Abstract: An optical element 20A which is composed of a light transmission characteristic medium, that has a refractive index higher than a refractive index of air, the optical element causes an incident laser beam to be propagated inside while reflecting the laser beam by a wall surface 20a a plurality of times, the optical element includes an incident window 21 which is located in a part of the wall surface 20a, that is for allowing the laser beam to be incident, an emitting window 22 which is located in a part of the wall surface 20a, that is for allowing the laser beam propagated inside to be emit, and wavelength dispersion compensating units 31 and 32 which are integrally located in parts of the medium, the wavelength dispersion compensating units compensate for wavelength dispersion by causing the laser beam to be transmitted or reflected at least twice.

Abstract: A sighting device is mountable to a gun. The device includes a light source (preferably a laser), a power source connectable to the light source and a mount attachable to the gun so that the laser is juxtaposed either the top surface of the gun or a side surface of the gun. In one embodiment, the sighting device includes a bottom rail mountable in a slot on the gun, wherein the slot is preferably positioned on the top surface of the gun. The sighting device may also include a mechanical sight that functions as the rear mechanical sight on the gun and/or a secondary light source.

Abstract: The laser enclosure includes an enclosure body which is adapted to accommodate a laser scanner therein. The enclosure with the laser assembly is used in a sawmill environment. The enclosure body includes an assembly for moving the mounted enclosure body to obtain and maintain a desired orientation and aiming for the laser scanner relative to a companion laser scanner. A movable front plate/door comprises one part of the enclosure body, mounted and arranged to be movable to an open position, permitting access to the interior of the enclosure body. The movable door also includes openings for the laser scanner components.

Abstract: An illumination system including at least one coherent light source, a light uniforming element, and a prism is provided. The coherent light source is capable of emitting a coherent beam. The light uniforming element is disposed on a transmission path of the coherent beam. The prism is disposed on the transmission path of the coherent beam and between the coherent light source and the light uniforming element. The prism has a light incident end and a light exit end. The light incident end has at least one incident polygonal pyramid portion protruding away from the light exit end. The prism is capable of rotating about an axis, and the axis extends from the light incident end to the light exit end. The illumination system effectively reduces the degree of the speckle phenomenon.

Abstract: A device for laser-optical generation of mechanical waves for processing and/or examining a body includes a laser light source for generation of laser light and a modulator, on which a generated laser light falls and with which, from an incident laser light, a predetermined laser light intensity distribution can be generated on or in the body, in such a way that mechanical waves are excited on or in the body, with which the body is processed and/or with which, via detection of said waves, the body can be examined. According to certain aspects of the invention, the modulator is formed as a diffractive optical element wherein a height profile structure is formed on the surface of the diffractive optical element, with which the phase of the incident laser light is varied, thus generating a predetermined laser light intensity distribution.

Abstract: Optical apparatus includes a semiconductor substrate and an edge-emitting radiation source, mounted on a surface of the substrate so as to emit optical radiation along an axis that is parallel to the surface. A reflector is fixed to the substrate in a location on the axis and is configured to reflect the optical radiation in a direction that is angled away from the surface. One or more optical elements are mounted on the substrate so as to receive and transmit the optical radiation reflected by the reflector.

Abstract: A light source having (a) a light emitter that emits a light beam along a first axis, the light beam having a highest degree of anisotropic coherency in a second axis perpendicular to the first axis; and (b) a light multiplexer positioned optically downstream of the light emitter, the multiplexer having an axis of multiplexing perpendicular to the first axis, the second axis and the axis of multiplexing being oriented at an angle with respect to each other that is other than 0, 90, 180 and 270 degrees.

Abstract: A beam irradiation device includes a semiconductor laser; a lens into which laser light emitted from the semiconductor laser is entered; and a scanning portion which causes the laser light transmitted through the lens to scan a targeted area. In this arrangement, the semiconductor laser has a laser chip; a cap which houses the laser chip; and an emission opening formed in the cap and adapted to pass laser light emitted from the laser chip. The emission opening has an aperture which restricts an incident area of the laser light into the lens.

Abstract: A laser light source includes a laser element that outputs a fundamental wave; a wavelength conversion element to which the fundamental wave is input and that wavelength-converts at least a portion of the input fundamental wave to a converted wave having a wavelength shorter than the fundamental wave; a first waveguide that guides an output wave from the wavelength conversion element; a second waveguide that attenuates and guides a component of the fundamental wave included in the output wave from the first waveguide; a diffraction grating that is formed in the first waveguide and locks a wavelength or a frequency of the fundamental wave output from the laser element by feeding back the fundamental wave output from the wavelength conversion element.

