Incoherent fluorescence digital holographic microscopy using transmission liquid crystal lens
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United States of America Patent
Stats
-
Mar 12, 2019
Grant Date -
May 24, 2018
app pub date -
Jan 3, 2018
filing date -
Oct 3, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A new optical arrangement that creates high efficiency, high quality Fresnel Incoherent Correlation Holography (FINCH) holograms using transmission liquid crystal GRIN (TLCGRIN) diffractive lenses has been invented. This is in contrast to the universal practice in the field of using a reflective spatial light modulator (SLM) to separate sample and reference beams. Polarization sensitive TLCGRIN lenses enable a straight optical path, have 95% transmission efficiency, are analog devices without pixels and are free of many limitations of reflective SLM devices. An additional advantage is that they create an incoherent holographic system that is achromatic over a wide bandwidth. Two spherical beams created by the combination of a glass and a polarization sensitive TLCGRIN lenses interfere and a hologram is recorded by a digital camera. FINCH configurations which increase signal to noise ratios and imaging speed are also described.
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International Classification(s)
- 2018 Application Filing Year
- G02B Class
- 11617 Applications Filed
- 8698 Patents Issued To-Date
- 74.88 % Issued To-Date
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- 0 Citation Count
- G02B Class
- 0 % this patent is cited more than
- 6 Age
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