Patent ID: 9639730
Date: 2017-05-02
CPC Classifications: G06K

Claim:
1. An engine for a machine-readable symbol reader, the engine comprising: an image sensor having a front via which light is received by the image sensor and a rear opposed across the image sensor from the front; at least one optical component positioned in an optical path of the image sensor, the image sensor and the at least one optical component having a receiving optical axis and a depth of field; a single illumination source; and two optical components positioned relative to the illumination source to direct light emitted by the illumination source outward of the engine as a first beam and at least a second beam, the two optical components positioned entirely behind the rear of the image sensor, the first and the second beams each parallel to the receiving optical axis of the image sensor and the at least one optical component at least along the depth of field of the image sensor and the at least one optical component, and the first and the second beams opposed to one another across the receiving optical axis of the image sensor and the at least one optical component to provide a visible aiming indication when impinging on an object.