Sony Corporation

Sumitomo Metal Mining Company, Ltd.

Sony Group Corporation

Susumu Ichikawa

Takashi Kobayashi

Mamoru Suzuki

Masami Sato

Akio Watanabe

Fumihiko Hanzawa

Masatoshi Nakamura

Takatoshi Matsuyama

Yusuke Ogawa

Yoichi Onosato

Tsubasa Sugiyama

Mitsuharu Matsumoto

A display apparatus of the present disclosure includes: a left eyepiece display unit including a left-eye image display device and a left eyepiece optical system guiding a displayed left-eye display image to a left eye; and a right eyepiece display unit including a right-eye image display device and a right eyepiece optical system guiding a displayed right-eye display image to a right eye, and an image magnification upon observation by both eyes is twice or more. The left eyepiece optical system and the right eyepiece optical system each include a plurality of single lenses, and at least one of the single lenses is a free-form surface lens including a resin material. At least one of the single lenses is arranged in at least one of an eccentric state or a rotated state with respect to an optical axis of the left-eye image display device or the right-eye image display device.

Display apparatus with non-overlap image region

Disclosed herein is a lens module for a projector of laser scanning type which is focus-free and has a short throw distance. In one example, a lens module includes a first optical member including a free-curved lens that passes a beam light reflected by a minute vibrating mirror; and a second optical member including a free-curved mirror to reflect the beam light which has passed through the first optical member, or a free-curved lens to pass the beam light which has passed through the first optical member. The beam light, which has been reflected by or has passed through the second optical member, has at the same position beam waists in horizontal and vertical directions perpendicular to a propagating direction of the beam light and also has beam radii coinciding in the horizontal and vertical directions.

Lens module and projector

An optical-fiber feedthrough formed of a metallic sleeveand an optical fiberfastened thereto. The the metallic sleevehas i) a sleeve main body having a first hollow portionwhich has an inner diameter larger than the outer diameter of the optical-fiber bare fiber uncovered portionin the optical fiberand into which the optical-fiber bare fiber uncovered portion is inserted, and a second hollow portionwhich communicates with the first hollow portion and has an inner diameter larger than the outer diameter of the resin-covered portionin the optical fiber and in which an inserted portion of the resin-covered portion and an optical-fiber bare fiber uncovered portion standing uncovered from the resin-covered portion to lead to the first hollow portion are held and ii) a first conical recessed portionwhich is provided on the first hollow portion side of the sleeve main body and to which the leading end portion of the optical-fiber bare fiber uncovered portion is uncovered.

Optical fiber feed-through

Growing community of inventors

Tokyo, Japan

Susumu Ichikawa