Conversion optical system
AssigneeOlympus Optical Co., Ltd.
InventorAtsushi Yonetani
Life of this patent
Estimating the term…
Abstract
A conversion optical system is interposed between an optical system for transmitting, at least once, an image formed by an objective lens and a final image transmitted and obtained by the optical system so that a convergent beam of light is converted into a nearly infinite optical beam.
Claims16
A conversion optical system interposed between an image transmitting optical system and an image transmitted by said image transmitting optical system so that a convergent beam of light emergent from said image transmitting optical system is converted into a nearly infinite optical beam, wherein said image transmitting optical system receives light from an objective lens to form an intermediate image and transmits, at least once, the intermediate image.
A microscope optical system comprising, in order from an object side:
- an objective lens constructed and arranged in a microscope body;
- a conversion optical system which is mountable to said microscope body;
- and
- an observation tube optical system which is constructed separately from said microscope body, said observation tube optical system comprising an imaging lens for imaging a nearly infinite optical beam,
- wherein said conversion optical system and said observation tube optical system are constructed to be removably mounted to said microscope body, and said conversion optical system is moveable in and out of an optical path and said conversion optical system and said observation tube optical system are used in common.
A conversion optical system applied to a microscope, comprising, in order from an object side;
- a first lens unit with negative refracting power;
- and
- a second lens unit with positive refracting power,
- wherein said microscope comprises:
- a microscope body provided with an objective lens and being constructed to allow said conversion optical system to mount on said microscope body;
- and
- an observation tube provided with an imaging lens,
- wherein said conversation optical system is adapted to be inserted between said microscope body and said observation tube in a convergent beam of light emergent from said microscope body, to converge the convergent beam of light into a substantially parallel beam.
Dependencies are inferred from the claim text.