Electronics > Projects, Designs, and Technical Stuff
Shining leds through the PCB
Fred27:
--- Quote from: Nominal Animal on May 10, 2019, 12:27:07 pm ---perhaps silkscreenless PCB would work well as a diffuser in some use cases?
--- End quote ---
It does. Video on this page:
https://www.element14.com/community/community/project14/nfc-rfid/blog/2019/04/28/locknfc-does-the-pcb-work
Ice-Tea:
Reverse mount and diffused:
https://www.kingbrightusa.com/category.asp?catalog_name=LED&category_name=KCReverse+Mount+SMD+LED&Page=1
Jeroen3:
Just get upside down LEDS.
1206 upside down chipled: APTR3216ZGC
Eagle library: https://github.com/sparkfun/SparkFun-Eagle-Libraries/blob/master/SparkFun-LED.lbr
Part: LED-1206-BOTTOM
OM222O:
--- Quote from: Ice-Tea on May 10, 2019, 12:47:54 pm ---Reverse mount and diffused:
https://www.kingbrightusa.com/category.asp?catalog_name=LED&category_name=KCReverse+Mount+SMD+LED&Page=1
--- End quote ---
--- Quote from: Jeroen3 on May 10, 2019, 01:38:57 pm ---Just get upside down LEDS.
1206 upside down chipled: APTR3216ZGC
Eagle library: https://github.com/sparkfun/SparkFun-Eagle-Libraries/blob/master/SparkFun-LED.lbr
Part: LED-1206-BOTTOM
--- End quote ---
both of these require holes / bodge wires since the plastic package extends beyond the pads. that's not ideal!
tooki:
search for "reverse gullwing SMD LED" and you find all kinds of results from Osram, Vishay, and LG.
https://www.mouser.co.uk/Optoelectronics/LED-Lighting/LED-Emitters/Standard-LEDs-SMD/_/N-b1bb1?Keyword=reverse+gullwing&FS=True
I think that £0.17 in quantities of 100 isn't too bad at all!
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