公开(公告)号：US20210164804A1

公开(公告)日：2021-06-03

申请号：US17262991

申请日：2019-07-23

Applicant: Magic Leap, Inc.

Inventor： Cuthbert Martindale ALLEN ,  Michael Derek ABBOTT ,  Igor LEVINSKY ,  Jeffrey JOHNSON ,  Shimon GOLDSTEIN ,  Aaron Mark SCHUELKE

IPC: G01C25/00 ,  B81B7/02

Abstract: An electronics system has a board with a thermal interface having an exposed surface. A thermoelectric device is placed against the thermal interface to heat the board. Heat transfers through the board from a first region where the thermal interface is located to a second region where an electronics device is mounted. The electronics device has a temperature sensor that detects the temperature of the electronics device. The temperature of the electronics device is used to calibrate an accelerometer and a gyroscope in the electronics device. Calibration data includes a temperature and a corresponding acceleration offset and a corresponding angle offset. A field computer simultaneously senses a temperature, an acceleration and an angle from the temperature sensor, accelerometer and gyroscope and adjusts the measured data with the offset data at the same temperature. The field computer provides corrected data to a controlled system.

公开(公告)号：US20230175866A1

公开(公告)日：2023-06-08

申请号：US18161616

申请日：2023-01-30

Applicant: Magic Leap, Inc.

Inventor： Cuthbert Martindale ALLEN ,  Michael Derek ABBOTT ,  Igor LEVINSKY ,  Jeffrey JOHNSON ,  Shimon GOLDSTEIN ,  Aaron Mark SCHUELKE

IPC: G01C25/00 ,  B81B7/02

CPC classification number: G01C25/005 ,  B81B7/02 ,  B81B2201/0235 ,  B81B2201/0242

Abstract: An electronics system has a board with a thermal interface having an exposed surface. A thermoelectric device is placed against the thermal interface to heat the board. Heat transfers through the board from a first region where the thermal interface is located to a second region where an electronics device is mounted. The electronics device has a temperature sensor that detects the temperature of the electronics device. The temperature of the electronics device is used to calibrate an accelerometer and a gyroscope in the electronics device. Calibration data includes a temperature and a corresponding acceleration offset and a corresponding angle offset. A field computer simultaneously senses a temperature, an acceleration and an angle from the temperature sensor, accelerometer and gyroscope and adjusts the measured data with the offset data at the same temperature. The field computer provides corrected data to a controlled system.

公开(公告)号：US20210325682A1

公开(公告)日：2021-10-21

申请号：US17263001

申请日：2019-07-23

Applicant: Magic Leap, Inc.

Inventor： Michael Derek ABBOTT ,  Aaron Mark SCHUELKE ,  Alejandro LOPEZ ,  Bach NGUYEN

IPC: G02B27/01 ,  H04N5/225 ,  H04N5/247

Abstract: An open cell foam is used to create a seal between a camera and a shell piece. The shell piece, camera, seal and a transparent window form a closed front cavity. Because the cavity is closed, dust can remain away from a lens of the camera.