Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With auxiliary lenses movable in and out of the optical path
Reexamination Certificate
2000-02-25
2001-06-12
Mai, Huy (Department: 2873)
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
With auxiliary lenses movable in and out of the optical path
C351S041000
Reexamination Certificate
active
06244705
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates generally to eyeglasses and, more particularly, to auxiliary eyeglasses for use with primary eyeglasses for temporary supplemental vision correction.
BACKGROUND OF THE INVENTION
Prescription eyeglasses utilize a wide variety of lenses with several types of correction. Among the most common corrective lenses are bifocals, which have a full field lens with a zone in the bottom portion of each lens that corrects close range vision for reading. Depending on the needs of the wearer, the upper portion or zone of a bifocal lens may or may not correct for better long-range or distance vision. Unfortunately, for most bifocal wearers, neither the short-range correction nor the long-range correction of their glasses corrects sufficiently for the mid-range of vision. It is the mid-range of vision that is utilized when viewing a computer screen, piano music and many other tasks performed at about arm's length.
In trifocal lenses and in the more recently developed “progressive” lenses, there is a narrow zone that corrects mid-range vision. However, a computer user wearing such lenses must tilt his head up and down until the mid-range portions of his lenses are aligned with the computer screen. This corrects the user's vision, but often does so at the expense of the user's comfort and good body mechanics.
There is a need for auxiliary eyeglasses for temporary mid-range correction, which can be worn with the conventional lenses and only when needed, such as while using a computer or playing a piano. This eliminates the constant head tilting required when using the conventional lenses alone. There is a need for such auxiliary eyeglasses that provide a wide zone of correction, preferably across the full width of the lenses. There is also a need for such auxiliary eyeglasses that can be worn with the user's primary corrective eyeglasses. Further, there is a need for such auxiliary eyeglasses that are sturdy and inexpensive. Further still, there is a need for such auxiliary eyeglasses that are simple to attach to and remove from the primary eyeglasses in a manner that reduces the likelihood of damage to the primary lenses.
SUMMARY OF THE INVENTION
The present invention comprises auxiliary eyeglasses for use with primary eyeglasses, wherein the primary eyeglasses comprise a pair of lenses. The auxiliary eyeglasses comprise a pair of corrective, partial lenses, each having a nasal side. A bridge connects the nasal sides of the upper partial lenses to each other. At least one tab extends outwardly from the partial lenses, and the tab is sized and positioned to rest non-engagingly on the primary eyeglasses when the lenses of the auxiliary eyeglasses are positioned behind the lenses of the primary eyeglasses.
Still further, the present invention comprises an eyeglass assembly. The assembly includes a pair of primary eyeglasses and a pair of auxiliary eyeglasses. The primary eyeglasses comprise a pair of full, corrective lenses. The auxiliary eyeglasses comprise a pair of corrective, upper partial lenses, each having a nasal side. A bridge connects the nasal sides of the upper partial lenses to each other. At least one tab extends outwardly from the upper partial lenses, and the tab is sized and positioned to be supported by the primary eyeglasses when the lenses of the auxiliary eyeglasses are positioned behind the lenses of the primary eyeglasses.
REFERENCES:
patent: 0709874 (1902-09-01), Cohen
patent: 2901752 (1959-09-01), Granger
patent: 4163607 (1979-08-01), Nannini
patent: 4659196 (1987-04-01), Gazeley
patent: 5007727 (1991-04-01), Kahaney et al.
patent: 5056906 (1991-10-01), Akiyoshi
patent: 5118178 (1992-06-01), Tuckman
patent: 5416537 (1995-05-01), Sadler
patent: 5428407 (1995-06-01), Sheffield
patent: 5493348 (1996-02-01), Herald, Jr. et al.
patent: 5568207 (1996-10-01), Chao
patent: 5598232 (1997-01-01), Pronesti
patent: 5608470 (1997-03-01), Sheffield
patent: 5642177 (1997-06-01), Nishioka
patent: 5694192 (1997-12-01), Lucki et al.
patent: 5696571 (1997-12-01), Spencer et al.
patent: 5710614 (1998-01-01), Cereda
patent: 5724118 (1998-03-01), Krebs
patent: 5737054 (1998-04-01), Chao
patent: 5774200 (1998-06-01), Markey
patent: 5790230 (1998-08-01), Sved
patent: 5801804 (1998-09-01), Pennise
patent: 5867244 (1999-02-01), Martin
patent: 6027214 (2000-02-01), Graham
patent: 58-5714 (1983-01-01), None
Excerpt from 1997 Brochure by Vicron Optical of Glenview, IL, showing “Slip-In Myds” (3 pages).
Pages from shades.com website showing “Compu-Clip” half-eye glasses (2 pages) published prior to Jun. 28, 1999.
Pages from biznet.maximizer.com website showing “Flip-Focals” glasses (2 pages) published prior to Jun. 28, 1999.
Page from neoptx.com website showing “Optx 20/20” sunglass readers (1 page) published prior to Jun. 28, 1999.
Printout of TiredEyes.com webpage illustrating PC Lens (4 pages) published by TiredEyes.com, Inc. of Latham, NY prior to Jan. 2, 2000.
Ledbetter Donald L.
Oliphant, Jr. Samuel C.
Lee Mary M.
Mai Huy
LandOfFree
Auxiliary corrective eyeglasses for use with primary eyeglasses does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Auxiliary corrective eyeglasses for use with primary eyeglasses, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Auxiliary corrective eyeglasses for use with primary eyeglasses will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2457324