Patent ID: 6531692
Filing Date: 2003-03-11
Classification: G06F

Abstract:
A coupling assembly in a computer input device having a first housing portion with an aperture therein, a radiation source, and an image detector, the radiation source emitting radiation through the aperture and the image detector receiving radiation reflected off of a work surface over which the computer input device is used, the coupling assembly comprising:a source housing coupled to the radiation source; a first optical coupler, having a longitudinal length and generally defining a substantially linear longitudinal axis, a collection end located proximate the radiation source and an emitting end emitting radiation collected by the collection end to form an illumination pattern on the work surface, the first optical coupler being disposed generally between the source housing and the aperture in the first housing portion; and a first optical coupler housing supporting the first optical coupler therein such that its longitudinal axis is at an angle relative to the work surface between 0 and 90 degrees and supporting the first optical coupler to orient the first optical coupler at a predetermined, desired orientation about its longitudinal axis.