Side mounting optical navigation module
A technology of a navigation module and a light source, applied in the field of optical navigation modules, can solve the problems such as limitations imposed by the application of optical navigation modules.
Active Publication Date: 2013-01-09
CLOUD LIGHT TECH LTD
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Problems solved by technology
In conventional designs, the substrate-defined plane 710, light source emitting surface, and light sensor sensing surface typically face or are parallel to the module's tracking surface 711, which imposes constraints on the thickness of the light navigation module, which in turn The application of the optical navigation module imposes limitations
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[0024] Reference will now be made in detail to the preferred embodiment of the side-mounted light navigation module disclosed in this patent application, an example of which will also be provided in the following description. It will be apparent to those skilled in the relevant art that, for the sake of clarity, the aspects of the side-mounted light navigation module disclosed in this patent application are described in detail, although some features that are not particularly important to understanding the side-mounted light navigation module are not shown. Exemplary embodiment.
[0025] In addition, it should be understood that the side-mounted optical navigation module disclosed in this patent application is not limited to the precise embodiments described below, and those skilled in the art can make various Changes and modifications take effect. For example, elements and / or features of different illustrative embodiments may be combined with each other and / or substituted fo...
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An optical navigation module for receiving control from an object disposed on an operation plane is provided. The optical navigation module includes a substrate defining a base plane that is perpendicular to the operation plane; a light source installed on the base plane of the substrate and configured to emit light to a side of the substrate; an optical structure installed at the side of the substrate; a light sensor installed on the base plane of the substrate; a light shield installed on the base plane of the substrate spatially separating the light source and the light sensor so that light emitted by the light source is not directly shed on the light sensor, the light shield having an aperture formed thereon; and a tactile switch for executing a command installed at a side of the light source that is opposite to the side facing the operation plane. The optical structure is configured to guide the light emitted from the light source to the object so that at least a portion of the light scattered by the object passes to the light sensor through the aperture on the light shield and forms a light intensity pattern on the light sensor.
Description
technical field [0001] The present invention relates to an optical navigation module, and more particularly, to a side-mounted optical navigation module with reduced thickness and wide application. Background technique [0002] Optical navigation modules are a major component of consumer electronic devices that require user input through a GUI (Graphical User Interface). Such as Figure 7 As shown in , the key building blocks common to an optical navigation module are a light sensor 701, a light source 703, a light shield 705 disposed around the light sensor 701, an optical element 707, and a substrate 709 on which all of the above elements are mounted. In conventional designs, the substrate-defined plane 710, light source emitting surface, and light sensor sensing surface typically face or are parallel to the module's tracking surface 711, which imposes constraints on the thickness of the light navigation module, which in turn The application of the optical navigation modu...
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Login to View More IPC IPC(8): G06F3/03
CPCG06F3/0354G06F3/03G06F3/0304
Inventor 俞晓鸣洪伟弗兰西斯·G·甘博唐德杰
Owner CLOUD LIGHT TECH LTD