Abstract: A system and method for fundus imaging wherein selective illumination of a sector of the field of view of the fundus, using off-axis illumination, provides images of acceptable clarity, resolution, and size, with significantly reduced reflections, in a compact system. By rotating illumination around the optical axis, sectors of the fundus may be selectively and sequentially illuminated. An image of the entire field of view of the fundus is obtained by combining images, e.g. two or more half images, obtained within a single shutter exposure or capture period. An illumination system using LED light sources and a rotatable occluder provides for a lightweight, handheld and portable fundus imaging system. It may take the form of a fundus camera, a fundus imaging lens module for regular camera, or an adapter which couples to the standard lens of a camera to create a low cost fundus camera.

Abstract: A portable foldable lighting designer (10) which includes a closed frame (11) made from an elastic, deformable material, where the frame is movable between a folded and an unfolded position, and a covering (12). The covering (12) is arranged in the frame and held by the latter to manipulate the light, and is kept tightened in the plane of the frame, when the lighting designer is completely unfolded by the material tension of the material of the frame. The covering is dimensioned smaller in a direction (B) than the width (D) of the uncovered frame in the completely unfolded position.

Abstract: A parabola light reflector includes multiple light reflecting surfaces on an umbrella skin. A first or outer skin is used to provide support for and to define the shape of the inner skin. A second or inner skin has a larger surface area than the outer skin and the inner skin is made up of panels of light reflecting material. The panels of the inner skin are stitched together in a variety of different configurations to achieve differing results. The inner skin is configured into a collection of three dimensional folds, creases, bends and angles that significantly increases the surface area of the inner skin that is available to reflect light and to create novel light dispersion patterns from a light source associated with the light reflector.

Abstract: A document camera and its light box are provided in the disclosure. The light box includes a base, a light guiding plate embedded in the base, and a light source device movably disposed on the base. The light guiding plate has a light input face and a light output face which are both light transmissive from the base. When the light source device is moved to face the light input face, the light source device provides lights outwards the light guiding plate via the light input face, otherwise, when the light source device is moved away from the light input face, the light source device provides light to the light output face down wards.

Abstract: A flash apparatus and related systems and methods of use are disclosed herein. The apparatus includes a housing having a generally concave reflector, and a light source disposed within the reflector. A handle can be engaged with the housing and/or the light source to facilitate manual positioning and repositioning of the light source relative to a photographic apparatus remote from the housing and/or an object to be photographed. A synchronization device is in communication with the light source and the photographic apparatus for causing the light source to emit a flash of light when the photographic device is actuated. A modifier can also be engaged with the reflector for modifying the emitted flash of light. In a portable system, various interchangeable reflectors, modifiers, and light sources can be provided. Power sources for the light sources and a stand engageable with the handle can also be included.

Abstract: A photoflash includes a substrate, a flashtube and a light field control member. The substrate serves as a bottom of a cavity formed there-above and having a plurality of circuits embedded in the bottom of the cavity. The flashtube is received in the cavity and electrically connected to the circuits. The control member includes a liquid crystal panel, a plurality of transparent electrodes attached on opposite of the liquid crystal panel and a control circuit attached on the panel and electrically connected to the electrodes. The liquid crystal panel is mounted on the substrate and covers the cavity, while the control circuit is electrically connected to the circuits of the substrate. The control circuit is configured for controllably powering transparent electrodes thereby adjusting the arrangement of liquid crystal cells in particular regions of panel to control which portions of the light emitted from the flashtube will pass through the light field control member.

Abstract: A system for diffusing and directing the light from lightweight, portable, photographic light sources that is inflatable, flexible, and lightweight, and has two separate layers of translucent diffusion material (105 and 106) and has sides (102) of an opaque material. The two layers of diffusion material may diffuse the light to different degrees. It can be rapidly mounted to or removed from the light source (118), and is designed in such a way as to be readily fitted with an external light-directing device (120). It can be inflated quickly and it can also deflated and stowed conveniently and rapidly.

