Abstract: A disclosed hinge assembly for a head-mounted display device comprises a four-bar linkage. A first linkage of the four-bar linkage is mountable to or forms part of a wearable article for a head of a user. A second linkage and a third linkage of the four-bar linkage each rotatably couple the first linkage to a fourth linkage of the four-bar linkage. The fourth linkage of the four-bar linkage is mountable to or forms part of a display device. A disclosed head-mounted display device comprises a display device; a rearward mount by which the head-mounted display device is mountable to a wearable article for a head of a user; and a hinge assembly rotatably coupling the display device to the rearward mount. The hinge assembly includes a four-bar linkage that provides a path of travel for the display device along a curved path from a deployed state to a stowed state.

Abstract: An optical system comprises a first optical module and a second optical module. A tensioned element includes an upper segment attached to the first optical module and a lower segment attached to the second optical module. Movement of the tensioned element thus generates opposing movement of the first and second optical modules, the first optical module moving in a direction parallel to a direction of movement of the upper segment, and the second optical module moving in a direction parallel to a direction of movement of the lower segment.

Abstract: A see-through, near-eye mixed reality head mounted display (HMD) device includes left and right see-through display regions within which virtual images are displayable. These left and right see-through display regions each having a transmittance that is less than one hundred percent. The see-through, near-eye mixed reality HMD device also includes a see-through transmittance compensation mask that includes a left window through which the left see-through display region is visible and a right window through which the right see-through display region is visible. In accordance with various embodiments, the see-through transmittance compensation mask is used to provide a substantially uniform transmittance across the field-of-view of a user wearing the HMD device.

Abstract: An optical system comprises a first optical module and a second optical module. A tensioned element includes an upper segment attached to the first optical module and a lower segment attached to the second optical module. Movement of the tensioned element thus generates opposing movement of the first and second optical modules, the first optical module moving in a direction parallel to a direction of movement of the upper segment, and the second optical module moving in a direction parallel to a direction of movement of the lower segment.

Abstract: A headband is disclosed for supporting a head-worn device with a comfortable and non-intrusive fit. In examples, the headband includes first and second loops supporting the headband on a wearer's head, and an adjustment mechanism for tightening the first and second loops. The adjustment mechanism tightens down the loops to a desired fit, at which point further actuation of the adjustment mechanism has no effect on the loops.

Abstract: A see-through, near-eye mixed reality head mounted display (HMD) device includes left and right see-through display regions within which virtual images are displayable. These left and right see-through display regions each having a transmittance that is less than one hundred percent. The see-through, near-eye mixed reality HMD device also includes a see-through transmittance compensation mask that includes a left window through which the left see-through display region is visible and a right window through which the right see-through display region is visible. In accordance with various embodiments, the see-through transmittance compensation mask is used to provide a substantially uniform transmittance across the field-of-view of a user wearing the HMD device.

Abstract: A head-worn assembly is disclosed including a head-worn device supported on a headband. The headband may include a first loop positioned around the head, and possibly a second loop affixed to the first loop and positioned over the head. Weight distribution and comfort of the head-worn assembly may be optimized by mounting the head-worn device at an approximate center (front to back) of the headband, and further balancing the weight of the head-worn device (front to back) over the mounting point. The weight distribution and comfort of the head-worn assembly may be further optimized by providing several user-customizable adjustments to the head-worn assembly.

Abstract: A see-through, near-eye mixed reality head mounted display (HMD) device includes left and right see-through display regions within which virtual images are displayable. These left and right see-through display regions each having a transmittance that is less than one hundred percent. The see-through, near-eye mixed reality HMD device also includes a see-through transmittance compensation mask that includes a left window through which the left see-through display region is visible and a right window through which the right see-through display region is visible. In accordance with various embodiments, the see-through transmittance compensation mask is used to provide a substantially uniform transmittance across the field-of-view of a user wearing the HMD device.

Abstract: Described herein are display devices, and methods for use therewith. Such a device can be used to display one or more virtual images within a first see-through portion of the device, adjacent to which is a second see-through portion that does not overlap with the first see-through portion. The first and second see-through portions of the device collectively cover a substantially entire field-of-view (FOV) of a user. A transmittance (and/or other optical characteristic(s)) corresponding to the first see-through portion of the device and a transmittance (and/or other optical characteristic(s)) corresponding to the second see-through portion of the device can be caused (e.g., controlled) to be substantially the same to provide a substantially uniform transmittance (and/or other optical characteristic(s)) across the substantially entire FOV of a user. More generally, optical characteristics of see-through portions of the device can be controlled, e.g., by a user and/or through feedback.

