Hand Held Products, Inc.

Welch Allyn Data Collection, Inc.

Welch Allyn, Inc.

Vivian Loomis Hunter

Melvin D McCall

Charles Paul Barber

Robert J Hennick

William H Havens

Colleen P Gannon

Michael Allan Ehrhart

Eric C Coleman

Eric D Schwartz

Robert C Gardiner

Edward B Hubben

Thomas Ruhlman

Brian L Jovanovski

Gerard Frederick Beckhusen

Carl W Gerst, Iii

Bruce L Hahn

Chen Feng

Ynjiun P Wang

Edward C Bremer

Donald Anderson

David L Kellner

Robert C Hinkley

Dennis W McEnery

Michael P Lacey

Brian L Jovanvoski

James L Canale

A vision screening device includes an image capture component. The vision screening device displays a chromatic aberration, captures an optical image using the image capture component, and estimates a refractive error based on the optical image.

Eye accommodation control

An apparatus for use in optical reading can comprise an image sensor and a circuit board, and can further comprise a support assembly. An apparatus for use in optical reading can also comprise a light source and imaging optics.

Image sensor based optical reader

Embodiments of the present invention comprise an indicia reading terminal including a focus element that extends the range of focus distances at which the indicia reading terminal can decode decodable indicia. In one embodiment, the focus element comprises a variable form element and a variable position element, the combination of which causes an image distance that can change in accordance with a separation distance between these two elements. The focus element can comprise an actuator, e.g., a piezoelectric actuator, which can be coupled to the variable position element in a manner that can cause the variable position element to deform the variable form element, and in one example, the deformation changes the focal length of the variable form element.

Indicia reading terminal including focus element with expanded range of focus distances

There is set forth herein an optical reader for reading target indicia. The said optical reader in one embodiment can comprise an imaging subsystem including an image sensor and a lens assembly for focusing light on said image sensor. The optical reader in one embodiment can comprise a control circuit in communication with said imaging subsystem. The optical reader in one embodiment can comprise an illumination subsystem in communication with a control circuit. The illumination subsystem in one embodiment can comprise at least one multiple color-emitting light source. The at least one multiple color-emitting light source in one embodiment can comprise at least two independently drivable light emitting elements.

There is described an optical assembly. In one aspect, the optical assembly can be used in an optical reader. In another aspect, the optical assembly can include a support for supporting various components.

Image sensor assembly for optical reader

An optical reader can include an image sensor. In one embodiment an optical reader can be configured to have different operating modes, the different operating modes optimizing the reader for reading different indicia. In another embodiment an optical reader can comprise a multiple color emitting light source. In another embodiment an optical reader can be provided in a specialized form factor including an enlarged head portion and an elongated body portion extending from the head portion.

An optical reading device comprising a sensor array having pixels which are exposed to an image; an illumination generator for illuminating the image with light, the illumination generator being configured to have a front face; a housing for housing the sensor array, aiming pattern generator and illumination generator for hand held operation, the housing having a window disposed between the illumination generator and the image for permitting transmission of the illuminating light; a lens for focusing light to the sensor array, wherein the lens protrudes through the illumination generator; a gasket disposed around the lens for blocking light reflected off of the window from reaching the sensor array.

Optical reading device with light blocking gasket

The present invention relates to an apparatus packaging components of an optical reading device which may include illumination optical elements, receive optical elements, and signal processing elements. In one embodiment a single circuit board can carry multiple elements such as an image sensor together with illumination elements. In one embodiment, a control circuit can be provided that is coupled to a light source and an image sensor.

Imaging module for optical reader

An imaging module can comprise an image sensor and first and second circuit boards. A support assembly can also be included in the imaging module. Further included in the imaging module can be a support post.

Imaging module comprising support post for optical reader

An imaging module in one embodiment includes at least one multiple color emitting light source comprising a plurality of different colored LED dies each independently driveable so that the overall color emitted by the light source can be controlled and varied. The multiple color emitting light source can be controlled so that the color emitted by the light source is optimized for imaging or reading in a present application environment of the module. Further, the module can be configured so that control of the multiple color emitting light source automatically varies depending on a sensed condition, such a color present in a field of view of the module, the distance of the module to a target, and/or a predetermined criteria being met so that feedback is provided to a user. The module in a further aspect can include illumination light sources and aiming light sources which project light in different wavelength emission bands.

Optical reader comprising multiple color illumination

These and other objects of the present invention are attained by apparatus for adjusting the position of a line of light in barcode space that includes a support frame having a rear housing containing a solid state imager and a pair of support arms extending forwardly from the front of the housing. An imaging lens is mounted between the arms for focusing an image of a target in barcode space upon the solid state imager along the optical axis of the imaging lens. Illuminating LEDs are mounted on either side of the imaging lens for illuminating the target. The illumination is passed through a pair of cylindrical lenses that are adjustably mounted upon the distal ends of the arm so that the light can be selectively positioned in barcode space.

Adjustable illumination system for a barcode scanner

The invention is optical assembly for use in a barcode reader that includes a frame having a rear housing and a pair of arms outwardly extended from the housing. An optical card containing an imaging lens is slidably received in a rear guideway situated between the arms. An aperture card is slidably received in a front guideway situated between the arms in front of the lens. Lamp support brackets are also mounted to either side of the arms. Each bracket contains a pair of LEDs that are aligned in coplanar relation with the imaging lens. A cylindrical lens is mounted in front of the lamp support brackets within the arms of the frame to magnify and focus the illumination from the LED upon a target in barcode space. A horizontally extended field stop aperture is positioned in front of each LED.

Optical assembly for barcode scanner

The present invention is an imaging module including various optical components and a circuit board, which, in one embodiment, carries essentially an entirety of illumination and aiming LEDs of the module. The module includes a combination of features which result in the size of the module being reduced. The module may comprise a refractive optic diffuser plate manufactured using a textured surface mold.

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Baldwinsville, NY, United States of America

Vivian Loomis Hunter