JPS6420034A - Illuminator for plant growth - Google Patents
Illuminator for plant growthInfo
- Publication number
- JPS6420034A JPS6420034A JP62175073A JP17507387A JPS6420034A JP S6420034 A JPS6420034 A JP S6420034A JP 62175073 A JP62175073 A JP 62175073A JP 17507387 A JP17507387 A JP 17507387A JP S6420034 A JPS6420034 A JP S6420034A
- Authority
- JP
- Japan
- Prior art keywords
- plants
- lamps
- intermittent
- illumination time
- transistor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Cultivation Of Plants (AREA)
Abstract
PURPOSE:To efficiently irradiate plants with light rays suitably to growth rate of plants and to grow plants with saved electric power, by controlling intensity of light rays through a regulator in such a way that average light quantum numbers of photosyntheses in continuous illumination time and intermittent illumination time become specific values. CONSTITUTION:Culture plants 3 are arranged in a plant growth device 1 and illuminators 2 having discharge lamps 7 such as fluorescent lamps 7 are set at the upper part. Then a DC electric source 4 for a regulator connected to the discharge lamps 7 is sent and a high-frequency electric source 5 consisting of a coil 51, transistors 52 and 53, base resistances thereof 54 and 55, a condenser 56, an output transformer 57, a secondary winding thereof 58 and a feedback winding 59 is subjected to self- oscillation to generate high-frequency output voltage. When a transistor 62 of an intermittent control part 6 consisting of a full-wave rectifier 61, a transistor 62 and a drive circuit 63 is in on state in the operation, the lamps 7 are lighted and illuminate the plants and when the transistor is in off state, the lamps are suspended. For example, at a short-time period of 1-50ms, intermittent illustration is carried out by regulating average light quantum numbers E0 and E1 of photosyntheses in continuous illumination time and intermittent illumination time E0>=110muEm<-2>s<-1> and E1>=80muEm<-2>s<-1>, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62175073A JPS6420034A (en) | 1987-07-14 | 1987-07-14 | Illuminator for plant growth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62175073A JPS6420034A (en) | 1987-07-14 | 1987-07-14 | Illuminator for plant growth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6420034A true JPS6420034A (en) | 1989-01-24 |
| JPH0518533B2 JPH0518533B2 (en) | 1993-03-12 |
Family
ID=15989759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62175073A Granted JPS6420034A (en) | 1987-07-14 | 1987-07-14 | Illuminator for plant growth |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6420034A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007252211A (en) * | 2006-03-20 | 2007-10-04 | Nara Prefecture | Apparatus and method for inhibiting blooming of long-day blooming plant |
| JP2016202125A (en) * | 2015-04-27 | 2016-12-08 | 興和株式会社 | Lighting system for plant cultivation and plant cultivation method |
| US9681515B2 (en) | 2015-05-13 | 2017-06-13 | Juha Rantala | LED structure with a dynamic spectrum and a method |
| US10225899B2 (en) | 2015-04-14 | 2019-03-05 | Kowa Company, Ltd. | Light system for plant cultivation |
| US10440900B1 (en) | 2019-01-22 | 2019-10-15 | Calyx Cultivation Tech. Corp. | Grow light with adjustable height and emission spectrum |
| US11499707B2 (en) | 2020-04-13 | 2022-11-15 | Calyxpure, Inc. | Light fixture having a fan and ultraviolet sterilization functionality |
| US11759540B2 (en) | 2021-05-11 | 2023-09-19 | Calyxpure, Inc. | Portable disinfection unit |
-
1987
- 1987-07-14 JP JP62175073A patent/JPS6420034A/en active Granted
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007252211A (en) * | 2006-03-20 | 2007-10-04 | Nara Prefecture | Apparatus and method for inhibiting blooming of long-day blooming plant |
| US10225899B2 (en) | 2015-04-14 | 2019-03-05 | Kowa Company, Ltd. | Light system for plant cultivation |
| JP2016202125A (en) * | 2015-04-27 | 2016-12-08 | 興和株式会社 | Lighting system for plant cultivation and plant cultivation method |
| US9681515B2 (en) | 2015-05-13 | 2017-06-13 | Juha Rantala | LED structure with a dynamic spectrum and a method |
| US10104740B2 (en) | 2015-05-13 | 2018-10-16 | Juha Rantala | LED structure with a dynamic spectrum and a method |
| US10398000B2 (en) | 2015-05-13 | 2019-08-27 | Illumipure Corp | LED structure with a dynamic spectrum and a method |
| US10440900B1 (en) | 2019-01-22 | 2019-10-15 | Calyx Cultivation Tech. Corp. | Grow light with adjustable height and emission spectrum |
| US11499707B2 (en) | 2020-04-13 | 2022-11-15 | Calyxpure, Inc. | Light fixture having a fan and ultraviolet sterilization functionality |
| US11759540B2 (en) | 2021-05-11 | 2023-09-19 | Calyxpure, Inc. | Portable disinfection unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0518533B2 (en) | 1993-03-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |