Precision blocking of lens blanks

Details Precision blocking of lens blanks Precision blocking of lens blanks

1976-02-12

1978-03-07

Clark, Conrad J.

Optics: measuring and testing

Lens or reflective image former testing

Optical center, cylinder axis, or prism measuring or...

350247, 33174A, G01B 900

Patent

active

040777227

ABSTRACT:
Method and apparatus for the precision blocking of lens blanks using a holder to de-center the blank and fix its optical axis. The holder is then used to position the blank with respect to a blocker by which an alloy hub or "block" is removably affixed to the blank so that it can be properly gripped for conversion into a finished lens product.

REFERENCES:
patent: 1542112 (1925-06-01), Tillyer
patent: 3049766 (1962-08-01), Buckminster

Affiliated with

Also associated with

Rating

Precision blocking of lens blanks does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Precision blocking of lens blanks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Precision blocking of lens blanks will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2018469