Abstract: An in-mold electronic (IME) device includes a curved substrate, a first conductive layer, a dielectric layer, a gap compensation layer, and a second conductive layer. The curved substrate has a first surface. The first conductive layer is disposed on the first surface. The dielectric layer is disposed on the first conductive layer and has a first thickness. The gap compensation layer is disposed on the first surface and connected to the dielectric layer. The gap compensation layer has a second thickness. The second conductive layer is disposed on the gap compensation layer and electrically connected to the gap compensation layer. A curvature radius of the curved substrate is c, a ratio of the second thickness to the first thickness is r, and c and r satisfy a relationship: r=1.5?0.02c±15%.

Abstract: A back-contact solar cell set includes a semiconductor substrate and a contact set. A back-surface of the semiconductor substrate includes a first cell region, a second cell region and a first outer-isolation region which separates said two cell regions. The first outer-isolation region has a first basin region and a first highland region which is higher than the first basin region. The contact set includes a first connecting electrode which covers the first basin region. The first cell region and the second cell region are electrically connected through the first connecting electrode.

Abstract: Disclosed is a thin LED lens including a lens body being an inverted frusto-conical shaped structure, a light exit surface formed on a non-frustum end of the lens body, and an accommodating chamber formed at a frustum end of the lens body, characterized in that the accommodating chamber has a primary accommodating chamber and at least one secondary accommodating chamber disposed around the primary accommodating chamber, such that the primary accommodating chamber and the secondary accommodating chamber are arranged in a concentric and radial shape, and the secondary accommodating chamber is in form of a circular groove. The thin LED lens can be made thinner to achieve the effects of facilitating the manufacture, reducing the material, and providing a better light distribution.

Abstract: A lens structure of a light emitting diode (LED) is provided, which includes a body. An outer surface of the body is formed by connection of an edge of a light input surface and an edge of a light output surface. A recess is formed convergently on the central part of the light input surface toward the light output surface. A divergent plane is formed on the end position of the recess. The divergent plane is a round surface with a radius of 0.05 mm to 1 mm. The divergence of the central light emitting from the LED is reinforced via the light output surface, and the amount of the central light emitting from the LED is limited by the area of the divergent plane. Accordingly, the difference of luminous intensity between the central part and the edge of the lighting area can be improved, thereby providing effects of uniform illumination.

Abstract: An optical lens for forming a square light pattern includes a lens body, having a light-exit surface at the top of the lens body, an incident surface at the bottom of the lens body, and a containing space concavely formed at a center position of the incident surface for containing a light emitting source, and an edge line of the incident surface is enclosed into a geometric square pattern, and a corner of the geometric square pattern is designed in an arc shape, so that after a light emitted from the light emitting source passes through the lens body, the light is projected to a target projection surface to show a square light pattern, and the optical lens can be applied to a backlight module to provide a full-screen uniform light intensity of illuminated areas.

Abstract: Disclosed is an optical lens for guiding light of an LED to produce a quasi-elliptical light pattern, and the optical lens has a lens body. The optical lens comprises an emitting surface and an incident surface. The emitting surface is a curved surface, and an illumination side of the emitting surface is in a quasi-elliptical shape with a long axis and a short axis, and the length of the long axis is a, and the length of the short axis is b, and the lens body has a lens height c. The length a of the long axis, the length b of the short axis, and the lens height c satisfy the relations of 1<a/b?1.67 and 2?a/c?6. Therefore, an LED backlight source or a general illumination with a wide scope of applicability, a reduced number of LEDs and an improved illuminating uniformity.

Abstract: A combined calculator and puzzle game device including a calculator cover-board which is provided with guide pieces confined to intersecting guide grooves. Game pieces which have projecting necks are mounted on the guide pieces by inserting the projecting necks into the guide grooves allowing them to be slid along the guide grooves, but not be removed. The game pieces can be rearranged on the cover board to bear a particular pattern or a combination of characters. When the game pieces are depressed, they push rubber keys placed therebelow so as to operate the calculator.