Abstract: A developed impact mark analysis apparatus includes: an image acquisition unit configured to obtain at least one first image by photographing impact marks that are developed, and to obtain a second image of impact marks at a crime scene that are developed from evidence at the crime scene; an outliner configured to outline the at least one first image to obtain at least one first outline image, and to outline the second image to obtain a second outline image; a database configured to store the first outline image corresponding to related tool characteristic information; a matching unit configured to search the database for the first outline image determined to be similar to the second outline image and match them with each other; a display unit; and a user input unit.

Abstract: A cold cathode fluorescent lamp is disclosed. The cold cathode fluorescent lamp includes a sealed glass tube provided with a fluorescent layer on an inner surface thereof, inner electrodes provided in opposite ends of the glass tube, and outer electrodes to apply an electric field to the inner electrodes. Each of the inner electrodes includes a first electrode formed in a cup shape and a second electrode provided inside the first electrode and formed in a coil shape.