Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Real-image finder optical system










Image Number 12 for United States Patent #6867917.

A real-image finder optical system includes a positive objective optical system, an erecting optical system, and a positive eyepiece optical system, thereby an object image, which is formed by the objective optical system, and is upside down and reversed from left to right, is reinverted by the erecting optical system to the proper orientation. The erecting optical system includes a plurality of reflection surfaces, at least one of which is provided along an optical path on the object side with respect to the position where the object image is formed, and at least another of which is provided along an optical path on the eyepiece side with respect to the position where the object image is formed. The eyepiece optical system includes a positive lens element having a transverse magnification of more than 1.0 provided between the object image (finder image) and the reflection surface provided on the eyepiece side with respect to the position where the object image is formed.








 
 
  Recently Added Patents
Image-processing method and program, and image-processing apparatus
Vehicle having power supply apparatus
Leadless integrated circuit packaging system and method of manufacture thereof
Automated incorporation of expert feedback into a monitoring system
Fabric care compositions comprising front-end stability agents
Electronic device assemblies
Shoe
  Randomly Featured Patents
Method and system for provisioning portable desktops
Portable waste holding tank with improved inlet valve assembly
Control apparatus and control method of on-vehicle dynamo-electric machine
Method and arrangement in connection with double spooling
Damping material and method for production thereof
Heating cooker
Process for improving the quality of urea-ammonium nitrate solution
Method and apparatus for attaching surgical suture components
Transportable decontamination unit and decontamination process
Bonding structure and fabrication thereof