Light irradiating device and phototherapy machine
First Claim
1. A light irradiating device comprisinga group of LED light sources that has at least one LED light source two-dimensionally arranged on a flexible substrate, whereinlight output by the group of LED light sources includesfirst wavelength region light whose light-emission intensity peak is in a wavelength range of 380 nm or more and 430 nm or less, andsecond wavelength region light whose light-emission intensity peak is in a wavelength range of more than 430 nm and 635 nm or less,the at least one LED light source includesa first LED element that outputs the first wavelength region light, anda wavelength conversion member that absorbs the first wavelength region light output from the first LED element and outputs the second wavelength region light,at least one layer of a spacer is provided on a light-output-side surface of the flexible substrate in which the first LED element is two-dimensionally arranged,of the at least one layer of the spacer, at least one layer of a spacer is a spacer that contains the wavelength conversion member, anda total value of thicknesses of constituents provided from the first LED element to an affected part is 0.5 times or more an average value of pitches between first LED elements.
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Accused Products
Abstract
Light irradiation that is suitable for treatment for a relatively small diseased part and is performed almost uniformly and efficiently for the entirety of an affected part even when the affected part is not flat is realized. Light output from a plurality of LED chips includes first wavelength region light whose light-emission intensity peak is in a wavelength range of 380 nm or more and 430 nm or less and second wavelength region light whose light-emission intensity peak is in a wavelength range of more than 430 nm and 635 nm or less, and a group of LED light sources has uniform in-plane intensity of light irradiation.
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Citations
15 Claims
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1. A light irradiating device comprising
a group of LED light sources that has at least one LED light source two-dimensionally arranged on a flexible substrate, wherein light output by the group of LED light sources includes first wavelength region light whose light-emission intensity peak is in a wavelength range of 380 nm or more and 430 nm or less, and second wavelength region light whose light-emission intensity peak is in a wavelength range of more than 430 nm and 635 nm or less, the at least one LED light source includes a first LED element that outputs the first wavelength region light, and a wavelength conversion member that absorbs the first wavelength region light output from the first LED element and outputs the second wavelength region light, at least one layer of a spacer is provided on a light-output-side surface of the flexible substrate in which the first LED element is two-dimensionally arranged, of the at least one layer of the spacer, at least one layer of a spacer is a spacer that contains the wavelength conversion member, and a total value of thicknesses of constituents provided from the first LED element to an affected part is 0.5 times or more an average value of pitches between first LED elements.
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8. A light irradiating device comprising
a group of LED light sources that has at least one LED light source two-dimensionally arranged on a flexible substrate, wherein light output by the group of LED light sources includes first wavelength region light whose light-emission intensity peak is in a wavelength range of 380 nm or more and 430 nm or less, and second wavelength region light whose light-emission intensity peak is in a wavelength range of more than 430 nm and 635 nm or less, the group of LED light sources includes a first LED element that is one of the LED light sources and outputs the first wavelength region light, and a second LED element that is one of the LED light sources and is different from the first LED element, and outputs the second wavelength region light, at least one layer of a spacer is provided on a light-output-side surface of the group of LED light sources, the group of LED light sources includes at least two second LED elements, one first LED element and the two second LED elements are in rectangular shapes in top view, the one first LED element is arranged between the two second LED elements, the one first LED element and the two second LED elements are arranged so that each side of the rectangular shape of each of the two second LED elements and each side of the rectangular shape of the one first LED element do not face each other, and a total value of thicknesses of constituents provided from the first LED element and the second LED element to an affected part is 0.5 times or more an average value of pitches between the LED light sources.
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15. A light irradiating device comprising
a group of LED light sources that has at least one LED light source two-dimensionally arranged on a flexible substrate, wherein light output by the group of LED light sources includes first wavelength region light whose light-emission intensity peak is in a wavelength range of 380 nm or more and 430 nm or less, and second wavelength region light whose light-emission intensity peak is in a wavelength range of more than 430 nm and 635 nm or less, the at least one LED light source includes a first LED element that outputs the first wavelength region light, and a wavelength conversion member that absorbs the first wavelength region light output from the first LED element and outputs the second wavelength region light, at least one layer of a spacer is provided on a light-output-side surface of the flexible substrate in which the first LED element is two-dimensionally arranged, and a total value of thicknesses of constituents provided from the first LED element to an affected part is two times or less an average value of pitches between first LED elements.
Specification