Abstract:
A light emitting device includes a plurality of light emitting modules and a plurality of voltage controlling circuits capable of being independently controlled. Each voltage controlling circuit includes a dynamic voltage controlling module, a current controlling module, and a luminance controlling module. The dynamic voltage controlling module is used for comparing a voltage level at a second terminal of the light emitting module and a voltage level of a reference voltage source, so as to output a first voltage. The current controlling module is used for adjusting a bias current flowing through the light emitting module, according to the first voltage. The luminance controlling module is used for comparing the first voltage with a clock signal, and for generating a pulse width modulation signal according to a result of the comparison, so as to dynamically control a duty cycle of the light emitting module.
Abstract:
A lighting apparatus having high operation reliability includes a first lighting unit with a first turn-on voltage and a second lighting unit with a second turn-on voltage greater than the first turn-on voltage. The lighting apparatus is put in use for generating output light according to a driving current flowing through the first lighting unit or the second lighting unit. The first lighting unit is capable of generating output light having a first brightness according to the driving current. The second lighting unit, electrically connected in parallel with the first lighting unit, is capable of generating output light having a second brightness according to the driving current. The second brightness is preferably identical to the first brightness.
Abstract:
A backlight module includes a plurality of light sources, a photo-sensor, and a control circuit. Each light source of the plurality of light sources can operate independently. The photo-sensor detects the luminance of the plurality of light sources to generate a luminance signal. The control circuit drives the plurality of light sources according to the luminance signal. When the backlight module is used in a scanning backlight LCD, the control circuit turns off parts of the plurality of light sources according to a display signal. When all of the plurality of light sources is turned on, the control circuit obtains the luminance signal so as to adjust the luminance of the backlight module according to the luminance signal.
Abstract:
An improved structure of meter, comprising a casing, a circuit board provided in the casing and having a connecting unit for connecting to an external machine, a central processor provided on the circuit board for transmitting the signals among individual unit and machine, a display unit for displaying the condition of the external machine, a correcting memory unit for detecting and memorizing the signals from various machines, a driving control unit for saving the variations in signals from various machines, a monitoring unit for presetting an alarm value and producing an alarm signal, a wireless transmitting unit for receiving the signals transmitted from the wireless controller, and an illuminating unit connected to the central processor for corresponding to both ends of the meter ring and the display unit. With the above arrangement, the meter of the present invention can be adapted to various kinds of machines and instruments.
Abstract:
This invention relates to a novel gauge lighting structure, mainly comprising the gauge panel, the lighting guide element and the lighting supply element. The gauge panel is very broadly used on the instrument cluster of the transportation vehicles. The gauge panel is an empty round housing with a glass pane mounted on the top for seeing through the signs or the record on the panel. The lighting guide element is a curve tube made of lighting sensitive material. The lighting supply element supplies the lighting from one end or two ends of the lighting guide tube. The lighting guide tube will absorb and transmit the lighting coming from the lighting supply and illuminate the inside of the gauge panel. The luminance of the lighting supply element is well controlled to regulate the sensitive lighting in the light guide tube to obtain clear signal signs and decorative blinking.
Abstract:
A lighting apparatus having high operation reliability includes a first lighting unit with a first turn-on voltage and a second lighting unit with a second turn-on voltage greater than the first turn-on voltage. The lighting apparatus is put in use for generating output light according to a driving current flowing through the first lighting unit or the second lighting unit. The first lighting unit is capable of generating output light having a first brightness according to the driving current. The second lighting unit, electrically connected in parallel with the first lighting unit, is capable of generating output light having a second brightness according to the driving current. The second brightness is preferably identical to the first brightness.
Abstract:
The present invention provides electromagnetic fitness shoes with a conductor structure and an insole. The shoes include a vamp, an inner space, a heel portion and a sole. The sole includes a big sole body, a middle sole and an insole. The insole is provided with conducting members, and the conductor structure electrically connects to a conducting member. The conducting member includes a conductive terminal and electric wire. The conductive terminal fitted with an electric connecting portion. The conductive terminal is assembled into the interleaving space formed by the heel portion and arranged along the interleaving space. The electric connecting portion is exposed upwards, and the conducting member of insole is made of conductive fabrics. The robustness is improved, and the service life of the electromagnetic fitness shoes is prolonged with better comfort and applicability.
Abstract:
This invention relates to a novel gauge lighting structure, mainly comprising the gauge panel, the lighting guide element and the lighting supply element. The gauge panel is very broadly used on the instrument cluster of the transportation vehicles. The gauge panel is an empty round housing with a glass pane mounted on the top for seeing through the signs or the record on the panel. The lighting guide element is a curve tube made of lighting sensitive material. The lighting supply element supplies the lighting from one end or two ends of the lighting guide tube. The lighting guide tube will absorb and transmit the lighting coming from the lighting supply and illuminate the inside of the gauge panel. The luminance of the lighting supply element is well controlled to regulate the sensitive lighting in the light guide tube to obtain clear signal signs and decorative blinking.
Abstract:
A cold-light indicating and warning meter for car mainly includes a plurality of concentric cold-light rings simultaneously provided on a surface panel of the meter. With a control unit of the meter, readings representing engine speed, car speed, engine temperature, fuel level, etc. are separately shown on the same meter via light and shade of the cold-light rings, so that a driver may have an idea about the conditions of the whole car by observing only one meter.
Abstract:
A light emitting device includes a plurality of light emitting modules and a plurality of voltage controlling circuits capable of being independently controlled. Each voltage controlling circuit includes a dynamic voltage controlling module, a current controlling module, and a luminance controlling module. The dynamic voltage controlling module is used for comparing a voltage level at a second terminal of the light emitting module and a voltage level of a reference voltage source, so as to output a first voltage. The current controlling module is used for adjusting a bias current flowing through the light emitting module, according to the first voltage. The luminance controlling module is used for comparing the first voltage with a clock signal, and for generating a pulse width modulation signal according to a result of the comparison, so as to dynamically control a duty cycle of the light emitting module.