LIGHTING DEVICE WITH SILICONE PRINTED LENS

AT1928044TActive Publication Date: 2026-06-15SITECO GMBH
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Patent Information

Application Number
AT2020200317T
Authority / Receiving Office
AT · AT
Patent Type
Patents
Current Assignee / Owner
Priority Date
2019-10-07
Filing Date
2020-10-06
Publication Date
2026-06-15
Estimated Expiration
2040-10-06

AI Technical Summary

Technical Problem

Existing lighting devices face challenges in using temperature-resistant and aging-resistant lens materials without damaging sensitive LEDs or electronic components, while also requiring cost-effective manufacturing processes.

Method used

A lighting device and manufacturing method where a silicone lens body is 3D printed onto a photometric cover opposite the LED, eliminating the need for direct application to the LED and protecting the lens material under a glass or transparent plastic cover, allowing for complex designs and varied light distributions without air gaps, and using silicone's softness to avoid thermal stresses.

Benefits of technology

This approach enables the use of temperature-resistant silicone lenses that can contact LEDs without risk of damage, achieving efficient light distribution and reduced manufacturing costs by eliminating the need for complex overmolding or 3D printing of silicone lenses directly onto LEDs.

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Abstract

The invention relates to a lighting device comprising a photometric cover (4) and at least one light source in the form of an LED (1), wherein the cover (4) is arranged with a surface opposite the LED (1), and a lens body (3) made of silicone, which is printed onto the surface of the cover (4) opposite the LED (1) by means of 3D printing.
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