Abstract: Optical apparatus (20, 60) includes a spectacle frame (30, 64) configured to be worn by a user (22). A telescope (26, 62) is fixed to the spectacle frame and includes an objective (44), an eyepiece (28), and multiple optical surfaces (48, 56, 58) defining a folded optical path for providing a magnified image to an eye (40) of the user while at least one of the optical surfaces is located at least partially posterior to a coronal plane (41) located at a rear surface of the eyepiece.
Abstract: Optical apparatus (20, 60) includes a spectacle frame (30, 64) configured to be worn by a user (22). A telescope (26, 62) is fixed to the spectacle frame and includes an objective (44), an eyepiece (28), and multiple optical surfaces (48, 56, 58) defining a folded optical path for providing a magnified image to an eye (40) of the user while at least one of the optical surfaces is located at least partially posterior to a coronal plane (41) located at a rear surface of the eyepiece.