Abstract: A headband is disclosed for supporting a head-worn device with a comfortable and non-intrusive fit. In examples, the headband includes first and second loops supporting the headband on a wearer's head, and an adjustment mechanism for tightening the first and second loops. The adjustment mechanism tightens down the loops to a desired fit, at which point further actuation of the adjustment mechanism has no effect on the loops.

Abstract: A headset is disclosed including optics supported on a headband by a pair of temple arm assemblies. The temple arm assemblies are positioned on either side of a wearer's head when the headset is worn. Each temple arm assembly may include one or more kinematic assemblies allowing pivotal and/or translational adjustment of the optics to optimize optical properties such as line-of-sight, pantoscopic tilt and/or eye relief. The one or more kinematic assemblies for each temple arm may have a variety of different pivots and/or slides enabling adjustment of the optics and optical properties.

Abstract: A head-worn assembly is disclosed including a head-worn device supported on a headband. The headband may include a first loop positioned around the head, and possibly a second loop affixed to the first loop and positioned over the head. Weight distribution and comfort of the head-worn assembly may be optimized by mounting the head-worn device at an approximate center (front to back) of the headband, and further balancing the weight of the head-worn device (front to back) over the mounting point. The weight distribution and comfort of the head-worn assembly may be further optimized by providing several user-customizable adjustments to the head-worn assembly.

Abstract: A see-through, near-eye mixed reality head mounted display (HMD) device includes left and right see-through display regions within which virtual images are displayable. These left and right see-through display regions each having a transmittance that is less than one hundred percent. The see-through, near-eye mixed reality HMD device also includes a see-through transmittance compensation mask that includes a left window through which the left see-through display region is visible and a right window through which the right see-through display region is visible. In accordance with various embodiments, the see-through transmittance compensation mask is used to provide a substantially uniform transmittance across the field-of-view of a user wearing the HMD device.

Abstract: Described herein are display devices, and methods for use therewith. Such a device can be used to display one or more virtual images within a first see-through portion of the device, adjacent to which is a second see-through portion that does not overlap with the first see-through portion. The first and second see-through portions of the device collectively cover a substantially entire field-of-view (FOV) of a user. A transmittance (and/or other optical characteristic(s)) corresponding to the first see-through portion of the device and a transmittance (and/or other optical characteristic(s)) corresponding to the second see-through portion of the device can be caused (e.g., controlled) to be substantially the same to provide a substantially uniform transmittance (and/or other optical characteristic(s)) across the substantially entire FOV of a user. More generally, optical characteristics of see-through portions of the device can be controlled, e.g., by a user and/or through feedback.

Abstract: A method and design for cooling the temperature of induction air fed into a motor vehicle engine, which includes an intercooler housed in an induction plenum. The intake side of the plenum feeds air compressed by a supercharger or turbocharger to the intercooler core. The intercooler core consists of a series of cooling cylinders, held side by side in an arched arrangement by a rigid cartridge. The use of the multiple cooling cylinders increases the surface area of the intercooler presented to the airstream, and thus the efficiency of the intercooler. The use of a rigid cartridge that contains the cooling cylinders, and fits inside a pair of matching machined end caps which simultaneously hold the cartridge and feed coolant to the intercooler cores, enables efficient assembly of the intercooler. The system design is readily adaptable for various engine conformations.

Abstract: A band that may be utilized for a timepiece, such as a watch, is disclosed. The band may have a plurality of joined links, and each link includes a cover member, an extension element, a first springbar, and a second springbar. The extension element defines a first channel and a second channel, the first springbar extends through the first channel to secure the extension element to the cover member, and the second springbar extends through the second channel to join the extension element to an adjacent cover member. In addition, the cover member is configured to join with an adjacent extension element that is separate from the extension element.

Abstract: A band that may be utilized for a timepiece, such as a watch, is disclosed. The band may have a plurality of joined links, and each link includes a cover member, an extension element, a first springbar, and a second springbar. The extension element defines a first channel and a second channel, the first springbar extends through the first channel to secure the extension element to the cover member, and the second springbar extends through the second channel to join the extension element to an adjacent cover member. In addition, the cover member is configured to join with an adjacent extension element that is separate from the extension element.