Can anyone suggest a reasonable reason for the cost of bulbs for data 
projectors. These seem to range in price from utterly laughable to 
entirely unbelievable.

While the bulb needs suitable characteristics including, presumably, 
proper spectral output, good lifetime, good source shape (suitable for 
expanding by optics to a linear illumination field) and more, there 
characteristics seem similar to what has been required from other 
optical projectors in the past. The bulbs generally have related 
optics but these should be reusable with a new bulb, especially so if 
the bulb dies early in its expected lifetime.

Is this just a concerted ripoff or am I missing something.

if the former, has anyone had any success in adapting other bulbs for 
DP use?




        Russell

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