S

• Spectrometers (64 P)
• Surveying instruments (53 P)

• Optical instrument

A

• Autocollimator

C

• Cast Glance
• Cathetometer
• Cheiroscope
• Coherence scanning interferometry
• Colorimeter (chemistry)

D

• Dipleidoscope
• Disappearing-filament pyrometer
• Dynameter

E

• Erygmascope

G

• Glossmeter

H

• Haze meter
• Hilger & Watts
• Hydroscope

I

• Interferometry

L

• Level (optical instrument)
• List of viewing instruments
• Lovibond comparator

M

• Mirror galvanometer

N

• N-slit interferometer

O

• Optical correlator
• Optical power meter

P

• Perspective machine
• Phase Shift Interferometry
• Photometer
• Polarimeter
• Post Instrument
• Pseudoscope
• Pyramid wavefront sensor

R

• Reynolds and Branson
• Rhinoscope

S

• Slit lamp
• Spherometer
• Stauroscope
• Stereoautograph

T

• Theodolite
• Tiny Ionospheric Photometer
• Total station

U

• Upside down goggles

W

• W. Watson and Son
• Wavefront curvature sensor
• Wavefront sensor