Optical reading system for electronic pocket calculators

Details Optical reading system for electronic pocket calculators Optical reading system for electronic pocket calculators

1976-07-26

1978-08-08

Corbin, John K.

D64 11B, 40447, 350115, G02B 1706

Patent

active

041052870

ABSTRACT:
The optical reading system is provided for displaying the luminous digits of the display of an electronic pocket calculator. The calculator is held within a housing which carries an optical reversing system above the digital display whereby a non-reversed image of the digits can be viewed in a substantially vertical plane. The reversing system is preferably formed by a cylindrical lens and a mirror.

REFERENCES:
patent: 1590011 (1926-06-01), Donahue
patent: 1699689 (1929-01-01), Curry
patent: 2376710 (1945-05-01), Maurer
patent: 2629003 (1953-02-01), Haalck
patent: 2959087 (1960-11-01), Strickland, Jr.
patent: 2977082 (1961-03-01), Harris
patent: 3330681 (1967-07-01), Scharf et al.
patent: 3537776 (1970-11-01), Connito
patent: 3786626 (1974-01-01), Hurt
patent: 3887791 (1975-06-01), Kitchens

Affiliated with

Also associated with

Rating

Optical reading system for electronic pocket calculators does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical reading system for electronic pocket calculators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical reading system for electronic pocket calculators will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-915572