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AN ILLUMINATION SYSTEM UTILIZING TWO OPPOSING DC LAMPS WITH AN OPTIMUM BARREL-SHAPED SLIT

IP.com Disclosure Number: IPCOM000023544D
Original Publication Date: 1978-Feb-28
Included in the Prior Art Database: 2004-Mar-31
Document File: 2 page(s) / 192K

Publishing Venue

Xerox Disclosure Journal

Abstract

A symmetrical light intensity distribution profile is achieved by placing a pair of similar asymmetrical linear DC gas discharge lamps in parallel position but opposed in polarity. The individual asymmetrical distributions of the lamps combine in a symmetrical total intensity distribution. A desired "butterfly" or other intensity distribution profile can be achieved.

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

AN ILLUMINATION SYSTEM UTILIZING
TWO OPPOSING DC LAMPS WITH AN
OPTIMUM BARREL-SHAPED SLIT
Charles F, Gallo
Thomas J. Hammond
James D. Rees

.1 7 1:111 1?

A symmetrical light intensity distribution profile is achieved
by placing a pair of similar asymmetrical linear DC gas
discharge lamps in parallel position but opposed in polarity.
The individual asymmetrical distributions of the lamps combine
in a symmetrical total intensity distribution. A desired
"butterfly" or other intensity distribution profile can be
achieved.

Proposed
U.S. Cl.
mt. Cl.

('22

Classification

355/8

G03g 15/28

I±I~2

P10.1 l-i~

INTENSITY

/

44 )~~g 42

POSIT)ON

Volume 3 Number 1 January/February 1978 67

PIG. 2

[This page contains 1 picture or other non-text object]

Page 2 of 2

                 XEROX DISCLOSURE JOURNAL
68 Volume 3 Number 1 January/February 1978

[This page contains 1 picture or other non-text object]