Abstract: A lighting fixture for use in video conferencing and general illumination includes a housing forming an interior cavity. The housing has an opening in a bottom portion thereof. The lighting fixture also includes at least one light holder for holding at least one light source positioned within the interior cavity of the housing, at least one diffuser plate positioned over the opening of the housing, and a plurality of louvers adjacent to the diffuser plate over the opening of the housing. Each of the plurality of louvers is positioned at an angle such that light produced by the light source is directed to a specific area.

Abstract: A flush mount mirror assembly (100) has a housing (102), a mirror assembly (110) and a light array (116). The mirror assembly (110) includes a mirror (114) coupled to a telescoping tube pair (124). The mirror (114) reflects light and is adjustable to various angular orientations.

Abstract: A light diffuser for use on a camera strobe/flash unit either on camera or off. The diffuser has a main body with a base and is composed of a non-transparent material. The diffuser splits the single light source into two directions sending light into a pair of wings/cowls that are removably mounted to the main body. Inside the diffuser main body is a light-splitting reflector with a reflective surface to add an amount of specular and focused light towards the two cowls. The wings/cowls create two soft light sources. Further, the wings/cowls may have other shapes, colors, features such as holes, outlets, etc., to create additional light sources of soft light. The wings/cowls may also be colored to adjust the projected diffused light therefrom. The base of the half-cylindrical main body may include a plurality of contact arms adapted to grip the photographic light source.

Abstract: A photographic light diffusing device is provided. A cowl is adapted to be mounted on a photographic light source, the cowl including an opening through which the photographic light source is visible when the cowl is mounted on the photographic light source. The cowl may also include at least one movable flap and a filter slot for a gel filter.

Abstract: A photographic reflector includes an engagement unit, a support frame, a fabric canopy, and a lamp holder. The engagement unit includes an engagement seat and an engagement member moveably mounted in the engagement seat. The support frame includes a plurality of ribs and a plurality of stretchers corresponding to each respective rib. One end of each rib is pivotally connected to the engagement seat. One end of each stretcher is pivotally connected to a preset location of the corresponding rib, and the other end of each stretcher is pivotally connected to the engagement member. The fabric canopy is mounted on the ribs of the support frame and has a reflective layer at an inside thereof and a mounting hole defined at a location close to the engagement unit. The lamp holder is mounted in the mounting hole of the fabric canopy. The photographic reflector can be folded as compactly as desired, easily stored, and convenient in transportation and use.

Abstract: A foldable reflector screen includes a flexible, cloth-like reflective element having an inside and an outside, a supporting and tensioning structure arranged to support the reflective element on the outside, and a carrier element including at least one lamp and mounting the supporting and tensioning structure. The reflector screen has an open state in which the reflective element forms an essentially rotationally symmetrical body having an axis of rotation and has a light outlet opening. The reflective element comprises at least two reflective sections. The two reflective sections have in each case a different geometrical shape in a section containing the axis of rotation of the reflective element.

Abstract: A diffuser for releasable fastening to a reflector screen having screen spokes, includes a diffuser element and a fastening apparatus to fasten the diffuser element to the reflector screen. The fastening apparatus has a plurality of fastening elements constructed and adapted to receive corresponding screen spokes of the reflector screen. The fastening elements are constructed to apply a spring action and each fastening element has an opening to receive one screen spoke.

Abstract: The invention relates to an illumination device for flashlight photography comprising at least one reflector chamber which, in use, can be arranged in the direction of an object being photographed, having at least one reflector and at least one flash element arranged in the reflector chamber as first light source, as well as at least one UV filter element which, in use, covers the reflector chamber on a radially extending outer face in the direction of the object being photographed, the filter element having at least one ventilation opening. By means of the arrangement, an illumination device suitable for all fields of application is to be provided, a particular objective being to generate flash series of any desired length and at the same time to provide optimum UV protection on the illumination device. Uses of such an illumination device are also defined.

Abstract: A photographic light diffusing device for mounting to a photographic light source includes a base for attaching the photographic light diffusing device to the photographic light source, a semi-transparent hood extending from the base and defining a top edge, and a flap hinged to the top edge of the hood and rotatable with respect to the hood.

