UV Long Pass Filter,360nm Cut-Off Glass for Lab Spectroscopy(180-42-2mm(1))

The range of 10.72-6.9-0.5mm (5) in the options is equivalent to a glass square with a length of 10.72mm, a width of 6.9mm, a thickness of 0.5mm, and a quantity of 5 pieces. The meaning of other specifications in the options is also the same.The D25-2mm (3) in the options is equivalent to a glass disc with a diameter of 25mm, a thickness of 2mm, and a quantity of 3 pieces. The meaning of other specifications in the options is also the same.The above spectra are for reference only. The measured spectra of different batches may vary, but it does not affect the average transmittance.UV filter long wave pass series:The colored glass ultraviolet filter series is a selective absorption cut-off filter made of special colored glass. Specific elements in the material can absorb spectra before a certain wavelength (360nm), and transmit spectra after it. For beams incident at different angles, the center wavelength of the filter remains unchanged.Colored optical filters should be selected as absorption filters, and attention should be paid to:1. The transmittance of the long wave pass series filter is related to the cutoff wavelength and the actual thickness of the filter. Generally, as the thickness increases, the transmittance will slightly decrease, but the cutoff depth will slightly increase. Special attention should be paid when selecting.2. Do not use for high-power laser applications at temperatures below 100 degrees Celsius.3. There are multiple models in this series, all of which can transmit ultraviolet light and subsequent wavelengths. Different models transmit different wavelengths. Please select the appropriate model based on the actual application to determine the desired wavelength range.4. The colored glass filter has not been coated on both sides, resulting in a certain degree of reflection.==========High-concerned chemical : NoneOrigin : Mainland China

• 1.【Precise Wavelength Control】Selective absorption cut-off filter made of special colored optical glass, blocks UV light below 360nm while transmitting longer wavelengths, ensuring stable center wavelength for consistent experimental results.
• 2.【Multiple Size Options】Available in square (10.72×6.9×0.5mm) and disc (D25×2mm) shapes with different quantities (1/3/5 pieces), meeting diverse lab setup and application needs, easy to install and replace.
• 3.【High Transmittance & Stability】Offers reliable average transmittance, with slight thickness-related variations noted; batch-to-batch spectral differences do not affect overall performance, ideal for long-term use.
• 4.【Safe & Durable Material】Made of quality UV glass, no high-concerned chemicals, withstands temperatures above 100°C, not suitable for high-power laser applications, ensuring safe operation in lab environments.
• 5.【Uncoated Design & Versatility】Both sides uncoated with slight reflection, compatible with various optical instruments, suitable for spectroscopy, photonics, UV filtering, and other scientific research scenarios.