Thanks for the tips. I just emailed Spectrolab and will report back with my findings. It looks like the application will consist of a laminated sheet of glass with a high-opacity plastic film between the two sheets. Throwing light between the shower occupant and the glass is definitely better than behind the occupant because this will cast a shadow and increase the chance of a defined silhouette visible from outside. I do plan on putting two recessed 6" can lights inside the shower. In addition, I will have one low-power dimmable LED up-light on the roof eave (exterior) directly behind the glass. This will create a unique lighting effect for the frosted glass shower wall when the shower isn't in use (imagine a glowing wall from inside the bathroom). Basically, I can have a cool exterior lighting effect combined with an even cooler interior lighting effect with this setup. I hope it all works out. Oruboris - Why would the window frame be spoiled by the water? From the interior, the tile will be laid up to and on top of the glass. From the exterior, this would be a traditional glass in standard aluminum window frame set up. Maybe I'm missing something?

Thanks, mdln. and, Elmer, I suspected that could very well be the case. Or, the charge may be steep. Some of these optical shops are guarded and pricy. Most of them have a good thing going and are protective of their turf, contacts, sources and so on. That’s business and there is likely a good amount of competition. However, I bet I could find someone to do it — for a price. What if someone from one coast moves across country and wants to keep their pricy frames while updating the lenses? I already sent mine for repair and I am not crazy with the lenses in such a short frame — too much dithering to find the sweet spot. If they can’t be mended, I’ll Just use a hot glue gun after abrading the mend area (facetious). I’m resourceful (often). I once repaired an SUV rear windshield washer nozzle for $0.45 instead of paying for a whole new dealer installed washer unit. I just needed a teensy weensy patent tube. I was confident I’d stumble across something some day. Voila! A basketball inflating needle worked fine after I cut it to size, uncrimped it, and epoxied it into place. clt3 — I’m happy to hear you love your frames. For me, it was (before they broke) the short lenses and (apparently) the “narrow channel” archetecture of the lenses. Okay for static driving, but they were awful for me if I needed to keep swapping fields (say when shopping). I guess I’m a tactile intolerant sort — I’m easily irritated by things around my face — hair, bangs, glasses, smudged eyeglasses, eyelashes in my eyes (or goop), hats that have a wide brim, long sleeves when working, tight shoes or waistbands, people too close; intrusive sounds like fans or keyboard clicks. I like near monastic silence, but with cool, clean fresh air, sky, vegetation and wildlife. To me, this is normal. I have no idea how anyone can think or create in a stifling environment in dress clothing (tight shoes or heels, a suit or dress with constricting waistline or jacket. If I cannot row a boat in it, I don’t want it on me. (And no, I don’t want to smell your charcoal grill or suffer your leaf blower racket.) ETA “you” plural“ general

I think HD bought comfortex.com and less expensive 3dayblinds.com is another source

Try selectblinds.com for better pricing. I think they call them "Sheer Shades" on their website. We had a professional come to our home and measure for Graber blinds, but the quote we got back was a lot higher than I was expecting. I was able to get the same kind of window treatments I wanted at Select Blinds for 1/3 the price and they were easy to install. If you create a shopping cart and save it, a salesperson will call you (which annoyed me at first) and offer you additional discounts (I was no longer annoyed after that 😁). I literally saved thousands.