Wearable apparatus with integrated infrared imaging module
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G02B-027/01
H04N-005/225
H04N-005/33
H04N-005/232
H04N-005/365
출원번호
US-0802615
(2013-03-13)
등록번호
US-9509924
(2016-11-29)
발명자
/ 주소
Terre, William A.
Teich, Andrew C.
Lepore, Giovanni
Högasten, Nicholas
Hoelter, Theodore R.
Strandemar, Katrin
출원인 / 주소
FLIR SYSTEMS, INC.
대리인 / 주소
Haynes and Boone, LLP
인용정보
피인용 횟수 :
2인용 특허 :
59
초록▼
Various techniques are disclosed for providing a wearable apparatus having an integrated infrared imaging module. In one example, a wearable apparatus implemented as a self-contained breathing apparatus (SCBA) may include a shield to protect a user from an external environment, one or more infrared
Various techniques are disclosed for providing a wearable apparatus having an integrated infrared imaging module. In one example, a wearable apparatus implemented as a self-contained breathing apparatus (SCBA) may include a shield to protect a user from an external environment, one or more infrared imaging modules, a projector, a processor, and a communication module for projecting a user-viewable thermal image onto a surface of the shield. Such infrared imaging modules may be positioned internal to the SCBA for protection from a hazardous external environment. In another example, a wearable apparatus implemented as a welding mask may include one or more infrared imaging modules, a projector, a processor, and a communication module, so as to project a user-viewable thermal image onto a surface of a shield of the welding mask, while at the same time protecting these components and the welder's face from a harsh welding environment.
대표청구항▼
1. A wearable apparatus comprising: a shield configured to protect at least a portion of a user's face from an external environment and pass at least some visible light from the external environment to the user for viewing the external environment through the shield;an infrared imaging module compri
1. A wearable apparatus comprising: a shield configured to protect at least a portion of a user's face from an external environment and pass at least some visible light from the external environment to the user for viewing the external environment through the shield;an infrared imaging module comprising a lens and a focal plane array (FPA) configured to capture a thermal image of the external environment;a processor configured to convert the thermal image into a user-viewable image of the external environment; anda projector configured to project the user-viewable image onto an inner surface of the shield for viewing by the user while wearing the apparatus,wherein the infrared imaging module is positioned interior to and behind the shield to be protected from the external environment by the shield. 2. The apparatus of claim 1, wherein: the shield comprises a window configured to pass infrared radiation from the external environment;the infrared imaging module is positioned behind the window of the shield to receive the infrared radiation passed through the window. 3. The apparatus of claim 2, wherein: the shield comprises an aperture; andthe window is part of a window assembly that seals the aperture. 4. The apparatus of claim 3, wherein: the window is made of a material comprising silicon; andthe window assembly comprises a frame configured to hold the window and seal the aperture with the window. 5. The apparatus of claim 3, wherein the infrared imaging module is configured to seal the aperture to prevent the user from being exposed to the external environment if the seal provided by the window assembly fails. 6. The apparatus of claim 1, wherein: the apparatus is a self-contained breathing apparatus (SCBA) further comprising a mask frame sealingly coupled to the shield and configured to sealingly engage the user. 7. A wearable apparatus comprising: a shield configured to protect at least a portion of a user's face from an external environment;an infrared imaging module comprising a focal plane array (FPA) configured to capture a thermal image of the external environment;a processor configured to convert the thermal image into a user-viewable image of the external environment; anda projector configured to project the user-viewable image onto an inner surface of the shield for viewing by the user while wearing the apparatus,wherein the apparatus is a welding mask and at least a majority of the shield is substantially opaque and configured to substantially block visible light from the external environment. 8. The apparatus of claim 1, wherein: the infrared imaging module is a first infrared imaging module;the thermal image is a first thermal image;the apparatus further comprises a second infrared imaging module configured to capture a second thermal image of the external environment; andthe user-viewable image is a stereoscopic image of the external environment based on the first and second thermal images. 9. The apparatus of claim 1, wherein the projector is further configured to perform a distortion correction of the user-viewable image to compensate for at least one of an angle of projection or a shape of the inner surface of the shield. 10. The apparatus of claim 1, wherein the projector is a holographic projector. 