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742results about How to "Increase illumination" patented technology

Laser scanning digital camera with pupil periphery illumination and potential for multiply scattered light imaging

A portable, lightweight digital imaging device uses a slit scanning arrangement to obtain an image of the eye, in particular the retina. In at least one embodiment, a digital retinal imaging device includes an illumination source operable to produce a source beam, wherein the source beam defines an illumination pathway, a scanning mechanism operable to cause a scanning motion of the illumination pathway in one dimension with respect to a target, an optical element situated within the illumination pathway, the optical element operable to focus the illumination pathway into an illumination slit at a plane conjugate to the target, wherein the illumination slit is slit shaped, a first two dimensional detector array operable to detect illumination returning from the target and acquire one or more data sets from the detected illumination, wherein the returning illumination defines a detection pathway, and a shaping mechanism positioned within the illumination pathway, wherein the shaping mechanism shapes the source beam into at least one arc at a plane conjugate to the pupil. In at least one exemplary embodiment, the digital retinal imaging device is operable to minimize at least one aberration from the optical element or an unwanted reflection from the target or a reflection from a device.
Owner:INDIANA UNIV RES & TECH CORP

Laser scanning digital camera with simplified optics and potential for multiply scattered light imaging

A portable, lightweight digital imaging device uses a slit scanning arrangement to obtain an image of the eye, in particular the retina. The scanning arrangement reduces the amount of target area illuminated at a time, thereby reducing the amount of unwanted light scatter and providing a higher contrast image. A detection arrangement receives the light remitted from the retinal plane and produces an image. The device is operable under battery power and ambient light conditions, such as outdoor or room lighting. The device is noncontact and does not require that the pupil of the eye be dilated with drops. The device can be used by personnel who do not have specialized training in the eye, such as emergency personnel, pediatricians, general practitioners, or volunteer or otherwise unskilled screening personnel. Images can be viewed in the device or transmitted to a remote location. The device can also be used to provide images of the anterior segment of the eye, or other small structures. Visible wavelength light is not required to produce images of most important structures in the retina, thereby increasing the comfort and safety of the device. Flexible and moderate cost confocal and fluorescent imaging, multiply scattered light images, and image sharpening are further functionalities possible with the device.
Owner:INDIANA UNIV RES & TECH CORP

Laser scanning digital camera with simplified optics and potential for multiply scattered light imaging

A portable, lightweight digital imaging device uses a slit scanning arrangement to obtain an image of the eye, in particular the retina. The scanning arrangement reduces the amount of target area illuminated at a time, thereby reducing the amount of unwanted light scatter and providing a higher contrast image. A detection arrangement receives the light remitted from the retinal plane and produces an image. The device is operable under battery power and ambient light conditions, such as outdoor or room lighting. The device is noncontact and does not require that the pupil of the eye be dilated with drops. The device can be used by personnel who do not have specialized training in the eye, such as emergency personnel, pediatricians, general practitioners, or volunteer or otherwise unskilled screening personnel. Images can be viewed in the device or transmitted to a remote location. The device can also be used to provide images of the anterior segment of the eye, or other small structures. Visible wavelength light is not required to produce images of most important structures in the retina, thereby increasing the comfort and safety of the device. Flexible and moderate cost confocal and fluorescent imaging, multiply scattered light images, and image sharpening are further functionalities possible with the device.
Owner:INDIANA UNIV RES & TECH CORP

Full-angle high-luminance light-emitting lamp filament bulb and manufacturing method thereof

The invention provides a full-angle high-luminance light-emitting lamp filament bulb and a manufacturing method of the full-angle high-luminance light-emitting lamp filament bulb. The full-angle high-luminance light-emitting lamp filament bulb comprises full-angle light-emitting lamp filaments, a core pillar, an LED light-emitting substrate, a lampshade, heat conduction gas and a lamp holder. A horn-shaped opening is formed in one end of the core pillar so that the core pillar and the lampshade can form a sealed bulb body, and the bulb body is provided with a core pillar exhaust pipe and filled with the heat conduction gas. The core pillar stretches into the lampshade and is connected with one or more full-angle light-emitting lamp filaments through a conduction leading-out wire or conduction leading-out wires, one end of each full-angle light-emitting lamp filament is connected with the corresponding conduction leading-out wire on the core pillar, and the other end of the ach full-angle light-emitting lamp filament is connected with the LED light-emitting substrate to form a loop. The full-angle light-emitting lamp filaments comprise a support and a light-emitting chip fixed to the surface of the support. The LED light-emitting substrate comprises a substrate body and a light-emitting chip arranged on the substrate, and a conduction layer is arranged on the substrate body and connected with an electrode of the light-emitting chip.
Owner:王志根

Laser scanning digital camera with pupil periphery illumination and potential for multiply scattered light imaging

A portable, lightweight digital imaging device uses a slit scanning arrangement to obtain an image of the eye, in particular the retina. In at least one embodiment, a digital retinal imaging device includes an illumination source operable to produce a source beam, wherein the source beam defines an illumination pathway, a scanning mechanism operable to cause a scanning motion of the illumination pathway in one dimension with respect to a target, an optical element situated within the illumination pathway, the optical element operable to focus the illumination pathway into an illumination slit at a plane conjugate to the target, wherein the illumination slit is slit shaped, a first two dimensional detector array operable to detect illumination returning from the target and acquire one or more data sets from the detected illumination, wherein the returning illumination defines a detection pathway, and a shaping mechanism positioned within the illumination pathway, wherein the shaping mechanism shapes the source beam into at least one arc at a plane conjugate to the pupil. In at least one exemplary embodiment, the digital retinal imaging device is operable to minimize at least one aberration from the optical element or an unwanted reflection from the target or a reflection from a device.
Owner:INDIANA UNIV RES & TECH CORP
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