Abstract: There is provided a semiconductor light-emitting device including a semiconductor light-emitting element, a phosphor layer disposed in a light path of a light emitted from the semiconductor light-emitting element, containing a phosphor to be excited by the light and having a cross-section in a region of a diameter which is 1 mm larger than that of a cross-section of the light path, and a heat-releasing member disposed in contact with at least a portion of the phosphor layer and exhibiting a higher thermal conductance than that of the phosphor layer.

Abstract: The invention provides for an illuminator device. The device includes a light emitting means, such as an LED with a white phosphor, a waveguide or light directing and reflecting means which has an output means for release of light, and a lens system. The device may be formatted as a flashlight device. Preferably, the LED emits blue light, and the waveguide is at least partially coated to enhance reflectance.

Abstract: A laser light source includes: a laser array in which plural emitters are arranged; and a submount having first and second surfaces facing in opposite directions. The laser array is provided on the first surface. A distance between the first surface and the second surface of the submount varies along an array arrangement direction of the laser array.

Abstract: A laser pointer includes a human-machine interface disposed above the housing for users to control components inside the housing to decide patterns and size of the projecting image. The components consist of a frequency/phase control module, a driving energy control module, a laser beam generating module and a light scanning device. The frequency/phase control module controls the driving energy control module while the driving energy control module controls driving energy of the light scanning device. The size of the image is controlled by change of the amplitude of the light scanning device while the amplitude is changed along with the driving energy. The amplitude may also change along with the driving frequency. When the driving energy is fixed and the driving frequency is close to the resonant frequency, the amplitude increases. On the contrary, the amplitude decreases.

Abstract: Provided is an illumination device capable of reducing coherence of laser light emitted from a laser irradiation device to ensure safety to the eye at low cost. In the illumination device for exciting a fluorescent substance by irradiating the fluorescent substance with the laser light from the laser irradiation device to emit visible light for use as illumination light, a light scattering material is placed on and around an optical axis of the laser light.

Abstract: A light source apparatus includes a semiconductor laser which emits a laser beam, a coupling lens which converts the laser beam emitted from the semiconductor laser into a light flux, and a cylindrical lens into which the light flux is allowed to come from the coupling lens. The cylindrical lens is integrally formed with a lens portion, an outer circumferential portion which is arranged at an outer circumference of the lens portion, and a support portion which extends from the outer circumferential portion toward the semiconductor laser and which supports the coupling lens.

Abstract: A laser guide for rotating tools comprises a first housing portion and a second housing portion. A seal is provided between the first housing portion and the second housing portion. A lens is located in the first housing portion or second housing portion. A seal is provided between the lens and the first housing portion. A method of testing a laser guide comprising applying a pressure to an internal chamber of the laser guide. Monitoring the laser guide for pressure gains or losses in the chamber.

Abstract: An illumination system including a light source and a magneto-optical device is provided. The light source is adapted to emit a beam, and at least a part of the beam is polarized. The magneto-optical device is disposed in a transmission path of the beam and includes a plurality of magneto-optical material units. The magneto-optical material units are adapted to be disposed in the transmission path of the beam, and at least a part of the magneto-optical material units has different optical rotation. The magneto-optical device is adapted to move so as to make the magneto-optical material units move with respect to the beam.

Abstract: In a light source device including an aperture member that regulates a light beam, |(Pap1?Pap2)/Pap2|<|(P1?P2)/P2| is satisfied where P2 is a light intensity of the light beam entering the aperture member at a time t2 when 2 microseconds have passed since current was applied to the laser, P1 is a light intensity of the light beam entering the aperture member at a time t1 when 40 nanoseconds have passed since a light intensity of the light beam entering the aperture member reached 0.1 time the light intensity P2, Pap2 is a light intensity of the light beam output from the aperture member at the time t2, and Pap1 is a light intensity of the light beam output from the aperture member at a time t1? when 40 nanoseconds have passed since a light intensity of the light beam output from the aperture member reached 0.1 time the light intensity Pap2.

