
Analyzer, Testing Equipment
61-6949-42 Fresnel Lens Focal Length 5mm FRL-50S-05P
Product Description
Product Model: 61-6949-42Product Brand: SIGMAKOKI CO., […]
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Product Details
Product Model: 61-6949-42
Product Brand: SIGMAKOKI CO., LTD.
Features
- Thick, short-focal length lenses have been made into step structures, and have been made into thin plates with the characteristics of lenses.
- Can be ***d as a substitute for lenses for loupes or LED lighting.
- Since it is directly processed into 2 mm thick acrylic plate, it is hard to deform and the performance is stable.
- The focal length is available in 4 types from 5 mm to 20 mm.
- Compared to lenses with the same focal length, they are lighter and do not pop out of the holder.
- * The Fresnel lens has a direction. The machined surface corresponds to a convex surface.
- * When a Fresnel lens is ***d as a laser, diffracted light is generated in the step structure, so some light also leaks around the condensing spot.
- * The lens characteristics can be obtained in the range of φ50 mm, but the accuracy of the focal length cannot be guaranteed outside the effective diameter range.
- * If the machined surface of the Fresnel lens is rubbed strongly, the performance may be deteriorated.
- * Do not touch the machined surface directly.
- * When exposed to high temperature of 80°C or higher, it will deform and the performance will deteriorate significantly.
Spec
-
[
common specification]
- Material: Acrylic CLAREX (CLAREX is a registered trademark of Nitto Jushi Kogyo Co., Ltd.)
- Refractive index n d: 1.49
- Focal distance tolerance: ±10% of the distance focus (within effective diameters)
- [Individual specification]
- Focal length: 5mm
- Prism pitch: 0.05mm
- Effective diameter: φ10mm
- RoHS conform product
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