11. The apparatus of claim 1, wherein: the thermal image is an unblurred thermal image of the external environment;the infrared imaging module is further configured to capture an intentionally blurred thermal image of the external environment; andthe processor is further configured to determine a plurality of non-uniform correction (NUC) terms based on the intentionally blurred thermal image, apply the NUC terms to the unblurred thermal image to remove noise form the unblurred thermal image, and convert the unblurred thermal image into the user-viewable image. 12. A method of presenting a user-viewable image on a wearable apparatus, the method comprising: capturing, using a lens and a focal plane array (FPA) of an infrared imaging module of the wearable apparatus, a thermal image of an external environment;converting the thermal image into a user-viewable image of the external environment;projecting the user-viewable image onto an inner surface of a shield of the wearable apparatus for viewing by a user;passing, by the shield, at least some visible light from the external environment to the user for viewing the external environment through the shield; andprotecting at least a portion of the user's face and the infrared imaging module from the external environment by the shield while the wearable apparatus is worn by the user, wherein the infrared imaging module is positioned interior to and behind the shield to be protected from the external environment. 13. The method of claim 12, further comprising passing, by a window provided in the shield, infrared radiation from the external environment to the infrared imaging module, wherein the infrared imaging module is positioned behind the window of the shield to receive the infrared radiation passed through the window. 14. The method of claim 13, further comprising sealing, by a window assembly that comprises the window, an aperture in the shield. 15. The method of claim 14, wherein: the passing of the infrared radiation is by a material of the window comprising silicon; andthe sealing of the aperture in the shield comprises holding the window by a frame of the window assembly to seal the aperture with the window. 16. The method of claim 14, further comprising sealing the aperture by the infrared imaging module to prevent the user from being exposed to the external environment if the sealing by the window assembly fails. 17. The method of claim 12, wherein the apparatus is a self-contained breathing apparatus (SCBA), the method further comprising sealingly engaging a mask frame of the apparatus with the user, wherein the mask frame is sealingly coupled to the shield. 18. The method of claim 12, wherein the apparatus is a welding mask and at least a majority of the shield is substantially opaque, the method further comprising substantially blocking visible light from the external environment by the majority of the shield that is substantially opaque. 19. The method of claim 12, wherein: the infrared imaging module is a first infrared imaging module;the thermal image is a first thermal image;the method further comprises capturing, at a second infrared imaging module of the wearable apparatus, a second thermal image of the external environment; andthe user-viewable image is a stereoscopic image of the external environment based on the first and second thermal images. 20. The method of claim 12, further comprising: performing a distortion correction of the user-viewable image to compensate for at least one of an angle of projection or a shape of the inner surface of the shield. 21. The method of claim 12, wherein the projecting is performed by a holographic projector. 22. The method of claim 12, wherein the thermal image is an unblurred thermal image, the method further comprising: capturing an intentionally blurred thermal image of the external environment;determining a plurality of non-uniform correction (NUC) terms based on the intentionally blurred thermal image;applying the NUC terms to the unblurred thermal image to remove noise from the unblurred theiinal image; andconverting the unblurred thenaal image into the user-viewable image. 23. A method of constructing a wearable apparatus, the method comprising: providing a shield for protecting at least a portion of a user's face from an external environment, wherein the shield is configured to pass at least some visible light for the user to view the external environment through the shield;positioning an infrared imaging module interior to and behind the shield to protect the infrared imaging module from the external environment by the shield, wherein the infrared imaging module comprises a lens and a focal plane array (FPA) configured to capture a thermal image of the external environment while the apparatus is worn by the user;positioning a projector relative to the shield, wherein the projector is configured to project a user-viewable image of the external environment onto an inner surface of the shield for viewing by the user while wearing the apparatus; andcommunicatively coupling a processor with the infrared imaging module and the projector. 24. The method of claim 23, further comprising: providing an aperture in the shield;sealing the aperture with a window that is configured to pass infrared radiation from the external environment; andpositioning the infrared image module behind the window of the shield to receive the infrared radiation passed through the window.
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