A LP470 filter passes most visible and near-IR wavelengths of light. Used with monochrome cameras to aid in increasing contrast and resolution by blocking UV and shorter deep blue wavelengths. To achieve a similar effect while also blocking longer wavelengths including the near infrared, see our BP505 filter transmitting longer wavelengths often leads to decreased … Continued
LP415 filters reflect the full UV spectrum, and will not solarize over time, effectively blocking most of the light emitted by 395nm and shorter wavelength UV LEDs. These filters also act as a protection window for lenses and are well suited for color imaging applications. The substrate material is Borofloat®, meaning LP415 can tolerate temperatures … Continued
LP390 filters are absorptive filters used to block ultraviolet (UV) light while allowing high (>90%) visible and near-IR light transmission. Most silicon camera sensors have some sensitivity in the UV spectrum. In some color cameras this light can typically be recorded as if it is blue light, resulting in an exaggerated bluish tint. These filters … Continued
Durable, broadband, multilayer hard coated LP340 filters are economical glass protective windows that help eliminate reflected glare, thus improving contrast and brightness while protecting far more costly lenses, cameras and lighting. Custom shapes and sizes can be quickly fabricated in 1mm or 2.25mm thickness.
LP330 Protective Windows are the lowest cost alternative when it comes to dust covers or protection of optical components. No anti-reflection coatings are provided, however parallelism and surface quality are excellent. A slight reduction in infrared and deep red transmission may also be associated with the LP330.
Low scatter/absorption combined with excellent strength; thermal, mechanical and solar properties similar to Pyrex make LP285 filters an excellent protective window for imaging applications between 385-1100nm.
A DB940 filter passes visible and 940nm LED light. 940nm LEDs do not emit the faint red glow associated with 850nm and other lower near-IR LED wavelengths. Using a DB940 filter over or behind the lens allows full color imaging during the day and covert surveillance at night. However any cameras spectral response at 940nm … Continued
A DB850 filter passes visible and 850nm LED or laser diode illumination. 850nm LEDs are perhaps the brightest of all infrared LEDs. Using a DB850 filter over (or behind) the camera lens allows for full color imaging by day and excellent monochrome contrast at night. Useful for machine vision and day/night surveillance applications.
DB735 filters pass visible light and 735-740nm LED light. These filters allow maintenance of excellent color rendition while taking advantage of any cameras significantly higher spectral response at lower near-infrared wavelengths. Useful for license plate recognition, traffic control, surveillance and machine vision applications.
The DB660/850 filter has been designed primarily for NDVI imaging applications. When using a single camera, incorporation of this filter allows reflected red light (660nm) to be captured in the camera sensor’s red channel and reflected near- infrared light (850nm) to be captured in the sensor’s blue channel (the green channel is not used). Even … Continued
