US 12,321,036 B1
Complex focusing system with modulating lenses
H. Jay Margolis, Centennial, CO (US)
Filed by H. Jay Margolis, Centennial, CO (US)
Filed on Feb. 11, 2022, as Appl. No. 17/670,219.
Application 17/670,219 is a continuation in part of application No. 16/560,900, filed on Sep. 4, 2019, granted, now 11,269,156.
Claims priority of provisional application 62/732,900, filed on Sep. 18, 2018.
Claims priority of provisional application 62/727,306, filed on Sep. 5, 2018.
Int. Cl. G02B 7/10 (2021.01); G02B 9/04 (2006.01); G02B 13/00 (2006.01); G02B 21/02 (2006.01); G02B 26/08 (2006.01); G02F 1/29 (2006.01)
CPC G02B 7/10 (2013.01) [G02B 9/04 (2013.01); G02B 26/0875 (2013.01); G02F 1/29 (2013.01); G02B 13/001 (2013.01); G02B 21/025 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical system comprising:
a) an optical housing able to hold one or more optical lens systems, the optical housing having a front end able to receive light from an object and a back end able to be attached to a camera, sensor, further imaging system, or microscope device;
b) a primary focusing system positioned within the optical housing, the primary focusing system comprising a first positive lens system and a first negative lens system, wherein the first positive lens system comprises a modulated lens system, or a moveable lens system able to be moved toward and away from the first negative lens system;
c) a secondary focusing system positioned behind the primary focusing system within the optical housing, the secondary focusing system comprising a second positive lens system, a second negative lens system, and a third positive lens system,
wherein the first negative lens system has a first focal length and the second positive lens system is positioned behind the first negative lens system at a distance that is between 65% to 85% of the first negative lens system focal length, and
wherein the optical system is able to produce an image of the object and adjust focus of the image, wherein the magnification or angle of view changes by less than 5% during adjustment of the focus of the image.