CN102935826B - Method for designing special lens - Google Patents
Method for designing special lens Download PDFInfo
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- CN102935826B CN102935826B CN201210521307.7A CN201210521307A CN102935826B CN 102935826 B CN102935826 B CN 102935826B CN 201210521307 A CN201210521307 A CN 201210521307A CN 102935826 B CN102935826 B CN 102935826B
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Abstract
The invention provides a method for designing a special lens of a rearview mirror of an automobile. The method comprises the following steps of: a, using a plane mirror as a designed initial prototype lens; b, designing a special lens outline and an installing position according to a use environment, testing and regulating the design by using the prototype lens; c, based on the outline and position design, referencing an image of the prototype lens to relevant regions behind the automobile for dividing visual regions; d, dividing based on the outline, the position and the visual regions, calculating and testing a curvature and an inclination of each visual region and making a new prototype lens according to the curvature and inclination of each visual region; and e, ending the design when the new prototype lens reaches the design requirement of the prototype lens, and otherwise, returning to the step b for regulating the design. According to the method for designing the special lens, provided by the invention, a plurality of visual regions can be formed on one lens through changes of the positions, the size, the curvature and the inclination, so that a plurality of blind regions of the single-curvature lens can be eliminated, the view field of a driver is effectively enlarged; and meanwhile, due to smooth connection among the visual regions, images in all visual regions are naturally continuous, jump, excursion and boundary of the images among the visual regions on a mirror surface are avoided causing illusion to a driver.
Description
Technical field
The present invention relates to the lens design method of the external mirror having indicator light of automobile, relate in particular to a kind of method of designing with a plurality of vision areas and the naturally continuous special-shaped eyeglass of mirror image.
Background technology
Automobile has become the important traffic of human society and transportation means.In the process of driving a car, driver need to observe automobile side rear situation by automobile rearview mirror.
Existing rear-view mirror design method is simple, the eyeglass of designing adopts single curvature, there is more blind area, when driver's lane change or turning, being difficult to observe side sends a car, during driving, be difficult to observe under wheel and wheel peripheral situation, during reversing, be difficult to observe tailstock portion and the upper and lower obstacle of afterbody, during parking, be difficult to observe the frame line on curb or parking stall.
Although have its driver of part vehicle by a plurality of back mirrors that install additional the scope of broadening one's vision, also have vehicle by the Reverse Sensor installing additional, to understand the distance of the tailstock and rear obstacle, these behave programs complexity, expense are high, also not directly perceived.Some vehicle is to the little convex mirror of bonding one side on back mirror to obtain with great visual angle, but bonding little convex lens easily comes off, and also affects attractive in appearance; Especially, the image in little convex lens and the image in back mirror are misfitted, and easily cause driver visually to judge by accident.The power actuated vehicles such as automobile are in operational process, and driver comes observation side back car and rear situation by the outer sided mirror unit of car.Because common backsight minute surface is single curvature, the visual field is limited, is mainly used in observing vehicle rear side, can not see sending a car in positive side, tailstock obstacle, front and back wheel and the road surface of cutting.
Thus, industry needs a kind of new special-shaped lens design method, so that wide-field special-shaped eyeglass to be provided.
Summary of the invention
In order to reach above-mentioned purpose, the present invention aims to provide a kind of special-shaped lens design method for automobile rearview mirror, comprises the steps: the initial prototype eyeglass that (a) used as design with planar optics; (b) according to designing requirement and environment for use, design special-shaped eyeglass profile and installation site, and with prototype eyeglass, design is tested and adjusted; (c) based on profile and Position Design, reference prototypes eyeglass to car after the reflection of relevant range, then carry out vision area division according to designing requirement; (d) profile based on described, position and vision area are divided, and according to designing requirement, calculate, test out curvature and the inclination angle of each vision area and make accordingly new prototype eyeglass; (e) new prototype eyeglass reaches special-shaped lens design and requires to finish design, otherwise returns to (b) adjusted design.
In some embodiment, step (b) need to be determined according to the standard heights of the chaufeur of the type of described automobile, purposes, moulding and described automobile profile and the installation site of described special-shaped eyeglass, wherein said profile comprises shape and the size of eyeglass, and described installation site comprises the relative position relation with described automobile driver.
