Unlock instant, AI-driven research and patent intelligence for your innovation.

Detection of damage to converter devices

A technology for converters and detection signals, which is applied to the safety devices, measuring devices, lighting devices and other directions of lighting devices, and can solve problems such as scale change

Active Publication Date: 2021-06-15
OSRAM GMBH
View PDF20 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The difficulty here is to determine the threshold for detecting error conditions
On the other hand, the reason for this difficulty is that when the power density or the temperature on the converter changes, the ratio also changes

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Detection of damage to converter devices
  • Detection of damage to converter devices
  • Detection of damage to converter devices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] The examples described in detail next represent preferred embodiments of the invention. It should be noted here that the individual features can be realized not only in the described feature combinations, but also alone or in other technically reasonable combinations.

[0043] For safety reasons, it is necessary to monitor lighting devices whose light radiation can cause injury to persons during operation and in particular during faulty operation. It is therefore particularly necessary to continuously check converters or conversion devices which convert, for example, pump light from a laser system (hereinafter also referred to as input light) into white or other colored light. Various possibilities for this are described below, how errors of the switching device can be better detected on the basis of the sensor signals. All solutions have in common the use of at least two position-dependent sensor signals. It can thus be achieved that power variations and temperature ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Damage to the converter device should be reliably detected. To this end, the invention relates to a lighting device and a method for detecting damage. The input light-radiation converter device (2) is utilized. The active light fraction mainly emitted by the first section of the converter device (2) is detected with the first sensor element, wherein a first detection signal is acquired and the light fraction mainly emitted by the converter device (2) is detected with the second sensor element The effective light fraction emitted by the second segment different from the first segment, wherein the second detection signal is acquired. Finally, damage information about the converter device ( 2 ) is automatically obtained from the ratio or difference of the first detection signal to the second detection signal or from the comparison signal formed therefrom.

Description

technical field [0001] The invention relates to a method for detecting damage to a converter device of a lighting device. Furthermore, the invention relates to a corresponding lighting device having a light source and a conversion device, which is illuminated by the light source with incident light during operation for generating useful light. Background technique [0002] The lighting device has, for example, a laser as light source, the radiation of which is deflected onto a converter which in particular contains a luminescent material. The lasers used generate, for example, blue light, and the converter partially converts this blue light into yellow light. Such lighting devices are known, for example, as LARP systems ("Laser Activated Remote Phosphor"). In particular, such lighting devices can be built as modules for use in the automotive industry as motor vehicle headlights. [0003] In the optical safety monitoring of the LARP module, for example, the measurement of ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F21K9/64F21V25/02G01M11/02F21W107/10
CPCF21K9/64F21V25/02G01M11/02G01N2021/646F21Y2115/30F21S41/16F21S45/70G01N2021/8845G01N2021/9511G02B27/28G01N21/95F21S41/176B60Q1/04B60Q11/005G01N21/6445
Inventor 彼得·赫曼斯特凡·哈德拉特
Owner OSRAM GMBH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com