69-872 12.5 mm Dia. Dichroic Longpass Filter; t=1.05mm 800nm
- Type
- Filter
- Subtype
- Dichroic Filter
- Brand
- Edmund Optics
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.