The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 27, 2009
Filed:
Mar. 14, 2003
Applicants:
Leslie F. Warren, Jr., Camarillo, CA (US);
Hong-son Ryang, Camarillo, CA (US);
Inventors:
Leslie F. Warren, Jr., Camarillo, CA (US);
Hong-Son Ryang, Camarillo, CA (US);
Assignee:
Rockwell Collins, Inc., Cedar Rapids, IA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 15/16 (2006.01); C01B 25/37 (2006.01); F21V 9/00 (2006.01); G03C 1/00 (2006.01); G02B 5/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A composition for a filter material includes a dye and possibly a polymer host. The dye includes a Co(II) compound, a Ni(II) compound or a mixture thereof. Filter material can have a transmittance at 500 nanometers of at least 80% and a steep cutoff absorption band with a transmittance between 600 and 700 nanometers of no more than 10%.