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Hnu Photonics

Dan O'Connell

Terry Born

A hand-held microscope includes a rigid tripod stand with adjustable legs, a visual display component, an imaging detector and an optical assembly comprising an imaging lens and an objective lens housed within an imaging tube. Multiple illumination sources can be used in the microscope, including LED or laser diode sources. The microscope can also include interchangeable imaging tubes that enable bright field, dark field, fluorescence and other imaging modalities.

Integrated portable in-situ microscope

The invention encompasses beam expanders and methods of using such beam expanders. A beam expander according to the present invention may advantageously be used with an interferometer. Beam expanders according to the present disclosure contain at least an input and an output lens, with the output lens having a plano-convex arrangement such that the surface of the output lens is optically flat and can be used as the reference surface in a Fizeau interferometer. The beam expander may also encompass a housing, a partially reflective coating and an anti-reflective coating.

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Wailuku, HI, United States of America

Dan O'Connell