• Round Geometry Enables Easy Mounting and Adjustment
• Pre-Mounted and Aligned in an Engraved, Black Anodized Aluminum Ring
• Full Contact Between Mounting Cell and Retaining Rings
• Fabricated from N-BK7 Glass
• SM1 Lens Tube Compatible
• Collimates & Cirularizes the Output of a Laser Diode

Like the N-BK7 plano-concave cylindrical lens, the Ø1" negative round cylindrical lens can be used to expand light but only in one dimension. However, it has the added advantage that it is epoxied into a round cell, allowing it to be mounted in our SM1 Lens Tubes or any Ø1" Lens Mounts.

The cell is black anodized and engraved with the part number, focal length, and coating information (if applicable). The wall thickness is designed to allow full contact with the cylindrical lens when using an SM1RR retaining ring to hold the lens.

One possible application is to use the lens to convert a collimated laser source into a line generator. Alternatively, pairs of cylindrical lenses can be used for anamorphic beam shaping. When used to diverge light from a line source, the curved surface should face the source to limit the effects of aberrations.

• Material: N-BK7
• Design Wavelength: 587.6 nm
• Diameter Tolerance: +0.00/-0.10 mm
• Focal Length Tolerance: ±1%
• Surface Quality: 60-40 Scratch-Dig
• Centration: ≤3 arcmin
• Surface Flatness: λ/2
• Cylindrical Surface Power: 3λ/2
• Surface Irregularity: Plano: λ/2, Curved (Height, Length): λ, λ
• Clear Aperture: >90% of Diameter
• f_e: -200 mm
• f_b: -202 mm
• R: -103.4 mm
• t_c: 3 mm
• T: 5.84 mm
• Working Distance: -200.6
• Coating: -A
• Wavelength Range: 350 nm - 700 nm