Patent ID: 7453653
Filing Date: 2008-11-18
Classification: G02B,H01L,H04N

Abstract:
1. A low height imaging system, comprising: one or more optical channels and a detector array, each of the optical channels (a) associated with at least one detector of the array, (b) having one or more optical components and a restrictive ray corrector that directs steeper incident angle field rays onto the at least one detector with angles of incidence of the field rays onto the at least one detector without the restrictive ray corrector; wherein each of the optical channels comprises aspheric optical structure such that optical MTF of the imaging system has no zeroes in a passband of the detector, and wherein a Z-length from a most object side optical component surface of the low height imaging system to the at least one detector is less than twice an effective focal length of the low height imaging system.