Comparison of two filament lamps by difference hologram interferometry

Total bulb fill pressure and density changes inside incandescent lamps can be studied by holographic interferometry. The main drawback stems from the fact that such techniques only provide information concerning the integral refractive index changes in response to a given electrical load. Difference...

Full description

Saved in:
Bibliographic Details
Published in:Optics and laser technology 1986, Vol.18 (6), p.318-320
Main Authors: Füzessy, Z., Gyimesi, F., Kornis, J.
Format: Article
Language:English
Subjects:
Exact sciences and technology
filament lamps
fringes
holographic interferometry
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Interferometers
non-destructive testing
Optical instruments, equipment and techniques
Physics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Total bulb fill pressure and density changes inside incandescent lamps can be studied by holographic interferometry. The main drawback stems from the fact that such techniques only provide information concerning the integral refractive index changes in response to a given electrical load. Difference hologram interferometry results in a direct comparison of any one of the large volume production lamps with a master lamp. A short discussion of the technique is presented and its experimental application is described where the difference interferogram is evaluated automatically.
ISSN:0030-3992
1879-2545
DOI:10.1016/0030-3992(86)90058-7