Imatest Stray Light LED Source
Visible, collimated light source for characterizing stray light (flare)
The Imatest Stray Light LED Source is specifically designed for characterization and testing of stray light (flare) in cameras. It projects an image of a small point-like source as a collimated beam of light, similar in form to the Sun. When imaged by a camera, the saturated image of the source produces stray light that can be visually inspected and analyzed using Imatest stray light analysis software.
This hardware is compatible with the Imatest Benchtop Test Stand.
Description
Imatest Stray Light LED Source Features
- Projects an image of a small point-like source as a collimated beam of light
- Angular diameter similar to the Sun, allowing for detailed characterization of most forms of stray light, including diffraction spikes, ghosting, and veiling glare
- Designed for low internal reflections (e.g., no halo) by intentionally underfilling the collimating lens with light
- Adjustable intensity/brightness
- Large beam diameter to overfill the front of the camera device
- Compact source and driver size for convenient, benchtop testing
Stray-Light-Source_Info-Sheet_2023_updated
| Specifications | Details |
| Spectrum | Visible, 3000K
(See picture of measured spectral irradiance) |
| Angular Diameter | ~0.57° |
| Divergence Angle | Adjustable collimation with minimum half divergence angle of 0.29° |
| Beam Diameter | ~25 mm (50 mm collimating lens diameter) |
| Light Intensity | Illuminance: Up to 2000+ lux
Irradiance (380-780nm): Up to 7+ W/m2 |
| Design Testing Distance | Up to 1 m |
| LED Driver Output & Voltage | 1.2 A | 8.0 V |
| Dimensions | 163mm x 75mm x 85mm ( L x W x H, including base mounting plate) |
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