200 results about "Underwater light" patented technology

An underwater light, e.g., for a pool or spa, includes an ordinarily watertight housing, an outer compartment within the housing and floodable by water flowing therein in the event the housing is no longer watertight, a current shield within the outer compartment and at least partially defining an inner compartment within the outer compartment, a light emitter within the inner compartment, a passageway communicating between the inner and outer compartments such that outer compartment flood water can enter the inner compartment and contact the light emitter, and a conductor. The conductor is positioned so as to collect stray electrical current conducted from the inner compartment by water within the passageway, thereby reducing the risk of shock presented by such stray electrical current. The underwater light is installable within a wet niche, and includes a transformer housed in a separate compartment that extends into the wet niche for thorough cooling thereof.

The present invention is a thru-hull light for installation under the waterline of a vessel comprising a lens capable of diffusing the light broadly through the water. In a preferred embodiment, the lens is a separate, discrete component with a prismatic surface.

A pool or spa system includes networked pool or spa devices that can be dynamically configured with network address by a controller. The controller can transmit a device discovery request on a network and can receive a discovery response from pool or spa devices that require a network address. The system determines and assigns the network addresses for the pool or spa devices based on unique device identifiers associated with the responding pool or spa devices. The network addresses assigned to the pool or spa device are transmitted to the pool or spa device to be used by the pool or spa devices to communicate with the controller over the network. The system can be used to discover and assign addresses to various types of pool or spa devices, such as pumps, underwater lights, chlorinators, water feature controllers, remote controllers, and / or other types of devices.

The present invention is an underwater light for watertight installation under the waterline of a vessel, for example, within a thru-hull of the vessel, comprising a domed or plano convex diverging lens capable of diverging the light broadly through the water. In a preferred embodiment, the underwater light employs an LED array light source.

The invention relates to the technical field of optical instruments, in particular to an underwater video camera system based on polarization identification and a method thereof. The technical scheme is that the underwater video camera system comprises an underwater light source, a polarization modulation part and an image acquisition and processing part, wherein the underwater light source comprises a semiconductor laser, an optical filter, a polarizer, a polarization rotator and a beam expander; the polarization modulation part comprises an analyzer, a stepper motor, a stepper motor controller and an infrared detector; and the image acquisition and processing part comprises a high-frequency CCD (Charge Coupled Device) video camera, an image acquisition system and a computer. The underwater video camera system has the benefits that with the adoption of the underwater camera system and the method, the contrast degree and the definition of target imaging as well as the target detectionand the identification efficiency can be effectively improved; the polarization imaging can utilize the differences of different target back polarizations to eliminate the interference of background light; and as a means for identifying the target from messy background is provided, the method has remarkable advantage as compared with the commoner method for imaging and identifying the target by using light intensity.

A light and method are described herein that use correlated magnets to enable at least one end to be secured and removed from the body of the light. Some examples of such a light include a scuba light, an underwater light, a flashlight, a submersible pool light, an emergency light, a floating light, an aquarium light or a vehicle light. Furthermore the force created by the correlated magnets mounted on the at least one end and the body creates a seal there between to substantially isolate the interior portion of the light from materials and / or matter in its external environment. Additional correlated magnets mounted in the body of the light enable the light to be secured to numerous second objects such as but not limited to scuba harnesses, belts, gloves or storage racks.

The invention relates to the technical field of underwater robots, and particularly relates to a deep ocean work-type modular ROV control system, which comprises a remote communication system, a motion planning processor, a gesture detection system, a manipulator motion control system, a propeller control system, a video acquisition system, an underwater light control system, a hydraulic control system, and an underwater monitoring system, wherein the remote communication system is used for receiving an order sent by a water surface controller, acquiring data of each underwater subsystem and uploading the data; and the motion planning processor carries out integrated judgment and reasonably plans ROV motion control according to the current system state and the order sent by the water surface controller. The problem that the system is low in automation is solved; a correction and automatic judgment ability is strong; when each sub part of the system is wrong, other sub parts can cooperate mutually, safety work or recovery of the system can be ensured, and intelligence is high, and the fault tolerance ability is high.

An LED underwater light, which can be hand-held or mounted on an underwater camera housing, is switchable between two light modes. A first embodiment of the dive light is a focus light, used for initial focusing with a still underwater camera. Incorporated in the focus light is a red light source to which the focus light can be switched from initially projected white light. The switch is used to switch off a series of white LEDs while switching on a series of red LEDs. In a second embodiment, the dive light is a flood / spot light, and enables a diver to quickly switch between flood and spot beams, via separate LED arrays.

A lens for a wet environment lighting device that has a fixture with an interior that has an opening, and at least one light source located within the fixture interior. Light from the light source proceeds out through the opening. The lens is for location in front of the fixture and the light source located therein and the lens encloses the opening from the wet environment. The lens has a first light-directing area for directing light in a first beam pattern. The lens also has a second light-directing area, distinct from the first light-directing area, for directing light in a second beam pattern, distinct from the first beam pattern. The lens is positioned relative to fixture and light source therein to select from the distinct beam patterns based on the alignment of the light-directing areas relative to the light source resulting from a positioning of the lens.

