
Analyzer, Testing Equipment
61-6901-76 Plano Concave Lenses (Synthetic F***d Silica) φ10mm Focal Length -15mm SLSQ-10-15N
Product Description
Product Model: 61-6901-76Product Brand: SIGMAKOKI CO., […]
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Product Details
Product Model: 61-6901-76
Product Brand: SIGMAKOKI CO., LTD.
Features
- With a simple shape, collimated laser light can be spread.
- It can be ***d in combination with a convex lens to increase the beam diameter or the illumination area.
- It is a lens made of synthetic quartz that can be ***d with ultraviolet light below 350 nm and has high laser resistance.
- It can be selected according to your specifications from a wide range of variations, subdivided by outer diameter size and focal length.
- * The concave lens cannot collect light or tie a real image by itself.
- * Use in combination with convex lenses.
- * Spherical flat concave lenses have chromatic aberration, and the focal length dep***s on the wavelength.
- * Flat concave lenses allow light to enter.
- * Allow parallel light to enter from the concave side.
- * Doing the reverse operation will ca*** spherical aberration to increase, which may result in poor optical performance of the optical system.
- * When a high-energy pulsed laser is ***d, there is a possibility that the reflected light on the concave surface will ca*** a condensation point to be connected to the optical path, causing a spark. When using with a pulsed laser, make sure that the laser beam is incident from the plane side.
Spec
-
[
common specification]
- Material: Synthetic quartz
- Design wavelength: 546.1nm
- Refractive index: n e=1.460
- Coating: No coat
- Effective diameter: 90% of the outer diameter
- Scratch - dig: 20-10
- [Individual specification]
- Outer diameter φD: φ10mm
- Focus distance f: ?15mm
- Edge thickness te: 4.1mm
- Center thickness tc: 2mm
- Back focus fb: ?16.4mm
- Curvature half diameter r: 6.9mm
- Eccentricity: <1′
- RoHS conform product
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