This shot is made from two exposures. The first exposure uses the dark field lighting technique to light the glass bulb and the second exposure is a straight forward shot of the light bulb turned on using a high shutter speed to capture the detail of the element. I then combined these two exposures in Photoshop and did a little cleaning up here and there along with some contrast, saturation and masking.
Strobist details :- Nikon SB900 behind bulb and behind black foam core board at 1/4. No lighting used for the bulb element exposure.