Multispectral Lens
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Specifications
| Parameter | Value |
|---|---|
| Lens Usage Method | Lens + Filter + Camera |
| Target Plane (CMOS) - CMOS Size [Designed as 1″ at design time] | 2 ″ (Designed as 1 ″ at design time) |
| Image Sensor (CMOS) - Pixel Size | 11 μm × 11 μm |
| Image Sensor (CMOS) - Number of Pixels | 2048*2048 |
| Image Sensor (CMOS) - Cover Glass | Quartz, thickness 1 mm |
| Filter Specifications [The filter is located between the CMOS and the lens, used independently, only 1 piece used at a time] | Center wavelength 254±2, thickness 3 mm, aperture 25.4 mm, bandwidth 20 nm: Quartz |
| Filter Specifications [The filter is located between the CMOS and the lens, used independently, only 1 piece used at a time] | Center wavelength 365±2, thickness 3 mm, aperture 25.4 mm, bandwidth 20 nm: Float glass |
| Filter Specifications [The filter is located between the CMOS and the lens, used independently, only 1 piece used at a time] | Center wavelength 450±2, thickness 3 mm, aperture 25.4 mm, bandwidth 20 nm: Float glass |
| Filter Specifications [The filter is located between the CMOS and the lens, used independently, only 1 piece used at a time] | Center wavelength 535±2, thickness 3 mm, aperture 25.4 mm, bandwidth 20 nm: Float glass |
| Filter Specifications [The filter is located between the CMOS and the lens, used independently, only 1 piece used at a time] | Center wavelength 630±2, thickness 3 mm, aperture 25.4 mm, bandwidth 20 nm: Float glass |
| Filter Specifications [The filter is located between the CMOS and the lens, used independently, only 1 piece used at a time] | Center wavelength 850±2, thickness 3 mm, aperture 25.4 mm, bandwidth 20 nm: Float glass |
| Focal Length | No requirement |
| Clear Aperture | ≥20 mm |
| Aperture F# | 2.8~16 |
| Back Focal Length (Back Working Distance) | Filter can be inserted |
| Maximum Magnification | ≥1:1.5 |
| Macro Working Distance | 50 mm~200 mm |
| Search Working Distance | 2 m~5 m |
| Fingerprint Detection Probability [at 2m search] | At 2 m search, fingerprint detection probability ≥65 % |
| Whether close-up lens is added | No |
| Blade | 9 |
| Interface | No requirement |
| Stray light suppression | Yes |
| Optical Filter | Reserved |
| Light Source Interface Position | Reserved |
| Focus Method | Manual focus |
| Transmittance Requirement [200~1100nm] | ≥90 %@200~1100 nm |
| Locking Device | Required at all manual adjustment points |
| Appearance | According to industry standard or enterprise standard |
| IP Rating | IP64 |
| Field of View [50mm] | Approx. 20 mm*20 mm@50 mm |
| Field of View [2m] | Approx. 60 cm×60 cm@2 m |
| Corrected Wavelength [Within 4/3″ pixel range; this standard applies for macro, the specification may be relaxed for long-distance work, subject to easier search of fingerprint targets] | 200 nm-1100nm |
| RMS Spot Diameter [Within 4/3″ pixel range; this standard applies for macro, the specification may be relaxed for long-distance work, subject to easier search of fingerprint targets] | ≤10 μm |
| Distortion [Within 4/3″ pixel range; this standard applies for macro, the specification may be relaxed for long-distance work, subject to easier search of fingerprint targets] | ≤0.5 % |
| Relative Illumination [Within 4/3″ pixel range; this standard applies for macro, the specification may be relaxed for long-distance work, subject to easier search of fingerprint targets] | ≥90 % |
| Encircled Energy [Within 4/3″ pixel range; this standard applies for macro, the specification may be relaxed for long-distance work, subject to easier search of fingerprint targets] | ≥90 % |
| Stray Light Coefficient [Within 4/3″ pixel range; this standard applies for macro, the specification may be relaxed for long-distance work, subject to easier search of fingerprint targets] | ≤3 % |
| Apochromatic [Within 4/3″ pixel range; this standard applies for macro, the specification may be relaxed for long-distance work, subject to easier search of fingerprint targets] | Can be designed in two segments: ultraviolet and visible-near infrared |
| Ghost Image [Within 4/3″ pixel range; this standard applies for macro, the specification may be relaxed for long-distance work, subject to easier search of fingerprint targets] | None |
| Stray Light [Within 4/3″ pixel range; this standard applies for macro, the specification may be relaxed for long-distance work, subject to easier search of fingerprint targets] | None |
| MTF [Macro; 10lp/mm; Center Field] | ≥0.95 |
| MTF [Macro; 10lp/mm; 0.7 Field] | ≥0.9 |
| MTF [Macro; 10lp/mm; 1.0 Field] | ≥0.85 |
| MTF [Macro; 60lp/mm; Center Field] | ≥0.9 |
| MTF [Macro; 60lp/mm; 0.7 Field] | ≥0.85 |
| MTF [Macro; 60lp/mm; 1.0 Field] | ≥0.8 |
| MTF [Macro; 100lp/mm; Center Field] | ≥0.75 |
| MTF [Macro; 100lp/mm; 0.7 Field] | ≥0.7 |
| MTF [Macro; 100lp/mm; 1.0 with field of view] | ≥0.65 |
| MTF design specification - long-distance search [2m~5m] | According to Johnson's criteria, a detection probability ≥65 % is sufficient; MTF should be as high as possible |
| White light LED resolution | >1000*1000 |
| Monochromatic light resolution [550,950nm] | >1000*1000@550,950 nm |
| Monochromatic light resolution [254,365nm] | >1000*1000@254,365 nm |
Datasheet
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