Abstract: Disclosed is a light emitting module which includes a base and a plurality of light sources arranged on the base. Here, at least some of the plurality of light sources have a rectangular planar shape, and the plurality of light sources are arranged so that at least one of long-axis direction or short-axis direction of at least some of the plurality of light sources are alternately changed in at least one of row direction or column direction.

Abstract: Embodiments provide a light-emitting device package including a light source, a lens disposed on the light source, and a diffuser located on at least one of the interior of the lens or a light emission surface of the lens, so as to diffuse light. The diffuser includes at least one of a light dispersing agent distributed in the interior of the lens, or at least one light diffusion structure located on at least one of the outside or the inside of the light emission surface of the lens. The light diffusion structure includes a rough surface formed on the light emission surface of the lens.

Abstract: A light emitting device package includes a package body, first and second lead frames located on the package body, a light source mounted on at least one of the first or second lead frames, a lens located on the package body, and a wavelength conversion unit partially located on the package body between the package body and the lens.

Abstract: Disclosed are a light emitting device package and a light apparatus including the same. The light emitting device package according to an embodiment of the present disclosure includes a light emitting device that has a first side extending in a first direction and a second side extending in a second direction, and is disposed on a substrate, and a molding unit that has a shape of an isotropic lens disposed on the substrate to surround the light emitting device, wherein a square root of {(length of the first side)2+(length of the second side)2} is smaller than a diameter of the isotropic lens, and the length of the first side is at least 5/3 times more than the length of the second side.

Abstract: A light emitting device package includes: a light emitting device disposed on a substrate; a diffusion plate disposed on the substrate to surround the light emitting device; and a molding portion that is disposed on the substrate and has a shape of an aspheric lens whose center is recessed, The center of the molding portion is located on the same axis as the center of the light emitting device, and the diffusion plate may be interposed between the light emitting device and the molding portion. The molding portion having the shape of the aspheric lens whose center is recessed and the diffusion plate are employed to widely diffuse the light emitted from the light emitting device. Thereby, the efficiency of light can be increased, and manufacturing time and cost can be reduced. Simultaneously, a yellow ring phenomenon can be avoided.

Abstract: The present invention relates to a laser apparatus for inducing a photo-mechanical effect. More particularly, the present invention relates to a laser apparatus for outputting a pulsed laser beam and inducing a photo-mechanical effect by controlling pulse energy of the pulsed laser beam.

Abstract: The present invention relates to a laser apparatus for inducing a photo-mechanical effect. More particularly, the present invention relates to a laser apparatus for outputting a pulsed laser beam and inducing a photo-mechanical effect by controlling pulse energy of the pulsed laser beam.

Abstract: Disclosed are a lens unit and a method of manufacturing the same. The lens unit includes a lens part including a curved region having a predetermined curvature; and a support part including a hole, in which the lens part is installed, and attached to the lens part at a lateral side of the hole. The lens part having the curvature and the support part of the lens unit are formed in separate processes such that the hole is formed in the support part having the strength, and the lens part is formed by filling the hole with the lens part, so that the movement of resin caused by shrinkage of the lens part when the lens part is cured is inhibited, and the support part and the lens part does not form the layered structure, thereby allowing the lens unit to be formed with a thin thickness.

Abstract: Disclosed are a lens unit and a method of manufacturing the same. The lens unit includes a lens part including a curved region having a predetermined curvature; and a support part including a hole, in which the lens part is installed, and attached to the lens part at a lateral side of the hole. The lens part having the curvature and the support part of the lens unit are formed in separate processes such that the hole is formed in the support part having the strength, and the lens part is formed by filling the hole with the lens part, so that the movement of resin caused by shrinkage of the lens part when the lens part is cured is inhibited, and the support part and the lens part does not form the layered structure, thereby allowing the lens unit to be formed with a thin thickness.

Abstract: Disclosed is a servo control method in a disk type holographic data storage apparatus such as a CD-ROM or a DVD-ROM, which has free insertion and extraction characteristics, and the holographic data storage apparatus using the same. Data pixels can be precisely read during the reproduction of the stored holographic data. When a holographic data storage medium having the stored data is rotated, the position of the reproduced holographic data may be deviated from the pixel position in a detector due to errors. A servo control method is conducted to correct the position of the data pixel in the detector. A flat glass is positioned in a 4-f lens system and an angle of inclination of the flat glass is adjusted. The angle of the reference beam is changed while the position of the reference beam is maintained. The light pick-up device may be downsized without using an expensive device such as an acoustic-optic modulator or galvano-mirror.