Robert Boschgmbh

Robert Bosch Tool Corporation

Stanley Tools and Hardware

Jay R Munroe

Timothy L Asher

Nathan J Light

Antony J Wilks

Duard Wilson

Vincent Cook

Haizhang Li

John Davenport

Yaping Liu

A method of detecting a laser beam emitted by a laser tool includes receiving light via an optical window of a receiver unit, and directing the light received via the optical window onto a first light sensor array and a second light sensor array. At least one signal is output from the first light sensor array indicating a characteristic of the light incident upon the first light sensor array. At least one signal is output from the second light sensor array indicating a characteristic of the light incident upon the second light sensor array. The at least one signal from the first light sensor array and the at least one signal from the second light sensor array are processed with respect to each other to produce a measurement signal. A determination is then made whether the received light is a laser beam emitted by the laser tool based on the measurement signal.

Laser detection system and method for a rotary laser level

A method of operating a rotary laser level includes actuating a drive system to level a laser assembly of a base unit of the rotary laser level, and emitting a laser beam from the rotating laser assembly after the laser assembly has been leveled. A first beam center position of the emitted laser beam is detected using a portable receiving unit. An initial level position is determined at the first beam center position, and the receiving unit is fixed at the first beam center position. The base unit is then rotated so the laser assembly is pointing away from the receiving unit and the laser assembly is leveled again. The laser beam is then centered on the receiving unit again and a current level position is determined. The current level position is compared to the initial level position to determine a state of calibration of a level position of the laser assembly based on the comparison.

Rotary laser level with automated level calibration

A theft detection method for a rotary laser tool includes using a motion sensor incorporated into a base unit of the rotary laser tool to detect movement of the base unit, monitoring duration of movement of the base unit as indicated by the motion sensor using a control system of the rotary laser tool, and activating an alarm indicator in response to the duration of movement being greater than a predefined threshold.

Rotary laser level with theft detection

Remote control device

Front face of a remote control device

Rotary laser unit

Rotary laser unit and remote control device

The invention provides a pipe laser that automatically self levels an inner frame system in both cross-axis and on-axis directions to provide a completely level reference for grade and line control adjustments mechanisms of a reference line generating laser source. The invention also provides a pipe laser that is operable via a bidirectional remote control.

Pipe laser

A non-cylindrically surfaced lens converts a collimated light beam into a light plane that increases a light intensity toward distal portions of the light plane's arc so as to substantially uniformly project a reference light line onto a reference surface onto which the light plane is projected. The non-cylindrically surfaced lens has first and second surfaces that remain constant over at least a portion of the z direction length of the lens. The second surface defines a multiple-radius curve in an x,y plane. The lens may be incorporated into a self-leveled optical device that projects a reference light line onto a reference surface at a predetermined angle relative to horizontal.

Light-plane projecting apparatus and lens

Laser line generator

Growing community of inventors

Watseka, IL, United States of America

Jay R Munroe