Patent ID: 9395237
Filing Date: 2016-07-19
CPC Classification: G01J,G02B

Claim Text:
1. An image sensor module comprising: an image sensor having an image surface; a plurality of lenses arranged sequentially from an object side to the image surface side, each of the lenses configured to refract an incident light from the object side; and at least one infrared cut-off filter configured to cut off an infrared component from the incident light, opposite surfaces of the at least one infrared cut-off filter having a same curvature radius of not less than 8 millimeters (mm) configured such that a maximum incidence angle of light in relation to the image sensor is not more than 15 degrees and the at least one infrared cut-off filter has a focal distance of not less than 100 mm; wherein opposite surfaces of the at least one infrared cut-off filter have a same concave shape in relation to the object side, wherein the plurality of lenses include: wherein opposite surfaces of each of the plurality of lenses are aspherical surfaces, and the opposite surfaces of the at least one infrared cut-off filter are spherical surfaces.