Patent ID: 9531963
Filing Date: 2016-12-27
CPC Classification: H04N

Claim Text:
1. An image capturing device, comprising: an optical system configured to focus lights from an object to generate optical information, the optical system including a diaphragm position along a center line of the optical system; a filter provided along the center line of the optical system, the filter having a plurality of types of spectral characteristics; a sensor configured to convert the optical information of the object to electronic data, the sensor having a plurality of spectral transmittance values that sequentially and spatially change; and a lens array provided between the optical system and the sensor and configured to have a plurality of lenses being arranged in substantially parallel in a direction of a two-dimensional surface of the sensor, wherein the lights from the object pass through the respective positions of the sensor to simultaneously form a plurality of types of spectral image of the object on an image plane of the sensor, wherein the filter includes a transparent substrate and a thin film formed on the transparent substrate, wherein the thin film formed on the transparent substrate has a wedge-shape thickness such that a first side area of the thin film has a first thickness, and a second side area of the thin film has a second thickness, wherein the second thickness is greater that the first thickness, and wherein the wedge-shaped thickness of the thin film changes in a non-stepwise manner from the first side area to the second side area.