Abstract: Optical scanner for scanning a target surface with a light beam includes: a light deflector deflecting the light beam; a scanning lens made of resin and condensing the light beam deflected by the light deflector onto the target surface to form an image thereon; a frame to which the scanning lens is fixed and having a coefficient of linear expansion smaller than that of the scanning lens. The scanning lens is fixed to the frame at a first attachment portion and at least one second attachment portion of the scanning lens using adhesives. The first attachment portion is located closer to a center portion of a scanning range in a main scanning direction of the scanning lens than the second attachment portion is. A first adhesive used for the first attachment portion has an elastic coefficient greater than that of a second adhesive used for the second attachment portion.

Abstract: A light beam scanning device scans a luminous flux irradiated from a light source and deflected by a deflector to a scanned surface through an optical system having a set of mirrors. A apparatus, such as the light beam scanning device, further includes a scanning line curve adjusting device to bend a first mirror of the set of mirrors so as to correct a curve in a scanning line on the scanned surface, and a scanning line tilt adjusting device to change orientation of a second mirror of the set of mirrors so as to correct a tilt in the scanning line on the scanned surface. The light beam scanning device may be provided in an image forming apparatus.

Abstract: An image forming apparatus having a light scanning unit including a light source to emit a light beam; a deflector to deflect the light beam in a main scanning direction; an imaging lens to focus the light beam deflected by the deflector onto a photoconductor; at least one reflecting element to reflect the light beam that has passed through the imaging lens; and a bow control apparatus to correct a bow of a scanning line of the light beam, the bow control apparatus comprising first and second support units to support the reflecting element, first and second pressure units to pressure an inside and an outside of the reflecting element, respectively, and first and second adjusting elements to adjust the amount of pressure of the first and second pressure units, the bow control apparatus convexly or concavely bows the reflecting element to correctan image bow of a scanning line of the light beam.

Abstract: A plastic optical element for use in an optical scanning device including light effective portions that focus light, and at least one link portion that connects the light effective portions in the sub-scanning direction, the link portion forming a border arc having a curvature radius R of 2 mm or greater and contacting the light effective portions such that the tangent of the light effective portion at the connection point of the light effective portion and the border arc matches the tangent of the border arc at the connection point.

Abstract: A light source unit includes a holder, a light source, coupling lens, and a support member. The light source is supported by the holder and projects a light beam against a target. The coupling lens adjusts an optical axis of the light beam. The support member contacts the holder and the coupling lens to fix the coupling lens in place on the holder after the coupling lens adjusts the optical axis of the light beam. The holder and the coupling lens are adhered to the support member using an adhesive agent. An optical scanner includes a rotary deflector to deflect and scan the light projected from the light source unit, a scan optical element to focus the light deflected by the rotary deflector, and the light source unit. An image forming apparatus includes the optical scanner.

Abstract: An optical scanner includes a light source for projecting a light beam against a target, a deflector for deflecting the light beam, a coupling lens, an optical element, a light source support member, and a housing. The coupling lens directs the light beam to the deflector. The optical element focuses the light beam deflected by the deflector into a desired shape. The light source support member supports the light source. The housing houses the light source supported by the light source support member, the deflector, and the optical elements. The housing includes at least two coupling lens mounts on which the coupling lens is fixed on an optical path between the light source and the target, and accommodates multiple light source support members. The coupling lens is fixed to the coupling lens mount using an adhesive agent after an optical axis of the light beam is aligned.

Abstract: A scanning image displayer, including a beam provider emitting a laser beam; a beam scanner including a two-dimensional drive deflecting mirror, deflectively scanning the beam in a main scanning direction and a sub-scanning direction; and an optical element including a reflection surface before the two-dimensional drive deflecting mirror, deflecting the beam in a direction of the two-dimensional drive deflecting mirror such that the beam obliquely enters a mirror thereof. The two-dimensional drive deflecting mirror deflectively scans the beam to project the beam onto a surface to be projected, and the light intensity of the beam is controlled according to image information to form an image. A flat surface of a substrate where the mirror is formed is located parallel or almost parallel to an optical axis of the beam, and the reflection surface is located so as not to receive the beam deflectively scanned by the two-dimensional drive deflecting mirror.

