Telecentric lens
A telecentric lens comprises a front optical group adapted to receive rays coming from an observed object, a rear optical group, adapted to convey said rays towards an image plane of a sensor, and a lens aperture positioned between the front optical group and the rear lens group, wherein the lens ap...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A telecentric lens comprises a front optical group adapted to receive rays coming from an observed object, a rear optical group, adapted to convey said rays towards an image plane of a sensor, and a lens aperture positioned between the front optical group and the rear lens group, wherein the lens aperture lies on the focal plane at least of the front optical group. The front optical group is devoid of lenses and is consists of a concave curved primary mirror adapted to receive and reflect the rays coming from the observed object, and at least one secondary mirror adapted to receive and reflect towards the rear optical group the rays coming from the primary mirror. |
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