发明名称 Light emitting device and illumination apparatus including same
摘要 A light emitting device includes a plurality of solid-state light emitting elements; a board on which the solid-state light emitting elements are arranged in the form of an array; and a light distribution adjusting member for adjusting a distribution of lights outputted from the solid-state light emitting elements. The light distribution adjusting member is provided to commonly cover at least two of the solid-state light emitting elements, and includes an accommodating portion which accommodates the solid-state light emitting elements; a concave curved surface portion provided above light output surfaces of the solid-state light emitting elements and immediately above the solid-state light emitting elements; and a pair of convex curved surface portions which are provided in opposite sides of the concave curved surface portion, each of the convex curved surface portions being smoothly connected to the concave curved surface portion.
申请公布号 US8876311(B2) 申请公布日期 2014.11.04
申请号 US201213457724 申请日期 2012.04.27
申请人 Panasonic Corporation 发明人 Yokotani Ryoji;Kiba Keiji
分类号 F21V5/04;F21V5/00;F21V3/04;F21V9/08;F21V13/02;F21V13/12;F21Y103/00;F21Y101/02;F21Y103/02 主分类号 F21V5/04
代理机构 Bacon & Thomas, PLLC 代理人 Bacon & Thomas, PLLC
主权项 1. A light emitting device comprising: a plurality of solid-state light emitting elements; a board on which the solid-state light emitting elements are arranged in the form of an array; and a light distribution adjusting member for adjusting a distribution of lights outputted from the solid-state light emitting elements, wherein the light distribution adjusting member is provided to commonly cover at least two of the solid-state light emitting elements, and includes a accommodating portion which accommodates the solid-state light emitting elements; a concave curved surface portion provided above light output surfaces of the solid-state light emitting elements and immediately above the solid-state light emitting elements; and a pair of convex curved surface portions which are provided in opposite sides of the concave curved surface portion, each of the convex curved surface portions being smoothly connected to the concave curved surface portion, wherein the light output surfaces of the solid-state light emitting elements are covered with a transparent resin member, wherein the transparent resin member contains a fluorescent material to form a wavelength converting member, and wherein the wavelength converting member is formed to have a thickness larger in a vertical direction the solid-state light emitting elements than that in the lateral direction thereof in a cross section perpendicular to a longitudinal direction of the light distribution adjusting member.
地址 Osaka JP