Abstract: A transparent lateral-light-source structure comprises an invisible light source; and a plate body, comprising a transparent plate, having a rear end face being disposed with a plurality of convex-concave structures; a coating layer, capable of reflecting invisible light, allowing visible light, to pass through, and one end face of the coating layer being coupled to the rear end face; and a transparent material layer, coupled to another end face of the coating layer, and the transparent material layer filling and leveling up the plurality of convex-concave structures; wherein, when invisible light emitted from the invisible light source is projected into the transparent plate, the incident invisible light is reflected by the plurality of convex-concave structures and the coating layer, and further projected out of a front end of the transparent plate, and visible light can pass through the plate body.

Abstract: An audio output apparatus includes: an audio codec outputting an analog audio signal corresponding to a digital audio signal from a system controller; a switch unit having a first end coupled to the audio codec through a capacitor, and a grounded second end; and a switch controller triggered by a trigger signal to output a control signal to a control end of the switch unit such that the switch unit couples the capacitor to ground in response to the control signal. The trigger signal is generated by one of the system controller, the audio codec, and a power circuit supplying electric power to the system controller, the audio codec and the switch controller upon occurrence of a condition associated with pop noise, and is outputted to the switch controller before the pop noise is generated, such that the pop noise is conducted to ground via the switch unit.

Abstract: An audio output apparatus includes: an audio codec outputting an analog audio signal corresponding to a digital audio signal from a system controller; a switch unit having a first end coupled to the audio codec through a capacitor, and a grounded second end; and a switch controller triggered by a trigger signal to output a control signal to a control end of the switch unit such that the switch unit couples the capacitor to ground in response to the control signal. The trigger signal is generated by one of the system controller, the audio codec, and a power circuit supplying electric power to the system controller, the audio codec and the switch controller upon occurrence of a condition associated with pop noise, and is outputted to the switch controller before the pop noise is generated, such that the pop noise is conducted to ground via the switch unit.

Abstract: An electromagnetically actuated adjusting apparatus for lens is disclosed. The adjusting apparatus comprises a body capable of furnishing a lens inside, at least one permanent magnet, a first magnetic conductor and a second magnetic conductor. The first and the second magnetic conductors are respectively wound with a plurality of coils. The permanent magnet is adjoined to the body and has a first polarity and a second polarity opposing each other. The first magnetic conductor has at least a first extension member provided opposite to the first polarity. The second magnetic conductor has at least a second extension member provided opposite to the second polarity. The first extension member and the second extension member can better converge magnetic flux lines emanating from the coils when charged to the positions nearing the two polarities of the permanent magnet so high-efficiency focusing and zooming of lens can be achieved.

Abstract: An optical pen comprising a shaft, a pen tip, a light source and an optical sensor. The shaft extends a predetermined length along an axial direction. The pen tip is arranged at one end of the shaft and situated in the same axial direction. The light source produces light that illuminates an outlying surface near the pen tip to generate a reflected imaging light traveling along a light path. The light path has at least a portion near the pen tip overlapping with said axial direction. The optical sensor is disposed in the light path to receive the imaging light and convert it into electrical signals. In light that the light path that captures imaging light from the optical pen is coaxial with the pen tip, when the optical pen is used for writing, the traveling speed, direction, and distance of images captured by the optical sensor are identical to those of the pen tip.

Abstract: A light collector for an LED array is provided. The light collector includes a transparent main body having a first portion and a second portion opposite to each other. The first portion has at least one first semi-cylinder and the second portion has a plurality of second semi-cylinders, and the first semi-cylinders are perpendicular to the second semi-cylinders. The number and the respective geometric arrangement of the first semi-cylinders and the second semi-cylinders are determined according to the LED array. The whole configuration of the light collector can be optimized in order that a desired illuminating area can be produced when the light of the LED array passes through the light collector.

Abstract: An illuminating device includes a light guiding pipe confining a passage, a reflector mounted at a light input end of the passage, and a quarter-wavelength plate and a reflective polarizer which are disposed in sequence relative to the passage. The reflector reflects light that travels from the light output end to the light input end back to the light output end. The polarizer allows light of a first polarization state to pass therethrough while reflecting light of a second polarization state back into the passage via the light output end, whereupon the light of the second polarization state is converted by the quarter-wavelength plate into the light of the first polarization state for passage through the polarizer.

Abstract: An illuminating device includes a light guiding pipe confining a passage, a reflector mounted at a light input end of the passage, and a quarter-wavelength plate and a reflective polarizer which are disposed in sequence relative to the passage. The reflector reflects light that travels from the light output end to the light input end back to the light output end. The polarizer allows light of a first polarization state to pass therethrough while reflecting light of a second polarization state back into the passage via the light output end, whereupon the light of the second polarization state is converted by the quarter-wavelength plate into the light of the first polarization state for passage through the polarizer.