Optical reading device with light blocking gasket

• US 20070228306A1
• Filed: 03/31/2006
• Published: 10/04/2007
• Est. Priority Date: 03/31/2006
• Status: Active Grant

• Current Assignee: Hand Held Products Incorporated (Honeywell International Inc.)
• Original Assignee: Hand Held Products Incorporated (Honeywell International Inc.)
• Inventors: Hunter, Vivian, Gannon, Colleen
• Granted Patent: US 7,705,288 B2
• Time in Patent Office: Days
• US Class Current: 250/555
• CPC Class Codes: G06K 7/10722 Photodetector array or CCD scanning
• CPC Class Codes: G06K 7/10732 Light sources

Abstract

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.

Claims

1. 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 preventing passage of light between the lens and the illumination generator.

2. An optical reading device in accordance with claim 1, wherein the generator is comprised of LEDs disposed behind a light pipe.

3. An optical reading device in accordance with claim 1, wherein the generator comprises a flat face.

4. An optical reading device in accordance with claim 1, wherein the generator comprises a flat semitransparent face.

5. An optical reading device in accordance with claim 1, wherein the gasket is comprised of a thermoplastic elastomer.

6. An optical reading device in accordance with claim 1, wherein the gasket is flanged.

7. 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.

8. An optical reading device in accordance with claim 7, wherein the generator is comprised of LEDs disposed behind a light pipe.

9. An optical reading device in accordance with claim 7, wherein the generator comprises a flat face.

10. An optical reading device in accordance with claim 7, wherein the generator comprises a flat semitransparent face.

11. An optical reading device in accordance with claim 7, wherein the gasket is comprised of a thermoplastic elastomer.

12. An optical reading device in accordance with claim 7, wherein the gasket is flanged.