Optics: measuring and testing – Lens or reflective image former testing – Focal length measuring
Patent
1987-05-20
1989-01-10
Rosenberger, Richard A.
Optics: measuring and testing
Lens or reflective image former testing
Focal length measuring
356124, G01B 900
Patent
active
047969911
ABSTRACT:
This invention relates to a method and apparatus for measuring the optical power of soft contact lenses having a lens holding apparatus which is mountable on known prior art lensmeter structures. The lens holding apparatus includes a basic support housing means, a lens holder assembly mounted on the basic support housing means, and a lens conditioner means connected to the basic support housing means and operably engagable with the lens holder assembly. The lens holder assembly includes a contoured lens support member having a transparent lens support surface to substantially duplicate the outer contour and size of a person's eye. The lens conditioner means includes a lens wiper assembly operable through an actuator linkage assembly to move a wiper blade member over the contoured lens support member with a soft contact lens mounted thereon to provide a wetting action on both sides of the soft contact lens to duplicate the conditions when worn on the cornea of a person's eye. This operation substantially duplicates the condition of the soft contact lens as being worn on the cornea of a person's eye. The method of this invention relates to optical power measurement with the use of a lens support member being (1) cleansing; (2) wetting; (3) wiping; (4) measuring the soft contact lens; and (5) periodically rewetting and operating the device as required.
REFERENCES:
patent: 3402418 (1968-09-01), LeRoy
patent: 3985445 (1976-10-01), Tagnon
patent: 4277172 (1981-07-01), Richards
patent: 4395120 (1983-07-01), Takahashi
patent: 4496243 (1985-01-01), Machida
Gordon Michael D.
Long Norris R.
Cooper Crystal
Rein Phillip A.
Rosenberger Richard A.
LandOfFree
Method and apparatus for measuring soft contact lenses does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for measuring soft contact lenses, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for measuring soft contact lenses will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2105308