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:
May. 06, 1997
Filed:
Nov. 13, 1995
Masanobu Kaneko, Yokohama, JP;
Nikon Corporation, Tokyo, JP;
Abstract
The invention provides an ophthalmological illumination device which produces a plurality of illumination types using a single light source. The device illuminates the examined eye without causing damage to the maculalutea of the retina. The device illuminates the examined eye through an object lens and includes a light source means for supplying illumination light and a light separating means for separating the illumination light. The light separating means separates the light into a first illumination light which is incident on the object lens in a direction parallel with the optical axis of the object lens and a second illumination light. A movable inclining means causes the second illumination light to be incident on the object lens in a direction parallel with the optical axis. The angle of the second illumination light incident on the examined eye changes relative to the optical axis in accordance with the movement of the movable inclining means.