Knowledgebase
Quiescent Imaging for Deep-Sea Science: Advances in Technology and Productivity
November 26th, 2019 | Knowledgebase , Press Releases , Technical Resources
There is a need for high quality underwater imaging in the oceanographic sciences. Quiescent imaging technology provides crisp 4k underwater imaging while allowing researchers to focus on mission-critical tasks.
Dome View Ports – Best Performance Under Pressure
November 5th, 2018 | Technical Resources , Underwater Imaging
Creating 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.
Multiray™ LED SeaLite®: Do More, See More
July 21st, 2017 | Technical Resources , Underwater Imaging
The Multiray LED SeaLite lets you do more and see more: two colors and beam patterns operated independently or together in one light.
SeaSense™ Serial Protocol: Improved Control
July 21st, 2017 | Technical Resources , Underwater Imaging
SeaSense™ serial protocol yields improved control for lights and cameras over standard EIA-485 and EIA-232 industrial serial interfaces.
HD Multi SeaCam® Helps Researchers Identify Shipwreck Ituna
December 20th, 2015 | Press Releases , Products In Use , Underwater Imaging
Our HD Multi SeaCam was used by NOAA and partners to capture video footage of the shipwreck Ituna shipwreck off the San Francisco Bay.
HMI Light with Alvin Featured at Smithsonian Museum
November 6th, 2015 | Press Releases , Products In Use
The Smithsonian National Museum of Natural History features an image of Alvin’s manipulator arms with our HMI SeaArc® lights attached.
FleXlink™ HD-SDI Video Solutions
July 14th, 2015 | Underwater Imaging
Our exclusive FleXlink™ technology offers an alternative to high cost and delicate coaxial and fiber optic interconnects to HDSDI cameras on subsea vehicles and platforms.
Industry Case Study: DSPL’s FlexLink™
July 1st, 2015 | Underwater Imaging
We 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.
Advancements in Subsea High Definition Imaging
December 20th, 2015 | Press Releases , Underwater Imaging
We 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.
Subsea High-Definition Video Systems
September 1st, 2014 | Technical Resources , Underwater Imaging
A technical discussion of the challenges and solutions for High Definition (HD) video systems in subsea applications contrasted against traditional analog technology.
DVS-300 Invades Normandy
October 15th, 2013 | Press Releases , Products In Use
Our diver video system, DVS-300, assisted in creating the largest and most precise archaeological map of the five invaded beaches in Normandy to commemorate the 70th anniversary of D-Day.
Understanding the Basics of Underwater Lighting
May 1st, 2013 | Technical Resources , Underwater Imaging
In 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.
Nano SeaCam®
November 3rd, 2011 | Underwater Imaging
The 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.
LEDs are Now the Choice for Underwater Lights
May 1st, 2011 | Press Releases , Underwater Imaging
Properly 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.
True Lumens Report: Accurate Lighting Data Guaranteed
February 14th, 2011 | Optical Measurement , Technical Resources , Underwater Imaging
We 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.
Diode Lasers in Underwater Applications
June 1st, 2010 | Technical Resources , Underwater Lasers
Diode lasers are particularly well suited to marine applications because of their insensitivity to vibration, long life, compact size, wide input voltage, and instant restrike.
Advanced Underwater LED Power Supply and Light Control
May 20th, 2010 | Press Releases , Technical Resources , Underwater Imaging
While 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.
New Discoveries in Lake Baikal by the MIR Submersibles
March 20th, 2010 | Press Releases , Products In Use
The MIRs have provided stable light and camera platforms for the making of well known deep ocean films, including James Cameron’s Titanic, Bismarck, Ghost of the Abyss, IMAX Titanica, Al Giddings’ Treasure of the Deep, and BBC’s Blue Planet.
Advances in Pressure Compensated Lead-Acid Batteries
February 20th, 2010 | Power , Press Releases
Pressure compensated lead-acid storage batteries eliminate the need for heavy, bulky, expensive pressure housings for many underwater applications. This paper is focused on advancements in the venerable leadacid battery.
Color Purity of LEDs
December 14th, 2009 | Technical Resources , Underwater Imaging
The 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.
Recent Advances in Deep Sea LEDs for the Offshore Industry
June 20th, 2009 | Press Releases , Underwater Imaging
Manned 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.
Under Pressure: Testing Before Deployment is Integral to Success at Sea
February 20th, 2009 | Pressure Testing
Pressure testing has a long and storied history and remains one of the most useful tools subsea designers have available. It is a critical part of preparation but can be one of the first steps cut when resources get stretched. With the limited availability of ship time, combined with the high cost of ship operations and equipment, and long lead time of grant and project funding, it makes financial sense to validate system integrity before deployment.
Displacing Darkness: Lights in the Deep Sea
December 1st, 2008 | Press Releases , Underwater Imaging
Our 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.
Underwater Light Reflector Design
November 1st, 2008 | Technical Resources , Underwater Imaging
Two 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.
DeepSea Supplies Ceramic Flotation for HROV Nereus Project
October 28th, 2008 | Products In Use
The Nereus was a hybrid ROV built by the Deep Submergence Lab at WHOI to design the deepest parts of the ocean. We designed and manufactured ceramic floatation for the project.
Advances in High Brightness Light Emitting Diodes in Underwater Applications
October 20th, 2008 | Underwater Imaging
Light 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.
Optimal Lighting Geometry for Underwater Lights and Cameras
September 1st, 2008 | Technical Resources , Underwater Imaging
Following 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.
Application of High Power Light Emitting Diodes for Submerged Illumination
February 20th, 2008 | Underwater Imaging
High 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.
Underwater Applications of High Power Light-Emitting Diodes
August 20th, 2007 | Underwater Imaging
Solid-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.
High Brightness Light Emitting Diodes for Ocean Applications
February 20th, 2007 | Underwater Imaging
Light 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.
The Edison Towers
January 29th, 1996 | Power , Products In Use
Our SeaBatteries and HMI Lights were used to illuminate the Titanic for a live video feed to two cruise ships that were part of a 1996 expedition.
Return to the Titanic: The Third Manned Mission
December 1st, 1991 | Products In Use , Underwater Imaging
HMI 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.
Lens Field Calculator
Our lens field calculator is a complimentary web-based design tool for calculating video camera lens field of views in air and in seawater.
