Optical Key Switch

By Xah Lee. Date: . Last updated: .

Optical key switch became popular around 2016, due to the Bloody B840 Light Strike Keyboard using the β€œBloody LK Optic 2 switch”.

Bloody_B840_keyboard_19317-s250
Bloody B840 LK

Optical switch is great because it does not need metal contact. Meaning, no wear, last longer, and easier to be water resistant.

infra red optical switch 27658
infra red optical switch
Tesoro optical switch

Optical Switch Manufactures

keychron optical low profile switch 2022-05-25
keychron optical low profile switch 2022-05-25

Optical Key Switch keyboards

There are a lot. Here's a few example.

Bloody_B840_keyboard_19317-s250
Bloody B840 LK

Key Switch Topic

Xah Keyboard Guide