SLM-03B-03P Microlens

[Features]
· A lens with a smaller diameter and shorter focal length than the spherical lens.
· It can be used as an illumination lens for compact laser optic systems and micro optic systems such as endoscopes.
· A plano-convex lens type with little spherical aberration and a bi-convex lens type with a short focal length and large divergence angle are available.
· Since the edge (side) has been scraped, it is relatively easy to hold and fix the lens.
· * Microlenses are single lens types, resulting in focal lengths changing with wavelength.
· * The planoconvex microlens is oriented in relation to the incident light.
· * Be sure to have parallel light incident from the convex surface.
· * When reversed, spherical aberration may deteriorate and the condensing spot may widen.
· * The lens does not have an antireflection coating and thus has loss due to reflections at the front and rear surfaces, providing a transmittance of about 90%.
[Product Specifications]
· [ Common Specifications]
· Material: LaSF9 SK2 BK7
· Design Wavelength: 587.6 nm
· Coating: Non-Coated
· Eccentricity: < 3'
· Scratch-Dig: 40-20
· [Individual Specifications]
· Lens Type: Biconvex
· Outer diameter φD: φ3 mm
· Focal distance f: 3 mm
· Back focus fb: 2.4 mm
· Rim thickness te: 1.1 mm
· Central thickness tc: 1.8 mm
· Material: SK2
· Radius of the curvature r: 3.26 mm