445/520nm Optical Filter
The 445/520 dual band arrangement uses 520 nanometer green light and 445 nanometer blue light as complementary excitation sources for nondestructive examination of physical evidence and traces. Examples include fingerprints, bloodstains, body fluids, shed cells, bones, tooth fragments, fibers, and latent or treated blood fingerprints. No chemical pretreatment is required, helping preserve the authenticity, integrity and biological activity of the evidence.
Save to Favorites
Overview
Specifications
| Parameter | Value |
|---|---|
| Material | Optical Glass |
| Size | Diameter 7*2mm |
| Size tolerance | ±0.1mm |
| thickness tolerance | ±0.1mm |
| Surface Quality | 60/40 |
| Spectral Transmission Characteristics | 380-530nm Tave＜0.1% OD3 Above |
| Spectral Transmission Characteristics | 580-900nm Tave＞94% |
| Central Wavelength | 550±10nm T＝50% |
Applications
Datasheet
Supplier Information
Related Products
-
Optical-glass neutral-density filter Optical Filters Uni-lens
Dimensional Tolerance: ±0.5 mm Surface Quality: 80-50 or higher Surface Figure: 4~6λ or better
Neutral-density filters make photographic exposure easy to control. By blocking light from reaching the camera sensor, they allow the camera to maintain a larger aperture for longer.
-
Machine-vision bandpass filter Optical Filters Uni-lens
Coating: Antireflection coating Surface Quality: 40/20 Guaranteed peak transmission: >90%
A bandpass filter passes frequencies within a specified range and rejects or attenuates frequencies outside it, selectively transmitting part of the spectrum while rejecting all other wavelengths.
-
Longpass filter Optical Filters Uni-lens
Filter Type [LP Series]: Optical interference or colored-glass filter
Long-pass filters serve gas monitoring, temperature sensing, other sensing, thermal imaging, and motion detection. They block shorter wavelengths and transmit longer wavelengths. Blocking can result from reflection, absorption, or both. An antireflection coating on the second surface can improve passband transmission.
-
Dielectric-coated filter Optical Filters 100optics
Material: BK7 Glass， Fused Silica or Color glass Dimension Tolerance: +0.0/-0.2 Thickness Tolerance [General]: ±0.2 mm
Multilayer-coated filters are made from materials such as Bk7, fused quartz, colored glass, and sapphire. Baijing Optoelectronics supplies bandpass, dichroic, short-pass, and long-pass multilayer-coated filters.
-
Colored Glass Filter Optical Filters 100optics
Material: Color glass Dimension Tolerance: +0.0/-0.2 Thickness Tolerance [General]: ±0.2 mm
Colored-glass filters are widely used in displays, CCDs, microscopy, photometry, radiometry, imaging, astronomy, instrumentation, and aerospace. Schott, Hoya, and domestic colored glasses are available for ultraviolet, visible, and near-infrared wavelengths.
Related Articles
The LZFL405‑80mW‑3 series from Shenzhen Leirte Optoelectronics Co., Ltd. is a coaxial‑packaged violet‑blue single‑mode fiber‑coupled laser diode. It delivers 80 mW continuous‑wave output at 405 nm. Light is coupled into 3 μm core‑diameter single‑mode fiber for clean beam quality and easy integration into diverse optical systems. It serves as a compact violet‑blue light source for medical instruments and industrial printing applications.
Wuhan Optics Valley Quantum Technology Co., Ltd. is a leading domestic developer of high‑speed semiconductor optical chips and photodetector components. Our product portfolio covers InGaAs avalanche photodiode bare dies and PIN photodetector chips designed for fiber‑optic communication
As a professional ultraviolet‑laser solution provider, Precilasers has launched its 266 nm narrow‑linewidth industrial laser, delivering reliable single‑frequency output for high‑precision interference lithography, semiconductor inspection and precision metrology applications.
Electro-optic deflectors (EODs) are optical devices used to steer or deflect light beams by applying an electric field to a specialized optical crystal. Unlike mechanical beam steering systems that rely on moving mirrors, electro-optic deflectors enable high-speed, non-mechanical beam control with exceptional precision and responsiveness. They are widely used in laser scanning, optical communications, microscopy, laser printing, spectroscopy, and scientific research, where rapid and accurate laser beam positioning is essential.
Loading...
Name
Phone
Organization
Use Case
Database Platform