In some embodiment, step (c) comprises following little step:
(c1) vision area of the zones of different situation after the described car of a plurality of reflections is set on described prototype eyeglass, between each vision area, is provided with interval.
In some embodiment, described vision area is divided into three groups: first group is the minute surface part near vehicle body, and on it, part is used for reflecting vehicle body lateral surface, and its underpart is for reflecting the ground under vehicle body lateral surface; The 3rd group is the minute surface part away from vehicle body, and its underpart is used for reflecting that car nearside lame is with exterior domain, and on it, part is for reflecting car nearside lame car rear area in addition; Second group between first group and the 3rd group, its underpart is used for reflecting car nearside lame, on it, part is for reflecting the car rear area of car nearside lame.
In some embodiment, described vision area comprises: 1) top, car predecessor left/right outside, 2) top, left/right outside, vehicle body middle part, 3) top, tailstock left/right outside, 4) Qianmen, 5) back door, 6) tailstock left/right outside, 7) place is cut, 8 in left/right front-wheel outside) left/right trailing wheel outside cuts place, 9) ground outside tailstock left/right, 10) car left/right side line car rear, 11) car left/right side, 12) car rear beyond car left/right side line, 13) beyond car left/right side line.
In some embodiment, step (c) also comprises following little step:
(c2) reference plane of specifying three bench mark Construction designings to use in described special-shaped lens periphery; And
(c3) according to the spatial coordinates calculation of the eyes of described chaufeur, described vision area and described vision area reflecting regional, go out the curvature of vision area described in each and with respect to the inclination angle of described reference plane, make vision area described in each can either accurately clearly reflect designated area, make again vision area mirror image described in each be tending towards the mirror image of plane mirror.
In some embodiment, after calculating the curvature and inclination angle of special-shaped each vision area of eyeglass, select identical with corresponding vision area curvature but area is not more than one group of sample eyeglass of corresponding vision area, by the design inclination angle of corresponding vision area, be fixed on a substrate that is parallel to described reference plane, as described new prototype eyeglass.
In some embodiment, described sample eyeglass is positioned on the position of the corresponding described vision area of described substrate, and identical with the height of described vision area.
In some embodiment, described sample eyeglass is from the sample lens set of prior making, and this sample lens set comprises many pieces and has the eyeglass that is less than vision area size and meets vision area design curvature.
In some embodiment, in abovementioned steps (b), (c), (d), described prototype eyeglass is arranged on described position and is tested, then according to test data, the design of special-shaped eyeglass is tested, adjusted and optimizes, until the design of special-shaped eyeglass reaches satisfied effect.
In some embodiment, described in each between vision area by Bicubic Spline Surface smooth connection, by described in each between vision area gap width and spline surface parameter design and makes all vision area mirror images naturally continuously.
According to special-shaped lens design method of the present invention, can on an eyeglass, in the variation by position, size, curvature and inclination angle, form a plurality of vision areas, to eliminate a plurality of blind areas of single curvature eyeglass, effectively expand driver's field range; And smooth connection between each vision area, make each vision area mirror image naturally continuous, avoided on minute surface mirror image jump, skew and demarcation line between each vision area to cause illusion to driver.
By reference to the accompanying drawings, according to below by example, illustrate that the description of purport of the present invention can know other aspects of the present invention and advantage.
Accompanying drawing explanation
By reference to the accompanying drawings, by below describing in detail, can more clearly understand above-mentioned and other feature and advantage of the present invention, wherein:
Fig. 1 is the special-shaped lens design diagram of circuit of the embodiment of the present invention;
Fig. 2 is that the special-shaped eyeglass vision area of the embodiment of the present invention is divided schematic diagram.
The specific embodiment
Referring to the accompanying drawing of the embodiment of the present invention, below the present invention will be described in more detail.Yet the present invention can be with many multi-form realizations, and should not be construed as the restriction of the embodiment being subject in this proposition.On the contrary, it is abundant and complete open in order to reach proposing these embodiment, and makes those skilled in the art understand scope of the present invention completely.In these accompanying drawings, for clarity sake, may carry out amplifying or distortion to the size in layer and region and relative size.
Referring now to Fig. 1 describes according to the special-shaped lens design method of the embodiment of the present invention.
In the present embodiment, the motor omnibus left side back mirror of take is example, describes according to special-shaped lens design figure of the present invention.Yet, the invention is not restricted to this, but can be applicable to any back mirror of any type of vehicle.
