Resources Contact Us Home
Reflection type encoder, scale thereof and method for producing scale

Image Number 8 for United States Patent #8127993.

A reflection type encoder, which receives a plurality of light-receiving signals from a single scale, includes a light source, a scale having a plurality of patterns formed thereon to which light is irradiated from the light source, and a light-receiving element for receiving light reflected from each of the plurality of patterns, wherein a plurality of patterns each having different thicknesses are formed on a single track of the scale by using a dielectric substance, light of a plurality of wavelengths each having different brightnesses in accordance with differences in the thickness of the dielectric substance is irradiated from the light source, and a light-receiving signal is obtained for the respective thicknesses of the dielectric substance. Therefore, the scale can be downsized by overlapping a plurality of patterns on the same track.

  Recently Added Patents
Systems, computer programs, and methods for controlling costs of a healthcare practice
Electrode tab for secondary battery and secondary battery using the same
Rotating-body electrification mechanism, image carrier unit, process cartridge, image forming apparatus, and method for electrifying image carrier unit
Remotely provisioned wireless proxy
Cationic polymers for antimicrobial applications and delivery of bioactive materials
Fuser member
Methods and system for displaying segmented images
  Randomly Featured Patents
Log dispenser for fireplace
High dielectric micro-trough line filter
Thermal print head control for printing serial bar codes
Optical fibre assembly for transmitting high energy laser radiation
Guitar pick holder
Wall and/or projection board
Mechanism for generating vibrations for a ground compacting machine
Method of conducting a sales transaction using a random access and random load dispensing unit
Film composite and applications thereof to tires
Voltage regulating system for vehicle including alternator