Lg Innotek Co., Ltd.

Seungman Jeong

Eunsung Seo

Hyunho Choi

Sanghun Lee

Disclosed is a projector, the projector including a light source, an illumination unit illuminating light incident from the light source, and a display device enabling to realize an image by receiving the light irradiated from the illumination unit, and whose center is positioned at an axis different from an optical axis of the illumination unit.

Projector

A projector optical system is provided, the system including an illumination unit including illumination lenses illuminating light downwards, a display device receiving light illuminated from the illumination lenses to enable to realize an image, projection lenses downwardly projecting light emitted from the display device to a screen, and a field lens changing an optical angle of the light illuminated from the illumination lenses and emitting the light to the display device, and changing an optical angle by receiving an image light of the display device and emitting the light to the projection lenses.

Projector optical system having field lens changing optical angle of illuminated light

The present disclosure relates to a polarization converting device and a method for manufacturing the same, wherein the polarization converting device includes a polarization separation unit aligned with a plurality of unit blocks including an optical separator transmitting a first polarization between an upper surface and a lower surface and reflecting a second polarization, and a phase retarder aligned in correspondence to an upper surface of each unit block of the polarization separation unit where a first region and a second region are alternately formed, wherein any one of the first and second regions of the phase retarder converts the polarized light while the other region emits the polarized light as it is.

Polarization converting device and method for manufacturing the same

A projection system is characterized by: a first light source unit and a second light source unit selectively driven in response to operation mode; a light transmitting unit transmitting light emitted from the first light source unit or the second light source unit in the form of surface light; an image generator generating an image in response to an image signal using the light transmitted from the light transmitting unit; and a projection lens system projecting the image by enlarging the image generated by the image generator and projecting the enlarged image.

Projection system having light sources selectively driven in response to an operation mode

Disclosed is a polarization conversion apparatus, the apparatus including a first optical device capable of angle-converting incident unpolarized light to allow a polarization direction to be emitted in mutually different first and second linear polarizations, an FEL (Fly Eye Lens) including first and second MLAs (Micro Lens Arrays) arrayed with first and second micro lenses, where first and second linear polarizations of the first optical device incident on the first micro lenses are divided and condensed on an upper side and a bottom side of the second micro lenses of the second MLA, and a second optical device converting the first and second linear polarizations condensed on the upper side or the bottom side of the second MLA at the FEL to any one polarization of the first and second linear polarizations and emitting the polarization.

Polarization conversion apparatus

A projection system is disclosed, the projection system including: an illumination unit; a PBS (Polarizing Beam Splitter) reflecting the light from the illumination unit, transmitting an image light, having a width larger than that of entrance pupil through which the image light is incident, and having a structure in which a width of an area facing projection lenses is larger than that of an area perpendicular to an area facing the projection lenses; a display device receiving the light reflected from the PBS and outputting the light as an image light; and a projection unit mounted with the projection lenses for projecting the image light outputted from the display device to a screen.

Growing community of inventors

Seoul, South Korea

Seungman Jeong