Reasonable Concave Lens BK7 30mm Diameter -60mm Focal Length 400 - 700nm
S-SLB-30-60NM
This lower cost product offering of Concave lenses has only minimal reduction in quality and is perfect for most applications. It can be used in an optical systems such as observation or lighting applications when the higher surface quality Concave Lens (SLB-N) is not required.
◦It has the same specification of Concave Lens (SLB-N) except the surface quality and is ideal for experiments and applications where high-precision is not required.
◦There are two types of lens offer, a Plano concave lens with low spherical aberration and a biconcave lens that is used to shorten the focal length.
◦In addition to uncoated products, there are three types of anti-reflection coating for visible, near-infrared, and infrared.
◦There are two types of lens offer, a Plano concave lens with low spherical aberration and a biconcave lens that is used to shorten the focal length.
◦In addition to uncoated products, there are three types of anti-reflection coating for visible, near-infrared, and infrared.
| Name | Reasonable Concave Lens BK7 30mm Diameter -60mm Focal Length 400 - 700nm |
|---|---|
| Weight | 0.0500kgs |
| Standard Coatings Available | No |
| Guide | - |
| Remark | - |
| Attention |
|
| Diameter φD | 30mm |
| Focal length | 60mm |
| Material | BK7 |
| Design Wavelength | 546.1nm |
| Refractive index n<sub>e</sub> | 1.519 |
| Centration | ＜3′ |
| Coating | Broadband Multilayer antireflection coating (400 - 700nm) |
| Transmmittance | > Average 99% |
| Laser Damage Threshold | 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz) |
| Clear aperture | 85% of the diameter |
| Surface Quality (Scratch-Dig) | 60-40 |
| Wavelength range of Antireflection Coating | 400 - 700nm |
| Diameter φD | φ30mm |
| Focal length f | −60mm |
| Edge thickness te | 5.9mm |
| Center thickness tc | 2mm |
| Back focal length fb | −61.3mm |
| Radius of curvature r | 31.14mm |
In stock
SKU
S-SLB-30-60NM
€38.70
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This lower cost product offering of Concave lenses has only minimal reduction in quality and is perfect for most applications. It can be used in an optical systems such as observation or lighting applications when the higher surface quality Concave Lens (SLB-N) is not required.