Narrowband bandpass filters
For applications requiring transmission within a defined spectral band and out-of-band blocking.
Optical Filters
Interference Filters
We supply custom thin-film interference filters according to customer drawings and specified spectral requirements.
- Germany-based B2B supplier
- Manufacturing to customer specifications
- Optical inspection and measurement support
- From single components to repeat orders
Product overview
Specifications are defined according to the required filter function and may include center wavelength (CWL) or cut-on/cut-off wavelength, passband transmission, bandwidth, blocking range, optical density (OD), component dimensions, and angle of incidence (AOI).
Configurations
IPL cut-on filters
For IPL and related optical systems requiring transmission above a specified cut-on wavelength.
Longpass and shortpass filters
For applications requiring wavelength-selective transmission above or below a specified spectral edge.
Representative examples
910 nm Bandpass Filter
- Center wavelength (CWL): 910 ± 45 nm
- Bandwidth: 45 ± 7 nm
- Peak transmission: > 80%
- Out-of-band blocking: OD ≥ 4 over the UV–1200 nm range, excluding the passband
- Effective refractive index: approx. 2
- Surface quality: 60-40 scratch-dig
420 nm Cut-On IPL Filter
- Passband transmission: T > 98% at 420–950 nm
- Extended NIR transmission: approx. 70–80% at 950–1200 nm
- Blocking range: 300–420 nm
535 nm Cut-On IPL Filter
- Passband transmission: T > 98% at 535–950 nm
- Extended NIR transmission: approx. 70–80% at 950–1200 nm
- Blocking range: 300–535 nm
580 nm Cut-On IPL Filter
- Passband transmission: T > 98% at 580–950 nm
- Extended NIR transmission: approx. 70–80% at 950–1200 nm
- Blocking range: 300–580 nm
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635 nm Cut-On IPL Filter
- Passband transmission: T > 98% at 635–950 nm
- Extended NIR transmission: approx. 70–80% at 950–1200 nm
- Blocking range: 300–635 nm
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From Specification to Production
- Germany-based contact for RFQs and technical clarification
- Manufacturing to confirmed drawings and specifications
- Inspection and measurement support where applicable
- Support for repeat orders and long-term supply
RFQ PREPARATION
What to send for a quote
Please send your drawing or technical specification together with the following information.
- Filter type or required spectral function
- Wavelength, transmission, and blocking requirements
- Angle of incidence
- Required quantity