Our stock products are being manufactured in our plants continuously in order to provide you a shortest lead time as possible.
In the following table you may find typical lead times. They may vary depending on quantity and raw material availability. Some products are having an interchangeable parts.
You will receive an accurate delvery date on your order confirmation after you ordered.
|Optomechanics||Average 2 - 5 weeks*|
|Optics||Average 2 - 5 weeks*|
|Motorized Stages||Average 3 - 6 weeks*|
|System||Average 3 – 6 weeks*|
*This is an average typical lead time. For more details, please ask to: email@example.com
The stock availability for this product is limited at the moment. Please contact the sales team for more information at firstname.lastname@example.org.
Estimated average shipping time is 2 - 10 working days. For urgent shipping please contact the sales team at email@example.com. Extra charges may applies.
At this time pre-manufactured parts are already available for a quick assembly.
The typical lead times is estimated at 1 - 3 weeks after your order, depending on quantity.
You will receive an accurate delivery date on your order confirmation after you ordered.
For more details, please ask to : firstname.lastname@example.org
The VND is a reflective ND filter. The reflectivity and the transmittance vary by rotation. They are used mainly for light intensity adjustment in vision or illumination experiments.
◦Possible to adjust the intensity by rotation continuously or select light intensity position.
◦The transmittance light can be adjusted logarithmically, it makes dynamic light intensity adjustment possible.
◦Thin and space saving, it is easy to be placed in a narrow optical test set up.
◦The VND-U model is adaptable for use at Ultraviolet bandwidth made of fused silica.
▶For AOI (Angle of Incident) changing, the transmittance can be also changed. We recommend to use with the VBS, Variable Beam Splitter.
▶Please refer to here for Wavelength Characteristic Data (Reference Data, EXCEL file format).
▶The round shape variable ND filter is very fragile. The bore is made of glass. Do not force on one surface of the bore when fixed in a holder, it could be broken. For a compatible ND filter holder (NDHN) for your optics replacement on to the holder, please contact our Sales Division for assistance.
▶The Chromium film coating is absorptive, please avoid to use with high power laser.
▶High power laser light can have thermal lens effects, please use (VBS) Variable Beam Splitter for high power and high energy laser applications.
▶The reflected laser light beam is dangerous for eyes, the user must be aware and be prepared to use unreflective tools at the end of the laser beam.
▶The normal incident of the laser beam may produce optical feedback, to avoid this situation please use it with a small incident angle.
▶Incident light with large beam onto the Variable ND can produce a laser strength inside of the beam. Use incident light to the filter with a narrow beam.
|Material||VND: BK7 VND-U: Synthetic fused silica||Soda Lime Glass|
|Coating||Chrome (Cr)||Chrome (Cr)|
|Wavelength Range||VND：400 - 2000nm VND-U：200 - 2000nm||400 - 700nm|
|Transmittance||0.1 − 92%||1 − 92%|
|Surface flatness||λ (Measurement area: φ30mm)||Both side: slippery surface (no polishing)|
|Surface Quality (Scratch-Dig)||60-40||80−50|