| 摘要 |
PROBLEM TO BE SOLVED: To provide a light-emitting device in which, by mainly diffusing light emission of a luminous element in the front direction so as to spread in a well-balanced manner from this front direction to the periphery, the effect of expansion of a light emission region and improvement of the whole of light emission efficiency is obtained.SOLUTION: A light-emitting device 11 includes: a luminous element 13; and a light diffusion surface 21 provided on the light-emitting surface side of the luminous element 13. A plurality of fine projections 22 are provided on the light diffusion surface 21. The plurality of these fine projections are formed in a frustum shape having an inclined surface which is erected obliquely from the light diffusion surface 21, and the top surface formed by making the top of this inclined surface flat. |
