Link member for a flywheel

The present invention relates to a flywheel apparatus for energy storage and recovery including a flywheel system coupled to a flywheel drive system. The flywheel system includes a housing with a chamber in which a flywheel on a shaft rotates. The shaft is mounted on the housing via at least one damper which may allow but constrain and/or damp movement of the flywheel and shaft relative to the housing. The flywheel system has a flywheel lubrication system. The flywheel drive system may have a different type of fluid from the flywheel system. The two fluids may be kept separate by a sealing arrangement. Movement of the flywheel shaft relative to the housing is accommodated by a link member which allows the flywheel shaft to move relative to the housing. The link member also prevents the sealing arrangement from becoming damaged or becoming ineffective, and may also act as a mechanical fuse.

ISOTHERMAL ENCLOSURE WITH OPTICAL APERTURE

An optical device may include an enclosure including an optical aperture and a plurality of optical components positioned within the enclosure, where the plurality of optical components are to emit and/or receive light through the optical aperture. The optical device may include at least one heating element or cooling element to provide an isothermal environment to the plurality of optical components, where the at least one heating element or cooling element is thermally coupled with the enclosure. 1. An optical device , comprising:a first enclosure including a first optical aperture;a plurality of optical components positioned within the first enclosure; wherein the first enclosure is positioned within the second enclosure, and', the first enclosure is an isothermal enclosure and the second enclosure is a hermetically-sealed enclosure, or', 'the first enclosure is the hermetically-sealed enclosure and the second enclosure is the isothermal enclosure;, 'wherein], 'a second enclosure including a second optical aperture,'} 'wherein the at least one heating element or cooling element is thermally coupled with the isothermal enclosure; and', 'at least one heating element or cooling element to provide an isothermal environment to the plurality of optical components,'} 'wherein the first enclosure and the second enclosure are positioned within the thermally-insulating enclosure; and', 'a thermally-insulating enclosure including a third optical aperture,'}wherein the plurality of optical components are to emit and/or receive light through the first optical aperture, the second optical aperture, and the third optical aperture.2. The optical device of claim 1 , wherein the plurality of optical components include a laser component to emit an optical beam and a scanning component to scan a field of view with the optical beam through the first optical aperture claim 1 , the second optical aperture claim 1 , and the third optical aperture.3. The optical device of claim 1 , ...

Optimization of heater shape for integrated heater for optical benches

A method may include identifying, by a device, a set of components of an optical device. The method may include determining, by the device, a set of design criteria based on the set of components of the optical device. The method may include identifying, by the device, an initial heater configuration based on the set of design criteria. The method may include determining, by the device, a set of optimization parameters for determining a target heater configuration based on the set of design criteria. The method may include performing, by the device and based on the set of optimization parameters, an optimization procedure to alter the initial heater configuration to determine the target heater configuration. The method may include providing, by the device, information identifying the target heater configuration based on performing the optimization procedure.

INTEGRATED HEATER WITH OPTIMIZED SHAPE FOR OPTICAL BENCHES

An optical bench may include an integrated heater. The integrated heater may include a substrate and a heating element disposed onto the substrate. The heating element may include at least one electrical trace. The integrated heater may be associated with a non-monolithic shape configured to cause the heating element to heat an optical device disposed in proximity to the optical bench with a temperature gradient of less than a threshold. The integrated heater may be disposed onto at least one of a surface of the optical bench or a surface of an optical component of the optical device. 1. An optical bench , comprising: [ a substrate; and', 'the heating element comprising at least one electrical trace,', 'a heating element disposed onto the substrate,'}], 'the integrated heater comprising, 'wherein the integrated heater is associated with a non-monolithic shape configured to cause the heating element to heat an optical device disposed in proximity to the optical bench with a temperature gradient of less than a threshold,', 'wherein the integrated heater is disposed onto at least one of a surface of the optical bench or a surface of an optical component of the optical device., 'an integrated heater,'}2. The optical bench of claim 1 , wherein a thickness of the integrated heater is less than 450 micrometers.3. The optical bench of claim 1 , wherein the substrate is the surface of the optical bench without an adhesive layer disposed between the surface of the optical bench and the substrate.4. The optical bench of claim 1 , wherein at least part of the substrate is a flexible substrate.5. The optical bench of claim 1 , wherein the substrate is a glass substrate.6. The optical bench of claim 1 , wherein the substrate is the surface of the optical component of the optical device.7. The optical bench of claim 1 , wherein the optical device is a wavelength selective switch (WSS) or a twin 1×20 WSS.8. The optical bench of claim 1 , wherein the heating element is a uniform ...

