light chromatic aberration correction are excessive, the focal plane of infrared light shortens.On the other hand, it is assumed that optical lens is designed to
MeetNow both visible ray and infrared light chromatic aberration correction deficiency, the focal plane of infrared light are elongated.Therefore, originally
The optical lens of embodiment is configured to conform toCondition, can make optical lens have concurrently good optics into
As quality and day and night confocal characteristic.
Figure 11 is schematic diagram of the display according to the optical lens 10c of one embodiment of the invention.Optical lens 10c is arranged at one and put
Big side (Figure 11 left side；For example, thing side) and a reduced side (Figure 11 right side；For example, image side) between.As shown in figure 11,
Optical lens 10c includes the first lens group 20 positioned at Zoom Side and reduced side between, have positive diopter and to be located at first saturating
The second lens group 30 between lens group 20 and reduced side and the light between the first lens group 20 and the second lens group 30
Circle 14.Furthermore glass cover 16 and image sensor can be set in reduced side, and its imaging plane is denoted as 18, and glass cover is located at
Between second lens group 30 and imaging plane 18.First lens group 20 can be included along optical lens 10c optical axis 12 from Zoom Side
To the one first lens L1, one second lens L2 and one the 3rd lens L3 of reduced side sequential, and the second lens group 30 can wrap
Containing one the 4th lens L4, one the 5th lens L5 along optical lens 10c optical axis 12 from Zoom Side to reduced side sequential and
One the 6th lens L6, the first lens L1 to the 6th lens L6 diopter are respectively negative, negative, positive, positive and negative, just.In the present embodiment
In, the 6th lens L6 can be the non-spherical lens for including a diffraction face, and the first lens L1, the second lens L2 and the 5th lens L5 are
Crescent lens, and the 3rd lens L3 and the 4th lens L4 are biconvex lens.In addition, the 4th lens L4 and the 5th lens L5 is formed
Has the balsaming lens of positive diopter.It is worth noting that, two sides adjacent with the 5th lens L5 the 4th lens L4 has identical bent
Rate radius, and the two adjacent surfaces of balsaming lens can be bonded using different modes, such as two adjacent surfaces are coated on optical cement
Between it is glued, in a manner of mechanism member presses two adjacent surfaces etc..Optical lens 10c lens design parameters, profile, asphericity coefficient
And diffraction face, respectively as shown in table seven, table eight and table nine, the wherein A-D of table eight represents aspherical multinomial (such as the institute of formula 1 respectively
Show) 4 rank items, 6 rank items, 8 rank items, 10 rank term system numerical value.The C1-C4 of table nine represents diffraction face multinomial (such as the institute of formula 2 respectively
Show) 2 rank items, 4 rank items, 6 rank items, 8 rank term system numerical value.
Table seven
S1 spacing is distances of surface S1 to the S2 in optical axis 12, S2 spacing be surface S2 to S3 optical axis 12 away from
From, S13 spacing and next spacing and for glass cover S13 surfaces to imaging plane 18 optical axis 12 distance.
Visible ray effective focal length (EFL of visible light)=3.964mm；
Infrared light effective focal length (EFL of NIR 850nm light)=3.959mm；
F-number (F-Number)=1.8；
Maximum field of view angle (Max.field of view, FOV)=154.8 degree；
Maximum image height (Max.Image Height)=8.914mm of imaging plane；
Camera lens overall length (total track length, TTL, S1 to imaging plane distance)=29.6mm；
Table eight
Table nine
Figure 12-Figure 13 is respectively the light sector diagram (ray fan plot) of visible ray and 850 nanometers of infrared lights, wherein X
Axle is position of the light by entrance pupil, and Y-axis is the relative number for the position that chief ray is projected to image plane (such as imaging plane 18)
Value.Figure 14 to Figure 15 is the present embodiment optical lens 10c image optics analogue data figure, and wherein Figure 14-Figure 15 is respectively 587
The diffraction optics transfer curve figure of nanometer green glow and 850 nanometers of infrared lights (modulation transfer function,
MTF), both focal plane offsets are about 4 microns.It should be noted that 555 nanometers of green glow substitution 587 can also be used to receive
The green glow of rice draws image optics analogue data figure.If pass through the one of optical lens 10c with 555 nanometers or 587 nanometers of green glows
Focal plane is measuring basis, and optical lens 10c meets 850 nanometers of infrared lights in the focal plane displacement, small from the measuring basis
In 5 microns.Thus the figure gone out shown by Figure 12-Figure 15 analogue data figures can verify that the present embodiment in the range of standard
Optical lens 10c can actually have good optical imagery quality and day and night confocal characteristic concurrently.
It can be 1.8 that the optical lens of the present embodiment, which can include two lens groups and f-number, optical lens can include tool one around
The a piece of non-spherical lens in face is penetrated to correct aberration and aberration.Furthermore following condition can be met：
20<V<60 (4)
WhereinFor diffraction face diopter, it is the C1/ (- 0.5) in table nine,For the refraction dioptric of non-spherical lens
Degree, V are the Abbe number of non-spherical lens.Specifically, it is assumed that optical lens is designed to comply withNow may be used
See that both light and infrared light chromatic aberration correction are excessive, the focal plane of infrared light shortens.On the other hand, it is assumed that optical lens is designed to
MeetNow both visible ray and infrared light chromatic aberration correction deficiency, the focal plane of infrared light are elongated.Therefore, originally
The optical lens of embodiment is configured to conform toCondition, can make optical lens have concurrently good optics into
As quality and day and night confocal characteristic.
Figure 16 is schematic diagram of the display according to the optical lens 10d of one embodiment of the invention.Optical lens 10d is arranged at one and put
Big side (Figure 16 left side；For example, thing side) and a reduced side (Figure 16 right side；For example, image side) between.As shown in figure 16,
First lens groups 20 of the optical lens 10d between Zoom Side and reduced side, there is positive diopter and be located at the first lens group
The second lens group 30 between 20 and reduced side and the aperture 14 between the first lens group 20 and the second lens group 30.
Furthermore glass cover 16 and image sensor can be set in reduced side, and its imaging plane is denoted as 18, and glass cover is saturating positioned at second
Between lens group 30 and imaging plane 18.First lens group 20 can include the optical axis 12 along optical lens 10d from Zoom Side to diminution
One first lens L1, one second lens L2, one the 3rd lens L3 and one the 4th lens L4 of side sequential, and the second lens group
30 can include one the 5th lens L5 along optical lens 10a optical axis 12 from Zoom Side to reduced side sequential, one the 6th saturating
Mirror L6 and one the 7th lens L7, the first lens L1 to the 6th lens L7 diopter be respectively it is negative, negative, positive, just, it is positive and negative, just.
In the present embodiment, the 4th lens L4 can be the non-spherical lens for including a diffraction face, and the first lens L1 and the 6th lens L6 are
Crescent lens, the second lens L2 is biconcave lens and the 3rd lens L3, the 5th lens L5 and the 7th lens L7 is biconvex lens.
In addition, the 5th lens L5 and the 6th lens L6 forms the balsaming lens of tool positive diopter.It is worth noting that, the 5th lens L5 and
There is identical radius of curvature on two sides adjacent 6th lens L6, and the two adjacent surfaces of balsaming lens can be pasted using different modes
Close, for example, between optical cement is coated on two adjacent surfaces it is glued, in a manner of mechanism member presses two adjacent surfaces etc..Optical lens 10d
Lens design parameters, profile, asphericity coefficient and diffraction face respectively as shown in table ten, table 11 and table 12, wherein table ten
One A-D represents 4 rank items, 6 rank items, 8 rank items, the 10 rank term system numerical value of aspherical multinomial (as shown in Equation 1) respectively.Table ten
Two C1-C4 represents 2 rank items, 4 rank items, 6 rank items, the 8 rank term system numerical value of diffraction face multinomial (as shown in Equation 2) respectively.
Table ten
S1 spacing is distances of surface S1 to the S2 in optical axis 12, S2 spacing be surface S2 to S3 optical axis 12 away from
From, S15 spacing and next spacing and for glass cover S15 surfaces to imaging plane 18 optical axis 12 distance.
Visible ray effective focal length (EFL of visible light)=4.02mm；
Infrared light effective focal length (EFL of NIR 850nm light)=4.03mm；
F-number (F-Number)=1.8；
Maximum field of view angle (Max.field of view, FOV)=163.6 degree；
Maximum image height (Max.Image Height)=8.914mm of imaging plane；
Camera lens overall length (total track length, TTL, S1 to imaging plane distance)=29.1mm.
Table 11
Table 12
Figure 17-Figure 18 is respectively the light sector diagram (ray fan plot) of visible ray and 850 nanometers of infrared lights, wherein X
Axle is position of the light by entrance pupil, and Y-axis is the relative number for the position that chief ray is projected to image plane (such as imaging plane 18)
Value.Figure 19 to Figure 20 is the present embodiment optical lens 10d image optics analogue data figure, and wherein Figure 19-Figure 20 is respectively 587
The diffraction optics transfer curve figure of nanometer green glow and 850 nanometers of infrared lights (modulation transfer function,
MTF), both focal plane offsets are about 53 microns.It should be noted that 555 nanometers of green glow substitution 587 can also be used to receive
The green glow of rice draws image optics analogue data figure.
