Made from BK7 material, which has transparent range from 330-2100nm. The refractive index is 1.5168 at 587.6nm. The BK7 window has good performance over visible and near IR spectrum for most application.
Achromatic Waveplate Achromatic Waveplates(Retarders), AWP is composed of one piece of Crystal Quartz and one piece of Magnesium Fluoride, MgF2.
Barium fluoride (BaF2) shows good optical transmission over UV-IR windows in 0.15μm~12.5μm.
MgF2 windows are used in the UV, visible and IR ranges, with approximately 94% transmission from 200 - 1000 nm, and approximately 95% transmission from 1-6µm
CaF2 has transparent range from 170-7800nm. The refractive index is 1.399 at 5000nm. 1. Low absorption coefficient 2. High damage threshold, 3. Low Dispersion (with an Abbe Number of 95) 4. Low fluorescence 5. Excellent water, chemical, and heat resistance
Positive meniscus lenses is convex-concave lens thicker at the center than at the edges, which frequently used for beam focusing applications.
Negative meniscus lenses is convex-concave lens thinner at the center than edges, which frequently used for beam expanding applications.
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Positive meniscus lenses and Negative meniscus lenses
Positive meniscus lenses is convex-concave lens thicker at the center than at the edges. They are used to minimize spherical aberration. When used in combination with another lens, it’s will shorten the focal length, and increase the NA of system.
1. Frequently Used for Beam Focusing Applications
2. Minimizes the Increase in Spherical Aberrations for Multi-Element Systems
Negative meniscus lenses is convex-concave lens thinner at the center than edges. They increase the divergence of the beam without introducing any significant spherical aberration. When used in combination with another lens, they will increase the focal length, and decrease the NA of the system.
1. Frequently Used for Beam Expanding Applications
2. Minimizes the Increase in Spherical Aberrations for Multi-Element Systems
Specification:
Material:
Grade A optical glass or Fused Silica
Dimension Tolerance:
±0.1mm(Standard), ±0.05mm(High Precision)
Center Thickness Tolerance:
±0.1mm(Standard), ±0.05mm(High Precision)
Paraxial Focal Length:
±2%
Surface quality:
60/40(Standard), 20/10(High Precision)
Clear Aperture:
>85%
Surface Figure:
λ/2(Standard), λ/4(High Precision) @633nm
Centration:
3 arc minutes
Bevel:
<0.25mm×45°
Coating:
Upon requirement
Note for Spherical Lens:
a. Other optical glass materials from Schott, Ohara, Hoya or Chinese CDGM, UVFS from Heraeus, Corning, Germanium, Silicon, ZnSe, ZnS, CaF2, Sapphire are also available upon request .
b. Custom-made Spherical Lenses at any size from diameter 1.0 to 300mm are available upon request.
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Typical Sizes | |||||||
Item No. | Φ(mm) | f(mm) | R1(mm) | R2(mm) | Tc(mm) | Te(mm) | Fb(mm) |
Material | N-BK7 | ||||||
MNP201 | 25.4 | 100 | 33.42 | 89.95 | 4 | 2.39 | 96.01 |
MNP202 | 25.4 | 150 | 42.36 | 89.95 | 4 | 2.95 | 145.2 |
MNP203 | 25.4 | 200 | 48.75 | 89.95 | 3.5 | 2.72 | 194.51 |
MNP204 | 25.4 | 250 | 83.95 | 235.5 | 3.5 | 2.88 | 245.97 |
MNP205 | 25.4 | 300 | 94.19 | 235.5 | 3.5 | 2.98 | 296.27 |
MNP206 | 25.4 | 400 | 110.92 | 235.5 | 3.5 | 3.11 | 396.06 |
MNP207 | 25.4 | 500 | 124.17 | 235.5 | 3.5 | 3.19 | 496.16 |
MNP208 | 25.4 | 1000 | 278.34 | 600 | 3.5 | 3.3 | 993.7 |
MNN201 | 25.4 | -100 | 89.95 | 32.51 | 3 | 4.68 | -98.79 |
MNN202 | 25.4 | -150 | 89.95 | 41.21 | 3 | 4.11 | -148.06 |
MNN203 | 25.4 | -200 | 89.95 | 47.64 | 3 | 3.82 | -197.82 |
MNN204 | 25.4 | -250 | 235.5 | 83.18 | 3.5 | 4.13 | -248.62 |
MNN205 | 25.4 | -300 | 235.5 | 93.33 | 3.5 | 4.03 | -299.04 |
MNN206 | 25.4 | -400 | 235.5 | 109.65 | 3.5 | 3.9 | -397.33 |
MNN207 | 25.4 | -500 | 235.5 | 122.74 | 3.5 | 3.82 | -496.94 |
MNN208 | 25.4 | -1000 | 600 | 277.16 | 3 | 3.1 | -995.3 |
KTP crystal is mostly used as nonlinear crystals for frequency doubling of solid-state Nd:YAG crystal or Nd:YVO4 crystal laser, as it has large nonlinear optical coefficients, wide angular bandwidth and small walk-off angle, broad temperature and spectral bandwidth.
Precision Aspheric Lenses Collimate or Focus Light with a Single Element Reduce spherical aberration Reduce overall system weight
Achromatic Lenses (Doublets) VIS 0° and VIS-NIR coated achromats are also available Correct for on-axis spherical and chromatic aberrations Custom Achromatic Lenses Available
CaF2 has transparent range from 170-7800nm. The refractive index is 1.399 at 5000nm. 1. Low absorption coefficient 2. High damage threshold, 3. Low Dispersion (with an Abbe Number of 95) 4. Low fluorescence 5. Excellent water, chemical, and heat resistance
Selective Absorption Colored Glass Filters This part of the glasses can be divided into 14 kinds and 78 types based on the color and application in this catalogue.
Neutral Colored Glass Filters are named based on the average transmissivity characteristics in 400nm to 700nm wavelength with 2mm thick For example ZAB70 means 70%.
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