Led lamp

Abstract

An LED lamp A includes a plurality of LED modules 2 each including an LED chip 21, and a support member 1 including a support surface 1a on which the LED modules 2 are mounted. The LED modules 2 include a plurality of kinds of LED modules, or a first through a third LED modules 2A, 2B and 2C different from each other in directivity characteristics that represent light intensity distribution with respect to light emission directions. This arrangement ensures that the entire surrounding area can be illuminated with sufficient brightness.

1 - 20 . (canceled) 
     
     
         21 . An LED lamp that is configured to be fitted to a fluorescent lighting fixture having inlet ports, the LED lamp comprising:
 a substrate including first and second ends spaced from each other in a longitudinal direction of the substrate;   a plurality of LEDs mounted on a mount surface of the substrate;   a light-transmitting cover covering the plurality of LEDs; and   a pair of bases attached to the first and second ends of the substrate, respectively,   wherein each of the plurality of LEDs comprises:
 a package body having a bottom surface; 
 a first lead having a first bottom surface that is exposed from the bottom surface of the package body; 
 a second lead spaced apart from the first lead in a first direction and having a second bottom surface that is exposed from the bottom surface of the package body; 
 a LED chip electrically connected to the first lead and the second lead; and 
 a transparent sealing resin filled in a space defined by the package body such that the LED chip is covered by the sealing resin, 
 wherein each of the bases includes a pair of terminals, each of the terminals being configured to be fitted into a respective one of the inlet ports of the fluorescent lighting fixture. 
   
     
     
         22 . The LED lamp according to  claim 21 , wherein each of the LEDs has a thickness that is a dimension in a direction normal to the mount surface, a length that is a dimension along the first direction, and a width that is a dimension along a second direction perpendicular to the direction normal to the mount surface and the first direction, the thickness being smaller than the length and the width. 
     
     
         23 . The LED lamp according to  claim 21 , wherein the plurality of LEDs comprise a first group of LEDs arranged in a row along the longitudinal direction of the substrate and at a center of the substrate as viewed in the longitudinal direction. 
     
     
         24 . The LED lamp according to  claim 23 , wherein each of the first group of LEDs comprises a reflector configured to reflect light emitted from the LED chip of said each of the first group of LEDs. 
     
     
         25 . The LED lamp according to  claim 21 , wherein the first lead and the second lead of said each of the plurality of LEDs are bonded to a wiring pattern formed on the substrate. 
     
     
         26 . The LED lamp according to  claim 21 , wherein the package body comprises a frame that is made of a white resin. 
     
     
         27 . The LED lamp according to  claim 26 , wherein the frame comprises a reflective surface surrounding the LED chip and the sealing resin. 
     
     
         28 . The LED lamp according to  claim 21 , wherein the sealing resin comprises: a silicone resin that transmits light from the LED chip; and a fluorescent material that emits yellow light when excited by blue light. 
     
     
         29 . The LED lamp according to  claim 21 , wherein the cover is semicircular or circular in cross section. 
     
     
         30 . The LED lamp according to  claim 21 , wherein each of the first lead and the second lead protrudes outward from the package body when viewed in the second direction. 
     
     
         31 . The LED lamp according to  claim 21 , wherein an area of the first bottom surface and an area of the second bottom surface are different as viewed in the second direction. 
     
     
         32 . An LED lamp that is configured to be fitted to a fluorescent lighting fixture having inlet ports, the LED lamp comprising:
 a substrate including first and second ends spaced from each other in a longitudinal direction of the substrate;   a plurality of LEDs mounted on a mount surface of the substrate;   a light-transmitting cover covering the plurality of LEDs; and   a pair of bases attached to the first and second ends of the substrate, respectively, wherein each of the plurality of LEDs comprises:   a LED chip; and   a reflector surrounding the LED chip as viewed in a first direction perpendicular to the mount surface of the substrate such that light emitted from the LED chip has highest reflective intensity in the first direction,   wherein each of the bases includes a pair of terminals, each of the terminals being configured to be fitted into a respective one of the inlet ports of the fluorescent lighting fixture.   
     
     
         33 . The LED lamp according to  claim 32 , wherein each of the LEDs has a thickness that is a dimension in the first direction, a length that is a dimension along a second direction perpendicular to the first direction, and a width that is a dimension along a third direction perpendicular to the first direction and the second direction, the thickness being smaller than the length and the width. 
     
     
         34 . The LED lamp according to  claim 32 , wherein the plurality of LEDs comprise a first group of LEDs arranged in a row along the longitudinal direction of the substrate and at a center of the substrate as viewed in the longitudinal direction. 
     
