Figure 11. Edgerton lamp 

 with reflector removed. Note 

 that the projector bulb is 

 mounted in an inverted posi- 

 tion inside the pyrex envelope 

 so that when the assembly is 

 mounted pointed downward, the 

 bulb is upright. 



Figure 12. Edgerton lamp 

 with reflector in place. 



16 



