Samsung Electronics Co., Ltd.

Vadim Viktorovich Pozdnyakov

Alexey Mikhailovich Khorokhorov

Gi-Cherl Kim

Ju-Young Yoon

Alexander Fedorovich Shirankov

Seok-il Yoon

Gyu-hwan Hwang

Oleg Vladimirovich Rozhkov

Maxim Evgein'evich Frolov

Alexandr F Shirankov

Maxim Evgein'evich Erolov

A lens for reforming radiation from a light-emitting diode having a first convex surface for admitting radiation path from the light-emitting diode that is close to the axis of the diode and a cylindrical surface for admitting radiation that makes a wider angle with the axis of the diode, a conical surface disposed to receive and totally internally reflect radiation admitted by said convex surface and re-radiate it at an angle substantially normal to the axis of the diode and a curved surface for receiving and re-radiating at an angle substantially normal to the axis of the diode radiation admitted by the cylindrical surface.

Lens for reforming light-emitting diode radiation

Lens

A hybrid lens and a projection optical system having the hybrid lens are provided. The projection optical system includes a hybrid lens that is positioned along an optical path between a fluorescent surface and a screen onto which light emitted from the fluorescent surface is projected to form an image. The hybrid lens includes a spherical lens and an aspherical lens formed of plastic on at least one surface of the spherical lens. Accordingly, aberration can be corrected to improve image quality.

Hybrid lens and projection optical system including the same

Growing community of inventors

Moscow, Russia

Vadim Viktorovich Pozdnyakov