Design of a Compact Camera Obscura

Autor/inn/en	Sánchez, María Jesús; Gil, Julia; Manuel Vaquero, José
Titel	Design of a Compact Camera Obscura
Quelle	In: Physics Teacher, 60 (2022) 4, S.282-283 (2 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Gil, Julia) ORCID (Manuel Vaquero, José)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0031-921X
Schlagwörter	Optics; Light; Photography; Design; Astronomy; Measurement + Suchen Sie Ihr Suchwort? Optik; Licht; Fotografie; Astronomie; Messverfahren
Abstract	The camera obscura is a well-known optical device in the form of a closed box with a hole in one of its walls through which light rays pass, forming an inverted image of the external objects on the opposite wall, as can be seen in Fig. 1(a). Despite the simplicity of its basic design, they have been widely used by scientists and artists. In particular, dark cameras have been used throughout history to measure Earth-Sun distance. To do this, ancient scientists used cameras of enormous dimensions to accurately measure the variations in the apparent diameter of the Sun that depend on the Earth-Sun distance. This is because the farther the light travels inside the camera, the larger the projected image will be [Fig. 1(b)]. In this work, the construction of a compact dark camera for educational purposes is presented so that, having reduced dimensions, it allows the images to be very large. (As Provided).
Anmerkungen	American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; e-mail: pubs@aapt.org; Web site: http://aapt.scitation.org/journal/pte
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2022/4/11