Indicia readers may be configured with two illumination light sources: a primary light source for illuminating primary indicia (e.g., a barcode) and a secondary ultraviolet (UV) light source for revealing secondary indicia (e.g., UV fluorescent watermarks) that are used to protect against counterfei
Indicia readers may be configured with two illumination light sources: a primary light source for illuminating primary indicia (e.g., a barcode) and a secondary ultraviolet (UV) light source for revealing secondary indicia (e.g., UV fluorescent watermarks) that are used to protect against counterfeit and fraud. Ultraviolet light can be harmful. The present invention embraces methods and a device for controlling the secondary UV light source to limit UV exposure. When an exposure risks is detected, the UV light source is deactivated.
대표청구항▼
1. A computer-implemented method for controlling an indicia reader's illumination, the method comprising: activating a primary light source to illuminate a primary indicia on an item;scanning the item's primary indicia with the first light source to produce primary-indicia information;classifying th
1. A computer-implemented method for controlling an indicia reader's illumination, the method comprising: activating a primary light source to illuminate a primary indicia on an item;scanning the item's primary indicia with the first light source to produce primary-indicia information;classifying the item based on the primary-indicia information;comparing the item's class to classes stored in a memory;if the item's class matches at least one of the classes stored in the memory, then activating a secondary ultra-violet (UV) light source to illuminate a secondary indicia; anddeactivating the secondary UV light source if: (i) an exposure risk to the secondary UV light source is detected, or(ii) the secondary indicia is scanned with the secondary UV light source to produce secondary-indicia information. 2. The method according to claim 1, wherein the exposure risk comprises the expiration of a time-period. 3. The method according to claim 1, wherein the exposure risk comprises the detection of a particular object in the indicia reader's field of view. 4. The method according to claim 3, wherein the particular object is a human or human body part. 5. The method according to claim 4, wherein the human body part is an eye. 6. The method according to claim 1, wherein the exposure risk comprises the detection of a particular substance in the indicia reader's field of view. 7. The method according to claim 1, wherein the exposure risk comprises the detection of a particular behavior in the indicia reader's field of view. 8. The method according to claim 7, wherein the particular behavior comprises the item leaving the indicia reader's field of view. 9. The method according to claim 1, wherein the indicia reader is a hand-held imaging scanner or fixed-mount imaging scanner. 10. The method according to claim 1, wherein the item is an identification document. 11. The method according to claim 1, wherein the secondary indicia is a security mark to prove the item's authenticity. 12. The method according to claim 1, wherein the secondary indicia is visible when illuminated by the secondary UV light source but is otherwise invisible. 13. The method according to claim 1, wherein the primary light source is a visible light source and the primary indicia is visible under normal lighting conditions. 14. The method according to claim 1, wherein the primary indicia is a barcode. 15. A computer-implemented method for limiting ultra-violet (UV) light exposure from an indicia reader configured to read UV sensitive security marks, the method comprising: scanning an item with a primary light source of an indicia reader to obtain indicia information pertaining to the item;determining at least in part from the indicia information that the item has one or more UV-sensitive security marks;activating a UV light source of the indicia reader to read the UV-sensitive security marks; andif a UV exposure risk is detected by the indicia reader, then deactivating the UV light source. 16. The method according to claim 15, wherein the UV exposure risk comprises potential UV exposure of (i) a human body part or (ii) an object/substance that is adversely affected by UV light. 17. The method according to claim 15, wherein the UV exposure risk comprises detecting that the item is no longer visible in the indicia reader's field of view. 18. The method according to claim 15, wherein after the UV light source is activated: scanning at least one UV-sensitive security mark, andrecording the at least one UV-sensitive security mark for further processing. 19. The method according to claim 18, wherein the UV exposure risk comprises an expiration of a time-period in which no security marks have been scanned and recorded. 20. An imaging indicia scanner, comprising: a camera for capturing images of a field of view;a primary illumination subsystem for illuminating the field of view to enable primary indicia scanning;a secondary ultra-violet (UV) illumination subsystem for illuminating the field of view to enable UV-sensitive indicia scanning;a memory for storing software and a database, wherein the database comprises information corresponding to items that require UV-sensitive indicia scanning;a processor communicatively coupled to the camera, the primary illumination subsystem, the secondary UV illumination subsystem, and the memory, the processor configured by software to:activate the primary illumination subsystem and the camera when triggered by a user;scan the primary indicia with the primary illumination subsystem to produce primary indicia information;compare the primary indicia information to the database;activate the secondary UV illumination subsystem if the primary indicia information matches at least a portion of the database; anddeactivate the secondary UV illumination subsystem after (i) the UV-sensitive indicia have been scanned with the secondary UV illumination subsystem, (ii) an exposure risk to the secondary UV illumination subsystem has been detected, or (iii) a time period, in which no UV-sensitive indicia have been scanned and no exposure risks to the secondary UV illumination subsystem have been detected, has expired.
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