Abstract: Provided are a light scanning unit and an image forming apparatus including the light scanning unit. The light scanning unit can include a source, a deflector, and an optical imaging system. The deflector can deflect the light generated by the source. The optical imaging system can form the deflected light into an image on a photosensitive medium and can have a first and second optical imaging lenses collectively configured: to have the functionality of an f-theta lens. The optical imaging system can be such that a first ratio (k/fm) is between about 0.81 and about 0.88, and a second ratio (fm/fm1) is between about 0.6 and about 0.91, where k is an f-theta scanning coefficient of the optical imaging system, fm is a main scanning focal distance of the optical imaging system, and fm1 is a main scanning focal distance of the first optical imaging lens.

Abstract: A surface-emitting laser device includes a transparent dielectric layer provided in an emitting region and configured to cause a reflectance at a peripheral part to be different from a reflectance at a central part in the emitting region. In the surface-emitting laser device, the thickness of a contact layer is different between a region having a relatively high reflectance and a region having a relatively low reflectance in the emitting region. The contact layer is provided on the high refractive index layer of an upper multilayer film reflecting mirror, and the total optical thickness of the high refractive index layer and the contact layer in the region having the relatively low reflectance is deviated from an odd number multiple of a one quarter oscillation wavelength of laser light emitted from the emitting region.

Abstract: An optical scanning device includes a light source device, a deflector, an input optical system for directing a light beam from the light source device onto the deflector, and an imaging optical system for imaging a light beam scanningly deflected by a deflecting surface of the deflector, upon a scan surface to be scanned, wherein, in a sub-scan section, a light beam directed from the input optical system toward the deflecting surface of the deflector is incident thereon at a finite angle with respect to a plane which is orthogonal to a rotational axis of the deflector, wherein the imaging optical system includes at least one molded imaging lens, and wherein a shape within a sagittal section of at least one lens surface, of lens surfaces of the at least one imaging lens, is non-arcuate, and a sagittal curvature in a light beam passage region has an extreme value.

Abstract: An optical scanning apparatus, including: a light source unit; a deflection unit; an incident optical system; and an imaging optical system, wherein at least one optical surface of a plurality of imaging lenses included in an imaging optical system has a non-circular shape in a sub-scanning section perpendicular to a main scanning direction, and a non-circular amount of the non-circular shape changes along the main scanning direction, and wherein the followings are satisfied: ds(Y=0)<0; and ds(Y=Ymax)>0, where ds(Y=0) and ds(Y=Ymax) respectively represent a paraxial field curvature at a center position in a sub-scanning direction perpendicular to the main scanning direction and a paraxial field curvature in the sub-scanning direction at a maximum image height in an effective scanning range of the surface to be scanned by the beam from the light source unit in the main scanning direction, among field curvatures at a center position in the effective scanning range.

Abstract: A Z-axis focusing mechanism having a scanner and a prism whose front and rear faces are not normal to the direction of travel of a light beam prior to the light beam impinging upon the front face of the scanner. The scanner and the prism are oriented with respect to one another such that when a light beam is scanned onto the front face of the prism, a scanned beam having varying Z-axis focus points at distinct lateral locations exits the rear face of the scanner.

Abstract: A scanning projector includes an optical filter. The optical filter exhibits a variable attenuation as a function of position. The scanning projector may scan sinusoidally in at least one dimension. The variable attenuation of the optical filter compensates for brightness variations due to sinusoidal scanning.

Abstract: A light scanning apparatus includes a scanner 104 which scans a coherent light beam from a light source 101 , a light beam component generator 110 which divides the coherent light beam outgoing from the scanner 104 into a plurality of light beam components, and an optical system 105 which collects the plurality of light beam components so that they are incident on a scan surface 106 at an incident angle different from each other, and superposes the light beam components at an identical position on the scan surface.

