function Camera() {

		Object3D.call( this );

		this.type = 'Camera';

		this.matrixWorldInverse = new Matrix4();
		this.projectionMatrix = new Matrix4();

	}
@author mrdoob / http://mrdoob.com/
@author mikael emtinger / http://gomo.se/
@author WestLangley / http://github.com/WestLangley