Optical Components ● Positive focal length ● Converge incident light ● Form both real and virtual images ● Very close to the form minimising spherical aberration for infinite conjugate applications These simplest form lenses have flat surface on one side and spherical surface on the other. They are widely used in telescopes, microscopes, collimators, optical transceivers, magnifiers, condenser systems and eyepieces. Upon customer’s request, lenses may be anti-reflection coated. For a required coating, please refer to the Coatings section. Surface quality Clear aperture Diameter tolerance Thickness tolerance Standard lenses have a range of focal lengths – from 25 mm to 10000 mm, and diameters – from 12.5 mm to 50.8 mm. Surface irregularity Prisms Polarizing Optics UV & IR Optics Please contact us if you can not find the lens that you need. We can provide a wide range of special focal lengths, diameters and coatings. Paraxial focal length BK7 Plano-Convex Lenses Diameter D, mm Metric English Most of the Lenses are available for fast off-the-shelf delivery. Check the availability at www.eksmaoptics.com Diameter D, Focal mm length Metric English F, mm

Please add letter M to the catalogue number for metric dimensions and letter E for English. We can supply custom cutting, edging, coating or complete fabrication if required. If you do not find what you need in our list of stock items, please send your specification or drawings for a custom quotation. Windows & Filters Housing accessories Self-Centering Lens Mounts 830-0010, 830-0020 Polarizing Optics Please add letter M to the catalogue number for metric dimensions and letter E for English. Coated Lenses Ordering Information Please choose relevant coating from anti-reflection coatings section...

Optical Components CaF2 Plano-Convex Lenses Coatings Please add letter M to the catalogue number for metric dimensions and letter E for English. Housing accessories Self-Centering Lens Mounts 830-0010, 830-0020 See page 8.46 Biconvex Lenses Prisms Polarizing Optics Biconvex lenses are all symmetrical, having equal radii on both sides. They are recommended for virtual imaging of real objects and for positive conjugate ratios from 0.2 up to 5. Outside this ratio range plano-convex lenses are usually more suitable. Biconvex lenses are used as magnifiers, objectives, some condensing systems. Since...

Please add letter M to the catalogue number for metric dimensions and letter E for English. Housing accessories Self-Centering Lens Mounts 830-0010, 830-0020 See page 8.46 Please add letter M to the catalogue number for metric dimensions and letter E for English. Coated Lenses Ordering Information Examples: 1) BK7 bi/cx lens Ø12.7 mm, F=400 mm, coated AR/AR@400-700 nm, AOI=0° Code: 111-0148 E + 3217-i0, Price: 15 + 56 EUR= 71 EUR/pc. Lens code Please choose relevant coating from anti-reflection coatings section (pages 1.5 - 1.6). The coating code and price should be added to the lens code and...

Optical Components Plano-Concave Lenses Coatings ● Have negative focal lengths ● Diverge collimated incident light ● Form only virtual images which are seen through the lens ● Reduce spherical aberration, coma and distortion at negative-infinite or near-infinite conjugate ratios ● With the concave surface facing the longest conjugate distance These lenses are thicker at the edge than in the centre and flat on one side. The plano- concave lenses are used to expand light beams or to increase focal lengths in optical systems. They are often employed for beam expansion of high peak power pulsed lasers....

Windows & Filters Example: BK7 pl/cv lens Ø12.7 mm, F=-250 mm, coated AR/AR@400-700 nm, AOI=0° Code: 112-0125 E + 3217-i0, Price: 14 + 56 EUR= 70 EUR/pc. Coating code English or Metric Dimensions. Can be omitted if not important Lens price Coating price For lenses Ø12.5 – 25.4 mm please add Ø25 coating price For lenses Ø38.1 – 50.8 mm please add Ø50 coating price Lens code Please choose relevant coating from anti-reflection coatings section (pages 1.5 - 1.6). The coating code and price should be added to the lens code and price. Polarizing Optics Adjustable Lens Mounts 830-0030 See page 8.49...

Optical Components Biconcave Lenses Coatings ● Have negative focal lengths, diverge collimated incident light ● Form only virtual images which are seen through the lens ● Minimise spherical aberration, coma and distortion at unit conjugate ratio These lenses are symmetrical, having equal radii on both sides. Biconcave lenses are often used to expand light beams or to increase focal lengths in optical systems, and are normally used in combination with other lenses. Among the many devices utilising biconcave lenses are laser beam expanders, optical character readers, viewers and projection systems....

Please add letter M to the catalogue number for metric dimensions and letter E for English. Please contact us for other size, focus or precision requirements. Windows & Filters We can supply custom cutting, edging, coating or complete fabrication if required. If you cannot find your axicons needed, please send your specification or drawings for a custom quotation. ● Can be made from most optical materials Two axicons together produce a thick-walled hollow “pipe’’ of light. Conical Lenses (Axicons) An axicon with a spherical lens produces an annular focus. Surface quality Clear aperture Diameter...

Optical Components Plano-Cylindrical Lenses Coatings ● Condense or expand light in one dimension only ● Ideal for producing line images, for scanning and projection We offer a selection of cylindrical lenses that are either planoconvex or plano-concave in form and rectangular in shape. These lenses are used to focus light to a thin line in laser scanners, spectroscopy, dye lasers, acousto-optics, optical processors and other similar applications. They are the best for circularisation of diode laser outputs, energy collection for linear detectors or for coupling to a slit input. Earlier remarks...