Mark Brown Nelson
Land Surveyors in Taylorsville, UT
License number
Utah 5047614-2203
Issued Date
May 29, 2008
Expiration Date
Mar 31, 2017
Category
Engineer/Land Surveyor
Type
Professional Structural Engineer
Address
Address
Taylorsville, UT
Education
UNIVERSITY OF UTAH, Dec 17, 1987
Personal information
See more information about Mark Brown Nelson at radaris.comName
Address
Phone
4862 Park Wood Ct, West Jordan, UT 84081
4943 W Cherry Laurel Ln, West Jordan, UT 84081
479 Evesham Dr, Salt Lake City, UT 84107
500 Valley View Dr, Pleasant Grove, UT 84062
Professional information
Optimized Movable Ir Filter In Cameras
US Patent:
2012002, Feb 2, 2012
Filed:
Jul 29, 2010
Appl. No.:
12/846054
Inventors:
Philip Alan Bunker - Orem UT, US
Mark Nelson - West Jordan UT, US
Jeffrey B. Lancaster - Riverton UT, US
Todd Webb - Alpine UT, US
Ting Chia Hsu - Hsinchu, TW
Eva Tai - Hsinchu, TW
Mark Nelson - West Jordan UT, US
Jeffrey B. Lancaster - Riverton UT, US
Todd Webb - Alpine UT, US
Ting Chia Hsu - Hsinchu, TW
Eva Tai - Hsinchu, TW
Assignee:
LOGITECH EUROPE S.A. - Romanel-sur-Morges
International Classification:
H04N 5/33, H04N 7/18
US Classification:
348143, 348164, 348E0509, 348E07085
Abstract:
Embodiments of the present invention include a camera having two modes: a visible light imaging mode (day-mode) and an IR imaging mode (night-mode). In the visible light imaging mode, an IR filter is in line with the lens assembly. In the IR imaging mode, the IR filter is mechanically removed, and IR light is allowed to pass to the sensor. In one embodiment, in the IR imaging mode, IR lighting is provided by an IR LEDs on the camera to illuminate the scene. In one embodiment, the various components are chosen, balanced and optimized so that images captured using visible light and images captured using non-visible light are both in focus. In one embodiment, an algorithm determines when there sufficient visible light is present and when it is not, and thus determines when to switch the camera from one mode to another.