Pass through embodiment 10a, 10b and 10c design, it is possible to provide it is a kind of to take into account lightweight and day and night confocal characteristic,
And relatively low manufacturing cost and the sampling image lens design of preferable image quality can be provided.
Although the present invention is disclosed above with preferred embodiment, so it is not limited to the present invention, any this area skill
Art personnel, without departing from the spirit and scope of the present invention, when can make a little change and retouching, therefore the protection model of the present invention
Enclose to work as and be defined depending on as defined in claim.In addition, any embodiment or claim of the present invention are not necessary to reach institute of the present invention
The whole purposes or advantage or feature of offer.In addition, summary part and title are intended merely to aid in patent document search to be used, and
The non-interest field for being used for limiting the present invention.
Claims (10)
- A kind of 1. optical lens, it is characterised in that including：One first lens group and one second lens group, first lens group are sequentially set with second lens group by a direction；One aperture, between first lens group and second lens group, wherein second lens group have positive diopter and Including having a lens in a diffraction face；AndThe optical lens meets following condition：WhereinFor the diffraction face diopter,For the refraction diopter of the lens, V is the Abbe number of the lens.
- A kind of 2. optical lens, it is characterised in that including：One the first lens group and second lens group with positive diopter with negative diopter, wherein first lens group and Second lens group is sequentially set by a direction, and with the power zones of the first lens group diopter and second lens group Every second lens group includes a lens in one diffraction face of tool；AndThe optical lens meets following condition：WhereinFor the diffraction face diopter,For the refraction diopter of the lens, V is the Abbe number of the lens.
- 3. optical lens as claimed in claim 1 or 2, it is characterised in that first lens group includes the lens of tool diopter Number is less than 3.
- 4. optical lens as claimed in claim 1 or 2, it is characterised in that second lens group includes the lens of tool diopter Number is less than 5.
- A kind of 5. optical lens, it is characterised in that including：One first lens group；One has the second lens group of positive diopter, and first lens group is sequentially set with second lens group by a direction；One aperture, it is arranged between first lens group and second lens group, wherein first lens group includes tool diopter Number of lenses be less than 3, the number of lenses that second lens group includes tool diopter is less than 5 and including the one saturating of one diffraction face of tool Mirror；AndThe optical lens meets following condition：If using 555 nanometers or 587 nanometers of green glows by a focal plane of the optical lens as Measuring basis, the optical lens meet 850 nanometers of infrared lights in the focal plane displacement, are less than 5 microns from the measuring basis.
- 6. the optical lens as described in claim 1,2 or 5, it is characterised in that the lens for having the diffraction face meet following bar Part：20<V<60。
- 7. the optical lens as described in claim 1,2 or 5, it is characterised in that first lens group includes the negative diopter of a tool The first lens and a negative diopter of tool the second lens.
- 8. the optical lens as described in claim 1,2 or 5, it is characterised in that the lens are non-spherical lens.
- 9. the optical lens as described in claim 1,2 or 5, it is characterised in that the diopter of the lens is just and the second lens Group further comprises the balsaming lens of a tool positive diopter and another lens of tool positive diopter.
