November 5th, 2018 | Technical Resources , Underwater ImagingCreating crisp, high-resolution imaging for subsea applications requires overcoming a unique set of challenges. Every piece of equipment must not only withstand the high pressure far below the surface, but also account for the way light interacts with water.
July 21st, 2017 | Technical Resources , Underwater ImagingThe Multiray LED SeaLite lets you do more and see more: two colors and beam patterns operated independently or together in one light.
July 21st, 2017 | Technical Resources , Underwater ImagingSeaSense™ serial protocol yields improved control for lights and cameras over standard EIA-485 and EIA-232 industrial serial interfaces.
December 20th, 2015 | Press Releases , Products In Use , Underwater ImagingOur HD Multi SeaCam was used by NOAA and partners to capture video footage of the shipwreck Ituna shipwreck off the San Francisco Bay.
July 14th, 2015 | Underwater ImagingOur exclusive FleXlink™ technology offers an alternative to high cost and delicate coaxial and fiber optic interconnects to HDSDI cameras on subsea vehicles and platforms.
July 1st, 2015 | Underwater ImagingWe developed a unique transmission method for uncompressed HD-SDI video signals in subsea use known as FleXlink™. After FleXlink was validated in the lab, we partnered with Woods Hole Oceanographic Institution (WHOI) to conduct field trials of the technology.
December 20th, 2015 | Press Releases , Underwater ImagingWe are guided by several basic principles when creating any new product design. Performance, immersion longevity, durability, and compact form factor are just a few of the underlying concepts considered a necessity for any product that bears our name. This article discusses how these philosophies are applied to our development of High Definition imaging systems, including the FleXlink technology.
September 1st, 2014 | Technical Resources , Underwater ImagingA technical discussion of the challenges and solutions for High Definition (HD) video systems in subsea applications contrasted against traditional analog technology.
May 1st, 2013 | Technical Resources , Underwater ImagingIn subsea photographic and video imaging applications, one of the challenges that system designers, integrators, and operators face is bringing along all of the light they will need for tasks below depths of about 150 to 250 m. At these depths, an understanding of how light propagates through water helps designers and users balance mission requirements against the real-world constraints of underwater lighting while helping them make informed lighting choices.
November 3rd, 2011 | Underwater ImagingThe Nano SeaCam underwater video camera is a high resolution camera in a tiny package that goes deep. With a diameter of only 25mm (0.985”) and a length of 88.2mm (3.47”), including the connector, the Nano SeaCam provides quality video in a truly tiny package.
May 1st, 2011 | Press Releases , Underwater ImagingProperly designed underwater LED lights can be “plug & play” replacements for halogen lights. They can operate using the same wide choice of connectors, the same input power (120VAC or low voltage DC), and the same dimming controls (variable voltage or phase control dimming) as the halogen lights that they replace. This makes it easy for underwater operators to significantly upgrade the lighting that they use without encountering complex or costly changes in the process.
February 14th, 2011 | Optical Measurement , Technical Resources , Underwater ImagingWe ship a True Lumens Report with our SeaLite Sphere, Lumos, and Nano lights. You can count on the lumens output and emitted color matching our design specifications for every unit.
May 20th, 2010 | Press Releases , Technical Resources , Underwater ImagingWhile great attention is given to LED solid state devices during their rapid evolution, they are just one component in a larger electronic circuit. LEDs are tiny, fragile devices that will be easily damaged if allowed to overheat or if exposed to excessive voltage or currents. These devices need an external electronic circuit, commonly called a driver, to safely control the power applied to them. This article will look at the driver circuitry behind the light emitters.
December 14th, 2009 | Technical Resources , Underwater ImagingThe term “Color Purity” often invites inquiries from customers viewing the spectral graphs generated by our integrating sphere. Color Purity was specifically created for LEDs with the 1997 CIE 127 Document and does not apply to any other type of light source, such as HID, HMI, CFL, or incandescent.
June 20th, 2009 | Press Releases , Underwater ImagingManned vehicles, ROVs, and Saturation Divers are adopting Light Emitting Diodes (LEDs) as powerful and durable light sources. Developments continue to follow the rapid evolution of LEDs for general topside illumination. Our engineers have devised compact ocean optics, both reflectors and lenses. Successful pressure compensation of both LEDs and driver electronics foretell future designs in diver and vehicle lighting.
December 1st, 2008 | Press Releases , Underwater ImagingOur line of underwater lights are used around the world by the most demanding end users in the earth's most extreme environments, including hot water hydrothermal vents, high pressure ocean trenches, radioactive nuclear storage facilities, and biohazardous sewage treatment plants.
November 1st, 2008 | Technical Resources , Underwater ImagingTwo of the most important performance parameters for underwater lights are beam control and beam angle, both of which are primarily functions of reflector design rather than lamp type.
October 20th, 2008 | Underwater ImagingLight Emitting Diodes (LEDs) continue to make headway in the undersea world as efficient and durable light sources. Undersea lighting designers continue to follow the rapid development of LEDs for general commercial illumination. In addition to improvements in LED technology, electronic drivers have become more compact and increasingly efficient, providing options to end users for thermal roll-back, dimming, AC/DC, or variable voltage input with constant current output.
September 1st, 2008 | Technical Resources , Underwater ImagingFollowing ideal reflector design, the placement of an underwater light, or "luminaire", relative to the camera will have the greatest affect on image quality, due to "Common Volume Scattering," which can result in backscatter in the present of suspended particles or organisms.
February 20th, 2008 | Underwater ImagingHigh Brightness Light Emitting Diodes (HB-LEDs) are a reliable, efficient, compact, and robust light source for underwater applications including diver, ROV, AUV, free vehicle, and manned submersible platforms. LED lights are capable of single color or full daylight spectrum, offering unique solutions to oil field and other commercial problems.
August 20th, 2007 | Underwater ImagingSolid-state Lighting Comes of Age in the Deep Sea as High-Power LEDs Debut on dives by the submersible Alvin. LED-based lighting has seen significant performance improvements recently and is moving from specialty and indication applications, such as traffic signals and flashlights, to general home and business lighting applications. DeepSea Power & Light recently tested its underwater LED SeaLites on Alvin, Woods Hole Oceanographic Institution's (WHOI) manned submersible.
February 20th, 2007 | Underwater ImagingLight Emitting Diodes (LEDs) are emerging in the undersea world as a reliable, efficient light source capable of narrow or wide chromatic bandwidth. Use of gas discharge lamps as light sources in the deep sea is complicated by the need to pressure protect the sealed bulbs. LEDs provide a viable alternative for many diver, submersible, and unmanned vehicle applications.
December 1st, 1991 | Products In Use , Underwater ImagingHMI lights, used to illuminate the Titanic in this 1991 expedition, are compact high efficient light sources that produce a near-daylight spectrum that penetrates much further in seawater than conventional lights.