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Achromatic Lenses

Achromatic Lenses
Achromatic Lenses
Product Code : Achromatic Lenses
Brand Name : QUASMO
Product Description

Chromatic aberration, also known as color fringing, is a phenomenon that occurs in optics due to the difference of dispersion and refractive indexes of the glass specific materials used and the properties of the      various wavelengths transmitting through glass.

As white light passes through glass, each wavelength that comprises of this light is separated and focused at different points on a plane. Achromatic lenses use glass materials of different dispersion to compensate for this chromatic aberration and refocus the individual wavelengths of light to a common focal point.

These lenses are flexible in design, and they come in a wide array of configurations that can account for the level of correction required by the application. Achromatic lenses, such as doublets and triplets, not only correct for chromatic aberration but they can also reduce spherical aberration in some instances by introducing aspheric properties. For these reasons, Achromatic lenses are commonly used in life science imaging, surface inspection and spectroscopy applications.

 

QUASMO Optics specializes in manufacturing high precision custom Achromatic lenses according to customer’s specifications.

 

OUR ADVANTAGE

As one of the leading optics manufacturers from India, QUASMO Optics offers a large variety of custom Achromatic lenses for our customers including Achromatic Spherical and Aspherical lenses, Achromaticsinglets, doublets and triplets. Combined with one of our advanced AR coatings (covering 400-700nm, 650-1050nm, 1050-2500nm), these optimized lenses are ideal for ensuring high-resolution image quality and durability. With our in-house state-of the-art metrology and professional testing personnel, QUASMO Optics is able to provide a full range of inspection reports for full optical characterization such as surface quality, dimensions, centricity, coating transmittance/reflectance, and overall/partial surface accuracy.

 

Factory Standard – Contact us for manufacturing limit or custom specifications.

                         Shape: Singlet, Doublets or Triplets

                         Diameter Tolerance: ± 0.03mm

                         Thickness Tolerance:  ± 0.03mm

                         Radius± 0.3%

                         Focal Length Tolerance: ± 0.5%

                         Surface Quality: 20-10 Scratch-DigAfter Coating

                         Surface Flatness: λ/5 @633 nm

                         Centration: < 3 arc minutes

                         Clear Aperture: > 90% of central dimension

 

MATERIAL

Optical glass, UV fused silica (JGS1), infrared fused silica (JGS3) and calcium fluoride (CaF2), barium fluoride (BaF2) and other crystalline material

 

ACHROMATIC LENS CAPABILITIES

Specifications

Factory Standards

Manufacturing Limit

Dimension Tolerance

+/-0.03mm

+/-0.01mm

Center Thickness Tolerance

+/-0.03 mm

+/-0.02mm

Radius Tolerance

+/-0.3%

+/-0.2%

Surface Quality(S/D)

20-10

10-5

Irregularity

1/5Lambda

< 1/10Lambda

Centration(arc min)

3′

1′


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