6A60.30 Thin Lens Projection 6A60.30 Thin Lens Projection Project the filament of a lamp with a thin lens. Note: A distance of ~20 feet produces an easily viewable image. Location: Clamp: FG-1; Labjack: FG-3; 40 W Bulb: D1-2; Socket: D1-3; Lens: J1-4