System for the characterization of emissive elements
Kenji Sasaki, West Linn, OR (US); Kurt Ulmer, Vancouver, WA (US); Paul J. Schuele, Washougal, WA (US); and Jong-Jan Lee, Camas, WA (US)
Assigned to eLux, Inc., Vancouver, WA (US)
Filed by eLux Inc., Vancouver, WA (US)
Filed on Feb. 3, 2022, as Appl. No. 17/591,736.
Application 17/591,736 is a division of application No. 16/875,995, filed on May 16, 2020, granted, now 11,315,910.
Application 16/875,995 is a continuation of application No. 16/875,994, filed on May 16, 2020, granted, now 11,296,059.
Application 16/875,994 is a continuation in part of application No. 16/846,493, filed on Apr. 13, 2020, granted, now 11,251,166.
Application 16/846,493 is a continuation in part of application No. 16/727,186, filed on Dec. 26, 2019, granted, now 11,145,787.
Application 16/727,186 is a continuation of application No. 16/406,196, filed on May 8, 2019, granted, now 10,643,981.
Application 16/406,196 is a continuation in part of application No. 16/406,080, filed on May 8, 2019, granted, now 10,804,426.
Application 16/406,080 is a continuation in part of application No. 16/125,671, filed on Sep. 8, 2018, granted, now 10,516,084, issued on Dec. 24, 2019.
Application 16/406,080 is a continuation in part of application No. 17/591,736.
Application 17/591,736 is a continuation in part of application No. 15/838,536, filed on Dec. 12, 2017, granted, now 10,242,977, issued on Mar. 26, 2019.
Application 15/838,536 is a continuation in part of application No. 15/722,037, filed on Oct. 2, 2017, granted, now 10,543,486, issued on Jan. 28, 2020.
Application 15/722,037 is a continuation in part of application No. 15/691,976, filed on Aug. 31, 2017, granted, now 10,535,640, issued on Jan. 14, 2020.
Application 15/691,976 is a continuation in part of application No. 15/440,735, filed on Feb. 23, 2017, granted, now 10,381,335, issued on Aug. 13, 2019.
Application 15/440,735 is a continuation in part of application No. 15/416,882, filed on Jan. 26, 2017, granted, now 10,446,728, issued on Nov. 15, 2019.
Application 15/413,053 is a continuation in part of application No. 15/412,731, filed on Jan. 23, 2017, granted, now 10,418,527, issued on Sep. 17, 2019.
Application 15/416,882 is a continuation in part of application No. 15/413,053, filed on Jan. 23, 2017, granted, now 10,520,769, issued on Dec. 31, 2019.
Application 15/412,731 is a continuation in part of application No. 15/410,195, filed on Jan. 19, 2017, granted, now 10,236,279, issued on Mar. 19, 2019.
Application 15/410,195 is a continuation in part of application No. 15/410,001, filed on Jan. 19, 2017, granted, now 9,825,202, issued on Nov. 21, 2017.
Application 15/410,001 is a continuation in part of application No. 15/266,796, filed on Sep. 15, 2016, granted, now 9,917,226, issued on Mar. 13, 2018.
Application 15/266,796 is a continuation in part of application No. 15/221,571, filed on Jul. 27, 2016, granted, now 9,755,110, issued on Sep. 5, 2017.
Application 15/221,571 is a continuation in part of application No. 15/197,266, filed on Jun. 29, 2016, granted, now 10,249,599, issued on Apr. 2, 2019.
Application 15/197,266 is a continuation in part of application No. 15/190,813, filed on Jun. 23, 2016, granted, now 9,892,944, issued on Feb. 13, 2018.
Application 15/190,813 is a continuation in part of application No. 15/158,556, filed on May 18, 2016, granted, now 9,985,190, issued on May 29, 2018.
Application 15/158,556 is a continuation in part of application No. 14/749,569, filed on Jun. 24, 2015, granted, now 9,722,145, issued on Aug. 1, 2017.
Application 15/266,796 is a continuation in part of application No. 14/680,618, filed on Apr. 7, 2015, granted, now 10,115,862, issued on Oct. 30, 2018.
Application 14/680,618 is a continuation in part of application No. 14/530,230, filed on Oct. 31, 2014, abandoned.
Prior Publication US 2022/0157791 A1, May 19, 2022
1. A system for characterizing a micro light emitting diode (microLED) suspension comprising;
a transparent container having a vertical center axis;
a plurality of light emitting devices having a predetermined output light intensity, directed towards the center axis of the container and spaced a first predetermined distance from each other along a vertical first axis parallel to the center axis;
a plurality of light detection devices spaced the first predetermined distance from each other along a vertical second axis parallel to the center axis, with each light detection device having an input directed towards a corresponding light emitting device output and an output to provide an electrical optical density signal responsive to measured light intensity;
and, a monitoring device having an input to accept the optical density signals, the monitoring device comparing the intensities of light associated with the optical density signals and supplying an output responsive to the comparison;
wherein the container includes a suspension of microLEDs;
and, wherein the monitoring device supplies an output selected from the group consisting of a microLED homogeneity measurement and a calculation of a microLED count per unit volume of suspension.
