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Spectrometers with Polarizing Attachment and Camera Attachment
- 1911
Top figure is a laboratory spectrometer with a polarizing attachment. Lower figure is a spectrometer with a third arm and camera attachment.
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Ives Duplex Diffraction Spectroscope
- 1911
"This spectroscope will show the first order of spectrum all at once across the field of the eyepiece."
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Heliostats
- 1911
Top figure is a Foucault heliostat, which reflects the rays of the sun in a horizontal direction. Bottom figure is a two-mirror heliostat, where the second mirror allows the path of the light beam to be thrown in any…
- Creator Of Work Wm. Gaertner & Company
- Subject Scientific apparatus and instruments, Heliostat, Laboratories--Equipment and supplies, Measuring instruments
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Littrow Spectroscope
- 1911
"The collimators and observing telescopes have apertures of 50mm., and focus by rack and pinion. Two 60 degree prisms of heavy flint glass and of 70mm. side are furnished with the instrument. The mirror may be used in…
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Small Comparator
- 1911
An "instrument intended for measuring spectra photographs, gratings, divided scales, or such objects which can be focused by the microscope and will allow rapid measurements of the highest possible accuracy." The design…