Abstract:
An apparatus (100) and a method is provided. An apparatus (100), comprising: at least one color separation diffraction grating (10) configured to direct different spectral components (51, 52, 53) of incident light (40) in different directions; one or more further diffraction gratings (20) configured to at least partially compensate for dispersion in one or more of the different spectral components of light (51, 52, 53); and one or more image sensors (30) configured to detect the one or more dispersion compensated spectral components of light (61, 62, 63).
Abstract:
A wide field-of-view infrared optical imaging system with extended spectral coverage into the 1.0 to 2.5 μm wavelength range. In one example, an optical imaging system includes an imaging detector sensitive to light in a wavelength range of at least 1.0 μm to 5.0 μm, and a plurality of lenses optically coupled together and configured to focus incoming light onto the imaging detector, the plurality of lenses each comprised of a material that is transparent to the light in the wavelength range of at least 1.0 μm to 5.0 μm, wherein a pupil of the optical imaging system is located external to the plurality of lenses between the plurality of lenses and the imaging detector.
Abstract:
A novel soft beamsplitter mounting system as part of an interferometer to protect the beamsplitter substrate from external stresses and thus preserve optical flatness is introduced. The soft mounting system enables such protection by being more flexible that the beamspitter substrate so external forces deforms the mount rather than the beamsplitter. Although the soft beamsplitter mounting configurations disclosed herein protects the beamsplitter, the interferometer itself is less stable because the mounts of the present invention allows the beamspltter to tilt more easily than other components held in the interferometer. The improved tilt control embodiments of the present invention turns this seemingly deleterious effect into a cost saving benefit by using the inexpensive soft mounting system as a flexure to allow an improved active control system to maintain tilt alignment in a system that is more rugged than conventional interferometers.
Abstract:
A prism system is disclosed for splitting a broadband incoming light beam. In one embodiment, the broadband beam enters the prism system and is shifted laterally through a parallelogram shaped prism. The beam then encounters a first dichroic coating treated surface. The light that is reflected off of the surface strikes the internal wall of the prism to undergo total internal reflection within the prism. The beam exits the prism parallel to the original incoming broadband beam. The beam that passes through the dichroic surface reaches a second dichroic coating treated surface where a specified waveband of light is reflected while the remaining wavelengths pass through. The beam reflected by the second dichroic surface undergoes a total internal reflection and exits parallel to the incoming broadband beam. The light beam which passes through the second dichroic surface exits the prism parallel to the original incoming broadband beam.
Abstract:
An image duplicator (1) is described, for duplicating an incoming image relating to a spacial object examined into two images in the same image plane which have different spectral characteristics, comprising dispersion means (5) for subdividing a light signal (F) relating to the incoming image into two separate beams (T, R), each beam (T; R) having different optical characteristics from the other (T;R); image forming means (12) for obtaining an output signal including two separate images formed on the same image plane (P2), said separate images having different spectral characteristics but representing the same spatial object; wherein the dispersion means (5) comprise a single reflecting mirror (11) for directing one of the separate beams (T; R) towards the image forming means (12).
Abstract:
An endoscope or wand device comprising transmitting members, in which the transmitting members comprise a coating that transmits between about 95% and about 99.5% of energy at a wavelength within the infra red spectrum.
Abstract:
Anordnung zur Aufteilung von Detektionslicht in einem Laser-Scanning-Mikroskop, wobei eine spektrale Separierung unterschiedlicher Spektralanteile in transmittierte und ausgeblendete Anteile erfolgt, wobei die Aufteilung durch mindestens einen in einem Winkel ungleich 90 und Null Grad zur optischen Achse verkippten beschichteten Filter erfolgt, wobei der Winkel zur optischen Achse weniger als 20 Grad, vorteilhaft weniger als 10 Grad von der optischen Achse abweicht.