Hydroponic cultivation system, hydroponic cultivation method, plant cultivation system, and plant cultivation apparatus

• US 10,342,190 B2
• Filed: 01/26/2017
• Issued: 07/09/2019
• Est. Priority Date: 01/24/2014
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Miyabe, Haruyasu, Muraoka, Tatsuo, Satoh, Akihiko
• Primary Examiner(s): Tsang, Lisa L
• Application Number:
  US15/416,107
• Publication Number:
  US 20170127628A1
• Time in Patent Office: 894 Days
• Field of Search: 47 62 R, 47 581 LS, 36221715, 36229601, 362297, 362298, 362301, 362341, 362346, 362349
• CPC Class Codes: A01C 21/005 Following a specific plan, e.g. pattern
• CPC Class Codes: A01G 31/06 Hydroponic culture on racks or in stacked containers
• CPC Class Codes: A01G 7/045 with electric lighting
• CPC Class Codes: A01G 9/20 Forcing-frames; Lights , i.e. glass panels covering the forcing-frames
• CPC Class Codes: A01G 9/249 Lighting means with special arrangements for promoting growth A01G7/045
• CPC Class Codes: F21V 17/08 onto the supporting or suspending arrangements of the lighting device, e.g. power cords, standards
• CPC Class Codes: F21V 7/0008 providing for indirect lighting
• CPC Class Codes: Y02P 60/21 Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures

Abstract

A plant cultivation apparatus includes a lighting device configured to apply artificial light to plants, the lighting device being supported movably in a vertical direction and a height of the lighting device from the plants being adjustable, a projection part projecting from a lateral side of the lighting device, and a light reflector disposed outside the lateral side of the lighting device to reflect light from the lighting device back to the plants, the light reflector including a vertically extending slit that defines a movable range of the lighting device in the vertical direction in which the height of the lighting device from the plants is adjustable.

Claims

1. A plant cultivation apparatus comprising:

a lighting device configured to apply artificial light to plants, the lighting device being supported movably in a vertical direction and a height of the lighting device from the plants being adjustable;

a projection part projecting from a lateral side of the lighting device; and

a planar light reflector disposed outside the lateral side of the lighting device to reflect light from the lighting device back to the plants, the planar light reflector including a vertically extending slit that defines a movable range of the lighting device in the vertical direction in which the height of the lighting device from the plants is adjustable, the vertically extending slit extending to a top of the planar light reflector.

2. The plant cultivation apparatus as claimed in claim 1, wherein

the projection part is a wiring cable configured to supply electricity to the lighting device.

3. The plant cultivation apparatus as claimed in claim 1, wherein

the planar light reflector includes a notch at an upper part of the planar light reflector, and a part of a support supporting the lighting device is inserted into the notch.

4. The plant cultivation apparatus as claimed in claim 1, wherein

the planar light reflector includes a hanger configured to traverse the vertically extending slit at an upper part of the slit.