Patent ID: 7734171
Filing Date: 2010-06-08
Classification: G03B,H04N

Abstract:
1. A system for retaining a sensor assembly, the system comprising: a mounting plate having a mounting area for the sensor assembly, the mounting plate having at least one datum, the at least one datum being located outside the mounting area; the sensor assembly having a sensor assembly plate with a perimeter and a sensor housing, the sensor assembly plate having a front side and a back side, the back side of the sensor assembly plate being adjacent to the mounting area of the mounting plate, the sensor housing being located on the front side of the sensor assembly plate; a retainer ring having at least one spring member, the retainer ring coupled to the mounting plate, the retainer ring being configured to retain the sensor assembly to the mounting plate; wherein the at least one spring member of the retainer ring is configured to bias the sensor assembly substantially toward the at least one datum in a direction that is substantially parallel to a plane defined by the mounting area, such that a portion of the perimeter of the sensor assembly plate is directly adjacent to the at least one datum.