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A new universal and variable flash device for visual examination and photomicrography: VISUFLASH
Author(s) -
Maaren P. W.,
Hamann D. J.
Publication year - 1975
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.1365-2818.1975.tb03903.x
Subject(s) - flash (photography) , optics , contrast (vision) , interference (communication) , light source , ray , physics , optoelectronics , computer science , telecommunications , channel (broadcasting)
SUMMARY A recently developed illumination device for microscopes, VISUFLASH, is a universal and variable flash steering device for visual examination, photomicrography and cinematomicrography. The spectral energy distribution of light from the flashtube is suitable for UV‐ visible‐ and IR‐light examination. Furthermore it is, with the aid of the customary filters, possible with this light source to carry out microscopic examinations with transmitted and incident light, and make observations when use is made of dark‐field illumination, phase contrast (+ and ‐), interference contrast, INTERPHACO®, fluorescence contrast and polarized light. Problems in connection with ultra‐short‐time‐effect and the Schwarzschild effect do not occur. In comparison to existing gas discharge light sources VISUFLASH is economical.