An optic assembly may include: an environmentally isolated cavity defined by at least a front lens and a housing; a light source located inside the environmentally isolated cavity, the light source to project a reticle on the front lens; and a carrier assembly located inside the environmentally isolated cavity, wherein the light source is mounted on a carrier of the carrier assembly, and the carrier assembly includes: at least one boss fixably located with respect to a bottom interior surface of the environmentally isolated cavity; and a carrier lift slidingly movable along the at least one boss to raise or lower the light source relative to the front lens; wherein the carrier is slidably movable relative to the carrier lift to laterally adjust a position of the light source relative to the front lens. Other embodiments may be disclosed and/or claimed.

A reticle unit equipped with an optical apparatus such as a riflescope includes: red and green light sources radiating red light and green light; a disc-like shaped reticle substrate that has a diffraction grating formed at substantially the center of a surface having substantially circular shape; and red and green mirror members converge light radiated from the red and green light sources, make incidence on the reticle substrate from corresponding side surface portions of the reticle substrate to illuminate the diffraction grating so as to emit first order diffracted light reflected and diffracted by the diffraction grating along a normal direction of the diffraction grating.

A reticle unit equipped with an optical apparatus such as a riflescope includes: red and green light sources radiating red light and green light; a disc-like shaped reticle substrate that has a diffraction grating formed at substantially the center of a surface having substantially circular shape; and red and green mirror members converge light radiated from the red and green light sources, make incidence on the reticle substrate from corresponding side surface portions of the reticle substrate to illuminate the diffraction grating so as to emit first order diffracted light reflected and diffracted by the diffraction grating along a normal direction of the diffraction grating.

A sighting device, including an optical element having a concave reflection surface and an aiming light source and forming in a visual field frame, comprises a main-body housing section that houses the optical element and the aiming light source and has an opening on an upper surface side, a cover member that covers the upper surface side of the main-body housing section, and a link mechanism that couples the main-body housing section and the cover member and moves the cover member with respect to the main-body housing section. The cover member is moved by the link mechanism between a closed position where the cover member covers the opening of the main-body housing section and an open position where the cover member is disposed in a position separated from the opening of the main-body housing section and forms an optical path of the aiming light.

A sighting device, including an optical element having a concave reflection surface and an aiming light source and forming in a visual field frame, comprises a main-body housing section that houses the optical element and the aiming light source and has an opening on an upper surface side, a cover member that covers the upper surface side of the main-body housing section, and a link mechanism that couples the main-body housing section and the cover member and moves the cover member with respect to the main-body housing section. The cover member is moved by the link mechanism between a closed position where the cover member covers the opening of the main-body housing section and an open position where the cover member is disposed in a position separated from the opening of the main-body housing section and forms an optical path of the aiming light.

The invention relates to an optical device for displaying a reticle or a target mark in a measuring or sighting telescope, comprising a reticle plate with a reticle disposed on one surface, a light source for illuminating this reticle, and the reticle plate has an entry surface for a beam path disposed to the side of the surface provided with the reticle, and at least one retroreflector is disposed on at least one light exit surface of the reticle plate, and a reflective layer of the retroreflector is directed towards the reticle plate.

The invention relates to an optical device for displaying a reticle or a target mark in a measuring or sighting telescope, comprising a reticle plate with a reticle disposed on one surface, a light source for illuminating this reticle, and the reticle plate has an entry surface for a beam path disposed to the side of the surface provided with the reticle, and at least one retroreflector is disposed on at least one light exit surface of the reticle plate, and a reflective layer of the retroreflector is directed towards the reticle plate.

Provided is a reticle unit 40 that includes a reticle 41 with a sight line 410, and an optical fiber 42 that forms a dot by guiding light from a light source to a center 410a of the sight line 410, wherein a light incident portion 42a for receiving light is formed at one end of the optical fiber 42, a light-emitting portion 42b for emitting light is formed at the other end 42b of the optical fiber 42, the light incident portion 42a has a spherical surface having a diameter greater than that of the optical fiber 42, the light-emitting portion 42b has an inclined surface that reflects light passing through the optical fiber 42, and the optical fiber 42 is fixed along a part of the sight line 410 so that the light-emitting portion 42b is positioned at the center 410a of the sight line 410.

Provided is a reticle unit 40 that includes a reticle 41 with a sight line 410, and an optical fiber 42 that forms a dot by guiding light from a light source to a center 410a of the sight line 410, wherein a light incident portion 42a for receiving light is formed at one end of the optical fiber 42, a light-emitting portion 42b for emitting light is formed at the other end 42b of the optical fiber 42, the light incident portion 42a has a spherical surface having a diameter greater than that of the optical fiber 42, the light-emitting portion 42b has an inclined surface that reflects light passing through the optical fiber 42, and the optical fiber 42 is fixed along a part of the sight line 410 so that the light-emitting portion 42b is positioned at the center 410a of the sight line 410.

Certain aspects of a novel weapon sight system combine a direct view, a visible light video view, and an infrared (IR) video view mode. Each of the view modes may be viewed individually or simultaneously with one or more of the other view modes through a single viewing aperture. Further, the one or more view-modes may be provided while providing a bore-sighted reticle superimposed on the selected view. Further, the reticle may be powered separately from the video view electronics enabling use of the reticle regardless of the power status video view electronics.