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Novel supermarket lighting
I saw these in a new Sainsbury's store.
http://www.flickr.com/photos/g3zvt/8...ream/lightbox/ Are they LED arrays? I'm not sure. Whatever they are they do the job well. -- Graham. %Profound_observation% |
Novel supermarket lighting
On 08/01/2013 21:36, Graham. wrote:
I saw these in a new Sainsbury's store. http://www.flickr.com/photos/g3zvt/8...ream/lightbox/ Are they LED arrays? I'm not sure. Whatever they are they do the job well. Wow - saved a whole penny! How new is the store? Certainly ours (which is not exactly old) has conventional fluorescents. -- Rod |
Novel supermarket lighting
On Tue, 08 Jan 2013 21:43:27 +0000, polygonum
wrote: On 08/01/2013 21:36, Graham. wrote: I saw these in a new Sainsbury's store. http://www.flickr.com/photos/g3zvt/8...ream/lightbox/ Are they LED arrays? I'm not sure. Whatever they are they do the job well. Wow - saved a whole penny! How new is the store? Certainly ours (which is not exactly old) has conventional fluorescents. Leek, Staffordshire. Not open yet. Next week I think. -- Graham. %Profound_observation% |
Novel supermarket lighting
On Tue, 08 Jan 2013 21:36:04 +0000, Graham. wrote:
I saw these in a new Sainsbury's store. http://www.flickr.com/photos/g3zvt/8...ream/lightbox/ Are they LED arrays? I'm not sure. Whatever they are they do the job well. Presumably the bit we can see is narrow and just hangs down? Like edge illuminated emergency exit signs. -- Cheers Dave. |
Novel supermarket lighting
On Tue, 08 Jan 2013 23:05:04 +0000 (GMT), "Dave Liquorice"
wrote: On Tue, 08 Jan 2013 21:36:04 +0000, Graham. wrote: I saw these in a new Sainsbury's store. http://www.flickr.com/photos/g3zvt/8...ream/lightbox/ Are they LED arrays? I'm not sure. Whatever they are they do the job well. Presumably the bit we can see is narrow and just hangs down? Like edge illuminated emergency exit signs. Yes, exactly like that and I doubt if they will resist the temptation to use some them as signage. Here is another angle http://www.flickr.com/photos/g3zvt/8...ream/lightbox/ What the camera can't show is just how much brighter they look from directly underneath. The distent ones are very easy on the eye. -- Graham. %Profound_observation% |
Novel supermarket lighting
On Tuesday, January 8, 2013 9:36:04 PM UTC, Graham. wrote:
I saw these in a new Sainsbury's store. http://www.flickr.com/photos/g3zvt/8...ream/lightbox/ Are they LED arrays? I'm not sure. Whatever they are they do the job It sure looks like linear fluorescent, which make far more business sense than LED for general lighting. NT |
Novel supermarket lighting
On 08/01/2013 21:36, Graham. wrote:
I saw these in a new Sainsbury's store. http://www.flickr.com/photos/g3zvt/8...ream/lightbox/ Are they LED arrays? I'm not sure. Whatever they are they do the job well. Wondering if, regardless of the actual light source, they are really an improved diffuser? In our JS the lights initially appear to be good and (other than the hanging down bit) similarly fitted to yours and at a similar height, etc. The light down the aisles quite well, but the ceiling has a much less even effect than yours. Also, it would be a damn site easier to wipe down a bit of plastic than to try to clean a classic diffuser. Maybe the same fitting can take fluorescent or strip LED? That might need an improved diffuser. -- Rod |
Novel supermarket lighting
On Jan 8, 9:36*pm, Graham. wrote:
I saw these in a new Sainsbury's store. http://www.flickr.com/photos/g3zvt/8...ream/lightbox/ Are they LED arrays? I'm not sure. Whatever they are they do the job well. -- Graham. %Profound_observation% You can buy replacement LED tubes that fit in the conventional fluorescent fitting. You have to dis all the control gear inside. |
Novel supermarket lighting
On Tue, 08 Jan 2013 21:36:04 +0000, Graham.
