TRS254-040-A 25.4 mm Dia. N-F2/N-K5 Unmounted Steinheil Achromatic Triplet; EFL=40mm 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- R1
- 28.8 mm
- R2
- 13.3 mm
Material 1
- Name
- N-F2
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6236565068581217
- λ
- 550 nm
- B1
- 1.39757037
- C1
- 0.00995906143 μm2
- B2
- 0.159201403
- C2
- 0.0546931752 μm2
- B3
- 1.2686543
- C3
- 119.248346 μm2
Material 2
- Name
- N-K5
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5243648836873236
- λ
- 550 nm
- B1
- 1.08511833
- C1
- 0.00661099503 μm2
- B2
- 0.199562005
- C2
- 0.024110866 μm2
- B3
- 0.930511663
- C3
- 111.982777 μm2
Material 3
- Name
- N-F2
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6236565068581217
- λ
- 550 nm
- B1
- 1.39757037
- C1
- 0.00995906143 μm2
- B2
- 0.159201403
- C2
- 0.0546931752 μm2
- B3
- 1.2686543
- C3
- 119.248346 μm2
TRS254-040-A 25.4 mm Dia. N-F2/N-K5 Unmounted Steinheil Achromatic Triplet; EFL=40mm 400-700nm
The TRS254-040-A is a high-quality Steinheil Achromatic Triplet lens, unmounted and sourced from the renowned optical vendor, Thorlabs. This lens, with a catalog number TRS254-040-A, is designed for use within the 400-700nm wavelength range, making it suitable for a wide array of optical applications.
The lens boasts a base shape of a circle, with a diameter of 25.4mm, and an edge thickness of 24.4mm. The inner and outer radii are 0mm, indicating a uniform curvature. The radii of the three lens components are r1=28.8mm, r2=13.3mm, and r3=-13.3mm, with corresponding center thicknesses of 5.2mm, 19.8mm, and 5.2mm.
The lens is composed of three materials: N-F2 Schott, N-K5 Schott, and N-F2 Schott. This specific combination of materials and design ensures minimal chromatic aberration, a key feature of the Steinheil Achromatic Triplet.
The lens is coated on both the front and back with a specialized coating, denoted as 'tho trs254-040-a'. This coating enhances the lens's performance and durability, contributing to its overall quality and suitability for various applications.
