Inventor

ASHDOWN IAN E

CA2 patents

Patents

2 patents

US5834765ANov 10, 1998

Integral ambient light and occupancy sensor having a linear array of sensor element and a segmented slit aperture device

LEDALITE ARCHITECTURAL PRODUCT111 citations91

US5253036AOct 12, 1993

Near-field photometric method and apparatus

LEDALITE ARCHITECTURAL PRODUCT27 citations86