National Optronics, Incorporated

Other

Mark Donald Wagner

Daniel Edward Andrews

David Matthew Smith

David W Gerding

Jennifer Snyder Shanks

Henrik Arthur Schutz

Curtis Kenneth Deckert

A lens blocking device is disclosed that includes a frame, a light source mounted on the frame, a carriage having a first end and a second end mounted on the frame for sliding movement between first and second positions, a first mirror mounted on the carriage first end and a lens block holder mounted on the carriage second end and shiftable between third and fourth positions with respect to the carriage, a stage disposed between the light source and the carriage, and including an opening, for supporting an object, an at least partially translucent screen generating a display image operably connected to the support frame, at least one second mirror arranged to reflect an image of an object on the stage from the first mirror, when the carriage is in the first position, onto the screen, and an actuator operably connected to the carriage. The actuator shifts the carriage between the first position and the second position and shifts the block holder between the third position and the fourth position, and the display image on the screen is superimposed over an image of the object on the stage when the carriage is in the second position.

Lens blank alignment and blocking device and method

Lens blocker

The preferred embodiment is directed to a lens shaper and finisher which can readily accommodate large sized lens blanks. The preferred embodiment includes a chuck for supporting a lens blank and a lens pattern. A cutter is operably associated with the chuck. A plurality of piston and cylinder assemblies displace the chuck relative to the cutter between a first position wherein the lens blank is removed from the cutter and a second position wherein the lens blank engages the cutter. A control device is operably connected to a least one of the piston and cylinder assemblies to vary the rate at which the lens blank is fed to the cutter. Accordingly, the feed rate may be readily adjusted such that during a rough cutting cycle a lens blank is fed at a slower rate than during a finish cutting cycle to reduce the likelihood of shattering of the lens blank during the cutting process.

Method and apparatus for shaping and finishing lenses

Growing community of inventors

Afton, VA, United States of America

Mark Donald Wagner