Abstract: A location-based facility management system includes a database server configured to store object information on a management target facility acquired in advance as a database, an image acquisition module configured to acquire an object image and GPS information, an auto calibration module provided with an auto calibration algorithm which decides an internal parameter for the image, a DB input/output module configured to store the object information in the database server and to receive the object information from the database server, a position correction module provided with a position correction algorithm which corrects the GPS information of the object image using the internal parameter decided by the auto calibration module and the object information received from the DB input/output module, and a mobile device provided with a facility management application which detects a characterizing point of an object image acquired by a camera.

Abstract: An optical system is provided for use in a vehicle head-up display including a display panel for displaying drive information image, a backlight unit for irradiating light toward the display panel and an optical system for adjusting the size and focal distance of the drive information image projected from the display panel toward a windshield of a motor vehicle. The optical system includes a pre-lens reflection mirror array for reflecting the drive information image projected from the display panel to travel along a first roundabout path, a lens array for adjusting the size and focal distance of the drive information image reflected by the pre-lens reflection mirror array, and a post-lens reflection mirror array for reflecting the drive information image coming from the display panel toward the windshield to travel along a second roundabout path.

Abstract: An optical system is provided for use in a vehicle head-up display including a display panel for displaying drive information image, a backlight unit for irradiating light toward the display panel and an optical system for adjusting the size and focal distance of the drive information image projected from the display panel toward a windshield of a motor vehicle. The optical system includes a pre-lens reflection mirror array for reflecting the drive information image projected from the display panel to travel along a first roundabout path, a lens array for adjusting the size and focal distance of the drive information image reflected by the pre-lens reflection mirror array, and a post-lens reflection mirror array for reflecting the drive information image coming from the display panel toward the windshield to travel along a second roundabout path.

Abstract: An information-displaying system is provided for use with a vehicle head-up display including a liquid crystal panel for displaying drive information image, a backlight unit for irradiating light toward the liquid crystal panel, an optical system for enlarging or reducing the drive information image displayed on the liquid crystal panel, and a reflection mirror for reflecting the drive information image projected by the optical system toward a windshield of a motor vehicle. The information-displaying system includes a navigation information providing unit for providing navigation information on a current vehicle position, a road map and an optimum route to destination, a traffic information providing unit for providing traffic information on a real time basis, and a control unit for controlling the liquid crystal panel to display the navigation information and the traffic information provided by the navigation information providing unit and the traffic information providing unit.