Background reduction apparatuses and methods of ocular surface interferometry (OSI) employing polarization for imaging, processing, and/or displaying an ocular tear film
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 19, 2018
Issued Date -
N/A
app pub date -
May 8, 2017
filing date -
Apr 1, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
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).
First Claim
Other Claims data not available
Family
International Classification(s)
- 2017 Application Filing Year
- G06T Class
- 12413 Applications Filed
- 9020 Patents Issued To-Date
- 72.67 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 7 Citation Count
- G06T Class
- 22.86 % this patent is cited more than
- 7 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Dec 19, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 19, 2029 |
