Optics: measuring and testing – Photometers – Photoelectric
Reexamination Certificate
2007-09-18
2007-09-18
Lee, Hwa (Department: 2877)
Optics: measuring and testing
Photometers
Photoelectric
C356S227000, C356S225000
Reexamination Certificate
active
11204944
ABSTRACT:
A sunlight measuring device that quantifies the accumulation of light at a particular site. The sunlight measuring device is a battery-operated device mounted on a stake for easy insertion into the ground. The device is placed at the intended site for growing a plant. The light that falls on the sunlight measuring device over a period of time is accumulated and the light accumulation is represented by a visual signal that indicates one of four light conditions: full sun, partial sun, partial shade, full shade.
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Bickel William C.
Richardson James E.
Lee Hwa
Mathers Patricia M.
Suncalc Corporation
Ton Tri
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