Abstract: The present invention relates to instrumentation for underwater use powered by means of a battery and provided with a pressure sensor capable of periodically detecting pressure values inside the main body of the instrumentation. The present invention also relates to a method for detecting possible pressure drops inside the main body of the instrumentation over time. The instrumentation of the present invention enables carrying out efficient and inexpensive self-diagnosis of the pressure inside the body of the device, every time the battery is changed or also during manufacture of the instrument.

Abstract: An image capture device includes electronic components and a body. The electronic components include an image sensor and a processing apparatus. The body defines an internal compartment containing the electronic components. The body includes a rear housing and a chassis. The rear housing extends around a top side, a right side, a bottom side, and a left side of the body. The chassis includes an upright portion and a lateral portion extending rearward from the upright portion. The rear housing and the chassis are coupled to each other to cooperatively form the internal compartment with the upright portion of the chassis being coupled to a front end of the rear housing and the lateral portion being positioned outside of and below the internal compartment.

Abstract: A sealing performance test method, an apparatus, and a storage medium, where the method includes obtaining a first atmospheric pressure value after a component configured to seal the apparatus is installed in the apparatus, where the first atmospheric pressure value is an atmospheric pressure value at inside of the apparatus when a pressure is applied to the apparatus, calculating an atmospheric pressure difference between the first atmospheric pressure value and an atmospheric pressure value at outside of the apparatus, and determining sealing performance of the apparatus based on the atmospheric pressure difference. Therefore, sealing performance of the apparatus can be quickly and accurately tested.

Abstract: The invention relates to an underwater digital video camera having an auto record system for automatically starting and stopping video recording at predetermined depths. The camera receives a current depth from a depth gauge and holds a sequence of recent currents depths and auto record settings such as a start trigger depth and a stop trigger depth, wherein the auto record system is adapted to, after the start/stop trigger depth is arrived at or passed for increasing/decreasing depths, start/stop video recording.

Abstract: The present invention provides a housing for use in an underwater video camera which does not require a window comprised from a thick parallel flat plate and large scale pressure resistant sealing container and which can take 3D images in deep water or hadal zone. A housing for an underwater video camera formed from a glass hollow sphere for housing an imaging video camera including filling a roughly spherical segmental shape correction lens to a spherical segment enclosed by a cutting plane parallel to a lens surface of an imaging lens of the imaging video camera housed inside the glass hollow sphere, the cutting plane being a flat surface facing the lens surface and an inner surface of a spherical crown of the glass hollow sphere cut out using the cutting plane.

Abstract: A mobile terminal device includes: a housing; a measuring unit configured to measure an air pressure inside the housing; a detecting unit configured to detect whether the housing is sealed based on a change in the air pressure measured by the measuring unit while an operation is being conducted by a user; and a notifying unit configured to notify the user of a detection result of the detecting unit.

Abstract: Systems and methods for operating mobile devices having one or more environmental sensing systems for disrupting battery power.

Abstract: A photographing device includes a pressure sensor that detects a pressure received by the photographing device; a detection unit that detects whether the photographing device is placed in the water or in the air; and a storage unit that stores image information. A controller of the photographing device starts an operation of generating time-series pressure data on the basis of an output of the pressure sensor when a first state, in which the photographing device is placed from the air into the water, is detected. The controller stops the operation of generating the time-series pressure data when a second state, in which the photographing device is placed from the water into the air, is detected, associate the image file stored in the storage unit from the first state to the second state with the time-series pressure data, and store again the image file in the storage unit.

Abstract: An image capturing device with waterproofing, comprising a main body, a first sensing unit, and a pressure control module. The main body has a containing space for containing an electronic component set. The first sensing unit is disposed at the outside of the main body and used for sensing the pressure where the main body is located to obtain a first pressure value. The pressure control module is disposed in the containing space of the main body and electrically connected to the first sensing unit. By using a second pressure sensing unit to sense the pressure of the containing space, the pressure control module obtains a second pressure value and compares the relative deviation of the first pressure value and the second pressure value through a processing unit to adjust the inner pressure of the image capturing devices.

Abstract: An electronic device is provided that includes a housing, a waterproof air-permeable membrane, a door, an air pressure gauge and a watertightness detector. The housing defines an opening and includes an air vent. The waterproof air-permeable membrane blocks off the air vent. The door is shiftably coupled to the housing and movable between a first position that uncovers the opening and a second position that covers the opening. The door and the housing form a watertight structure when the door is in the second position. The air pressure gauge is disposed inside the watertight structure. The watertightness detector is configured to determine whether the housing and the door have maintained a watertight state based on changes in the air pressure inside the watertight structure when the door moves from the first to the second position. The changes in the air pressure are measured by the air pressure gauge.

Abstract: A control system for an underwater camera housing, including a pin assembly within the housing wall. The pin has a clamp ring and a set of O-rings at an end of the pin. The pin is received into a well in the housing. A spring is received into a bushing also positioned within the well, with the pin inserted into the center of the spring, and the spring compressed against the seat of the bushing by the clamp ring. The pin is depress-able to contact a control button of the housed camera. The control system additionally includes a knob rotatably attached to the housing's exterior. The knob has a boss magnet to move a worker magnet positioned on the housing's interior. The knob is rotatable to move the boss magnet, and so move the worker magnet, to control functions of the housed camera.

