Fundus imaging apparatus and control method

Patent metadata

Field	Value
Publication number	US-8960908-B2
Application number	US-201314057220-A
Country	US
Kind code	B2
Filing date	Oct 18, 2013
Priority date	Oct 26, 2012
Publication date	Feb 24, 2015
Grant date	Feb 24, 2015

Abstract

A fundus imaging apparatus selects a focal position detection method in accordance with whether a diopter correction lens is inserted in an optical path of an imaging optical system that includes an imaging unit; and detects a focal position based on a signal from the imaging unit according to the selected focal position detection method.

First claim

What is claimed is:

1. A fundus imaging apparatus comprising:
an illumination optical system configured to project illumination light on a fundus of an eye to be examined;
an imaging optical system configured to guide reflected light from the fundus to an imaging unit;
a driveable focus lens which is provided in an optical path of said imaging optical system and which is configured to focus the reflected light onto the imaging unit;
a focusing unit configured to detect a foc…

Assignees

• Canon Kk

Inventors

• Saito Yohei
• Aikawa Satoshi
• Ohban Hideyuki
• Nakano Yoshitaka

Classifications

• A61B3/12 Primary

  Human Necessities · mapped topic