US 11,656,178 B2
UV-VIS spectroscopy instrument and methods for color appearance and difference measurement
Michael T. Scardina, Woodbridge, VA (US); Tod L. Kerr, Reston, VA (US); Matthew T. Falanga, Washington, DC (US); and Miguel A. Marcos, Falls Church, VA (US)
Assigned to Hunter Associates Laboratory, Inc., Reston, VA (US)
Filed by Hunter Associates Laboratory, Inc., Reston, VA (US)
Filed on Mar. 16, 2021, as Appl. No. 17/203,113.
Application 17/203,113 is a continuation of application No. 16/378,620, filed on Apr. 9, 2019, granted, now 11,002,676.
Claims priority of provisional application 62/654,831, filed on Apr. 9, 2018.
Prior Publication US 2021/0208069 A1, Jul. 8, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. G01N 21/57 (2006.01); G01N 21/55 (2014.01); G01N 21/33 (2006.01); G01N 21/47 (2006.01)
CPC G01N 21/57 (2013.01) [G01N 21/33 (2013.01); G01N 21/55 (2013.01); G01N 2021/4757 (2013.01); G01N 2021/555 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A spectroscopy instrument, comprising:
in a unitary construction,
a specular gloss-measuring subsystem configured to measure specular gloss;
a reflectance factor-measuring subsystem configured to measure relative reflectance factor; and
an imaging subsystem configured to capture one or more color appearance images.