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