Title:
OPHTHALMOLOGIC IMAGING DEVICE AND CONTROL METHOD THEREOF
Document Type and Number:
Japanese Patent JP2019080904
Kind Code:
A
Abstract:
To acquire a tomographic image wider in a depth direction, in which folding is reduced.SOLUTION: An ophthalmologic imaging device includes: a detection unit for detecting an interference light by a return light from a subject irradiated with a measurement light and a reference light corresponding to the measurement light as an interference signal; a conversion unit for converting the detected interference signal; and an arithmetic processing unit for generating a tomographic image of the subject using the converted interference signal. The arithmetic processing unit generates the tomographic image using a component of a frequency higher than a Nyquist frequency of the conversion unit and a component of a frequency lower than a Nyquist frequency of the conversion unit, which are a plurality of components acquired from the converted interference signal.SELECTED DRAWING: Figure 3
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Inventors:
SAKAGAWA WATARU
INAO YASUHISA
INAO YASUHISA
Application Number:
JP2018147777A
Publication Date:
May 30, 2019
Filing Date:
August 06, 2018
Export Citation:
Assignee:
CANON KK
International Classes:
A61B3/10
Domestic Patent References:
| JP2015114284A | 2015-06-22 | |||
| JP2014176566A | 2014-09-25 | |||
| JP2010014514A | 2010-01-21 | |||
| JP2015208574A | 2015-11-24 |
Attorney, Agent or Firm:
Takuma Abe
Sogo Kuroiwa
Sogo Kuroiwa