PROGRESSIVE HEATSINK

A heatsink may include a base and a plurality of fins, configured to be disposed in an air flow, that extend orthogonally from the base. The plurality of fins may have at least one of a height, an inter-fin spacing, or a thickness that varies in a direction of the air flow. 1. An apparatus , comprising:a heatsink including a plurality of fins configured to be disposed in an air flow; and 'the heatsink configured to provide a heat dissipation that varies along a length of the heatsink in the direction of the air flow.', 'a plurality of heat-generating devices in thermal communication with the heatsink and disposed along a direction of the air flow,'}2. The apparatus of claim 1 , wherein the plurality of fins have a first surface area in a first cross-section of the heatsink claim 1 , and a second surface area in a second cross-section of the heatsink.3. The apparatus of claim 1 , wherein the plurality of fins have a first inter-fin spacing in a first cross-section of the heatsink claim 1 , and a second inter-fin spacing in a second cross-section of the heatsink.4. The apparatus of claim 1 , wherein a fin claim 1 , of the plurality of fins claim 1 , includes a first section and a second section along the direction of the air flow claim 1 , and a step between the first section and the second section claim 1 , such that the fin has a first height in the first section and a second height in the second section.5. The apparatus of claim 1 , wherein a fin claim 1 , of the plurality of fins claim 1 , is tapered from a first end to a second end of the fin in the direction of the air flow.6. The apparatus of claim 1 , wherein the plurality of fins are pin fins projecting orthogonal to the direction of the air flow.7. The apparatus of claim 1 , wherein the plurality of fins are pin fins projecting orthogonal to the direction of the air flow claim 1 , andwherein heights of the pin fins are graduated in the direction of the air flow.8. The apparatus of claim 1 , wherein the heat- ...

Progressive heatsink

A heatsink may include a base and a plurality of fins, configured to be disposed in an air flow, that extend orthogonally from the base. The plurality of fins may have at least one of a height, an inter-fin spacing, or a thickness that varies in a direction of the air flow.

Link member for a flywheel

A flywheel apparatus for energy storage and recovery typically includes a flywheel system which is coupled to a flywheel drive system (18). The flywheel system comprises a housing (1) within which there is a chamber (1a) in which a flywheel (3) on a shaft (4) rotates. Vibration of the housing (1) or the shaft (4) can result in unsettling noise or damage to the flywheel system. The shaft (4) is therefore mounted on the housing (1) via at least one damper (6, 7) which may allow but constrain and/or damp movement of the flywheel (3) and shaft (4) relative to the housing (1). The flywheel system is provided with a flywheel lubrication system. The flywheel drive system may be supplied with a different type of fluid from the flywheel system. The two fluids may be kept separate by a sealing arrangement (11, 20). Movement of the flywheel shaft (4) relative to the housing (1) is accommodated by a link member (14) which is arranged to allow the flywheel shaft (4) to move relative to the housing (1) without causing damage to the flywheel drive system. The link member (14) also prevents the sealing arrangement (11, 20) from becoming damaged or becoming ineffective, thus preventing the flywheel system fluid and the flywheel drive system fluid from contaminating one another. The link member (14) may also act as a mechanical fuse.

Link member for a flywheel

Integrated heater with optimized shape for optical benches

An optical bench may include an integrated heater. The integrated heater may include a substrate and a heating element disposed onto the substrate. The heating element may include at least one electrical trace. The integrated heater may be associated with a non-monolithic shape configured to cause the heating element to heat an optical device disposed in proximity to the optical bench with a temperature gradient of less than a threshold. The integrated heater may be disposed onto at least one of a surface of the optical bench or a surface of an optical component of the optical device.

Dual thermal control element configuration for opto-mechanical assembly

An opto-mechanical assembly includes a first thermal control element disposed on a region of a first section of an enclosure; a second thermal control element disposed on a region of a second section of the enclosure; and an optical element that includes a first portion and a second portion. The first thermal control element is configured to heat the first portion of the optical element and to cause the first portion of the optical element to be associated with a first temperature, and the second thermal control element is configured to heat the second portion of the optical element and to cause the second portion of the optical element to be associated with a second temperature. This causes a difference between the first temperature and the second temperature to satisfy a temperature difference threshold. Accordingly, this also causes a temperature gradient along an axis of the optical element to satisfy a temperature gradient threshold.

Dual thermal control element configuration for opto-mechanical assembly

An opto-mechanical assembly includes a first thermal control element disposed on a region of a first section of an enclosure; a second thermal control element disposed on a region of a second section of the enclosure; and an optical element that includes a first portion and a second portion. The first thermal control element is configured to heat the first portion of the optical element and to cause the first portion of the optical element to be associated with a first temperature, and the second thermal control element is configured to heat the second portion of the optical element and to cause the second portion of the optical element to be associated with a second temperature. This causes a difference between the first temperature and the second temperature to satisfy a temperature difference threshold. Accordingly, this also causes a temperature gradient along an axis of the optical element to satisfy a temperature gradient threshold.