Short Distance High Precision Photoelectric Sensor

Hello Everyone,

I need help finding a photoelectric sensor for my capstone project. Me and my group are building an alignment system for a tension/compression machine. The base and crosshead will be aligned parallel to each other, so I am trying to find a photoelectric sensor that can meet the following requirements:

Shooting distance somewhere around: 1m
Resolution/precision: 0.1mm
Price: <$450

If any one has any suggestions of a sensor that meets those requirments and can send me the information I would greatly appreciate it.

Thank you.

Some suggestions: Banner Engineering, Allen-Bradley/Rockwell, SICK, Cognex.

It may be tough meeting your price point.