Abstract: A method of measuring aberrations in a null-lens including assembly and alignment aberrations. The null-lens may be used for measuring aberrations in an aspheric optic with the null-lens. Light propagates from the aspheric optic location through the null-lens, while sweeping a detector through the null-lens focal plane. Image data being is collected at locations about said focal plane. Light is simulated propagating to the collection locations for each collected image. Null-lens aberrations may extracted, e.g., applying image-based wavefront-sensing to collected images and simulation results. The null-lens aberrations improve accuracy in measuring aspheric optic aberrations.

Abstract: A sink may include a basin and a faucet assembly foldably mounted relative to the basin. The faucet assembly is rotatable between an upright position wherein the faucet assembly protrudes out from the basin and a folded position wherein the faucet assembly is received within the basin.

Abstract: A sink may include a basin and a faucet assembly foldably mounted relative to the basin. The faucet assembly is rotatable between an upright position wherein the faucet assembly protrudes out from the basin and a folded position wherein the faucet assembly is received within the basin.

Abstract: A sink assembly may include a sink housing including a conduit rack and a receptacle for a sink with such a foldable faucet assembly. The sink assembly may further include one or more slidable table portions or a pivotable lid for covering the sink when the faucet assembly is in the folded position. A serving cart, a gardening cart and a barbecue station, each including a sink with a foldable faucet assembly and a slidable table portion or pivotable lid for covering the sink when the faucet assembly is in the folded position.

Abstract: A sink comprising a basin and a faucet assembly foldably mounted relative to the basin. The faucet assembly is rotatable between an upright position wherein the faucet assembly protrudes out from the basin and a folded position wherein the faucet assembly is received within the basin. Another embodiment comprises a sink assembly including a sink housing including a conduit rack and a receptacle for a sink with such a foldable faucet assembly. The sink assembly may further include one or more slidable table portions or a pivotable lid for covering the sink when the faucet assembly is in the folded position. A serving cart, a gardening cart and a barbecue station, each including a sink with a foldable faucet assembly and a slidable table portion or pivotable lid for covering the sink when the faucet assembly is in the folded position.

Abstract: A sink comprising a basin and a faucet assembly foldably mounted relative to the basin. The faucet assembly is rotatable between an upright position wherein the faucet assembly protrudes out from the basin and a folded position wherein the faucet assembly is received within the basin. Another embodiment comprises a sink assembly including a sink housing including a conduit rack and a receptacle for a sink with such a foldable faucet assembly. The sink assembly may further include one or more slidable table portions or a pivotable lid for covering the sink when the faucet assembly is in the folded position. A serving cart, a gardening cart and a barbecue station, each including a sink with a foldable faucet assembly and a slidable table portion or pivotable lid for covering the sink when the faucet assembly is in the folded position.

Abstract: A multi-postion chair. The chair includes a base that has a seat and a seatback attached thereto. The seatback may be reclined relative to the base in a plurality of positions. An arcuate foot rest is pivotally attached to the base such that it may be pivoted under the base to enable the chair to be rocked thereon. In the alternative, the footrest may be extended relative to the base to provide a footrest for the occupant. A storage well may be provided in the base and the seat may be pivotally attached to the base such that it overlies the storage well. The chair may have pivotable armrests attached to the base and an adjustable headrest attached to the seatback.

Abstract: An accessory chair apparatus for use with video games, the apparatus comprising a concave base, a seat portion, and a console. The base is shaped so as to facilitate a rocking motion in both a front to back and a side to side direction. However, body stabilizers may also to deployed as to prevent such rocking. The seat portion may include a back portion upon which a headrest may be adjustably mounted. The headrest may include at least one audio speaker mounted therein to enhance the game playing experience. The console is adjustably mounted on the front end of the base so as to ensure comfortable seating for occupants of various sizes. Also, a controller mounted frame may be placed on the console so as to accept a game controller, such as, for example, a steering wheel. The apparatus may also include a variety of storage compartments such as a basket, a case, and recesses in the body and the case.

Abstract: A foldable play structure is disclosed which includes a first wall unit, a second wall unit, and a first axially latchable hinge. The first hinge includes a first leaf attached to the first wall unit, a second leaf attached to the second wall unit, and a first pintle extending through the first and second leaves along a first axis. The first and second leaves are slidable relative to each other along the first axis between a pivotable position, wherein the first and second leaves may pivot relative to each other about the first axis, and a latched position, wherein pivotal movement of the first and second leaves about the first axis is restrained.

Abstract: A foldable soccer and hockey goal and equipment set is disclosed wherein the goal and the equipment can be conveniently transported and stored in one lightweight and self-contained unit. The goal comprises an inclined net holder having a net attached thereto and being supported by first and second approximately right-triangular upright support members which are hingedly attached to the inclined net holder. The support members are made to be hollow and are provided with filler holes to allow filling with a ballasting material, such as sand or water, to provide stability to the goal when in use. In a closed position, hockey sticks can be placed through rungs situated on each support member to maintain the support members in a folded position and to retain a soccer and hockey ball therein.