Patent ID: 7820428

Claim:
A field deployable optical assembly for use in testing a light-responsive sample, the assembly comprising: a microfluidic device, the microfluidic device comprising a tethered control substance; a first optical package comprising a light emitting diode (LED), a first optical device, a first light-path control, and a first reference line disposed in the center of the first light-path control, defined by the orientation of the first light-path control; a second optical package comprising a photo sensor, a second optical device, a second light-path control, and a second reference line disposed in the center of the second light-path control, defined by the orientation of the second light-path control; and an optical mount; wherein the first optical package is configured to guide and focus light from the LED onto the sample; wherein in response to a substance within the sample being associated with the tethered control and attaching to the tethered control, the sample emits light; wherein the second optical package is configured to guide and focus the light emitted from the sample onto the photo sensor; wherein the first optical package and the second optical package are mounted within the optical mount on the same side of, and at an angle relative to, the microfluidic device; and wherein each reference line creating a 30 degree angle relative to the microfluidic device, with a 120 degree included angle therebetween.