Custom Bandpass Filters

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.15 to .8nm bandwidth	2nm bandwidth	10nm bandwidth
1.0nm bandwidth	3.0nm bandwidth	20nm bandwidth
1.5nm bandwidth	5.0nm bandwidth	40 to 80nm bandwidth

Andover Corporation specializes in the custom, and many times state-of-the-art, filter and coating market. Our extensive list of accomplishments and long-standing reputation for quality and on-time deliveries makes Andover the best choice for custom filters and coatings. Our engineering staff is highly experienced in the use and application of interference filters and coatings and stands ready to assist you in any possible way. The following listing is a guide to our capabilities in custom bandpass filters and although it is quite extensive, it is by no means all-inclusive. Please contact one of our technical sales representatives for information regarding the availability of any item that you do not see listed here.

General Specifications

Diameter tolerance:

+0/-.25mm

Usable aperture:

Size

Aperture

12.5mm Ø

9.0mm Ø

25.0mm Ø

21.0mm Ø

50.0mm Ø

45.0mm Ø

Surface quality:

80-50 (Per MIL-O-13830)

Out-of-band blocking:

1 x 10-4 avg. from X-ray to specified range

Specification temperature:

+23°C, or customer specified

Maximum survival
temperature range:

CW/L 214 to 380nm:	-50°C to +50°C
CW/L 380.1 to 1550nm:	-50°C to +70°C

Humidity resistance:

Per MIL-STD-810C, Method 507 procedure 1,
modified to 7 cycles for 25 and 50mm filters, 5 cycles for 12.5mm filters.

Angle sensitivity:

See equation


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