CN107037513A - Fresnel Lenses and electronic installation and optical module - Google Patents
Fresnel Lenses and electronic installation and optical module Download PDFInfo
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- CN107037513A CN107037513A CN201710370749.9A CN201710370749A CN107037513A CN 107037513 A CN107037513 A CN 107037513A CN 201710370749 A CN201710370749 A CN 201710370749A CN 107037513 A CN107037513 A CN 107037513A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
Abstract
The invention discloses a kind of Fresnel curved surface processing method, including step：The crown parameter on given cross-sectional curve that the diameter of S110, setting along default Fresnel curved surface is intercepted；The crown parameter includes crown spacing, crown height, the corresponding curvilinear equation of crown and presets maximum allowable mismachining tolerance；S120, the coordinate points on given cross-sectional curve with the unique corresponding transition arc of each crown are calculated according to the crown parameter；S130, the coordinate points with the unique corresponding transition arc of each crown according to determine standard section curve；S140, by the standard section curve rotate 180 °, determine arc transition processing after standard Fresnel curved surface.The invention provides a kind of Fresnel curved surface processing method and processing path generation method and Fresnel Lenses, it is to avoid the appearance of Fresnel curved surface processing path mutation, realizes its smooth processing, and realize the controllable adjustment of error at curved surface mutation.
Description
Technical field
The present invention relates to Parts manufacturing technology field, more particularly to a kind of Fresnel Lenses and electronic installation and optical mode
Block.
Background technology
Fresnel Lenses is also known as Fresnel lens, and its specular surface one side is smooth surface, and another side imprinting is ascending
Concentric circles, its texture is to be penetrated and designed according to relative sensitivity and accepts angle requirement using the interference and disturbing of light.
Fresnel Lenses is because with light weight, focal length is short, bore is big, thickness of thin, ranging is remote, optically focused is strong etc. many has
Point, in the field such as beam shaping, information detection and imaging extensive application.For example, slide projector, film magnifying glass, infrared spy
Survey device etc..
In order to obtain high-quality Fresnel Lenses device, many researchers deploy to its efficient, high-precision processing mode
Further investigation.Common processing method has laser writing technology, photosensitive glass hot-forming method, replica technology, melting photoresist
Technology, focused-ion-beam lithography technology, nano imprint lithography etc..These methods, which can be used to processing, has superperformance
Fresnel Lenses device.But it is due to long processing time, cost is high and machining accuracy is difficult to control to, and is only applicable to machining cell
The Fresnel Lenses device that face shape is simple, required precision is not high.
Comparatively, micro injection molding is a kind of inexpensive, efficient processing method, and its difficult point is Fresnel Lenses
Effective processing of core rod.At present, Fresnel Lenses core rod is typically machined using ultraprecise.Wherein, the micro- milling of diamond is adopted
Fresnel Lenses core rod is obtained with the mode processed one by one, processing efficiency is low, cost is higher；Although the micro- grinding of diamond can be obtained
High-precision Fresnel Lenses core rod is obtained, but operates excessively complexity, and the process-cycle is long.In view of problem above, ultra-precise cutting is
Research emphasis as processing Fresnel Lenses core rod, it realizes the efficient of complex devices by fast tool servo or slow knife servo
Rate, high-precision processing.
Traditional ultra-precise cutting machining path for curved surface smoother device, with higher processing efficiency and add
Work precision, but for rough, or even there is the curved surface of mutation, it can cause lathe using traditional ultra-precise cutting machining path
Shake, causes mismachining tolerance increase, even causes the collision of cutter and workpiece.
The content of the invention
In order to solve the above technical problems, the invention provides a kind of Fresnel curved surface processing method and machining path generation side
Method and Fresnel Lenses and electronic installation, it is to avoid the appearance of Fresnel curved surface processing path mutation, realize its smooth processing,
And realize the controllable adjustment of error at curved surface mutation.
