470
edits
Talk:Xenon short-arc lamp: Difference between revisions
no edit summary
No edit summary |
JesseCrooks (talk | contribs) No edit summary |
||
| Line 7: | Line 7: | ||
===Need to Check=== | ===Need to Check=== | ||
" A lamp alignment should be performed when a new lamp is installed and periodically thereafter because the position may drift over time." - I think it actually only needs to be done a second time after a certain number of hours but after that the position does not drift. Must verify. --[[User:Rlyon|Rlyon]] ([[User talk:Rlyon|talk]]) 10:59, 17 February 2019 (PST) | " A lamp alignment should be performed when a new lamp is installed and periodically thereafter because the position may drift over time." - I think it actually only needs to be done a second time after a certain number of hours but after that the position does not drift. Must verify. --[[User:Rlyon|Rlyon]] ([[User talk:Rlyon|talk]]) 10:59, 17 February 2019 (PST) | ||
I believe the amount of drift will depend on the installation. An auditorium with a steeper throw will drift more than one where the lamp is on an even plane. Based on our technician's recommendations we refocus our digital lamps every month. In a perfect world, lamps for film projectors should probably be refocused on a similar schedule. | |||
===Luminance=== | |||
Added a discussion of fixed-height vs. variable-height masking, since it greatly affects the light requirements. | |||