For the infrared cutoff filter with Red absorption layer of digital camera

For the infrared cutoff filter with Red absorption layer of digital camera

  • CN 103,163,710 B
  • Filed: 02/20/2012
  • Issued: 05/22/2018
  • Est. Priority Date: 12/09/2011
  • Status: Active Grant
First Claim
Patent Images

1. a kind of camera apparatus, including:

  • Imaging sensor generates image to capture images light and in response to described image light;

    Imaging len, with described image sensor optical alignment described image light is focused in described image sensor;

    AndInfrared cutoff filter is placed between the imaging len and described image sensor to reach in described image lightInfrared light component is removed from described image light before described image sensor, the infrared cutoff filter includes:

    At least one Red absorption layer, the red light component in partly absorbing described image light, wherein described at least oneRed absorption layer includes Red absorption substrate, and further comprises being placed on the Red absorption substrate and towards described imageThe Red absorption film of sensor;

    AndInfrared reflective device, reflects the infrared light component, and the infrared reflective device is placed at least one Red absorptionBetween layer and the imaging len,Wherein described Red absorption substrate be the red light component in partly absorbing described image light and transmission green andThe cyan filter of blue component, wherein the Red absorption substrate is arranged to absorb what is reflected by the infrared reflective deviceA part for the red light component in described image light andWherein described at least one Red absorption layer is placed between the infrared reflective device and described image sensor to subtractThe red afterimage in the described image light in described image sensor is incided into less.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×