Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Case for camera
Signal transfer apparatus
Systems and related methods of user-guided searching
Method and system for delivering and executing virtual container on logical partition of target computing device
Semiconductor device
Method and system for monitoring service quality in a mobile node
Liquid crystal display device
  Randomly Featured Patents
Method and apparatus for adjusting associated photographic copying and developing machines
Solid-state image sensor device with pixel array structure of interline transfer CCD image sensor
Series-resonant ballast having overload control
Corrugated resin pipe
Computer enclosure with power supply bracket
Differential pin diode attenuator
Toy electronic domino train head
Storage unit
Passageway valve for toilet with two flush modalities
Vehicle luggage carrier