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Mechanism for cutting light beam of optical module and the optical module

A cutting-off mechanism and optical module technology, applied in the direction of headlights, signal devices, lighting and heating equipment, etc., can solve the problems of increased rebound and deterioration of coding functions, and achieve the effect of reduced rebound

Inactive Publication Date: 2018-08-31
AML SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, this springback is exacerbated by the inertia of the drive shaft driven by the belt as shown above and the rotor of the motor connected to the drive shaft
As long as the cut-off band is unstable, this springback is noticeable to the driver and leads to a deterioration of the code function

Method used

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  • Mechanism for cutting light beam of optical module and the optical module
  • Mechanism for cutting light beam of optical module and the optical module
  • Mechanism for cutting light beam of optical module and the optical module

Examples

Experimental program
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Embodiment Construction

[0026] figure 1 An optical module 1 comprising a cut-off mechanism 5 according to the invention is shown. This optical module comprises a light source 2 generating a light beam reflected by a light reflector 3 . The light beam is then projected onto a lens 4 which reverses said light beam and returns it to the road ahead of the vehicle where the optical module is installed. The lens 4 is arranged on a lens holder 7 . The light source here is a halogen lamp.

[0027] The cut-off mechanism 5 is arranged between the reflector 3 and the lens 4 . In response to the needs of the vehicle user or to an automatic command, the cut-off mechanism 5 is able to block the light beam more or less in order to provide different modes of road lighting.

[0028] will use figure 2 with image 3 The cutting mechanism 5 is described in more detail. In the remainder of the description, the terms front, rear, right, left, above and below are defined in relation to the direction of forward moti...

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PUM

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Abstract

The invention concerns a cutoff mechanism (5) of an optical module comprising a cutoff bar (10), a motor (30) driving the cutoff bar (10) between at least first and second positions via a transmission shaft (38) of the motor (30) and a driving means for driving the cutoff bar (10) linked to the transmission shaft (38), a return means (15) that tends to return the cutoff bar (10) to the first position of same, characterised by the fact that the driving means comprises a device (81) for decoupling the movement of the transmission shaft (38) relative to that of the cutoff bar (10) when the cutoff bar (10) reaches the first position. The invention also concerns an optical module comprising such a cutoff mechanism (5).

Description

technical field [0001] The invention relates to a mechanism for cutting off a light beam of an optical module and the optical module. It is used in particular in optical modules for incorporation in motor vehicle headlights (in particular oval headlights) mounted at the front of the motor vehicle. [0002] Such an optical module has a light source that projects light onto a reflector. The light is then reflected to a lens so that it is reversed and returned to the exterior of the vehicle in the form of a beam. [0003] The present invention more particularly relates to an optical module comprising a rotatable break-off band electrically actuated to move as desired from a first angular position to a second angular position in which the rotatable break-off band conceals the part of the beam in order to limit the range of the headlights to the range of the low beam, so as not to dazzle other drivers moving in the opposite direction, in the second angular position, the rotatable...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S41/00
CPCF21S41/698
Inventor A·奥布里西里尔·瑞维尔哈桑·寇劳丹尼尔·洛佩斯
Owner AML SYST