Invention Grant
US08596543B2 Indicia reading terminal including focus element with expanded range of focus distances
有权
标记读取终端包括聚焦元素,聚焦距离范围扩大
- Patent Title: Indicia reading terminal including focus element with expanded range of focus distances
- Patent Title (中): 标记读取终端包括聚焦元素,聚焦距离范围扩大
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Application No.: US12582216Application Date: 2009-10-20
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Publication No.: US08596543B2Publication Date: 2013-12-03
- Inventor: William H. Havens , Ynjiun P. Wang , Robert J. Hennick , Colleen Gannon , Donald Anderson , Vivian L. Hunter , Edward C. Bremer , Chen Feng
- Applicant: William H. Havens , Ynjiun P. Wang , Robert J. Hennick , Colleen Gannon , Donald Anderson , Vivian L. Hunter , Edward C. Bremer , Chen Feng
- Applicant Address: US SC Fort Mill
- Assignee: Hand Held Products, Inc.
- Current Assignee: Hand Held Products, Inc.
- Current Assignee Address: US SC Fort Mill
- Agency: Additon, Higgins, Pendleton & Ashe, P.A.
- Main IPC: G06K7/10
- IPC: G06K7/10

Abstract:
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.
Public/Granted literature
- US20110089245A1 INDICIA READING TERMINAL INCLUDING FOCUS ELEMENT WITH EXPANDED RANGE OF FOCUS DISTANCES Public/Granted day:2011-04-21
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