American Optical Corporation

Arthur H Shoemaker

A microscope illumination system provides light for both transmitted and vertical microscopy techniques. A transmitted light illuminator comprises a collector lens system, a zoom lens system, and a collimator lens system which direct the light from a source to the microscope condenser. The vertical illumination system utilizes the same light source and comprises a collimator lens system, a relay lens system, and a collector lens system which provides the light directed into the rear of the microscope objective by a beam splitter.

Microscope illuminator for both transmitted and vertical microscopy

A four-component eyepiece for an optometer has an eye relief of about 117mm and is substantially free of chromatic aberration.

Optometer eyepiece

A four-member microscope objective having a numerical aperture of 0.25 provides a magnification of substantially 10.times. and a substantially flat image field of 24mm in combination with a telescope objective as described in U.S. Pat. No. 3,355,234 and a typical 10.times. eyepiece.

Four-component microscope objective

A two-element objective having a numerical aperture of 0.10 in combination with a telescope objective as described in U.S. Pat. No. 3,355,234 and a typical 10.times. eyepiece has a magnification of 4.times. and a substantially flat 24mm image field.

Two-element microscope objective

Microscope vertical illuminor

A drawing attachment having a focusing system, a power changer system and a telescope, when used in conjunction with an infinity-corrected microscope, permits superimposition of the object viewed through the microscope and a drawing surface for making a drawing of the object being observed. The size of the board is varied by the power changer to permit adjustment of the relative size of the object to the board. The device is designed to be used with an infinity-corrected microscope and is attached to the microscope in the parallel-light zone between the objective and the telescope lens of the microscope.

Drawing attachment having a focusing system, power changer system and a

A microscope illuminator having three lenses with the center lens having an axially-symmetrical aspheric rear surface provides good lateral color correction for illuminated fields to 20mm. when used with a condenser having good color correction.

Microscope illuminator

Microscope objectives having a numerical aperture of substantially 0.25 and a magnification of about 10X provide a substantially flat image field of about 24mm.

Microscope objectives

A four element microscope objective has a predetermined magnification and a numerical aperture of substantially 0.10. The microscope objective provides correction for the usual chromatic aberrations as well as spherical aberrations, coma, astigmatism and a substantially flat image field over a 24mm field when used with a telescope objective as described in U.S. Pat. No. 3,355,234 and a typical 10.times. eyepiece.

Four element microscope objective

A three element 12X eyepiece has an apparent field of view of about 51.3.degree. and a maximum exit pupil diameter of substantially 1.25mm.

Growing community of inventors

East Aurora, NY, United States of America

Arthur H Shoemaker