Optical inputting method, equipment and beam splitting lens module of the said equipment

Abstract

The invention is an optical input device, comprising casing, optical sensor component, light source and light splitting lens module, where the optical sensor component, light source and the light splitting lens module are placed in the casing, the light splitting lens module comprises prism, light splitter and lens, where the prism is located on the side of the outgoing light of the light source and the light splitter is located on the side of the outgoing light of the prism, and the lens is located on the side of the outgoing light of the light splitter. And the lens module can shooting more medium surface videos so as to make the optical input device able to be normally used on highlight surfaces (glass surface / marble surface / metal surface / transparent plastic surface / photo paper surface) and mottled surfaces.

Description

【Technical field】 [0001] The invention relates to the field of optical input devices. 【Background technique】 [0002] In the prior art, the lens module in an ordinary optical mouse can only capture images on colored and rough surfaces, and cannot be realized on high-gloss surfaces (such as: glass surface / marble surface / metal surface / transparent plastic surface / photo paper surface) and variegated surfaces, so that optical (wired and wireless) mice and other optical input devices cannot be captured on high-gloss surfaces (glass surface / marble surface / metal surface / transparent plastic surface / photo paper surface) It is very inconvenient for users to use it on medium surfaces such as variegated surfaces. [0003] Please refer to Fig. 1, it is the optical system of existing optical input device, and it comprises infrared light source 2, prism 32, lens 34 and optical sensor assembly 1, the light beam that the light emitted by infrared light source 2 is refracted by prism 32 is wi...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the lens module in an ordinary optical mouse can only capture images on colored and rough surfaces, and cannot be realized on high-gloss surfaces (such as: glass surface / marble surface / metal surface / transparent plastic surface / photo paper surface) and variegated surfaces, so that optical (wired and wireless) mice and other optical input devices cannot be captured on high-gloss surfaces (glass surface / marble surface / metal surface / transparent plastic surface / photo paper surface) It is used on medium surfaces such as variegated surfaces, which brings great inconvenience to users.

[0003] Please refer to Fig. 1, it is the optical system of existing optical input device, and it comprises infrared light source 2, prism 32, lens 34 and optical sensor assembly 1, the light beam that the light emitted by infrared light source 2 is refracted by prism 32 is with 22.50 The angle of degree directly shoots to the surface of the medium and produces the transmission point O1. In this way, if the height of the lens 34 to the surface of the medium has an error A, the phenomenon that the transmission point O1 deviates from the center of the lens will occur (the distance between the projection point O1 and the center of the lens The deviation is B), so that the optical sensing component reduces the ability to capture information on the surface of the medium.

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