Plano Convex Lens 25.4mm Diameter 90mm Focal Length 750 - 1550nm

SLB-25.4-90PIR2

These are simple lenses having a flat surface on one side and a spherical surface on the other. They are also very close to the form which minimizes spherical aberration for infinite conjugate applications. Our glass lenses are made from the highest grade of optical glass. We have a vast range of different diameters and focal lengths. The lenses listed here are standards. Please call if you do not see the lens you need. We have both larger and smaller lenses and many other diameters to choose from. However, we do try to keep these standards available for quick delivery.
◦There are three types of plano convex lenses available; BK7 for use in visible range to infrared wavelength range.
◦BK7 lenses are also available with three types of anti-reflection coatings, visible wavelength range, in the near-infrared range and in the infrared range.
◦Our lenses are listed by outside diameter and focal length to assist your selection according to required specifications.
More Information
Name Plano Convex Lens 25.4mm Diameter 90mm Focal Length 750 - 1550nm
Weight 0.0500kgs
Standard Coatings Available No
Guide
  • Lenses are available in a large selection and in custom sizes and focal lengths.
  • In addition to our standard coating we offer custom anti-reflective coating at specific wavelengths.
  • Achromatic lenses (DLB) which are chromatic aberration correction are also available.
  • WEB Reference Catalog Code/W3075
Remark -
Attention
  • Plano convex lenses have a positive focal length and can be used in focusing and collimating applications.
  • The plano convex lens has chromatic aberration, and the focal length will vary depending on the wavelength. Please check the “wavelength characteristic of the focal length data” on “Technical Data” for the focal lengths of each wavelength.
  • Transmissions losses due to reflection off the front and rear surfaces of the lens can be minimized by coating the surfaces. Consult our Sales Division for anti-reflection coatings suitable for your application.
Diameter φD 25.4mm
Focal length 90mm
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ25.4mm
Focal length f 90mm
Edge thickness te 1.9mm
Center thickness tc 3.7mm
Back focal length fb 87.6mm
Radius of curvature r 46.71mm
Centration <1′
In stock
SKU
SLB-25.4-90PIR2
$60.00

Delivery in : in stock

These are simple lenses having a flat surface on one side and a spherical surface on the other. They are also very close to the form which minimizes spherical aberration for infinite conjugate applications. Our glass lenses are made from the highest grade of optical glass. We have a vast range of different diameters and focal lengths. The lenses listed here are standards. Please call if you do not see the lens you need. We have both larger and smaller lenses and many other diameters to choose from. However, we do try to keep these standards available for quick delivery.

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