https://www.iwa.info/en/ausstellerprodukte/iwa24/product-10331476/lumineq-illuminated-reticle-display-for-rangefinders-in-all-lighting-conditions

LUMINEQ superior transparent display provides illuminated reticles for rangefinders. It is emissive, features over 90% high transmission with superior optical quality and a wide adjustable brightness range, allowing illuminated reticles and readouts clearly from daytime to low light conditions. It can also be used at night with image intensification and night vision. It is inorganic and immune to environment.

Lumineq Oy is a manufacturer of transparent displays for active reticles, night vision devices, and range finders. LUMINEQ transparent displays can be placed on the optical path to bring dynamic reticles and information in the line of sight without compromising the optical quality or reliability of the optical devices.

We offer a simplified yet rugged design with over 90% of glass-like transparency, adjustable brightness from night vision to daylight, micro graphics down to 10 micrometers, and super long battery life. Digital reticle display ELT119S-RETICLE-BAT is available for mass production. More information: https://www.lumineq.com/optics

Compared to other technologies like projection and TOLED for the optics applications, LUMINEQ transparent display has the following advantages.

Line-of-sight deployment at the focal point, requiring no extra space and allowing uncompromised optical performance.
Inorganic solid-state design unaffected by environmental factors, suitable for demanding applications and environments.
Excellent optical properties with glass-like 90% of transparency.
Wide adjustable brightness range.
Down to 10-micron graphics details for lit segments and chrome pattern
Fully transparent or with optional chrome reticle visible also when power is not applied.
Compact battery powered driving electronics.
Fully customizable.
Long lifetime >10 years without degradation of the performance.