Excimer Laser Focusing Lens 79.8mm Focal Length

ETL-30-80P

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These lenses are manufactured with a synthetic fused silica material and it has a high transmittance value in the ultra-violet wavelength of 180 − 400nm. They have excellent performance and are ideal for focusing and imaging applications. There is no adhesive or heat absorption material used to produce these lenses, as a result they show high resistance to the ultraviolet light.

Details

◦They are made of 2 or 3 spherical lenses and they offer correction on spherical and comatic aberration.
◦Standard focal lengths for Excimer laser with 248nm, 266nm and 355nm.
◦NA 0.1 or below (ETL model NA 0.25) can be focused to the diffraction limit.

More Information

More Information
Name	Excimer Laser Focusing Lens 79.8mm Focal Length
Weight	0.0330lbs
Standard Coatings Available	No
Guide	Products that are not listed in the table or in the catalog such as high pulse lasers or different wavelengths are available upon request, please contact our Sales Division. Protective Windows is sold separately. WEB Reference Catalog Code/W3081 For detail on focal length of each wavelength, please see “wavelength characteristic of the focal length data” on “Technical Data”.
Remark	-
Attention	These focusing lenses are made for use to image an object located in an infinitive distance or using a point of source as a parallel light. The correct direction to input a parallel light is the side with barrel lettering. If the direction is wrong, the spherical aberration will be increased and the image unfocused. If Focusing lens is used with the designed wavelength the spherical aberration and transmission will be poor. Usage with high power laser or near a high temperature light source, the high heat build-up in the lens may alter the focal length. To avoid this, heat prevention is required. To reduce the focus spot size, ensure that the input beam diameter (1/e²) is reduced to half of the effective diameter of the focus lens. These focusing lenses are not chromatic lenses; they are not optically corrected. The lenses have 4% of reflectivity per surface; therefore about 20% of loss is expected in transmission.
Image Label	Excimer Laser Focusing Lens 79.8mm Focal Length
Focal length	79.8mm
Material	Synthetic fused silica for Excimer Laser
Material of frame	Aluminum (Finishing: Black anodized)
Design wavelength	248nm
Coating	Uncoated
Focal length f	79.8mm
Length L	22mm
Numerical aperture (NA)	0.17
Working distance (WD)	73.2mm

In stock

SKU

ETL-30-80P

SGD 1,341.50

Excimer Laser Focusing Lens 79.8mm Focal Length

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