Abstract: The present invention is a portable camera and lighting unit for standalone use in videography to create a high-resolution well-illuminated video feed from a vast array of camera angles and positions, the illumination source always inherently tracking with the camera. The unit may also be used as a satellite in combination with a primary video conferencing and production station (VVPR) for multi-camera production and teleconferencing capabilities. The portable camera and lighting unit includes a portable base, a mast extending upward from the base, and an articulating boom that is fully-pivotable and extendable. A remote control Pan-Tilt-Zoom camera is mounted at the end of the boom for overhead images of healthcare procedures, and an adjustable beam light source is mounted directly on the camera for lighting.

Abstract: An apparatus for an electronic device, the apparatus comprising a light-output region and a movable part, the movable part comprising an optical element and being movable between an open configuration and a closed configuration with respect to the light-output region; wherein the apparatus is arranged such that, in the closed configuration, the optical element at least partially overlies the light-output region and, in the open configuration, the optical element overlies the light-output region to a lesser extent than in the closed configuration, and wherein the optical element is arranged to alter a pattern of light emitted from the light-output region such that the light is emitted in a first light output pattern in the open configuration and in a second light output pattern in the closed configuration.

Abstract: A light source (110) is fixed at a position and emits light in a direction away from an optical axis (A) of an objective lens. An outer reflecting mirror (an optical member) (130) and an inner reflecting mirror (an optical member) (140) are provided as a unit so that relative positions thereof are fixed. A reflecting mirror unit (120) can be moved in directions along the optical axis (A), i.e. up and down relative to the light source (110). A free-form curved surface portion (131) of the outer reflecting mirror (130) and a reflecting surface of the inner reflecting mirror (140) reflect light in different directions depending on a position of the light incident thereon.

Abstract: Disclosed are circuits that allow LED bulbs to be replaced regardless of color or construction of the LED element. When used for an LED light string, replacing an LED bulb does not affect the operation of the entire string. When used for other illumination purpose, for example, room light, the bulbs are interchangeable because they have the same operating voltage and current. A standardized input impedance is selected for all of the LED bulbs regardless of construction and color. A resistor circuit is used to create the standardized input impedance while optimizing the operating parameters of the LED element. The resistor circuit includes a bypass element so that if a LED element burns open, a series wired LED string will not go dark. This eliminates the necessity for parallel connected LED bulbs and allows enjoyment of other advantages and economies of series wired LED strings.

Abstract: A photoflash includes a substrate, a flashtube and a light field control member. The substrate serves as a bottom of a cavity formed there-above and having a plurality of circuits embedded in the bottom of the cavity. The flashtube is received in the cavity and electrically connected to the circuits. The control member includes a liquid crystal panel, a plurality of transparent electrodes attached on opposite of the liquid crystal panel and a control circuit attached on the panel and electrically connected to the electrodes. The liquid crystal panel is mounted on the substrate and covers the cavity, while the control circuit is electrically connected to the circuits of the substrate. The control circuit is configured for controllably powering transparent electrodes thereby adjusting the arrangement of liquid crystal cells in particular regions of panel to control which portions of the light emitted from the flashtube will pass through the light field control member.

Abstract: A photographic light diffusing device comprises a semi-transparent cowl which is adapted to be mounted on a photographic light source, the cowl including an opening through which the photographic light source is visible when the cowl is mounted thereon, and a removable semi-transparent cover detachably mounted on the cowl. In another embodiment, a camera flash system comprises a camera flash unit, and a diffuser unit having an adaptor and a tapered cylindrical body. The adaptor is formed to match the shape of the housing of the camera flash unit so that it may be fitted thereto, and the adaptor extends between the camera flash unit and the tapered cylindrical body of the diffuser unit. The diffuser unit widens from the adaptor to meet the tapered cylindrical body.

