US 11,940,244 B2
Automatic scope zoom sensing for rifle mounted clip-on fire control displays
Tony J. Maryfield, Poway, CA (US); Mahyar Dadkhah, San Diego, CA (US); Christian Marcello Cugnetti, San Diego, CA (US); and Michael Andre Roes, San Diego, CA (US)
Assigned to Cubic Corporation, San Diego, CA (US)
Filed by Cubic Corporation, San Diego, CA (US)
Filed on Aug. 3, 2022, as Appl. No. 17/880,454.
Claims priority of provisional application 63/228,996, filed on Aug. 3, 2021.
Prior Publication US 2023/0043709 A1, Feb. 9, 2023
Int. Cl. G06G 7/80 (2006.01); F41G 1/38 (2006.01); G02B 23/00 (2006.01); G02B 23/16 (2006.01)
CPC F41G 1/38 (2013.01) [G02B 23/145 (2013.01); G02B 23/16 (2013.01)] 20 Claims
OG exemplary drawing
 
8. An automatic zoom-sensing riflescope display adapter (RDA) system comprising:
a light emitter configured to illuminate an iris of a user with a beam;
a display comprising at least one graphical element visible by the user through an eyepiece;
a sensor configured to focus an image of the iris; and
an RDA controller communicatively coupled to the light emitter, the display, and the sensor and configured to perform operations comprising:
determining a diameter of the iris from the image of the iris using an iris analyzer,
activating the display,
developing a calibration table that correlates the diameter of the iris to a zoom level of an optical scope,
estimating the zoom level of the optical scope from the diameter of the iris via the calibration table, and
adjusting, to match the zoom level, a font size of the at least one graphical element on the display.