초록 ▼

Optical loupes comprise a frame supporting two optical devices, each of which has an ocular and an objective. The frame has side arms or stems and a bridge for enabling the frame to be worn like a pair of spectacles, whereby the optical devices are located immediately in front of the eyes of the vie

Optical loupes comprise a frame supporting two optical devices, each of which has an ocular and an objective. The frame has side arms or stems and a bridge for enabling the frame to be worn like a pair of spectacles, whereby the optical devices are located immediately in front of the eyes of the viewer. The ocular and the objective each have an optical axis. The optical axis of the ocular and the optical axis of the objective intersect at an angle of about 135.degree., and a Schmidt prism redirects light from the objective to the ocular in each case. A light source is provided on the frame between the optical devices and provides a gradually diverging light beam to illuminate an object being reviewed. The optical axes of the respective objectives converge at the object being reviewed. The loupes allow the user to observe at a level below his or her normal line of sight while maintaining the head in an upright position.

대표청구항 ▼

[ What is claimed is:] [1.] Binocular, bent-axis optical loupes, comprising:a frame including means for attaching the frame on the head of a human user;a pair of optical devices mounted on the frame at positions proximate a respective eye of a human user, wherein each such device includes an ocular

[ What is claimed is:] [1.] Binocular, bent-axis optical loupes, comprising:a frame including means for attaching the frame on the head of a human user;a pair of optical devices mounted on the frame at positions proximate a respective eye of a human user, wherein each such device includes an ocular having an ocular axis, which ocular axis is in line with the normal visual axis of the human user when looking straight ahead when the frame is attached to the head of the human user, an objective which defines a field of view outside the normal visual axis of the human user when looking straight ahead, the objective having an objective axis, the objective axis intersecting the ocular axis at an obtuse angle which angle opens toward the human user when the frame is attached to the head of the human user, and a light transfer device located between the ocular and the objective where the objective and ocular axes intersect, which light transfer device redirects light from the objective to the ocular, whereby an object which appears in the field of view of the objective is capable of being viewed through the ocular; anda light source provided on the frame between the optical devices, the light source providing a gradually diverging beam directed to illuminate the object being viewed in a manner which gives the effect of true co-axial illumination.