1. LED Systems
IES SyncLamps
LT-LED
- Synchronization with high speed video (Up to 10,000 fps)
- Cold light avoids heating of test articles
- 100,000 Lumen per lamp
- 128 individual LED’s with lenses per lamp
Available for:
- 3.1MN ServoSled
- 2.0MN ServoSled
- 1.4MN ServoSled
- Conversion Sled
Quality lighting is an integral part of high speed videography. Lighting that is improperly positioned, provides inadequate illumination, causes excessive heating of test articles or requires large energy sources to are detrimental to many test labs.
IES developed a state of the art LED light, known as the SyncLamp (named after their ability to synchronize with high speed video).
The IES SyncLamp provides uniform 100,000 lumen lighting per lamp via 128 individual LEDs, adjustable lamp angle for optimal illumination of test articles, and coldlight technology to reduce heating of test articles.
The primary features of the IES SyncLamps include:
- Synchronization – Specifically designed IES SyncLamps work to synchronize lighting flicker and camera shutter speeds (up to 10,000 fps) to for continuous lighting during camera use. This reduces the amount of heat put off by the lights during use for a “Cold-Light” output.
- Efficiency – Due to the specialized sync capabilities, IES SyncLamps use up to 99% less energy when compared to conventional lighting.
- No Waiting – The lighting system is always ready to run. Whether immediately or 20 minutes after your last test the lights will turn on to full brightness every time. There is no warm up or cool down period in order to run your next test.
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2. Metal-Halide Systems
LT
Metal Halide Lighting
(HMI)
- Adjustable lighting system length for larger coverage
- Lightweight boxes for easier installation and maneuverability
- X, Y, Z and tilt movement available for all systems
Available for:
- 3.1MN ServoSled
- 2.0MN ServoSled
- 1.4MN ServoSled
- Conversion Sled
- ServoSled 1000
Seattle Safety overhead floodlighting systems are superior solutions for crash test illumination challenges as our approach to high-speed crash lighting offers numerous design advantages. Components and assemblies used within Seattle Safety’s metal-halide lighting systems are listed below and illustrate the superior design, maneuverability and serviceability of our overhead floodlighting systems.Lightweight and rigid aluminum box housings with louvers, holes, and other features are produced to tight tolerances and are finished with attractive metallic high-temperature paint or powder coat finish for a clean and professional appearance to all Seattle Safety lighting fixtures. The box length and the number of lamps are customized for each application, with a maximum of 6 lamps, ballasts and igniter units.The lighting boxes are mounted within supporting structures to form banks; these banks are specifically designed by Seattle Safety to meet specific customer illumination requirements. Vehicle crash test labs will often have multiple side/front/angled light banks covering large areas and will typically have a 5–8m long lighted zone.The large number of relatively low powered lamps provides even lighting from multiple directions significantly minimizing shadows as compared to competitor systems that use fewer but higher powered 4KW and 8KW boosted lighting fixtures.- Lightweight – Lightweight boxes allow for lighting to be set in almost any mounting structure.
- Adaptable – Multiple boxes can be linked to illuminate longer test areas. Add motorized X, Y, Z or tilt ability for easy adjustment to light placement with the click of a button.
Light arrangements of six banks (4 boxes per bank) with an overhead drive platform, as shown to the right, are recommended for labs set up for octagonal or center pit car-to-car impact. This configuration will provide optimal lighting for car-to-car side, front, and oblique impact tests.
Shown to the left is a lighting configuration using a 4 bank lighting system (4 boxes per bank) with overhead drive platforms. This configuration is recommended for front of barrier locations. Additional options, not pictured, include front and rear lighting banks.
3. Fluorescent Systems
LT
Fluorescent Lighting System
- Optimum light spectrum and lamp efficiency
- Low infrared radiation – low heat to test article
- Non-specular lighting
- Soft shadows
- Simplified wiring
- Low power consumption
Available for:
- 3.1MN ServoSled
- 2.0MN ServoSled
- 1.4MN ServoSled
- Conversion Sled
- ServoSled 1000
Fluorescent lighting systems are superior solutions for crash testing facilities light challenges such as lamp efficiency, heat output, point source lighting, and shadows.