According in the special-shaped lens design method of the present embodiment, at step S101, the initial prototype eyeglass using as design with planar optics.
At step S102, the special-shaped eyeglass profile of Environment Design and the installation site of according to designing requirement and special-shaped eyeglass, using, and test and adjust designing with prototype eyeglass.The environment that special-shaped eyeglass is used comprises the standard heights of type, purposes, moulding and the described automobile driver of described automobile, wherein said profile comprises shape and the size of described eyeglass, and described installation site comprises the relative position relation of special-shaped eyeglass and described automobile driver.
According to this car function and usage, whole size and styling design, its back mirror lens design is 200*600mm oblong, be arranged on the 400mm place, the place ahead of headstock left and right side, driver's standard heights is 1700mm, calculates accordingly or measure the parameters such as rear-vision mirror face center-point and driver's distance and angle.Described parameter can be used for determining the minute surface reflection that driver can observe on seat and the position of videoing on the minute surface of place.Then, with prototype eyeglass, above-mentioned design is tested to identification.
At step S103, based on described profile and Position Design, reference prototypes eyeglass to car after the reflection of relevant range, then carry out vision area division according to designing requirement.
In the present embodiment, there is forward and backward car door in this motor omnibus left side, for passenger getting on/off.The tree crown of its both sides landscape tree of the road that this garage is walked is large and low, often has branch by heavy snow, depressed or hung down and affect Vehicle Driving Cycle by large wind folding.Driver need to observe forward and backward car door passenger getting on/off situation by left side back mirror; When turning and move backward, need to observe by back mirror the distance of roof and sagging branch; Obstacle after also needing to observe car by back mirror during reversing and under taking turns; During parking, need to observe the distance of wheel and curb or the parking stall frame line under wheel by back mirror.
Therefore, described vision area is divided into three groups: first group is the minute surface part near vehicle body, and on it, part is used for reflecting vehicle body lateral surface, and its underpart is for reflecting the ground under vehicle body lateral surface; The 3rd group is the minute surface part away from vehicle body, and its underpart is used for reflecting that car nearside lame is with exterior domain, and on it, part is for reflecting car nearside lame car rear area in addition; Second group between first group and the 3rd group, its underpart is used for reflecting car nearside lame, on it, part is for reflecting the car rear area of car nearside lame.
Particularly, described vision area comprises: 1) car predecessor left-external side top, 2) left-external side top, vehicle body middle part, 3) tailstock left-external side top, 4) Qianmen, 5) back door, 6) tailstock left-external side, 7) place is cut, 8 in the near front wheel outside) left rear wheel outside cuts place, 9) tailstock left-external side ground, 10) car left-side course car rear, 11) car left side side, 12) car rear beyond car left-side course, 13) beyond car left-side course.
Should be understood that and the invention is not restricted to these vision areas, but can comprise any suitable vision area.Particularly, comprising: 1) the right outside side of car predecessor top, 2) right outside side top, vehicle body middle part, 3) the right outside side of tailstock top, 4) Qianmen, 5) back door, 6) the right outside side of the tailstock, 7) place is cut, 8 in off front wheel outside) off hind wheel outside cuts place, 9) the right outside side of tailstock ground, 10) car right-side course car rear, 11) car right side side, 12) car rear beyond car right-side course, 13) beyond car right-side course.
At step S104, based on described profile, Position Design and vision area, divide, first utilize the reference plane of three bench mark Construction designings uses of described special-shaped lens periphery design.Profile based on special-shaped eyeglass and Position Design, the reflection to relevant range after car when reference prototypes eyeglass is arranged on design attitude, then on the minute surface of prototype eyeglass, carry out vision area division according to the vision area quantity of designing requirement.After this, according to the spatial coordinates calculation of the eyes of described chaufeur, described vision area and described vision area reflecting regional, go out the curvature of each vision area described in each and with respect to the inclination angle of described reference plane, make vision area described in each can accurately clearly reflect designated area, make again vision area mirror image described in each be tending towards the mirror image of plane mirror.Because special-shaped eyeglass is uneven, each vision area needs reference plane to determine height and inclination angle.When making prototype eyeglass, with the substrate that is parallel to reference plane, according to vision area position, height and inclination angle, fix corresponding sample eyeglass, the mirror holder of using when substrate is equivalent to join near-sighted glasses.