Abstract: A light source device is equipped with a highly directional point light source, a light source installation part having a prescribed area where the point light source is installed, and a lateral reflection part that is vertically arranged to a prescribed height from the periphery of the light source installation part. The lateral reflection part is formed with a light-transmitting reflector plate that has a reflection/transmission pattern and is provided with multiple reflection/transmission parts for reflecting and at least partially transmitting light.

Abstract: The invention relates to a lighting apparatus comprising a laser source (2) for emitting laser light (3). The lighting apparatus further comprises a first laser light modification unit (7) for modifying an optical characteristic of the laser light, which first laser light modification unit (7) is situated at a first location, and a second laser light modification unit (8) for modifying an optical characteristic of the laser light, which second laser light modification unit (8) is situated at a second location. The lighting apparatus further comprises a laser light distribution modification unit (4) for modifying a laser light distribution (5, 6) directed onto at least one of the first and second laser light modification units (7, 8) from a first to a second laser light distribution which is different from the first laser light distribution.

Abstract: An illumination device includes: a light source which has an emission surface forming area where a plurality of emission surfaces are disposed; a plurality of converging lenses disposed in correspondence with the plural emission surfaces to converge emission lights emitted from the emission surfaces; a first fly-eye lens which divides lights converged by the plural converging lenses into a plurality of partial lights; a second fly-eye lens which converges the plural partial lights; and a condenser lens which stacks the plural partial lights converged by the second fly-eye lens on an illumination receiving area, wherein the plural converging lenses stack the emission lights on the first fly-eye lens.

Abstract: An illumination device includes: a light source which emits a plurality of emission lights; a first condenser lens which stacks the plural emission lights emitted from the light source; a first fly-eye lens which divides lights stacked by the first condenser lens into a plurality of partial lights; a second fly-eye lens which converges the plural partial lights; and a second condenser lens which stacks the plural partial lights converged by the second fly-eye lens, wherein the first condenser lens stacks the plural emission lights emitted from the light source on the first fly-eye lens, and the second fly-eye lens stacks the plural partial lights on an illumination receiving area.

Abstract: A portable electronic device includes a housing, a display module received in the housing, and a light source device received in the housing. The light source device includes a light guiding unit, a light reflecting unit, and stimulated radiation medium positioned between the light guiding unit and the light reflecting unit. Outside light arrives at the medium through the light guiding unit and stimulates the medium to emit light, and the light emitted by the medium is reflected by the light reflecting unit to emit from the light guiding unit and illuminate the display module.

Abstract: The invention relates to a lighting apparatus which comprises a laser light modification unit (2) for modifying laser light (3) to modified light and a laser (4) for emitting laser light (3) that is to be directed to the laser light modification unit (2). The lighting apparatus further comprises a first layer (5) and an opposing second layer (6), wherein the laser light modification unit (2) is arranged between the first layer (5) and the second layer (6), wherein at least one of the first (5) and the second layer (6) comprises a transparent material being transparent to the modified light and wherein the laser light modification unit (2) is adapted to allow the modified light to pass through the transparent material.

Abstract: In a light source device provided with a light emission tube in which a light emitting element is enclosed and at least one laser oscillator part for radiating a laser beam towards said light emission tube, for focusing a beam within a light emission tube with a large solid angle and for preventing that the beam with a high energy density impinges upon the wall of the light emission tube, the light emission tube has a tube wall, part of which is made to function as a focusing means, or the light emission tube has a focusing means at the inner surface thereof.

Abstract: An image display apparatus includes a laser source for emitting ultraviolet or blue display-use laser light having a wavelength of 420 nm or less; and a display unit including a fluorescent light generating section for generating fluorescent light when irradiated with the display-use laser light, wherein the display unit displays an image using the fluorescent light generated by the fluorescent light generating section, wherein the display unit further includes an extraneous light shielding section for shielding an extraneous light which is emitted from a back side of the display unit and which has a wavelength in a range where the fluorescent light is generated so as to prevent the extraneous light from entering in the fluorescent light generating section.

Abstract: An optical pointing device includes a light source, a lens and a reflector. The light source is utilized to provide a light beam, and the lens is disposed on the light path of the light beam to focus the light beam. The reflector is disposed on the light path of the light beam between the light source and the lens for reflecting the light beam, so that the length of the optical pointing device can be reduced.

