Patent ID: 9638852
Date: 2017-05-02
CPC Classifications: F21Y,G02B,H01L

Claim:
1. A point light source comprising: a light-emitting element; and an envelope that has light-transmitting property and seals said light-emitting element, wherein said envelope includes: a first surface having a spherical shape centered on said light-emitting element and protruding ahead of said light-emitting element and extending to a left side and a right side of said light-emitting element when viewed from said light-emitting element, the entire first surface being convex; a second surface connected to said first surface on the left side and the right side of said light-emitting element and being in contact with said light-emitting element; a third surface directly connected to an upper end of said first surface and connected to an upper end of said second surface and forming a first depression that sinks from said first surface toward said second surface, and said first depression is positioned entirely within the convex first surface when viewed from an opposite side of said first surface from said light-emitting element; and a fourth surface directly connected to a lower end of said first surface and connected to a lower end of said second surface and forming a second depression that sinks from said first surface toward said second surface, and said second depression is positioned entirely within the convex first surface when viewed from an opposite side of said first surface from the light-emitting element.