- 10. optical lens as claimed in claim 9, it is characterised in that the lens are first more saturating further from this than another lens Lens group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610375776.0A CN107450155B (en) | 2016-05-31 | 2016-05-31 | Optical lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610375776.0A CN107450155B (en) | 2016-05-31 | 2016-05-31 | Optical lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107450155A true CN107450155A (en) | 2017-12-08 |
| CN107450155B CN107450155B (en) | 2021-10-08 |
Family
ID=60485767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610375776.0A Active CN107450155B (en) | 2016-05-31 | 2016-05-31 | Optical lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107450155B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111221099A (en) * | 2018-11-26 | 2020-06-02 | 宁波舜宇车载光学技术有限公司 | Optical lens and imaging apparatus |
| CN113791487A (en) * | 2020-05-29 | 2021-12-14 | 光芒光学股份有限公司 | Optical lens and method for manufacturing the same |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5243468A (en) * | 1991-12-06 | 1993-09-07 | Nikon Corporation | Wide angle objective lens |
| US5268790A (en) * | 1991-12-20 | 1993-12-07 | Hughes Aircraft Company | Zoom lens employing refractive and diffractive optical elements |
| US6172818B1 (en) * | 1998-06-19 | 2001-01-09 | Minolta Co., Ltd. | Zoom lens system |
| CN1503247A (en) * | 2002-11-21 | 2004-06-09 | ���Ῠ���ܴ�ع���ʽ���� | Optical syste mfor optical pickup apparatus, optical pickup apparatus and objective lens |
| EP1734393A1 (en) * | 2005-06-15 | 2006-12-20 | Ricoh Company, Ltd. | Photographic optical system, photocographic lens unit, camera and mobile information terminal |
| CN102985864A (en) * | 2010-07-15 | 2013-03-20 | Lg伊诺特有限公司 | Super wide angle optical lens system |
| JP5299028B2 (en) * | 2009-03-31 | 2013-09-25 | ペンタックスリコーイメージング株式会社 | Finder optical system for single-lens reflex cameras |
| CN103869451A (en) * | 2012-12-10 | 2014-06-18 | 大立光电股份有限公司 | Wide-angle camera lens group |
| CN104007535A (en) * | 2014-06-10 | 2014-08-27 | 舜宇光学(中山)有限公司 | Novel ultra wide angle lens |
| CN104169773A (en) * | 2012-03-29 | 2014-11-26 | 日立麦克赛尔株式会社 | Imaging lens and imaging device |
-
2016
- 2016-05-31 CN CN201610375776.0A patent/CN107450155B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5243468A (en) * | 1991-12-06 | 1993-09-07 | Nikon Corporation | Wide angle objective lens |
| US5268790A (en) * | 1991-12-20 | 1993-12-07 | Hughes Aircraft Company | Zoom lens employing refractive and diffractive optical elements |
| US6172818B1 (en) * | 1998-06-19 | 2001-01-09 | Minolta Co., Ltd. | Zoom lens system |
| CN1503247A (en) * | 2002-11-21 | 2004-06-09 | ���Ῠ���ܴ�ع���ʽ���� | Optical syste mfor optical pickup apparatus, optical pickup apparatus and objective lens |
| EP1734393A1 (en) * | 2005-06-15 | 2006-12-20 | Ricoh Company, Ltd. | Photographic optical system, photocographic lens unit, camera and mobile information terminal |
| JP5299028B2 (en) * | 2009-03-31 | 2013-09-25 | ペンタックスリコーイメージング株式会社 | Finder optical system for single-lens reflex cameras |
| CN102985864A (en) * | 2010-07-15 | 2013-03-20 | Lg伊诺特有限公司 | Super wide angle optical lens system |
| CN104169773A (en) * | 2012-03-29 | 2014-11-26 | 日立麦克赛尔株式会社 | Imaging lens and imaging device |
| CN103869451A (en) * | 2012-12-10 | 2014-06-18 | 大立光电股份有限公司 | Wide-angle camera lens group |
| CN104007535A (en) * | 2014-06-10 | 2014-08-27 | 舜宇光学(中山)有限公司 | Novel ultra wide angle lens |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111221099A (en) * | 2018-11-26 | 2020-06-02 | 宁波舜宇车载光学技术有限公司 | Optical lens and imaging apparatus |
| CN111221099B (en) * | 2018-11-26 | 2021-09-17 | 宁波舜宇车载光学技术有限公司 | Optical lens and imaging apparatus |
| CN113791487A (en) * | 2020-05-29 | 2021-12-14 | 光芒光学股份有限公司 | Optical lens and method for manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107450155B (en) | 2021-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206946087U (en) | Optical imaging system | |
| CN106324797B (en) | Optical lens | |
| CN208297807U (en) | Optical imaging lens | |
| CN109991717A (en) | Camera lens and its manufacturing method | |
| CN106443962A (en) | Optical system | |
| CN107272153A (en) | Optical lens | |
| CN101354478B (en) | Focus fixing lens | |
| CN206960763U (en) | Imaging len and camera device | |
| CN106997086A (en) | Optical imaging system | |
| CN207301457U (en) | Imaging len and camera device | |
| CN107976788A (en) | Optical imaging lens | |
| CN106886083A (en) | Optical lens | |
| CN107703604A (en) | Optical lens | |
| CN105353499B (en) | A kind of optical lens | |
| CN103969794A (en) | Camera head and optical imaging lens | |
| CN108292025A (en) | Imaging lens | |
| CN207799218U (en) | Optical imaging lens | |
| CN111323895A (en) | Lens and manufacturing method thereof | |
| CN109061858A (en) | Zoom lens | |
| CN108681035A (en) | Super large aperture tight shot | |
| CN108227115A (en) | Optical lens | |
| CN107450155A (en) | Optical lens | |
| CN207008163U (en) | Imaging lens | |
| TWI801326B (en) | Optical lens | |
| CN206773280U (en) | Pick-up lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |