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_GD5_ t1_j7fdzu1 wrote

Cyan and yellow solid state lasers exist. They are not common or cheap though.

Red and blue lasers technology was driven by the CD and DVD industries. A lot was invested to make them fast and cheap. Green was pushed later to make RGB displays and because humans are very sensitive to that color. Green pointers are perceived as very bright. There hasn’t been much invested in yellow or cyan.

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Ethereal42 t1_j7fxhvh wrote

Indeed, the diodes for cyan and yellow are very expensive and have only very recently been publicly available

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b7XPbZCdMrqR t1_j7g8qs0 wrote

Is this a recent breakthrough (similar to blue diodes 10 years ago), or is it something that has been known for a while, but just far too expensive for the benefit that it provided?

Could we see the cost of yellow diodes drop dramatically over the next decade?

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