Optical element and scanning optical system having the same, and image forming apparatus

Optical element and scanning optical system having the same, and image forming apparatus

  • CN 1,602,433 B
  • Filed: 12/03/2002
  • Issued: 06/01/2011
  • Est. Priority Date: 12/17/2001
  • Status: Active Grant
First Claim
Patent Images

1. scanning optics comprises:

  • Light supply apparatus;

    Inflector assembly is used for deflection from the light supply apparatus emitted light beams;

    AndScanning optical apparatus is used for handle and is directed to surface to be scanned by above-mentioned inflector assembly light beams deflected,Wherein scanning optical apparatus comprises scanning lens, wherein the micromechanism grating is integrally formed with the substrate of the optical surface that forms described scanning lens, and described micromechanism grating comprises the structure with antireflection effect corresponding with the incident angle of the light beam that enters described scanning lensWherein said antireflection effect is based on according to one of at least change in grating space, the grating degree of depth and the grating constant of this micromechanism grating of incident angle, and satisfies following condition;

    Rmax≤

    1%

    Wherein Rmax represents to be provided with on it the maximal value of optical surface of this micromechanism grating at the reflectivity at each visual angle.

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