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AssigneePhotonis France
InventorsPierre-Yves Bony, Nicolas Laurent, Geoffroy Deltel, Arend Hiddema
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A night vision device includes a binocular body in which is mounted, along an optical axis, an objective lens, a light intensifier tube, a light guide, and an eyepiece lens. The light intensifier tube includes a photocathode, a microchannel wafer, a phosphor screen intended to deliver a night vision image and a light guide having an input side contiguous to the phosphor screen and an output side intended to form an image in the focal plane of the eyepiece lens. The light intensifier tube further includes a display in the form of a thin glass plate or of a thin film comprising light-emitting elements, the thin plate/the thin film being directly arranged on the output side of the light guide. A power supply and control module, housed within the tube body, at the periphery of the light guide, delivers the respective bias voltages of the different elements of the light intensifier tube and controls the luminescence of the light-emitting elements of the display.
A night vision device comprising a binocular body in which are mounted, along an optical axis, an objective lens, a light intensifier tube, and an eyepiece lens, the light intensifier tube comprising a photocathode receiving the light having crossed the objective lens and convert converting the photons thus received into photoelectrons, a microchannel wafer multiplying the photoelectrons received from the photocathode by generating secondary electrons, a phosphor screen delivering a night vision image based on the secondary electrons impacting it, a light guide having an input side contiguous to the phosphor screen and an output side forming an image in the focal plane of the eyepiece lens, wherein the light intensifier tube further comprises a display in the form of a thin glass plate or of a thin film comprising light-emitting elements, the thin plate/the thin film being directly arranged on the output side of the light guide, a power supply and control module, located within the light intensifier tube, at the periphery of the light guide, delivering the respective bias voltages of the photocathode, of the light intensifier, and of the phosphor screen and controlling the light-emitting elements of the display.
A replacement light intensifier tube intended to retrofit a night vision device, said night vision device comprising a binocular body in which are mounted, along an optical axis, an objective lens, a light intensifier tube, and an eyepiece lens, said light replacement intensifier tube replacing the light intensifier tube and comprising a photocathode, receiving the light having crossed the objective lens and converting the photons thus received into photoelectrons, a microchannel wafer multiplying the photoelectrons received from the photocathode by generating secondary electrons, a phosphor screen delivering a night vision image based on the secondary electrons impacting it, a light guide having an input side contiguous to the phosphor screen and an output side forming an image in the focal plane of the eyepiece lens, a display in the form of a thin glass plate or of a thin film comprising light-emitting elements, the thin plate/the thin film being directly arranged on the output side of the replacement light guide, said replacement light intensifier tube further comprising a power supply and control module housed within the tube body, at the periphery of the light guide, and delivering the respective bias voltages of the photocathode, of the light intensifier, and of the phosphor screen controlling the light-emitting elements of the display.
Dependencies are inferred from the claim text.