Selective color illumination device for electronic drafting tabl

Details Selective color illumination device for electronic drafting tabl Selective color illumination device for electronic drafting tabl

1981-06-25

1984-12-25

Lechert, Jr., Stephen J.

Illumination

Elongated source light unit or support

With means to accommodate additional circuit element

362 33, 362217, 362222, 362223, 362225, 362231, 362251, 362295, 362311, 362375, F21S 300

Patent

active

044907770

ABSTRACT:
A multiple light device for the illumination of bicolored translucent self adhesive tape drawings, principally used in electronic circuit drafting, which through the principal of selective absorption highlights the contrast and or color difference between the two tapes. The device is designed to replace the fluorescent lamps in light tables used in viewing the drawings without any modifications necessary to the table or lamp sockets and provides a means of illuminating the table surface with a manually selected limited spectrum light or an approximated white light by moving a magnetic field generating device, typically a magnet, over the top surface of the table on the underside of which is affixed, by adhesive, three magnetic field sensing devices forming an electrical circuit between the original lamp socket in the table and one of the three new lamp sockets supported by radially and laterally adjustable support members connected to the main support member, which includes pin contacts at each end and is of a size and configuration so as to easily fit in the original fluorescent lamp socket in the table with said contacts being attached to wires emerging from the center of the tubular main support member, connected to the switching devices and to the new lamp sockets of this device.

REFERENCES:
patent: 2643326 (1953-06-01), Knapp
patent: 2725461 (1955-11-01), Amour
patent: 4064430 (1977-12-01), Owens

Affiliated with

Also associated with

Rating

Selective color illumination device for electronic drafting tabl does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Selective color illumination device for electronic drafting tabl, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Selective color illumination device for electronic drafting tabl will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1155835