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. 24, 2000
Filed:
Apr. 19, 1999
Bruce Edward Bernacki, Layton, UT (US);
Iomega Corporation, Roy, UT (US);
Abstract
An axiconic telescope that receives a collimated input light beams and includes a first axicon and second axicon. Depending on the distance between the two axicons, the input collimated beam is converted to a diverging conical wave front by the first axicon, which is re-collimated by the second axicon having an oppositely signed cone angle. The output of the telescope is a collimated beam having an annular cross section, with the annulus having a width of dependent on the diameter of the telescope. The axiconic telescope may be used to produce an output beam having annulus size that can be optimized to illuminate a portion of a transducer in an solid immersion lens or photon tunning method device that contributes evanescent waves to increase resolution of an optical device.