Simon Altmejd,Annette Robichaud,ILAN Benjamin Urovitch,Camilo Guevara Garzon
申请号：
US16592036
公开号：
US20200107752A1
申请日:
2019.10.03
申请国别(地区):
US
年份:
2020
代理人:
摘要：
The present disclosure concerns a plethysmograph. The plethysmograph comprises a housing defining a test cavity configured to enclose a test subject. The plethysmograph further comprises an optical filter providing a spectrally restricted optical access to the test cavity from an exterior of the housing, the optical filter being configured to at least partially transmit light in a transmission band ranging from about 560 nm to about 750 nm； and to at least partially block light in a blocking band ranging from about 380 nm to about 560 nm.
