Magnifier

Patent 5196964 Issued on March 23, 1993. Estimated Expiration Date:

January 7, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

1145959

1396607

1804105

2087081

Lens storage device
Patent #: 4205747
Issued on: 06/03/1980
Inventor: Gilliam , et al.

Flashlight magnifier attachment
Patent #: 4225907
Issued on: 09/30/1980
Inventor: Erdell

Headband with optical device adjustably coupled thereto
Patent #: 4681413
Issued on: 07/21/1987
Inventor: Schmidt , et al.

Binocular indirect ophthalmoscope
Patent #: 4684227
Issued on: 08/04/1987
Inventor: Schmidt , et al.

Hand-held magnifier apparatus Patent #: 4859032
Issued on: 08/22/1989
Inventor: Feinbloom

Inventors

Assignee

Application

No. 637908 filed on 01/07/1991

US Classes:

359/800, Illumination through lens359/803, Hand held359/812, With additional handle362/109, WITH IMPLEMENT OR HAND HELD HOLDER THEREFOR362/157SELF POWERED LAMP

Examiners

Primary: Ben, Loha

Attorney, Agent or Firm

Kaplan; Blum

International Class

G02B 027/02

Foreign Application Priority Data

1990-01-09 DE

Abstract

A magnifier for observing a surface includes a housing, a detachable window attachment coupled to a first end of the housing and an eyepiece coupled to a second end of the housing. A light source attachment is coupled to the housing for supplying light to the hollow interior of the housing. The light source attachment and housing each have major axes which extend in different directions and form an angle between approximately 110° and 120°. Photoconductive material serves as a light guide for directing the light from the light source attachment to the window attachment.