High efficiency lamps with Ra (CRI) = 85 and daylight (6500K) color temperature and efficiency levels that exceed 90 lumens per watt
are used to create the Fluorescent lighting system. These lamps are common for industrial use and widely available.
Tungsten halogen and metal halide lamps have an extremely hot filament and a red hot quartz arc tube, respectively. These hot sources emit large amounts of infrared radiation which is detrimental to most test articles. Fluorescents are a cool source with low infrared emission therefore the heat produced is primarily shed by convection and does not directly warm the test article.
Intense point source lighting creates intense reflections on shiny surfaces that can interfere with test analysis. Tungsten halogen and metal halide systems both have extremely intense light sources, the filament and the arc, respectively. In contrast fluorescent light is diffused at its source. The low source intensity allows a systems that does not create hot reflections. Furthermore the lower light intensity means that lamps that are in an opposing camera view are less
likely to cause lens flare or blooming.
Modern high speed video surpasses film in every metric except dynamic range. Fundamentally sensor response is linear to the number of photons falling on the pixel, whereas the eye has a logarithmic response to light. For this reason a shadow that does not appear too deep to the eye can be impenetrable in the video. Similarly highlights can be blown out, obliterating detail. For analysis purposes flat even light minimizes these problems and also increases exposure latitude so operator camera setting accuracy is less critical. Fluorescent is unsurpassed for lighting evenness, being the opposite of a point source.
The primary features of the Fluorescent lighting system include:
- Efficient – This system uses high efficiency T54HO lamps that exceed 90 lumens per watt and are commonly used in industrial settings, therefore easily accessible
- Cool Source – Fluorescents are a cool source with low infrared emissions as compared to Tungsten halogen and metal halide lamps which have extremely hot filaments and red hot quarts arc tubes respectively.
- Diffuse Lighting – Low source intensity lighting, as provided by fluorescent lighting, does not create intense point source lighting like other lighting styles providing less lens flare and bloom for cameras.
The red band in the tungsten simulation is one-stop (30,000 vs. 60,000 lux.) It does exist due to the optics of the lenticulated PAR, but the simulation exaggerates its effect. Photographically this is quite even illumination.
4. Tungsten System
LT
Tungsten Lighting System
- Tungsten-halogen lamps are incandescent light sources, which use a white-hot tungsten filament as the light source
- Achieve full intensity within 0.5 seconds after power on
- Can be restarted without delay after being turned off
Available for:
- 3.1MN ServoSled
- 2.0MN ServoSled
- 1.4MN ServoSled
- Conversion Sled
- ServoSled 1000
Seattle Safety floodlight systems have been in stalled in many labs to provide even lighting for sled testing purposes. The floodlight systems are configured to evenly and effectively illuminate the entire sled in the impact zone, with a minimum of shadows, and produce excellent results. Lamp placement reduces the chance of lamps appearing in the field of view in multicamera setups. Good crash test photography requires a diffuse light source to avoid harsh, dark shadows. Tungsten systems are usually diffuse, as they use a large number of lamps so the light strikes the subject from many angles.
The tungsten lighting system is made up of multiple PAR64 lamps in specific housings to provide ample light with the ability to illuminate the desired field.
The lamps have a long service life (approximately 800 hours) providing uniform distribution of light with 3200 color temperature rating. The rugged construction design has been used in setting such as stage, studio and film lighting as well as other dynamic testing facilities. The lamps can be restarted immediately after being turned off for easy on/off ability. Systems can be supplied in 200V, 208V, 220V, 240V, or 277V versions and can be specifically sized to provide the intense light needed for rotary prism film cameras or very high frame rate video cameras. This lighting system provides exceptionally high quality lighting with minimal setup effort.
The primary features of the Tungsten Lighting System include:
- No Delay – No warm up or cool down periods, no waiting to reach full power; turn tungsten lights on and you’re ready to test. Many lighting systems require a period of time between being turned off and their ability to restart; Tungsten lights require no delay and can be turned on immediately after being turned off
- Quality – Tungsten lighting scores a 100 on the color rendering index (CRI),
providing superior lighting for photometric requirements.
Comparison Table for Tungsten-Halogen and Metal Halide Floodlights
* HMI is a trade name of one manufacturer’s high CRI metal-halide lamps
