Variable-Magnification Optical Loupe

摘要

An optical loupe assembly includes mechanical or electromechanical apparatus for varying the magnification of objects viewed through the loupe and or varying a working distance of the loupe. In another embodiment, an optical loupe may include a lens system comprising one or more liquid lens assemblies or liquid crystal lens assemblies for providing variable magnification.

主权项

1. An optical loupe, comprising:
an actuator; at least one eyepiece lens operatively coupled with said actuator; and at least one objective lens operatively coupled with said actuator; said actuator varying a magnification of an image viewed through said eyepiece lens and said objective lens; wherein:
the objective lens has a diameter of about 14 mm,the eyepiece lens has a diameter of about 12 mm,the distance between an end of the objective lens and an end of the eyepiece lens is about 70 mm, andthe distance from the eyepiece lens assembly 14 to a viewing plane is about 11 mm.