UNDERWATER DEVICE FOR OPTOELECTRONIC EQUIPMENT (VERSIONS) Russian patent published in 2017 - IPC G02B6/36 G02B6/50 

FIELD: physics.

SUBSTANCE: underwater device for optoelectronic equipment in 1 and 2 embodiments contains a cylindrical body with end caps, fiber-optic cable sealing assemblies located on the end caps, a cassette located inside the sealed housing. Herewith the cassette, installed in the housing with a gap and with the possibility of its rigid fixation, is a design of the regular tetrahedral prism type without lateral ribs. The lateral faces are formed along the long axis of the housing by four lodgements attached at both ends of the housing to the grounds in the form of a rigid disc-shaped bearings with an outer contour in the shape of a rectangle with rounded corners and with a central hole for the fiber-optic cable. Herewith all the lodgements are made identical, having in the cross-section a circular segment with a height h, the arc of which is formed by a circle of the radius equal to the inner radius of the shell R₀, are installed with a convex side to the housing, and with a flat side - inside the cassette. On the flat sides of the lodgements of width L₀, it is possible to fix one or more cards with the optoelectronic equipment and heat sink radiators using screws. The outer contour of both supports is formed by the circumscribed circle of radius R₁, which is bounded by four chords located on the sides of the unclosed rectangle, each of which has length L₁, L₂, L₃, L₄. Supports on all sides of the unclosed rectangle of its contour are equipped with corners, on the shelves of which projecting from the outside of the cassette the ends of the lodgments are stacked with the flat side. In the 2-nd embodiment of the device, a central module is provided inside the cassette located in the plane intersecting the both supports, particularly in the diagonal plane.

EFFECT: increasing the convenience of installation of optoelectronic equipment inside the sealed enclosure, as well as increasing the reliability of this equipment and the entire device by effectively removing heat from the enclosed space of the hermetic housing into the external environment.

3 cl, 10 dwg