Abstract: A spring configured to be fixed to a housing and nested within a dial that is rotatable about the spring. The dial has a plurality of spaced apart inwardly facing teeth that are adjacent the spring. The spring is configured to facilitate rotation of the dial about the spring. The spring includes a central body having at least one anchor configured to connect the spring to the housing. The spring also includes at least one arm having a first end connected to the central body. The spring also includes a second end of the arm that is connected to a bulb. The bulb can be enclosed and include an exterior surface with a node that is on distal from the central body. The node is sized to fit in a space between adjacent teeth. The enclosed bulb biases the node toward the spaces between the teeth.

Abstract: An oil filter wrench having a base, a main gear, a plurality of claws each having a gear portion and an arm configured to engage an oil filter. The gear portions are rotatably disposed within the base and configured to engage the main gear such that when the main gear rotates; the arms correspondingly extend or contract relative to the base. The oil filter wrench also includes a main spring. The main spring is disposed within a cavity defined by the main gear. The main spring is configured to selectively bias the main gear toward rotation in either a first direction or a second direction opposite to the first direction. The oil filter wrench is characterised in that it also includes a switching mechanism a switching mechanism. The switching mechanism is configured to selectively toggle between a first position and a second position. In the first position, the switching mechanism engages a first tine of the main spring such that the main gear is biased to rotate in the first direction.

Abstract: An adjustable sander having a body and a flexible base. The flexible base includes a first end and a second end spaced apart from one another. The first end and second end are each pivotally attached to the body. The flexible base is configured to move between a concave configuration, a neutral configuration, and a convex configuration relative to the body. The adjustable sander further includes a removable sanding surface affixed to a surface of the flexible base that is distal from the body. The adjustable sander also includes a locking mechanism configured to selectively hold the flexible base in a desired concave, neutral or convex configuration. The locking mechanism is characterized in that it includes an axial having a head and a shaft having a series of shaft notches.

Abstract: An oil filter wrench having a base, a main gear, a plurality of claws each having a gear portion and an arm configured to engage an oil filter. The gear portions are rotatably disposed within the base and configured to engage the main gear such that when the main gear rotates; the arms correspondingly extend or contract relative to the base. The oil filter wrench also includes a main spring. The main spring is disposed within a cavity defined by the main gear. The main spring is configured to selectively bias the main gear toward rotation in either a first direction or a second direction opposite to the first direction. The oil filter wrench is characterised in that it also includes a switching mechanism a switching mechanism. The switching mechanism is configured to selectively toggle between a first position and a second position. In the first position, the switching mechanism engages a first tine of the main spring such that the main gear is biased to rotate in the first direction.

Abstract: A method for manufacturing an apicoectomy guide plate includes: a) performing scanning to obtain a tooth jaw image model, a soft tissue image model, an alveolar bone image model, a tooth crown image model, and a tooth root image model that is defined with at least one affected area; b) calculating position relations of the tooth jaw image model corresponding to the soft tissue image model and the alveolar bone image model to determine at least one osteotomy and apicoectomy procedure, and establishing a guide plate model corresponding to the tooth jaw image model and the osteotomy and apicoectomy procedure; and c) outputting the apicoectomy guide plate, which includes a connecting portion corresponding to the soft tissue image model and the tooth crown image model, and at least one positioning portion corresponding to the affected area and comprising at least one pre-drilled hole.

Abstract: A method for manufacturing an apicoectomy guide plate includes: a) performing scanning to obtain a tooth jaw image model, a soft tissue image model, an alveolar bone image model, a tooth crown image model, and a tooth root image model that is defined with at least one affected area; b) calculating position relations of the tooth jaw image model corresponding to the soft tissue image model and the alveolar bone image model to determine at least one osteotomy and apicoectomy procedure, and establishing a guide plate model corresponding to the tooth jaw image model and the osteotomy and apicoectomy procedure; and c) outputting the apicoectomy guide plate, which includes a connecting portion corresponding to the soft tissue image model and the tooth crown image model, and at least one positioning portion corresponding to the affected area and comprising at least one pre-drilled hole.

Abstract: An LED light source includes a connecting body and a mounting base. The mounting base includes a mounting platform having a top surface, and an LED unit connected to the top surface, the top surface having good heat-dissipating properties. The LED unit includes LEDs, an LED driving device, and a circuit board. The circuit board includes a first portion for mounting the driving device and a second portion for mounting the LEDs. The first portion is connected to the top surface. The second portion is bent away from the first portion; the LEDs being mounted to outer surface of the integral second portion.

Abstract: An LED light source includes a connecting body and a mounting base. The mounting base includes a mounting platform having a top surface, and an LED unit connected to the top surface, the top surface having good heat-dissipating properties. The LED unit includes LEDs, an LED driving device, and a circuit board. The circuit board includes a first portion for mounting the driving device and a second portion for mounting the LEDs. The first portion is connected to the top surface. The second portion is bent away from the first portion; the LEDs being mounted to outer surface of the integral second portion.

Abstract: An LED lamp includes a supporting base and a reflector having a plurality of reflecting tabs mounted thereon. The reflector includes many circumferentially arranged tabs around a central axis of the supporting base. Many LED light sources are mounted in the supporting base and divided into an outer array and an inner array. Each reflecting tab has a fixed end connected to the supporting base and a free end distant from the supporting base. Each reflecting tab extends upwardly and outwardly from a central portion of the supporting base toward an outer periphery thereof. The inner array of the LED light sources is surrounded by the reflector. A hole is defined in a free end of each reflecting tab and aligned with one of the LED light sources of the outer array. A lamp mounting base is also provided.

