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    • 3. 发明申请
    • Optical diffuser for producing a circular light field
    • 用于产生圆形光场的光学漫射器
    • US20050063064A1
    • 2005-03-24
    • US10943120
    • 2004-09-16
    • Ralf BeckerRuediger KittelmannEberhard KurekHarry WagenerUlrich Zirfas
    • Ralf BeckerRuediger KittelmannEberhard KurekHarry WagenerUlrich Zirfas
    • F21V5/04G02B5/02G02B5/04G02B7/18G02B13/20
    • G02B5/0215F21V5/04G02B5/0278
    • The optical diffuser has a transparent base body with a first surface, which is divided into facets. Each facet has an elevation or a depression correlated or associated with a second curved surface. Respective facets have correspondingly different geometrical shapes. In some embodiments the respective apexes (S) of the elevations or depressions are arranged along a spiral, especially an Archimedian spiral. In other embodiments the apexes (S) are defined by coordinates (xs′, ys′) derived by rotation of coordinates (xp, yp) of all points (P), which are defined by an arrangement of facets with a regular hexagonal edge contour, about a center (0, 0) through a twist angle (δ). Alternatively the apexes (S) are defined by coordinates (xs″, ys″) derived from coordinates (xp, yp) of all points (P), which are defined by the arrangement of facets with the regular hexagonal edge contour, by random variations with the help of a Monte Carlo method. The optical diffuser according to the invention produces a circular soft-edged light field, which is outstanding for photographic applications.
    • 光学扩散器具有透明的基体,其具有第一表面,该第一表面被分成小平面。 每个小平面具有与第二曲面相关或相关联的高度或凹陷。 各小面具有相应不同的几何形状。 在一些实施例中,高度或凹陷的相应顶点(S)沿着螺旋线,特别是阿基米德螺旋线布置。 在其他实施例中,顶点(S)由通过所有点(P)的坐标(xp,yp)的旋转导出的坐标(xs',ys')限定,所述点由具有正六边形边缘轮廓的小平面的布置 ,约通过扭转角(delta)的中心(0,0)。 或者,顶点(S)由所有点(P)的坐标(xp,yp)导出的坐标(xs“,ys”)定义,所述坐标(xp,yp)由具有正六边形边缘轮廓的小平面的排列由所述点 在蒙特卡罗方法的帮助下随机变化。 根据本发明的光扩散器产生圆形软边光场,其对于照相应用是突出的。
    • 4. 发明授权
    • Optical diffuser for producing a circular light field
    • 用于产生圆形光场的光学漫射器
    • US07729054B2
    • 2010-06-01
    • US12233851
    • 2008-09-19
    • Ralf BeckerRuediger KittelmannEberhard KurekHarry WagenerUlrich Zirfas
    • Ralf BeckerRuediger KittelmannEberhard KurekHarry WagenerUlrich Zirfas
    • G02B13/20G02B5/02
    • G02B5/0215F21V5/04G02B5/0278
    • The optical diffuser has a transparent base body with a base body surface, which is divided into facets. Each facet has an elevation or a depression correlated or associated with a second curved surface. Respective facets have correspondingly different geometrical shapes. In some embodiments the respective apexes (S) of the elevations or depressions are arranged along a spiral, especially an Archimedean spiral. In other embodiments the apexes (S) are defined by coordinates (xs′, ys′) derived by rotation of coordinates (xp, yp) of all points (P), which are defined by an arrangement of facets with regular hexagonal edge contours, about a center (0, 0) through a twist angle (δ). Alternatively the apexes (S) are defined by coordinates (xs″, ys″) derived from coordinates (xp, yp) of all points (P), which are defined by the arrangement of facets with regular hexagonal edge contours, by random variations with the help of a Monte Carlo method. The optical diffuser according to the invention produces a circular soft-edged light field, which is outstanding for photographic applications.
    • 光学扩散器具有带有基体表面的透明基体,该基体分为小平面。 每个小平面具有与第二曲面相关或相关联的高度或凹陷。 各小面具有相应不同的几何形状。 在一些实施例中,高度或凹陷的相应顶点(S)沿着螺旋,特别是阿基米德螺旋排列。 在其他实施例中,顶点(S)由所有点(P)的坐标(xp,yp)的旋转导出的坐标(xs',ys')定义,所述点由具有规则六边形轮廓的小平面的排列限定, 围绕中心(0,0)通过扭转角(δ)。 或者,顶点(S)由所有点(P)的坐标(xp,yp)导出的坐标(xs“,ys”)定义,所述坐标(xp,yp)由具有规则六边形轮廓的小平面的排列通过随机变化与 蒙特卡罗方法的帮助。 根据本发明的光扩散器产生圆形软边光场,其对于照相应用是突出的。
    • 5. 发明授权
    • Optical diffuser for producing a circular light field
    • 用于产生圆形光场的光学漫射器
    • US07443588B2
    • 2008-10-28
    • US10943120
    • 2004-09-16
    • Ralf BeckerRuediger KittelmannEberhard KurekHarry WagenerUlrich Zirfas
    • Ralf BeckerRuediger KittelmannEberhard KurekHarry WagenerUlrich Zirfas
    • G02B13/20G02B5/02
    • G02B5/0215F21V5/04G02B5/0278
    • The optical diffuser has a transparent base body with a first surface, which is divided into facets. Each facet has an elevation or a depression correlated or associated with a second curved surface. Respective facets have correspondingly different geometrical shapes. In some embodiments the respective apexes (S) of the elevations or depressions are arranged along a spiral, especially an Archimedian spiral. In other embodiments the apexes (S) are defined by coordinates (xs′, ys′) derived by rotation of coordinates (xp, yp) of all points (P), which are defined by an arrangement of facets with a regular hexagonal edge contour, about a center (0, 0) through a twist angle (δ). Alternatively the apexes (S) are defined by coordinates (xs″, ys″) derived from coordinates (xp, yp) of all points (P), which are defined by the arrangement of facets with the regular hexagonal edge contour, by random variations with the help of a Monte Carlo method. The optical diffuser according to the invention produces a circular soft-edged light field, which is outstanding for photographic applications.
    • 光学扩散器具有透明的基体,其具有第一表面,该第一表面被分成小平面。 每个小平面具有与第二曲面相关或相关联的高度或凹陷。 各小面具有相应不同的几何形状。 在一些实施例中,高度或凹陷的相应顶点(S)沿着螺旋线,特别是阿基米德螺旋线布置。 在其他实施例中,顶点(S)由通过坐标(x)的旋转导出的坐标(x,s,y,s)定义, 通过具有正六边形边缘轮廓的小平面的排列限定的所有点(P)的大约中心(0,0)通过扭转角(delta)的所有点(P)的距离。 或者,顶点(S)由坐标(x,p,y,y)导出的坐标(x,s,y,s)定义 通过蒙特卡罗方法的随机变化,通过具有正六边形边缘轮廓的面的排列来定义的所有点(P)的所有点(P)。 根据本发明的光扩散器产生圆形软边光场,其对于照相应用是突出的。