The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 31, 2015
Filed:
May. 15, 2006
Norihiko Yokoi, Kyoto, JP;
Shigeru Kinoshita, Osaka, JP;
Takayoshi Suzuki, Hamamatsu, JP;
Yutaka Mizukusa, Chofu, JP;
Osamu Yamamoto, Osaka, JP;
Norihiko Yokoi, Kyoto, JP;
Shigeru Kinoshita, Osaka, JP;
Takayoshi Suzuki, Hamamatsu, JP;
Yutaka Mizukusa, Chofu, JP;
Osamu Yamamoto, Osaka, JP;
Other;
Kowa Company Ltd., , JP;
Abstract
In an ophthalmic measuring method, a traceable marker in particulate form is administered to the lachrymal fluid of a subject's eye, and the lachrymal fluid is irradiated with illuminating light. Images of the illuminated lachrymal fluid are electronically captured respectively at different times. Two images from among the captured images are selected, with each of the two selected images displaying the traceable marker. A characteristic point of each of the two selected images is specified. A movement speed of the traceable marker is measured based on positions thereof in the two selected images and on a time difference from specifying the characteristic point of one of the two selected images to specifying the characteristic point of the other of the two selected images. The measured movement speed of the traceable marker is outputted as the movement speed of the lachrymal fluid of the subject's eye.