Abstract: An optical apparatus includes an image source, a scanning mirror, an actuator, and a scanning controller. The image source outputs an image by simultaneously projecting a two-dimensional array of image pixels representing a whole portion of the image. The scanning mirror is positioned in an optical path of the image to reflect the image. The actuator is coupled to the scanning mirror to selectively adjust the scanning mirror about at least one axis. The scanning controller is coupled to the actuator to control a position of the scanning mirror about the at least one axis. The scanning controller includes logic to continuously and repetitiously adjust the position of the scanning mirror to cause the image to be scanned over an eyebox area that is larger than the whole portion of the image.

Abstract: An optical element used in an optical scanning apparatus includes a diffracting surface composed of a diffraction grating. The diffracting surface includes a diffraction grating having a sectional shape linearly formed. If diffraction power in a main scanning direction on the diffracting surface received by an axial light flux is ?DO and refractive power in the main scanning direction on a refracting surface on which the diffraction grating is formed received by the axial light flux is ?ref, the optical element satisfies the following conditions: 0<?DO<1.8×10?3(1/mm), and 0.5|?DO|<|?ref|<1.5|?DO|, where the diffraction power ?DO and the refractive power ?ref have opposite signs.

Abstract: A scanning microscope includes a light source, illumination optics, and a scanning device for moving the illumination focus across a target region and doing so by varying the direction of incidence in which the illuminating beam enters an entrance pupil of the illumination optics. To incline the illumination focus relative to the optical axis of the optics, the scanning device directs the illuminating beam onto a portion of the entrance pupil that is offset from the center of the pupil and, in order to move the illumination focus across the target region, the scanning device varies the direction of incidence of the illuminating beam within said portion. An observation objective is provided which is spatially separated from the illumination optics and disposed such that its optical axis (O3) is substantially perpendicular to the target region and at an acute angle (?) to the optical axis (O1) of the illumination optics.

Abstract: There is provided an imaging system for producing an image of a scene, the image having at least one distorted zone, the imaging system comprising image producing means for producing an image of the scene; optical means for orienting light from the scene towards the image producing means, the optical means having a base optical power, the optical means being configurable to form at least one modified portion, each one of the at least one modified portion having a modified optical power different from the base optical power to thereby create at least one distorted zone on the image; and control means operatively connected to the optical means for changing the configuration of the optical means for forming the at least one modified portion. The imaging system may be reversible and provided instead as a scanning system.

Abstract: In a scanning image display device including a function to project and display a two-dimensional image on a projection screen using a deflecting unit that repeatedly operates a predetermined reflecting mirror surface to two-dimensionally scan a light beam, a large image distortion inevitably occurs, which is caused by the reflecting mirror surface that repeatedly and two-dimensionally operates for deflection. In order to solve the problem, a free-form surface lens or a wedge or trapezoid prism with a predetermined refractive index and a predetermined vertical angle is disposed in an optical path between the deflecting unit and the projection screen, thereby excellently correcting image distortion that occurs when scanning a light beam.

Abstract: A display apparatus that displays an image on a retina of a user, the display apparatus comprising: an image output unit (100) which includes a light source (101, 110), a wavefront shape change unit (102, 109), and a scan unit (103, 108) and is configured to output display light for displaying the image; and a deflection unit (104, 107) configured to deflect, toward an eye of the user, the display light outputted by the image output unit (100). The deflection unit (104, 107) has a deflection characteristic of suppressing image distortion caused by a change in relative position of the deflection unit (104, 107) with respect to a pupil of the user.

Abstract: Disclosed is a light scanning unit that includes an imaging optical system disposed between a beam deflector and a surface to be scanned. The imaging optical system includes two adjacent imaging optical devices that are inclined with respect to the light path. The inclination directions of the two adjacent imaging optical devices may be determined according to the number of reflection units that are disposed on the light path between the two adjacent imaging optical devices. The disclosed light scanning unit of the above configuration may advantageously exhibit reduced ghost images, reduced bowing of the scan line, improved beam diameter uniformity, and/or improved color registration.

