1.Product Descriptions :
| Characteristics: | Infrared Transmission Acrylic Filter |
| Type: | Longpass Filter |
| Cut-off Wavelength(in mm): | 700nm,710nm,740nm,780nm |
| Peak Transmittance(%) : | >90% |
| Color: | Translucent Black or black |
| Shape: | Square or specified |
| Custom Processing: | Custom Shape, Hole Drilling, Step Structure, Adhesive Backing, Hard Coating |
| Surface Quality: | 40/20, or 60/40 scratch-dig |
| Dimension(mm): | Specified** |
| Thickness(mm): | 0.8-3mm |
| Substrate: | Optical Ultra-Glass |
| Remark： (1)Spectral range:380-1100nm (2) Size customized: 86x86mm, 80x80mm, other can customized, max. 300x300mm (3) Thickness available: 0.21、0.3、0.55、0.7、1.0、1.1、1.5、1.8、2.0、3.0mm, etc. | |
2. Measured Spectral curve
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Picture 1: LP700nm Spectral Curve |
What is Infrared Transmission Acrylic Filter?
An Infrared (IR) Transmission Acrylic Filter is a specialized optical plastic sheet (typically made of PMMA). It appears black or dark red to the human eye but transmits infrared light with high efficiency.
What is typical application for Infrared Transmission Acrylic Filters?
What is key parameter when choose for right Infrared Transmission Acrylic Filter?
When selecting Infrared Transmission Acrylic Filter, the peak wavelength will be one of key parameter to be designated, the filter must have its highest transmittance at this specific wavelength. Secondly, peak transmittance, it is typically required to be >90% . Third, cut-off depth. Forth, bandwidth, this refers to the range of wavelengths that pass through. Fifth, material Grade, ensure you are using Optical Grade PMMA, not general-purpose acrylic. Sixth, environmental durability. Seventh, surface quality, typically specified as 40/20, or 60/40, etc.
Shenzhen Hengda Liyuan Optoelectronics introduced advanced optical technology that apply depositing nanomaterials through ion-assisted evaporation onto a multilayer hard film in a high vacuum environment which coating layer is firm and has good tightness, and small bandwidth drift. Liyuan optoelectronics have been focus on optical coating for more than 17 years and offer one-stop optical filters solution including Narrow Bandpass Filters, IR cut-off Filters, Longpass & Short Filters, Notch Filters, ND filters, Star filters and Optical sapphire block.