The technical scheme that the present invention is provided is as follows：
The invention discloses a kind of Fresnel curved surface processing method, including step：S110, set along default Fresnel curved surface
Diameter interception given cross-sectional curve on crown parameter；The crown parameter includes crown spacing, crown height, crown pair
The curvilinear equation answered and default maximum allowable mismachining tolerance；S120, calculated on given cross-sectional curve according to the crown parameter
With the coordinate points of the unique corresponding transition arc of each crown；With the unique corresponding transition circle of each crown described in S130, basis
The coordinate points of arc determine standard section curve；S140, by the standard section curve rotate 180 °, determine arc transition processing after
Standard Fresnel curved surface.
The present invention is by designing a kind of Fresnel curved surface processing method, it is to avoid Fresnel curved surface processing path mutation goes out
It is existing, its smooth processing is realized, and realize the controllable adjustment of error at curved surface mutation.
It is further preferred that the step S120 " according to the crown parameter calculate on given cross-sectional curve with each
The coordinate points of the unique corresponding transition arc of crown " specifically include following steps：S121, the curvilinear equation according to crown, crown
Height and default maximum allowable mismachining tolerance calculate the coordinate at the first point of contact for obtaining transition arc corresponding with crown；
S122, calculate according to the coordinate at the first point of contact of transition arc the slope for obtaining the first point of contact, the second point of contact of transition arc
Coordinate and the horizontal range at the first point of contact and the second point of contact；S123, according to the slope at the first point of contact calculate obtain transition arc
Circular arc angle；S124, obtained with the horizontal range at the second point of contact and the circular arc angle calcu-lation of transition arc according to the first point of contact
Obtain the radius of transition arc；S125, the radius according to transition arc, the circular arc angle of transition arc and the coordinate at the first point of contact
Calculate the central coordinate of circle for obtaining transition arc；S126, the radius according to transition arc, the circular arc angle of transition arc and transition
The central coordinate of circle of circular arc obtains the coordinate points with the unique corresponding transition arc of crown.
Invention additionally discloses a kind of Fresnel curved surface processing path generation method, including step：S210, according to given cross-sectional
The crown parameter of curve carries out arc transition processing to default Fresnel curved surface, obtains standard Fresnel curved surface；S220, traversal institute
The processing stand on standard Fresnel curved surface is stated, the corresponding tool arc centre coordinate of each processing stand is obtained, machining path is generated.
The present invention is before Fresnel curved surface is using traditional ultra-precise cutting machining path generation, according to Fresnel curved surface
The maximum allowable mismachining tolerance size of crown smoothly transits crown progress circular arc, it is ensured that the Second Order Continuous at transition node, together
When, realize the control of the crown worst error of Fresnel curved surface.
It is further preferred that the step S210 specifically includes step：The diameter of S110, setting along default Fresnel curved surface
Crown parameter on the given cross-sectional curve of interception；The crown parameter includes crown spacing, crown height, the corresponding song of crown
Line equation and default maximum allowable mismachining tolerance；S120, according to the crown parameter calculate on given cross-sectional curve with each
The coordinate points of the unique corresponding transition arc of crown；S130, the seat according to the unique corresponding transition arc of each crown
Punctuate determines standard section curve；S140, the standard section curve rotated 180 °, obtain the luxuriant and rich with fragrance alunite of standard after arc transition
That curved surface.
It is further preferred that the step S120 " according to the crown parameter calculate on given cross-sectional curve with each
The coordinate points of the unique corresponding transition arc of crown " specifically include following steps：S121, the curvilinear equation according to crown, crown
Height and default maximum allowable mismachining tolerance calculate the coordinate at the first point of contact for obtaining transition arc corresponding with crown；
S122, calculate according to the coordinate at the first point of contact of transition arc the slope for obtaining the first point of contact, the second point of contact of transition arc
Coordinate and the horizontal range at the first point of contact and the second point of contact；S123, according to the slope at the first point of contact calculate obtain transition arc
Circular arc angle；S124, obtained with the horizontal range at the second point of contact and the circular arc angle calcu-lation of transition arc according to the first point of contact
Obtain the radius of transition arc；S125, the radius according to transition arc, the circular arc angle of transition arc and the coordinate at the first point of contact
Calculate the central coordinate of circle for obtaining transition arc；S126, the radius according to transition arc, the circular arc angle of transition arc and transition
The central coordinate of circle of circular arc obtains the coordinate points with the unique corresponding transition arc of crown.