Abstract: While one beam is being branched into a plurality of beams with different optical path lengths, the beams can be converged on the same position in the optical-axis direction with a simple structure even when relative angles between the beams differ. Provided is a beam splitter apparatus including a beam splitter that branches an input pulsed beam into two optical paths with different optical path lengths; relay optical systems that are disposed in the respective branching optical paths and that relay pupils in the optical paths; a beam splitter that multiplexes the relayed pulsed beams in the two optical paths; and a reflection optical system that endows pulsed beams branching off via the beam splitter with a relative angle.

Abstract: A variable view imaging system for observation of micro object with variable view orientation and position includes a telecentric lens group, a scanning mirror, wedge prisms, a deformable mirror and related optical elements. The combination of a scanning mirror and a telecentric lens group decouples the motion of scanning mirror and the view angle. The view angle is determined only by the angle of the wedge prisms. This design increases the zenith angle of the view and simplifies the kinematics of the system. The wedge prisms and the scanning mirror can supply a flexible view in a compact way. The wavefront error induced by the wedge prisms is corrected by the deformable mirror. In order to achieve the desired view state during operation, the scanning mirror angle and the wedge prisms angle are calculated iteratively based on the kinematics and Jacobian matrix of system.

Abstract: An image forming apparatus, including a deflector including a rotational axis and at least two-staged polygon mirrors circumferentially located on the rotational axis at shifted angles in a rotational direction thereof, to reflect a light beam entering each of the polygon mirrors while deflecting the light beam to scan plural image bearers; a divider to divide the light beam from a light source into at least two light beams to enter the polygon mirrors at different stages, respectively; a light receiver to detect the light beam reflected from the deflector; a detector to detect timings of the two-staged polygon mirrors to scan, based on a light beam detection interval detected by the light receiver; and alight shutter to shut a light beam entering an unused image bearer among the plural image bearers during a period when the light source lights up before the detector detects the timings.

Abstract: An image forming apparatus switches a line of image data, to be read out from a storage unit, to another, depending on a position in the line in a scanning direction such that the curving of a scanning line is offset, and reducing trouble in reading out image data in units of rectangular image data blocks A data processing section performs image processing based on a plurality of rectangular image areas generated by dividing image data stored in a memory section. An image reading unit reads out the image data as the rectangular image areas, and transfers the rectangular image areas to the data processing section. A printer section forms an image by scanning a photosensitive member with irradiation light based on the rectangular image data areas. A DMA controller stores positional information indicative of line-switching positions. The rectangular image data areas are read out according to the positional information.

Abstract: A holding mechanism for a long length optical element, which extends in a main scanning direction that is a movement direction of a deflected luminous flux by an optical deflector, and leads the deflected luminous flux to a scanned surface, includes; a holding member which is placed in a sub-scanning direction orthogonal to the main scanning direction and holds the long length optical element in at least two places. The holding member has, an adjusting section which deflects the long length optical element in the sub-scanning direction and controls a tilt of the long length optical element in a sub-scanning cross-section and/or occurrences of a tilt distribution in a longitudinal direction in the sub-scanning cross-section.

Abstract: An optical scanner includes a light source, an optical part, an enclosure, and a retainer. The light source projects light against a target. The optical part is disposed on a light path between the light source and the target. The enclosure houses the light source and the optical part. The retainer is fixed to the enclosure and includes a plurality of optical part mounts of identical shape and different sizes. The optical part is adhered to one of the plurality of optical part mounts.

Abstract: Briefly, in accordance with one or more embodiments, a scanned beam display may utilize one or more post-scan optics while at least partially maintaining an infinite focus, or nearly infinite focus, property of the display. The display may comprise a light source to generate a light beam, a scanning platform to generate a raster scan from the light beam projected as a projected image, one or more post-scan optics to at least partially adjust the projected image, and one or more collimating optics to focus the light beam from the light source, the one or more collimating optics having a selected focal length to at least partially provide infinite, or nearly infinite focus, of the projected image at or beyond a selected distance.