Abstract: An apparatus, method, and system of aiming lighting fixtures. One aspect of the invention mounts a substantially collimated light source on a lighting fixture. The direction of the substantially collimated light source is fixed in a known relationship to the aiming direction of the lighting fixture. By finding the substantially collimated light source either by direct viewing or in a mirror, the aiming direction of the lighting fixture can be derived by using the known the relationship between the substantially collimated light source and the aiming direction of the fixture. Thus, the aiming direction of the fixture can be derived without operating the lighting fixture and can be derived even at relatively remote locations from the lighting fixture. The apparatus and method can be used on one fixture or a plurality of fixtures. It can also be used on one fixture of an array of fixtures to aim the entire array.

Abstract: A thin planar illumination device with a high light utilization efficiency is provided. In a planar illumination device 10, light source sections 15, 16, 17 and 18 each radiates laser light. The light guide members 19 and 20 polarize, by total reflection, light incident from side surfaces 19b and 20b on two opposite sides thereof, so as to be radiated from incident surfaces 19a and 20a, respectively. In a light guide plate 21, the light is incident from side surfaces beside the respective light guide members 19 and 20 so as to radiate irradiation light 24 from main surfaces 21a and 21b. The main surface of the light guide plate 21 is formed by a plurality of inclined surfaces, each being gradually thinned from the edge surfaces on two sides thereof toward a center thereof.

Abstract: The enclosure assembly includes an enclosure body which is adapted to accommodate a laser scanner therein for use in a sawmill environment. The enclosure body includes a lid portion which is hinged to permit access to the interior of the enclosure for convenient removal and cleaning of the laser scanner. A front end assembly extends from a forward end of the enclosure body and includes an air knife member mounted therein which in operation produces an air curtain which extends from the air knife towards the workpiece, tending to maintain the debris away from the laser.

Abstract: A light conversion composition and light sources utilizing that composition are disclosed. The light conversion composition includes a transparent carrier medium, a phosphor conversion medium, and a heat-conducting medium. The transparent carrier medium is transparent to light at first and second wavelengths. The phosphor conversion medium converts light of the first wavelength to light of the second wavelength, the phosphor conversion medium being dispersed in the transparent carrier medium. The heat-conducting medium has a thermal resistance that is less than that of the carrier medium. The heat-conducting medium is dispersed in the transparent carrier medium such that the heat-conducting medium is present in a concentration sufficient to yield a net thermal resistance that is less than 90 percent of the carrier thermal resistance. The heat-conducting medium can include particles of a transparent crystalline material, such as silicon, diamond, or sapphire.

Abstract: A light source device includes a surface emitting laser, a surface emitting laser holding unit on which the surface emitting laser is mounted, a parallel plate that is arranged on a light path of a light flux from the surface emitting laser so that the light flux enters into one surface thereof, and that is made of a transparent material, and a holder having a through hole that functions as a light path of the light flux from the surface emitting laser, wherein the surface emitting laser holding unit is brought into contact with the holder, the parallel plate is fixedly bonded to the holder, and a part of the through hole of the holder is sealed with the surface emitting laser holding unit and the parallel plate.

Abstract: A lighting device, comprising a solid state light emitter and a light filter. At least a portion of light emitted by the light emitter contacts the filter, and at least part of the light passes through the filter. Also, such lighting devices further comprising lumiphor, in which at least some of the first part of the light is absorbed by the lumiphor, which then emits light, and at least a portion of any light emitted by the lumiphor directed toward the filter is reflected by the filter. Also, a method of lighting, comprising illuminating a solid state light emitter in such devices. Also, a lighting device, comprising a solid state light emitter; a lumiphor and filter means for allowing at least a portion of light emitted by the light emitter to pass through and for reflecting a second portion of light emitted by the lumiphor after the lumiphor is excited.

Abstract: The invention relates to a target illuminator (1) for night-vision technology, comprising a laser source (2), the radiation power of the laser source being at least 15 mW, in particular from 100 to 500 mW, and the laser source being formed for emission of radiation having a wavelength ? of from 700 nm to 1400 nm, and a second optical system (4) for the divergent emission of the radiation. Furthermore, the target illuminator (1) has a first optical system (3) arranged down-circuit of the laser source (2) and before the second optical system (4) and intended for increasing the beam cross-section before entry into the second optical system (4) to a diameter of at least 5 mm and for guiding the beam into the second optical system (4). The angle of divergence (10) of the emitted radiation can be varied in a defined manner, the variability being limited for ensuring a minimum divergence.

