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INVENTION
Patent of the Russian Federation RU2151443
LIGHTING DEVICE
Applicant's name: Open Joint Stock Company "Lisma"
The name of the inventor: Minaev IF; Arkhipov Yu.A. Ivanov VN; Dyrov Yu.A.
The name of the patent owner: Open Joint Stock Company "Lisma"
Address for correspondence: 430034, Saransk, Svetotekhnikov 5, Lisma, OTI
Date of commencement of the patent: 1997.03.25
The invention relates to the electrical industry, in particular, improves the light device for plant irradiation. The technical result is an increase in radiation efficiency. The light device contains a radiation source, a start-regulating apparatus and a light distribution device. A new light source is that this radiation source is a sodium high-pressure lamp with the following radiation energy distribution in the region of photosynthetically active radiation (400-700 nm): 400-500 nm-20 ± 5%, 500-600 nm-50 ± 5%, 600-700 nm - 30 ± 5%. New in the light device is the fact that sodium is used in the filling composition in the amount of 0.01-0.25 μmol / cm 3 and mercury in an amount of 0.1-5.0 μmol / cm 3 .
DESCRIPTION OF THE INVENTION
The invention relates to the electrical industry, in particular, improves the light device for plant irradiation.
Known is a light device that contains a radiation source, a start-regulating apparatus and a light-distributing device [1].
The light device described contains a metal halide lamp with additives of sodium, thallium and indium halides as a radiation source.
The drawback of this installation is the non-optimal distribution of the radiation energy in the region of photosynthetically active radiation (FAS) -400-700 nm:
400-500 nm - 35 ± 5%
500-600 nm - 50 ± 5%
600-700 nm - 15 ± 5%
According to [2], the fraction of radiation in the conventionally red zone of the phased array (600-700 nm) should be at least 25%.
The aim of the proposed invention is to increase the efficiency of radiation of a light device when irradiating plants.
The goal is achieved by the fact that in a light device containing a radiation source, a starting control device and a light distribution device, said source is a high pressure sodium lamp with the following radiation energy distribution in the region of photosynthetically active radiation (400-700 nm)
400-500 nm - 20 ± 5%
500-600 nm - 50 ± 5%
600-700 nm - 30 ± 5%
The high pressure sodium lamp can be mercury-free, in this case sodium is used in the filling composition in the amount of 0,01 - 0,25 μmol / cm 3 , or mercury, while mercury and sodium in the amount of 0.1-5 are used in the filling, 0 and 0.01 to 0.25 μmol / cm 3, respectively.
In the light device according to the invention, the experimentally selected filling composition provides an increased radiation output in the conventionally red FAR region (600-700 nm), which ensures a high yield of most vegetables.
The invention is explained in the drawing.
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The installation contains a radiation source - a high-pressure sodium lamp 1. The ballast device 2 contains a ballast device 3 and an ignition device 4. The ballast device 3 can be inductive 5, capacitive 6, combined 7 and electronic 8. The radiation is distributed by a reflector 9. The principle of operation of the plant does not differ from the corresponding one for known installations. After connecting the light device to the power source, the high-pressure sodium lamp is ignited by means of an ignition device generating a high-voltage electric pulse. In the lamp after the ignition period, an arc discharge in pairs of sodium and mercury is fixed. A high-pressure sodium lamp emits a flux with a definite distribution of the radiation energy in the PHA region. |
The light redistribution device directs the radiation flow to the grown plants, ensuring a high yield of vegetables.
The radiation energy is distributed in the FAR region as follows:
400-500 nm - 20 ± 5%
500-600 nm - 50 ± 5%
600-700 nm - 30 ± 5%
Such a distribution of radiation energy is determined experimentally from the conditions for ensuring a high yield of vegetables.
With a different distribution of radiation energy, it is not possible to achieve high yields of cultivated vegetables: cucumbers, tomatoes, lettuce, etc.
The number of components for filling a high-pressure sodium lamp has been determined experimentally and is 0.01-0.25 μmol / cm 3 for sodium and 0.1-5.0 μmol / cm 3 for mercury.
With a smaller amount of sodium, they are not enough for the lamp to function normally for the entire lifetime, because Sodium leaves the discharge in the processes of adsorption, absorption, chemisorption.
With more sodium, an additional positive effect is no longer achieved, and the cost of acquiring, storing and processing increases.
The amount of mercury is determined from the conditions of the required voltage on the lamp.
Examples of specific performance are given in the table.
The introduction of the proposed invention makes it possible to increase the efficiency of radiation of a light device when growing vegetables (cucumbers, tomatoes, lettuce) in greenhouses.
THE USE OF LITERATURE
1. Pat. Russia, No. 2035794, BI N 14, 95 g.
2. Prykupets LB, Tikhomirov AA "Optimization of the radiation spectrum in the cultivation of vegetables in conditions of intense light culture", "Lighting Engineering", N 3, 92 g.
CLAIM
1. A light device comprising a radiation source, a start-regulating apparatus and a light distribution device, characterized in that said radiation source is a sodium high-pressure lamp with the following radiation energy distribution in the region of photosynthetically active radiation (400-700 nm):
400 ± 500 nm - 20 ± 5%,
500 ± 600 nm - 50 ± 5%,
600 - 700 nm - 30 ± 5%,
And in the filling of the lamp sodium is used in the amount of 0,01 - 0,25 μmol / cm 3 .
2. A light device according to claim 1, characterized in that mercury is additionally used in the filling of the lamp in an amount of 0.1 to 5.0 μmol / cm 3 .
print version
Date of publication 12.11.2006гг
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