Abstract: Disclosed are an on-demand shared data caching method, a computer program, and a computer readable medium applicable for distributed deep learning computing. The method includes a step of dynamically building a distributed shared memory cache space, in which a distributed shared memory deployment and data file access management module is added to a deep learning framework to build the distributed shared memory cache space by a memory set of a multiple of computing nodes of a cluster computer; and a distributed deep learning computing step, in which the computing node overrides a Dataset API of the deep learning framework to execute the distributed deep learning computing. When reading a data file, if the data file exists in the distributed shared memory cache space, then it will be accessed directly, or else it will be obtained from an original specified directory location and stored in the distributed shared memory cache space.

Abstract: The invention is related to an optical lens, a light-emitting diode optical component and a light-emitting diode road lamp. The optical lens formed as a semi-spherical shape includes an uplifting spherical surface and a bottom surface corresponding to the spherical surface. The bottom surface includes an elongate recess concave to the spherical surface and formed with an inner surface corresponding to the spherical surface and two vertical side surfaces adjacent to the inner surface. The inner surface of the elongate recess includes a similar Gaussian distribution curve provided on a section parallel to the vertical side surfaces. A focus is contained in a center of the bottom surface. A light-emitting diode is disposed below the focus of the optical lens. The special outline structure of the optical lens can provide a uniform luminance distribution on an illuminating area.

Abstract: The present invention is related to a light-guiding element, a light-emitting diode (LED) lamp tube and an illumination lamp. The present invention utilizes a light-guiding element disposed on a light-emitting unit of the LED lamp tube. The light-guiding element includes a first surface and a second surface. The first surface is spaced with a plurality of reflecting units in a longitudinal direction thereof, and the second surface is partitioned with a reflecting area and non-reflecting areas corresponding to the reflecting units of the first surface. The light-emitting unit includes LEDs correspondingly attached to the non-reflecting areas of the second surface of the light-guiding element. An elongated light-emitting surface can be uniformly generated from the LED lamp tube by utilizing a destroyed total reflection phenomenon caused by lights in between the reflecting units of the first surface and the reflecting area of the second surface.

Abstract: A light-emitting diode road lamp structure includes a seat body and a plurality of tube bodies. The seat body includes an accommodation space to accommodate a circuit unit. The tube bodies are juxtaposedly connected to an outside of the seat body, a plurality of light-emitting (LED) units accommodated in the tube bodies are electrically connected to the circuit unit, and an interspace is formed between each of the tube bodies and the tube body abutted therewith, thereby providing the road lamp with a better heat-dissipation efficiency by the air flow passing through the interspace, maintaining the luminous efficiency of the LED units, and extending the life span of the LED units.

Abstract: Disclosed are a semiconductor nanowire solid state optical device and a control method thereof. The device comprises a nanowire, a first electrode, a second electrode, an electrical circuit and a mechanical micro device. The nanowire has a first end and a second end. The first electrode is coupled to the first end. The second electrode is coupled to the second end. The electrical circuit is coupled to the first electrode and the second electrode. The mechanical micro device is conjuncted with the nanowire for applying an external force to the nanowire to form highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) in the nanowire. The HOMO and LUMO are employed as an n-type semiconductor and a p-type semiconductor, respectively. The nanowire is a semiconductor when an external force is applied thereto.

Abstract: The invention is related to an optical lens, a light-emitting diode optical component and a light-emitting diode road lamp. The optical lens formed as a semi-spherical shape includes an uplifting spherical surface and a bottom surface corresponding to the spherical surface. The bottom surface includes an elongate recess concave to the spherical surface and formed with an inner surface corresponding to the spherical surface and two vertical side surfaces adjacent to the inner surface. The inner surface of the elongate recess includes a similar Gaussian distribution curve provided on a section parallel to the vertical side surfaces. A focus is contained in a center of the bottom surface. A light-emitting diode is disposed below the focus of the optical lens. The special outline structure of the optical lens can provide a uniform luminance distribution on an illuminating area.

