Ophthalmological device
AssigneeCanon Kabushiki Kaisha
InventorKazuhiro Matsumoto
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AssigneeCanon Kabushiki Kaisha
InventorKazuhiro Matsumoto
Estimating the term…
An ophthalmological device in which a liquid crystal element is controlled such that four liquid crystal element cells, with an eye fixation target at the center of the four cells, are set in a transmissive state, while the rest of the cells are set in a non-transmissive state. In this manner, an eye fixation target is shown. In particular, an opthalmological device in which, when a photographer presses an eye fixation target enhancing switch, the four cells at each of the upper right, lower right, lower left, and upper left side of the eye fixation target center are successively set in a transmissive and a non-transmissive state. As a result, the eye fixation target appears, to the subject, to rotate around the eye fixation target center. This rotation appearance attracts the attention of the subject, allowing him to easily find the eye fixation target, and properly view the eye fixation target within a short time.
An ophthalmological device, comprising:
An ophthalmological device, comprising:
An ophthalmological device, comprising:
An ophthalmological photographing device, comprising:
A device according to claim 10, further comprising a monitor device displaying an image of said subject's eye with the target pattern at least during operation of said operation device.
An opthalmological photographing device, comprising:
Dependencies are inferred from the claim text.