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Anti-Reflective Launch Optics in Laser-Based Photoplethysmography
专利权人:
Jonas Alexander Pologe
发明人:
Jonas Alexander Pologe,Theodore Philip Delianides
申请号:
US13107004
公开号:
US20120289798A1
申请日:
2011.05.13
申请国别(地区):
US
年份:
2012
代理人:
摘要:
An embodiment of a light launching portion of a photoplethysmographic device having a laser (20) light source and a light guide (40). The coupled end of the light guide (40) includes an anti-reflection coating (30a) to prevent or minimize the back reflection of light emitted by the laser (20). This minimizes the extent to which back reflected light can re-enter the laser and adversely alter the optical output properties of the laser (20) and additionally minimizes the associated light loss thus helping to maximize the optical coupling efficiency. Other embodiments are described and shown.
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