Invention additionally discloses a kind of Fresnel Lenses, added using above-mentioned Fresnel curved surface processing path generation method
Work.
The present invention is for the processing of Fresnel curved surface ultra-precise cutting, using tip circular-arc transition machining path generating algorithm.
The core rod of Fresnel Lenses, Fresnel Lenses is processed using this method, and is noted using the Fresnel Lenses core rod after processing
Modeling realizes that Fresnel Lenses is produced in batches.
The invention also discloses a kind of electronic installation, including Fresnel Lenses, the Fresnel Lenses is above-mentioned Fresnel
Lens.
The invention also discloses a kind of optical module, including Fresnel Lenses, the Fresnel Lenses is above-mentioned Fresnel
Lens.
Compared with prior art, crown of the present invention uses arc transition, it is to avoid the appearance of machining path mutation, it is ensured that
The Second Order Continuous of machining path, so as to alleviate the shake of lathe in process, improves Fresnel surface machining accuracy
And efficiency, and then the batch production of Fresnel Lenses is promoted, its production cost is reduced, makes it obtain more widely should
With.
Brief description of the drawings
Below by clearly understandable mode, preferred embodiment is described with reference to the drawings, the present invention is given furtherly
It is bright.
Fig. 1 is a kind of key step schematic diagram of Fresnel curved surface processing method of the invention；
Fig. 2 is a kind of top view of the Fresnel Lenses of Fresnel curved surface processing method of the invention；
Fig. 3 intercepts the sectional view after Fresnel Lenses along straight line ab for a kind of Fresnel curved surface processing method of the invention；
Fig. 4 is Fig. 3 partial enlarged drawing.
Fig. 5 is a kind of key step schematic diagram of Fresnel curved surface processing path generation method of the invention.
Embodiment
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, control is illustrated below
The embodiment of the present invention.It should be evident that drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing, and obtain other embodiments.
To make only to schematically show part related to the present invention in simplified form, each figure, they are not represented
Its as product practical structures.In addition, so that simplified form is readily appreciated, there is identical structure or function in some figures
Part, only symbolically depicts one of those, or has only marked one of those.Herein, " one " is not only represented
" only this ", can also represent the situation of " more than one ".
Fig. 1 is a kind of key step schematic diagram of Fresnel curved surface processing method of the invention, as shown in figure 1, a kind of luxuriant and rich with fragrance alunite
That curved surface processing method, including step：On the given cross-sectional curve that the diameter of S110, setting along default Fresnel curved surface is intercepted
Crown parameter；The crown parameter includes crown spacing, crown height, the corresponding curvilinear equation of crown and preset maximum allowable add
Work error；S120, according to the crown parameter calculate on given cross-sectional curve with the unique corresponding transition arc of each crown
Coordinate points；S130, the coordinate points with the unique corresponding transition arc of each crown according to determine standard section curve；
S140, by the standard section curve rotate 180 °, determine arc transition processing after standard Fresnel curved surface.
The present invention is by designing a kind of Fresnel curved surface processing method, it is to avoid Fresnel curved surface processing path mutation goes out
It is existing, its smooth processing is realized, and realize the controllable adjustment of error at curved surface mutation.
