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7618415 |
Beam steering system for corneal laser surgery
A device and method for steering a laser beam to a focal point in target tissue requires generating a laser beam. Diversions of the laser beam from a central beam path are minimized by a sequential...
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7519096 |
Process and apparatus for a wavelength tuning source
An apparatus and source arrangement for filtering an electromagnetic radiation can be provided which may include at least one spectral separating arrangement configured to physically separate one...
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7512161 |
Device, method and system for generating an infrared image
The infrared image generation device, method and system generate realistic infrared images to accurately test infrared sensors. The device and system include a laser light source, at least one...
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7394839 |
Method and apparatus for controlling light power
A method and apparatus controlling a light power, the apparatus including a light power controller, which controls a quantity of light and disposed inside the main controller disposed outside the...
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7377656 |
Projector
A projector of rear-projection type including a light source that outputs a laser beam and a scanner that scans a screen with the laser beam. When a laser beam with energy exceeds an accessible...
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7369584 |
Laser projection display
A method and apparatus are provided for controlling the operation of a Laser Projection Display (LPD). Generally, the LPD is comprised of a laser, an optical system and a controller. The laser is...
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7336686 |
Laser display apparatus
Provided is a laser display apparatus in which speckle can be suppressed. The laser display apparatus includes: a laser comprising a first mirror and a second mirror that are separated by a cavity...
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7294863 |
Micro-lens built-in vertical cavity surface emitting laser
A micro-lens built-in vertical cavity surface emitting laser (VCSEL) includes a substrate and a lower reflector formed on the substrate. An active layer is formed on the lower reflector, generating...
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7218651 |
Arrangement for the generation of a pulsed laser beam of high average output
The invention is directed to an arrangement for generating a pulsed laser beam with high average output, in particular for generating a hot plasma which emits extreme ultraviolet (EUV) radiation....
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7113527 |
Method and apparatus for laser irradiation and manufacturing method of semiconductor device
When CW laser is irradiated on a semiconductor film while being relatively scanned in a fabrication process of a semiconductor device, many crystal grains extending in a scanning direction are...
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7113333 |
Screen having micro-lens array and projector
Aspects of the invention provide a screen or the like that enables a bright, homogeneous projection image to be observed in a wide range across an area where viewers are present. A screen having a...
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7092415 |
Laser optical apparatus
There is provided a structure for reducing optical loss in an optical apparatus (homogenizer) for making the intensity distribution of a laser beam uniform. In a multi-cylindrical lens (a glass...
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7016380 |
Multi-beam laser scanning unit
A multi-beam laser scanning unit including a plurality of laser diodes arranged in the vertical direction, and a plurality of collimating lens units having collimating lenses, which are arranged in...
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7010005 |
Minimizing high power laser thermal blooming in the atmosphere
The output of a high power pulsed or CW laser ( 22 ), which may be mounted on a vehicle ( 17 ) is reflected from a convex mirror ( 27 ) to a concave mirror ( 29 ) that is displaced radially outward...
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6956879 |
Semiconductor laser device, optical pickup using the same, and apparatus and method for manufacturing the same
The present invention relates to an optical pickup used for an optical recording information instrument such as CD-ROM, CD-R, MO, DVD and the like, and a semiconductor laser device assembled to be...
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6952435 |
Speckle free laser probe beam
The present invention contemplates a method and apparatus to generate a laser probe beam free of speckles. The present invention employs a holographic phase plate inserted in a laser beam path to...
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6951411 |
Light beam generation, and focusing and redirecting device
An improved light beam generation and focusing device ( 15, 50 ) has a light source ( 16, 51 ) constructed and arranged to emit at least one beam of light ( 20 ), and a lens assembly ( 17, 19, 56 )...
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6940888 |
Dual head laser system with intra-cavity polarization, and particle image velocimetry system using same
A laser system includes a resonator having two gain modules generating pulses, coupled with intra-cavity polarization into a single beam line, using a single output coupler. A laser controller...
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6901089 |
Laser instrument
The invention relates to instruments which include radiometers and which generate a laser beam for striking a target at a distance to assist in aiming the instrument at a selected area of a target....
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6888853 |
Laser radiation source
A system and method for selectively process material on a processing surface of a printing form to create a fine structure or pattern for images or text. At least one fiber laser comprising a pump...
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6782015 |
Laser survey instrument
A laser survey instrument includes a laser source; a beam waist position varying optical system having a movable lens group through which a laser beam emitted from the laser source passes, so that...
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6765937 |
Apparatus and method for analysis and control of timing of a train of high speed, high power laser pulses
An apparatus and method for flexibly and precisely varying temporal placement and duration of pulses, within a train of high speed, high power optical pulses. The invention includes optics adapted...
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6763045 |
Apparatus for and method of targeting
An apparatus for laser beam targeting and method of laser cutting or marking of an article is disclosed. In one aspect of the invention, the laser beam targeting apparatus comprises at least one...
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6717707 |
Method and system for controlling resonance within a resonator-enhanced optical system
A method and system for controlling resonance within a resonator-enhanced optical system provides improved tracking performance in resonator-enhanced optical measurement and data storage and...
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6714564 |
Dual function single laser
The invention is a dual function laser device for use in night vision systems. The invention uses lenses to cause one portion of a laser beam to converge to a target point and another portion of...
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6697393 |
Laser amplifier, method and apparatus for laser amplification, and laser oscillator
Two semiconductor laser light sources for outputting light of two properly selected wavelengths are employed as excitation light sources. That is, as excitation light sources, there are used a...
