Abstract: A holographic weapon sight with a housing that has a viewing end and an opposing target end. The viewing path is defined from the viewing end to the target end. The sight has a light source that projects a light beam along a path. The sight also has a diffractive optical element (DOE) disposed in the path of the light beam, and the DOE reconstructs an image of a reticle. The sight includes a parabolic reflector that reflects the image of the reticle. The parabolic reflector may be disposed in the viewing path such that a user views a target along the viewing path through the parabolic reflector from the viewing end.

Abstract: A compact sight device has a housing with a viewing and a target end. A light source projects a light beam along a path. A holographic optical element (HOE) is disposed in the path of the light beam such that the HOE is illuminated by the light beam at an incidence angle defined with respect to a line perpendicular to the surface of the HOE. The HOE reconstructs an object beam with an image of a reticle, the object beam having an object beam angle measured with respect to the line perpendicular to the surface of the HOE. The incidence angle and the object beam angle are substantially equal. The HOE further reflects a portion of the light beam at a reflection angle substantially equal to the object beam angle such that a user viewing the object beam will also see a reflected image of the light source.

Abstract: A holographic weapon sight has a housing with a viewing end and an opposing target end, a viewing path being defined from the viewing end to the target end. A light source energized by a power source projects a light beam along a path onto a liquid crystal cell module. A power controller in communication with the power source is operable to adjust the brightness of the light beam from the light source. The liquid crystal cell module is operable to rotate and polarize the light beam to further adjust the brightness of the light beam. The light beam from the liquid crystal cell module illuminates a holographic optical element (HOE) that reconstructs an image of a reticle.

Abstract: A hybrid holographic sight generates a reticle or other image for aiming a weapon or an optical device. The hybrid holographic sight includes a light source operable to project a light beam along a path and a holographic optical element (HOE) disposed in the path of the light beam. The HOE reconstructs an image of a reticle and a non-diffraction element reflects the image of the reticle, whereby a user may view a reflection of the reconstructed reticle in the non-diffraction element (NDE).

Abstract: A holographic gun sight has a housing with a viewing end and an opposing target end, a viewing path being defined from the viewing end to the target end. A light source projects a light beam along a path to illuminate a reflection-type holographic optical element (HOE). The HOE reconstructs an object beam with an image of a reticle. The absolute difference between the incidence angle of the light beam on the HOE and the object beam angle is greater than zero and less than or equal to 30 degrees.

Abstract: A sight assembly for mounting to a weapon. A holographic optical element and a light source are in a fixed angular configuration with respect to one another, but may be adjusted either together or individually in a horizontal or vertical direction. The sight assembly may have a mirror or lens. An adjustment mechanism is provided where a shaft includes at least two portions wherein the two portions of the shaft of the screw have different pitch directions and/or pitch dimensions allowing for slight adjustment the assembly. The light source may be a vertical-cavity surface emitting laser (VCSEL). A temperature sensor may sense a temperature of the VCSEL. A current to the VCSEL may be adjusted based on a change in the temperature such that the output wavelength is approximately the same as a desired wavelength. The assembly may further allow for perceived image distance adjustment using parallax mismatch.