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GE 1000w CID PAR64.

GE 1000w CID PAR64.

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1 x 1000w CID PAR64 lamp. They slightly less efficient daylight brother of the CSI PAR64.
Made in UK dated August 2007 so probably one of the last made there?

One thing that I have just noticed, can you see the ring about two thirds of the way down on the reflector? The half of the reflector closest to the arc tube is a dichroic coating (you can see the light shining through on the base and table) while the outer section is pure solid aluminized reflector.

I'm not sure if this is specific to the CID version or is on all of the newer lamps made by GE as the only other CSI PAR64 lamp to compare it with is an early Thorn unit with the niobium heat sheields on the lead wires instead of the newer ceramic ones seem here.
Maybe something James could shead some light on, if you excuse the pun :)

387A5613.JPG 387A5607.JPG IMG_6518.JPG DPP00003472.JPG

Light Information

Light Information

Manufacturer:GE
Model Reference:CID 1000/PAR64
Lamp
Lamp Type:CSI PAR64
Base:G38
Shape/Finish:PAR64
Service Life:1000h
Electrical
Wattage:1000w
Voltage:70-85v
Current:15a
Optical
Lumen Output:850,000ccd
Color Temperature:5500k
Color Rendering Index:85%
Physical/Production
Dimensions:204x175mm
Factory Location:United Kingdom
Fabrication Date:August 2007

File information

File information

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Filename:IMG_6518.JPG
Album name:FrontSideBus / HID: Metal halide
Keywords:Lamps
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Date added:Oct 05, 2018
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Date Time:2018:10:01 18:36:06
DateTime Original:2018:10:01 18:36:06
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Exposure Time:13/10 sec
FNumber:f 11
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Focal length:60 mm
ISO:100
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Comments
FrontSideBus
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Oct 07, 2018 at 08:20 AM Author: FrontSideBus
If James sees this, it would be interesting to find out when they changed from the full reflector to the half-dichroic coating? Was it new for the GE lamps or did Thorn do it on their later ones?

UK out of the EU!
http://www.lighting-gallery.net/gallery/index.php?cat=11271

Bulb Freak
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Nov 24, 2020 at 03:28 PM Author: Bulb Freak
a bit* late but better late then never as they say!

but in this older post, James explains why the later lamps (from 1999 onwards) have a small section of the reflector made dichroic

https://www.lighting-gallery.net/gallery/displayimage.php?pos=-49263

My other hobby is buses, especially the Routemaster

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