It is preferred that, the step S120 " is calculated on given cross-sectional curve with each crown only according to the crown parameter
The coordinate points of one corresponding transition arc " specifically include following steps：S121, the curvilinear equation according to crown, crown height with
And default maximum allowable mismachining tolerance calculates the coordinate at the first point of contact for obtaining transition arc corresponding with crown；S122, basis
The coordinate at the first point of contact of transition arc calculates the slope for obtaining the first point of contact, the coordinate at the second point of contact of transition arc and the
The horizontal range at one point of contact and the second point of contact；S123, calculated according to the slope at the first point of contact and obtain the circular arc angle of transition arc；
S124, the horizontal range according to the first point of contact and the second point of contact and transition arc circular arc angle calcu-lation obtain transition arc
Radius；S125, the radius according to transition arc, the circular arc angle of transition arc and the coordinate at the first point of contact, which are calculated, obtains transition
The central coordinate of circle of circular arc；S126, the radius according to transition arc, the center of circle of the circular arc angle of transition arc and transition arc are sat
Mark obtains the coordinate points with the unique corresponding transition arc of crown.
Specifically, the Fresnel curved surface processing method of the present invention is described in detail below.
Because Fresnel Lenses is rotationally symmetric body, therefore, when analyzing the machining path of Fresnel Lenses, it is only necessary to point
Analyse the machining path in its section.Fig. 2 is the top view of Fresnel Lenses, from Fig. 2 cathetus ab directions (i.e. Fresnel curved surface
Diametric(al)) after interception, obtain corresponding sectional view as shown in Figure 3.From figure 3, it can be seen that Fresnel Lenses section is near
Seemingly it is serrated, at each " crown " place, section is Non-smooth surface, there is mutation, using traditional ultra-precise cutting machining path
When being processed, there is mutation in path at this, can cause lathe shake, unstable, and then influence crudy, and influence journey
Degree is uncontrollable.
In order to avoid the violent effect of jitter machining accuracy of lathe, the present invention is justified using arc transition algorithm to " crown "
Arc transition.Fig. 3 intercepts the sectional view after Fresnel Lenses along straight line ab for a kind of Fresnel curved surface processing method of the invention.Under
Arc transition algorithm implementation process is made a concrete analysis of by taking " crown " of circles mark in Fig. 3 as an example in face.
If the curvilinear equation on the left of " crown " is f (x), transition arc is ec, and the center of circle of transition arc correspondence circle is o, and e is
First point of contact of transition arc and standard section curve, c is the second point of contact of transition arc and standard section curve, and i is f (x)
In the tangent line and the angle of trunnion axis of e points, crown is highly h, and the margin of error of crown is h0, R is the circle of transition arc
Arc radius, q is the arc angle of transition arc, and l is e and c horizontal range, its schematic diagram as shown in figure 3, wherein, f (x), h,
h0To be known.
1) calculate and obtain and crown pair according to the curvilinear equation of crown, crown height and default maximum allowable mismachining tolerance
First point of contact e of the transition arc answered coordinate, asks for f (x) and transition arc point of contact e (xe, ye):
2) slope for calculating the first point of contact of acquisition according to the coordinate at the first point of contact of transition arc is：
Ask for the slope k at the e of the first point of contact of point of contact：
K=f ' (xe) (2)
3) coordinate and the at the second point of contact for obtaining transition arc is calculated according to the coordinate at the first point of contact of transition arc
The horizontal range at one point of contact and the second point of contact, asks for e, c horizontal range l：
If the x coordinate of c points is xc, then
4) transition is obtained according to the circular arc angle calcu-lation of the horizontal range and transition arc at the first point of contact and the second point of contact
The radius of circular arc；Fig. 4 is Fig. 3 circle partial enlarged drawing.Because circular arc ec and f (x) is tangent, therefore, circular arc angle q is equal to：
5) transition is obtained according to the circular arc angle calcu-lation of the horizontal range and transition arc at the first point of contact and the second point of contact
The radius of circular arc；Ask for arc radius R：
R+R*cos (180 ° of-q)=l
Try to achieve：
R=l/ (1+cos (180 ° of-q)) (5)
6) calculated according to the coordinate of the radius of transition arc, the circular arc angle of transition arc and the first point of contact and obtain transition
The central coordinate of circle of circular arc, asks for center of arc o coordinate:
By above-mentioned algorithm, can in the hope of transition arc arc radius R, central coordinate of circle and circular arc angle, so as to obtain
Unique transition arc, and the transition arc has second order continuity with " crown ".The right circular arc of given cross-sectional curve is excessive
Algorithm is just no longer described here as this.
