US 12,281,978 B2
Light pipe for spectroscopy
Curtis R. Hruska, Cloverdale, CA (US); Peng Zou, Ridgefield, CT (US); Benjamin F. Catching, Santa Rosa, CA (US); Marc K. Von Gunten, Novato, CA (US); and Valton Smith, Novato, CA (US)
Assigned to VIAVI Solutions Inc., Chandler, AZ (US)
Filed by VIAVI Solutions Inc., Chandler, AZ (US)
Filed on Sep. 1, 2022, as Appl. No. 17/929,113.
Application 17/929,113 is a division of application No. 16/946,309, filed on Jun. 16, 2020, granted, now 11,442,004.
Application 16/946,309 is a continuation of application No. 15/477,753, filed on Apr. 3, 2017, granted, now 10,690,590, issued on Jun. 23, 2020.
Claims priority of provisional application 62/318,428, filed on Apr. 5, 2016.
Prior Publication US 2022/0412880 A1, Dec. 29, 2022
Int. Cl. G01N 21/25 (2006.01); G01J 3/02 (2006.01); G01J 3/06 (2006.01); G01J 3/42 (2006.01); G01N 21/01 (2006.01); G01N 21/03 (2006.01); G01N 21/05 (2006.01); G01N 21/63 (2006.01); G01N 21/85 (2006.01); G02B 6/10 (2006.01); G02B 27/09 (2006.01)
CPC G01N 21/255 (2013.01) [G01J 3/02 (2013.01); G01J 3/0202 (2013.01); G01J 3/0205 (2013.01); G01J 3/0272 (2013.01); G01J 3/0291 (2013.01); G01J 3/06 (2013.01); G01J 3/42 (2013.01); G01N 21/01 (2013.01); G01N 21/03 (2013.01); G01N 21/031 (2013.01); G01N 21/25 (2013.01); G01N 21/63 (2013.01); G02B 6/10 (2013.01); G02B 27/0994 (2013.01); G01J 2003/425 (2013.01); G01N 2021/0118 (2013.01); G01N 21/05 (2013.01); G01N 21/8507 (2013.01); G01N 2021/8514 (2013.01); G01N 2201/024 (2013.01); G01N 2201/064 (2013.01); G01N 2201/08 (2013.01); G01N 2201/0813 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
a light pipe;
a sample pipe configured to direct a sample through a cavity of the light pipe; and
a spectrometer configured to perform a spectroscopic measurement when the sample is directed through the sample pipe and aligned with the spectrometer,
wherein the light pipe is configured to enclose a portion of the spectrometer in the cavity.