F-number matching method in light field microscopy using an elastic micro lens array.
In light field microscopy (LFM), the F-number of the micro lens array (MLA) should be matched with the image-side F-number of the objective lens to utilize full resolution of an image sensor. We propose a new F-number matching method that can be applied to multiple objective lenses by using an elastic MLA. We fabricate an elastic MLA with polydimethylsiloxane (PDMS) using a micro contact printing method and address the strain for the F-number variation. The strain response is analyzed, and the LFM system with the elastic MLA is demonstrated. Our proposed system can increase the F-number up to 27.3% and can be applied to multiple objective lenses.
Jonghyun
J
Kim
Youngmo
Y
Jeong
Hyungjin
H
Kim
Chang-Kun
CK
Lee
Byeongmoon
B
Lee
Jisoo
J
Hong
Youngmin
Y
Kim
Yongtaek
Y
Hong
Sin-Doo
SD
Lee
Byoungho
B
Lee