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:
Oct. 06, 1987
Filed:
Oct. 15, 1984
Applicant:
Inventor:
James W Howard, Natick, MA (US);
Assignee:
Honeywell Inc., Minneapolis, MN (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350-14 ; 350417 ; 350320 ;
Abstract
An improved composite lens is described which provides higher optical transmittance and lower weight and cost than a conventional ZnSe/ZnS doublet. A method of manufacture is also described which uses a process of chemical vapor disposition of one material (e.g. ZnSe) on a blank of another material (e.g. ZnS), combined with well-known optical machining and polishing processes to obtain the desired curvatures on the lens surfaces.