Reference mark coding system

Reference mark identification system for measuring instrument

Reference point talbot encoder

Reference position detecting device utilizing a plurality of pho

Reference position-detecting device for photoelectric encoder

Reference signal generation apparatus for position detector

Reference signal generation apparatus for position detector with

Reflectance measuring apparatus including a cylinder-shaped ligh

Reflected light detecting apparatus and method

Reflected light scanning method and apparatus for the detection

Reflected light sensor having dual emitters and receivers

Reflected radiance sensors for detection of reflected radiation

Reflection light barrier apparatus for recognizing both strongly

Reflection light barrier employing adjacent lenses having border

Reflection light bearer system with self-testing feature

Reflection suppression in focal plane arrays by use of...

Reflection type optical rotary encoder

Reflection type photoelectric switch for detecting the presence

Reflection-mode fiber sensing devices

Reflection-type optical sensor