Resources Contact Us Home
Photo-taking lens temperature compensation system

Image Number 8 for United States Patent #5679946.

A system that is mounted in a camera capable of focal point detection and that performs correction of the focal point detection data in accordance with the temperature, wherein the temperature inside the photo-taking lens barrel is measured and the focal point detection data is corrected based on the temperature data for the interior of the photo-taking lens barrel. Using this construction, because the temperature of a lens element comprising the photo-taking lens can be accurately measured even where the ambient temperature of the camera has suddenly changed, for example, appropriate correction suitable for the temperature conditions may be performed. Also disclosed is a construction in which the correction of the focal point detection data is performed based on not only the temperature data but also the focal length data for the photo-taking lens. Using this construction, appropriate correction suitable for the temperature conditions may be performed even when, for example, the focal length of the photo-taking lens has changed.

  Recently Added Patents
Rule-based stimulation program search
Method for conformal plasma immersed ion implantation assisted by atomic layer deposition
Developing device
Accelerator for a read-channel design and simulation tool
Radiation-curable ink composition, ink jet recording method, and recorded matter
System and method for burst separation and extended interleaving length
Image capturing apparatus, control method thereof, and program
  Randomly Featured Patents
Semiconductor device including shielding layer and fabrication method thereof
Quality of service management for multiple connections within a network communication system
Paper products having perforations and perforate pattern
Pressure-sensitive adhesive for applying optically functional film, optically functional film and production process for the same
Processing apparatus with functional hierarchical structure including selective operation of lower level units by higher level units
Motorcycle frame and motorcycle engineered therewith
Liquid developing unit using high density ink
Methods of modulating inflammatory cytokines in the CNS using TGF-.beta.
Expandable stinger planter