Optical scanner

Abstract

The optical scanner is suitable for scanning vertical object. The optical scanner consists of mainly one scanning body, one focusing unit and one scanning module. The scanning body has one transparent window in the top; the focusing unit consists of one arm with one end connected to the scanning body, one reflector and one lens configured on the arm; and the scanning module located inside the scanning body consists of one casing with one light cone opening, one lens and one photosensitive element inside the casing. The imaging light of vertical object may be focused via the focusing unit to the transparent window, made to enter the scanning module via the light cone opening and finally refracted by the lens to image on the photosensitive element.

Description

technical field [0001] The present invention relates to an optical scanner, and more particularly to an optical scanner suitable for scanning an upright object. Background technique [0002] Generally, there are always blackboards or whiteboards in conference rooms or classrooms, and the lecturer uses chalk or oil (water) pens to write text or draw graphics on the blackboard or whiteboard for presentations or teaching courses. Blackboards and whiteboards have a limited range of writing. When the writing area is covered with text or graphics, the speaker needs to use a blackboard eraser to erase the original written data, and then write new data. However, this kind of blackboard or whiteboard is It has the disadvantage of being unable to store the written data, so an electronic whiteboard has been developed, which can transfer the data written each time to fax paper, and provide the lecturer or listener in the form of paper. data storage. [0003] However, this kind of elec...

AI Technical Summary

Problems solved by technology

[0002] Generally, there are always blackboards or whiteboards in meeting rooms or classrooms, and the lecturer uses chalk or oil (water) pens to write text or draw graphics on the blackboard or whiteboard for presentations or teaching courses. Blackboards and whiteboards have a limited range of writing. When the writing area is covered with text or graphics, the lecturer needs to use a blackboard eraser to erase the original written data and then write new data. However, such blackboards or whiteboards are It has the disadvantage of being unable to store the written data, so an electronic whiteboard has been developed at present, which can transfer the data written each time to fax paper, and provide the lecturer or listener in the form of paper. data storage

[0003] However, this kind of electronic whiteboard is expensive, bulky, and difficult to carry. In addition, because it is stored in the form of paper, its storage time is short and it is easily damaged. When there is a lot of data, the number of sheets transferred to fax paper is small. It also increases relatively, which cannot cope with the current trend towards paperless

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