Method of cultivating plant and illuminator for cultivating plant

• US 20040109302A1
• Filed: 01/09/2004
• Published: 06/10/2004
• Est. Priority Date: 02/28/2001
• Status: Abandoned Application

• Current Assignee: CCS Corporation
• Original Assignee: CCS Corporation
• Inventors: Mori, Yasuhiro, Yoneda, Kenji
• Application Number:
  US10/468,155
• Publication Number:
  US 20040109302A1
• Time in Patent Office: Days
• US Class Current: 362/2
• CPC Class Codes: A01G 7/045 with electric lighting
• CPC Class Codes: Y02P 60/14 Measures for saving energy, e.g. in green houses

Abstract

A plant cultivation method, wherein plants are cultivated by using means for irradiating pulsed light with a period of 2 μsec to 1 msec and a duty ratio (DT ratio) of 20 to 70%, using a light emitting diode that emits white light or two types of light of white and red as the light source, and a plant cultivation illuminator used therein.

Claims

1. A plant cultivation method, wherein plants are cultivated by using means for irradiating pulsed light with a period of 2 μ

sec to 1 msec and a duty ratio (DT ratio) of 20 to 70%, using a light emitting diode that emits white light as the light source.

2. A plant cultivation method, wherein plants are cultivated by using means for irradiating pulsed light with a period of 2 μ

sec to 1 msec and a duty ratio (DT ratio) of 20 to 70%, using a light emitting diode that emits two types of light, white and red, as the light source.

3. A plant cultivation illuminator, comprising means for irradiating pulsed light with a period of 2 μ

sec to 1 msec and a duty ratio (DT ratio) of 20 to 70%, using a light emitting diode that emits white light as the light source.

4. A plant cultivation illuminator, comprising means for irradiating pulsed light with a period of 2 μ

sec to 1 msec and a duty ratio (DT ratio) of 20 to 70%, using a light emitting diode that emits two types of light, white and red, as the light source.