1) Prism spectroscope 2) Spectroscope 1) Spectrogram 
A spectrograph is an instrument that separates light into a frequency spectrum and records the signal using a camera. There are several kinds of machines referred to as spectrographs, depending on the precise nature of the waves. The term was first used in 1884. ==Stellar & solar spectrograph== The first spectrographs used photographic paper as th...
instrument for viewing a spectrum
• (n.) An apparatus for photographing or mapping a spectrum. • (n.) A photograph or picture of a spectrum.
(from the article `telescope`) Newton noted the interesting way in which a piece of glass can break up light into different bands of colour, but it was not until 1814 that the ... Spectrography records the composition of light emitted by stars and other objects, the star image of the telescope being photographed through a ... ...to w...
An instrument that disperses (breaks apart) light into a spectrum so that the intensity at different wavelengths can be measured by a detector. It consists of a slit for isolating the light from a particular object in the telescope`s field of view, a collimator for directing this light into a p...
an apparatus for determining spectra: the spectrograph provides a permanent record
An instrument used in spectography. ... (05 Mar 2000) ... 
Device used to observe and record spectral changes.
Spec'tro·graph noun [ Spectrum + graph .] (Physics) (a) An apparatus for photographing or mapping a spectrum. (b) A photograph or picture of a spectrum. -- Spec`tro*graph'ic adjective -- Spec`tro*graph'ic*al*ly 
Type: Term Pronunciation: spek′trō-graf Definitions: 1. An instrument used to display or record spectra, as from electromagnetic or sound waves.
[n] - a spectroscope by which spectra can be photographed
An instrument that spreads light or other electromagnetic radiation into its component wavelengths (spectrum), recording the results photographically or electronically.
noun a spectroscope by which spectra can be photographed