Invention Application
- Patent Title: DEVICES AND METHODS FOR ASSESSMENT OF SURFACES
- Patent Title (中): 用于评估表面的装置和方法
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Application No.: US15039526Application Date: 2014-11-20
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Publication No.: US20160377416A1Publication Date: 2016-12-29
- Inventor: Thomas J. Reid , Elaine M. Yorkgitis , Joseph A. Hoffman
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- International Application: PCT/US14/66614 WO 20141120
- Main IPC: G01B11/25
- IPC: G01B11/25 ; G01N21/88

Abstract:
Devices and methods for assessing topography of a reflective surface are provided. The methods comprise directing an arrayed light source onto the reflective surface to produce a reflected light pattern; and observing the reflected light pattern without the use of a computer to detect the presence of one or more topographical features of the reflective surface. The devices comprise an arrayed light source and a portable support operatively connected to the arrayed light source by an adjusting element. The presence of one or more topographical features of the reflective surface to are noted by an observer without the use of a computer. Defects may be discerned by the presence of a swirl in a reflected light pattern.
Public/Granted literature
- US1709995A Mattress Public/Granted day:1929-04-23
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