dichroic lamps

DIY BOB · 2nd February 2005, 04:05 PM

hi does any body know what would be the best beam angle for me. i am using a 75w 12v dichroic lamp and a 5'' psone screen and have the option of 14 and 38 beam angle. does any body know which would be best.

thanks

Dazzzla · 2nd February 2005, 10:11 PM

With a 220mm rear fresnel, 35.8° is the ideal angle for a 5" LCD.

DJ

ace3000_1 · 2nd February 2005, 10:36 PM

Go the 38.

Trev

DIY BOB · 3rd February 2005, 06:56 AM

thanks for the replys i think i will try the 38 i will let you know how i get on.

thanks

2nd February 2005, 04:05 PM	#1
DIY BOB diyAudio Member Join Date: Jan 2005 Location: england	dichroic lamps hi does any body know what would be the best beam angle for me. i am using a 75w 12v dichroic lamp and a 5'' psone screen and have the option of 14 and 38 beam angle. does any body know which would be best. thanks

2nd February 2005, 10:36 PM	#3
ace3000_1 diyAudio Member Join Date: Mar 2003 Location: spain	Go the 38. Trev __________________ "Every technique can be used in a great many ways, but mastering it, thats what realy counts."

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2nd February 2005, 10:11 PM	#2
Dazzzla diyAudio Member Join Date: Mar 2004 Location: Australia	With a 220mm rear fresnel, 35.8° is the ideal angle for a 5" LCD. DJ

3rd February 2005, 06:56 AM	#4
DIY BOB diyAudio Member Join Date: Jan 2005 Location: england	thanks for the replys i think i will try the 38 i will let you know how i get on. thanks

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