NIR Achromatic Doublets

DL-PNIR

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DL-PNIR

By bonding two lenses with wavelength dispersion of different refractive index the resulting component will provide reduced spherical aberration and chromatic aberration than that of a single spherical lens. These achromatic lenses can be used as a focusing lens for YAG laser (1064nm) or LD of the near-infrared.

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DL-15-20PNIR

15mm

19.9mm

6-12 weeks

$128.00

Material	N-LAK22, SF6
Design wavelength	700nm, 880nm, 1100nm
Coating	Multi-layer anti-reflection coating (700 – 1550nm)
Cement	Ultraviolet Hardened Adhesive
Laser Damage Threshold	0.3J/cm²
Surface Quality (Scratch-Dig)	40-20
Diameter φD	φ15mm
Focal length f	19.9mm
Edge thickness te	6.6mm
Center thickness tc	9.5mm
Back focal length fb	14.7mm
Centration	＜3′

details

DL-15-50PNIR

15mm

50.2mm

2 weeks

$128.00

Material	N-LAK22, SF6
Design wavelength	700nm, 880nm, 1100nm
Coating	Multi-layer anti-reflection coating (700 – 1550nm)
Cement	Ultraviolet Hardened Adhesive
Laser Damage Threshold	0.3J/cm²
Surface Quality (Scratch-Dig)	40-20
Diameter φD	φ15mm
Focal length f	50.2mm
Edge thickness te	4.9mm
Center thickness tc	5.9mm
Back focal length fb	46.8mm
Centration	＜3′

details

DL-25-50PNIR

25mm

50.2mm

in stock

$138.00

Material	N-LAK22, SF6
Design wavelength	700nm, 880nm, 1100nm
Coating	Multi-layer anti-reflection coating (700 – 1550nm)
Cement	Ultraviolet Hardened Adhesive
Laser Damage Threshold	0.3J/cm²
Surface Quality (Scratch-Dig)	40-20
Diameter φD	φ25mm
Focal length f	50.2mm
Edge thickness te	8.5mm
Center thickness tc	11.6mm
Back focal length fb	43.8mm
Centration	＜3′

details

DL-15-25PNIR

15mm

25mm

6-12 weeks

$128.00

Material	N-LAK22, SF6
Design wavelength	700nm, 880nm, 1100nm
Coating	Multi-layer anti-reflection coating (700 – 1550nm)
Cement	Ultraviolet Hardened Adhesive
Laser Damage Threshold	0.3J/cm²
Surface Quality (Scratch-Dig)	40-20
Diameter φD	φ15mm
Focal length f	25mm
Edge thickness te	5.8mm
Center thickness tc	8.1mm
Back focal length fb	20.6mm
Centration	＜3′

details

DL-25-30PNIR

25mm

30mm

6-12 weeks

$138.00

Material	N-LAK22, SF6
Design wavelength	700nm, 880nm, 1100nm
Coating	Multi-layer anti-reflection coating (700 – 1550nm)
Cement	Ultraviolet Hardened Adhesive
Laser Damage Threshold	0.3J/cm²
Surface Quality (Scratch-Dig)	40-20
Diameter φD	φ25mm
Focal length f	30mm
Edge thickness te	10.8mm
Center thickness tc	16.3mm
Back focal length fb	21.4mm
Centration	＜3′

details

DL-25-100PNIR

25mm

100.4mm

6-12 weeks

$138.00

Material	N-LAK22, SF6
Design wavelength	700nm, 880nm, 1100nm
Coating	Multi-layer anti-reflection coating (700 – 1550nm)
Cement	Ultraviolet Hardened Adhesive
Laser Damage Threshold	0.3J/cm²
Surface Quality (Scratch-Dig)	40-20
Diameter φD	φ25mm
Focal length f	100.4mm
Edge thickness te	7.2mm
Center thickness tc	8.7mm
Back focal length fb	95.1mm
Centration	＜3′

details

DL-15-30PNIR

15mm

30.1mm

6-12 weeks

$128.00

Material	N-LAK22, SF6
Design wavelength	700nm, 880nm, 1100nm
Coating	Multi-layer anti-reflection coating (700 – 1550nm)
Cement	Ultraviolet Hardened Adhesive
Laser Damage Threshold	0.3J/cm²
Surface Quality (Scratch-Dig)	40-20
Diameter φD	φ15mm
Focal length f	30.1mm
Edge thickness te	5.6mm
Center thickness tc	7.4mm
Back focal length fb	26.0mm
Centration	＜3′

details

DL-25-40PNIR

25mm

40.1mm

6-12 weeks

$138.00

Material	N-LAK22, SF6
Design wavelength	700nm, 880nm, 1100nm
Coating	Multi-layer anti-reflection coating (700 – 1550nm)
Cement	Ultraviolet Hardened Adhesive
Laser Damage Threshold	0.3J/cm²
Surface Quality (Scratch-Dig)	40-20
Diameter φD	φ25mm
Focal length f	40.1mm
Edge thickness te	9.3mm
Center thickness tc	13.2mm
Back focal length fb	32.8mm
Centration	＜3′

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◦The lens design is optimized so that the focal length change is minimized in the near infrared region. The focal length matches at 700nm, 880nm, 1100nm wavelengths and is optimized to minimize aberrations.
◦It is suitable as a collimating lens not only because chromatic aberration but also spherical aberration is collected.