CN108802893A - Light guide auxiliary design method - Google Patents

Light guide auxiliary design method Download PDF

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Publication number
CN108802893A
CN108802893A CN201810644988.3A CN201810644988A CN108802893A CN 108802893 A CN108802893 A CN 108802893A CN 201810644988 A CN201810644988 A CN 201810644988A CN 108802893 A CN108802893 A CN 108802893A
Authority
CN
China
Prior art keywords
light
processor
light guide
angle
incidence
Prior art date
Application number
CN201810644988.3A
Other languages
Chinese (zh)
Inventor
陈振兴
林俊鸿
张嘉和
陈俊杰
林胤廷
Original Assignee
英业达科技有限公司
英业达股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 英业达科技有限公司, 英业达股份有限公司 filed Critical 英业达科技有限公司
Priority to CN201810644988.3A priority Critical patent/CN108802893A/en
Publication of CN108802893A publication Critical patent/CN108802893A/en

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B6/00Light guides
    • G02B6/0001Light guides specially adapted for lighting devices or systems
    • G02B6/0011Light guides specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0065Manufacturing aspects; Material aspects
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B27/00Other optical systems; Other optical apparatus
    • G02B27/0012Optical design, e.g. procedures, algorithms, optimisation routines
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/50Computer-aided design
    • G06F17/5086Mechanical design, e.g. parametric or variational design

Abstract

The invention discloses a kind of light guide auxiliary design methods, including:Light emitting source is selected from database with processor;Any two medium sides for setting light guide with refractive index, using processor using the geometry of processor selected light guide from database calculate luminous incidence point, incidence angle, angle of reflection and the refraction angle for being derived from incidence surface as incidence surface and light-emitting surface, with processor and with processor calculating light emitting source respectively at incidence surface and the energy of light-emitting surface.In this way, the time that user corrects light guide again can be reduced.

Description

Light guide auxiliary design method

Technical field

The present invention is about a kind of computer-implemented method, espespecially a kind of computer-implemented method of light guide.

Background technology

In order to allow the light that light emitting source is sent out on mainboard that can be transferred to casing surface, research staff must in light emitting source with Suitable light guide is designed between casing surface so that light can be transferred to casing surface by light guide and will not be lost too many Light energy.However at present light guide cad tools, it is possible to provide to the data of research staff only have incidence surface with The energy of light-emitting surface, research staff can not learn light that light emitting source is sent out in travel condition and energy loss in light guide State, so suitable light guide could efficiently be designed by having to rely on veteran expert.

In view of this, needing a kind of light guide computer-implemented method of improvement really at present, can at least solve State disadvantage.

Invention content

One embodiment of the invention provides a kind of computer-implemented method of light guide, it is possible to provide valid data are with auxiliary Research staff is helped to design light guide.

An embodiment according to the present invention provides a kind of light guide auxiliary design method, including:With processor from database In select light emitting source, light guide geometry and refractive index;It is luminous that any two medium sides of light guide are set with processor The incidence surface and light-emitting surface in source;And the incidence point, incidence angle, angle of reflection and the refraction that shine derived from incidence surface are calculated with processor Angle;And light emitting source is calculated respectively at incidence surface and the energy of light-emitting surface with processor.

The light guide auxiliary design method of one embodiment of the invention can be applied to computer applied algorithm, and research staff is logical The incidence surface energy of any zone in light guide, light-emitting surface energy and light travel path can be calculated by crossing application program Data can thus reduce research staff and remodify the structure feature of light guide and the time of material, while can reach and make The energy that light emitting source is sent to light-emitting surface reaches expected light utilization.

The explanation of above explanation and the following embodiments and the accompanying drawings about the content of present invention is demonstrating and explain the present invention Spirit and principle, and provide the present invention patent application claims protection domain further explain.

Description of the drawings

Fig. 1 is painted the flow chart of the light guide auxiliary design method of first embodiment of the invention.

Fig. 2 is painted the flow chart of the light guide auxiliary design method of second embodiment of the invention.

The light guide auxiliary design method that Fig. 3 to Fig. 9 is painted first embodiment of the invention is applied to computer software in terms of It calculates and specifies light in the schematic diagram of the travel path in light guide.

