home
|
about us
|
newsroom
|
publications
|
search:
LRC Programs
Daylight Dividends
DELTA
DesignWorks
Light & Health
Lighting Metrics
Lighting Technology Greenhouse
Lighting Transformations
NLPIP
Partners
PEARL
Solid-State
Transportation
Research Areas
Applications & Design
Automotive & Street Lighting
Aviation Lighting
Controls
Daylighting
Energy & Environment
Health & Vision
LEDs
Outdoor Lighting
Product Testing
Residential Lighting
Security Lighting
Technologies
Technology Transfer
Educational Opportunities
Graduate Education
Life Sciences in Lighting
Outreach Education
search
NLPIP Home
Technologies
Publications
About the Program
FAQs
NLPIP Search
Glossary
Sitemap
Registration
New users
Returning users
Unregister
Sponsors:
<< Previous page
Photosensors
Title:
Photosensors
Date:
1998
Author(s):
John Bullough, Robert Wolsey
Number of Pages:
20
Download view-only PDF
Download printable PDF
Order Printed Copy
Online Photosensor Tutorial
Abstract
This issue of Specifier Reports provides guidance on selecting, installing, and adjusting photosensors, including manufacturer-supplied data and brand-name performance results. Although some photosensors simply switch lights on and off, this report focuses on photosensors used with dimming electronic ballasts to adjust the light output of fluorescent lighting systems over a continuous range. These photosensors are most commonly used in daylighting applications to dim electric lighting when total illuminance exceeds a preset level. Photosensors have seen limited application for three reasons: actual energy savings are difficult to predict, occupants sometimes complain about photosensors, and anecdotal reports of difficulties in properly installing and adjusting photosensors. NLPIP intends this report to promote better understanding of this technology.
