Dynamic object behavior for object-oriented environments. The optical apparatus also includes a stage, on which the light concentrated by the light focusing optical system is irradiated and on which an object may be placed, and includes a projecting optical system for projecting the light transmitted through the object. A plurality of connectors may be used to secure the wire grille panels together. When performing a touch sensing and receiving the touch driving signal, each second conductor line unit makes use of a corresponding connection line to be extended to one edge of the panel structure. A rubber composition for an inner liner comprising 10 to 50 parts by weight of mica having an aspect ratio of at least 50 and an average particle diameter of 40 to 100 \u03bcm, based on 100 parts by weight of a rubber component comprising 30 to 60% by weight of butyl base rubber, 20 to 50% by weight of natural rubber or isoprene rubber and 10 to 40% by weight of butadiene rubber. The fuel ignition system is adapted to allow a photocatalyst to ignite a mixture by using a light energy irradiated from a light generator.