Figure 10 to Figure 13 is painted the light guide auxiliary design method of second embodiment of the invention applied to computer software Calculate the schematic diagram for the travel path in light guide that shines.

Wherein, reference numeral:

100,200,300,400 light emitting source

L specifies light

102,202 light guide

103 light shields

S1~S4 medium sides

F1 incidence surfaces

F2 light-emitting surfaces

Specific implementation mode

The detailed features and advantage of the narration present invention, content are enough to make any ability in detail in embodiments below The technical staff in domain understands the technology contents of the present invention and implements according to this, and is wanted according to content disclosed in this specification, right Ask protection domain and attached drawing, any those skilled in the art that can be readily understood upon the relevant purpose of the present invention and advantage.Below The embodiment viewpoint that present invention be described in more detail, but it is non-anyways to limit scope of the invention.

Fig. 1 is the flow chart for the light guide auxiliary design method for being painted first embodiment of the invention, including:In step S101 In, a light emitting source is chosen from the light source model of database with processor, database is, for example, personal computer or cloud service Device, and processor is, for example, chip or logic circuit.Light source model includes the pre-selection light emitting source of multiple and different light source rink corners, respectively Kind pre-selection light emitting source is all established using Fibonacci grid (Fibonacci Grid) method.So-called Fibonacci grid (Fibonacci Grid) method is first to establish equally distributed linear feature in space to indicate point light source, then according to point Light source learns the luminous intensity of point light source each angle in three dimensions in the Energy distribution of different light emitting angles.In step In S102, with the coordinate position that processor setting shines in electronic device, wherein light emitting source is set to the master in electronic device Except plate and the light guide being located in electronic device.In step s 103, it is selected from the light guide model of database with processor Take the geometry and refractive index of a light guide.In step S104, one is set in the light sent out from light emitting source with processor Item specifies light.In step S105, is set with processor and specify light in reflection (refraction) number upper limit in light guide, by This limitation specifies light in the order of reflection in light guide to avoid the excessive operation of processor.In step s 106, with processor Data according to light guide geometry, refractive index and the order of reflection upper limit are calculated based on Snell's law (Snell`s Law) Go out specified light and injects incidence angle, angle of reflection and refraction angle when light guide surface, specified light in each in light guide Incidence angle, angle of reflection and the refraction angle of the incidence angle of reflecting surface and angle of reflection and injection light guide, thereby extrapolate specified light Line is in the travel path in light guide.In step s 107, it is incident in and leads according to light guide refractive index, specified light with processor Incidence angle, angle of reflection and refraction angle when body of light surface, specified light in each reflecting surface in light guide incidence angle with it is anti- Firing angle and specified light project incidence angle, angle of reflection and the data at refraction angle of light guide, are based on Fresnel's equation (Fresnel Equations) calculates energy when specified light is incident in light guide surface, specified light in light guide Each reflecting surface energy and specified light project energy when light guide.

In other embodiments, further comprise to be added with processor with before step S105 after step s 104 The program that a light shield between light emitting source and light guide is selected from the light shield model of database, thereby avoids handling Device carries out excessive operation.

Fig. 2 is the flow chart for the light guide auxiliary design method for being painted second embodiment of the invention, including:In step S201 In, a light emitting source is selected from the light source model of database with processor.Light source model includes multiple and different light source rink corners Light emitting source is preselected, various pre-selection light emitting sources are all established using Fibonacci grid (Fibonacci Grid) method.In step In S202, the gross energy of light emitting source is calculated with processor.In step S203, shone in electronic device with processor setting Coordinate position, wherein light emitting source is set to except the mainboard in electronic device and the light guide in the electronic device.In step In S204, the geometry and refractive index of a light guide are selected from the light guide model of database with processor.In step In S205, shone derived from the incidence surface and light-emitting surface of light guide with processor setting, any medium face of wherein light guide all may be used It is set as incidence surface and light-emitting surface.In step S206, each light sent out with processor setting light emitting source is in light guide The order of reflection upper limit, thereby limit the light that sends out of light emitting source and excessively transported to avoid processor in the order of reflection in light guide It calculates.In step S207, the ratio lower limit (light utilization) of light-emitting surface energy and incidence surface energy is set with processor, by This light energy for making light emitting source send out will not cause scattering and disappearing for big energy during being transmitted to light guide.In step S208 In, the data with processor according to light guide geometry, refractive index and the order of reflection upper limit are based on Snell's law (Snell `s Law) it calculates light emitting source and is issued on each light and inject incidence angle, angle of reflection and refraction angle when light guide surface, every One light projects the incidence angle, anti-of light guide in incidence angle and the angle of reflection of each reflecting surface in light guide and each light All light that light emitting source is sent out thereby are extrapolated in the travel path in light guide in firing angle and refraction angle.In step S209, Incidence angle, angle of reflection and refraction angle when being incident according to light guide refractive index, light emitting source light guide surface with processor shine The light injection that the light that source is sent out is sent out in the incidence angle of each reflecting surface in light guide with angle of reflection and light emitting source is led Incidence angle, angle of reflection and the data at refraction angle of body of light are set out based on Fresnel's equation (Fresnel Equations) calculating The light that gross energy, light emitting source of the light source incidence when incidence surface are sent out in each reflecting surface in light guide gross energy and The light that light emitting source is sent out projects gross energy when light-emitting surface.

