公开(公告)号：US07618161B2

公开(公告)日：2009-11-17

申请号：US11224953

申请日：2005-09-14

申请人： Takeshi Morino ,  Yoshinori Honguh ,  Masataka Shiratsuchi ,  Naoto Tokuhara

发明人： Takeshi Morino ,  Yoshinori Honguh ,  Masataka Shiratsuchi ,  Naoto Tokuhara

IPC分类号： F21V5/04

CPC分类号： G02B3/08 ,  F21V5/045 ,  F21W2131/406

摘要： In a Fresnel lens which is made of a lens material whose refraction index is n, and focuses light beam from a light source at a specified radiation view angle φ, and has plural N pieces of circular lens surfaces arranged concentrically around a common optical axis, and plural circular rise surfaces arranged adjacent alternately between these lens surfaces, and two lens surfaces adjacent via at least one of the rise surfaces are concave surfaces, and tangent lines and at the intersecting point with the rise surfaces of the shape of a cross section passing through the optical axis of those lens surfaces intersect at the outside with respect to the optical axis, and when the angle formed between these tangent lines is defined as θ, a relational equation θ≧φ/(2 n N) stands.

摘要翻译： 在由折射率为n的透镜材料制成的菲涅尔透镜中，以特定的放射线角度phi聚焦来自光源的光束，并且具有围绕公共光轴同心设置的多个N个圆形透镜表面， 以及在这些透镜表面之间交替布置的多个圆形上升表面，并且经由至少一个上升表面相邻的两个透镜表面是凹形表面，并且切线和在与横截面形状的上升表面的交点处通过 通过这些透镜表面的光轴相对于光轴在外部相交，并且当这些切线之间形成的角度被定义为θ时，关系方程θ> = phi /（2n N）。

公开(公告)号：US20060056185A1

公开(公告)日：2006-03-16

申请号：US11224953

申请日：2005-09-14

申请人： Takeshi Morino ,  Yoshinori Honguh ,  Masataka Shiratsuchi ,  Naoto Tokuhara

发明人： Takeshi Morino ,  Yoshinori Honguh ,  Masataka Shiratsuchi ,  Naoto Tokuhara

IPC分类号： F21V5/00

CPC分类号： G02B3/08 ,  F21V5/045 ,  F21W2131/406

摘要： In a Fresnel lens which is made of a lens material whose refraction index is n, and focuses light beam from a light source at a specified radiation view angle φ, and has plural N pieces of circular lens surfaces arranged concentrically around a common optical axis, and plural circular rise surfaces arranged adjacent alternately between these lens surfaces, and two lens surfaces adjacent via at least one of the rise surfaces are concave surfaces, and tangent lines and at the intersecting point with the rise surfaces of the shape of a cross section passing through the optical axis of those lens surfaces intersect at the outside with respect to the optical axis, and when the angle formed between these tangent lines is defined as θ, a relational equation θ≧φ/(2 n N) stands.

摘要翻译： 在由折射率为n的透镜材料制成的菲涅尔透镜中，以特定的放射线角度phi聚焦来自光源的光束，并且具有围绕公共光轴同心设置的多个N个圆形透镜表面， 以及在这些透镜表面之间交替布置的多个圆形上升表面，并且经由至少一个上升表面相邻的两个透镜表面是凹形表面，并且切线和在与横截面形状的上升表面的交点处通过 通过这些透镜表面的光轴相对于光轴在外部相交，并且当这些切线之间形成的角度被定义为θ时，关系方程θ> = phi /（2n N）。

公开(公告)号：US20130278156A1

公开(公告)日：2013-10-24

申请号：US13820991

申请日：2011-09-22

申请人： Yumi Hanyuda ,  Koichi Honda ,  Tsuyoshi Toyama ,  Naoto Tokuhara ,  Junya Murata ,  Keitaro Takasaka

发明人： Yumi Hanyuda ,  Koichi Honda ,  Tsuyoshi Toyama ,  Naoto Tokuhara ,  Junya Murata ,  Keitaro Takasaka

IPC分类号： H05B33/08

CPC分类号： H05B33/086 ,  H05B33/0815

摘要： A light-emitting diode lighting apparatus includes a light source including plural grouped light-emitting diodes, plural lighting circuit parts to perform lighting control of the respective grouped light-emitting diodes of the light source individually, and a dimming control part that inputs a dimming signal from a dimming part and controls an output of each of the lighting circuit parts according to the dimming signal, and sequentially changes, when a dimming gradation is changed, outputs of the plural lighting circuit parts to new gradations in one period of the dimming signal.

摘要翻译： 发光二极管照明装置包括：多个分组的发光二极管的光源;分别对各个分组的发光二极管进行点亮控制的多个点亮电路部;以及调光控制部， 信号，并且根据调光信号控制每个点亮电路部分的输出，并且当调光等级改变时，顺序地改变多个点亮电路部分的输出到调光信号的一个周期中的新等级 。