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Safety device for headlights with laser source and method for switching off the laser source in a safety-threatening situation

A safety device, technology of headlights, applied in the direction of light sources, lasers, headlights, etc., can solve problems such as blindness, occurrence or occurrence when operating headlights

Active Publication Date: 2018-05-22
ZKW GRP GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, it cannot be ruled out that under certain circumstances (such as when the lighting system is damaged, which may occur in an accident or when operating the headlights), the laser beam or its reflected light enters the eyes of people (such as passers-by), where this may cause blindness

Method used

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  • Safety device for headlights with laser source and method for switching off the laser source in a safety-threatening situation
  • Safety device for headlights with laser source and method for switching off the laser source in a safety-threatening situation
  • Safety device for headlights with laser source and method for switching off the laser source in a safety-threatening situation

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Embodiment Construction

[0018] figure 1 Shown is a headlight unit 1 which contains at least one laser source 2, in particular one or more laser diodes, and additionally contains a light converter 3 for converting the generally short-wave laser light into white light, and generally its It also contains optical equipment 4, usually a lens / mirror system. The light converter 3 contains a fluorescent substance, referred to as "phosphor", which is usually a nitrogen oxide. This substance corresponds to the wavelength of the laser to produce as white light as possible, such as US 7611642 B2. Such a headlight is known, for example, from US 2011 / 0148280 A1. Mirrors, mirror systems or vibrating mirrors can also be arranged between the laser or several lasers and the phosphor, as described in DE 10 2010 028 949 A1 mentioned at the outset. With respect to the headlight units or headlights described in this description, it should be clear that there should be at least one headlight (eg on a motorcycle) dependin...

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Abstract

A device and method for safely switching off at least one laser source (2) of at least one headlight (1) in a motor vehicle, the safety device comprising a subsystem on the vehicle side and a subsystem on the headlight side, wherein the two subsystems The systems are connected to each other via interfaces and can exchange safety-related signals (sa1, sa2, sa3, SL, SP, SB, SC, SD), the monitoring device (14) is designed to release the control signal (sta , sts, stv), and the headlight controller (10) is designed to switch off or keep off at least one laser source (2) when such a control signal (sta, sts, stv) is input.

Description

technical field [0001] The invention relates to a headlight safety device with a laser source, which safety device is designed to switch off the laser source in a safety-threatening situation, wherein the headlight unit contains at least one laser source, a light converter and an optical system. [0002] The invention also relates to a method for safely switching off at least one laser light source of at least one headlight in a motor vehicle. Background technique [0003] The use of laser sources in automobiles is currently of great importance because, for example, laser diodes are smaller in size compared to general-purpose light-emitting diodes, which allows for more flexible and efficient installation solutions and also significantly increases the brightness of the beam. [0004] At present, the power level of laser diodes used in automobile headlights is 1W, and lasers greater than 2mW will cause harm to human (and animal) eyes. However, in the known solutions, the las...

Claims

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Application Information

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IPC IPC(8): B60Q1/14B60Q11/00H01S5/00F21Y115/10
CPCB60Q1/143B60Q11/00B60Q11/002B60Q2300/112B60Q2300/114B60Q2300/146B60Q2300/45F21Y2115/10F21Y2115/30F21S41/16F21S41/176F21S45/70F21W2102/13B60Q1/1423F21S45/10F21W2102/00
Inventor E·蒂伊芬巴彻尔
Owner ZKW GRP GMBH
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