In other embodiments, after the step S205 with before step S206, further comprise being added with processor from The program that a light shield between light emitting source and light guide is selected in the light shield model of database, thereby reduces processor It carries out excessive operation, or is added and is sent out from light-emitting surface with processor setting with before step S208 after the step S207 Light direction and distance, for user it is convenient to the light sent out from the light-emitting surface of light guide carry out subsequent processing with Using.

Fig. 3 to Fig. 9 is to be painted the light guide auxiliary design method of first embodiment of the invention applied to computer software It calculates and specifies light in the schematic diagram of the travel path in light guide.As shown in Figure 3 and Figure 4, it is stored from database with processor Three different light source rink corners light emitting source 100,200,300 in select a light emitting source 100.As shown in figure 5, being set with processor Light emitting source 100 is located on the mainboard in electronic device in the coordinate position in electronic device, wherein light emitting source 100 and positioned at leaded light Except body.As shown in fig. 6, a specified light L1 is set from the light that light emitting source 100 is sent out with processor.As shown in fig. 7, A light guide 102 is selected from the pre-selection light guide of several geometries and refractive index stored by database with processor.Such as Shown in Fig. 8, a light shield 103 is selected from the pre-selection light shield of several geometries stored by database with processor, with And setting light L1 is in the order of reflection upper limit in light guide 102.Specify light L1 in leading as shown in figure 9, being calculated with processor Travel path and specified light L1 in body of light 102 is in the energy of four medium side S1~S4 of light guide 102.Research staff Specify light L1 in the data of the travel path of light guide 102 and energy in each medium side S1~S4 by analysis, it can Again it modifies with material to the geometry feature of light guide, and then modified guide structure is uploaded to data Library.

Figure 10 to Figure 13 is to be painted the light guide auxiliary design method of second embodiment of the invention applied to computer software To calculate the schematic diagram to shine derived from the travel path of light guide.At the difference for only illustrating light emitting source and specified light below, phase It is same partly to repeat no more.As shown in Figure 10 and Figure 11, it is set as luminous from any two medium sides of light guide 202 with processor The incidence surface F1 and light-emitting surface F2 in source 400.As shown in figure 12, with processor each light for sending out of setting light emitting source 400 in leading The order of reflection upper limit, light-emitting surface gross energy in body of light 202 are sent out with the ratio lower limit of incidence surface gross energy and from light-emitting surface The distance of light.As shown in figure 13, with processor calculate the light that sends out of light emitting source 400 in light guide 202 travel path, Ratio (light utilization), the light-emitting surface of light source initial total energy, incidence surface gross energy, incidence surface gross energy and initial total energy The ratio of gross energy and light-emitting surface gross energy and incidence surface gross energy.

The light guide auxiliary design method of the present invention can be applied to computer software, and processor can set wantonly the two of light guide A medium side is incidence surface and light-emitting surface, and then analyzes the light travel path and Energy distribution of any zone of light guide, by This can reduce the time that research staff corrects light guide geometric characteristic and material, while can be so that light emitting source is transferred to light extraction The energy in face can meet expected light utilization.