As can be seen that the transition arc of each " crown " of given cross-sectional curve is by curvilinear equation f (x) and default maximum
Allow mismachining tolerance h0Uniquely determine.
7) obtained and tooth according to the central coordinate of circle of the radius of transition arc, the circular arc angle of transition arc and transition arc
The coordinate points of sharp unique corresponding transition arc, are determined according to the coordinate points with the unique corresponding transition arc of each crown
Standard section curve.By the standard section curve rotation 180 degree of acquisition, that is, the fresnel lens surface after arc transition is obtained,
Then, the fresnel lens surface for acquisition is realized using traditional ultra-precise cutting processing path generation method finally processes road
The generation in footpath.
Fig. 5 is a kind of key step schematic diagram of Fresnel curved surface processing path generation method of the invention, as shown in figure 5,
Including step：S210, arc transition processing carried out to default Fresnel curved surface according to the crown parameter of given cross-sectional curve, obtained
Standard Fresnel curved surface；Processing stand on S220, the traversal standard Fresnel curved surface, obtains the corresponding point of a knife of each processing stand
Center of arc's coordinate, generates machining path.
The present invention is before Fresnel curved surface is using traditional ultra-precise cutting machining path generation, according to Fresnel curved surface
The maximum allowable mismachining tolerance size of crown smoothly transits crown progress circular arc, it is ensured that the Second Order Continuous at transition node, together
When, realize the control of the crown worst error of Fresnel curved surface.
It is preferred that, the step S210 specifically includes step：What the diameter of S110, setting along default Fresnel curved surface was intercepted
Crown parameter on given cross-sectional curve；The crown parameter includes crown spacing, crown height, the corresponding curvilinear equation of crown
With default maximum allowable mismachining tolerance；S120, calculated on given cross-sectional curve with each crown only according to the crown parameter
The coordinate points of one corresponding transition arc；S130, the coordinate points with the unique corresponding transition arc of each crown according to are true
Calibrate quasi- cross section curve；S140, the standard Fresnel rotated the standard section curve after 180 °, acquisition arc transition are bent
Face.
It is preferred that, the step S120 " is calculated on given cross-sectional curve with each crown only according to the crown parameter
The coordinate points of one corresponding transition arc " specifically include following steps：S121, the curvilinear equation according to crown, crown height with
And default maximum allowable mismachining tolerance calculates the coordinate at the first point of contact for obtaining transition arc corresponding with crown；S122, basis
The coordinate at the first point of contact of transition arc calculates the slope for obtaining the first point of contact, the coordinate at the second point of contact of transition arc and the
The horizontal range at one point of contact and the second point of contact；S123, calculated according to the slope at the first point of contact and obtain the circular arc angle of transition arc；
S124, the horizontal range according to the first point of contact and the second point of contact and transition arc circular arc angle calcu-lation obtain transition arc
Radius；S125, the radius according to transition arc, the circular arc angle of transition arc and the coordinate at the first point of contact, which are calculated, obtains transition
The central coordinate of circle of circular arc；S126, the radius according to transition arc, the center of circle of the circular arc angle of transition arc and transition arc are sat
Mark obtains the coordinate points with the unique corresponding transition arc of crown.
Specifically, the fresnel lens surface obtained after being handled by arc transition can directly participate in adding as free form surface
Calculated in work coordinates measurement algorithm.
