Assistance with Changing Substrate in Optics

danellis hernandez

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Apr 22, 2025, 10:20:31 AMApr 22

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Good morning,

Could someone please explain how to properly change a substrate in optics?

I’m currently working on switching from a 6 mm clear substrate with R36/23 coating to an 8 mm Optiwhite substrate with the same R36/23 coating. I’d appreciate any guidance on how to handle this change correctly, particularly in terms of modeling or updating optical properties.

Thank you in advance for your help.

Best regards,
Danellis H

Zugur Rakhmanov

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Apr 22, 2025, 6:09:53 PMApr 22

to danellis hernandez, THERM

Hi Danellis,

If you work in the 8th version of Window, see the ID18568. Maybe that product will work for you.

Kind regards,

Zugur

Вт, 22 апр. 2025 г. в 17:20, danellis hernandez <infaca...@gmail.com>:

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Robin Mitchell

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Apr 22, 2025, 6:53:38 PMApr 22

to danellis hernandez, THERM

Danellis

I'm not sure exactly what you are trying to do, but I suspect that you are not able to change the substrate of the record in Optics because of how the manufacturer submitted it, ie, without substrate information.

I have attached a PDF which describes what some workarounds might be for this situation.

Robin

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Robin Mitchell

Building Technology and Urban Systems Division
Energy Technologies Area
Lawrence Berkeley National Laboratory

Optics_UsingProductsWithoutSubstrateInfo (1).pdf

danellis hernandez

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Apr 23, 2025, 9:16:21 AMApr 23

to Zugur Rakhmanov, THERM

Hi Zugur,
Thanks for your reply. Unfortunately, I can’t use that one because it’s R36/23 over clear, and I specifically need R36/23 over optiwhite.

Thanks again, 😊

Danellis Hernandez

infacadecorp@gmail.com

Tel.: (786) 712-4110

https://infacadecorp.com/

danellis hernandez

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Apr 23, 2025, 9:19:25 AMApr 23

to Robin Mitchell, THERM

Hi Robin,

Thank you so much for your thoughtful response and for taking the time to attach the PDF. I really appreciate the explanation, it helps clarify why I’ve been having trouble making the change.

I’ll review your workarounds and see how I can best move forward.

Thanks again for your support!

Warm regards,

Danellis Hernandez

infacadecorp@gmail.com

Tel.: (786) 712-4110

https://infacadecorp.com/

Robin Mitchell

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Apr 23, 2025, 2:30:33 PMApr 23

to danellis hernandez, THERM

Danellis

If none of the workarounds work (!) for you, you might get in touch with the manufacturer, and see if they could provide a spectral data file that could be imported into Optics, and then into WINDOW.

If you end up needing to do that, get in touch with me, and I can see if I can put you in touch with the person who usually submits data to the IGDB from that manufacturer.

Robin

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