Hermetically sealed binoculars
AssigneeBell & Howell Company
InventorsDanny Filipovich, Rudolf Hartmann
Life of this patent
Estimating the term…
Abstract
The optical system in the binoculars includes a pair of sets of optical elements respectively on a pair of carriages mounted in an hermetically sealed housing. These carriages are moved by an external control toward and away from each other in order to vary the interpupillary distance between the two sets of optical elements. A transparent window or windows are located in front of the sets of optical elements and are hermetically mounted on the housing. The windows are large enough to be aligned with the sets of optical elements throughout the range of movement thereof.
Claims18
Hermetically sealed binoculars comprising an hermetically sealed housing, a pair of carriages mounted in said housing for movement toward and away from each other, means for moving said carriages respectively within predetermined ranges and being accessible outside said housing, an optical system including a pair of sets of optical elements respectively mounted on said carriages, and transparent window means hermetically mounted on said housing in front of said sets of optical elements and being large enough to be aligned with said sets of optical elements throughout said predetermined ranges.
Hermetically sealed binoculars comprising an hermetically sealed housing including a one-piece body and a crown therefor, first sealing means between said body and said crown, fastening means for attaching said crown to said body, a pair of carriages mounted in said body for movement toward and away from each other, means for moving said carriages respectively within predetermined ranges and being accessible outside said housing, second sealing means between said moving means and said body to render the junction therebetween substantially watertight, an optical system including a pair of sets of optical elements respectively mounted on said carriages, and transparent window means hermetically mounted on said crown in front of said sets of optical elements and being large enough to be aligned with said sets of optical elements throughout said predetermined ranges.
Hermetically sealed binoculars comprising an hermetically sealed housing, a pair of carriages mounted in said housing for movement toward and away from each other, means for moving said carriages respectively within predetermined ranges and being accessible outside said housing, first sealing means between said moving means and said housing to render the junction therebetween substantially watertight, an optical system including first and second and third and fourth sets of optical elements, said first and second sets being respectively mounted on said carriages, transparent window means hermetically mounted on said housing in front of said sets of optical elements and being large enough to be aligned with said sets of optical elements throughout said predetermined ranges, said third set of optical elements being fixedly mounted in said housing and being arranged to pass light into both of said first and second sets of optical elements, a barrel carrying said fourth set of optical elements and being located along the same optical axis as said third set of optical elements, a sleeve encircling said housing and said barrel and being rotatable to move said barrel axially, second sealing means between said housing and said sleeve to render the junction therebetween substantially watertight, and third sealing means between said sleeve and said barrel to render the junction therebetween substantially watertight.
Dependencies are inferred from the claim text.