Abstract: A cover lens for a linear luminaire is disclosed. The cover lens has a body with a refractive portion and cover-engaging structure. The body has an inner surface with a plurality of facets, and an outer surface that is either continuously curved or splined. Each of the plurality of facets has a facet angle and a facet length. The plurality of facets are physically asymmetrical so as to cause or allow an asymmetrical refraction of light that is emitted toward their inner surfaces. The body of the cover lens has a constant cross section over its length. A linear luminaire using such a cover lens is also disclosed.

Abstract: Channels and channel covers for linear lighting are disclosed. The channels have an upper compartment for linear lighting and a lower compartment that may be used as a raceway, to engage parts, and for rear entry of wires. Endcaps for the channels may engage the lower compartment. Cover-lenses for linear lighting channels are also disclosed. The cover-lenses may include diffusing material and implement a thickness gradient in order to maximize the amount of diffusing material where the emitted light intensity is expected to be greatest. Diverging Fresnel features may be superimposed on the thickness gradient in order to counteract any converging effect of the thickness gradient and cause emitted light to spread more evenly.

Abstract: Channels and channel covers for linear lighting are disclosed. The channels have an upper compartment for linear lighting and a lower compartment that may be used as a raceway, to engage parts, and for rear entry of wires. Endcaps for the channels may engage the lower compartment. Cover-lenses for linear lighting channels are also disclosed. The cover-lenses may include diffusing material and implement a thickness gradient in order to maximize the amount of diffusing material where the emitted light intensity is expected to be greatest. Diverging Fresnel features may be superimposed on the thickness gradient in order to counteract any converging effect of the thickness gradient and cause emitted light to spread more evenly.

Abstract: Optical systems for linear lighting, particularly linear lighting that is installed in a channel, are disclosed, as are light fixtures that use these optical systems. The optical systems have multiple lenses, usually a first lens adapted to be positioned close to a strip of linear lighting installed in a channel, and a second lens adapted to be positioned farther from the strip of linear lighting. The two lenses are optically aligned with one another such that light from the first lens reaches the second lens. The two lenses may, e.g., form an Abbe condenser lens system. In some embodiments, diffusing features may be integrated into one or both lenses to effect light mixing. The multiple lenses may be adapted to physically support one another, and to engage with structure provided by the channel for securing a cover.

Abstract: Optical systems for linear lighting, particularly linear lighting that is installed in a channel, are disclosed, as are light fixtures that use these optical systems. The optical systems have multiple optical elements, usually a first lens adapted to be positioned close to a strip of linear lighting installed in a channel, and a second lens adapted to be positioned farther from the strip of linear lighting. In some cases, the first optical element may be a diffuser. The two optical elements are optically aligned with one another such that light from the first optical element reaches the second optical element. The multiple optical elements may be adapted to physically support one another, and to engage with structure provided by the channel for securing a cover. Some optical systems may be adapted to compensate for variations in the color or intensity of the emitted light.

Abstract: Optical systems for linear lighting, particularly linear lighting that is installed in a channel, are disclosed, as are light fixtures that use these optical systems. The optical systems have multiple optical elements, usually a first lens adapted to be positioned close to a strip of linear lighting installed in a channel, and a second lens adapted to be positioned farther from the strip of linear lighting. In some cases, the first optical element may be a diffuser. The two optical elements are optically aligned with one another such that light from the first optical element reaches the second optical element. The multiple optical elements may be adapted to physically support one another, and to engage with structure provided by the channel for securing a cover. Some optical systems may be adapted to compensate for variations in the color or intensity of the emitted light.

Abstract: Optical systems for linear lighting, particularly linear lighting that is installed in a channel, are disclosed, as are light fixtures that use these optical systems. The optical systems have multiple lenses, usually a first lens adapted to be positioned close to a strip of linear lighting installed in a channel, and a second lens adapted to be positioned farther from the strip of linear lighting. The two lenses are optically aligned with one another such that light from the first lens reaches the second lens. The two lenses may, e.g., form an Abbe condenser lens system. In some embodiments, diffusing features may be integrated into one or both lenses to effect light mixing. The multiple lenses may be adapted to physically support one another, and to engage with structure provided by the channel for securing a cover.

Abstract: Optical systems for linear lighting, particularly linear lighting that is installed in a channel, are disclosed, as are light fixtures that use these optical systems. The optical systems have multiple lenses, usually a first lens adapted to be positioned close to a strip of linear lighting installed in a channel, and a second lens adapted to be positioned farther from the strip of linear lighting. The two lenses are optically aligned with one another such that light from the first lens reaches the second lens. The two lenses may, e.g., form an Abbe condenser lens system. In some embodiments, diffusing features may be integrated into one or both lenses to effect light mixing. The multiple lenses may be adapted to physically support one another, and to engage with structure provided by the channel for securing a cover.