Invention additionally discloses a kind of Fresnel Lenses, added using above-mentioned Fresnel curved surface processing path generation method
Work.
Crown of the present invention uses arc transition, it is to avoid the appearance of machining path mutation, it is ensured that the second order of machining path
Continuously, so as to alleviate the shake of lathe in process, Fresnel surface machining accuracy and efficiency is improved, the party is utilized
Method processing Fresnel Lenses, the core rod of Fresnel Lenses, and it is luxuriant and rich with fragrance using the Fresnel Lenses core rod progress injection realization after processing
Nie Er lens are produced in batches, are promoted the batch production of Fresnel Lenses, are reduced its production cost, obtain it more extensive
Application.
The invention also discloses a kind of electronic installation, including Fresnel Lenses, the Fresnel Lenses is above-mentioned Fresnel
Lens.Specifically, Fresnel Lenses of the present invention can as the electronic products such as mobile phone, flat board camera, also can be applicable to magic lantern
In the equipment such as machine, film magnifying glass, infrared detector.
The invention also discloses a kind of optical module, including Fresnel Lenses, the Fresnel Lenses is above-mentioned Fresnel
Lens.Fresnel Lenses of the present invention can be widely applied to the neck such as beam shaping, information detection and imaging as optical module
Domain.
It should be noted that the content such as information exchange, implementation procedure in the present apparatus between each module and the above method are real
Apply example and be based on same design, particular content can be found in the narration in the inventive method embodiment, and here is omitted.
It should be noted that above-described embodiment can independent assortment as needed.Described above is only the preferred of the present invention
Embodiment, it is noted that for those skilled in the art, is not departing from the premise of the principle of the invention
Under, some improvements and modifications can also be made, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of Fresnel curved surface processing method, it is characterised in that including step：
The crown parameter on given cross-sectional curve that the diameter of S110, setting along default Fresnel curved surface is intercepted；The crown ginseng
Number includes crown spacing, crown height, the corresponding curvilinear equation of crown and presets maximum allowable mismachining tolerance；
S120, the seat on given cross-sectional curve with the unique corresponding transition arc of each crown calculated according to the crown parameter
Punctuate；
S130, the coordinate points with the unique corresponding transition arc of each crown according to determine standard section curve；
S140, by the standard section curve rotate 180 °, determine arc transition processing after standard Fresnel curved surface.
2. Fresnel curved surface processing method as claimed in claim 1, it is characterised in that the step S120 is " according to the tooth
Sharp parameter calculates the coordinate points with the unique corresponding transition arc of each crown on given cross-sectional curve " specifically include following step
Suddenly：
S121, the curvilinear equation according to crown, crown height and default maximum allowable mismachining tolerance are calculated and obtained and crown pair
The coordinate at the first point of contact of the transition arc answered；
S122, calculate according to the coordinate at the first point of contact of transition arc the slope for obtaining the first point of contact, the second of transition arc cut
The coordinate of point and the horizontal range at the first point of contact and the second point of contact；
S123, calculated according to the slope at the first point of contact and obtain the circular arc angle of transition arc；
S124, the horizontal range according to the first point of contact and the second point of contact and transition arc circular arc angle calcu-lation obtain transition circle
The radius of arc；
S125, the radius according to transition arc, the circular arc angle of transition arc and the coordinate at the first point of contact, which are calculated, obtains transition
The central coordinate of circle of circular arc；
S126, the radius according to transition arc, the circular arc angle of transition arc and the central coordinate of circle acquisition of transition arc and tooth
The coordinate points of sharp unique corresponding transition arc.
3. a kind of Fresnel curved surface processing path generation method, it is characterised in that including step：
S210, arc transition processing carried out to default Fresnel curved surface according to the crown parameter of given cross-sectional curve, obtain standard
Fresnel curved surface；
Processing stand on S220, the traversal standard Fresnel curved surface, obtains the corresponding tool arc center of each processing stand and sits
Mark, generates machining path.
