The site uses five photographic subjects. Cropping and responsive delivery are handled with HTML and CSS plus locally generated WebP sizes. Alternative text describes the visible subject.
Projection in a room
- outdoor-800.webp / outdoor-1600.webp: night-time projection beside a pool. Photographer: AWOL Vision Projector. Source: Unsplash photo IpzdKYOXD0s;
- hero-800.webp / hero-1600.webp: a group watching a large sports projection. Photographer: AWOL Vision Projector. Source: Unsplash photo D8VqYGSy85I.
Further photographs
- optics-800.webp / optics-1600.webp: projector with visible light. Photographer: James Thompson. Source: Unsplash photo QmdQ6zYQ028;
- ambience-800.webp / ambience-1600.webp: saturated light installation. Photographer: Creedi Zhong. Source: Unsplash photo cPDYIQ6l65A;
- projector-800.webp / projector-1600.webp: historic projection equipment. Photographer: Ruslan Zaplatin. Source: Unsplash photo BrRNyd9ULlo.
The files were obtained from the listed photo pages on 13 July 2026. The governing terms are the Unsplash License.
Editorial diagrams
Three further SVG diagrams are embedded in article HTML and explain UST geometry, room planning and signal routing. Their labels are localised in German and English.
Technical delivery
The WebP files reside in assets/images, use no script or cookie and make no third-party request. Alternative text communicates the subject when a photograph cannot be perceived.