large working distance of more than 300 mm
integrated top-light illumination
broad spectral range for RGB applications
From the Idea to the Finished Solution
Due to the limited space available, the actual dimensions of the
lens were tightly restricted. Using a smart combination of mechanical mounts and optical alignment the requirements could
be fulfilled and the working distance achieved with a precision of
less than 1 mm.
Resolution and contrast
Modulation Transfer Function (MTF) at a wavelength of 460 nm.
The resolution of the lens is very close to the diffraction limit even
in the corners of the sensor.
Longitudinal chromatic aberration
Longitudinal chromatic aberration in the visible spectral range. The lens is designed with an apochromatic correction. The offset of the focal planes for RGB-LEDs (typ. wave length 460/525/625 nm) is within 10 μm.
- working distance: 365 mm
- magnification: 0.86X +/- 1%
- work piece dimensions: 16.5 x 12.1 mm
- sensor size: 14.1 x 10.4 mm
- numerical aperture: 0.053
- telecentricity at work piece level: < 0.1°
- distortion: < 0.1%
- CRA at sensor level < 2.25°
- length: 198 mm
- weight: 650 gramme
- connector: C-mount
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