FGL420 Dia:25 mm GG420 Colored Glass Filter; 420nm Longpass
- Type
- Filter
- Subtype
- Color Glass
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- Cut On Frequency
- 420 nm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167817367777034
- λ
- 588 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
FGL420 Dia:25 mm GG420 Colored Glass Filter; 420nm Longpass
The FGL420 is a color glass filter developed by Thorlabs, featuring a 25 mm diameter and a thickness of 2 mm. This filter is designed with a 420 nm longpass, making it ideal for applications that require the removal of shorter wavelengths.
The FGL420 is made from n-bk7 Schott, a high-quality optical glass known for its excellent transmittance and low auto-fluorescence. This material ensures the filter provides high-quality performance and reliability.
The filter's coating is another notable feature. Both the front and back are coated with tho fgl420, a specialized coating that enhances the filter's performance and durability. This coating helps to reduce surface reflections, improving the overall transmission of the filter.
The FGL420 is shaped as a thin lens, allowing it to be easily integrated into various optical systems. It is currently in stock and available for immediate purchase through the Thorlabs website.
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