摘要:
An underwater image projection system submerged in a body of water and projecting an image within said body of water is provided having an enclosure with a lens assembly. A projection element has a light source projecting an image within the body of water from the projection element with an at least one light source steering the image. A system controller is coupled to and controls the projected light source, the projected light source steering device and the further image steering device. A user inputs image data to the controller through the user input device and the controller interprets the image data into a set of image control variables and executes control of the projected light source and image source and further image steering device in coordination and projects the image through the projection element to project from underwater a static or animated image on an underwater surface of the body of water.
摘要:
This device for monitoring the external environment of a platform, in particular a military platform, comprising: an observation mast (6) linked to the platform and comprising observation means (7) for observing the external environment, means (10) for processing output information from the observation means (7), viewing means (11) for viewing the environment linked to the means for processing information (10), is characterized in that the viewing means (7) comprise at least one digital window (8), comprising an optical system and a photographic sensor, secured to the external surface of the mast (12).
摘要:
The present invention provides a fixture and method for mounting a head window to a frame for use in a submarine periscope system. The fixture supports the head window during the potting of the head window to the frame. A spring-loaded clamping plate is mountable to a baseplate for relative movement therebetween. The clamping assembly has an oval recessed portion. A plurality of spaced apart feet are formed within the oval. The feet support and are bonded to the head window. Shim stock are placed between the feet to define a critical gap.
摘要:
A periscope has an IR sight corresponding to the infrared light split from the optical splitters; a visible camera corresponding to the visible light split from the optical splitters; and a laser range finder corresponding to the laser beam for emitting and receiving the laser beam. The three different light beams are integrated to share a common optical path by means of a prism so as to reduce the size and the cost.
摘要:
A sealing device has a sealing assembly disposed between a pair of a fixed frame and a first moving frame that relatively circularly move and rectilinearly move. The sealing assembly is fixed by bonding to the fixed frame. Two inclined fins of the sealing assembly are in slidable contact with the outer peripheral surface of the first moving frame. The fins provide a reliable light shielding, waterproofing, drip-proofing, or dust-proofing effect between the fixed frame and the first moving frame. The gap between the first moving frame and a second moving frame and the gap between the second moving frame and a frame are also sealed by the sealing assembly in the same manner. The sealing device permits reliable light shielding, waterproofing, drip-proofing, or dust-proofing, and also enables a lens frame to be made smaller at the same time.
摘要:
A filter for underwater color correction is described which could be characterized by optical transmission exhibiting more attenuation of blue/green light than red light and having a ratio of transmission at 600 nanometers and 700 nanometers substantially less than 50%.
摘要:
A prism lens attached to the window of a diving mask at a position laterally removed from the normal line of sight through the window and having a planar surface (22) and a spaced spherical surface (24) with a chord (26) of the spherical surface (24) disposed at an acute angle relative to the planar surface (22) for magnifying and bending the line of sight through the prism lens means (20) to allow viewing therethrough at an acute angle between the eye and prism lens means (20).
摘要:
An underwater viewing device that may be held in the water from a moving boat for viewing below the surface of the water. The device includes a transparent bottom with side walls secured thereto and extending upwardly therefrom, the side walls forming a water barrier totally around the bottom. One end of the bottom and corresponding side walls define a bow shape. An outwardly turned flange is located at the top of the side walls to permit one to conveniently hold the device in the water while the boat is moving, or to which a boat mounted support may be secured.
摘要:
An objective lens comprises an iris diaphragm (D.sub.1) at the front and an optical assembly disposed behind the iris diaphragm. The optical assembly comprises a plano-convex front lens unit (G) with its plane surface facing the front of the lens, whereby the lens is suitable for use in media with different refractive indices (in practice, air and water). It further comprises a rear lens unit (G') adapted to apply the necessary correction to maintain abberations within reasonable limits and to achieve a required distance from the lens to the focal image plane. The invention is applicable, in particular, to discreet surveillance using a camera.
摘要:
A waterproof bodytube having a division in its intermediate portion to be used to insert a Porro prism into the binoculars. The construction of this invention is such that a male bodytube having a projection portion is fitted to a female bodytube by means of a packing, and a screw is tightened from its outer surface by means of a packing. For this arrangement, the head of the screw is positioned at the side surface of the bodytube, and this portion is normally covered with a film so that the exposure of the screw can be prevented.