| Abstract: | A photodiode sensor device and systems. The photodiode sensor device
includes a housing portion. The housing portion includes a cylindrical
enclosure. A window is disposed at a first end of the housing portion. A
filter wheel is within the housing portion. A motor positioned within the
housing is adjacent the filter wheel opposite the window. The motor is
attached to the filter wheel. A photodiode sensor within the housing
portion intermediate the first photodiode sensor and the window. The
first photodiode sensor receives filtered light incident on the window
and transmit a signal associated with sensed parameters of the filtered
light. Also, a hemispherical dome for diffusing the light to a
collimating lens has a grating, a focusing lens, and a linear detector
array. An exit port transmits light to the collimating lens. The sensor
array is opposite the grating for sensing the diffused light. |