Computer screen magnifier

• US 4,958,907 A
• Filed: 01/17/1989
• Issued: 09/25/1990
• Est. Priority Date: 01/17/1989
• Status: Expired due to Fees

• Current Assignee: Dale G. Davis
• Original Assignee: Dale G. Davis
• Inventors: Davis, Dale G.
• Primary Examiner(s): Arnold, Bruce Y.
• Assistant Examiner(s): Kachmarik, Ronald M.
• Application Number:
  US07/297,038
• Time in Patent Office: 616 Days
• Field of Search: 350/241, 350/243, 350/245, 358/250, 248/316.1, 248/316.5, 248/316.7, 248/298, 248/918
• US Class Current: 359/809
• CPC Class Codes: G02B 25/002 Magnifying glasses
• CPC Class Codes: G02B 3/08 with discontinuous faces, e.g. Fresnel lens diffractive Fresnel lenses G02B5/1876
• CPC Class Codes: Y10S 248/918 Ancillary device support associated with a video display screen

Abstract

A holder for adjustably positioning a flatsheet magnifier proximate a visual display terminal comprises a mounting for retaining the magnifier and a support for extensibly positioning the mounting in a predetermined, spaced-apart relationship with the terminal. Disclosed are particular arrangements of mounts and supports including slidable members, telescopic legs and pivoting, scissor-action legs, all of which provide for the positioning of a magnifier proximate a display screen.

Claims

1. A holder for adjustable positioning a flat sheet magnifier proximate a video display terminal comprising:

mounting means for retaining said magnifier, said mounting means including a spring biased clamping device for securely holding said magnifier thereto; and

means for supporting and extensibly positioning said mounting means in a predetermined, spaced-apart relationship with said terminal, said means including at least one support arm having said clamping device disposed at one end thereof, and a flat, rectangular retaining block securedly affixed to said terminal.

2. A holder as in claim 1, fabricated from a material selected from the group consisting essentially of:

synthetic polymeric materials, metals, wood and combinations thereof.

3. A holder as defined in claim 1, wherein said flat, retaining block defines at least one hole for slidably receiving the other end of said at least one support arm therein for extensibly positioning said magnifier linearly along an axis coextensive with said arm.

4. A holder as defined in claim 3, wherein said hole is defined by a downwardly depending U-shaped channel formed on an upper surface of said flat retaining block and positioned on either side f a centerline thereof, said centerline being parallel to said axis.