Abstract: The present disclosure relates to a composition for preventing, improving or treating a metabolic syndrome such as obesity, diabetes, hyperlipidemia and fatty liver, comprising a combination of a Lemon balm extract and a corn silk extract as a natural extract as an active ingredient.

Abstract: Provided are a dental apparatus and a dental system using the dental apparatus, the dental apparatus including a signal detector configured to detect an electrical signal varying according to a distance between a file inserted into a tooth and an apical foramen, and a controller configured to execute a first mode for calculating the distance between the apical foramen and the file by using the electrical signal and for displaying the distance on a screen, and configured to execute a second mode for displaying root canal working length information and identification information received through a communication part or input part, on the screen, for generating identified root canal working length information by using the root canal working length information and the identification information, and for transmitting the identified root canal working length information to the external device through the communication part according to the input signal.

Abstract: The present invention relates to a laser-diode, liquid-crystal projector. In the present invention, a light source comprises a G laser diode emitting green light, a B laser diode emitting blue light, and an R laser diode emitting red light and provided such that a power application pin is positioned vertical to the power application pin of the G laser diode or B laser diode, and an optical structure appropriate therefor is proposed. According to the present invention, the directions of polarized lights of the R, G, and G light sources incident from an optical modulator formed from a liquid crystal can be consistent with each other by efficiently changing the arrangement of the pins of the laser diodes without using a separate complex optical element.

Abstract: The present invention relates to a laser-diode, liquid-crystal projector. In the present invention, a light source comprises a G laser diode emitting green light, a B laser diode emitting blue light, and an R laser diode emitting red light and provided such that a power application pin is positioned vertical to the power application pin of the G laser diode or B laser diode, and an optical structure appropriate therefor is proposed. According to the present invention, the directions of polarized lights of the R, G, and G light sources incident from an optical modulator formed from a liquid crystal can be consistent with each other by efficiently changing the arrangement of the pins of the laser diodes without using a separate complex optical element.