4. Fresnel curved surface processing path generation method as claimed in claim 1, it is characterised in that the step S210 is specific
Including step：
The crown parameter on given cross-sectional curve that the diameter of S110, setting along default Fresnel curved surface is intercepted；The crown ginseng
Number includes crown spacing, crown height, the corresponding curvilinear equation of crown and presets maximum allowable mismachining tolerance；
S120, the seat on given cross-sectional curve with the unique corresponding transition arc of each crown calculated according to the crown parameter
Punctuate；
S130, the coordinate points with the unique corresponding transition arc of each crown according to determine standard section curve；
S140, by the standard section curve rotate 180 °, obtain arc transition after standard Fresnel curved surface.
5. Fresnel curved surface processing path generation method as claimed in claim 4, it is characterised in that the step S120 " roots
The coordinate points on given cross-sectional curve with the unique corresponding transition arc of each crown are calculated according to the crown parameter " specific bag
Include following steps：
S121, the curvilinear equation according to crown, crown height and default maximum allowable mismachining tolerance are calculated and obtained and crown pair
The coordinate at the first point of contact of the transition arc answered；
S122, calculate according to the coordinate at the first point of contact of transition arc the slope for obtaining the first point of contact, the second of transition arc cut
The coordinate of point and the horizontal range at the first point of contact and the second point of contact；
S123, calculated according to the slope at the first point of contact and obtain the circular arc angle of transition arc；
S124, the horizontal range according to the first point of contact and the second point of contact and transition arc circular arc angle calcu-lation obtain transition circle
The radius of arc；
S125, the radius according to transition arc, the circular arc angle of transition arc and the coordinate at the first point of contact, which are calculated, obtains transition
The central coordinate of circle of circular arc；
S126, the radius according to transition arc, the circular arc angle of transition arc and the central coordinate of circle acquisition of transition arc and tooth
The coordinate points of sharp unique corresponding transition arc.
6. a kind of Fresnel Lenses, it is characterised in that added using the Fresnel curved surface described in the claims 3-5 any one
Work path generating method is processed.
7. a kind of electronic installation, including Fresnel Lenses, it is characterised in that the Fresnel Lenses is the institute of the claims 6
The Fresnel Lenses stated.
8. a kind of optical module, including Fresnel Lenses, it is characterised in that the Fresnel Lenses is the institute of the claims 6
The Fresnel Lenses stated.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017101007957 | 2017-02-23 | ||
| CN201710100795 | 2017-02-23 |
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| CN107037513A true CN107037513A (en) | 2017-08-11 |
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ID=59540002
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| JP2009184066A (en) * | 2008-02-06 | 2009-08-20 | Jtekt Corp | Method of machining concave fresnel lens shape member, and concave fresnel lens shape member |
| CN102645686A (en) * | 2012-05-18 | 2012-08-22 | 哈尔滨工业大学 | Design method of uniformly-converging Fresnel lens |
| CN106181688A (en) * | 2016-07-14 | 2016-12-07 | 常州湖南大学机械装备研究院 | A kind of method for grinding of Fresnel Lenses mould |
| CN205982817U (en) * | 2016-02-26 | 2017-02-22 | 长春车格斯科技有限公司 | Image display device |
-
2017
- 2017-05-23 CN CN201710370749.9A patent/CN107037513A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009184066A (en) * | 2008-02-06 | 2009-08-20 | Jtekt Corp | Method of machining concave fresnel lens shape member, and concave fresnel lens shape member |
| CN102645686A (en) * | 2012-05-18 | 2012-08-22 | 哈尔滨工业大学 | Design method of uniformly-converging Fresnel lens |
| CN205982817U (en) * | 2016-02-26 | 2017-02-22 | 长春车格斯科技有限公司 | Image display device |
| CN106181688A (en) * | 2016-07-14 | 2016-12-07 | 常州湖南大学机械装备研究院 | A kind of method for grinding of Fresnel Lenses mould |
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