involving prisms or mirrors

Introduced: September 1968

Last revised: January 2006

Full Title

Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices > involving prisms or mirrors

Classification Context

Section:: PHYSICS
Class:: OPTICS
Subclass:: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

4 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

G02B 23/04 for the purpose of beam splitting or combining, e.g. fitted with eyepieces for more than one observer
G02B 23/06 having a focusing action, e.g. parabolic mirror
G02B 23/08 Periscopes
G02B 23/1 reflecting into the field of view additional indications, e.g. from collimator