     
         35 . The LED lamp according to  claim 32 , wherein the reflector is made of a white resin. 
     
     
         36 . The LED lamp according to  claim 32 , wherein each of the plurality of LEDs comprises a transparent sealing resin covering the LED chip, and the reflector surrounds the sealing resin as viewed in the first direction. 
     
     
         37 . The LED lamp according to  claim 36 , wherein the sealing resin comprises: a silicone resin that transmits light from the LED chip; and a fluorescent material that emits yellow light when excited by blue light. 
     
     
         38 . The LED lamp according to  claim 32 , wherein the cover is semicircular or circular in cross section. 
     
     
         39 . The LED lamp according to  claim 32 , wherein said each of the plurality of LEDs comprises a first lead and a second lead spaced apart from the first lead in the second direction, each of the first lead and the second lead being electrically connected to the LED chip. 
     
     
         40 . The LED lamp according to  claim 39 , wherein each of the plurality of LEDs further comprises a package body having a bottom surface,
 wherein the first lead has a first bottom surface that is exposed from the bottom surface of the package body, and the second lead has a second bottom surface that is exposed from the bottom surface of the package body, and   wherein each of the first lead and the second lead protrudes outward from the package body when viewed in the second direction.   
     
     
         41 . The LED lamp according to  claim 39 , wherein an area of the first bottom surface and an area of the second bottom surface are different when viewed in the first direction. 
     
     
         42 . The LED lamp according to  claim 39 , wherein the first lead and the second lead of said each of the plurality of LEDs are bonded to a wiring pattern formed on the substrate. 
     
     
         43 . An LED lamp that is configured to be fitted to a fluorescent lighting fixture having inlet ports, the LED lamp comprising:
 a substrate including first and second ends spaced from each other in a longitudinal direction of the substrate;   a plurality of LEDs mounted on a mount surface of the substrate;   a light-transmitting cover covering the plurality of LEDs; and   a pair of bases attached to the first and second ends of the substrate, respectively,   wherein each of the plurality of LEDs comprises:   a package body having a bottom surface,   a first lead having a first bottom surface that is exposed from the bottom surface of the package body;   a second lead spaced apart from the first lead in a first direction and having a second bottom surface that is exposed from the bottom surface of the package body;   a LED chip electrically connected to the first lead and the second lead; and   a transparent sealing resin filled in a space defined by the package body such that the LED chip is covered by the sealing resin,   wherein the package body comprises a reflector surrounding the LED chip as viewed in the second direction such that light emitted from the LED chip has highest reflective intensity in the second direction,   wherein each of the bases includes a pair of terminals, each of the terminals being configured to be fitted into one of the inlet ports of the fluorescent lighting fixture.   
     
     
         44 . The LED lamp according to  claim 43 , wherein the first lead and the second lead of said each of the plurality of LEDs are bonded to a wiring pattern formed on the substrate. 
     
     
         45 . The LED lamp according to  claim 43 , wherein the reflector is made of a white resin. 
     
     
         46 . The LED lamp according to  claim 43 , wherein the reflector comprises a reflective surface surrounding the LED chip and the sealing resin. 
     
     
         47 . The LED lamp according to  claim 43 , wherein each of the first lead and the second lead protrudes outward from the package body when viewed in the second direction. 
     
     
         48 . The LED lamp according to  claim 43 , wherein an area of the first lead and an area of the second lead are different when viewed in the second direction. 
     
     
         49 . An LED lamp comprising:
 a substrate;   a plurality of LEDs mounted on a mount surface of the substrate; and   a light-transmitting cover covering the plurality of LEDs,   wherein each of the plurality of LEDs comprises:   a package body having a bottom surface;   a first lead having a first bottom surface that is exposed from the bottom surface of the package body;   a second lead spaced apart from the first lead in a first direction and having a second bottom surface that is exposed from the bottom surface of the package body;   a LED chip electrically connected to the first lead and the second lead; and   a transparent sealing resin filled in a space defined by the package body such that the LED chip is covered by the sealing resin,   wherein the package body comprises a reflector surrounding the LED chip as viewed in the second direction such that light emitted from the LED chip has highest reflective intensity in the second direction, and the reflector is made of a white resin,   wherein the reflector comprises a reflective surface surrounding the LED chip and the sealing resin,   wherein an area of the first bottom surface and an area of the second bottom surface are different when viewed in the second direction.   
     
     
         50 . The LED lamp according to  claim 49 , wherein each of the first lead and the second lead protrudes outward from the package body when viewed in the second direction.