Sunlight measuring device
First Claim
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1. A sunlight measuring device comprising:
- a sunlight measurement means for sensing incoming light at a particular site over a period of time and converting said incoming light to an electronic signal;
a microprocessor that receives said electronic signal, determines a magnitude of said electronic signal and calculates an accumulated light value over said period of time, and compares said accumulated light value to threshold values that are programmed into said microprocessor;
a plurality of light condition indicators, each single light condition indicator corresponding to a particular one of said threshold values; and
a power supply;
wherein, when said accumulated light value reaches one of said threshold values, said microprocessor causes a corresponding light condition indicator of said plurality of light condition indicators to be illuminated; and
wherein said illuminated light condition indicator indicates a light condition that corresponds to one of several light conditions, said several light conditions being indicated in common gardening terms that include a full sun condition and a full shade condition.
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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.
25 Citations
18 Claims
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1. A sunlight measuring device comprising:
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a sunlight measurement means for sensing incoming light at a particular site over a period of time and converting said incoming light to an electronic signal; a microprocessor that receives said electronic signal, determines a magnitude of said electronic signal and calculates an accumulated light value over said period of time, and compares said accumulated light value to threshold values that are programmed into said microprocessor; a plurality of light condition indicators, each single light condition indicator corresponding to a particular one of said threshold values; and a power supply; wherein, when said accumulated light value reaches one of said threshold values, said microprocessor causes a corresponding light condition indicator of said plurality of light condition indicators to be illuminated; and wherein said illuminated light condition indicator indicates a light condition that corresponds to one of several light conditions, said several light conditions being indicated in common gardening terms that include a full sun condition and a full shade condition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A sunlight measuring device comprising:
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a sunlight measurement means for sensing incoming light at a particular site over a period of time, said sunlight measurement means comprising a sunlight collector lens, a light sensor, and a printed circuit board with a microprocessor; a plurality of light condition indicators, each single light condition indicator corresponding to a particular one of said threshold values; a power supply; and a chassis on which said printed circuit board is mounted, said chassis having a translucent area for allowing passage of said incoming light through said sunlight collector lens to said light sensor; wherein said light sensor converts said incoming light into an electrical signal and transmits said signal to said microprocessor; wherein said microprocessor calculates an accumulated light signal over time and compares said accumulated light signal with a series of threshold values that are programmed into said microprocessor; wherein, when said accumulated light signal reaches one of said threshold values, said microprocessor causes a corresponding light condition indicator of said plurality of light condition indicators to be illuminated; and wherein said illuminated light condition indicator indicates a light condition that corresponds to one of several light conditions, in common gardening terms that include a full sun condition and a full shade condition.
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Specification