Techniques are disclosed for mounting optical elements in optical systems. A system may include a mirror assembly. The mirror assembly may include a mounting stem and a mirror. The system may further include a mounting ring. The system may further include a metering structure. The metering structure may include a receiving interface having an inner surface defining an aperture. The metering structure may be configured to receive the mounting stem within the aperture and receive the mounting ring within a gap between the mounting stem and the inner surface. The system may further include a bonding layer disposed between the mounting stem and the mounting ring. Additional apparatus and related methods are provided.
G02B 7/182 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques pour miroirs pour miroirs
G02B 7/183 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques pour miroirs pour miroirs spécialement adaptés à de très grands miroirs, p.ex. pour l'astronomie
G02B 23/02 - Télescopes ou lunettes d'approche, p.ex. jumelles; Périscopes; Instruments pour voir à l'intérieur de corps creux; Viseurs; Pointage optique ou appareils de visée comprenant des prismes ou des miroirs
2.
GIMBAL SYSTEM WITH DUAL-WIPER GASKET FOR A ROTARY SEAL
System including a rotary seal created by a dual-wiper gasket. In exemplary embodiments, the system may comprise a mounting portion and a gimbal assembly. The gimbal assembly may include a first gimbal pivotably connected to and supported by the mounting portion for rotation of the first gimbal about a first axis, and a second gimbal pivotably connected to and supported by the first gimbal for rotation of the second gimbal about a second axis transverse to the first axis. The system also may comprise a gasket encircling the first axis and creating a rotary seal between the mounting portion and the first gimbal. The gasket may have an inner wiper encircled by an outer wiper, with both wipers disposed in circumferentially sealed engagement with the mounting portion or the first gimbal.
F16J 15/3232 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par joints élastiques, p.ex. joints toriques avec au moins une lèvre ayant plusieurs lèvres
F16J 15/3224 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par joints élastiques, p.ex. joints toriques avec au moins une lèvre étant capable de s’adapter à des variations de distances ou de désalignement entre les surfaces, p.ex. capable de compenser des défauts d’excentricité ou des déviations angulaires
F16J 15/324 - Agencements pour graissage ou refroidissement du joint d’étanchéité lui-même
Imaging system comprising an anti-rotation mount and an image detector. The mount may comprise a first frame member having a fixed relation to a set of mutually transverse X, Y, and Z axes, and a second frame member. The second frame member may be connected to the first frame member via a coupling assembly, such that the frame members are not permitted to rotate relative to one another. The mount also may comprise X-axis, Y-axis, and Z-axis coupling structures each formed at least partially by the coupling assembly and each permitting axial motion of the frame members relative to one another only substantially parallel to the X axis, Y axis, and Z axis, respectively. The image detector may be connected to the mount via the second frame member.
G03B 17/00 - APPAREILS OU DISPOSITIONS POUR PRENDRE DES PHOTOGRAPHIES, POUR LES PROJETER OU LES VISIONNER; APPAREILS OU DISPOSITIONS UTILISANT DES TECHNIQUES ANALOGUES UTILISANT D'AUTRES ONDES QUE DES ONDES OPTIQUES; LEURS ACCESSOIRES - Parties constitutives des appareils ou corps d'appareils; Leurs accessoires
F16M 11/04 - Moyens pour la fixation des appareils; Moyens permettant le réglage des appareils par rapport au banc
F16M 11/12 - Moyens pour la fixation des appareils; Moyens permettant le réglage des appareils par rapport au banc permettant la rotation dans plus d'une direction
F16M 11/18 - Têtes des supports avec mécanisme déplaçant les appareils par rapport au banc
F16M 13/02 - Autres supports ou appuis pour positionner les appareils ou les objets; Moyens pour maintenir en position les appareils ou objets tenus à la main pour être portés par un autre objet ou lui être fixé, p.ex. à un arbre, une grille, un châssis de fenêtre, une bicyclette
4.
METHODS AND SYSTEMS FOR SUPPRESSING ATMOSPHERIC TURBULENCE IN IMAGES
Various techniques are disclosed to suppress distortion in images, such as distortion caused by atmospheric turbulence. For example, similar image blocks from a sequence of images may be identified and tracked along motion trajectories to construct spatiotemporal volumes. The motion trajectories are smoothed to estimate the true positions of the image blocks without random displacements due to the distortion, and the smoothed trajectories are used to aggregate the image blocks in their new estimated positions to reconstruct the sequence of images with the random displacements suppressed. Blurring that may remain within each image block of the spatiotemporal volumes may be suppressed by modifying the spatiotemporal volumes in a collaborative fashion. For example, a decorrelating transform may be applied to the spatiotemporal volumes to suppress the blurring in a transform domain, such as by alpha-rooting or other suitable operations on the coefficients of the spectral volumes.
H04N 19/176 - Procédés ou dispositions pour le codage, le décodage, la compression ou la décompression de signaux vidéo numériques utilisant le codage adaptatif caractérisés par l’unité de codage, c. à d. la partie structurelle ou sémantique du signal vidéo étant l’objet ou le sujet du codage adaptatif l’unité étant une zone de l'image, p.ex. un objet la zone étant un bloc, p.ex. un macrobloc
H04N 19/86 - Procédés ou dispositions pour le codage, le décodage, la compression ou la décompression de signaux vidéo numériques utilisant le pré-traitement ou le post-traitement spécialement adaptés pour la compression vidéo mettant en œuvre la diminution des artéfacts de codage, p.ex. d'artéfacts de blocs
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.