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6597715 |
Semiconductor laser, optical head, optical disk apparatus and semiconductor laser manufacturing method
The present invention provides a semiconductor laser, an optical head, an optical disk apparatus and the manufacturing method of the semiconductor laser wherein the recording density of a recording...
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6547397 |
Apparatus and method for projecting a 3D image
A laser projector for projecting a 3-D image onto an object. The laser projector has an optics module, a controller module, a power module, and a timing module. The timing module coupled with the...
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6526074 |
Laser scanning apparatus
A laser scanning apparatus comprises a light source, a deflecting unit, a rotating guide, a drive motor and an image forming lens. The light source emits laser beams. The deflecting unit deflects...
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6516009 |
Laser irradiating device and laser irradiating method
To restrain nonuniformity of irradiation when a linear laser beam is irradiated by scanning the beam, linear laser pulses are irradiated by scanning the pulses in an oblique direction by which...
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6485599 |
Curing of sealants using multiple frequencies of radiation
A system using several wavelengths, preferably from the output of a single laser, is described for curing a dual cure glue seal that affixes two substrates to form a liquid crystal display panel....
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6473443 |
System and method for generating a grating image
A method and a system for generating grating images with an improved speed is disclosed. The system utilizes a coherent light source for providing a coherent beam L, an exposure control device for...
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6418153 |
Method for operating a laser light source
In order to extend the life of the laser light source and to reduce the operating costs, a method for operating a laser light source, in particular for scanning in a confocal scanning laser...
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6396560 |
Method of producing liquid crystal display panel
Disclosed is a method capable of producing, at a high throughput, a large-area FPD such as a liquid crystal display panel or O-ELD having a horizontal scanning circuit portion including a TFT...
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6377601 |
Ion laser apparatus and mirror angle adjusting method therefor
An ion laser apparatus includes a laser tube, first and second mirrors, a mirror angle adjusting mechanism, and an alignment controller. The first and second mirrors are disposed to sandwich the...
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6370175 |
Laser beam luminous energy correction method, laser driving apparatus, laser beam scanner and image recording device
The object of the present invention is to precisely correct the luminous energy of a laser beam on a scanned surface which varies according to scanning and varies according to an angle of incidence...
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6343092 |
Light source device including semiconductor lasers
A cost-effective and accurate light source deice for use in an image forming apparatus and including semiconductor lasers is disclosed. The device needs only a minimum number of parts, obviates...
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6341136 |
Optical beam deflector modifying phases of respective portions of optical beam by two arrays of optical phase modulators
An optical beam deflector in which a crosssection of an incident optical (e.g., laser) beam is divided into a first plurality of portions (micro crosssections) by an array of first lenses, a...
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6263002 |
Tunable fiber Fabry-Perot surface-emitting lasers
This invention provides compact, fixed-wavelength and tunable fiber-optic lasers comprising a gain medium, for example a semiconductor, half-cavity VCSEL, or an organic light emitting polymer,...
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6246706 |
Laser writing method and apparatus
A laser writing system includes a high reflector and an output coupler that define an oscillator cavity. A gain medium and a mode locking device are positioned in the oscillator cavity. A diode...
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6246705 |
Optical scanning device
An optical scanning device is provided with a light source that emits a light beam, a driver that controls output power and modulation of the light beam emitted by the light source, a controller...
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6229639 |
Multiplexer for laser lithography
A laser lithography system in which two or more lasers provide laser illumination for two or more lithography exposure tools through a laser beam multiplexer. The mulitplexer contain several mirror...
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6181363 |
Light-source device of a multi-beam scanning apparatus
A light-source device of a multi-beam scanning apparatus including a plurality of semiconductor lasers, collimator lenses provided for the semiconductor lasers and a holder member integrally...
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6144685 |
Two-dimensional surface emitting laser array, two-dimensional surface emitting laser beam scanner, two-dimensional surface emitting laser beam recorder, and two-dimensional surface emitting laser beam recording method
A plurality of lasers (having openings 170) are formed at predetermined positions at equal intervals on at least two main scanning lines on a semiconductor substrate 100. The lasers have each a...
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6047010 |
Second harmonic generator and laser applied units
A second harmonic generator comprising a semiconductor laser as an excitation light source and a resonator having a solid laser crystal excited by the excitation light source, a control element for...
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6008925 |
Light beam scanning apparatus and method
A light beam scanning apparatus employs a movable reflector (32) having a large number of flat reflective sides (44) and a deflector (16) which shifts the light beam (10) at high speed across a...
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5956356 |
Monitoring wavelength of laser devices
The invention is a circuit for monitoring the wavelength of a laser device such as a semiconductor laser. A piezoelectric resonator is positioned in the path of the light beam so as to form a...
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5949803 |
Method for the exposure of laser sensitive materials without the effects of intermittency
A method for exposing light sensitive material to provide exposure patches representing the material sensitivity and which minimizes the effects of intermittency of the light sensitive material,...
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5867522 |
Autofocusing system for a laser transmitter
An autofocusing system for a laser transmitter is provided. A laser beam is swept across a target having a plurality of sections. The target includes a first reflective section and a second...
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5822343 |
Operating and control system for lasers useful in bar code scanners
In order to set the output optical power of a laser diode precisely and under digital control without expensive digital to analog conversion devices, a digital controller provides a sequence of...
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