US20230218159A1 ABSTRACT An apparatus for vision testing comprises a visual test unit (VTU) configured to receive a patients face and perform the vision test on the patient. The VTU includes an internal display configured to generate a light stimulus and a gaze sensor configured to track the eye of the patient. In one aspect, a plurality of VTUs form a...

US11627854B2 ABSTRACT A docking station for a robotic cleaner may include a housing, at least one charging contact coupled to the housing, and at least three optical emitters disposed within the housing. The at least three optical emitters may include a first optical emitter configured to generate a first optical signal within a first field of emission, a second optical...

US 9239237 B2 ABSTRACT A system for quickly aligning a test optic with various com-ponents of an optical metrology tool. A collimated target is presented to a beamsplitting reference surface located on a positioning system for holding and manipulating the test optic. Video images of the target and its reflection from the reference surface are displayed for analysis and visualization...

US 9282325 B2 ABSTRACT Apparatus for evaluating optical components and systems that uses a precision compact mirror support structure to present to an optical system or electro-optical system ( e.g., a camera) multiple images of at least one optical evaluation target over a wide field to allow assessment of the perfor- mance or alignm ent of the optical or electro-optical...

ABSTRACT An imaging assembly for use in a medical imaging device such as an endoscope or the like. In one embodiment, the imaging assembly includes a transparent distal cap that is shaped to receive an image sensor insert. The image sensor insert has a cooling channel that supplies a cooling liquid or gas to one or more illumination sources. Publication number...

ABSTRACT A rear projection monitor having a housing with reduced depth is disclosed. Images produced by liquid crystal active matrices are illuminated by a light source. The images are enlarged and projected by a projection lens having a large rear focus. A mirror reflects the projected images onto a viewing screen. The mirror is positioned between 36 in relation to...

ABSTRACT A cylindrical lens for coupling light from a line of emitting facets of laser diodes to a line of entrance faces of respective fiber waveguides. The lens is biaspheric, i.e., it includes two aspheric refractive surfaces which, in planes transverse to the lens axis, have (curvatures that are other than of a conic in cross-section. The surfaces are shaped...

ABSTRACT A system for the automatic measurement of parameters of optical elements such as radii of curvature, thickness, power, index of refraction, and focal length including the radii of curvature of convex or concave optical surfaces such as those of lenses, molds, lathe turned optics, inserts, ball bearings or micro-optics. The system includes a computer for control, operator interfacing, and...

ABSTRACT A system for the automatic measurement of radius of curvature of convex or concave optical surfaces such as those of lenses, molds, inserts, ball bearings or micro-optics. The system includes an 80286 based AT computer for control, operator interface and analysis along with an optical head for providing a signal from which radii can be calculated. Publication number US5280336...