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    如何在lighttools内给导光板加上网点? [复制链接]

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    离线daoguang
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    只看该作者 20楼 发表于: 2007-05-06
    这个软件那里有下载的,请帮帮小弟,谢谢。
    离线trojan-1
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    只看该作者 21楼 发表于: 2007-07-01
    小弟是新手,请问相对于ASAP,在设计导光板方面,LT有什么优和缺,能比较下吗???谢了
    离线ycl641
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    只看该作者 22楼 发表于: 2007-07-07
    请问auto-cad的网点怎么导入啊,还有那个autolist是一个什么样的插件哦?
    离线286974144
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    只看该作者 23楼 发表于: 2007-10-19
    把网点参数写成.TXT格式,在导光板的TEXTURE中导入就可以在LT 中得到网点,只是中间要有个坐标转换,计算要精解. 6V*,nocL_+  
    多试几次就可以了.
    离线陈宏桂
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    只看该作者 24楼 发表于: 2007-10-30
    引用第23楼286974144于2007-10-19 15:17发表的  : c@Br_ -  
    把网点参数写成.TXT格式,在导光板的TEXTURE中导入就可以在LT 中得到网点,只是中间要有个坐标转换,计算要精解. ~_Fx2T:X  
    多试几次就可以了.
    DP0@x+`k  
    能详细说明吗?谢谢!
    离线oring
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    只看该作者 25楼 发表于: 2007-10-31
    lighttools有一個插件叫DXF Tool,可以把autocad的圖檔先轉成DXF檔,然後再吃進去lighttools,也可以把lighttools的網點轉出成dxf檔,讓autocad讀。
    离线chm85
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    只看该作者 26楼 发表于: 2007-11-13
    Parameterize the Bumps r dSL  
    The Backlight Utility was helpful to build the backlight system quickly. However, ij;NM:|Sd  
    the bumps must be parameterized in order to get the desired output distribution. bsDA&~)s  
    You can do this easily using the LightTools Properties dialog box. ` PQQU~^  
    1.In the System Navigator, expand the items LightGuide, CubePrimitive_1, :`zO%h  
    BottomSurface, and Zones. Then, select Texture, as shown in the following EW(bM^dk}  
    figure. c0'ryS_Z9  
    2.Right-click and select Properties on the shortcut menu. ,wes*  
    3.Select the Geometry tab. R%RxF=@  
    4.Select the arrow next to the Placement drop-down list, and select Bezier. Click xws{"m,NX~  
    Apply. '"E!av>  
    ghtTools Introductory Tutorial
    离线chm85
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    只看该作者 27楼 发表于: 2007-11-13
    The default number of bumps is 100 (10 X 10). You need to change these f(w>(1&/B  
    parameters to match your design. Note that LightTools allows many other aE5-b ub c  
    placement options, but you will use the Bezier placement option for this &]o-ZZX  
    example. 8C@u+tx  
    5.On both the X Placement tab and Y Placement tab, change the Number of H%@f ^  
    Bumps parameter to 300, as shown in the following figure. Click Apply after 'JMW.;Lh?X  
    each change. 8xO   
    6.Click OK to close the dialog box. = 0d|F 8  
    Note that the number of bumps is 300 X 300, which results in about 90,000 Fn@`Bi?#q  
    bumps on the surface (~ 5143 bumps/in2). These bumps are arranged in a " _2 k 3  
    manner defined by the Bezier parameterization option. Please see Chapter 5 of uVn"L:_  
    the LightTools Core Module User’s Guide for more information. With the qX-ptsQ  
    current parameter values, the Bezier option varies the bump spacing along the _M`ZF*o=c  
    length of the light guide. The spacing in the orthogonal direction is constant. a{T.U-0   
    The X and Y refer to the local coordinate system of the surface. 6i[Ts0H%<!  
    LightTools Introductory Tutorial * 91 'Nl hLu  
    pNb2t/8%%  
    HAPTER 5 Introduction to Backlight Design gQ{ #C'  
    C Jr !BDg  
    Examining Surface Properties %LMpErZO  
    Using the methods described in previous chapters, you may want to check your nXRa_M(z8  
    model before you run a simulation. 6]?%1HSi  
    Click on various parts of the model in the 3D Design View. Or use the System skcyLIb  
    Navigator to select different surfaces and view their Properties. cb9-~*1  
    1.In the System Navigator, click to open BottomSurface of the LightGuide, then F<I*?${[  
    click Zones, and then click Texture. tS2 &S 6u  
    2.Select SphericalElement, and then right-click and select Properties from the .kBkYK8*t  
    shortcut menu. The Shape tab shows you a graphical representation of the M 5sk&>  
    spherical bump shape that is the bottom of the light guide. src9EeiV  
    You might be curious as to why you cannot see the 3D texture property zones you =PRQ3/?5  
    defined. They are invisible by default, because drawing thousands of texture dxs5woP  
    elements can make displaying and exploring the model somewhat slow. If you ZW [&7[4  
    choose to make them visible, 3D textures are displayed in wireframe, even if the .#QE*<T)]  
    display mode is set to translucent. Wireframe rendering displays a bit faster and $t;:"i>  
    shows more of the technical details. `yv?PlKL  
    92 * LightTools Introductory Tutorial 2&4nf/sE  
    MIZdk'.U  
    HAPTER 5 Introduction to Backlight Design A2 + %  
    C dS6 $  
    1.Rotate and zoom the model to that you can see something like the illustration 0*XsAz1,9  
    below: |c/=9Bb  
    . U*C^g}iA  
    2.To reveal the Property Zones: x2B8G;6u  
    a.Right-click in the Design View and select View Preferences to display this `"=>lu2H   
    dialog box. ?sk>Mzr  
    b.On the Visibility tab, click the Property Zone check box to turn it on. A]|w1nq  
    c.Click OK. D -tRy~}  
    You will see the wire frame rendering of the spherical bumps on the /2Wg=&H  
    bottom surface, and a solid color above it. The solid color is the 3D texture vS8& ,wJ!  
    of the BEFs (brightness-enhancing films) built automatically by the utility.   
    离线chm85
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    只看该作者 28楼 发表于: 2007-11-13
    看看这个有点帮助!
    离线stars-man
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    只看该作者 29楼 发表于: 2007-12-01
    1 是autolisp 不是autolist ?y? 9;;  
    2 在autocad中是用autolisp编写插件,实现将网点参数之坐标和半径读取并另存为 ~2Wus8X-  
    txt档的命令,只要有坐标和半径就ok了,excel档也无所谓。看你喜欢 p}QDX*/sSu  
    3 在lighttoools使用texture命令,建立一个圆点的矩阵,在坐标一栏中,把原有的删除 J1G}l5N  
    贴上你在cad中读出的数据就好了。半径的参数一样办理 %D4)Bqr  
    4 关键是cad中网点的坐标位置要和lighttools模型的位置对应的上,否则,你贴上去网点位置在离模型很远的地方就不厚道了