CHART PROJECTOR

摘要

PURPOSE: A chart projector is provided to improve convenience of use by reducing the number of open/close operations of the chart projector when exchanging a lamp. CONSTITUTION: A chart projector includes a first housing(13) and a fourth housing(25) inserted into the first housing(13) in order to move along upper and lower directions of the first housing(13). A lamp(11) and a spare lamp(23) are fixed to upper and lower ends of the fourth housing(25). A rear reflective mirror(12) is arranged at a rear side with respect to a center of the lamp(11) in the first housing(13). A condenser lens(16) is arranged at a front portion of the lamp(11) to condense light generated from the lamp(11) such that the light has a uniform size. A chart(18) is installed in a second housing(17) connected to the first housing(13). A projection lens is installed in a third housing(18) connected to the second housing(17).