Light irradiation device
A light irradiation device and the technology of the irradiation device, which are applied in the directions of water supply device, irradiation, phototherapy, etc., can solve problems such as induced skin, aging or cancer, etc.
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experiment example 1
[0118] Experimental Example 1 - Bactericidal Effect According to Irradiation Conditions
[0119] Figure 10 It is a graph illustrating a sterilization effect according to irradiation conditions when light is irradiated to a sterilization target using a light emitting device according to a conventional invention and a light emitting device according to an embodiment of the present invention. exist Figure 10 Among them, the bacterium used as the sterilizing object is Staphylococcus aureus, smear Staphylococcus aureus on the bacterial medium, cultivate it at 35-37°C for one day, collect the bacterial colonies formed on the bacterial medium, turbid in physiological saline and Centrifuge, discard the supernatant, then add physiological saline, dilute it, and prepare a bacterial solution with a concentration suitable for the bactericidal experiment. The thus-produced bacterial liquid was placed in a separate container, and the light-emitting device according to the conventional...
experiment example 2
[0130] Experimental Example 2- Separate bactericidal test of the first light and the second light
[0131] In this test, a MRSA strain was used as a pathogen, and after culturing the MRSA strain, a suspension of a predetermined bacterial concentration (7 log) was prepared. The bacterial suspension is irradiated with the first light and the second light according to the light intensity, respectively. At this time, the wavelength of the first light is 405 nm, and the wavelength of the second light is 275 nm. Bacteria irradiated with the first light and the second light are diluted to a predetermined concentration, inoculated on an agar plate, and then cultured. Subsequently, the number of colonies of the cultured bacteria was confirmed, and the numerical value was converted into a logarithmic value. Each test was performed five times under the same conditions.
[0132] Table 2 and Figure 11a It is a table and a graph showing the results of testing the bactericidal power o...
experiment example 3
[0139] Experimental example 3 - Bactericidal power test when the first light and the second light are combined
[0140] In this test, a MRSA strain was used as a pathogen, and after culturing the MRSA strain, a suspension of a predetermined bacterial concentration (7 log) was prepared. The bacterial suspension is irradiated with the first light alone, the second light is irradiated alone, the first light and the second light are combined and irradiated, and the bacterial suspension is not irradiated with any light. The case of light is shown as Comparative Example 2, the case of irradiating the first light alone is shown as Comparative Example 3, and the case of irradiating in combination with the first light and the second light is shown as an example. At this time, the wavelength of the first light is 405nm and the dose is 120J / cm 2 , the wavelength of the second light is 275nm and the dose is 3mJ / cm 2 . In the case of the example, at 3mJ / cm 2 After irradiating the sec...
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