Resources Contact Us Home
Device detecting focus of a taking lens without decrease in focus detection accuracy when the auto focus area is disposed at an inclination relative to the photographic field

Image Number 12 for United States Patent #6686577.

An optical element disposed behind a main mirror and inclined relative to the optical axis is arranged at a position to correct aberration in the luminous flux generated by transmission through the main mirror.

  Recently Added Patents
Polarity switching member of dot inversion system
Unified feedback frame for supporting a plurality of feedback modes and a multiple-input multiple-output (MIMO) communication system using the unified feedback frame
Analysis device and an analysis apparatus using the analysis device
Sign language keyboard and sign language searching apparatus using the same
Headset electronics
Authoring method, authoring device and program
  Randomly Featured Patents
Simultaneous hydraulic fracturing
System and method for detecting fraudulent transactions
Trocar sleeves having a ball valve
Diamond heatsink assemblies
Process for treatment of polyethylene terephthalate, polyethylene terephthalate for molding purposes and process for preparation thereof
Signal processing for object detection system
Painter's protective device
Surgical stapling device with dissecting tip
Padlock shackle quadrangle
Optical multiplexer/demultiplexer having a broadcast port