Renner, Otto, Boisselle & Sklar, LLP
Optical sheet, light-emitting device, and method for manufacturing optical sheet
A surface of a transparent substrate 5 which is adjacent to a light emitting body has a surface structure 13 that is defined by dividing the surface into a plurality of linear segments of width w which are inclined so as to extend in a specific direction in a plane of the surface and dividing the linear segments into minute regions aligned along the longitudinal direction of the linear segments such that the largest inscribed circle of the minute regions has a diameter from 0.2 μm to 1.5 μm. Each of the minute regions is formed by a raised or recessed portion formed in the surface of the transparent substrate 5. The proportion of the raised portions and the proportion of the recessed portions, P and 1−P, are determined such that P is in the range of 0.4 to 0.98.
Panasonic Corporation
G G H Y
G02B G02B H01L Y10T
additional inventional inventional additional
Masa-aki Seiji Tatsuya Shin-ichi Jyunpei
Suzuki Nishiwaki Nakamura Wakabayashi Matsuzaki