Finding a reliable optical linear encoder manufacturer involves careful research and evaluation. Here are some steps you can take to identify and choose a reputable manufacturer:

Understand Your Requirements
Before you begin your search, clearly define what you need in an optical linear encoder. Consider the following factors:

Accuracy and Resolution: Determine the precision level required for your application.
Environment: Consider the operating environment (e.g., temperature, humidity, vibration) and ensure the encoder can withstand these conditions.