Forum Discussion
happycamper002
Jun 20, 2017Explorer
Fresnel lens is what this thing is. It's been around since the 1800s. Invented by French optical engineer Agustin Fresnel...first used in light houses.
This modern thin version is available in different configurations. The glass hi temp model has been adopted by lighting design engineers when light pollution abatement was imposed in some localities.
It can be focused,dispersed or softened.
Re-enventing the wheel is exhausting.
This modern thin version is available in different configurations. The glass hi temp model has been adopted by lighting design engineers when light pollution abatement was imposed in some localities.
It can be focused,dispersed or softened.
Re-enventing the wheel is exhausting.
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