Lg Electronics Inc.

Nam Sik Kim

Jun Ho Lee

Soon Hyung Kwon

Seung Gyu Lee

Ki So Bok

Han Kyoung Cho

Disclosed is a lighting optical system, including: a lighting optical system, comprising, a light separating means for separating incident light into three colored lights according to wavelength bands, and progressing the three separate colored lights for the same amount of distance from a light source of the incident light through different optical paths, and emitting the three separate colored lights to a first, a second and a third LCD, a first, a second and a third LCD for respectively receiving the three colored lights from the light separating means, and forming images therefrom; and a light combining means for synthesizing the three colored lights emitted from the first, second and third LCD, and outputting the synthesized light outside.

Lighting optical system

A projection lens unit and a thin projector using the same are disclosed. The projection lens unit includes a plurality of lens sets for emitting light carrying an image, and a reflector arranged between adjacent ones of the lens sets or at a downstream end of the lens sets, and adapted to change a direction of light incident on the reflector.

Projection lens unit and thin projector using the same

A projector including a shiftable projection lens unit is disclosed. The projector includes an illumination unit adapted to emit generated light, a micro device adapted to receive the light from the illumination unit, and to produce an image using the received light, a projection lens unit adapted to emit the image produced by the micro device, a reflector arranged at a downstream end of the projection lens unit, and adapted to change a direction of the light incident from the projection lens unit on the reflector such that the image is externally emitted, and a driving unit adapted to shift the projection lens unit and the reflector, thereby adjusting an emission direction of the externally-emitted image.

Projector

A thin projector is disclosed. The thin projector includes a housing having an upright panel shape, an illumination unit arranged in the interior of the housing, the illumination unit generating light and emitting the generated light, a micro device arranged in the interior of the housing, the micro device receiving the light from the illumination unit and producing an image using the received light, and a projection lens unit arranged in the interior of the housing, the projection lens unit including an emission unit adapted to externally emit the image produced by the micro device and arranged to be externally exposed through a front side of the housing.

Thin projector

Disclosed is a lighting optical system, including: a ighting optical system, comprising, a light separating means for separating incident light into three colored lights according to wavelength bands, and progressing the three separate colored lights for the same amount of distance from a light source of the incident light through different optical paths, and emitting the three separate colored lights to a first, a second and a third LCD, a first, a second and a third LCD for respectively receiving the three colored lights from the light separating means, and forming images therefrom; and a light combining means for synthesizing the three colored lights emitted from the first, second and third LCD, and outputting the synthesized light outside.

Growing community of inventors

Gyeonggi-do, South Korea

Nam Sik Kim