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:
Jan. 29, 1985
Filed:
Mar. 29, 1982
Takeshi Machida, Tokyo, JP;
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A contact lens holder for use in a lens meter comprises an upper cover and a casing which are hinged together and which have first and second axially aligned openings, respectively, for passage therethrough a beam of light from the lens meter. The casing has an annular wall defining the second opening and an annular projection surrounding the annular wall in spaced relation. A contact lens is placed on the annular wall with a concave side of the lens facing the second opening and a peripheral edge of the lens held against an inner peripheral surface of the annular projection. Thus, the contact lens is prevented from being wobbled laterally of the annular projection. The upper cover has a plurality of angularly spaced resilient tongues attached thereto as cantilevers and extending radially inwardly toward the center of the upper cover. When the upper cover is closed over the casing, the distal or free end portions of the resilient tongues are resiliently pressed against a convex surface of the lens to hold the latter against wobbling movement axially of the first and second openings. The contact lens can thus be held securely in position in the contact lens holder to allow the lens meter to make measurements with precision.