Abstract: A light emitting diode (LED) package includes a substrate with a flat top surface, an LED chip mounted on the substrate, and a group of blocking structure and encapsulation body. The LED chip electrically connects with the substrate. The blocking structure surrounds the LED chip. The encapsulation body covers the LED chip. A bottom of the encapsulation body is enclosed by the blocking structure; the encapsulation body has a light outputting surface, and an outer surface of the blocking structure is continuously connected with the light outputting surface. The light outputting surface has a semispherical profile. An angle between a normal line extending from the outer surface of the blocking structure and perpendicular to the substrate and a tangent line tangent to the light outputting surface at a point thereof adjacent to the outer surface is smaller than 60 degrees.

Abstract: An LED (light emitting diode) lighting apparatus includes an LED, a light adjusting device and a shell. The LED includes a main lighting surface and a heat dissipating surface. The shell receives the LED and the light adjusting device therein, the shell having a light emitting window for light emitted from the LED to transmit therethrough after the light is directed by the light adjusting device. The heat dissipating surface of the LED connects the light emitting window, and heat generated by the LED is transferred from the heat dissipating surface to the light emitting window to prevent snow from accumulating on the light emitting window.

Abstract: An LED light source device includes an LED light source, a first translucent structure covering the LED light source and a second translucent structure covering the first translucent structure. An interior of the first translucent structure has light scattering powder distributed therein. The LED light source is embedded in the first translucent structure. The LED light source is covered by the light scattering powder. The second translucent structure has a radius of R and an index of refraction of N1, while the first translucent structure has a radius of r, wherein R, r and N1 satisfy the following relation: N1<R/(2r?R).

Abstract: The present invention provides a lighting control method by multi-tone multi-frequency signal, which includes: encoding a control signal into a multi-tone multi-frequency signal in a control unit; transmitting the multi-tone multi-frequency signal to a receiving unit; decoding the multi-tone multi-frequency signal to generate a command; and controlling a lighting status of at least one lighting device according to the command. The present invention also provides a device using the aforementioned lighting control method.

Abstract: An LED lamp includes a supporting base and a reflector having a plurality of reflecting tabs mounted thereon. The reflector includes many circumferentially arranged tabs around a central axis of the supporting base. Many LED light sources are mounted in the supporting base and divided into an outer array and an inner array. Each reflecting tab has a fixed end connected to the supporting base and a free end distant from the supporting base. Each reflecting tab extends upwardly and outwardly from a central portion of the supporting base toward an outer periphery thereof. The inner array of the LED light sources is surrounded by the reflector. A hole is defined in a free end of each reflecting tab and aligned with one of the LED light sources of the outer array. A lamp mounting base is also provided.

Abstract: An exemplary illumination device includes a lamp and an air purifying apparatus received in the lamp. The lamp includes a base, a lamp post, a lamp cover, and a light source in the lamp cover. The air purifying apparatus is received in the base. A plurality of inlets and outlets is defined in the base. The inlets and outlets communicate with the air purifying apparatus. Air near the inlets is drawn into the air purifying apparatus via the air inlets, and the air is exhausted out of the base via the air outlets after purified by the air purifying apparatus.

Abstract: The present invention discloses a remote controllable video display system and a controller therefor, wherein positional information is generated by a sensor according to light from a light source. The controller includes a button with a predetermined function, wherein when the button is pressed or released, the status of the button (pressed or released) is outputted but (i) the positional information is not outputted or not processed within a predetermined period of time; or (ii) the positional information is not outputted or not processed when the remote controller has an acceleration larger than a predetermined value. Or, when the button is pressed once, the controller outputs double-click or multiple-click action information.

Abstract: A light emitting diode (LED) package includes a substrate with a flat top surface, an LED chip mounted on the substrate, and a group of blocking structure and encapsulation body. The LED chip electrically connects with the substrate. The blocking structure surrounds the LED chip. The encapsulation body covers the LED chip. A bottom of the encapsulation body is enclosed by the blocking structure; the encapsulation body has a light outputting surface, and an outer surface of the blocking structure is continuously connected with the light outputting surface. The light outputting surface has a semispherical profile. An angle between a normal line extending from the outer surface of the blocking structure and perpendicular to the substrate and a tangent line tangent to the light outputting surface at a point thereof adjacent to the outer surface is smaller than 60 degrees.

Abstract: An LED (light emitting diode) lighting apparatus includes an LED, a light adjusting device and a shell. The LED includes a main lighting surface and a heat dissipating surface. The shell receives the LED and the light adjusting device therein, the shell having a light emitting window for light emitted from the LED to transmit therethrough after the light is directed by the light adjusting device. The heat dissipating surface of the LED connects the light emitting window, and heat generated by the LED is transferred from the heat dissipating surface to the light emitting window to prevent snow from accumulating on the light emitting window.

Abstract: An LED light source device includes an LED light source, a first powder layer located at a light path of the LED light source and a lamp shell located around the LED light source and the first powder layer. The lamp shell defines a receiving room. A second powder layer is formed on an inner surface of the lamp shell. The first powder layer and the second powder layer each have a characteristic of scattering light.

Abstract: The present invention discloses a remote controllable video display system and a controller therefor, wherein positional information is generated by a sensor according to light from a light source. The controller includes a button with a predetermined function, wherein when the button is pressed or released, the status of the button (pressed or released) is outputted but (i) the positional information is not outputted or not processed within a predetermined period of time; or (ii) the positional information is not outputted or not processed when the remote controller has an acceleration larger than a predetermined value. Or, when the button is pressed once, the controller outputs double-click or multiple-click action information.