Abstract: A flash apparatus and related systems and methods of use are disclosed herein. The apparatus includes a housing having a generally concave reflector, and a light source disposed within the reflector. A handle can be engaged with the housing and/or the light source to facilitate manual positioning and repositioning of the light source relative to a photographic apparatus remote from the housing and/or an object to be photographed. A synchronization device is in communication with the light source and the photographic apparatus for causing the light source to emit a flash of light when the photographic device is actuated. A modifier can also be engaged with the reflector for modifying the emitted flash of light. In a portable system, various interchangeable reflectors, modifiers, and light sources can be provided. Power sources for the light sources and a stand engageable with the handle can also be included.

Abstract: In embodiments of the present invention improved capabilities are described for producing background separated product images for print and on-line display. An image formation system provides controllable background and foreground lighting of an item to facilitate acquiring images that appear to have no background, a platform for supporting items, cameras configured to acquire both high contrast and high quality images of the item, and automated image processing algorithms for creating item-only images that can be stored in an image library and presented to a user.

Abstract: The Anti-Picture with a means for detecting camera's radio frequency, a way of decoding said detected radio frequency, a switch/driver to trigger device, a way of producing light with one or more lighting elements, means of allowing said lighting element to reflect off of a one or more reflective surface to allow light to be directed and a means for all of said above to be encased a body wherein the said components are able to communicate with a light element allowing the light to reflect off of the said reflective surfaces to over expose and or interrupt a photograph.

Abstract: A compact handheld notebook computer using flash memory to store, retrieve and display information needed by emergency responders is designed for prolonged use under severe conditions and utilizes an electrophoretic display to conserve energy and provide a high resolution display more readable than LCD displays.

Abstract: A light dimming apparatus for dimming light output generated by a light source. A rectangular frame supports sets of blade members at a central aperture defined by the frame. The blade members of a set are positioned side-by-side, and adjacent ones of the blade members are hingedly connected together. Accordion-like movement of the blade members is provided responsive to application of forces applied to the blade members. A component of the applied forces causes linear translation of the blade members in to or out of the central aperture.

Abstract: An illumination device (1) for illuminating an object comprising a light source (2) to emit light (21), an adjustable optical element (3) for adjusting the light (21) originated from the light source (2) into adjusted light (31), and a controller (4) for controlling at least one element of a group of elements comprising the adjustable optical element (3) and the light source (2) in response to an adjusting control signal (71) via at least one driving signal (75, 76).

Abstract: The present example provides a flexible and compact system for diffusing light in multiple levels when taking photographs. An adapter capable of coupling many types of flashes is fitted to a first diffusion device. The diffusion device may be fitted inside a light box fitted with a diffusion lens so that additional light dispersion is provided. The light box may be substituted with a black box that tends to direct diffused light for further control over exposure. Various filters may also be used in the system allowing for further flexibility in setting exposure. And finally a system of reflectors and shields allow further control of lighting effects.

Abstract: An apparatus and methods that includes a gel holder and an optional shade holder that allows a user to add color or eliminate or reduce reflected color and to shape, shade, diffuse, soften, absorb, block, reflect, retract and dim light inside photographic reflectors such as photographic umbrellas or other reflective apparatus. The invention allows a user to mix, blend or shape light at the source and the resulting light can be symmetrical or asymmetrical. The invention allows a user to more efficiently add texture, eliminate hotspots and create shadows by changing positions of a gel holder with a gel and one or more shade holders with shades on a reflector focus tube.

Abstract: Accordingly, a primary object of the present invention is to provide a novel safety alert sign which provides a uniquely attention-getting and highly visible warning to oncoming drivers during both daylight, and, particularly twilight and dusk through the nighttime hours.

Abstract: Various image-capturing systems are disclosed that use polarized filters to reduce or control glare effects on captured images. In one embodiment, the system includes a light source, a first polarized filter adapted to polarize light emanating from the light source; a second polarized filter adapted to perform polarized filtering on received light; and an image-capturing device adapted to receive the filtered light. In another embodiment, the system further includes an actuator to selectively move any of the polarized filter into and out of the light path. In yet another embodiment, a method of forming a resultant image comprises recording a first image with a filter set to a first polarization angle, recording a second image with the filter set to a second polarization angle, and blending the first and second images. The recording of the first and second images may be performed simultaneously or at different times.

