CONTROLLING ULTRAVIOLET INTENSITY OVER A SURFACE OF A LIGHT SENSITIVE OBJECT

Title:

CONTROLLING ULTRAVIOLET INTENSITY OVER A SURFACE OF A LIGHT SENSITIVE OBJECT

Document Type and Number:

WIPO Patent Application WO/2018/062885

Kind Code:

A1

Abstract:

An approach for controlling ultraviolet intensity over a surface of a light sensitive object is described. Aspects involve using ultraviolet radiation with a wavelength range that includes ultraviolet-A and ultraviolet-B radiation to irradiate the surface. Light sensors measure light intensity at the surface, wherein each sensor measures light intensity in a wavelength range that corresponds to a wavelength range emitted from at least one of the sources. A controller controls the light intensity over the surface by adjusting the power of the sources as a function of the light intensity measurements. The controller uses the light intensity measurements to determine whether each source is illuminating the surface with an intensity that is within an acceptable variation with a predetermined intensity value targeted for the surface. The controller adjusts the power of the sources as a function of the variation to ensure an optimal distribution of light intensity over the surface.

Inventors:

BARBER ARTHUR PETER III (US)
SHATALOV MAXIM S (US)
DOBRINSKY ALEXANDER (US)
SHUR MICHAEL (US)

Application Number:

PCT/KR2017/010790

Publication Date:

April 05, 2018

Filing Date:

September 28, 2017

Export Citation:

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Assignee:

SEOUL VIOSYS CO LTD (KR)
SENSOR ELECTRONIC TECH INC (US)

International Classes:

A01G7/04; A01G7/06; G06Q50/02; H05B44/00

Domestic Patent References:

WO2015119510A1

2015-08-13

Foreign References:

US20100193707A1	2010-08-05
US8384047B2	2013-02-26
JP2012205520A	2012-10-25
EP2767154A1	2014-08-20
US20020074559A1	2002-06-20
US20100193707A1	2010-08-05
US20100115830A1	2010-05-13

Other References: