Abstract: An optical system affixed to an electronic apparatus is provided, including a first optical module, a second optical module, and a third optical module. The first optical module is configured to adjust the moving direction of a first light from a first moving direction to a second moving direction, wherein the first moving direction is not parallel to the second moving direction. The second optical module is configured to receive the first light moving in the second moving direction. The first light reaches the third optical module via the first optical module and the second optical module in sequence. The third optical module includes a first photoelectric converter configured to transform the first light into a first image signal.

Abstract: An optical system affixed to an electronic apparatus is provided, including a first optical module, a second optical module, and a third optical module. The first optical module is configured to adjust the moving direction of a first light from a first moving direction to a second moving direction, wherein the first moving direction is not parallel to the second moving direction. The second optical module is configured to receive the first light moving in the second moving direction. The first light reaches the third optical module via the first optical module and the second optical module in sequence. The third optical module includes a first photoelectric converter configured to transform the first light into a first image signal.

Abstract: A semi-vanadium(V) redox flow battery (semi-VRFB) including a positive electrolyte tank, a negative electrolyte tank and a cell stack. The positive electrolyte tank is stored with a positive electrolyte of V ions and the negative electrolyte tank is stored with a negative electrolyte of iodine(I)-vitamin C. The cell stack comprises a positive electrode, a negative electrode, an insulating film, a positive electrode plate, and a negative electrode plate. The negative electrode is made of carbon (C) sandwiched with titanium dioxide(TiO2), and can further comprise a metal or an alloy. The insulating film is located between the positive electrode and the negative electrode. The positive and negative electrode plates are located in front of the positive and negative electrodes, respectively. The positive and negative electrolytes flow through the positive and negative electrode plates to charge/discharge power by the electrochemical reactions of V ions and I-vitamin C at the positive and negative electrodes.

Abstract: A semi-vanadium (V) redox flow battery (semi-VRFB) includes a positive electrolyte tank, a negative electrolyte tank and a cell stack. The positive electrolyte tank is stored with a positive electrolyte of V ions; and the negative electrolyte tank is stored with an negative electrolyte of iodine (I)-vitamin C. The cell stack comprises a positive electrode, a negative electrode, an insulating film, a positive electrode plate and a negative electrode plate. The negative electrode is made of Carbon© and titanium dioxide (TiO2), which can further comprises a metal or an alloy. The insulating film is located between the positive electrode and the negative electrode. The positive and negative electrode plates are located in front of the positive and negative electrodes, respectively. The positive and negative electrolytes flow through the positive and negative electrode plates to charge/discharge power by the electrochemical reactions of V ions and I-vitamin C at the positive and negative electrodes.