Abstract:
Disclosed are an illumination unit having an optical system with improved aberration and a holographic three-dimensional image display device. The illumination unit includes: a coherent light source; an optical device for projection which focuses light emitted from the coherent light source; and a holographic optical device which is arranged between the coherent light source and the optical device for projection and has a coherent pattern formed to diffract the light emitted from the coherent light source to provide the diffracted light to the optical device for projection. The coherent pattern of the holographic optical device may include reverse aberration information which can offset aberration of the optical device for projection.
Abstract:
Disclosed is a display including an electro-wetting prism array. The display according to an embodiment of the present invention includes a 2D display providing an image using light from a light source; a prism array; and an optical element increasing refractive power of light transmitted through itself, wherein refractive power of one or more prisms is controlled in the prism array in real time. In the display, the optical element may be formed at the front or the back of the prism array. The optical element is one of a group consisting of a convex lens, a Fresnel lens, a holographic optical element (HOE), a diffractive optical element (DOE), a second electro-wetting prism array, a liquid crystal lens, and an optical lens which acts as a lens. The convex lens may be a variable focus lens.
Abstract:
Disclosed are an optical addressing space light modulator which is divided into segments, a holographic 3D image display device thereof, and a method thereof. The holographic 3D image display device comprises: a record light source, an EASLM, a reproduction light source, an OASLM, a scanning optical unit, and a Fourier lens. The record light source emits a record beam. The EASLM modulates the record beam according to the hologram information which is divided into a plurality of spaces. The reproduction light source emits a reproduction beam. The OASLM comprises the segments which modules the reproduction beam according to the hologram information of the record beam by collecting the record beam modulated by the EASLM. The scanning optical unit transmits the record beam to a position which corresponds to the segments of the OASLM. The Fourier lens generates a 3D image by focusing the reproduction beam in a predetermined space.
Abstract:
A complex spatial light modulator and a holographic 3D image display device having the same are disclosed. The disclosed complex spatial light modulator can simultaneously modulate the phase and amplitude of light by including: a spatial light modulator which modulates the phase or the amplitude of light; and a light combiner which modulates the amplitude of light by a pair of lens arrays and a grating arranged in between the pair of lens arrays.
Abstract:
PURPOSE: A variable liquid prism array and a manufacturing method thereof are provided to use an electrode wiring layer as a mask, thereby forming an electrode without a separate mask and preventing misalignment. CONSTITUTION: A variable liquid prism array comprises a substrate (10), a wiring layer a conductive line portion formed on the substrate and a non-conductive line area in which the conductive line portion is not arranged; partitions (25) provided on the wiring layer; cells (28) divided by the partitions; a first fluid included within the cells; a second fluid provided on the first fluid; a plurality of side electrodes (31~34) which are provided in the side of the partitions and are spaced apart from each other along an area corresponding to the non-conductive line area of the wiring layer; and an upper electrode which are arranged to be spaced apart from the side electrodes in the upper part of the partitions.
Abstract:
PURPOSE: A variable micro lens, a micro lens array including the same, and a three-dimensional display are provided to make a perfect image on the area of an image pickup device corresponding to each micro lens. CONSTITUTION: A micro lens (L1) includes a first to a fourth electrode (62, 64, 66, 68). The first and a third electrode are separated from each other. A second electrode and the fourth electrode are vertically located from the first and the third electrode. The second and the fourth electrode are separated from each other. The first and the third electrode are located between the second electrode and the fourth electrode. The second electrode includes a curved first part (64A). The fourth electrode includes a curved second part (68A). The first and the second part are curved inside a unit cell. The first part of the second electrode is overlapped with each end of the first and the third electrode. The second part of the fourth electrode is overlapped with other end of the first and the third electrode.
Abstract:
PURPOSE: A light refraction controlling panel, a 3d-display comprising the same and a method for operating 3d-display are provided to control the direction of light by using an electro-wetting prism. CONSTITUTION: A partition wall is formed on a transparent substrate. A first to a fourth electrode(62,64,66,68) are formed in the partition wall. Each electrode is separated. An electro-wetting prism is formed inside the partition wall. The electro-wetting prism refracts incident light in a given direction. An isolation layer is formed between the partition wall and the first to the fourth electrode and the electro-wetting prism.