Various techniques are provided to monitor electrical equipment. In some implementations, a monitoring system for a cabinet may include an infrared camera configured to capture thermal images of at least a portion of electrical equipment positioned in an interior cavity of the cabinet. In some implementations, the monitoring system also includes a communication interface configured to transmit the thermal images from the infrared camera for external viewing by a user. In some implementations, the thermal images may be provided through various wired and wireless communication techniques. In some implementations, the infrared camera may receive electrical power through a physical coupling to an electrical connector within the cabinet and/or through electromagnetic energy harvesting techniques. Other implementations are also provided.
G08B 13/19 - Déclenchement influencé par la chaleur, la lumière, ou les radiations de longueur d'onde plus courte; Déclenchement par introduction de sources de chaleur, de lumière, ou de radiations de longueur d'onde plus courte utilisant des systèmes détecteurs de radiations passifs utilisant des systèmes détecteurs de radiations infrarouges
Various techniques are disclosed for smart surveillance camera systems and methods using thermal imaging to intelligently control illumination and monitoring of a surveillance scene. For example, a smart camera system may include a thermal imager, an IR illuminator, a visible light illuminator, a visible/near IR (NIR) light camera, and a processor. The camera system may capture thermal images of the scene using the thermal imager, and analyze the thermal images to detect a presence and an attribute of an object in the scene. In response to the detection, various light sources may be selectively operated to illuminate the object only when needed or desired, with a suitable type of light source, with a suitable beam angle and width, or in otherwise desirable manner. The visible/NIR light camera may also be selectively operated based on the detection to capture or record surveillance images containing objects of interest.
Various techniques are disclosed for performing non-uniformity correction (NUC) for infrared imaging devices. Intentionally blurred image frames may be obtained and processed to correct for FPN (e.g., random spatially uncorrelated FPN in one embodiment) associated with infrared sensors of the infrared imaging device. Intentionally blurred image frames may be used to distinguish between FPN associated with the infrared sensors and desired scene information. Advantageously, such techniques may be implemented without requiring the use of a shutter to perform flat field correction for the infrared imaging device.
Systems and methods disclosed herein provide, for some embodiments, infrared cameras and target position acquisition techniques for various applications. For example, in one embodiment, a system may include a portable imaging/viewing subsystem having a target position finder and may also include a fixed mount camera subsystem having a camera and a camera positioner. A communications link may be configured to communicate a signal from the target position finder to the camera positioner. The signal may be representative of a position of a target being imaged/viewed with the portable imaging/viewing subsystem. The camera positioner may aim the camera toward the target in response to the signal. The target may, for example, be a man overboard. Thus, the system may be useful in search and rescue operations.
G08B 13/196 - Déclenchement influencé par la chaleur, la lumière, ou les radiations de longueur d'onde plus courte; Déclenchement par introduction de sources de chaleur, de lumière, ou de radiations de longueur d'onde plus courte utilisant des systèmes détecteurs de radiations passifs utilisant des systèmes de balayage et de comparaison d'image utilisant des caméras de télévision
10.
GIMBAL SYSTEM WITH FORCED FLOW OF EXTERNAL AIR THROUGH A CHANNEL TO REMOVE HEAT
Gimbal system, including apparatus and methods, with forced flow of external air through a channel to remove heat. The system may comprise a support portion including at least one electronic component and defining a channel, a gimbal assembly pivotably connected to and supported by the support portion, and a payload pivotably orientable with respect to the support portion by the gimbal assembly. The support portion alone or collectively with the gimbal assembly may define a chamber in which the electronic component is disposed. The support portion may include a forced-air device configured to drive flow of external air through the channel, thereby removing heat transferred to the channel from the electronic component.
Various techniques are provided for identifying filters used with infrared cameras. A plurality of filters may be installed in a filter wheel of an infrared camera. Identifiers associated with the filters may be read by the infrared camera to identify the various types of filters currently installed in the filter wheel. The installed filters can be selected by the camera or a user for use in particular applications as desired. For example, filters may be selected based on associations between the filters, filter identifiers, and targets stored in a table or other record maintained by the infrared camera. Settings of the infrared camera may be adjusted in response to filter selections.
Systems, including apparatus and methods, for driving airflow along a surface of a gimbal, thereby cooling the system and potentially allowing operation at higher ambient temperatures.
Optical systems, including apparatus and methods, for obtaining images, particularly with multiple fields of view. These systems may utilize a plurality of optical components with different optical axes, where the optical axes may be selectively rotated into alignment with an imaging axis to obtain images having various discrete fields of view.
G02B 23/00 - Télescopes ou lunettes d'approche, p.ex. jumelles; Périscopes; Instruments pour voir à l'intérieur de corps creux; Viseurs; Pointage optique ou appareils de visée
Imaging systems in which an undedicated optical component is configured to undergo corrective motion and/or other correction of image data, and thus to function as a stabilization component. Because an undedicated optical component functions as the stabilization component, the stabilization occurs upstream, rather than downstream, from separation of the incoming image data into two or more beams. As a result, only one stabilization component is required regardless of whether the system is configured to split the image data into multiple data channels, and imaging systems as described herein therefore may be particularly well-suited for integration into a shared- aperture imaging system.
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