61-6955-43 Reasonable Concave Lens φ10mm Uncoated Focal Length:  -100mm S-SLB-10-100N
Analyzer, Testing Equipment

61-6955-43 Reasonable Concave Lens φ10mm Uncoated Focal Length: -100mm S-SLB-10-100N

model: 61-6955-43
brand: SIGMAKOKI CO., LTD.

Product Description

Product Model: 61-6955-43Product Brand: SIGMAKOKI CO., […]

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Product Details

Product Model: 61-6955-43
Product Brand: SIGMAKOKI CO., LTD.

Features

  • The surface quality is one rank lower than that of a spherical concave lens (SLB-N).
  • Use for optical systems that do not require high surface quality such as lighting or observation applications.
  • Other than surface quality, the specifications are almost the same as the Spherical Concave Lens (SLB-N).
  • I recomm*** this lens unless you want to *** it for high-precision experiments with lasers.
  • There are two types, a flat concave lens with low spherical aberration and a biconcave lens with large refraction and short focal length.
  • In addition to the no-coat product, three types of lenses with anti-reflection film are available in the visible, near-infrared and infrared ranges.
  • * Spherical biconcave lenses have chromatic aberration, and the focal length dep***s on the wavelength.
  • * The transmittance of the uncoated product is about 90% due to the loss ca***d by the reflection of the front and back of the lens.
  • * The concave outer edges are chamfered.
  • * For this reason, the thickness may be smaller than the designed thickness (te).

Spec

  • [

    common specification]
  • Material: BK7
  • Design wavelength: 546.1nm
  • Refractive index: n e=1.519
  • Eccentricity: <3′
  • Coating: No coat
  • Effective diameter: S-SLB-N: 90% of outer diameter, S-SLB-B-N: 85% of outer diameter
  • Scratch - dig: 60-40
  • [Individual specification]
  • Reflective prevention film coat wavelength region: No coat
  • Outer diameter φD: φ10mm
  • Focus distance f: -100mm
  • Edge thickness te: 2.2mm
  • Center thickness tc: 2mm
  • Back focus fb: -101.3mm
  • Curvature half diameter r: 51.90mm
  • RoHS conform product

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