Abstract: The invention is related to an optical lens, a light-emitting diode optical component and a light-emitting diode illumination lamp. The optical lens formed as a semi-spherical shape includes an uplifting spherical surface and a bottom surface corresponding to the spherical surface, and the bottom surface includes an inward space concave to the spherical surface and formed with a free surface corresponding to the spherical surface. The free surface is axially-symmetrical formed as rotational molding with respect to an axis connected from the focus to a center point of the spherical surface, to form the free surface with a similar Gaussian distribution curve provided on a section vertically cut from the spherical surface to the bottom surface. A light-emitting diode is disposed below the focus of the optical lens. The special outline structure of the optical lens can provide a uniform luminance distribution on an illuminating area.

Abstract: A diffusion plate having microstructures with two lengthy and slant faces and its relevant backlight module as well as optical device includes an optical base and a diffusion plate with pluralities of microstructures; wherein, the microstructures on the optical base are located by different allocation, and an angle is defined by the cooperation of two longitude and slant faces of each microstructure. The above arrangements substantially impinge on controlling the light return and transmission of the backlight module or the optical device including a brightness enhancement film, a light source, and a reflecting plate disposed thereon, thereby increasing the uniformity of backlight through the optical reflection and refraction.

Abstract: An optical sheet adapted to relevant backlight module and LCD includes a light guiding side, a light emitting side, and a plurality of microstructures disposed on the light emitting side. Each of the microstructures is formed in an aspheric contour. At an intersection of an X-line and Y-line of each microstructure cross-sectionally defines a first bottom joint, which extending toward opposing sides of the X-line to define two symmetrical second bottom joints and upwardly extending from the Y-line to construct a top point. A first arc route is formed between the top point and the second bottom joint, and a second straight route is formed between the top point and the second bottom joint. A third route is defined round a cross-sectional outside contour of each microstructure, which is located within an area surrounded by the first and the second routes.

Abstract: A method to generate random and density controllable dot patterns includes steps of dividing a 2D domain into multiple cell units; determining dot density in each cell; creating at random initial location of dots in each cell; solving the force operation cut radius of the dot; setting up a residual force; solving the force control parameter in the cell; performing the force operation for the cell; making the dots in the cell to achieve balanced positions after repeated operation; and completing the generation of a dot-pattern within a 2D domain.

Abstract: A light guide plate having micro-reflectors is to increase luminance of the light guide plate by changing light route. The light guide plate includes an incidence plane, an illuminating plane, and a bottom. Each of the micro-reflectors is disposed at the bottom and intersected with the light guide plate in a direction heading for a recess provided at the bottom of the light guide plate, and comprises a light reflection plane located between the incidence plane and the illuminating plane to define an angle ?. The light reflection plane is an arc quadrilateral or a sector when observed from top of the illuminating plane. The arc quadrilateral has two concentric arc sides parallel with each other.

Abstract: A light guide plate having micro-reflectors is to increase luminance of the light guide plate by changing light route. The light guide plate includes an incidence plane, an illuminating plane, and a bottom. Each of the micro-reflectors is disposed at the bottom and intersected with the light guide plate in a direction heading for a recess provided at the bottom of the light guide plate, and comprises a light reflection plane located between the incidence plane and the illuminating plane to define an angle ?. The light reflection plane is an arc quadrilateral or a sector when observed from top of the illuminating plane. The arc quadrilateral has two concentric arc sides parallel with each other.

Abstract: A light guide plate having micro-reflectors is applied to a back light module of a liquid crystal display. A light source is disposed on one side of the light guide plate. Each of the micro-reflectors is shaped like a pyramid protruding from the bottom of the light guide plate and comprises a transparent plane and two reflection planes. The transparent plane is disposed at right angle to the bottom of the light guide plate, facing and comparatively nearer to the light source. Both the reflection planes are inclined to the bottom of the light guide plate, facing the illuminating surface of the light guide plate and comparatively farther from the light source to reflect rays of light upward to increase luminance of the light guide plate, and thereby changing arrangement of the micro-reflectors to improve consistent luminance of the light guide plate.