Patent · US Expired

Microscopic imaging apparatus with flat-top distribution of light

US6995902B2 · kind B2 · utility

2Cited by
6References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 27, 2003
Grant dateFeb 7, 2006
Priority date
Expiry dateOct 27, 2023

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B21/082
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A microscopic imaging apparatus with flat-top distribution of light is disclosed, which includes an incident light source, a diffractive optical element, a beam-splitter, a tunable filter and an image sensor. The diffractive optical element receives an incident light provided by the incident light source and generates a uniform incident light. The uniform incident light illuminates a sample so that an optical signal is emitted from the sample. The optical signal passes through the beam-splitter and the filter unit to reach the image sensor for obtaining the detected image of the sample.

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