IRI Infrared Slide Rule

This is a 160x90 mm plastic slide rule used to calculate black-body radiation characteristics.

High Resolution Scans

These are completely unretouched scans from a Canon LiDE 600F flatbed scanner.
The images will need to be adjusted for contrast and size to suit varying needs.
To provide the greatest scope for this they have been stored as TIFFs.
Most image manipulation programs will open these files. The Gimp is highly recommended.

Image Image Type Size Format Compression
Cover (Front) 800dpi Colour 19Mb TIFF, little-endian LZW, 16k strip, no horz diff
Cover (Back) 800dpi Colour 19Mb TIFF, little-endian LZW, 16k strip, no horz diff
Slide (Front) 1200dpi Greyscale 13Mb TIFF, little-endian LZW, 8k strip, no horz diff
Slide (Back) 1200dpi Greyscale 14Mb TIFF, little-endian LZW, 8k strip, no horz diff
Instructions (Front) 800dpi Colour 21Mb TIFF, little-endian LZW, 16k strip, no horz diff
Instructions (Back) 800dpi Colour 21Mb TIFF, little-endian LZW, 16k strip, no horz diff

Note that the ink bleeding around the characters on the slide is a true artifact of the printing and not some weird scanning effect.