US 9,810,633 B2
Classification of surface features using fluoresence
Joachim Walter Ahner, Livermore, CA (US); David M. Tung, Livermore, CA (US); Samuel Kah Hean Wong, Johor Bahru (MY); Henry Luis Lott, Fremont, CA (US); Stephen Keith McLaurin, Sunnyvale, CA (US); Maissarath Nassirou, Fremont, CA (US); and Florin Zavaliche, San Ramon, CA (US)
Assigned to Seagate Technology LLC, Cupertino, CA (US)
Filed by Seagate Technology LLC, Cupertino, CA (US)
Filed on Feb. 18, 2016, as Appl. No. 15/47,563.
Application 15/047,563 is a continuation of application No. 14/032,187, filed on Sep. 19, 2013, granted, now 9,297,759.
Claims priority of provisional application 61/710,666, filed on Oct. 5, 2012.
Prior Publication US 2016/0169802 A1, Jun. 16, 2016
Int. Cl. G01N 21/64 (2006.01); G01N 21/88 (2006.01); G01N 21/95 (2006.01); G01N 21/63 (2006.01); G01N 21/47 (2006.01); G01N 21/94 (2006.01)
CPC G01N 21/6456 (2013.01) [G01N 21/47 (2013.01); G01N 21/63 (2013.01); G01N 21/64 (2013.01); G01N 21/8851 (2013.01); G01N 21/94 (2013.01); G01N 21/95 (2013.01); G01N 21/9501 (2013.01); G01N 21/9506 (2013.01); G01N 2021/8864 (2013.01); G01N 2201/0683 (2013.01); G01N 2201/06153 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a photon emitter configured to simultaneously emit photons onto an entire surface of an article in a photon pulse; and
a photon detector array, configured to receive both scattered photons and fluoresced photons from surface features of the article, wherein
the photon detector array is configured to provide information for classifying the surface features corresponding to the scattered photons and the fluoresced photons received by the photon detector array during the photon pulse and subsequent to the photon pulse.