Miscellaneous - Carbon arc testing session #3 - brightness

File information
Filename:	100_0274.JPG
Album name:	Vince / Miscellaneous
Keywords:	Miscellaneous
Company and Date Manufactured:	Vince Electric Lighting Company Ltd
Model Number:	- (In development)
Wattage:	~700W estimated
Lamp Type:	Carbon arc
Filesize:	122 KiB
Date added:	Mar 13, 2010
Dimensions:	1000 x 750 pixels
Displayed:	194 times
Color Space:	sRGB
Contrast:	0
DateTime Original:	2010:01:16 13:00:50
Exposure Bias:	0 EV
Exposure Mode:	0
Exposure Program:	Program
Exposure Time:	1/6 sec
FNumber:	f/2.8
Flash:	No Flash
Focal length:	5.85 mm
ISO:	400
Light Source:	Unknown: 0
Make:	Eastman Kodak Company
Max Aperture:	f/2.8
Model:	KODAK Z812 IS ZOOM DIGITAL CAMERA
URL:	http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=1401
Favorites:	Add to Favorites

Comment 1 to 10 of 10

Page: 1

GullWhiz

[Mar 14, 2010 at 01:34 PM]

THAT is sure bright man!

joe_347V

[Mar 14, 2010 at 09:27 PM]

Yeah that's bright for sure Vince! and the cri looks pretty good too.

TiCoune66

[Mar 15, 2010 at 03:10 AM]

Yep, the CRI is pretty good. The light is pure white, the camera did showed the color accurately.

joe_347V

[Mar 15, 2010 at 05:03 AM]

I wonder how the streets used to look when carbon arc were used for streetlighting at night. I've uploaded a picture of a old carbon arc fixture in my gallery.

Medved

[Mar 15, 2010 at 09:37 PM]

The CRI is good, as it is in fact incandescent light source - the light originate from electrode hot-spot (~4000K) incandescence, the arc itself is nonluminous (in visible range, but it generate a lot of hard UV capable to convert oxygen to ozone)...

TiCoune66

[Mar 15, 2010 at 11:19 PM]

If I'm right, the positive rod generates 85% of the lumen output, the negative rod 10%, and the arc 5%.

I imagine how awesome it was to light streets with those flickering arc lights (because it flickers constantly!) My first video on YouTube gives a good overview.

rjluna2

[Mar 16, 2010 at 12:27 AM]

Are you running this arc lamp in AC? If so, you are seeing the flicker from the AC circuits. If you have it in DC, it won't flicker...

TiCoune66

[Mar 16, 2010 at 01:39 AM]

Yes it runs in AC, in the pic I used a hair dryter heater element. However a homemade ballast will perform better with lower losses.

Form109

[Mar 16, 2010 at 03:55 AM]

Vince how much Amperage do you Think this Setup Draws?....do the lights Dim when you Turn it on?

TiCoune66

[Mar 16, 2010 at 03:59 AM]

I don' t really know. I think the hair dryer was a 400/1000W, as I used the biggest element, I guess it draws 600W. I don't know how many watts goes to the arc, considering the heat losses.

Comment 1 to 10 of 10

Page: 1

Gallery of Lights

Carbon arc testing session #3 - brightness

The last carbon arc testing session was just after christmas, I thought it'd be interesting to show how bright my carbon arc is.

NOTE: My shoplight was not lit during the test, only the ceiling light nearby was lit.

Gallery of Lights

Carbon arc testing session #3 - brightness

The last carbon arc testing session was just after christmas, I thought it'd be interesting to show how bright my carbon arc is. NOTE: My shoplight was not lit during the test, only the ceiling light nearby was lit.

The last carbon arc testing session was just after christmas, I thought it'd be interesting to show how bright my carbon arc is.

NOTE: My shoplight was not lit during the test, only the ceiling light nearby was lit.