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.:

US 7252381 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 07, 2007

Filed:

Aug. 25, 2004
Applicants:

Clive Harrold Thomas Burrows, Hazlemere, GB;

Kelvyn Church, Reading, GB;

Stephen Church, Farnborough, GB;

David Ernest Lane Freeman, South Croydon, GB;

James Robert Arnold Matthews, Bracknell, GB;

Inventors:

Clive Harrold Thomas Burrows, Hazlemere, GB;

Kelvyn Church, Reading, GB;

Stephen Church, Farnborough, GB;

David Ernest Lane Freeman, South Croydon, GB;

James Robert Arnold Matthews, Bracknell, GB;

Assignee:

Keeler Limited, Windsor, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 3/14 (2006.01);
U.S. Cl.
CPC ...
Abstract

An ophthalmoscope has illuminating optics () for projecting a beam of light into an eye under examination and imaging optics () for creating an image of said eye for viewing by a user. The imaging optics comprises an objective lens system () and an eye piece lens system (). Two corneal reflex stops (and) are positioned one on either side of the corneal image formed by the objective lens system. The stops block reflections from the cornea of the eye under examination over a range of distances of the ophthalmoscope from the eye. The use of the two corneal reflex stops results in the precise positioning of the ophthalmoscope relative to the eye under examination not being critical to the blocking of the corneal reflex.


Find Patent Forward Citations

Burrows, Clive Harrold Thomas. (2007). Ophthamoscope (U.S. Patent No. 7252381). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7252381

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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