
Analyzer, Testing Equipment
61-6954-30 Reasonable Biconvex Lens φ5mm Uncoated Focal Length: 8mm S-SLB-05B-08P
Product Description
Product Model: 61-6954-30Product Brand: SIGMAKOKI CO., […]
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Product Details
Product Model: 61-6954-30
Product Brand: SIGMAKOKI CO., LTD.
Features
- Surface quality is one rank lower than that of Spherical Convex Lens (SLB-P).
- Can be ***d 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 Convex Lens (SLB-P).
- I recomm*** this lens unless you want to *** it for high-precision experiments with lasers.
- It is a biconvex lens that can greatly refract and shorten the 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 plano-convex lenses and spherical biconvex lenses have chromatic aberration, and the focal length dep***s on the wavelength.
- * Plano-convex lenses allow light to enter.
- * Be sure to allow parallel light to enter from the convex side.
- * Doing the reverse operation will ca*** the spherical aberration to increase, which can ca*** the focus spot to increase and can ca*** blurred images.
- * 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.
Spec
-
[
common specification]
- Material: BK7
- Design wavelength: 546.1nm
- Refractive index: n e=1.519
- Eccentricity: <3′
- Coating: No coat
- Effective diameter: 85% of the outer diameter (83% of the outer diameter φD < φ10mm)
- Scratch - dig: 60-40
- [Individual specification]
- Reflective prevention film coat wavelength region: No coat
- Outer diameter φD: φ5mm
- Focus distance f: 8mm
- Edge thickness te: 1.4mm
- Center thickness tc: 2.1mm
- Back focus fb: 7.6mm
- Curvature half diameter r: 8.30mm
- RoHS conform product
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