A lens for a wet environment lighting device that has a fixture with an interior that has an opening, and at least one light source located within the fixture interior. Light from the light source proceeds out through the opening. The lens is for location in front of the fixture and the light source located therein and the lens encloses the opening from the wet environment. The lens has a first light-directing area for directing light in a first beam pattern. The lens also has a second light-directing area, distinct from the first light-directing area, for directing light in a second beam pattern, distinct from the first beam pattern. The lens is positioned relative to fixture and light source therein to select from the distinct beam patterns based on the alignment of the light-directing areas relative to the light source resulting from a positioning of the lens.

An LED underwater light, which can be hand-held or mounted on an underwater camera housing, is switchable between two light modes. A first embodiment of the dive light is a focus light, used for initial focusing with a still underwater camera. Incorporated in the focus light is a red light source to which the focus light can be switched from initially projected white light. The switch is used to switch off a series of white LEDs while switching on a series of red LEDs. In another embodiment, the dive light is a flood / spot light, or with another two types of selectable LED arrays, and enables a diver to quickly switch between two types of light projection. Another feature is a laser beam projecting device within the housing, with a momentary switch on the housing to power the laser, as for pointing out underwater objects of interest, the laser beam being projected to the same area as the spot beam.

A lamp assembly comprised of a waterproof casing, a lamp disposed within the casing, and a source of electrical current electrically connected to the lamp, from the source to the lamp. The lamp, when operated with a 12 volt power supply, consumes less than 40 watts The preferred lamp used in the assembly is described and claimed in U.S. Pat. No. 5,418,419.

The present invention is a view port suitable for installation under the water line of a vessel wherein the view port comprises a flange made from a corrosion resistant material and a body made from a heat resistant material. An alternative embodiment of the invention is an underwater light in which a high intensity discharge light is installed into the above mentioned view port. The light may be swiveled while installed in the view port in order to direct the light along a desired path.

An underwater diving light has a rotatable front filter ring for selecting light filtration as needed for underwater still or video photography conditions. The filter ring is removable and interchangeable with different rings. Another important feature is efficient cooling of the LEDs and other internal electronics of the diving light assembly. The water is in contact with a metallic front face that conducts heat directly away from a metal core circuit board carrying the LED array or arrays. In one form of the diving light water channels are provided so that the ambient water can enter the assembly to spaces behind the LCD circuit board to efficiently cool the LEDs and associated electronics. The front plate assembly can be removable, for rinsing the internal cooling cavities, for interchange with different front face assemblies, and for air travel when the LCDs must be removed from driving electronics for safety concerns.

The invention belongs to the technical field of underwater image processing. The invention discloses an underwater image color enhancement method based on potential low-rank representation and image fusion. The invention relates to the technical field of image processing, in particular to a method capable of performing color correction, defogging, detail enhancement and the like on an underwater image, which comprises the following steps of: 1) eliminating color cast in an imaging result caused by attenuation characteristics of illumination or light rays with different colors in water by adopting a color balance method with color compensation so as to recover the natural color of the image; 2) defogging operation is performed on the image by utilizing the characteristic of similarity between imaging in fog and underwater light propagation so that the image is enabled to more accord with the perception habit of the human eyes; according to the method for enhancing the underwater image quality, the underwater image quality can be remarkably improved, and a foundation is laid for research of image feature extraction, target recognition, tracking and the like.

An underwater diving light has a rotatable front filter ring for selecting light filtration as needed for underwater still or video photography conditions. The filter ring is removable and interchangeable with different rings. Another important feature is efficient cooling of the LEDs and other internal electronics of the diving light assembly. The water is in contact with a metallic front face that conducts heat directly away from a metal core circuit board carrying the LED array or arrays. In one form of the diving light water channels are provided so that the ambient water can enter the assembly to spaces behind the LCD circuit board to efficiently cool the LEDs and associated electronics. The front plate assembly can be removable, for rinsing the internal cooling cavities, for interchange with different front face assemblies, and for air travel when the LCDs must be removed from driving electronics for safety concerns.

The invention discloses an underwater light supplement system for recovering submerged vegetations. Currently, the recovery of aquatic plants gradually becomes an important point in water pollution control. The underwater light supplement system disclosed by the invention comprises an underwater part, a land part and a water-land connection part, wherein the underwater part is connected with the land part through the water-land connection part; the underwater part comprises an adjusting rod, an electric wire, a light supply sensor, and a waterproof LED (Light-Emitting Diode) light source; theland part comprises a solar cell and an LED light source control device; the solar cell is connected with the LED light source control device; the LED light source control device is connected with the underwater part through the electric wire; the water-land connection part comprises a drawing rope, a floater and a fixing pile; and one end of the drawing rope is connected with a center connectionpoint of the adjusting rod through the floater, and the other end of the drawing rope is connected with the fixing pile; and the floater floats on a water surface. According to the underwater light supplement system disclosed by the invention, the waterproof LED light source is commonly adjusted by the underwater light source sensor and the LED light source control device, so as to achieve intelligent control; and the underwater light supplement system is energy-saving, environment-friendly and simple and practical, and can be used for supplying light for the recovery and the growth of the submerged vegetations.

