Patent · US Active

Illumination apparatus and microscope having the same

US8427752B2 · kind B2 · utility

2Cited by

9References

9Claims

0Family size

Assignee

OLYMPUS CORPORATION · JP

Inventors

Masahito DOHI · Tokyo, JP
Kenji Kawasaki · Hachioji, JP

Key dates

Filing date	Apr 7, 2010
Grant date	Apr 23, 2013
Priority date	—
Expiry date	Feb 28, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG02B21/086
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An illumination apparatus includes a light source and a collimator optical system converting light emitted from the light source to approximately-parallel light. The collimator optical system includes, in an order of proximity to the light source, a first lens having a positive power and including an approximately-flat surface and an aspheric surface, and a second lens having a positive power.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.