TELECENTRIC LENS

摘要

A telecentric lens (100) comprises a front optical group (112) adapted to receive the rays coming from an object observed and a rear optical group (114) adapted to convey said rays towards a sensor (30). At least one between the front optical group (112) and the rear optical group (114) consists of only two positive focal lenses (112; 114′). An artificial vision device (1) comprises the telecentric lens (100) and a lighting device (20) having a paraboloidal semi-reflector element (22).

主权项

1. Telecentric lens, comprising a front optical group adapted to receive rays coming from an observed object and a rear light optical group adapted to convey said rays towards a sensor, wherein each of the front optical group and the rear optical group consists of two positive focal lenses, characterised in that the lenses of the front optical group are flat-convex and oriented with the convex surface facing the object observed, and wherein the lenses of the rear optical group are flat-convex with the respective convex surfaces facing each other.