Abstract: A scanning optical apparatus includes a light source, a deflecting element for deflecting a beam of light emitted from the light source, and an optical device for causing the beam to be imaged into a linear shape long in the main scanning direction on the deflecting surface of the deflecting element. The device comprises a first optical element and a second optical element, and a third optical element for causing the deflected beam of light to be imaged into a spot-like shape on a surface to be scanned. The third element includes a single lens, the opposite lens surfaces of which both include a toric surface of an aspherical surface shape in the main scanning plane, the curvatures of the opposite lens surfaces in the sub scanning plane being continuously varied from the on-axis toward the off-axis in the lens's effective portion.

Abstract: An optical assembly for a system for inspecting or measuring of an object is provided that is configured to move as a unit with a system, as the system is pointed at a target, and eliminates the need for a large scanning (pointing) mirror that is moveable relative to other parts of the system. The optical assembly comprises catadioptric optics configured to fold the optical path of the pointing beam and measurement beam that are being directed through the outlet of the system, to compress the size of the optical assembly.

Abstract: A scanning optical device includes at least one light source unit for emitting a light beam, a first deflector for deflecting the emitted light beam in an auxiliary scanning direction, a condensing optical system for generating an intermediate image of the light beam deflected by the first deflector, a collecting optical system for condensing a light beam diverged from the generated intermediate image, a second deflector for deflecting the condensed light beam in a main-scanning direction, and a scanning optical system for scanning the surface to be scanned with the light beam deflected by the second deflector. The condensing optical system has an f-? characteristic, the collecting optical system has an f-sin ? characteristic, and the scanning optical system has an f-sin ? characteristic.

Abstract: An optical scanner includes a plurality of scanning optical systems each of which scans a different surface to be scanned and includes a light source configured to emit a light beam, an optical deflector having a plurality of reflection surfaces, and a synchronization detector configured to receive the light beam deflected by the optical deflector and detect a timing to scan an effective area of the surface to be scanned with the deflected light beam before a scanning is started or after the scanning is completed. The synchronization detector of one of a pair of scanning optical systems is disposed on a scanning end side to determine the scanning timing, and the synchronization detector of the other one of the pair of scanning optical systems is disposed on a scanning start side to determine the scanning timing.

Abstract: A cylindrical lens according to the present invention is a cylindrical lens of a bi-concave type in which both of a surface on which light is made incident and a surface from which the light is emitted are formed as concave surfaces, wherein, in at least one of the concave surfaces, both ends of the concave surface projecting to outer sides are formed to coincide with a plane, a normal of the plane being an optical axis of the cylindrical lens.

Abstract: In a scanning optical apparatus, light emitted from each of a plurality of light sources is converted by a first optical element into a beam of light, which in turn is converted by a second optical element into a linear image extending in a main scanning direction incident on a deflecting mirror at which the beams of light are deflected in the main scanning direction. A third optical element configured to convert the beams from the deflecting mirror into spot-like images is a single lens, and each of opposite lens surfaces thereof has a curvature in a sub-scanning direction varying continuously from a position corresponding to an optical axis thereof outward in the main scanning direction in such a manner that MTF values in a sub-scanning direction of an image formed on the scanned surface vary less with image height.

Abstract: A first optical system couples a light beam from a light source, including a first lens made of glass with a positive power and a second lens made of plastic with a negative power. A second optical system focuses the light beam from the first optical system onto a scanning surface and moves a light spot on the scanning surface in a main-scanning direction. One of an incidence plane and an output plane of the first lens is spherical while the other is spherical or flat. A cross-sectional plane of the second lens along one of the main-scanning direction and a sub-scanning direction has a non-arc shape on at least one of the incidence plane and the output plane.

Abstract: A scanning optical system is provided with a light source device (1), a deflection optical system (5) that deflects the light flux from the light source device (1) to carry our a scan in a main-scanning direction (y), and a scanning and image-forming optical system (8) that forms the light flux deflected by the deflection optical system (5) into an image on a scanning surface (H). The scanning and image-forming optical system (8) includes at least a first lens (6). The scanning optical system satisfies a predetermined condition relating to a numerical aperture of a light flux entering the deflection optical system (8) in a sub-scanning direction (z), and a distance between the deflection optical system (5) and the first lens (6). The first lens (6) is a plastic lens made of a predetermined resin as a base material.

