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3638 results about "First light" patented technology

In astronomy, first light is the first use of a telescope (or, in general, a new instrument) to take an astronomical image after it has been constructed. This is often not the first viewing using the telescope; optical tests will probably have been performed in daylight to adjust the components.

System and method for photoacoustic imaging and monitoring of laser therapy

A system and method for monitoring laser therapy of a target tissue include a therapeutic control unit having a first light source configured to deliver light to the target tissue for therapy, an ultrasonic transducer for receiving photoacoustic signals generated due to optical absorption of light energy by the target tissue, and a monitoring control unit in communication with the ultrasonic transducer for reconstructing photoacoustic tomographic images from the received photoacoustic signals to provide an optical energy deposition map of the target tissue. A second light source utilized for imaging may also be provided.
Owner:THE RGT OF THE UNIV OF MICHIGAN

Modular adaptive optical subsystem for integration with a fundus camera body and CCD camera unit and improved fundus camera employing same

A modular fundus camera including an adaptive optical module that detachably interfaces to a fundus camera body and image capture subsystem. The fundus camera body directs light produced from a first light source into the human eye and that collects and collimates retinal reflections. The adaptive optical module includes a wavefront sensor, controller and phase-compensating optical element. The wavefront sensor measures phase aberrations in the retinal reflections and operates in a closed-loop fashion with the controller to control the phase-compensating optical element to compensate for such phase aberrations to produce phase-compensated retinal reflections for output to the image capture subsystem.
Owner:ADAPTIVE OPTICS ASSOC

System and method for measuring corneal topography

A system measures a corneal topography of an eye. The system includes a group of first light sources arranged around a central axis, the group being separated from the axis by a radial distance defining an aperture in the group; a plurality of second light sources; a detector array; and an optical system adapted to provide light from the second light sources through the aperture to a cornea of an eye, and to provide images of the first light sources and images of the second light sources from the cornea, through the aperture, to the detector array. The optical system includes an optical element having a focal length, f. The second light sources are disposed to be in an optical path approximately one focal length, f, away from the optical element.
Owner:AMO DEVMENT

Illuminating device and projection type video display

InactiveUS20060023172A1Increase amount of lightReduce distanceProjectorsCondensersLight sourceOptical axis
An illuminating device comprises a first light source in which LED chips are arranged in an array shape and a second light source in which LED chips are arranged in an array shape. The two light sources of each illuminating device are arranged such that the main light-emission optical axes of the light sources are perpendicular to each other. Moreover, a time-division switching mirror is provided at a crossing position between the main light-emission optical axes. The first light source and the second light source alternately emit pulses of light. The pulsed emission is a method of supplying a large amount of electric currents to the LED chips in a short time period, and a light-emitting amount increases compared to a steady-state emission of the LED chips. The time-division switching mirror becomes a transmitting state when the first light source is lighted, and becomes a reflecting state when the second light source is lighted.
Owner:SANYO ELECTRIC CO LTD

Systems and methods with angled input beams for an optically pumped magnetometer

An optically pumped magnetometer device includes a first vapor cell having a light input window; a first light source configured to produce a first light beam; a first prism optic configured to receive the first light beam from the first light source and redirect the first light beam into the first vapor cell at a non-normal direction relative to the light input window of the first vapor cell; and a first light detector configured to receive the first light beam after passing through the first vapor cell. The device may also include additional light sources and light detectors which may share the prism optic and vapor cell (or utilize another prism optic or vapor cell or both).
Owner:HI LLC

Grating-based sensor combining label-free binding detection and fluorescence amplification and readout system for sensor

A grating-based sensor is disclosed that has a grating structure constructed and designed for both evanescent resonance (ER) fluorescence detection and label-free detection applications. Some embodiments are disclosed which are optimized for ER detection in an air mode, in which the sample is dry. Other embodiments are optimized for ER detection in liquid mode, in which the sample is suspended in liquid medium such as water. One and two-dimensional gratings are also disclosed, including gratings characterized by unit cells with central posts, central holes, and two-level, two-dimensional gratings. A readout system for such sensors is also disclosed. One embodiment includes a first light source optimized for collecting label-free detection data, a second light source optimized for collecting ER fluorescence amplification data, and at least one detector. In one embodiment, the detector is an imaging system and includes a CCD camera for collecting both ER and label-free data. In other embodiments, the at least one detector takes the form of a spectrometer for collection of label-free data and a photomultiplier for collecting ER data. In other embodiments, a single light source such as a tunable laser or broad band light source is used.
Owner:X BODY

Light guide, illumination system, backlighting system and display device

The invention relates to a light guide (10) for illuminating a light output window (120) of an illumination system (100), the illumination system, a backlighting system (100) and a display device (200). The light guide comprises a first light guide part (10A) comprising a first light guide extension (70A) extending from a first edge wall (40A) of the first light guide part (10A), and comprises a second light guide part (10B) comprising a second light guide extension (70B) extending from a second edge wall (40B) of the second light guide part (10B), the first light guide extension (70A) being configured for positioning a first light input window (80A) at a side of the second light guide part (10β) facing a rear wall (30B) of the second light guide part (10B), the second light guide extension (70B) being configured for positioning a second light input window (80B) at a side of the first light guide part (10A) facing the rear wall (30A) of the first light guide part. An effect of the light guide according to the invention is that due to the configuration of the first light guide extension and the second light guide extension, the first light input window of the first light guide part is arranged behind the second light guide part, and the second light input window of the second light guide part is arranged behind the first light guide part.
Owner:KONINKLIJKE PHILIPS ELECTRONICS NV

Illumination device and liquid crystal display device

A backlight (illumination device; 2) of the present invention includes: multiple light sources (5); multiple light guide plates (7, 17, . . . ) for causing surface emission of light from the light sources (5); and a diffusing plate (8) for diffusing light from the light guide plates (7, 17, . . . ), the diffusing plate (8) being provided so as to be separate from and face the light guide plates (7, 17, . . . ). Each of the light guide plates (7, 17, . . . ) includes: a light-emitting section (7b) having a light-emitting surface (7a); and a light guide section (7c) for guiding, to the light-emitting section (7b), light from the light sources (5), a light-emitting section (17b) of the first light guide plate (17) being provided above a light guide section (7c) of the second light guide plate (7) adjacent to the first light guide plate (17). A light amount adjusting section (11) for reducing the amount of light incident on it is provided so as to be separate from the diffusing plate (8) and so that the orthogonal projection of the light amount adjusting section (11) onto the light-emitting region covers the boundary between any adjacent light guide plates (7, 17, . . . ). This allows for production of a tandem-type illumination device having further improved luminance uniformity.
Owner:SHARP KK

Image capturing system, image capturing method, and recording medium

Provided is an image capturing system, including an image capturing section that includes a plurality of first light receiving elements that receive light in a specified wavelength region and light in a first wavelength region, which is different from the specified wavelength region, and a plurality of second light receiving elements that receive light in the specified wavelength region and light in a second wavelength region, which is different from the specified wavelength region; and a control section that controls a spectrum of the light received by the plurality of first light receiving elements and the plurality of second light receiving elements. The control section, at a first timing, causes the plurality of first light receiving elements to receive light in a wavelength region including the first wavelength region from a subject and causes the plurality of second light receiving elements to receive light in a wavelength region including the second wavelength region from the subject and, at a second timing, causes the plurality of first light receiving elements and the plurality of second light receiving elements to receive light in a wavelength region including the specified wavelength region from the subject.
Owner:FUJIFILM CORP
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