Hi Guys,
I am a newby on this site. I have read a lotsa threads about the projector building but i am stucked a bit.
I would need your help. Currently i am building a special projektor with an lcd panel. It is required a special objective focal lenght. I use in my system:
15" display
400W metal halid light source
2 fresnels in 310 *310 mm size with 220 or 330 focus which is the best (sandwich mode)
. I would like to create for this special projector which gives me a 110*160 cm size picture. My calculated objective focus results were between 80-135 mm in variofocus triplet lens.
The distance from the wall is maximum 1 meter cannot be more even shorter and the picture diagonale is about 194 cm.
I would like to use a triplet lens. Dou you know a place where can i find such kind of focal range between 80-140 triplet lenses ?
What do you all think how correct are my calculations?
Many thanks,
regards
I am a newby on this site. I have read a lotsa threads about the projector building but i am stucked a bit.
I would need your help. Currently i am building a special projektor with an lcd panel. It is required a special objective focal lenght. I use in my system:
15" display
400W metal halid light source
2 fresnels in 310 *310 mm size with 220 or 330 focus which is the best (sandwich mode)
. I would like to create for this special projector which gives me a 110*160 cm size picture. My calculated objective focus results were between 80-135 mm in variofocus triplet lens.
The distance from the wall is maximum 1 meter cannot be more even shorter and the picture diagonale is about 194 cm.
I would like to use a triplet lens. Dou you know a place where can i find such kind of focal range between 80-140 triplet lenses ?
What do you all think how correct are my calculations?
Many thanks,
regards