Abstract: An underwater camera apparatus for use in obtaining photograph images of underwater structures is disclosed. The apparatus is comprised of a sealed box having a defined interior space with a transparent front face. A lens adaptor is mounted in an opening on the rear face of the box and a camera having a lens is mounted onto the lens adaptor. The box is provided with a removable cap plate allowable sealable access to the interior space of the box. The removable cap plate is used to fill the box with clear water to assist in making the apparatus buoyant neutral in an underwater environment.

Abstract: An aircraft electronics housing assembly maintains the electronics unit at given ambient conditions despite changes in conditions outside the housing during the aircraft flight cycle.

Abstract: A digital camera having an acoustic member includes a first cover, a water-proof sheet and a second cover. The second cover is spaced from the water-proof sheet. The first cover has a first sound hole opposed to the acoustic member. The water-proof sheet is disposed such as to covers the first sound hole. The second cover has a second sound hole. The second sound hole is deviated in position toward an outer periphery of the first sound hole so that the second sound hole is not located on an extension of an axis of the first sound hole.

Abstract: An underwater monitoring system with an automatic cleaning capability includes abase, a monitoring device mounted on the base, and a water-flow forming device mounted on the base and operable to form and direct a water flow toward the monitoring device for cleaning the monitoring device. The water-flow forming device includes a pressurizing pump for forming the water flow, such as a laminar flow, and a controller coupled electrically to the pressurizing pump for controlling activation and deactivation of the pressurizing pump.

Abstract: A waterproof housing for storing a camera with a lens barrel includes, a cylindrical lens barrel storage section for storing the lens barrel portion with a through hole communicating the outside and inside of the waterproof housing; and a rotatable cylindrical operation ring supported on an outer periphery of the cylindrical lens barrel storage section and provided to enclose an outer periphery of a rotary ring on the stored lens barrel for rotating the same. The waterproof housing also includes a transmitting member in the hole on an outer wall of the cylindrical lens barrel storage section connected to the rotary ring for directly transmitting rotation of the operation ring thereto, and a waterproof member between the outside of the cylindrical lens barrel storage section and an inner periphery of the operation ring for waterproof between the interior and the exterior of the cylindrical lens barrel storage section.

Abstract: To ensure transmission in a flexible optical network system, a digital test signal generation/comparison circuit is incorporated in an electrical signal processing portion of a transponder. The optical network system provides transparent wavelength-division multiplex service regardless of the signal type in client optical signals. Prior to connecting a client optical line to the optical system, a selective insertion unit and a selective extraction unit enable quality assessment of the client optical line.

Abstract: A pressurizable camera housing of a surveillance camera. The housing includes a transparent dome, an upper housing shell, and an upper sealing plate. The components are separable for access to the housing interior for installation and maintenance purposes. O-ring seals are provided between the separable components for maintaining pressure within the housing. A pivotal mounting bracket includes a hinged portion allowing access to wiring, circuitry and other components behind the bracket.

Abstract: In a photography method, a partial vacuum is provided within a pressure housing of a camera having an unexposed film unit. The camera is sealed against both air entry and venting, while in the partial vacuum. The camera is kept sealed until the film unit is fully exposed and while sealed, a relative pressure differential between the interior of the camera and an environment external to the camera is continuous indicated. The camera has a housing having an internal cavity water-tightly sealed from the external environment. The internal cavity has an unsubmerged internal pressure, at room temperature, less than air pressure at sea level. The camera has a camera frame assembly disposed in the internal cavity and a seal integrity indicator that provides the continuous indication of the relative pressure differential.

Abstract: A pressure indicator of an underwater camera housing has an indicator support surrounding an opening. An elastomer facing is united with the indicator support. The facing has a free region overlaying the opening. The free region has an inner surface and an outer surface. The free region is deflectable by a relative pressure differential between the inner and outer surfaces. Excessive inward excursion of the free region can be prevented by a backup.

Abstract: An underwater camera which comprises a shutter release button having an elastic construction that permits the shutter release button to be manually depressed to initiate shutter opening and to be increasingly depressed because of increases in the water pressure as the underwater depth of the camera is increased, and an underwater depth gauge that indicates increases in the underwater depth of the camera, is characterized in that the underwater depth gauge is coupled with the shutter release button for the underwater depth gauge to indicate increases in the underwater depth of the camera in accordance with increases in the depression of the shutter release button.

Abstract: To test the integrity of waterproof casings for cameras and like apparatus to be used underwater, a casing with a detector is provided. The air inside the casing is pressurized and the detector indicates leakage based on the difference between the pressurized air and atmospheric pressure. A decrease in pressure of the initial level of pressurized air implies leakage.

Abstract: A photographic camera, including an electrically responsive camera feature, includes an electrical circuit in communication with the camera feature, the electrical circuit being actuable to operate the feature. A pressure/force sensor having electrical resistance variable in response to pressure application is disposed in the camera electrical circuit such that the application of pressure on the force sensor controls the operation of the feature.