Test Equipment
UL Lighting Sciences is widely recognized as the world's most scientifically advanced developer of photo metric measurement systems in the lighting industry.
Twenty-six patents and numerous industry honors demonstrate UL Lighting Sciences' preeminent position as the world's most scientifically-advanced developer of photometric measurement systems. Whether its clients require equipment to build a lighting laboratory, or accurate independent testing services, Lighting Sciences Inc. has earned its global reputation for "Excellence in Photometrics."
Services
Strong competency in illuminating engineering, optical design, and research and developmen means that our equipment will always be the very most sophisticated available.
Lab Configuration
UL Lighting Sciences is the perfect partner to help you create in-house Energy Efficiency testing capabilities.
Contact UL LSI: LSI@ul.com
UL LSI offers advisory and optimization services, including accreditation and verification support for in-house laboratories of lighting industry product manufacturers, government agencies, and other test laboratories.
Lighting Test Equipment
UL LSI's staff has over three decades delivering independent photometric testing and equipment, product development consulting, and optical design. Whether its clients require equipment to build a lighting laboratory, or accurate independent testing services, LSI has earned a globally-recognized record of "Excellence in Photometrics."
High Speed Moving Mirror Goniophotometers
Fast, precise and versatile, UL LSI goniophotometers are the gold standard of the lighting industry. Three decades of continuous design refinements, software development, and customer feedback enabled the development of the High Speed Moving Mirror Goniophotometer Series 6400T.
The Series 6400T was selected by the Illuminating Engineering Society of North America as a significant engineering advancement for the lighting industry. This recognition is due primarily to the Series 6400T incorporation of a triple amplifier system that automatically optimizes amplifier sensitivity for all different intensity ranges during a photometric test.
This multiple electronic channels developed for the Series 6400T, enables lighting laboratories to run an entire indoor photometric test in less than five minutes, without manual intervention or concern for the accuracy of low-end intensity measurements.
Data collection occurs at a rate of 18,000 readings per second, allowing the mirror to rotate at up to 6 RPM throughout the entire test.
Improved data analysis software also has been developed for the instrumentation. The new software was written to facilitate the communication of Solid State Lighting (SSL) data.
Key Features:
- Luminaire remains at a fixed height during the test; mirror rotates around luminaire.
- High-quality construction delivers years of trouble-free performance
- An extremely strong steel framework allows the safe attachment of heavy luminaires
- Precision digital drives provide unrivaled accuracy
- Signal MaximizerTM circuitry with three amplifiers
- 16-bit analog-to-digital converters
- Preprogrammed computer system options
- Luminaire mounting system lowers to average chest height for safety purposes
- Automatic dark current compensation
- Rotating aperture mask in front of photo detector
- Room reflections are almost entirely eliminated
- Unmatched software selection for any test situation
- Conveniently use the test data with nearly any design and analysis software
- Luminaire hard-wire power connections
- High-speed data collection
- Customization for specialized testing is available (NearField, Flashing Source, Color etc.)
Contact UL LSI to install test equipment at LSI@ul.com
Integrating Spheres
UL now is promoting and selling Labsphere integrating spheres systems with proprietary Spectraflect® 99% diffuse reflectance coating. The combination of Labsphere's sphere-based systems and UL's goniophotometers gives customers worldwide the ability to equip their labs with one-stop shopping for best-in-class products.
Labsphere, a Halma company, is a world leading designer and manufacturer of precision radiometric and photometric test and measurement products addressing the specific needs of the aerospace, electronic imaging, LED, lighting, medical imaging and optics industries. The company offers a broad line of integrating sphere systems, uniform calibration sources, spectroscopy accessories and diffuse reflectance materials and coatings. www.labsphere.com
Software
UL LSI provides a wide range of test data processing software integrated in its equipment, that produces attractive and easy‑to‑understand reports and graphical presentations. These data files may be processed on the photometer's computer or another compatible system for processing, including a network computer. Goniophotometers are equipped with a simple‑to‑use Windows® interface that generates complete reports, including building of test report headings, application of calibration factors and insertion of a luminaire sketch. Using a single command, data processing can be switched between relative and absolute test reports. The system is IES LM-79-08 compliant for LED product testing. With the custom software package, data can be exported to external spreadsheet software.
NightMeterTM
Measuring of light trespass quantities has been a problem in the past, but with the introduction of the patented NightMeterTM, such measurements now can be readily made. The degree to which a lighting fixture is objectionable can be quantified by the illuminance (lux or footcandles) it produces at the eye, and by the intensity of light that the luminaire emits in particular directions.
The NightMeter provides the capability of measuring the intensity in candela of a single luminaire or selected group of luminaires from an observation point. It combines a telescopic photometer and a laser rangefinder to allow direct measurement of eye illuminance and distance, and computes luminaire intensity. The patented NightMeter system for measurement of light trespass is portable, and usually mounted on a tripod.
Auto-Vidi
The AutoVidi screen photometer system captures photometric readings digitally for almost instantaneous test results. A good alternative to traditional goniometer measurement systems, the Auto-Vidi employs an integrated CCD scientific digital video camera integrated in system to capture calibrated photometric readings.
