US Patent No. 10,502,935

IMAGE SENSOR MODULES AND LUMINAIRES INCORPORATING THE SAME


Patent No. 10,502,935
Issue Date December 10, 2019
Title Image Sensor Modules And Luminaires Incorporating The Same
Inventorship Jin Hong Lim, Durham, NC (US)
John Roberts, Durham, NC (US)
Steve Wilcenski, Cary, NC (US)
Assignee IDEAL INDUSTRIES LIGHTING LLC, Sycamore, IL (US)

Claim of US Patent No. 10,502,935

1. An asymmetrical lens of an image sensor module comprising:an optical axis;
a front surface comprising a first set of normal axes (x, y) in a plane normal to the optical axis and a negative radius of curvature or positive radius of curvature along each of the normal axes (x, y); and
a back surface comprising a second set of normal axes (x?,y?) in the plane normal to the optical axis and a negative radius of curvature or positive radius of curvature along each of the normal axes (x?,y?),
wherein the asymmetrical lens has positive refractive power in the x-axis and negative refractive power in the y-axis of the image plane of the asymmetrical lens,
wherein refractive power in the x-axis and the y-axis of the image plane differ, and
wherein the front surface comprises a negative radius of curvature normal to a positive radius of curvature along the first set of normal axes (x, y) and the back surface comprise a negative radius of curvature normal to a positive radius of curvature along the second set of normal axes (x?, y?).