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
Vehicle fender
Device and method for quantizing and inverse quantizing LPC filters in a super-frame
Preparation and its use of derivatization reagent for detecting L-carnitine or D-carnitine
Control method and allocation structure for flash memory device
Illuminating device
Nucleic acids for cloning and expressing multiprotein complexes
Pharmaceutical composition comprising gabapentin or an analogue thereof and an .alpha.-aminoamide and its analgesic use
  Randomly Featured Patents
High purity lipopeptides
Acoustic logging tool having programmable source waveforms
Decoding apparatus for digital signal
Three-dimensional technique for improving the EMC characteristics of a printed circuit board
CVD of PtRh with good adhesion and morphology
Microcellular polymer foams and method for their production
Device and method for decoding data streams from storage media
Modular rail for roof and windshield
Pyridinium-Betain compounds for use as taste modulators