Patent ID: 11940244
Assignee: CUBIC CORPORATION
Field: Optics (Instruments)
Classification: CPC F  G | IPC F  G

Claim 7:
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.