The simple answer to your question is it would basically be the same if there was no filter at all. Both the red and red-orange will pass through the filter. If you use a red-orange LED behind a red filter, the light will most likely still be red-orange, more orangish than if an incandescent bulb was used behind the filter.When using an LED behind a red filter would red-orange be more intense than red? Typically red-orange are rated higher in lumens vs red at a given drive current, but will red-orange still over come losses through a red filter to prevail?
When using an LED behind a red filter would red-orange be more intense than red? Typically red-orange are rated higher in lumens vs red at a given drive current, but will red-orange still over come losses through a red filter to prevail?
This is of general interest to the LED hobbyist, no mention of motor vehicles or attention-grabbing garments either, therefore I cannot see why your question should not be legitimate in this forum. I once had a red-lensed red + orange-red LED light (safe and legal on a road-going bicycle in America and elsewhere.) Unless the red filter is unusually tinted, the orange-red is likely to look brighter. But I don't think it's worth it. To me, personally, the orange-red LEDs lights look "cheaper" in traffic. On the other hand, don't rely on very-deep red because it might not work with some ophthalmological variants or knucklehead sunglasses.I am just asking what would appear brighter to the human eye through the red lens? Red-orange or red? Is there enough losses that red-orange is not a better choice behind a red filter per se.
When using an LED behind a red filter would red-orange be more intense than red? Typically red-orange are rated higher in lumens vs red at a given drive current, but will red-orange still over come losses through a red filter to prevail?
Did you not ask this in the Automotive forum and got shut down because creating your own brake/tail lights for a road going vehicle is illegal?