Visual Screen Fotografias De Arquivo

(12 imagens)
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A consultant irrigates the lens with water to free the nucleus at the centre from the soft lens matter during surgery in a hospital theatre. He is operating to remove a cataract. This image may only be used to portray the subject in a positive manner
Creative (RM)
#135624158
Oxford Scientific
Diffraction of a Helium-Neon laser beam on a small round aperture causing a classic case of Fresnel diffraction on an aperture (diaphragm, pinhole). A round aperture is placed in the path of a Gaussian beam emitted by a Helium-Neon laser. The resulting dif
Creative (RM)
#128636152
Photo Researchers
Blurred eye chart
Creative (RF)
#78457634
Comstock Images
Interference between two HeNe laser beams. A Helium-Neon laser beam is split into two beams which are then crossed at a very small angle. A screen is placed perpendicular to the beams propagation direction, in the region where the beams intersect. Because
Creative (RM)
#128636113
Photo Researchers
A light-emitting diode (LED) is based on a forward-biased heterojunction and emits narrow-band radiation whose wavelength is determined by the bandgap of the semiconductor material. Recently-developed white LEDs are typically based on blue LEDs (InGaN, ind
Creative (RM)
#128631952
Photo Researchers
Diffraction of a Helium-Neon laser beam, producing a classic case of Fresnel diffraction on an edge (also called half-infinite screen, razor blade, knife edge). A portion of a Helium-Neon laser beam is blocked and the resulting diffraction pattern is obser
Creative (RM)
#128631840
Photo Researchers
Newton Rings is an interference pattern between a spherical and a plane wavefronts. Such wavefronts can be obtained in practice by reflecting a collimated beam from nearby spherical and plane surfaces. When observed in monochromatic light, the pattern is a
Creative (RM)
#128624552
Photo Researchers
A Tektronix modern digital oscilloscope, which measures the output, a periodic pulse sequence, generated by an industrial mode-locked laser. Such a laser produces ultrashort pulses spaced in time at equal intervals. The response time of the semiconductor d
Creative (RM)
#128611312
Photo Researchers
Photo of green laser beam hitting a screen
Creative (RM)
#128596833
Photo Researchers
Photo of a semiconductor diode laser (635 nm) beam hitting a screen.
Creative (RM)
#128596832
Photo Researchers
A modern optical spectrum analyzer is used as a diagnostic tool in fiber optics. An optical spectrum analyzer is a precision instrument that measures optical power as a function of wavelength. It is widely used as a powerful diagnostic tool in fiber optics
Creative (RM)
#128585248
Photo Researchers
A setup demonstrating a classic case of Fresnel diffraction on a circular aperture. Here of a diode laser beam (635 nm) is incident on a small aperture (diaphragm, pinhole) of 35 micron diameter. The resulting diffraction pattern (called Airy disk) is obse
Creative (RM)
#128545760
Photo Researchers
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Visual Screen Fotografias De Arquivo

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