Zone du titre et de la mention de responsabilité
Titre propre
Philips LDK 3 Colour TV studio camera
Dénomination générale des documents
- Objet
Titre parallèle
Compléments du titre
Mentions de responsabilité du titre
Notes du titre
Niveau de description
Dossier
Cote
RG 102.71
Zone de l'édition
Mention d'édition
Mentions de responsabilité relatives à l'édition
Zone des précisions relatives à la catégorie de documents
Mention d'échelle (cartographique)
Mention de projection (cartographique)
Mention des coordonnées (cartographiques)
Mention d'échelle (architecturale)
Juridiction responsable et dénomination (philatélique)
Zone des dates de production
Date(s)
-
1968 - 1991 (Production)
Zone de description matérielle
Description matérielle
1 TV camera on pedestal
Zone de la collection
Titre propre de la collection
Titres parallèles de la collection
Compléments du titre de la collection
Mention de responsabilité relative à la collection
Numérotation à l'intérieur de la collection
Note sur la collection
Zone de la description archivistique
Historique de la conservation
Portée et contenu
The Phillips LDK 3 Colour TV camera was one of two purchased by TMU (formerly Ryerson) in 1968 as the first colour camera on campus. They were installed in the RTA Studio B television studio located in Kerr Hall East.
Zone des notes
État de conservation
Source immédiate d'acquisition
In 1991 this camera was decommissioned along with the Ampex VR-1200 Series videotape recorder when the new Rogers Communication Centre opened that same year and donated to the university Archives.
Classement
Langue des documents
Écriture des documents
Localisation des originaux
Disponibilité d'autres formats
Restrictions d'accès
Open. Records are available for consultation without restriction.
Délais d'utilisation, de reproduction et de publication
Instruments de recherche
Éléments associés
Accroissements
Note générale
This colour television studio camera was one of two Phillips colour TV cameras on campus, and as mentioned, purchased in 1968. The cameras were located in the RTA television colour Studio B in Kerr Hall East, Room 225, which was converted to a regular classroom in 1991 when RTA moved to the then newly built Rogers Communication Centre. At that time, the cameras were decommissioned and Camera 1 was donated to Ryerson Archives.
The Phillips LDK 3 was sold around the world. In the U.S. and Canada, its major competitor was RCA. The built-in zoom lens on the front came from Angenieux of France and cost $40,000 back in 1966.
This camera had three plumbicon tubes (from the Latin word plumbum meaning lead) using lead compounds to turn light into electricity. The name was used to separate this European tube from the more common image orthicon camera tube which had been used for two decades in black and white television and continued on into the colour age.
To capture colour, the incoming colour image was interpreted by prisms (dichroic mirrors) which separated the image into red, green, and blue. The three plumbicon tubes received the red, green, and blue subdivisions of the image and scanned them to make an electronic version of the image. The three signals could be recorded and/or broadcast to television sets which reversed the process, illuminating the red, green, and blue phosphors on the TV screen, varying the intensity to create the colour image. This occurred 30 times a second to give the illusion of movement.