Abstract: A light source device includes a first semiconductor laser element that oscillates a first laser beam having a visible-region wavelength, a second semiconductor laser element that oscillates a second laser beam having a visible-region wavelength, and a light-scattering body that is irradiated with first laser beam and second laser beam to scatter first laser beam and second laser beam without changing the wavelengths. Because the wavelengths are not converted, first laser beam and second laser beam oscillated from first semiconductor laser element and second semiconductor laser element are emitted without generating energy losses of first laser beam and second laser beam.

Abstract: One or more violet lasers and wavelength conversion materials, such as phosphor, are utilized to provide high efficiency light sources, illumination systems, projection systems and backlights that have no speckle at low cost. This solution bridges the gap that currently exists between lasers and light emitting diodes (LEDs) by providing a visible light source that has brightness higher than that of LEDs and lower than that of lasers.

Abstract: A semiconductor laser used as a light source of an optical module is susceptible to the return light from the lens surface. The problem has been conventionally solved by offsetting the optical axis of a lens and the optical axis of a semiconductor laser, but a high-precision and costly process for adjusting the positioning is required. An optical module and an optical unit, wherein the oscillation state of a semiconductor laser can be limited in the range of normal characteristics at a low cost, are provided by proposing a lens which eliminates the need for adjusting the positioning because there is little return light. As a first lens on which the light exiting a semiconductor laser impinges at first, a lens having an optical surface whose convex surface faces toward the semiconductor laser side is employed so that the light is diverged thus reducing the intensity of light returning to the semiconductor laser.

Abstract: A lighting apparatus of the present invention includes light source (101), rod integrator (105), reflecting mirror (103), diffusion plate (104) disposed adjacently to reflection mirror (103), reflective polarizing plate (107), and wavelength plate (106). The lighting apparatus further includes curved mirror (102) disposed among light source (101), reflecting mirror (103), and diffusion plate (104). Reflecting mirror (103) and curved mirror (102) include apertures (102a and 103a) formed to allow at least light from light source (101) to pass. Curved mirror (102) reflects light leaked from the entrance plane side of rod integrator (105) toward aperture (103a) of reflecting mirror (103).

Abstract: A tool for use in a lubrication system having an oil-containing sump for supplying lubricating oil to a mechanical device and an oiler device connected to the sump for delivering a supply of oil to the sump, the oiler device comprising a base for supporting an oil reservoir and an adjustable element movably disposed within the base for predetermining a level of oil to be maintained within the sump. The tool has a first portion configured to extend into the base for engagement with the adjustable element and a second portion disposed exteriorly of the base to visually indicate the disposition of the adjustable element relative to the oil-containing sump, preferably in the form of a pointing device, optimally a laser beam generating instrument, for representing the disposition of the adjustable element.

Abstract: A light source device includes: a light source which emits light; an optical member through which light emitted from the light source enters; a base on which the light source is mounted; a first holding member which fixes the optical member; and a second holding member which holds the first holding member and stands on the base in the emission direction of the light emitted from the light source.

Abstract: A light radiating device capable of reducing production costs and preventing sealing defects for a display device, and a method of fabricating an organic light emitting diode (OLED) display device using the same are provided. The light radiating device includes a light source to generate light and a light modifier, including a transmissive region and a non-transmissive region, that define an exposure region on a substrate. The method includes applying a frit to at least one of a first substrate having a pixel region and a second substrate, plasticizing the frit, and aligning the first substrate, the second substrate, and a light radiating device to define an exposure region on the at least one of the first substrate and the second substrate, and radiating the light to the frit to couple the first substrate and the second substrate.

Abstract: An illumination light source is provided with a laser light source having a laser medium with a specified gain region, and a reflector having a narrow band reflection characteristic. A part of a laser light emitted from the laser light source is reflected and fed back by the reflector, so that an oscillation wavelength of the laser light source is fixed at a reflection wavelength. A peak of a gain region of the laser medium is shifted from the reflection wavelength by a change of an oscillation characteristic of the laser light source, so that the oscillation wavelength of the laser light source is changed from the reflection wavelength. Thus, an oscillation spectrum of the laser light source is spread to reduce speckle noise.

Abstract: A mounting mechanism for a laser or reflector may consist of a gross adjustment mechanism and a fine adjustment mechanism. The gross adjustment mechanism may enable a laser or reflector to be oriented in an approximate orientation and locked in place. The fine adjustment mechanism may enable a fine and precise adjustment to be applied. The mounting mechanisms may include a mounting plate that may mount to the surface of a wall and protect the rest of the mounting mechanism from disruption, but may also allow the fine adjustment mechanism to be tuned. The mounting mechanisms may be used to create a durable yet easily adjustable laser maze amusement.

