Colorimeter

Optics: measuring and testing – By shade or color

Patent

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Details

D10 81, 356414, G01J 351

Patent

active

050838687

ABSTRACT:
An improved portable colorimeter is described in which there is a cap member detachably secured to a housing. The cap member can be placed in one position for enclosing the cell compartment for protection of the colorimeter during transport and storage. The cap can be placed in a second position over the cell compartment for preventing ambient light from entering the cell compartment during testing. In one embodiment the cap member rests in grooves adjacent the cell compartment during testing.

REFERENCES:
patent: 696371 (1902-03-01), Grace
patent: 1495763 (1924-05-01), Simpson et al.
patent: 2341810 (1944-02-01), Peet
patent: 4304490 (1981-12-01), Murakoshi et al.
patent: 5013155 (1991-05-01), Rybak
Beckman Instruments, "Beckman Beam Condenser for IR-4200", Scientific Instruments Division, 10/76.

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