Linear Scales

Precision scales complement optical reflective encoder read heads.

VC America Electronics uses fine feature sub micron photolithography to create accurate and repeatable patterns. The process is capable of 2µm period (1µm reflective +1µm clear or anti-reflective) when needed. Common track periods between 20µm and 100µm benefit from the precise photolithography.

Production scales match the encoder, physical, environmental, and performance requirements. For applications requiring best accuracies over long lengths or temperature extremes, glass compositions with very low CTE are used.

We offer standard scales for rapid evaluation and production and we also manufacture to custom specifications for unique pattern, material, and dimension requirements.

VC America Electronics processes coatings for specific wavelengths (red, infrared, ultraviolet, etc.) to match requirements. The majority of linear scale applications work well with soda-lime glass and reflective chrome metal pattern on top and anti-reflective chrome backside.