Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
IMAGING DEVICE, AND IMAGING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/166834
Kind Code:
A1
Abstract:
Provided is an imaging device which can achieve both angular resolution and spatial resolution or switch between the two resolutions with a simple configuration. The imaging device includes an optical sensor having a plurality of sensor elements, a main lens which guides light from an object to the optical sensor, and a micro-lens array disposed between the optical sensor and the main lens. The micro-lens array has a three-layer structure of: a first electrode that is transparent with respect to visible light; a second electrode that has a plurality of openings, faces the first electrode, and is transparent with respect to visible light; and a dielectric polymer disposed between the first electrode and the second electrode. Upon the application of voltage, a lens is formed in the openings, and the imaging device selectively operates in a first mode with favorable angular resolution and a second mode with favorable spatial resolution, depending on the level of the applied voltage.

Inventors:
YAMADA YASUMI (JP)
KOIKE TAKAFUMI (JP)
Application Number:
PCT/JP2021/005462
Publication Date:
August 26, 2021
Filing Date:
February 15, 2021
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NITTO DENKO CORP (JP)
UNIV HOSEI (JP)
International Classes:
H04N5/225; G02B1/04; G02B3/00; G02B3/14; G03B15/00
Foreign References:
US20140354777A12014-12-04
JP2013054208A2013-03-21
CN103091928A2013-05-08
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
Download PDF: