Subscribe to Blog via Email

Enter your email address to subscribe to this blog and receive LIVE NEWS AND RUMORS IN YOUR EMAIL BOX

Join 594 other subscribers

Download Our Android Appthenewcamera-app
NEWS News about new camera
Hot at New Camera Hot Picks by New Camera

Camera Rumors List of all latest Camera Rumors on Web.
Canon Rumors Latest Canon Rumors.
Nikon Rumors Latest Nikon Rumors.
Sony Rumors Latest Sony Rumors.

Sample Images Click here to see New Camera Sample Images.
Sample Video Click here to see New Camera Sample Video.
Firmware Update

Ricoh Patent - IR Sensor For Accurate Auto Focus

Ricoh-Patent-sensor-imagePentax / Ricoh filed a patent to correct focus shift caused by infrared light. In the patent we can clearly see that Rioch is working on 2nd IR (infrared)  AF (Auto Focus) Sensor for correcting the Focus shift when the Phase AF sensor fails to do the correct Job in absence of visible light (In a situation when only IF is present).

Description, self-interpretation of the patent literature

  • Patent Publication No. 2015-172640
    • Published 2015.10.1
    • Filing date 2014.3.1
  • Ricoh patents
    • AF sensor has a spectral sensitivity in the visible light to infrared light
    • AE sensor has a spectral sensitivity in the visible light
    • IR sensor has a spectral sensitivity characteristics to infrared light
    • Based on the signal ratio of the AE sensor and the IR sensor, to correct the focal shift due to chromatic aberration of infrared light

See more Ricoh Patent

source – egami

Leave a Reply




You can use these HTML tags

<a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>