Abstract: A multipurpose sighting device includes a viewing window, an illuminated display, a beam combiner positioned to transmit light from a target scene and reflect light from the illuminated display through the viewing window, and projection optics having a plurality of optical elements to direct light from the display toward the beam combiner, the projection optics projecting an image of the display through the viewing window at a distance to be in focus with the target scene.

Abstract: A lightweight contact holographic sight includes a housing and a base which form a compartment containing a laser diode, an associated power source, and optical elements including a mirror, an off axis collimator, a reflection grating, and an image hologram of a reticle pattern, wherein the optical elements are arranged within the compartment to direct and fold the laser beam in a substantially generally vertical path. In one aspect of the invention, an elevation and windage adjustment mechanism is provided to rotate the reflection grating about two orthogonal axes to thereby adjust the projected reticle pattern for windage and elevation. In another aspect of the invention a removable battery compartment including a cam surface which is releasably contacted by a cam lever arm pivotally mounted on the sight housing or the base to allow for quick tool-less removal of the compartment for battery replacement.

Abstract: A putting aid includes a clamp for mounting the putting aid on the shaft of a putter and a dotted line projector mounted on the clamp for adjustment relative to the contact surface of the putter so that the dotted line is projected perpendicular to the contact surface. The dotted line projector includes a bright light source, such as a laser diode, a power source and the necessary optical elements to generate and project a line of dots on the putting surface extending generally perpendicular to the putter clubface. In one embodiment, the dots are equally spaced apart so that the distance of the backswing can be gauged by observing the number of dots that pass over the surface of the ball during the backswing. In one embodiment the putting aid includes a mounting ball secured to the clamp, and the housing further includes a housing clamp adapted to be releasably secured on the mounting ball to allow simultaneous positioning of the projector about two or more axes.