LED Light Panel for PBR Material Scanner

Were developing a material scanner here that we use in-house, it's a box with 6 light panels illuminating a subject. The top panel has a circular cutout for a camera lens. Stumbled upon the ABSOLUTE SERIES™ and I'm wondering if one could custom-order that in a matrix in the dimensions of 45x45 cm? Or is there some other product that would that you would recommend? The key points for the panel are -High CRi -even lightspeed, -45x45 cm illuminated area. -power consumption of each panel shouldn't exceed 50W

Unfortunately, we are unable to accommodate custom requests at this time, however, I do believe that some quick and light assembly will be able to achieve the 45 x 45 cm matrix configuration you are looking for.

The 50-watt power consumption is a crucial starting point for the recommended configuration, as this can tell us the maximum number of rows we can install.

Each 45 cm long section is approximately 6.5 watts in power consumption. Therefore, to stay below the 50-watt limit, you will need to stay under a total of 7 rows. These rows can be spaced approximately 5.5 cm apart to achieve even illumination.

​Each of the individual sections can then be connected end-to-end using our PN 3071 solderless connectors, which I have linked to below:

Below is a sample configuration diagram for our FilmGrade 95 CRI product which utilizes a similar "matrix" concept by joining shorter sections together. This may be a helpful guide in providing you with a concept-level overview of how the installation could be configured.

https://www.waveformlighting.com/layoutmaps/3002_3E?px=-2199&py=-2552&pw=1398&ph=2104&s=0.1

on without worrying about the spectrum and CRI just yet.

I bounced this with our engineer here and think we could possibly go up to 100W if we change out some components here, but he was worried about the distance from the bedsheet to the diffuser to get a perfect even illuminated area. The panels we're using right now are about 15 mm thick and I don't think we could go over 30mm in our construction. Do you have some recommendations on what distance from the LED to the diffuser would be needed for an even illumination? And is there something that can be done to reduce it? lenses for the LEDs or anything?

Our current led manufacturer for our side-lit panels stated that an 8 mm LGP would be needed for an even light distribution as well but would you say it could be possible for a thinner one and keep quality? If we would go for a side-lit setup in the next version that is. 

Based on the 120 degree beam angle of the LEDs, one quick rule of thumb would be to place the diffuser no closer than the distance between the LED strip rows. So, for example, if the LED strip rows are spaced 5.5 cm apart (as per our previous layout), the diffuser should be placed no closer than 5.5 cm away.

​This ensures that the light falling onto the diffuser surface is relatively distributed; even the best diffusers will be unable to create a smooth light surface if the LEDs are too far apart relative to the distance away.

​As you mention, the performance of the diffuser panel will also come into play and while I understand the limitations on thickness, I do believe that other factors such as the "diffusion angle" and transparency will also come into play here so these may be good questions for your diffuser supplier to see what options are available without increasing thickness.

In my experience, empirical testing is also a very effective tool in this type of situation for determining light distribution. I might even suggest that if you have some low-cost LED strip lights (non high-CRI) available for purchase locally, that might be a good starting point just to see how the light is distributed in your installation without worrying about the spectrum and CRI just yet.

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