Patent · US Expired

Sunlight measuring device

US7271887B2 · kind B2 · utility

9Cited by
15References
18Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 16, 2005
Grant dateSep 18, 2007
Priority date
Expiry dateJan 3, 2026

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01J2001/4266
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.