Athermalized and achromatized multispectral optical systems and methods of designing same

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United States of America Patent

PATENT NO 10890736
APP PUB NO 20180067280A1
SERIAL NO

15689770

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Abstract

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An optical system for multispectral, infrared light having at least three element. Such systems include a first element having a first thermal glass constant-instantaneous Abbe number product and a first peak wavelength, and a second glass element having a second thermal glass constant-instantaneous Abbe number product and a second peak wavelength. The first product and the second product differing from one another by greater than 0.0075 K−1. The first peak wavelength and the second peak wavelength are greater than 6 microns. The system also includes a third glass element having a third product and a third peak wavelength, the third wavelength differing from the first wavelength and the second by at least 3 microns, the third wavelength being in the range 1-5 microns. The sum of the first, second and third products being about zero. A doublet for transmitting multispectral light is also disclosed, as well as methods of designing such lenses.

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Patent Owner(s)

Patent OwnerAddress
ROCHESTER PRECISION OPTICS LLC850 JOHN STREET WEST HENRIETTA NY 14586

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ramsey, Jamie Leigh West Henrietta, US 1 2
Unger, Blair Lane West Henrietta, US 2 2

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