High-Efficiency Aspheric Lens
This high efficiency lens is useful to variably focus or collimate laser light when used with the PLH3D-Series laser heads. This lens can be purchased as a replacement for use with PLH3D-Series laser heads if the included one should become dirty. It has a broadband AR coating for the visible range, making it useful for many applications other than engraving.
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- Easy to make fine adjustments of the focus spot size or working distance due to the M9 x 0.5 mm thread
- High numerical aperture (NA) and anti-reflection (AR) coating for high light collection efficiency and transmission
- Replacement focusing lens for all PLH3D-Series laser heads
This high-efficiency lens can be used to variably focus or collimate laser light. The aspheric design reduces or nearly eliminates spherical aberration without the need for multiple lens elements. Its short effective focal length (EFL) of 4 mm make a variety of working distances possible. This lens has a broadband anti-reflection (AR) coating over the 400-700 nm range on both surfaces, making it useful for a variety of applications in addition to engraving at the 450nm wavelength.
This lens is included with some of our PLH3D-6W-Series laser engravers. It is easy to clean the surfaces of the lens if they should become dirty when engraving, which may be done with Isopropyl Alcohol (IPA) and an optical wipe. However, in some cases, it can be necessary to replace the lens. It is recommended to purchase an extra lens with PLH3D-Series laser heads if the product will be used in an environment where dust, smoke or oil are generated.
Note that our PLH3D-Series Focus Adjuster accessory is not compatible with this lens.
|Focal Length||4,02 mm|
|Mounting Hole Thread Type||M9 x 0,5|
|AR Coating||400 - 700nm|