System and method for compensation of illumination beam misalignment
First Claim
1. A system comprising:
- a beam steering assembly configured to adjust an incident beam to form a corrected beam;
a beam monitoring assembly optically coupled to the beam steering assembly, the beam monitoring assembly configured to generate monitoring data for the corrected beam, wherein the monitoring data includes one or more offset parameters of the corrected beam, wherein the beam monitoring assembly comprises;
a leak mirror configured to;
receive the corrected beam from the beam steering assembly;
reflect a first portion of the corrected beam; and
transmit a second portion of the corrected beam; and
a beam splitter configured to;
receive the second portion of the corrected beam transmitted by the leak mirror;
transmit a third portion of the corrected beam through at least a first optical element to a first imaging device; and
reflect a fourth portion of the corrected beam through at least a second optical element to a second imaging device,wherein the third portion of the corrected beam and the fourth portion of the corrected beam are formed from the second portion of the corrected beam; and
a controller communicatively coupled to the beam monitoring assembly and the beam steering assembly, wherein the controller includes one or more processors configured to execute a set of program instructions stored in memory, wherein the program instructions are configured to cause the one or more processors to;
store one or more zero parameters of the corrected beam;
calculate at least one difference between the one or more zero parameters and the one or more offset parameters of the corrected beam;
determine one or more beam position adjustments of the incident beam based on the at least one difference between the one or more zero parameters and the one or more offset parameters of the corrected beam; and
direct the beam steering assembly, via one or more motor drivers, to actuate one or more motors to adjust the incident beam to form the corrected beam.
1 Assignment
0 Petitions
Accused Products
Abstract
A system includes a beam steering assembly configured to adjust an incident beam to form a corrected beam; a beam monitoring assembly configured to generate monitoring data for the corrected beam including one or more offset parameters of the corrected beam; and a controller configured to store one or more zero parameters of the corrected beam, calculate at least one difference between the one or more zero parameters and the one or more offset parameters of the corrected beam, determine one or more beam position adjustments of the incident beam based on the at least one difference between the one or more zero parameters and the one or more offset parameters of the corrected beam, and direct the beam steering assembly via one or more motor drivers to actuate one or more motors to adjust the incident beam to form the corrected beam.
-
Citations
44 Claims
-
1. A system comprising:
-
a beam steering assembly configured to adjust an incident beam to form a corrected beam; a beam monitoring assembly optically coupled to the beam steering assembly, the beam monitoring assembly configured to generate monitoring data for the corrected beam, wherein the monitoring data includes one or more offset parameters of the corrected beam, wherein the beam monitoring assembly comprises; a leak mirror configured to; receive the corrected beam from the beam steering assembly; reflect a first portion of the corrected beam; and transmit a second portion of the corrected beam; and a beam splitter configured to; receive the second portion of the corrected beam transmitted by the leak mirror; transmit a third portion of the corrected beam through at least a first optical element to a first imaging device; and reflect a fourth portion of the corrected beam through at least a second optical element to a second imaging device, wherein the third portion of the corrected beam and the fourth portion of the corrected beam are formed from the second portion of the corrected beam; and a controller communicatively coupled to the beam monitoring assembly and the beam steering assembly, wherein the controller includes one or more processors configured to execute a set of program instructions stored in memory, wherein the program instructions are configured to cause the one or more processors to; store one or more zero parameters of the corrected beam; calculate at least one difference between the one or more zero parameters and the one or more offset parameters of the corrected beam; determine one or more beam position adjustments of the incident beam based on the at least one difference between the one or more zero parameters and the one or more offset parameters of the corrected beam; and direct the beam steering assembly, via one or more motor drivers, to actuate one or more motors to adjust the incident beam to form the corrected beam. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
-
-
23. A method, comprising:
-
receiving an incident beam; adjusting the incident beam to form a corrected beam via a beam steering assembly; generating monitoring data for the corrected beam via a beam monitoring assembly optically coupled to the beam steering assembly, wherein the monitoring data includes one or more offset parameters of the corrected beam, wherein the beam monitoring assembly comprises; a leak mirror configured to; receive the corrected beam from the beam steering assembly; reflect a first portion of the corrected beam; and transmit a second portion of the corrected beam; and a beam splitter configured to; receive the second portion of the corrected beam transmitted by the leak mirror; transmit a third portion of the corrected beam through at least a first optical element to a first imaging device; and reflect a fourth portion of the corrected beam through at least a second optical element to a second imaging device, wherein the third portion of the corrected beam and the fourth portion of the corrected beam are formed from the second portion of the corrected beam; storing one or more zero parameters of the corrected beam; calculating at least one difference between the one or more zero parameters and the one or more offset parameters of the corrected beam; determining one or more beam position adjustments of the incident beam based on the at least one difference between the one or more zero parameters and the one or more offset parameters of the corrected beam; and directing the beam steering assembly, via one or more motor drivers, to actuate one or more motors based on the one or more beam position adjustments to adjust the incident beam to form the corrected beam. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
-
Specification