Inquiry about Optical Filters NEW

We are looking for optical filters according to the specifications below and would like to request quotation, lead time, and technical confirmation. Common mechanical specifications for all filters: Size: 17.5 ±0.1 mm × 9.5 ±0.1 mm Thickness: 1.0 ±0.1 mm Clear aperture: ≥90% Surface quality: 60-40 Parallelism: ≤5 arcminutes Filter 1: CWL 1940 nm, FWHM 60 nm, OD ≥4 @ 400–3000 nm, peak transmission ≥80% Filter 2: CWL 2200 nm, FWHM 100 nm, OD ≥4 @ 400–3000 nm, peak transmission ≥75% Filter 3: CWL 1840 nm, FWHM 40 nm, OD ≥4 @ 400–3000 nm, peak transmission ≥70% Filter 4: Visible range filter operating below 600 nm, bandpass or shortpass, OD ≥4 @ 600–3000 nm, transmission ≥20% We need unit price for 20 pieces of each filter, MOQ, production lead time, sample availability and sample price, measured spectral curves for transmission and blocking before production/shipment, and details on substrate and coating. Please confirm if these specifications can be achieved with standard products or require custom design.