1.Product Descriptions:
| Characteristics: | 500nm Bandpass Filter |
| Type: | Interference Type Filter |
| Central Wavelength(in nm): | 500 |
| Peak Transmittance(%) : | >90% |
| Full Width at Half Maximum(FWHM): | 45nm |
| Optical Density (OD): | OD2 – OD3 |
| Shape: | Round, Square or customized. |
| Color: | Green |
| Angle of Incidence(AOI): | 0° |
| Surface Quality: | 60/40 scratch-dig |
| Dimension(mm): | Customized, max. 300x300mm |
| Thickness(mm): | 0.21、0.3、0.55、0.7、1.0、1.1、1.5、1.8、2.0、3.0mm…etc. |
| Substrate materials: | Ultra-clear glass,K9,BK7,B270,D2637T, Quartz Glass(Fused Silica) or other specified. |
| Remark: Support customized for wavelength from 200-2500nm. | |
2.Measured Spectral Graph – 500nm Bandpass filter:
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| Picture 1: BP500-45nm Spectral Graph measurement |
3.What is typical application for 500nm bandpass filters?
A 500nm bandpass filter is an optical component that selectively transmits light centered around the 500nm wavelength while blocking light at other wavelengths.
500nm bandpass filters find extensive application across various fields:
- Fluorescence microscopy and spectroscopy: used to isolate green fluorescence signals such as GFP, enabling high signal-to-noise ratio imaging.
- Biomedical and biochemical analysis: applied in flow cytometers, biochemical analyzers, and other instruments to select specific detection channels for identifying fluorescently labeled cells or substances.
- Laser and optical systems: used to isolate specific laser wavelengths or eliminate stray light, thereby improving system signal-to-noise ratio.
4.What is key parameter when choose for right bandpass filter?
When selecting a Bandpass Filter, normally the following factors need to be taken into consideration：
- Central Wavelength (CWL)：Firstly, CWL is one of key parameter to designate, it refer to the central wavelength at stable high transmission rate passband.
- Peak or Average Transmittance: typically ≥90%, Higher transmittance might need Anti-reflective(AR) coating.
- Full width at half maximum (FWHM): it refer to the interval between the two wavelength points where the transmittance rate reaches 50%.
- Blocking rate: usually in terms of optical density(OD), OD2-OD3 for standard and higher will be OD4-OD6 per requirement.
- Angle of Incidence (AOI): AOI need to be considered as Interference Filter is angle sensitive, 0° AOI by default, other AOI e.g. 30/45° need to be specified.
- Physical and environmental requirement: Substrate type, dimensions and thickness, surface quality, and environmental durability.
Related products:
460nm Bandpass Filter, AR+AF coating, 460nm CWL, 60nm FWHM, OD2,Support customized
555nm Narrow Bandpass Filter, 555nm CWL, 20nm FWHM,Support Customized
Shenzhen Hengda Liyuan Optoelectronics introduced advanced optical technology that apply depositing nano-materials 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. Besides, Liyuan optoelectronics have been focus on optical coating for more than 17 years ,and the company 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.
Other typical Bandpass filters in stock from Liyuan Optoelectronics include BP810 BP820 BP830 BP840 BP850 BP860 BP870 BP880 BP890 BP…etc.
