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Background reduction apparatuses and methods of ocular surface interferometry (OSI) employing polarization for imaging, processing, and/or displaying an ocular tear film
专利权人:
TearScience, Inc.
发明人:
Korb Donald R.,Weber William L.,Chinnock Randal B.,Gravely Benjamin T.,Grenon Stephen M.
申请号:
US201715589146
公开号:
US9999346(B2)
申请日:
2017.05.08
申请国别(地区):
美国
年份:
2018
代理人:
Withrow & Terranova, PLLC
摘要:
Background reduction apparatuses and methods of Ocular Surface Interferometry (OSI) employing polarization are disclosed for measuring a tear film layer thickness (TFLT) of the ocular tear film, including lipid layer thickness (LLT) and/or aqueous layer thickness (ALT) and can be used to evaluate and potentially diagnosis dry eye syndrome (DES). In certain disclosed embodiments, a multi-wavelength light source can be controlled to illuminate the ocular tear film. Light emitted from the multi-wavelength light source undergoes optical wave interference interactions in the tear film. An imaging device can be focused on the lipid layer of the tear film to capture optical wave interference interactions of specularly reflected light from the tear film combined with a background signal(s) in at least one image. The at least one image can be processed and analyzed to measure a tear film layer thickness (TFLT), including lipid layer thickness (LLT) and/or aqueous layer thickness (ALT).
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/
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