PAR RADIOMETER FOR INTERIOR LANDSCAPING
Solar orientation, architecture, electric illumination, and the media through which radiation must pass to reach a plant indoors confound fulfillment of botanical light requirements and evaluation of a location’s ability to meet those requirements.
SUNFLOWER reveals where plants will thrive. It measures the intensity and duration of photosynthetically active radiation (PAR) falling upon a specific location in the home over time. The amount of light received is reported in familiar, practical terms: equivalent hours of direct outdoor sunshine.
Both the professional interior landscaper and casual houseplant enthusiast can use Sunflower to gain a true understanding of dynamic indoor light conditions and compose a successful, verdant space.
Place Sunflower where you will a plant and wait a day or more. Then, turn it over to see how much useful light fell there and choose a species that will prosper.
HOW IT WORKS
Light is collected by a hemispherical lens, passed through a bandpass filter, and focused on a logarithmic light sensor. The incoming radiative flux is processed by a microcontroller and displayed on an OLED screen. The user may switch between instant and cumulative readings. Power is provided via a lithium-ion battery.
Light is surprisingly variable in small spaces. The values represent the number of sunlight hours received per location.
Prototype electronics before and after miniaturization.
The enclosure was SLA 3D printed.
Internal components render
The Allochron Database for Verdant Success accepts the sunlight data afforded by Sunflower and returns species suited for specific indoor locations.