Colored Glass Filters

Colored Glass Filters

Colored glass filters are unique in their ability to transmit a very broad band of light. The long

wave pass type, often used as order/wavelength sorting filters, transmit the longer wavelengths

and absorb the shorter wavelengths. The bandpass type, useful for enhancing the signalto-

noise ratio of illumination systems, transmit a broad band of energy while blocking the

shorter and longer wavelengths. As with all optical components, colored glass filters should

not be exposed to high temperatures or sharp temperature changes.

Applications:

• Medical Devices
• Machine Vision
• Astronomy
• Electronic Instrumentation
• Calibration

General Specifications

Optical Thickness: 3mm ±0.5mm

Mechanical Thickness:                             Add 0.8mm for ring mount

Size Tolerance:                                        +0.00/-0.25mm

Surface Quality:                                       80/50 per MIL-M-13508

Max. Operating Temperature:                  +100°C

Transmitted Wavefront (TWF):                1/4 wave per inch

Parallelism:                                              30 arc seconds or better

Spectral Data:                                          Stated as internal transmittance

Mechanical:                                             Mounted (except for 165mm sq.)

Optional:                                                  Mounted in threaded ring - see pg 60 for thread sizes

Note: Corners are cropped on all 165mm sq. parts unless otherwise requested.