According to the spatial coordinates calculation of the eyes of described chaufeur, described vision area and described vision area reflecting regional, go out the curvature of vision area described in each and with respect to the inclination angle of described reference plane, make vision area described in each can either accurately clearly reflect designated area, make again vision area mirror image described in each be tending towards the mirror image of plane mirror.
In the present embodiment, after calculating the curvature and inclination angle of special-shaped each vision area of eyeglass, select identical with corresponding vision area curvature but area is not more than one group of sample eyeglass of corresponding vision area, by the design inclination angle of corresponding vision area, be fixed on a substrate that is parallel to described reference plane, as described new prototype eyeglass.Described sample eyeglass is positioned on the position of the corresponding described vision area of described substrate, and identical with the height of described vision area.
When initial, use planar optics as prototype eyeglass, reflection to relevant range after car when reference plane mirror is arranged on design attitude, according to the vision area quantity of designing requirement, on the minute surface of prototype eyeglass, carry out vision area division again, simultaneously, when the curvature of design vision area and inclination angle, get minimum value as far as possible
In the present embodiment, described sample eyeglass is from the sample lens set of prior making, and this sample lens set comprises many pieces and has the eyeglass that is less than vision area size and meets vision area design curvature.
In the present embodiment, new prototype eyeglass is arranged on described position and is tested, if test result meets the designing requirement of special-shaped eyeglass, complete design, otherwise return to abovementioned steps S102, until the design of special-shaped eyeglass reaches requirement.That is: in each vision area, video under correct prerequisite, making each vision area curvature and inclination angle is minimum value, and the picture of all vision areas is smoothly continuous.
In the present embodiment, between described a plurality of vision areas, be provided with interval.And, described in each between vision area by Bicubic Spline Surface smooth connection, by described in each between vision area gap width and spline surface parameter design and makes all vision area mirror images naturally continuously.
Tool of the present invention has the following advantages.
(1) according to special-shaped lens design method of the present invention, can on an eyeglass, in the variation by position, size, curvature and inclination angle, form a plurality of vision areas, to eliminate a plurality of blind areas of single curvature eyeglass, effectively expanded driver's field range; And smooth connection between each vision area, make each vision area mirror image naturally continuous, avoided on minute surface mirror image jump, skew and demarcation line between each vision area to cause illusion to driver;
(2) special-shaped lens design method of the present invention, owing to adopting sample eyeglass that design is tested, adjusted and optimizes, has effectively shortened the design cycle; And sample eyeglass is selected flexibly, and be suitable for batch manufacturing;
(3) the present invention has wide range of applications, although mainly for the design of the special-shaped eyeglass of automobile rearview mirror, be also applicable to the special-shaped lens design of other purposes.
Because those skilled in the art should be understood that the present invention, can realize and not depart from the spirit or scope of the present invention with many other concrete forms.Although already described embodiments of the invention, the present invention should be understood and these embodiment should be restricted to, within the spirit and scope of the invention that those skilled in the art can define as appended claims, make and change and revise.
Claims (11)
1. for a special-shaped lens design method for automobile rearview mirror, it is characterized in that, comprise the steps: the initial prototype eyeglass that (a) used as design with planar optics; (b) according to designing requirement and environment for use, design special-shaped eyeglass profile and installation site, and with prototype eyeglass, design is tested and adjusted; (c) based on profile and Position Design, reference prototypes eyeglass to car after the reflection of relevant range, then carry out vision area division according to designing requirement; (d) profile based on described, position and vision area are divided, and according to designing requirement, calculate, test out curvature and the inclination angle of each vision area and make accordingly new prototype eyeglass; (e) new prototype eyeglass reaches special-shaped lens design and requires to finish design, otherwise returns to (b) adjusted design.
2. according to the method for designing described in right 1, it is characterized in that, in step (b), according to the standard heights of the chaufeur of the type of described automobile, purposes, moulding and described automobile, determine profile and the installation site of described special-shaped eyeglass, wherein said profile comprises shape and the size of eyeglass, and described installation site comprises the relative position relation with described automobile driver.
3. according to the method for designing described in right 2, it is characterized in that, step (c) comprises following little step: the vision area of the zones of different situation after the described car of a plurality of reflections (c1) is set on described prototype eyeglass, between each vision area, is provided with interval.
