Optical system

Optical system

  • CN 103,941,532 B
  • Filed: 01/17/2013
  • Issued: 11/25/2015
  • Est. Priority Date: 01/17/2013
  • Status: Active Grant
First Claim
Patent Images

1. an optical system, in a projector, is characterized in that, comprises:

  • One solid-state light module, in order to produce one first light beam;

    One optical module, is arranged at the side of this solid-state light module;

    One fluorescent element, be arranged at the side of this optical module, and this optical module is arranged between this solid-state light module and this fluorescent element;

    AndOne smooth trunk module, be arranged at the side of this fluorescent element, and this fluorescent element is arranged between this optical module and this light trunk module;

    Wherein, this optical module is in order to transmit and even this first light beam, irradiate on this fluorescent element to make this first homogenizer, this optical module in order to make this first light beam irradiation have a reservation shape and a predetermined area in a hot spot of this fluorescent element, thus make this fluorescent element launch one second light beam with a light-emitting area;

    Wherein, this light trunk module is in order to receive a part of light beam of this second light beam, and this segment beam has a solid angle, and the etendue that this solid angle and this light-emitting area define is equal to an etendue of a light modulator of this projector.

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