Fig. 7
From: Design of a 65-degree collimating lens for lightguide-based AR glasses

Tracing of the chief ray for the maximum field and the marginal ray for the 0-degree field in a 65-degree collimating lens.
From: Design of a 65-degree collimating lens for lightguide-based AR glasses

Tracing of the chief ray for the maximum field and the marginal ray for the 0-degree field in a 65-degree collimating lens.