The invention provides a depth-adjustable submerged plant planting plate and relates to a submerged plant planting plate applicable to the water body environment which is lower in transparency, deeper in water level and large in water level change and water body environment disturbance, is provided with a hard substrate and does not facilitate growth of submerged plants. The problems of complicated structure, underwater light shielding caused by a floating body frame, navigation hindering and poor landscape effect of an existing submerged plant planting plate are mainly solved. According to the submerged plant planting plate, a counter-weight object is fixed to one end of a fixing rope, the other end of the fixing rope penetrates through a central hole formed in the planting plate and at least two sections of adjusting sleeves arranged at the upper end of the planting plate in sequence, and the fixing rope extends out of one end of each adjusting sleeve to be fixed to the top end of the adjusting sleeves. The depth of submerged plant planting water is adjusted by increasing the section number of the adjusting sleeves. The depth-adjustable submerged plant planting plate is simple in structure, low in cost, simple and convenient to operate, convenient to construct and capable of adjusting the submerged plant planting depth according to the growth situations of plants and change of the water body environment.

An LED underwater light, which can be hand-held or mounted on an underwater camera housing, is switchable between two light modes. A first embodiment of the dive light is a focus light, used for initial focusing with a still underwater camera. Incorporated in the focus light is a red light source to which the focus light can be switched from initially projected white light. The switch is used to switch off a series of white LEDs while switching on a series of red LEDs. In a second embodiment, the dive light is a flood / spot light, and enables a diver to quickly switch between flood and spot beams, via separate LED arrays.

An underwater pool light comprises: a housing; a lens sealingly fixed to the housing; a light source located within the housing; and mounting means for mounting the housing to a niche within or on a wall of a pool. The housing includes an integral connector for external connection to an electrical supply cable, and the pool light includes electrical connection means within the housing connecting the light source to the integral connector.

The invention discloses a method for analyzing an underwater light transmission characteristic. The method is characterized by comprising the following steps of: 1, layering a water body in a depth direction, acquiring absorption coefficient values and scattering coefficient values which correspond to different layers, and calculating diffusion attenuation coefficients of the corresponding layers according to the absorption coefficient value and scattering coefficient value of each layer; 2, calculating the transmissivity of each layer according to the diffusion attenuation coefficient of each layer, multiplying the transmissivity of each layer to obtain the whole transmissivity of a water body communication channel, and correcting the whole transmissivity by adopting a truncation error to obtain the corrected whole transmissivity; and 3, outputting the transmission characteristic of the water body communication channel according to an attenuation situation of the water body. According to the method for analyzing the underwater light transmission characteristic, the communication channel transmission characteristic of light in the water is analyzed by using a vertical distribution model of chlorophyll concentration; and compared with the conventional attenuation coefficient model, the attenuation coefficient model has the advantages that the attenuation coefficients at different depths are not required to be measured through experiments, and the method is simple and is easy to apply.

The invention relates to an underwater welding seam automatic identification system. The underwater welding seam automatic identification system comprises an underwater light source, an underwater camera, control equipment and wireless communication equipment, wherein the underwater light source is used for providing a light source for underwater shooting of the underwater camera, the underwater camera is used for shooting a welding image of an underwater workpiece when the workpiece is welded, the control equipment is connected with the underwater camera for carrying out image processing on the welding image and recognizing a welding seam of the welding image of the workpiece, the wireless communication equipment is arranged on water, is connected with the control equipment by an underwater cable and is used for receiving the welding seam of the workpiece and sending the welding seam of the workpiece to a water computer wireless. According to the underwater welding seam automatic identification system, the welding seam can be automatically detected in a severe underwater environment, and the automatic identification system can provide reliable reference data for the water computer to realize underwater welding operation control.

The invention relates to an intelligent control system for music fountains. The intelligent control system is mainly characterized in that the system comprises a DMX512 controller, an ambient lighting subsystem, a stage light subsystem, an underwater light subsystem, a water spray subsystem, an audio and video playing server, a sound amplification subsystem, a large screen subsystem and external control equipment; the DMX512 controller is connected with the ambient lighting subsystem, the stage light subsystem, the underwater light subsystem, the water spray subsystem and the audio and video playing server by a DXM512 communication protocol; the audio and video playing server is connected with the sound amplification subsystem and the large screen subsystem; and the audio and video playing server is connected with the external control equipment and achieves a control function. All the subsystems can be controlled in a unified way by one piece of external control equipment. The problem on how to intelligentize music fountain square performance is solved. The operation cost of music fountain show squares is greatly reduced, and high-speed synchronous operation of the subsystems is realized.