Abstract: Various laser level designs including an improved core structure are shown. In one example, the laser level includes housing, a core structure, and a laser generator positioned within the cores structure and/or the housing. The core structure further includes a plurality of leveling pins allowing for leveling in one or more directions and one or more pin retainers coupled to and extending between the leveling pins.

Abstract: A clamp for laser level detectors release mechanism is provided. The clamp includes a body, a shaft slidably coupled to the body, a fixed jaw, and a moveable jaw coupled to the shaft. The clamp permits adjusting the position and orientation of the laser level detector while the clamp remains coupled to a work piece.

Abstract: Various laser level designs including the ability to physically/mechanically mask light emitted from the laser level are shown. In one example, the laser level includes physical barriers that can be moved between open and closed positions to selectively block or mask a desired portion of the projected laser plane.

Abstract: A laser level assembly is provided. Various methods of managing communications between laser levels and detectors are provided. In one or more methods, upon receiving a selection of a communication channel the laser level emits a laser with certain characteristics, such as by adjusting the rotation speed, rotational direction, and/or emitting the laser in a repeating on/off pattern.

Abstract: When a person uses a computer, the graphic display of the computer screen causes a user's eye blink rate to be reduced by an average of sixty-six percent. This reduction in blinking can cause a variety of eye ailments, such as eye strain that results from lack of adequate blinking. This system is a light display system for compelling a computer user to blink their eyes. In one embodiment, the system includes a computer screen, a light source associated with a controller configured to execute a program to activate and deactivate the light source, wherein the light source turns the light on and off when the light source is activated, and deactivated. The systems and methods provide advantages in that a computer user will involuntarily blink as the light source is activated, which will increase the overall blink rate of the computer user's eyes, and reduce eyestrain therefrom.