Seiji Nishiwaki

TL;DR: In this paper, color filters that split light by employing near-field interference effects instead of absorption provide enhanced signal levels for dense, small-pixel image sensors, which can be used for image classification.

TL;DR: In this paper, a plurality of imaging regions are provided in one-to-one correspondence with a set of optical systems and are disposed on optical axes of the respective optical systems.

TL;DR: In this paper, a scanning color laser microscope comprises red, green and blue laser sources, objective lenses for focusing R, G and B laser emitted from R, B and C laser sources on a specimen, respectively, condenser lenses for condensing R and G laser lights reflected from or transmitted through the specimen.

TL;DR: In this paper, the diameter of the largest one of the circles inscribing in the micro-regions lies in the range from 0.2 [mu]m to 1.5 [m]m.

TL;DR: An optical head arranged in such a manner that light emitted from a semiconductor laser (8) is inputted and coupled in a waveguide layer (3C) by a grating coupler (4C) having a concentric or spiral structure formed by concavities and convexities, passing toward to outer periphery in the layer, the waveguide light (12C) is shifted at the outermost peripheral portion of the waveguera-layer to a wavegueta-layer (3B) so as to convert the wave-guide light(12C