Patent ID: 8497464
Filing Date: 2013-07-30
Classification: G01J,G02B,H01L

Abstract:
1. A detector arrangement comprising: a light detector having a plurality of light sensitive regions and a plurality of light insensitive regions, the light sensitive regions being separated from each other by the light insensitive regions; a light deflection element above the light detector, which has a plurality of groups of light entrance surfaces, each group having a planar first light entrance surface and at least one planar second light entrance surface adjacent thereto, each of the first light entrance surfaces being located above one of the light sensitive regions and each second light entrance surface being located above one of the light insensitive regions, wherein the first light entrance surface of each group is oriented substantially perpendicular to light incident on the detector arrangement so that the incident light strikes the light sensitive region therebeneath with substantially no deflection due to refraction, and wherein each second light entrance surface of each group is inclined relative to the incident light and to the first light entrance surface of the group to deflect the incident light by refraction onto the light sensitive region below the first light entrance surface of the group.