Abstract: A device for controlling projected light beam from an electronic flash, this invention consists of a tube of elastic material such as neoprene or polyurethane (4), with a light side (6) and a dark side (5). The shape and elasticity of this device allow its configuration to change by rolling the snoot over on itself. Rolling the snoot partially upon itself, changing its length, will thereby change the size of the projected light beam. Rolling the snoot inside out will select a different interior reflectivity, thus a different quality of projected light.

Abstract: A light fixture shining light upward has a mast with a base or is attached to room or furniture systems. In order to improve the acoustics or a room, structure of a room, and/or for the indirect lighting of workplaces, a canopy element including a textile canopy and a frame stretching the textile canopy has at least one shaft-like element of the frame located eccentrically relative to the canopy, and is attached to the light-fixture mast or another part of the light fixture shining light upward.

Abstract: A diffuser-reflector assembly for use with a photographic flash lamp (800) comprises, in one aspect, an elastic base (100) having rigid first inserts (125 and 130), two arms (105 and 110), a shaft (135), a pivot assembly (150), and one or more frames (116, 121) that hold second inserts (115, 120). The diffuser-reflector assembly installs slidably onto the light-emitting end of a flash lamp (800). The second inserts can have various optical properties. They can be specular or diffuse reflectors, color or neutral density filters, or a combination. The frames and inserts can be swung on the arms and independently pivoted over a wide range of angles above the lamp, thereby providing a wide range of lighting effects. The frames and arms are held in place by friction and can be adjusted by manual force. The entire assembly can be made of simple parts that snap together.

Abstract: A mounting apparatus for reflectors such as reflector umbrellas for lighting used in motion picture and still photography. The apparatus secures the reflector by retaining elements and the reflector may be removed efficiently from the apparatus and replaced by another reflector if desired by rotating one of the retaining elements about a hinge. The angular position of the reflector may be adjusted by rotating supports for the retaining elements to desired angular configurations by activation of a gear mechanism in a housing. The apparatus includes an indicator that indicates the position or angular orientation of the reflector and allows a user to orient the reflector into one or more desired angular configurations and remove the reflector while maintaining the orientation of the supports.

Abstract: A flash photography reflector system is mounted on a camera of the type wherein the camera's flash unit is positionable above the camera's accessory shoe. A pair of reflectors are mounted on a support strut which engages the accessory shoe. The reflectors are in spaced apart positions and mutually facing with the flash unit positioned between them. The flash beam is directed at a first one of the reflectors, which then directs the flash beam to a larger one of the reflectors, which, in turn, directs the flash beam outwardly toward the subject of the photograph. The first and second reflectors expand the beam so that the final outgoing flash beam is many times broader then the beam that would proceed from the camera's flash unit alone.

Abstract: An illumination device for a video presenter includes a light source and an optical lens. The light source radiates light beams incident on a stage where an object to be photographed is placed and arranged inclined at an acute angle with respect to a surface of the stage. The optical lens is arranged between the light source and the stage and inclined to be more parallel to the stage than the light source.

Abstract: An automatic lighting device includes an illuminance detector for detecting an external illuminance around a vehicle, a light controller for turning on/off a vehicular light, a driver's characteristics detector for acquiring information about driver's physical characteristics, and a threshold setting element for setting the illuminance threshold in accordance with the driver's physical characteristics. The controller turns on the light when the external illuminance is not more than the illuminance threshold.

Abstract: A universal lighting system for use with a computer web camera including a digital computing device fitted with a web camera for capturing images of a subject for transmission over a worldwide communication network. A base clamping mechanism is affixed to the computing device. A light array is adjustably connected to the base clamping mechanism for illuminating the subject positioned before the web camera. A diffuser lens is flexibly connected to the base clamping mechanism and sealingly positioned over the web camera for diffusing received light for creating a clear image of the illuminated subject prior to transmission over the communication network.

