Disclosed is an apparatus for multi-correcting a trajectory, the apparatus comprising a trajectory correcting unit in which a polygonal cam comprising a plurality of surfaces different in distance from a rotary center is rotatably installed between a dot sight or an optical signal and a firearm to adjust an angle between an optical axis of the dot sight or optical sight and a gun barrel axis of the firearm, wherein the trajectory correcting unit is installed to be movable in an axis direction, and coaxially provided with two or more polygonal cams to respectively set trajectory correcting angles corresponding to distances in accordance with calibers of a bullet and the kinds of bullet. With this, one dot sight or optical sight can be mounted to firearms using bullets different in the trajectory or firearms different in a caliber from one another, thereby enhancing equipment use efficiency.

A replacement slide assembly for a pistol, the slide assembly having a barrel assembly with a barrel and a firing chamber. The barrel assembly also has a guide member which is a protrusion that extends horizontally outward from the barrel assembly. The replacement slide assembly also includes a housing with an interior wall that defines a groove that receives the guide member. The guide member and the groove in the housing are located forward of a firing pin assembly also mounted within the housing. The slide assembly or any firearm also includes an adjustable sight assembly that permits interchangeability between different types of sights without requiring that the firearm be re-sighted.

A replacement slide assembly for a pistol, the slide assembly having a barrel assembly with a barrel and a firing chamber. The barrel assembly also has a guide member which is a protrusion that extends horizontally outward from the barrel assembly. The replacement slide assembly also includes a housing with an interior wall that defines a groove that receives the guide member. The guide member and the groove in the housing are located forward of a firing pin assembly also mounted within the housing. The slide assembly or any firearm also includes an adjustable sight assembly that permits interchangeability between different types of sights without requiring that the firearm be re-sighted.

A tritium housing includes a body extending from a first end to a second end to define a hollow extending therebetween. A lens is disposed adjacent and surrounded by the first end of the body and a tritium vial is disposed within the hollow to produce illumination visible through the lens. The body is comprised of a colored plastic material for magnifying and brightening the tritium illumination during a daylight use of the tritium housing.

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 present invention is a laser firearm sight apparatus that has a housing attachable onto the external threads of a firearm muzzle, a light source having at least two lasers emitting laser beams, and an activating mechanism for activating and powering the light source. The housing defines a longitudinal bore for universal attachment onto several different muzzles of different types of firearms of the same caliber barrel while keeping the laser sight accurate within an acceptable range without further adjustment. The lasers emit a beam that is concentric and parallel with the muzzle and bore of the firearm.

Provided is a dot sighting device with large caliber for binocular vision in which sighting can be performed rapidly and accurately by minimizing parallax. The dot sighting device is attached to and detached from a mount for a heavy machine gun. In addition, by using the dot sighting device with large caliber, a user can rapidly and accurately sight and fire a target by taking into consideration types and characteristics of the target and a distance to the target.

A vision apparatus implemented as an optical device is disclosed. The optical device comprises a plurality of small apertures in an opaque material that is attached to a pair of eyeglasses or is a contact lens. The number and arrangement of small apertures defines the field of view and brightness of the image projected onto the user's retina. The opaque material is a collimator, and only small areas of the user's retina are illuminated by cones of light passing through the small apertures. Therefore, all of the light is rendered in focus. The optical device resolves the refractive errors of the eye of the user, improving the visual acuity of the user in any activity that requires depth of field with a large and bright field of view. Two optical devices, one for each eye, provide binocular vision with a variety of aperture arrangements to suit the user's needs.

An optics arrangement includes a polarized beam splitter arranged along an collection axis, a first quarter waveplate arranged along the collection axis, and a second quarter waveplate. The second quarter waveplate is arranged along the collection axis and is optically coupled to the first quarter waveplate by the polarized beam splitter to limit return of polarized illumination originating in a scene being illuminated for retroreflector detection. Retroreflector detectors and methods of imaging a scene are also described.

A holographic, single-unit, augmented sight has a housing containing a see-through holographic eyepiece; at least one of a visible light digital camera and an LWIR digital camera; a display to display an image from the camera(s); a shutter presenting the display; a red dot fiber-coupled LED reticle assembly using a spherical ball configuration sandwiched between two matching seats which are compressed together to contain the spherical ball configuration optical position; and a lever attached to the spherical ball configuration to rotate the ball by moving the lever up/down, left/right to adjust windage and elevation; a lower coupling prism presenting the reticle of the reticle assembly.