Frequently Asked Questions

An optical glass long pass filter is a type of filter used for selecting or filtrating a specific wave band in optical instruments.

Optical glass long pass filters are widely used in industrial measurement, environment protection, and many other applications.

Yes, we have many types of standard filters in stock and can send samples to you for test very fast.

Yes, the dimension and coating index can be customized according to customer requirements.

We provide short filter, long pass filter, band pass filter, etc.

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