Patent ID: 8094384

Claim:
An optical system, comprising: a first lens cell comprising: a biconcave lens element having an index of refraction to within 25% of 1.75 and an Abbe number to within 25% of 35.3; a first biconvex lens element having an index of refraction to within 25% of 1.44 and an Abbe number to within 25% of 95.0; a positive meniscus lens element having an index of refraction to within 25% of 1.52 and an Abbe number to within 25% of 59.3; a negative meniscus lens element having an index of refraction to within 25% of 1.52 and an Abbe number to within 25% of 59.3; and a second biconvex lens element having an index of refraction to within 25% of 1.52 and an Abbe number to within 25% of 59.3.