The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 22, 2011
Filed:
Aug. 25, 2009
Kaoru Kumagai, Itabashi-ku, JP;
Shugo Akiyama, Itabashi-ku, JP;
Kaoru Kumagai, Itabashi-ku, JP;
Shugo Akiyama, Itabashi-ku, JP;
Kabushiki Kaisha Topcon, Tokyo, JP;
Abstract
A plant sensor includes a light source section having first and second light emitters configured to irradiate first and second measuring light toward an object to be measured, respectively, and a light receiver configured to receive reflected light from the object to be measured, and output light-receiving signals. A controller is configured to control emission of the first and second light emitters at a different timing, an integrator is configured to integrate the light-receiving signals, and output an integration signal, and a calculator is configured to calculate, according to the integration signal, a reflection rate as a ratio of light intensity of the reflected light of the first measuring light from the object to be measured to light intensity of the first measuring light, a reflection rate as a ratio of light intensity of the reflected light of the second measuring light from the object to be measured to light intensity of the second measuring light, and to obtain information regarding a growing condition of the object to be measured.