Certainly, the invention may also have other embodiments, without deviating from the spirit and substance of the present invention, ripe It knows those skilled in the art and makes various corresponding change and deformations, but these corresponding changes and change in accordance with the present invention Shape should all belong to the protection domain of appended claims of the invention.

Claims (10)

1. a kind of light guide auxiliary design method, which is characterized in that including:
A light emitting source is selected from a database with a processor;
The geometry and refractive index of a light guide are selected from the database with the processor;
Any two medium sides that the light guide is set with the processor are respectively an incidence surface and a light-emitting surface for the light emitting source;
This is calculated with the processor to shine derived from an incidence point, an incidence angle, an angle of reflection and the refraction angle of the incidence surface;With And
The light emitting source is calculated respectively at the incidence surface and the gross energy of the light-emitting surface with the processor.
2. light guide auxiliary design method according to claim 1, which is characterized in that the light emitting source is with Fibonacci grid Method is established.
3. light guide auxiliary design method according to claim 1, which is characterized in that further comprise from the processor Select the light emitting source after with the light guide is selected with the processor geometry and refractive index before, with the processor set The coordinate position to shine in an electronic device.
4. light guide auxiliary design method according to claim 1, which is characterized in that further comprise setting with the processor After the fixed incidence surface and the light-emitting surface incidence point, the incidence angle, the angle of reflection and the refraction angle are calculated with the processor Before, with the processor from the database select a light shield between the light emitting source and the light guide.
5. light guide auxiliary design method according to claim 1, which is characterized in that the processor is according to Snell's law Calculate the angle of reflection and the refraction angle.
6. light guide auxiliary design method according to claim 1, which is characterized in that the processor is according to Fresnel equation Formula calculates this and shines derived from the gross energy of the incidence surface and the light-emitting surface.
7. light guide auxiliary design method according to claim 1, which is characterized in that further comprise setting with the processor The fixed light-emitting surface calculates the incidence point, the incidence angle, the angle of reflection and the refraction with after the light-emitting surface and with the processor Before angle, which is set with the processor.
8. light guide auxiliary design method according to claim 1, which is characterized in that further comprise setting with the processor The fixed light-emitting surface calculates the incidence point, the incidence angle, the angle of reflection and the refraction with after the light-emitting surface and with the processor Before angle, the ratio lower limit of the gross energy of the light-emitting surface and the gross energy of the incidence surface is set with the processor.
9. light guide auxiliary design method according to claim 1, which is characterized in that further comprise from sharp weapon from this After selecting the light emitting source, the initial total energy of the light emitting source is calculated with the processor.
10. light guide auxiliary design method according to claim 1, which is characterized in that further comprise with the processor It sets the light-emitting surface and calculates the incidence point, the incidence angle, the angle of reflection and the folding with after the light-emitting surface and with the processor The distance to be emitted beam from the light-emitting surface with processor setting before firing angle and direction.
CN201810644988.3A 2018-06-21 2018-06-21 Light guide auxiliary design method CN108802893A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810644988.3A CN108802893A (en) 2018-06-21 2018-06-21 Light guide auxiliary design method

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Application Number Priority Date Filing Date Title
CN201810644988.3A CN108802893A (en) 2018-06-21 2018-06-21 Light guide auxiliary design method

Publications (1)

Publication Number Publication Date
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101336414A (en) * 2005-11-30 2008-12-31 3M创新有限公司 Method and apparatus for simulation of optical systems
CN103791442A (en) * 2012-10-31 2014-05-14 四川柏狮光电技术有限公司 Lenses of large-angle LED (Light Emitting Diode) bulb lamp and design method thereof
CN107298150A (en) * 2017-05-27 2017-10-27 广东雷腾智能光电有限公司 The luminous brake handlebar of one kind

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101336414A (en) * 2005-11-30 2008-12-31 3M创新有限公司 Method and apparatus for simulation of optical systems
CN103791442A (en) * 2012-10-31 2014-05-14 四川柏狮光电技术有限公司 Lenses of large-angle LED (Light Emitting Diode) bulb lamp and design method thereof
CN107298150A (en) * 2017-05-27 2017-10-27 广东雷腾智能光电有限公司 The luminous brake handlebar of one kind

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
周盛华: "大功率LED车灯光学设计及其应用", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 *

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