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Automotive lighting device and method for controlling an element thereof

A lighting device, motor vehicle technology, used in signaling devices, vehicle components, lighting and heating equipment, etc., can solve problems such as blocking dry air from reaching the glass surface

Pending Publication Date: 2021-08-06
VALEO VISION SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these opaque walls prevent a free path for dry air to reach the glass surface and avoid condensation

Method used

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  • Automotive lighting device and method for controlling an element thereof
  • Automotive lighting device and method for controlling an element thereof
  • Automotive lighting device and method for controlling an element thereof

Examples

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Embodiment Construction

[0060] The exemplary embodiments are described in sufficient detail to enable one of ordinary skill in the art to embody and implement the systems and processes described herein. It is important to understand that embodiments may be provided in many alternative forms and should not be construed as limited to the examples set forth herein.

[0061] Therefore, while the embodiments may be modified in various ways and take various alternative forms, specific embodiments thereof are shown in the drawings and described in detail below as examples. There is no intention to be limited to the particular forms disclosed. On the contrary, it is intended to cover all modifications, equivalents and alternatives falling within the scope of the appended claims. Where appropriate, elements of the exemplary embodiments have been consistently designated by the same reference numerals in the drawings and detailed description.

[0062] figure 1 A schematic diagram of a motor vehicle lighting de...

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PUM

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Abstract

The invention provides an automotive lighting device (1) comprising a light source (2), a driver arranged to control the operation of the light source (2), a housing (4), a desiccant salt (6) and a separating element (7). The driver comprises a driver cover (3) arranged to dissipate the heat generated by the driver. The housing (4) comprises a housing wall and a ventilation element (5) located in the housing wall, the ventilation element (5) being configured to allow water vapour to exit the housing (4). The desiccant salt (6) is arranged in thermal contact with the driver cover (3). The separating element (7) is provided between the desiccant salt (6) and the light source (2). A method for controlling the operation of the separating element (7) is also provided.

Description

technical field [0001] The invention belongs to the field of lamps for motor vehicles, and more particularly relates to the design of headlamps for avoiding fogging of the outer glass. Background technique [0002] Current headlamps must meet different requirements that sometimes involve conflicting design paths. An example of this relates to the problem of dehazing. [0003] Fogging occurs when water vapor condenses on the inner surface of the glass. Microdroplets are unsightly and can affect the behavior of light, so a huge effort has been put into solving this problem. However, in order to design modern and efficient lighting fixtures, walls of opaque material must surround the light source to avoid light leakage. However, these opaque walls prevent a free path for dry air to reach the glass surface and avoid condensation. [0004] So the better the solution to avoid light leaks, the worse it is to avoid glass condensation, because these opaque walls create a tortuous...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S45/33
CPCF21S45/33F21S45/47
Inventor 蒂博·门塞德里克·梅兰克莉丝汀·卢卡勒斯
Owner VALEO VISION SA
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