Abstract: Laser optical system for shaping at least one laser beam bundle made up of a plurality of laser beams generated respectively by an emitter, the emitters being offset relative to one another in a slow axis of the laser beams and at a distance from one another, with at least one plate fan located in the beam path of the laser beam bundle, which (plate fan) consists of several plates made of a light transmitting material, which (plates) are arranged offset in the direction perpendicular to their surface sides and are arranged with their surface sides in planes which enclose the beam direction and the fast axis of the laser beams, the plates forming respectively one first preferably flat plate narrow side for one beam entry and opposite this side one second preferably flat plate narrow side for the beam exit.

Abstract: A laser light source device includes a light source unit that emits laser light, an optical axis adjusting unit that adjusts an optical axis of the laser light, and a mounting member on which the optical axis adjusting unit is mounted. The optical axis adjusting unit includes an adjustment mechanism for adjusting the positions of a lens in X- and Y-axis directions. The adjustment mechanism includes an X-axis moving part that is movable in the X-axis direction, a Y-axis moving part that is moved together with the X-axis moving part in the Y-axis direction, X-axis adjusting means that is provided at the X-axis moving part and adjusts the position of the lens in the X-axis direction, and Y-axis adjusting means that is provided at the Y-axis moving part and adjusts the position of the lens in the Y-axis direction.

Abstract: A method and apparatus for modulating a particular light source used for laser display are provided. The apparatus includes a digital modulator digitally modulating light output from a semiconductor laser to a frequency higher than a repetition frequency required for laser image display; and a pixel brightness adjustor inserting at least one high-speed pulse into a period of the modulated output light, which is required for a single pixel, and adjusting a brightness of the pixel by adjusting the number of the inserted high-speed pulses.

Abstract: An illumination system comprises a light source, an optical element, a detection module, and a drive module. The optical element has a plurality of light transmitting regions through which light from the light source passes to produce a corresponding distribution curve of luminous intensity. A detection module thereof is used to detect a subject area and output a detection signal, and the drive module moves the optical element according to the detection signal of the detection module to generate required light intensity pattern of the light emitted from the light source, in which the light passes through a corresponding one of the light transmitting regions of the optical element.

Abstract: A projector includes a light source unit 63, a light guiding device 75, a display device, a projection side optical system and a projector control means, the light source unit 63 includes a light source 72 which emits laser light in the wavelength band of blue, a light emitting wheel 71 disposed on an optical axis of the light source 72 and a wheel motor 73 for driving to rotate the light emitting wheel 71, and the light emitting wheel 71 is formed of a circular substrate having a diffusion layer on a predetermined surface thereof, the diffusion layer being made up of minute irregularities which are formed directly on a surface of the circular substrate.

Abstract: A wavelength conversion device includes a laser light source that emits a fundamental wave; a wavelength conversion element that converts the fundamental wave into a second harmonic wave; and an optical system including a wavelength selective mirror that reflects the fundamental wave transmitted through the wavelength conversion element without being converted into the second harmonic wave, while transmitting therethrough the second harmonic wave generated by wavelength conversion, wherein the optical system makes the fundamental wave transmitted through the wavelength conversion element without being converted into the second harmonic wave enter the wavelength conversion element again to be subjected to wavelength conversion once or more than once, while being focused by the wavelength selective mirror, and the conversion efficiency in at least one of the second stage and stages subsequent to the second stage is higher than the conversion efficiency in the first stage, where the conversion efficiency in each

Abstract: A system for performing high-speed, high-resolution imaging cytometry utilizes a line-scan sensor. A cell to be characterized is transported past a scan region. An optical system focuses an image of a portion of the scan region onto at least one linear light sensor, and repeated readings of light falling on the sensor are taken while a cell is transported though the scan region. The system may image cells directly, or may excite fluorescence in the cells and image the resulting light emitted from the cell by fluorescence. The system may provide a narrow band of illumination at the scan region. The system may include various filters and imaging optics that enable simultaneous multicolor fluorescence imaging cytometry. Multiple linear sensors may be provided, and images gathered by the individual sensors may be combined to construct an image having improved signal-to-noise characteristics.