Passive illumination device
AssigneeIOSS Intelligente Optische Sensoren & Systeme GmbH
InventorsChristian Konz, Joachim Gaessler, Harald Richter
Life of this patent
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Abstract
A passive illumination device for use with at least one light source unit of an image receiver, in particular of a code reading device and/or code verification device, has at least one diffuser unit which is configured for converting light provided by the light source unit into at least substantially diffuse illumination light for an illumination of at least one illumination region and which comprises at least one diffuser element with at least one diffusion shell for a scattering of the light.
Claims17
A passive illumination device of a code reading device and/or code verification device, the passive illumination device being for use with at least one light source unit of an image receiver and comprising
- at least one diffuser unit which is configured for converting light provided by the light source unit into at least substantially diffuse illumination light for an illumination of at least one illumination region, the at least one diffuser unit comprising at least one diffuser element having at least one diffusion shell for a scattering of the light,
- wherein when viewed from the illumination region, the at least one diffusion shell has a concave shaping,
- wherein the diffuser unit comprises at least one optical element, which is configured to deflect light provided by at least one light source of the light source unit toward the illumination region,
- wherein the optical element is embodied as a beamsplitter cube,
- wherein the diffuser element comprises at least one receptacle for a form-fit holding of the optical element, and
- wherein the diffuser unit comprises at least one subregion that is configured to feed light provided by the light source into the optical element.
Dependencies are inferred from the claim text.