Patent ID: 11874478
Assignee: GOLDEN GATE LIGHT OPTIMIZATION LLC
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 15:
16. A method for designing a lens assembly, the lens assembly having an optical axis, comprising:
a. determining for a detector a specified range of optical irradiances, including a minimum optical irradiance and a maximum optical irradiance, that an optical detector can receive over its light detecting surface at a designated wavelength from a target at an object distance;
b. determining a specified range of object distances, including a near object distance and a far object distance;
c. for each lens in a plurality of lenses computing an optical power per lens and selecting a position along the optical axis, each lens having an effective collection area and an optical power, such that the selection of the position along the optical axis and the optical power is responsive to a determination of a sum of optical irradiance collected by the plurality of lenses in combination onto the detector; and
d. iterating through a selection of optical powers, positions along the optical axis, and effective collection areas for each lens in the plurality of lenses, adjusting the effective collection area and optical power of each in a plurality of lenses until the optical detector receives an amount of irradiance onto its light detecting surface such that over the specified range of object distances the optical detector receives at least the minimum optical irradiance and no more than the maximum optical irradiance over the specified range of object distances.