Abstract: A photodynamic therapy and photoacoustic measurement coexistence system includes a pulsed light source configured to emit a pulsed light; a light-splitting unit, disposed on an optical path of the pulsed light, and configured to split the pulsed light into a first split light and a second split light; a reflecting unit, disposed on an optical path of the first split light, and configured to reflect the first split light into a reflected light; a first lens, disposed on an optical path of the reflected light, and configured to refract the reflected light to an irradiated surface to form a first light spot; and a second lens, disposed on an optical path of the second split light, and configured to refract the second split light to the irradiated surface to form a second light spot.

Abstract: An electronic device, such as a computer peripheral device, includes a comfortable holding-sheath. The holding-sheath has a sleeve portion that extends around the electronic device, and a holding portion graspable by a user to enable the user to more comfortably hold the device and facilitate its operation. The holding-sheath further has a protection portion extending therefrom so as to protect at least a button, switch, or connecting portion of the device from being contaminated.

Abstract: A support for a computer peripheral device has a first coupling portion arranged to couple to a second coupling portion of the computer peripheral device. The first coupling portion has a first magnetic pole, and the second coupling portion has a second magnetic pole. Therefore, the first and second magnetic pole can be strongly attracted each other so as to hold the peripheral device at a desired angular position, while still permitting the device to be pivoted to any other desired angular position.

Abstract: An electronic device, such as a computer peripheral device, includes a comfortable holding-sheath. The holding-sheath has a sleeve portion that extends around the electronic device, and a holding portion graspable by a user to enable the user to more comfortably hold the device and facilitate its operation. The holding-sheath further has a protection portion extending therefrom so as to protect at least a button, switch, or connecting portion of the device from being contaminated.