Typical camera incorporates roughly 400,000 measurement points in a single frame. Each pixel is calibrated traceable to NIST, providing outstanding resolution for high accuracy photometry. Testing can be performed almost instantaneously. The Auto-Vidi is an extremely powerful and flexible testing device.
Patents
26 patents are held and pending by Lighting Sciences Inc. staff. Many of the following patents are licensed exclusively to our clients.
US patent no. 3,763,369
Refractive Grid lens
Optical grid for concentration of light from a lighting fixture, removing glare.
US patent no. 3,988,609
Fluorescent lens
Means of providing high efficiency control from fluorescent fixtures
US patent no. 4,065,667
Indirect luminaire
Reflector system for providing work plane illumination by reflecting light from room surfaces
US patent no. 4,173,778
Optical coatings for illumination systems
#1 of four patents covering unique applications for control of visible and infra‑red radiation in high efficiency optical systems
US patent no. 4,112,483
Optical coatings for illumination systems
#2 of four patents covering unique applications for control of visible and infra‑red radiation in high efficiency optical systems
US patent no. 4,310,876
Optical coatings for illumination systems
#3 of four patents covering unique applications for control of visible and infra‑red radiation in high efficiency optical systems
US Patent no. 4,081,667
Optical coatings for illumination systems
#4 of four patents covering unique applications for control of visible and infra‑red radiation in high efficiency optical systems
US patent no. 4,229,782
High Intensity Discharge
Reflector system for ambient lighting
US patent no. 4,344,111
High Intensity Discharge
Reflector system for ambient lighting with cut off
US patent no. 4,262,326
Lens
For control of High Intensity Discharge lamp
US patent no. 4,388,675
Luminaire
Fluorescent, indirect
US patent no. 4,383,289
Optical system
Forward throw optical system
US patent no. 4,575,788
Segmented luminaire
Refractor/reflector system for providing adjustable lighting patterns
US patent no. 4,652,851
Signal
Method for providing high efficiency signaling device
US patent no. 4,559,587
Wall mounted luminaire
High efficiency wall mounted area lighting system
US patent no. 4,564,888
Wall wash lighting system
Luminaire for even illumination of vertical surfaces
US patent no. 4,703,405
Glare reducing lens
Improved lens system for reducing glare and providing improved lamp hiding power
US patent no. 5,149,191
Lens/Louver
Combination for interor lighting
US patent no. 5,185,637
Photometer
Portable traffic signal photometer
US patent no. 5,278,737
Lighting unit
Wall and ceiling lighting unit
US patent no. 4,709,312
Reflector
Improved floodlight reflector
US patent no. 4,059,754
Louver
High efficiency specular louver
US patent no. 4,979,086
Reflector
Outdoor luminaire reflector system producing uniform rectangular patterns of light
US 7,876,421 B2 Applied/Pending
Light Meter Apparatus and System
NightMeter Light Trespass System
Applied/Pending
Flashlight
Flashlight with improved reflector system
Following are a few examples of LSI's optical design, research and development projects:
International Space Station - Exterior Lighting Systems; designed the lamps and exterior luminaires currently aboard the ISS
Mag-Lite Variable beam optical systems with moving lamp for flashlight
NASA Space Shuttle - Cabin Lights, Floodlights and Annunciators; all fluorescent lensing throughout the spacecraft, four personal floodlights used by the commander and pilot, and lenses for the panel displays to collect and redistribute light from miniature lamps for specific luminance and uniformity
Task Lighting - Furniture mounted fixtures with a side throw of illumination to provide glare free work surfaces. (Patented)
Department of Defense - F16 Aircraft; design and prototyping of taxiing and landing lights to government specifications
Automotive Headlights - Design of a series of automotive lenses to meet and exceed SAE specifications, using computer-automation
Roadway Lighting Reflectors - Series of reflectors for various light distributions using horizontal metal halide and sodium sources, providing high efficiency and sharp cut-off
Dental Lighting System - Optical design of a new form of dental examination light with cold mirror
Department of Defense, U.S. Naval Sea Systems Command - Marine Navigation Lights; the development of a range of shipboard lighting systems to provide color recognition and intensity patterns for collision avoidance at sea
Floodlights - Many floodlight designs for various NEMA classifications and light source types
Surgical Lighting Optics - Design of a widely-used system for a variable beam lighting system used in surgical operations
Gas Station Canopy Lighting - Design of a gas station canopy lighting system to effectively illuminate gas pumps while minimizing glare and light trespass
Reflectors for uniform ceiling lighting using HID lamps in building interiors. (Patented)
Sun-tracking Reflectors - Design of a 480 mirror heliostat system for sunlight tracking to provide interior daylighting. (Bank of Hong Kong and Shanghai)
Department of Defense - Underwater Reflectors; development of a range of complex optical systems used with metal halide, quartz and Xenon flash sources for underwater television surveillance by submarines. The optics are free-flooded with sea water causing unusual refraction problems
8224 Refractive Grid Lens - A widely used product for glare reduction in fluorescent and HID interior lighting systems. (Patented)
Triumph I Lens - A 2' x 2' lens for HID sources which provides wide spacing and square distribution. Used worldwide; an overseas standard for gasoline station lighting. (Patented)
