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keaoyiqi@163.com
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No. 124, BuBuGao Avenue, Wusha Management Zone, Chang'an, Dongguan City, Guangdong Province
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Dongguan Ke'ao Precision Instrument Co., Ltd
NIR objective lens
NegotiableUpdate on 12/05
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Overview
High NA infinite conjugate objective for femtosecond laser (770790nm) or YAG laser (1064nm) processing
Product Details
Femtosecond laser（770~790nm）OrYAGLaser（1064nm）High processing requirementsNAInfinite conjugate objective lens.
Due to the correction of visible spectral aberration in the design, the machined surface can be observed coaxially with the laser beam.
◆Working distance of objective lens（WD）The length and curvature of the field have also been corrected, and natural and clear observation images can be obtained at the edge of the field of view.
◆It can be used for coaxial observation systems or laser guided optical systems, and is an infinitely far corrected objective lens.
◆It can also be used for observing infrared light.
◆Near infrared flat field apochromatic objective lensHR50XComes with protective glass components (glass thickness)1.8mm）. It can protect the objective lens from the influence of chips during processing. Moreover, it can be easily replaced.◦This mirror can also be used for visible light（532nm）Pulse laser.532nmThe laser damage threshold at wavelength (reference value) is0.1J/cm2. (Pulse Width)10ns, repetition frequency20Hz）
Near infrared flat field semi complex achromatic objective lens20X Near infrared flat field semi complex achromatic objective lens50X
Near infrared flat field apochromatic objective lens20X Near infrared flat field apochromatic objective lens50X
Near infrared flat field apochromatic objective lensHR 50X
|
specifications |
Numerical Aperture N.A. |
work distance WD(mm) |
resolution R(μm) |
depth of focus ±▽(μm) |
Transmittance （nm) |
Achromatic wavelength |
|
Near infrared flat field semi complex achromatic objective lens20X |
0.29 |
31 |
1 |
3.5 |
450-700>70%,770-790>90% |
780nm |
|
Near infrared flat field semi complex achromatic objective lens50X |
0.42 |
20.1 |
0.7 |
1.6 |
450-700>70%,770-790>90% |
780nm |
|
Near infrared flat field apochromatic objective lens20X |
0.45 |
16.7 |
0.61 |
1.36 |
450-700>70%,770-790>90% |
780nm |
|
Near infrared flat field apochromatic objective lens50X |
0.8 |
3.34 |
0.34 |
0.43 |
450-700>70%,770-790>90% |
780nm |
|
Near infrared flat field apochromatic objective lensHR50X |
0.67 |
10 |
0.4 |
0.6 |
450-700>70%,770-790>90% |
780nm |
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