Abstract: A method of restoring hair to skin that has suffered hair loss includes optically ablating an array of spaced-apart microchannels or voids into the skin and transplanting into the voids stem cells, a scaffold and a differentiation factor for causing the stem cells to differentiate into hair follicles.

Abstract: An optical scanning projection system includes a scanning light source component, a second reflecting element, a transparent element, a scanning element, a photosensitive element and a control module. The transparent element receives a main light beam emitted by the scanning light source component and reflects a part of the main light beam to be a reflected light. The reflected light is reflected by the second reflecting element, and the scanning element reflects the reflected light from the second reflecting element in a scanning manner. The photosensitive element receives the reflected light from the scanning element and outputs a sensing signal, and the control module actuates or stops actuating the scanning light source component according to the sensing signal. Therefore, when the scanning element is damaged, the control module may instantly stop actuating the scanning light source component, thereby enhancing the using safety of the optical scanning projection system.

Abstract: Some embodiments of the present invention provide adapters for use in posterior imaging systems. The adapters include lens set configured to adapt the posterior imaging system to operate as an anterior imaging system. Related optical coherence tomography systems and anterior imaging systems are also provided herein.

Abstract: An optical scanning device includes a light source for emitting a laser beam; a deflection body for deflecting the laser beam; a scanning lens for scanning the deflected laser beam on the surface of a photosensitive body; a reflection body having a reflection surface for reflecting the deflected laser beam towards the photosensitive body and having passed through the scanning lens; and a synchronizing sensor for receiving the reflected laser beam to send out a detection signal. The reflection surface has a curved arc surface depressed from both edges toward a center in a main-scanning direction equivalent to a scanning direction of the laser beam. The reflection body has a center of the reflection surface in the main-scanning direction displaced by a predetermined range in the direction of travel of the laser beam along the main-scanning direction from a center of the reflection body in the main-scanning direction.

Abstract: An optical scanner provided with at least one optical path through which an optical beam emitted from a light source is directed onto a surface of an object for forming an image thereon includes a deflector configured to deflect the optical beam and a curvature adjustment unit. The curvature adjustment unit includes a reflecting mirror configured to reflect the optical beam in a predetermined direction, a holder unit configured to hold the reflecting mirror and including at least one supporter that engages the reflecting mirror, a pressure unit configured to flexibly deform the reflecting mirror in a normal direction relative to a reflecting surface of the reflecting mirror, and a fixing member fixed to at least a portion of the reflecting mirror, configured to fix a position of the holder unit relative to the reflecting mirror in a main scanning direction by contacting at least a portion of the holder unit including the supporter.

Abstract: A light deflecting device is a light deflecting device for deflecting an incident light beam and has: a coarse motion light deflecting device which has an optical system having at least two conjugate points on an optical axis and deflects the light beam which has passed through one conjugate point and has entered the optical system as an output light beam which passes through the other conjugate point and has a deflection angle with respect to the optical axis while changing its transmitting direction; and a fine motion light deflecting device which is arranged in the optical system, applies a deflection to the incident light beam, and changes the deflection angle of the output light beam to a second deflection angle different from the deflection angle for a predetermined time.

Abstract: An optical system suitable for use in an optical instrument such as a handheld optical probe, the optical system including a scanning element and an objective, the objective including a variable focus lens that can be electronically controlled to change the focal length of the optical system. In some embodiments, the optical system can axially and laterally scan a subject material by sequentially focusing at an axial depth using the variable focus lens and laterally scanning the material at that depth using the scanning element.

Abstract: Barcode scanning device (3) includes a rotatable polygon mirror (27) and a first fixed reflection mirror (33). The polygon mirror (27) comprises a first reflection surfaces (c), (e) and a second reflection surfaces (a), (b), (d), (f). The first reflection surfaces (c), (e) reflect laser light and thus emitting first scanning light in a range of ±20° with respect to an optical axis (29). The second reflection surfaces (a), (b), (d), (f) reflect laser light and thus emitting second scanning light in a range larger than ±20° with respect to an optical axis (29). The first fixed reflection mirror (33) reflects the first scanning light and second scanning light forming scanning patterns in an object readable area. These scanning patterns are composed of a plurality of second scanning lines each parallel with other and first scanning lines disposed between the second scanning lines.

