Quartz-iodine Lamp Research Articles

Mirror Cinematography in the Operating Room

A method is described whereby deep surgical repairs can be photographed as though the camera were immediately above the incision, when in fact it is to one side and out of the way. The method employs a reflex motion-picture camera equipped with a long focal length lens (90 mm) in front of which is a front surfaced mirror mounted on a lightweight frame extending approximately two feet in front of the camera lens; immediately behind and below the mirror is a quartz-iodine lamp with a colour temperature of 3200 K. To ensure correct reorientation after the film has been made, it is essential that during photography, the camera be placed north, south, east, or west of the patient and never at any point in between.

Modification of spectrum of tungsten filament quartz-iodine lamps due to iodine vapour: F. J. Studer and R. F. van Beers, J. Opt. Soc. Amer., 54 (7), July 1964, 945–948.

Modification of spectrum of tungsten filament quartz-iodine lamps due to iodine vapour: F. J. Studer and R. F. van Beers, J. Opt. Soc. Amer., 54 (7), July 1964, 945–948.

Modification of Spectrum of Tungsten Filament Quartz–Iodine Lamps due to Iodine Vapor

The iodine atmosphere in typical quartz–iodine lamps modifies the spectrum of the emitted light by selective absorption in a broad band in the green-yellow region. Results of a study of the spectral emission of a series of quartz–iodine lamps with different amounts of iodine are given.

A New Standard of Spectral Irradiance

The National Bureau of Standards has made available a new standard of spectral irradiance in the form of a 200-W quartz-iodine lamp with a coiled-coil tungsten filament operating at about 3000°K and calibrated over the spectral range of 0.25 to 2.6 μ. The calibration of this standard is based upon the radiance of a blackbody as defined by the Planck law of radiation, since it was done by comparisons with the NBS standards of spectral radiance, of luminous intensity, and of total irradiance, each of which was established through the use of blackbodies. This standard is used without auxiliary optics. Because of its small physical size and high operating temperature, relatively high spectral irradiances may be obtained through its use.

Quartz Iodine Lamps and Reflectors for Set Lighting

Quartz Iodine Lamps and Reflectors for Set Lighting