wrote: I saw these in a new Sainsbury's store. http://www.flickr.com/photos/g3zvt/8...ream/lightbox/ Are they LED arrays? I'm not sure. Whatever they are they do the job well. Why not ask 'em? -- Frank Erskine |
Novel supermarket lighting
On Wednesday, January 9, 2013 8:47:57 AM UTC, Dave Liquorice wrote:
On Tue, 8 Jan 2013 16:12:12 -0800 (PST), wrote: http://www.flickr.com/photos/g3zvt/8...ream/lightbox/ It sure looks like linear fluorescent, which make far more business sense than LED for general lighting. Doesn't look like much space in the box at the top to shove a tube. I don't think a T8 would fit at least not without the box being very snug and you need space around a tube to bounce the light that is being radiated in the "wrong" direction into the edge of dangly diffuser. thinner tubes would fit with space. With such a distant view its hard to tell much detail, but there are certainly ways to redirect the light from T8s or T12s without space by the side, such as by reflecting light above down into the edge of the sheet glass. NT |
Novel supermarket lighting
In article
..com, harry writes You can buy replacement LED tubes that fit in the conventional fluorescent fitting. You have to dis all the control gear inside. I've been very impressed with some of the LED replacements for fluoro tubes that I've seen. In fittings with a shiny reflector, they've been fitted pointing down, and I wondered if they would be better fitted pointing upwards to reduce direct glare (they're *bright*). -- (\_/) (='.'=) (")_(") |
Novel supermarket lighting
Mike Tomlinson wrote in
: In article .com, harry writes You can buy replacement LED tubes that fit in the conventional fluorescent fitting. You have to dis all the control gear inside. I've been very impressed with some of the LED replacements for fluoro tubes that I've seen. In fittings with a shiny reflector, they've been fitted pointing down, and I wondered if they would be better fitted pointing upwards to reduce direct glare (they're *bright*). I think that the optics of LEDs lead us to think they are brighter that they really are. We are trying to compare a bright small source (LEDS) with a larger and more diffused source (Others). The real test I guess is to compare the light reflected off the illuminated surfaces over the illuminated areas. |
Novel supermarket lighting
On 09/01/2013 08:47, Dave Liquorice wrote:
On Tue, 8 Jan 2013 16:12:12 -0800 (PST), wrote: http://www.flickr.com/photos/g3zvt/8...ream/lightbox/ It sure looks like linear fluorescent, which make far more business sense than LED for general lighting. Doesn't look like much space in the box at the top to shove a tube. I don't think a T8 would fit at least not without the box being very snug and you need space around a tube to bounce the light that is being radiated in the "wrong" direction into the edge of dangly diffuser. I thought they might have T5 tubes in them. If you wrapped the diffuser around the tube and put a reflector on top you would get most of the light out. |
Novel supermarket lighting
On Tue, 08 Jan 2013 21:36:04 +0000, Graham.
wrote: I saw these in a new Sainsbury's store. http://www.flickr.com/photos/g3zvt/8...ream/lightbox/ Are they LED arrays? Could be the same principle as edge-lit LED backlights on monitors. Stripping a couple revealed a thick perspex panel that was dimpled like buggery at a dimple/dot pitch of 1mm. In these ones the edge lights were CCFls but the same idea would work with LEDs. I still have the dimpled sheets, and that gives me an idea for a (now, not-so) novel light. |
Novel supermarket lighting
On Tue, 08 Jan 2013 21:47:41 +0000, Graham.
wrote: Leek, Staffordshire. Not open yet. Next week I think. I found this using google: http://www.leek-news.co.uk/News/40m-...s-08012013.htm Near the bottom it says: "The new store also features many green initiatives including LED lighting throughout – the first Sainsbury’s in the country to be built with such a feature." If it doesn't open until next week, how did you get in to take the photo ;) |
Novel supermarket lighting
On Tue, 08 Jan 2013 23:49:13 +0000, just as I was about to take a
herb, Graham. disturbed my reverie and wrote: What the camera can't show is just how much brighter they look from directly underneath. The distent ones are very easy on the eye. Ah that's a better view. Looks like they are using the glass/Perspex as a wave-guide using internal reflection to get most of the light down to the floor with enough leakage for ambient light. -- Cheers DrT ______________________________ We may not be able to prevent the stormy times in our lives; but we can always choose whether or not to dance in the puddles (Jewish proverb). |
Novel supermarket lighting
On Thursday, January 10, 2013 9:40:35 PM UTC, Norman wrote:
On Tue, 08 Jan 2013 21:47:41 +0000, Graham. wrote: Leek, Staffordshire. Not open yet. Next week I think. I found this using google: http://www.leek-news.co.uk/News/40m-...s-08012013.htm Near the bottom it says: "The new store also features many green initiatives including LED lighting throughout – the first Sainsbury’s in the country to be built with such a feature." If it doesn't open until next week, how did you get in to take the photo ;) Why am I imagining T5 tubes with a 40mW LED at each end? NT |
Novel supermarket lighting
On Thu, 10 Jan 2013 21:40:35 +0000, Norman wrote:
Near the bottom it says: "The new store also features many green initiatives including LED lighting throughout – the first Sainsbury’s in the country to be built with such a feature." Green lights? That's going to look horrible. |
Novel supermarket lighting
On Thu, 10 Jan 2013 21:40:35 +0000, Norman wrote:
Near the bottom it says: "The new store also features many green initiatives including LED lighting throughout – the first Sainsbury’s in the country to be built with such a feature." Green lights? That's going to look horrible. |
Novel supermarket lighting
On Thu, 10 Jan 2013 21:40:35 +0000, Norman wrote:
On Tue, 08 Jan 2013 21:47:41 +0000, Graham. wrote: Leek, Staffordshire. Not open yet. Next week I think. I found this using google: http://www.leek-news.co.uk/News/40m-...s-08012013.htm Near the bottom it says: "The new store also features many green initiatives including LED lighting throughout – the first Sainsbury’s in the country to be built with such a feature." If it doesn't open until next week, how did you get in to take the photo ;) Doing some IT work. If it is LED it's very good, I had no issues with the lighting level, uniformity, or colour temperature. Andrew Gabriel has just responded to a post of mine in another group, I'll ask him to come here and give his expert comments. -- Graham. %Profound_observation% |
Novel supermarket lighting
In article ,
Graham. writes: I saw these in a new Sainsbury's store. http://www.flickr.com/photos/g3zvt/8...ream/lightbox/ Are they LED arrays? I'm not sure. Whatever they are they do the job well. I suspect they are GE Lumination LED Luminaires, possibly the EL series. They're advertised on the back cover of February Lux Magazine (lighting trade press). The high res picture on Lux Magazine looks exactly like your photo, but unfortunately the rather poor pictures on GE's website don't look exactly the same. -- Andrew Gabriel [email address is not usable -- followup in the newsgroup] |
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