Patent ID: 11953752
Assignee: H. JAY MARGOLIS
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An optical imaging system comprising:
a) an optical housing able to hold one or more optical lens systems, and a frontal corrector lens system positioned within the optical housing, 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, or microscope device;
b) an objective lens system positioned behind the frontal corrector lens within the optical housing, wherein the objective lens system comprises:
i) a front objective lens system having a focal length of 30 mm (±10%), a middle lens system having a focal length of 100 mm (±10%), and a rear lens system having a focal length of 40 mm (±10%);
ii) a front objective lens system having a focal length of 30 mm (±10%), a middle lens system having a focal length of 15 mm (±10%), and a rear lens system having a focal length of 30 mm (±10%); or
iii) a front objective lens system having a focal length of 40 mm (±10%), a middle lens system having a focal length of 20 mm (±10%), and a rear lens system having a focal length of 40 mm (±10%);

c) a rear focusing system positioned behind the objective lens system within the optical housing, wherein the rear focusing system is able to transmit light or an image from the objective lens system to a rear imaging system; and
d) an aperture positioned between the objective lens system and at least one lens of the rear focusing system, where the aperture is able to limit or control the amount of light transmitted from the objective lens system;
wherein the optical imaging system provides a depth of field ranging from approximately 200 mm to infinity.