Abstract: A head-mounted display may include a display system and an optical system in a housing. The display system may have displays that produce images. Positioners may be used to move the displays relative to the eye positions of a user's eyes. An adjustable optical system may include tunable lenses such as tunable cylindrical liquid crystal lenses. The displays may be viewed through the lenses when the user's eyes are at the eye positions. A sensor may be incorporated into the head-mounted display to measure refractive errors in the user's eyes. The sensor may include waveguides and volume holograms, and a camera for gathering light that has reflected from the retinas of the user's eyes. Viewing comfort may be enhanced by adjusting display positions relative to the eye positions and/or by adjusting lens settings based on the content being presented on the display and/or measured refractive errors.

Abstract: A torso-shape controlling, lower back supporting garment comprising a garment having control fabric panel portions adapted to extend in waist shape controlling relation to torso front, back and sides; the control fabric panel portions include zones positioned to provide rigidity at the torso front and back and to yieldably resiliently stretch generally horizontally at the torso sides, whereby support is provided at the lower back, and an hourglass torso shape at the waist is produced. Convexly curved stays are located to transfer tensioning loading to at least two of the generally rigid zones of the panel portions.

Abstract: A women's garment includes(a) a bodice having a soft fabric front portion to conform to the bust of the wearer,(b) an elastic band spaced inwardly from the bodice and located in a loop shaped path adapted to extend about the body of the wearer so as to tension the band,(c) and a fabric panel attached to the bodice above the level of the band and suspending the band to extend crosswise of said bodice soft fabric front portion so that when tensioned the band will anchor a front panel portion of the fabric panel beneath and in supporting relation to the bust of the wearer.