Abstract: A flash device includes a flash module and a color wheel. The flash module includes a flash lamp and a trigger circuit for triggering the flash lamp. The color wheel includes a color filter disk. The color filter disk includes a number of filter segments, wherein each of the filter segments is capable of being inserted into the light-emitting path of the flash lamp by rotation the color filter disk.

Abstract: A camera apparatus (10) has a zoom lens (12) having a zoom focus setting that is adjustable over a range of focus values and control circuitry for generating a variable voltage potential according to the zoom focus setting. A flash illumination apparatus (20) has a light source (32) and a variable focus liquid crystal lens (24), the variable focus liquid crystal lens (24) having a first and a second solid optical element (40, 50), chamber (44), the two electrodes (42, 48) and liquid crystal material (46). A variable voltage is applied to the liquid crystal material (46) for the lens power according to the zoom focus setting.

Abstract: A durable, portable for the lighting or imaging professional includes at least a first collapsible frame adapted to support a light modifying flag or a light modifying net. The collapsible frame includes first and second rigid frame components 22, 24 carrying fixed hinge pins 38 that connect to first and second foldable frame components. The collapsible frame defines frame components with frame ends and the kit includes at least one light modifying flexible material segment with frame end receiving portions. The collapsible frame has a first erected size and the flexible material segment has a second size not greater than said first size so that the collapsible frame, when erected, permits a user to place the flexible material flag or net under tension upon the frame.

Abstract: A multiparameter light is disclosed, which incorporates an LED (light emitting diode) tracking ring surrounding a main output lens. The LED tracking ring is capable of additive color mixing and in turn can simulate the color of the main projected light projecting from the main output aperture or output lens of the multiparameter light.

Abstract: A multiparameter light is disclosed, which incorporates an LED (light emitting diode) tracking ring surrounding a main output lens. The LED tracking ring is capable of additive color mixing and in turn can simulate the color of the main projected light projecting from the main output aperture or output lens of the multiparameter light.

Abstract: A lightwall instrument for photographic purposes includes a supporting frame, a light source, a diffuser wall, and one or more shading walls. The position of the light source is adjustable. The shape of the diffuser wall is selectively changed for different effects. The present invention provides a convenient and flexible lightwall instrument for better effect of photographs or films. The light generated by the lightwall instrument is soft, even, and saturated. The effects are highly adjustable. The operation is easy.

Abstract: An illumination apparatus having a structure which can make the inside of the apparatus hard to be seen from the outside without deterioration of light distribution, and is applicable to illumination apparatuses having an optical member utilizing total reflection. The illumination apparatus comprises a light-emitting tube extending in a first direction; and an optical member including an entrance portion where a luminous flux from the light-emitting tube enters and an exit portion where the luminous flux exits. The exit portion includes a plurality of surfaces arranged in a second direction orthogonal to the first direction, the surfaces being orthogonal or inclined with respect to the optical axis direction, and located at different positions in the optical axis direction.

Abstract: A mounting structure of an LED includes an LED unit including an LED, a lens element in front of the LED, and a collar around the lens element; a support member including a through-hole through which the lens element of the LED unit is exposed and an annular portion; an annular contacting surface formed on one of the annular portion as an annular concave surface and the collar as an annular convex surface; an annular contacting portion, formed on the other of the annular portion and the collar, wherein an orientation of the LED unit is adjusted by changing a relative contacting position between the annular contacting surface and the annular contacting portion; and a fixing device which fixes the LED unit to the support member while maintaining the contacting position of the annular contacting surface and the annular contacting portion after the adjustment.

Abstract: A multiparameter light is disclosed, which incorporates an LED (light emitting diode) tracking ring surrounding a main output lens. The LED tracking ring is capable of additive color mixing and in turn can simulate the color of the main projected light projecting from the main output aperture or output lens of the multiparameter light.

Abstract: A multiparameter light is disclosed, which incorporates an LED (light emitting diode) tracking ring surrounding a main output lens. The LED tracking ring is capable of additive color mixing and in turn can simulate the color of the main projected light projecting from the main output aperture or output lens of the multiparameter light.