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69-872 12.5 mm Dia. Dichroic Longpass Filter; t=1.05mm 800nm

69-872 12.5 mm Dia. Dichroic Longpass Filter; t=1.05mm 800nm

Type
Filter
Subtype
Dichroic Filter
Brand
Edmund Optics
Product webpage
Edmund Optics products in the 3DOptix catalog

Properties

Shape
Circular
Diameter
12.5 mm
Cut Off Frequency
Cut On Frequency
800 nm

Material

Name
UVFS
Dispersion Equation
Sellmeier
n (λ)
1.458448271212196
λ
588 nm
B1
0.6961663
C1
0.004679148 μm2
B2
0.4079426
C2
0.013512063 μm2
B3
0.8974794
C3
97.93400254 μm2

69-872 12.5 mm Dia. Dichroic Longpass Filter; t=1.05mm 800nm

The 69-872 is a Dichroic Longpass Filter, 12.5 mm in diameter and 1.05 mm thick, available from Edmund Optics. This filter is designed to transmit light at wavelengths longer than 800 nm while reflecting shorter wavelengths.

The filter's coating, denoted as 'edm 69-872' on both the front and back surfaces, is specifically designed to achieve this longpass characteristic. The filter's geometry, with a diameter of 12.5 mm and a thickness of 1.05 mm, is optimized for use in a variety of optical systems.

This filter is categorized as a Thin Lens, suggesting it may have some focusing or diverging properties, although the specific optical power is not provided in the item data. The filter is made from UVFS Mal-1965, a material with excellent optical properties in the ultraviolet, visible, and near-infrared regions of the spectrum.

The 69-872 filter is currently in stock and can be purchased directly from the Edmund Optics website. For more detailed specifications and performance data, please refer to the product page linked below.

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