Abstract:
The present invention relates to a rearview mirror for resolving blind spots, wherein the mirror includes a central reflective surface, a left reflective surface, and a right reflective surface. A boundary line is disposed between each reflective surface to prevent a driver from misjudging the positions of and distances to objects, to thereby prevent car accidents.
Abstract:
The present invention relates to a pure-tone audiometer system and method for enabling simultaneous testing of multiple examinees. The system comprises: a plurality of terminals to be used by examinees to carry out at least one pure-tone audiometry test including an air conduction test, a bone conduction test and a masking test, by themselves; and an examiner server connected to each of the examinee terminals, for monitoring information on the state of the examination for each examinee and the examination results, on the basis of the pure tone audiometry test data obtained from each of the examinee terminals. Accordingly, one single examiner can conduct and manage the hearing test on a number of examinees at the same time, which in turn gives benefits to the examinees in terms of a reduced examination fee as well as a shorter waiting period.
Abstract:
The present invention relates to a pure-tone audiometer system and method for enabling simultaneous testing of multiple examinees. The system comprises: a plurality of terminals to be used by examinees to carry out at least one pure-tone audiometry test including an air conduction test, a bone conduction test and a masking test, by themselves; and an examiner server connected to each of the examinee terminals, for monitoring information on the state of the examination for each examinee and the examination results, on the basis of the pure tone audiometry test data obtained from each of the examinee terminals. Accordingly, one single examiner can conduct and manage the hearing test on a number of examinees at the same time, which in turn gives benefits to the examinees in terms of a reduced examination fee as well as a shorter waiting period.
Abstract:
Provided is an apparatus for grinding the curved surface of a mirror for a vehicle, and a method for grinding the curved surface using same. In the mirror-processing apparatus and the method for grinding a curved surface using same, an auxiliary mirror, in which a concavely curved surface is processed and formed on the back surface of the mirror, is installed on a vehicle to eliminate a blind spot, thereby contributing to improved user convenience. Implementing grinding, lapping, and polishing processes in the forming of the auxiliary mirror may improve processing efficiency and productivity, as well as the quality of a product.
Abstract:
Disclosed are a generating apparatus and a motor. The disclosed generating apparatus comprises: a stator made of a nonferrous metal and around which coil is wound; and a rotor made of a nonferrous metal and installed so as to be rotatable relative to the stator, and on the surface of which a plurality of magnets are disposed to generate electrical energy through mutual operation with the coil. The disclosed generating apparatus and the motor are advantageous in that the rotor as well as the stator is made of a nonferrous metal such as stainless steel, aluminum, or the like, thereby enabling the rotor to rotate more smoothly, thus achieving an improved operating efficiency of the generating apparatus and the motor.
Abstract:
A power generating apparatus and a motor are disclosed. The disclosed power generating apparatus comprises a stator being comprised of nonferrous metal; and a rotator. The disclosed motor comprises a field iron core; a motor case being comprised of nonferrous metal; and a stator magnet having the same width as the width of a magnet facing portion of the field iron core. By he disclosed power generating apparatus and the disclosed motor, the efficiency is enhanced.