ellipsoidal reflectors group-buy?

18wheeler · 24th January 2005, 05:46 PM

I have contacted a optics manufacurer that makes ellipsoidal reflectors. their price is about a quarter of the cheapest ones available in USA. it is about $18-20 after shipping, depanding the size of the reflector and how much shipping will cost. I am going to get a reflector to do some tests. If anyone is interested please contact me at liu DOT 316 AT osu DOT edu.

by the way, which one of following is better to get? I am going to try it on a CDM-T lamp, which is 19mm in diameter. I guess I can enlarge the center hole of T090 reflector to make it 1~2 mm wider.

HB1220-T080
D = 80mm d = 22mm H = 35mm F1 = 15mm F2 = 120mm

HB1220-T090
D = 90mm d = 18mm H = 53mm F1 = 14mm F2 = 165mm

for benefits of ellipsoidal reflector and CDM-T lamps, please see

Ace's posts.

chooch · 25th January 2005, 08:19 PM

I'm interested... email sent.

Gordon

ace3000_1 · 26th January 2005, 07:35 AM

Heya 18, ill go for a HB1220-T080

Trev

TaskMaster · 26th January 2005, 08:19 PM

I emailed but got no reply.

18wheeler · 26th January 2005, 11:43 PM

I asked the manufacturer if they are willing to ship to US. I haven't got reply yet. if not, I have to ask my friend to buy and ship them to me.

Me2! · 27th January 2005, 05:45 PM

I'll take a HB1220-T080 also. I would actually prefer the larger D but the bulb hole and longer f of this unit is better.

Any chance they could make a deep elliptical? I am testing a 2nd unit to collect radial light out the front (missing the reflector) but a long elliptical would be much better. I might have to polish up my telescope mirror making skills - pun intended.

TaskMaster · 14th February 2005, 03:09 AM

These are stock units that he is ordering from the manufacturer. I'm sure it would be quite expensive for a custom model.

charlie10 · 28th February 2005, 05:41 AM

Is this group-buy still in the works? If so, I'm also interested.

TaskMaster · 28th February 2005, 09:36 AM

It should be - shoot a message to 18wheeler.

24th January 2005, 05:46 PM	#1
18wheeler diyAudio Member Join Date: Jan 2003 Location: Northwest, US	ellipsoidal reflectors group-buy? I have contacted a optics manufacurer that makes ellipsoidal reflectors. their price is about a quarter of the cheapest ones available in USA. it is about $18-20 after shipping, depanding the size of the reflector and how much shipping will cost. I am going to get a reflector to do some tests. If anyone is interested please contact me at liu DOT 316 AT osu DOT edu. by the way, which one of following is better to get? I am going to try it on a CDM-T lamp, which is 19mm in diameter. I guess I can enlarge the center hole of T090 reflector to make it 1~2 mm wider. HB1220-T080 D = 80mm d = 22mm H = 35mm F1 = 15mm F2 = 120mm HB1220-T090 D = 90mm d = 18mm H = 53mm F1 = 14mm F2 = 165mm for benefits of ellipsoidal reflector and CDM-T lamps, please see Ace's posts.

26th January 2005, 07:35 AM	#3
ace3000_1 diyAudio Member Join Date: Mar 2003 Location: spain	Heya 18, ill go for a HB1220-T080 Trev __________________ "Every technique can be used in a great many ways, but mastering it, thats what realy counts."

27th January 2005, 05:45 PM	#6
Me2! diyAudio Member Join Date: Dec 2004 Location: BC	Me2! I'll take a HB1220-T080 also. I would actually prefer the larger D but the bulb hole and longer f of this unit is better. Any chance they could make a deep elliptical? I am testing a 2nd unit to collect radial light out the front (missing the reflector) but a long elliptical would be much better. I might have to polish up my telescope mirror making skills - pun intended.

28th February 2005, 05:41 AM	#8
charlie10 diyAudio Member Join Date: Nov 2004 Location: California.	elliptical Is this group-buy still in the works? If so, I'm also interested.

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25th January 2005, 08:19 PM	#2
chooch diyAudio Member Join Date: Oct 2004	I'm interested... email sent. Gordon

26th January 2005, 08:19 PM	#4
TaskMaster diyAudio Member Join Date: Jan 2005 Location: USA	I emailed but got no reply.

26th January 2005, 11:43 PM	#5
18wheeler diyAudio Member Join Date: Jan 2003 Location: Northwest, US	I asked the manufacturer if they are willing to ship to US. I haven't got reply yet. if not, I have to ask my friend to buy and ship them to me.

14th February 2005, 03:09 AM	#7
TaskMaster diyAudio Member Join Date: Jan 2005 Location: USA	These are stock units that he is ordering from the manufacturer. I'm sure it would be quite expensive for a custom model.

28th February 2005, 09:36 AM	#9
TaskMaster diyAudio Member Join Date: Jan 2005 Location: USA	It should be - shoot a message to 18wheeler.

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