Method for manufacturing blind zone indicator module for exterior rearview mirror assembly

  • US 9,847,028 B1
  • Filed: 08/30/2017
  • Issued: 12/19/2017
  • Est. Priority Date: 09/28/2015
  • Status: Active Grant
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First Claim
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1. A method for manufacturing an indicator module for an exterior rearview mirror assembly for a vehicle, said method comprising:

  • providing a hollow housing formed by injection molding of plastic material;

    wherein the hollow housing comprises (i) a front end adapted for attaching the indicator module at the rear of a mirror reflective element for an exterior rearview mirror assembly, (ii) a rear end opposite the front end, and (iii) an intermediate portion between the front end and the rear end;

    wherein the hollow housing comprises an inner surface that diffusely reflects light incident thereon;

    providing a circuit board having a first side and a second side opposite the first side, wherein at least one light emitting diode is disposed at the first side of the circuit board;

    disposing the circuit board between the rear end of the hollow housing and the front end of the hollow housing such that the first side of the circuit board faces the front end of the hollow housing and the second side of the circuit board faces away from the front end of the hollow housing;

    with the circuit board disposed between the rear end of the hollow housing and the front end of the hollow housing, disposing potting material at and over the second side of the circuit board to seal the rear side of the circuit board;

    attaching a diffuser element at the front end of the hollow housing, wherein the diffuser element closes the front end of the hollow housing;

    wherein, when the at least one light emitting diode is activated, light emitted by the at least one light emitting diode reflects off the inner surface of the hollow housing and passes through the diffuser element to exit the indicator module; and

    wherein the indicator module comprises a blind zone indication module.

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