X-ray Regno Nikkor
X-ray Regno Nikkor Lenses Regno-Nikkor 5cm f/1.5
Regno-Nikkor 5cm f/1.5 1944 Regno-Nikkor 5cm f/1.5
A lens for indirect radiography. There are two radiography methods: detect and indirect.
With indirect radiography, a radiographic image is formed on a fluorescent plate,
and then captured using a radiographic camera,
Indirect radiography was commonly used for examinations of large numbers of people,
because radiographic cameras were easy to use and utilized film rolls that enabled serial radiography.
Regno-Nikkor 5cm f/1.5 1944
Regno-Nikkor 5cm f/1.5 1944
Regno-Nikkor 5cm f/1.5 Nr. 14061 1944 6cm f/0.85
6cm f/0.85 1937 6cm f/0.85
A 16mm cinema camera lens for radiography
that was developed in response to a request from medical institutes.
It is a large aperture ratio lens with an f-number of 0.85.
6cm f/0.85 1937
6cm f/0.85 1937 This lens is described in pages 531-532 of the 40-year history of Nippon Kogaku. X Ray Lens 6 cm F/0.85 This lens was developed in response to an order from the Medical Department of Yokosuka Naval Air Technical Arsenal in 1937 as a 16mm movie camera for X-rays. One of the products was loaned to Nagoya Medical University and others. It became popular as a high speed lens and unusual lens.
6cm f/0.85 Lens Construction
6cm f/0.85 1937
6cm f/0.85 1937
6cm f/0.85 Nr. 2 1937
6cm f/0.85 1937 Nikkor 3.5cm f/3.5
Nikkor 3.5cm f/3.5 1937 Nikkor 3.5cm f/3.5
A lens developed for 35mm format cameras
that employed the Canon lens mount of that time.
It was used in a device for recording numbers of telephone calls.
Nikkor 3.5cm f/3.5 1937
Nikkor 3.5cm f/3.5 1937
Nikkor 3.5cm f/3.5 Nr. 354 1937 Regno-Nikkor 10cm f/1.5
Regno-Nikkor 10cm f/1.5 1947 Regno-Nikkor 10cm f/1.5
A lens for indirect radiography.
In group medical examinations, 35mm film was used for chest radiography,
but the resulting images were too small for accurate diagnosis,
so a medium-format (6x6) camera was developed,
with a dedicated holder for sheet film as well as film roll.
An indirect radiography camera system using this lens was also developed.
Regno-Nikkor 10cm f/1.5 1947
Regno-Nikkor 10cm f/1.5 1947
Regno-Nikkor 10cm f/1.5 1947
Regno-Nikkor 10cm f/1.5 1947 Spectrometer
Spectrometer 1936 Spectrometer
This spectrometer precisely measured prism angles
as well as the refraction index of optical glass.
Spectrometer 1936 Next Page Articles → Next Chapter 4 Measuring Instruments, Binoculars Shortcuts Here
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