Abstract: An optical scanning device includes an input optical system having an input optical element, for projecting a light beam from a light source device onto a deflecting surface of an optical deflector, and an imaging optical system having an imaging optical element, for imaging the light beam scanningly deflected by the deflecting surface of the optical deflector, on a surface to be scanned, wherein the light beam is obliquely incident on the deflecting surface in a sub-scan section, wherein the imaging optical element has at least one optical surface which is decentered in the sub-scan section, wherein the input optical element has at least one optical surface having an asymmetric and aspherical surface shape, wherein the input optical element has a thickness dm1 in the sub-scan section and at a position where a first marginal light ray of the light beam passing through the input optical system, which first marginal light ray is closer to an optical reference axis than the principal ray of that light beam is, p

Abstract: An optical scanning apparatus for scanning a surface to be scanned includes: a light source that emits laser beam; a deflector that deflects the laser beam emitted from the light source; a plurality of optical scanning elements that introduce the deflected laser beam to the surface to be scanned; a housing that holds therein at least one of the light source, the deflector, and the scanning optical elements; a light receiving element that receives the deflected laser beam; a mirror that introduces the deflected laser beam to the light receiving element; and a holder that is provided on the housing and that holds the light receiving element and the mirror integrally.

Abstract: An optical scanning device includes a housing, a light source, a rotatable polygon mirror deflecting a light beam from the light source, a scanning optical system scanning a scanning object with the light beam from the polygon mirror, first and second reflective mirrors one of which is provided inside a deflection area, and a photodetector detecting the timing of scanning of the scanning object with the light beam from the one of the first and second reflective mirrors. The scanning object is one of first and second scanning objects. The housing includes first and second supports configured to support the first and second reflective mirrors at first and second positions, respectively, that are outside first and second scan-use areas, respectively. The first position is also inside the second scan-use area. The first and second scan-use areas are used for the scanning of the first and second scanning objects, respectively.

Abstract: A laser scanning device includes a laser output unit, a scanner, a light splitting unit, an imaging compensation unit, a detection unit, and a control unit. A scanning focusing unit included in the scanner focuses a laser beam emitted by the laser output unit to scan an object. A visible light beam received by the canning focusing unit is reflected by the light splitting unit and is incident into the imaging compensation unit. Next, the detection unit receives the visible light beam passing through the imaging compensation unit, and outputs a detection signal. The control unit adjusts the detection signal according to the wavelength of the visible light beam, the wavelength of the laser beam, the scanning focusing unit, and the imaging compensation unit. Therefore, the laser scanning device may compensate the aberration and the dispersion caused when the visible light beam passes through the scanning focusing unit.

Abstract: A laser scanning device includes a laser output unit, a scanner, a light splitting unit, an imaging compensation unit, a detection unit, and a control unit. A scanning focusing unit included in the scanner focuses a laser beam emitted by the laser output unit to scan an object. A visible light beam received by the canning focusing unit is reflected by the light splitting unit and is incident into the imaging compensation unit. Next, the detection unit receives the visible light beam passing through the imaging compensation unit, and outputs a detection signal. The control unit adjusts the detection signal according to the wavelength of the visible light beam, the wavelength of the laser beam, the scanning focusing unit, and the imaging compensation unit. Therefore, the laser scanning device may compensate the aberration and the dispersion caused when the visible light beam passes through the scanning focusing unit.

Abstract: An optical scanning apparatus includes: a light source; a lens through which a light emitted from the light source transmits; a reflective member reflecting the light transmitting the lens; and a mirror configured to scan the light reflected by the reflective member. The light is projected in the same direction as an emitting direction of the light from said light source by causing said mirror to swing. The reflective member has a first reflective surface facing toward the light source and a second reflective surface facing toward a light exit surface from which the light exits from the optical scanning apparatus. The light source and the lens are arranged in a longitudinal direction of a case of the optical scanning apparatus. The mirror and the reflective member are arranged in a transverse direction of the case.