Ophthalmologic imaging apparatus
First Claim
1. An ophthalmologic imaging apparatus, comprising:
- a first optical system comprising a first focus lens movable along an optical axis of a first optical path and a diopter correction lens insertable into and removable from the first optical path, and configured to guide light from a subject'"'"'s eye to a first light receiving element;
a first driver configured to move the first focus lens;
a first focus controller configured to execute mutually different focus control of the first driver in a removed state in which the diopter correction lens is removed from the first optical path and in an inserted state in which the diopter correction lens is inserted into the first optical path;
a second optical system comprising a second focus lens movable along an optical axis of a second optical path, and configured to guide the light from the subject'"'"'s eye to a second light receiving element or an eyepiece;
a second driver configured to move the second focus lens; and
a second focus controller configured to determine a position of the second focus lens by executing focus control of the second driver and move the second focus lens to a focus position determined,wherein, in the inserted state, the first focus controller determines a position of the first focus lens based on the position of the second focus lens determined by the second focus controller and moves the first focus lens to a focus position determined.
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Accused Products
Abstract
An ophthalmologic imaging apparatus that includes a first optical system, a first driver, and a first focus controller. The first optical system includes a first focus lens and a diopter correction lens, and guides light from a subject'"'"'s eye to a first light receiving element. The first focus lens is movable along the optical axis of a first optical path. The diopter correction lens is insertable into and removable from the first optical path. The first driver moves the first focus lens. The first focus controller executes mutually different focus control of the first driver in a removed state in which the first diopter correction lens is removed from the first optical path and in an inserted state in which the diopter correction lens is inserted into the first optical path.
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Citations
19 Claims
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1. An ophthalmologic imaging apparatus, comprising:
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a first optical system comprising a first focus lens movable along an optical axis of a first optical path and a diopter correction lens insertable into and removable from the first optical path, and configured to guide light from a subject'"'"'s eye to a first light receiving element; a first driver configured to move the first focus lens; a first focus controller configured to execute mutually different focus control of the first driver in a removed state in which the diopter correction lens is removed from the first optical path and in an inserted state in which the diopter correction lens is inserted into the first optical path; a second optical system comprising a second focus lens movable along an optical axis of a second optical path, and configured to guide the light from the subject'"'"'s eye to a second light receiving element or an eyepiece; a second driver configured to move the second focus lens; and a second focus controller configured to determine a position of the second focus lens by executing focus control of the second driver and move the second focus lens to a focus position determined, wherein, in the inserted state, the first focus controller determines a position of the first focus lens based on the position of the second focus lens determined by the second focus controller and moves the first focus lens to a focus position determined. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An ophthalmologic imaging apparatus, comprising:
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a first optical system comprising a first focus lens movable along an optical axis of a first optical path and a diopter correction lens insertable into and removable from the first optical path, and configured to guide light from a subject'"'"'s eye to a first light receiving element; a first driver configured to move the first focus lens; and a first focus controller configured to execute mutually different focus control of the first driver in a removed state in which the diopter correction lens is removed from the first optical path and in an inserted state in which the diopter correction lens is inserted into the first optical path; an illumination optical system configured to project an illumination light beam onto the subject'"'"'s eye via a third optical path coupled with the first optical path between the subject'"'"'s eye and the diopter correction lens; a focus indicator projection optical system configured to project a focus indicator onto the subject'"'"'s eye via the third optical path; and a third driver configured to move the focus indicator projection optical system along an optical axis of the third optical path, wherein the first light receiving element receives returning light of the focus indicator from the subject'"'"'s eye that has passed through the first focus lens, and the first focus controller, in the removed state, determines the position of the first focus lens by controlling the third driver based on a position of an image of the focus indicator acquired by the first light receiving element, and moves the first focus lens to a focus position determined. - View Dependent Claims (17, 18, 19)
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Specification