Abstract: Optical systems for linear lighting, particularly linear lighting that is installed in a channel, are disclosed, as are light fixtures that use these optical systems. The optical systems have multiple optical elements, usually a first lens adapted to be positioned close to a strip of linear lighting installed in a channel, and a second lens adapted to be positioned farther from the strip of linear lighting. In some cases, the first optical element may be a diffuser. The two optical elements are optically aligned with one another such that light from the first optical element reaches the second optical element. The multiple optical elements may be adapted to physically support one another, and to engage with structure provided by the channel for securing a cover. Some optical systems may be adapted to compensate for variations in the color or intensity of the emitted light.

Abstract: A liner for use with a breast pump has an outer flange portion and a longitudinal portion extending outward from the outer flange portion. The outer flange portion has a first noncircular opening therein for receiving at least a portion of a breast including a nipple. The longitudinal portion has a second opening and a tubular passageway between the first noncircular opening and the second opening for allowing milk expressed from the breast received in the liner to pass through the liner. The outer flange portion is generally planar and adapted to engage a portion of the breast surrounding the nipple during use of the breast cup. The liner is configured for movement between an opened configuration of the noncircular opening and a collapsed configuration of the noncircular opening.

Abstract: Programmable light assemblies that may function in various operating modes, such as to function as marker lights and/or emergency lights, or have other functions, are disclosed. The protocol and architecture of the light assemblies enables the associated light fixtures to provide a constant current output despite the presence of substantially large voltage ranges, and even when submerged in water. Alternative embodiments of the programmable light assemblies of the invention provide many other features as described herein.

Abstract: A nipple for use with a nursing bottle is provided. The nipple includes a base portion and a bulbous sidewall connected to and extending upward from the base portion. The bulbous sidewall has a height and a maximum width that is larger than said height. The nipple further includes an end portion extending upward from the bulbous sidewall and having an outlet opening therein.

Abstract: A breast pump has at least one collection assembly for engaging at least a portion of a breast surrounding a nipple and a vacuum pump for applying a vacuum to the collection assembly and thereby to at least the nipple of the breast. A controller is operable to cyclically operate the vacuum pump between a maximum vacuum pressure in the range of about 70 mm Hg to about 150 mm Hg and a latching pressure of about 30 mm Hg.

Abstract: A nipple for a bottle assembly includes a flow control valve configured to open when subjected to a first vacuum pressure and to close when subjected to a second vacuum pressure that is substantially the same as or less than the first vacuum pressure. The flow control valve is configured to maintain the flow rate through the nipple between approximately 7 milliliters per minute and approximately 15 milliliters per minute.

Abstract: A breast cup assembly for a breast pump has a generally funnel-shaped support member with an open wide end, an open narrow end, a tapered central passage extending between the wide end and the narrow end. A liner is positioned at least in part in the support member. The liner has a first noncircular opening therein for receiving at least a portion of a breast including a nipple, a second opening spaced from the first noncircular opening, and a tubular passageway between the first noncircular opening and the second opening for allowing milk expressed from the breast received in the liner to pass through the liner. The liner is configured for movement between an opened configuration of the noncircular opening and a collapsed configuration of the noncircular opening.

Abstract: A breast cup assembly for a breast pump has a generally funnel-shaped support member with an open wide end, an open narrow end, a tapered central passage extending between the wide end and the narrow end. A liner is positioned at least in part in the support member. The liner has a first noncircular opening therein for receiving at least a portion of a breast including a nipple, a second opening spaced from the first noncircular opening, and a tubular passageway between the first noncircular opening and the second opening for allowing milk expressed from the breast received in the liner to pass through the liner. The liner is configured for movement between an opened configuration of the noncircular opening and a collapsed configuration of the noncircular opening.

Abstract: A breast pump has at least one collection assembly for engaging at least a portion of a breast surrounding a nipple and a vacuum pump for applying a vacuum to the collection assembly and thereby to at least the nipple of the breast. A controller is operable to cyclically operate the vacuum pump between a maximum vacuum pressure in the range of about 70 mm Hg to about 150 mm Hg and a latching pressure of about 30 mm Hg.

Abstract: A liner for use with a breast pump has an outer flange portion and a longitudinal portion extending outward from the outer flange portion. The outer flange portion has a first noncircular opening therein for receiving at least a portion of a breast including a nipple. The longitudinal portion has a second opening and a tubular passageway between the first noncircular opening and the second opening for allowing milk expressed from the breast received in the liner to pass through the liner. The outer flange portion is generally planar and adapted to engage a portion of the breast surrounding the nipple during use of the breast cup. The liner is configured for movement between an opened configuration of the noncircular opening and a collapsed configuration of the noncircular opening.