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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. J [ H?nX9  
    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  : $`{q[{  
    把网点参数写成.TXT格式,在导光板的TEXTURE中导入就可以在LT 中得到网点,只是中间要有个坐标转换,计算要精解. x{>Y$t]  
    多试几次就可以了.
    ;jU-<  
    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 EO/cW<uV'  
    The Backlight Utility was helpful to build the backlight system quickly. However, aC yb-P  
    the bumps must be parameterized in order to get the desired output distribution. 1gShV ]2  
    You can do this easily using the LightTools Properties dialog box. 9`C iE  
    1.In the System Navigator, expand the items LightGuide, CubePrimitive_1, )SL@ >Cij  
    BottomSurface, and Zones. Then, select Texture, as shown in the following CDW(qq-zD  
    figure. ;}eEG{`Y  
    2.Right-click and select Properties on the shortcut menu. 7tl)4A6  
    3.Select the Geometry tab. K;y\[2;}e,  
    4.Select the arrow next to the Placement drop-down list, and select Bezier. Click !|<f%UO  
    Apply. Wqs.oh  
    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 j |'# 5H`  
    parameters to match your design. Note that LightTools allows many other N t>HztXd  
    placement options, but you will use the Bezier placement option for this hDB`t $  
    example. UOLTCp?M;J  
    5.On both the X Placement tab and Y Placement tab, change the Number of ##`;Eh0a  
    Bumps parameter to 300, as shown in the following figure. Click Apply after f`u5\!}=!  
    each change. Pzk[^z$C  
    6.Click OK to close the dialog box. 2yJ7]+Jd7Y  
    Note that the number of bumps is 300 X 300, which results in about 90,000 A| gs Uh  
    bumps on the surface (~ 5143 bumps/in2). These bumps are arranged in a E2qB:  
    manner defined by the Bezier parameterization option. Please see Chapter 5 of xyS2_Q  
    the LightTools Core Module User’s Guide for more information. With the '#McY'.D T  
    current parameter values, the Bezier option varies the bump spacing along the %|`:5s-T%  
    length of the light guide. The spacing in the orthogonal direction is constant. 2w x[D  
    The X and Y refer to the local coordinate system of the surface. cy&  
    LightTools Introductory Tutorial * 91 <nOuyGIZ  
    zfP[1  
    HAPTER 5 Introduction to Backlight Design Bt*&L[&57  
    C  EbBv}9g  
    Examining Surface Properties  +eDN,iv  
    Using the methods described in previous chapters, you may want to check your ^B<PD]  
    model before you run a simulation. uGP[l`f|FQ  
    Click on various parts of the model in the 3D Design View. Or use the System %)<oX9E  
    Navigator to select different surfaces and view their Properties. {p#l!P/  
    1.In the System Navigator, click to open BottomSurface of the LightGuide, then mJGO)u&  
    click Zones, and then click Texture. (s V]UGrZ  
    2.Select SphericalElement, and then right-click and select Properties from the rSF;Lp)}  
    shortcut menu. The Shape tab shows you a graphical representation of the 7E!";HT  
    spherical bump shape that is the bottom of the light guide. lnS\5J  
    You might be curious as to why you cannot see the 3D texture property zones you  r21?c|IP  
    defined. They are invisible by default, because drawing thousands of texture zH=/.31Q  
    elements can make displaying and exploring the model somewhat slow. If you <i{m.p R>  
    choose to make them visible, 3D textures are displayed in wireframe, even if the _q$0lqq~u  
    display mode is set to translucent. Wireframe rendering displays a bit faster and uS: A4tN  
    shows more of the technical details. {*M>X}voS  
    92 * LightTools Introductory Tutorial !~lVv&YO  
    (1kn):  
    HAPTER 5 Introduction to Backlight Design DqurHQ z)m  
    C Y91 e1PsV  
    1.Rotate and zoom the model to that you can see something like the illustration ~J:$gu~`  
    below: g)Vq5en*   
    . 2_oK 5*j  
    2.To reveal the Property Zones: IL+#ynC  
    a.Right-click in the Design View and select View Preferences to display this O:`GL1{ve?  
    dialog box. ;S=62_ Un  
    b.On the Visibility tab, click the Property Zone check box to turn it on. QoW ( tM  
    c.Click OK. #[k~RYS3  
    You will see the wire frame rendering of the spherical bumps on the J+/}K>2#  
    bottom surface, and a solid color above it. The solid color is the 3D texture 2p$n*|T&c  
    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 ~u_K& X  
    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 #W>x\  
    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 &_Cxv8  
    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 +L`V[;  
    贴上你在cad中读出的数据就好了。半径的参数一样办理 SjZd0H0  
    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