Optical power meter
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Oct 30, 2003
app pub date -
Apr 29, 2003
filing date -
Apr 30, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An optical power meter is provided which can measure with high accuracy a power of a light-to-be-measured containing a plurality of wavelength of light and light-to-be-measured having a broad wavelength region without incurring cost rise and without the necessity for the user to input an wavelength of a light-to-be-measured. In an optical power meter for measuring a power of a light-to-be-measured, there are provided a photodiode having a sensitivity characteristic that sensitivity changes in accordance with a wavelength of a light incident on a light-receiving surface and a dielectric multi-layered film filter arranged on a side of the light-receiving surface of the photodiode and having a wavelength characteristic substantially reverse to the sensitivity characteristic of the photodiode.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully