Microscope lens in a laboratory
Microscope lens
Galactic centre, gamma ray image
Light microscope in laboratory
Light beams in a refracting telescope
Lens curvature testing
Binoculars in Hand
Germany, Freiburg im Breisgau, Slide under microscope, close-up
Microscope in laboratory
Spectrum of light experiment, 1889
Diffraction experiment, simulation
Prism refracting visible light
Illustration Technique, Microscope,
Photonics laboratory
Sir David Brewster, Scottish physicist
Optics of camera with no lens
Ray of light striking prism at angle
医療
Etched columnar grain structure
Optics experiment
Lens holder on an optical bench
Amateur astronomical telescope
双眼鏡と手
Light microscope
Binoculars under x-ray
Coin operated binoculars in New York City
産業・化学
Multipipette in a laboratory
Boy looking at the sky through a pair of binoculars
Digital colorimeter
Firework explosion, shadowgraph
Laser experiment
Laser research
Poisson's spot
Harmonic wave scattering, simulation
Laser Megajoule laser beam simulation
Explosion, shadowgraph
Research laser
Glass prism and laser
Gemini South Telescope, interior panoramic view
SOAR and Gemini South telescopes, Chile
SOAR Telescope interior, Chile
Inside the SMARTS 1.5m telescope dome
Binoculars
Dark Sector Lab telescopes, South Pole
Microscope and test tubes in a laboratory
Laboratory microscope
Testing a scanning optical microscope
Effects of sunlight on plant growth
Effects of lack of sunlight on plant
Total solar eclipse of 2 July 2019, seen from La Silla
Microscope
Coin operated telescope
Tesla's Wardenclyffe Tower laboratory, 1900s
Digital colorimeters with cuvettes
Glass flasks in a laboratory
Refraction demonstration, 1893
Receiving screen on an optical bench
ANLAB colour space
Supernova remnant Cassiopeia A
Nicholas U Mayall Telescope during a total lunar eclipse
Kitt Peak National Observatory during a lunar eclipse
Extreme close-up of tourist sight-seeing camera
Light microscope eye piece
Set of scales with a bowl of water
Diffraction
Continuous spectrum caused by white light
Electrical circuit with ammeter
Spring in clamp pulled by weight
望遠鏡
Quasar observations, Chandra X-ray Observatory
Magnifying glass on black background.
Viewfinder on tower, close-up
Total internal reflection of a laser beam
Dye in tank of heated water
Magnetic field
Thermal convection experiment
Dish containing iron filings
Microscope slide on microscope
Test tubes in a tube rack
Three tubes in a tube rack
Light dispersion experiment
Laser light beam reflected in mirror
Flasks with dyes in a laboratory
Supernova 1987a remnant, artwork
Microscope in a laboratory
Replica of Newton's reflecting telescope
Galileo Galilei, Italian astronomer
Solar observatory
Extreme close-up of dial on tourist sight-seeing camera
オペラグラス
双眼鏡
Binocular on white background
Brass folding binoculars
Digital colorimeter with cuvettes
Coathanger asterism in Vulpecula
IC 4665 star cluster in Ophiuchus
Optics of a camera with a lens
Pipetting
Laboratory testing
地図と双眼鏡
木漏れ日に双眼鏡
Illustration Technique, Astronomy Telescope, Telescope,
Observatory telescope
Small Magellanic Cloud
Overall view of COAST telescope system, Cambridge
Jones Emberson 1 planetary nebula
Spiral galaxy IC 1936
HESS gamma ray telescope, Namibia
Jellyfish nebula
Reflection nebulae VdB 14 & 15
Globular star cluster M22
Open star cluster NGC 457, optical image
Alnilam star (Epsilon Orionis)
Planetary nebula PK164
Maffei I and II galaxies
Spiral galaxy NGC 2403, optical image