Patent ID: 7742234
Filing Date: 2010-06-22
Classification: G02B,G02F

Abstract:
1. A composite optical-dividing device, receiving a light beam having multiple wavelength bands in mix, the composite optical-dividing device comprising: a first optical-patch, having a plurality of micro-structural lenses with same shape, the micro-structural lenses receiving the light beam to produce a deflected light with a condensing degree; and a second optical-patch, having a first region and a second region, wherein the first region has a plurality of periodic polygonal structures and receives a passing portion of the deflected light to divide the wavelength bands and the divided wavelength bands are deflected onto a specific region in a plane, according to individual wavelengths of the wavelength bands, wherein the second region has a polygon structure, receiving a pass portion of the deflected light to deflect onto a specific region on the plane without dividing the wavelength bands.