US 11,656,119 B2
High density optical measurement systems with minimal number of light sources
Ryan Field, Culver City, CA (US); Husam Katnani, Braintree, MA (US); and Katherine Perdue, Los Angeles, CA (US)
Assigned to HI LLC, Los Angeles, CA (US)
Filed by HI LLC, Los Angeles, CA (US)
Filed on Oct. 22, 2021, as Appl. No. 17/508,325.
Application 17/508,325 is a continuation of application No. 17/202,641, filed on Mar. 16, 2021, granted, now 11,187,575.
Claims priority of provisional application 63/052,609, filed on Jul. 16, 2020.
Claims priority of provisional application 62/992,516, filed on Mar. 20, 2020.
Prior Publication US 2022/0042843 A1, Feb. 10, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G01J 1/02 (2006.01); G01J 1/04 (2006.01)
CPC G01J 1/0219 (2013.01) [G01J 1/0238 (2013.01); G01J 1/0422 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An optical measurement system comprising:
a wearable assembly configured to be worn by a user and comprising a plurality of modules each configured to fit within a different slot of a plurality of slots of the wearable assembly, the plurality of slots each surrounded by a wall, the plurality of modules including a first module that comprises:
a first light source and a second light source each configured to emit light directed at a target, and
a first set of detectors configured to detect arrival times for photons of the light emitted by the first and second light sources after the light emitted by the first and second light sources is scattered by the target;
wherein
the first light source is configured to emit light having a first wavelength,
the second light source is configured to emit light having a second wavelength different than the first wavelength,
a ratio of a total number of the detectors of the first module to a total number of the light sources of the first module is at least two to one,
the walls that surround the plurality of slots physically separate the first module from a second module included in the plurality of modules, and
a positioning of the first and second modules in the slots of the wearable assembly is configured to cause one or more detectors of the first set of detectors to also detect arrival times for photons of light emitted by a third light source included in the second module.