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Illumination device having two illumination functions carried out by a single set of light sources and light leaks

A lighting device and functional technology, applied in the direction of lighting devices, fixed lighting devices, electric light sources, etc., can solve the problems of aggravation, cost increase, system aggravation, etc., and achieve the effect of reducing manufacturing costs

Active Publication Date: 2016-05-11
PEZHO SITROEN AUTOMOBILS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Note that this tightness may be caused by aesthetic constraints and / or regulatory constraints
[0005] In the case of two illuminants or in the case of a single illuminant, only one lighting function is ensured per light source group, which is expensive
Furthermore, the two groups of light sources appear to be relatively bulky, adding weight to the system equipped with these two groups of light sources and possibly necessitating the presence of separate cooling components which likewise weigh the system and increase costs, Power Consumption and Complexity
Additionally, technologies required for hermeticity such as low walls (murets) or bulkheads add to component complexity

Method used

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  • Illumination device having two illumination functions carried out by a single set of light sources and light leaks
  • Illumination device having two illumination functions carried out by a single set of light sources and light leaks
  • Illumination device having two illumination functions carried out by a single set of light sources and light leaks

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Embodiment Construction

[0027] The object of the invention is in particular to provide a lighting device D capable of performing two lighting functions (illumination or signaling or (optionally decorative) lighting effects).

[0028] In the following, as a non-limiting example, it is considered that the lighting device D is used as ( figure 1 and image 3 A part of the vehicle optics unit BO shown very partially above. But the invention is not limited to this application. In fact, according to the invention, the lighting device D can be fitted on all types of systems, equipment, instruments or installations, including interior or exterior walls of buildings.

[0029] Note that the optical unit BO can also be a headlight (or headlight) or a taillight. As a non-limiting example, the lighting device D can simultaneously ensure the first function of the type of daytime running lights (or DRL (ie "DaytimerunningLight (or Lamp)" - a light-emitting signaling device that is automatically lit when the vehi...

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PUM

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Abstract

An illumination device (D) comprises a first screen (E1) provided with a rear face (FR1), at least one reflector (Ri) capable of transferring photons to the rear face (FR1) of the first screen (E1) in order for them to contribute to a first illumination function, a support plate (CE) provided with at least one light source (SLi) capable of delivering the photons and comprising a front end (EV) terminating at a chosen distance from the first screen (E1) in order to allow the leakage of photons not contributing to the first illumination function into an area (Z) located after the first screen (E1) and in front of it (CE), and a second screen (E2) provided with a rear face (FR2) placed in front of the area (Z) and capable of being backlit by photons that have leaked into the area (Z) in order to carry out a second illumination function.

Description

technical field [0001] The invention relates to a lighting device comprising a screen backlit by photons generated by at least one light source and reflected by at least one reflector. Background technique [0002] A "lighting device" is here understood to be a lighting device that can ensure two lighting functions selected from lighting, signaling and decorative lighting effects. [0003] As known to those skilled in the art, some lighting devices fitted in some systems (eg some vehicles, optionally motorized vehicles) comprise: a (optionally opalescent) screen provided with a rear surface; at least one reflector, said at least one reflector is capable of diverting photons towards the rear surface of the screen so that said photons participate in the lighting function; and at least one reflector (typically comprising at least one electroluminescent diode (or LED) or laser diode) capable of sending photons light source. [0004] When the system is to provide two different ...

Claims

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Application Information

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IPC IPC(8): B60Q1/26F21S8/10
CPCB60Q1/2607F21S43/14F21S43/239F21S43/245F21S43/249F21S43/26F21S43/31F21S43/40F21S43/50
Inventor F·维代拉A·卡鲁热G·穆瓦尼耶
Owner PEZHO SITROEN AUTOMOBILS SA
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