AC254-030-AB 25.4 mm Dia. S-BAH11/S-TIH6 Unmounted Achromatic Doublet; EFL=30mm 400-1100nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- R1
- 20 mm
- R2
- -17.4 mm
Material 1
- Name
- S-BAH11
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6696557498333158
- λ
- 550 nm
- B1
- 1.5713886
- C1
- 0.00910807936 μm2
- B2
- 0.147869313
- C2
- 0.0402401684 μm2
- B3
- 1.28092846
- C3
- 130.399367 μm2
Material 2
- Name
- S-TIH6
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.8118489598610836
- λ
- 550 nm
- B1
- 1.77227611
- C1
- 0.0131182633 μm2
- B2
- 0.34569125
- C2
- 0.0614479619 μm2
- B3
- 2.40788501
- C3
- 200.753254 μm2
AC254-030-AB 25.4 mm Dia. S-BAH11/S-TIH6 Unmounted Achromatic Doublet; EFL=30mm 400-1100nm
The AC254-030-AB is a 25.4 mm diameter achromatic doublet lens, designed and manufactured by Thorlabs. This unmounted lens is specifically engineered for use within the 400-1100nm wavelength range, making it suitable for a wide array of optical applications.
The lens features a complex geometry, with a central thickness of 12mm and edge thickness of 9.5mm. The curvature of the lens is defined by three radii: r1 at 20mm, r2 at -17.4mm, and r3 at -93.1mm. The inner and outer radii are both zero, indicating a circular lens profile.
The lens is composed of two materials, S-BAH11 and S-TIH6, both from Ohara. These materials have been carefully selected to provide superior optical performance, particularly in terms of chromatic aberration correction. The lens is coated with a broadband anti-reflection coating, both on the front and back surfaces, ensuring high transmission and minimal loss of light.
This lens is classified as a multiplet, indicating that it is composed of multiple elements. The specific configuration of these elements contributes to the lens's overall performance, particularly in terms of its ability to bring light to a focus.
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