Robert Boschgmbh

Eladio Lopez

Dominique Marchal

Philippe Schweizer

Christian Lietar

Jean-Francois Longchamp

Jan Weingarten

The disclosure is based on a hand-held laser distance measuring device comprising at least one laser unit which is configured to determine a first distance using a laser beam emitted in a first relative direction. The laser unit is further configured to determine at least one second distance, near instantaneously, using a laser beam emitted in at least one second relative direction which differs from the first relative direction.

Hand-held laser distance measuring device

A headlight illumination field regulating apparatus includes an electromagnetic radiation emitter, a reflected radiation sensor, an evaluation unit, and a unit for adjusting the alignment position of the headlights. The electromagnetic radiation emitter operates to radiate electromagnetic radiation on the road to the front of the automobile and the reflected radiation sensor senses reflected radiation and creates a data point representative of the irradiated spot. The evaluation unit evaluates the data points to establish the position of the detected spot or area and thereafter compares the evaluated position with a predetermined desired position and subsequently generate a correction signal to control the regulation or adjustment of the headlights into a proper light projecting orientation which ensures a proper projection limit of the beam of the headlight.

Apparatus for regulating the illumination field of a vehicle headlight

A headlight illumination field regulating apparatus includes an electromagnetic radiation emitter, a reflected radiation sensor, a comparing element, and a unit for adjusting the alignment position of the headlights. The electromagnetic radiation emitter operates to radiate two electromagnetic radiation beams on the road to the front of the automobile and the reflected radiation sensor senses reflected radiation and determines a relationship of a sensed characteristic of the first radiation beam and a sensed characteristic of the second radiation beam and creates a data point representative of the irradiated spot. The comparing element thereafter compares the determined relationship between the sensed reflected radiation characteristics with a predetermined desired position and subsequently generate a correction signal to control the regulation or adjustment of the headlights into a proper light projecting orientation which ensures a proper projection limit of the beam of the headlight.

Apparatus for regulating the illumination field id a vehicle headlight

The apparatus for control of a light-range of headlights of a motor vehicle includes two headlight orientation adjusting devices; at least one electro-optic sensor detecting actual values of light intensities of light reflected from an illuminated portion of the road; and an analyzer/control unit connected to the at least one electro-optic sensor and the adjusting devices to control the adjusting devices and the headlight orientation according to the sensor signal. To maintain the light-range of the headlights regardless of load conditions, the analyzer/control unit contains a memory device for storing data including set values of the light intensities for a desired headlight orientation and for storing other data including actual values of the reflected light intensities for actual headlight orientations when the headlights are set in the actual orientations; a comparator device for comparing the actual values for different actual orientations and the set values for the desired orientations; and a control device for controlling the adjusting devices according to the comparator device to set the headlights in various other actual orientations until the differences between the set values and actual values are minimized to determine the actual orientation closest to the desired orientation.

Growing community of inventors

La Croix sur Lutry, Switzerland

Eladio Lopez