4. method of designing according to claim 3, is characterized in that, described vision area is divided into three groups: first group is the minute surface part near vehicle body, and on it, part is used for reflecting vehicle body lateral surface, and its underpart is for reflecting the ground under vehicle body lateral surface; The 3rd group is the minute surface part away from vehicle body, and its underpart is used for reflecting that car nearside lame is with exterior domain, and on it, part is for reflecting car nearside lame car rear area in addition; Second group between first group and the 3rd group, its underpart is used for reflecting car nearside lame, on it, part is for reflecting the car rear area of car nearside lame.
5. according to the method for designing described in right 4, it is characterized in that, described vision area comprises: 1) top, car predecessor left/right outside, 2) top, vehicle body middle part left/right outside, 3) top, tailstock left/right outside, 4) Qianmen, 5) back door, 6) tailstock left/right outside, 7) place is cut in left/right front-wheel outside, 8) place is cut in left/right trailing wheel outside, 9) ground outside tailstock left/right, 10) car left/right side line car rear, 11) car left/right side, 12) car rear beyond car left/right side line, 13) beyond car left/right side line.
6. according to the method for designing described in right 5, it is characterized in that, step (c) also comprises following little step: the reference plane of (c2) specifying three bench mark Construction designings to use in described special-shaped lens periphery; And (c3) according to the spatial coordinates calculation of the eyes of described chaufeur, described vision area and described vision area reflecting regional, go out the curvature of vision area described in each and with respect to the inclination angle of described reference plane, make vision area described in each can either accurately clearly reflect designated area, make again vision area mirror image described in each be tending towards the mirror image of plane mirror.
7. according to the method for designing described in right 6, it is characterized in that, described in each between vision area by Bicubic Spline Surface smooth connection, by described in each between vision area gap width and spline surface parameter design and makes all vision area mirror images naturally continuously.
8. method of designing according to claim 1, it is characterized in that, in abovementioned steps (b), (c), (d), described prototype eyeglass is arranged on described position and is tested, according to test data, the relevant design of special-shaped eyeglass is adjusted and optimized again, until the design of special-shaped eyeglass reaches designing requirement.
9. according to the method for designing described in right 6, it is characterized in that, after calculating the curvature and inclination angle of special-shaped each vision area of eyeglass, select identical with corresponding vision area curvature but area is not more than one group of sample eyeglass of corresponding vision area, by the design inclination angle of corresponding vision area, be fixed on a substrate that is parallel to described reference plane, as described new prototype eyeglass.
10. according to the method for designing described in right 9, it is characterized in that, described each sample eyeglass is fixed on the position of the corresponding described vision area of described substrate, and identical with the height of described vision area.
11. according to the method for designing described in right 9 or 10, it is characterized in that, described sample eyeglass is from the sample lens set of prior making, and this sample lens set comprises many pieces and has the eyeglass that is less than vision area size and meets vision area design curvature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210521307.7A CN102935826B (en) | 2012-12-07 | 2012-12-07 | Method for designing special lens |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210521307.7A CN102935826B (en) | 2012-12-07 | 2012-12-07 | Method for designing special lens |
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| Publication Number | Publication Date |
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| CN102935826A CN102935826A (en) | 2013-02-20 |
| CN102935826B true CN102935826B (en) | 2014-10-22 |
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| CN201210521307.7A Expired - Fee Related CN102935826B (en) | 2012-12-07 | 2012-12-07 | Method for designing special lens |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105676327B (en) * | 2016-04-11 | 2018-04-17 | 上海工程技术大学 | A kind of design method of more curved surface rearview mirrors |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2415984Y (en) * | 1999-09-17 | 2001-01-24 | 张金海 | Multi-curve non-blind area rear-viewing mirror mounted on vehicle exterior for vehicle |
| JP2002160583A (en) * | 2000-11-28 | 2002-06-04 | Ipc:Kk | Vehicular rearview mirror and its manufacturing method |
| CN201158344Y (en) * | 2008-01-04 | 2008-12-03 | 福州华旭光电有限公司 | Non-blind zone automobile rear view mirror |
| CN201477223U (en) * | 2009-08-27 | 2010-05-19 | 上海博迩森汽车配件有限公司 | Lens of rearview mirror |
| CN202243191U (en) * | 2011-07-20 | 2012-05-30 | 常志 | Rearview capable of enlarging view of driver and having individualized design |
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