Samsung Electronics Co., Ltd.

Chang Mo Lee

Sang Ho Yoon

Hyung Jin Kim

Kyeong Ik Min

Ki Un Lee

Jin Pyo Hong

Dong Yeoul Lee

Chang Sub Lee

Jung Kyung Kim

Seung Gyun Jung

Sang Bin Song

Gi Hoon Kim

Dae Il Seok

Bo Hyun Jo

Joung Wook Park

Jae Yeong Joo

Provided is a condensing lens condensing a light from a light source, and a lighting device equipped with the condensing lens. The condensing lens may enable a light to be selectively incident upon a plurality of first incident portions based on an emission angle, may totally-reflect, using a second incident portion, the light refracted by the plurality of first incident portions, and may refract the totally-reflected light using a third incident portion.

Condensing lens and lighting device equipped with said condensing lens

A lens is provided in an asymmetric shape including at least two curved surfaces with different light distribution angles. Therefore, uniformity ratio of illuminance and coefficient of utilization (CU) may be increased while reducing dazzle. When a lighting apparatus including the lens is used as a street light, light directly incident to a driver is minimized, thereby reducing dazzle to the driver. During a night drive, brightness at a far forward position of the driver may be increased. In addition, light emitted toward a street may be increased while reducing light emitted toward a sidewalk. As a result, uniformity ratio of illuminance and coefficient of utilization (CU) may be increased. Also, light pollution may be reduced.

Asymmetric type lens and street lamp including the same

There are provided an optical lens and a light source module, and a street lamp having the same. The optical lens includes a concave dome shaped inner surface formed to have a similarly-oval shaped lower surface, and formed to include a plurality of light incident surfaces formed to be stepped along the inner surface thereof and stepped surfaces connecting the plurality of light incident surfaces to one another; and an outer surface formed to surround the inner surface.

Optical lens and light source module, and street lamp having the same

Growing community of inventors

Chuncheon-si, South Korea

Chang Mo Lee