Longpass
Passes longer wavelengths while blocking shorter wavelengths. RFQs should include the transition area, pass band and blocking target.
Optical filter guide
Optical filter guide for RFQ vocabulary
Use this guide to describe filter families and specification terms clearly before submitting a custom or catalog-based request.
Shortpass
Passes shorter wavelengths while blocking longer wavelengths. RFQs should define the useful band and where blocking must begin.
Narrowband
Passes a tight wavelength band. RFQs should include center wavelength, FWHM, peak transmission and out-of-band blocking.
Neutral density
Reduces intensity across a range. RFQs should include OD range, spectrum range, size and uniformity needs.
Component codes are evidence, Lumalyx aliases are public planning names.
The Giaitech 2024 medical catalog adds PCR, POCT, flow cytometry, endoscope, spirometer and aesthetic wavelength examples to the project records. The Lumalyx project records converts those examples into Lumalyx planning aliases before they appear in website copy.
Use a Lumalyx alias such as LMX-MED-POCT-NBP-535-A in planning copy; keep the original component page and product references in project records records.
Use family names as a starting point
Family names make search and intake easier, but they do not replace specifications. A request for an SP850 shortpass or LP470 longpass style part still needs pass-band, blocking and geometry fields before review.
- Longpass examples in the reviewed catalog set include LP425, LP470 and LP590 style entries.
- Shortpass examples include SP580, SP850 and SP970 style entries.
- Narrowband examples include NBP800 style entries with center wavelength, blocking range and FWHM fields.
- Neutral density examples use OD range as a primary planning field.
Translate terms into request fields
The safest RFQ path is to translate every filter name into measurable fields. If the target is fluorescence separation, include excitation and emission regions. If the target is attenuation, include OD range and wavelength coverage.
Keep application language separate from component choice
Application context helps engineering review, but it should not be used as a guarantee that a filter family will solve a specific problem. Submit the application, spectra and mechanical limits so options can be checked against the actual task.
Prepare a reviewable RFQ
Send the known wavelength, blocking, geometry and quantity fields. Mark unknown values clearly so engineering review can focus on the missing decisions.
Start RFQFAQ
Common RFQ questions.
These answers keep the request focused on reviewable engineering fields.
Is longpass or shortpass enough for an RFQ?
No. Include the pass band, blocked range, transition area, transmission target and geometry fields.
What does FWHM mean in a narrowband filter request?
FWHM is the width of the pass band at half of peak transmission. It helps define how tight the useful wavelength window should be.
When should I mention OD?
Mention OD or blocking depth whenever unwanted light must be suppressed across a defined range.
Signal-path review
How this page helps prepare a clearer optical request.
This section connects the page to practical request fields, application context and engineering review steps.
Filter family names are vocabulary, not enough by themselves.
Longpass, shortpass, bandpass, narrowband, notch and neutral density terms help classify a request, but each still needs measurable review fields.
Part numbers and Lumalyx request names stay separate.
Lumalyx request names help organize a project, while any existing part number can still be supplied during RFQ review.