Image sensor modules and luminaires incorporating the same

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 negative refractive power in both the x-axis and y-axis of the image plane of the asymmetrical lens, and
• wherein negative refractive power range in both the x-axis and y-axis of the image plane are −300<fx/F<−8, −100<fy/F<−5, wherein fx and fy are the focal length of the asymmetric lens in the x-axis and y-axis of the image plane, respectively, and F is focal length of the primary lens assembly of the image sensor module.

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,
• wherein positive refractive power range in the x-axis of the image plane is 10<fx/F<5000 and negative refractive power range in the y-axis of the image plane is −100<fy/F<−5, where fx and fy are the focal length of the asymmetric lens in the x-axis and y-axis of the image plane, respectively, and F is the focal length of a primary lens assembly of the image sensor module.