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:
Nov. 03, 2015
Filed:
Oct. 09, 2013
Drs Rsta, Inc., Dallas, TX (US);
Eric J. Gustafson, Celeste, TX (US);
Jeff R. Emmett, Sachse, TX (US);
Rachel L. Cooper, Wylie, TX (US);
Samuel E. Ivey, Richardson, TX (US);
Rohan G. Rodney, Dallas, TX (US);
Brian R. Pekarek, Fairview, TX (US);
Patrick J. Cronkite, Palm Bay, FL (US);
Mark E. Durham, Palm Bay, FL (US);
DRS Network & Imaging Systems, LLC, Melbourne, FL (US);
Abstract
Embodiments of the invention are directed to a springless athermal lens assembly. In one embodiment, a spacer of a springless athermal lens assembly may compensate for defocus of the camera system due to thermal expansion of the lens assembly through micro wedge mechanisms coupling the spacer to an inner and outer barrel. The inner barrel comprises a lens cell assembly and a body having a micro wedge slot. The outer barrel comprises a body having a micro wedge slot. The spacer comprises an inner barrel micro wedge and an outer barrel micro wedge. The spacer is configured to be physically coupled to the inner barrel through engagement of the inner barrel micro wedge and the inner barrel micro wedge slot. Further, the spacer is configured to be physically coupled to the outer barrel through the engagement of the outer barrel micro wedge and the outer barrel micro wedge slot.