Laser Borosilicate Glass Achromatic Lens with Black Coating

Laser Borosilicate Glass Achromatic Lens with Black Coating

An achromatic lens, also referred to as an achromat, typically consists of two optical components cemented together, usually a positive low-index (crown) element and a negative high-index (flint) element. In comparison to a singlet lens, or singlet for short, which only consists of a single piece of glass, the additional design freedom provided by using a doublet design allows for further optimization of performance. Therefore, an achromatic lens will have noticeable advantages over a comparable diameter and focal length singlet.

+ Achromatic Lenses + Parameter Diameter 3~150mm Diameter Tolerance +/-0.1mm, +/-0.05mm Thickness Tolerance ( center, edge) +/-0.1mm, +/-0.05mm Focus Length Tolerance +/-1% ~0.5% Surface Accuracy 1lambda , 1/4 lambda Surface Quality 60-40, 40-20 or better Centration 5'~1' Clear Aperture 85% ~95% Chamfer 0.1~0.3mm x 45degree Coating Accroding to customer's requirement -- What can we do for you ? Achromatic Lenses Cemented Achromatic Doublets Cemented Achromatic Triplets Achromatic Doublet Pairs Air-Spaced Achromatic Doublets Negative Achromatic Lenses Achromatic Cylindrical Lenses Aspherized Achromatic Lenses Near UV Achromatic Lenses Near-IR (NIR) Achromatic Lenses UV-to-NIR Corrected Triplets Mounted Achromatic Pairs -- +1 Cemented Achromatic Doublets Achromatic lenses consist of two optical components cemented together to form an achromatic doubled, which is computer optimized to correct for on-axis spherical and chromatic aberrations. +2 Cemented Achromatic Triplets An achromatic triplet is the simplest lens that corrects all primary chromatic aberrations. These triplets consist of a low-index center element cemented between two identical high-index outer elements and feature good on-axis and off-axis performance. +3 Achromatic Doublet Pairs Worldhawk offers Matched Achromatic Pairs for use in the visible or NIR spectral range. Matched Achromatic Pairs are ideal for image relay, NA conversion, or image magnification. +4 Air-Spaced Achromatic Doublets Worldhawk' selection of air-spaced achromatic doublets offer diffraction-limited spot size, superior aberration correction, and higher damage thresholds than traditional cemented doublets. They have been designed for use across broad wavelength ranges with minimal aberrations. +5 Negative Achromatic Lenses Consisting of two optical elements cemented together, negative achromats are corrected for color and on-axis aberrations. Used predominantly as Barlow lenses to extend focal lengths, they are often combined with positive achromatic mirror systems and imaging lenses. We can provide the professional customized service, welcome to send inquiry and we will reply within 24 hours.

Product application introduction:
◇Powell Lenses, also called Laser Line Generator Lens, provide an even distribution of energy along the length of the entire line; In general, we provide 9mm and 6mm powell lens, Fan angle from 10 degrees to 90 degrees, beam diameter from 0.8-5mm, H-K9L powell lens and N-SF6 powell lens; Our powell lens divide into two accuracy, High precision powell lens and Standard Technology powell lens, Laser line uniformity and distribution of energy of High precision powell lens is much even than Standard Technology powell lens.
◇Optical Mirrors in a multitude of reflective coating options, including Protected Aluminum mirror, Enhanced Aluminum mirror, Protected Silver mirror, Protected Gold mirror, or Dielectric mirror.
◇Optical Lenses are optical components designed to focus or diverge light. A Plano Convex Lens or Double Convex lens causes light to focus to a point, while a Plano Concave Lens or Double Concave Lens causes the light traveling through the lens to diverge. Achromatic Lens are ideal for applications requiring color correction, while Aspheric Lens are designed to correct spherical aberration. Germanium Lens, Silicon Lens, or ZnSe lens are ideal for transmitting the Infrared (IR) spectrum, while Fused Silica Lens is well suited for the Ultraviolet (UV).

◇Doublets can come in many forms, though most commercial doublets are achromats, which are optimized to reduce chromatic aberration while also reducing spherical aberration and other optical aberrations. The lenses are made from glasses with different refractive indices and different amounts of dispersion. Often one element is made from crown glass and the other from flint glass. This combination produces a better image than a simple lens. Some Trilobites, which are now extinct, had natural doublet lenses in their eyes. Apochromats can also be made as doublets.

◇Doublets can be air-spaced, cemented, or "oiled". Oiled doublets hold the optical fluid in place with surface tension alone. Elements may be cemented by oil or a soft cement in the case when the differential thermal expansion of crown and flint glasses causes hard or cured cements to warp or fracture. With larger elements, it is ideal to separate the lenses using a spacer. In a hard-cemented doublet, the lenses are held together by an adhesive with mechanical strength, such as optically transparent epoxy. Some doublets use no adhesive between the lenses, relying on external fixturing to hold them together, either because the optical design requires a gap or because thermal expansion differences between the two lenses won't allow cementing. These are called "un-cemented", "air-spaced" or "broken contact" doublets. A sub-type of air-spaced doublet is the dialyte, a design where elements are widely spaced to save on the amount of glass used or where the elements cannot be cemented because they have strongly dissimilar curvatures.

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