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US 2019/0096865 A1Published application
Optical navigation module capable of performing lateral detection and adjusting tracking distance
AssigneePixart Imaging Inc.
InventorsSAI-MUN LEE, LYE-PIN CHU
Life of this patent
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Abstract
There is provided an optical navigation module including an optical package and a light reflective element. The optical package includes an image sensor which has a sensor surface. The light reflective element is configured to reflect light propagating parallel to the sensor surface to light propagating perpendicular to the sensor surface to impinge on the sensor surface thereby performing the lateral detection.
Claims20
An optical navigation module, comprising:
- an optical package having a package surface, and comprising
- an image sensor arranged on the package surface;
- a light emitting chip arranged on the package surface and configured to emit illumination light upward;
- and
- a reflective structure covering on the optical package and comprising:
- a detection plane;
- a detection opening at the detection plane;
- a first reflective portion having a first end configured to reflect incident light coming from the detection opening downward to impinge on the image sensor, and further having a second end connected to the detection opening;
- and
- a second reflective portion having a first end configured to reflect the illumination light emitted by the light emitting chip to go out the reflective structure via the detection opening, and further having a second end connected to the detection opening, wherein
- the first reflective portion extends in a first direction from the first end of the first reflective portion to the second end of the first reflective portion,
- the second reflective portion extends in a second direction from the first end of the second reflective portion to the second end of the second reflective portion, and
- the first direction is not parallel to the second direction.
10 more elements
An optical navigation module, comprising:
- a substrate;
- an optical package, comprising:
- an image sensor arranged upon the substrate;
- and
- a light emitting chip arranged upon the substrate;
- and
- a reflective structure covering on the optical package and comprising:
- a detection plane;
- a detection opening at the detection plane;
- a first reflective portion having a first end and a second end, wherein the first end of the first reflective portion is aligned with the image sensor and the second end of the first reflective portion connects to the detection opening;
- and
- a second reflective portion having a first end and a second end, wherein the first end of the second reflective portion is aligned with the light emitting chip and the second end of the second reflective portion connects to the detection opening, wherein
- the first reflective portion extends in a first direction from the first end of the first reflective portion to the second end of the first reflective portion,
- the second reflective portion extends in a second direction from the first end of the second reflective portion to the second end of the second reflective portion, and
- the first direction is not parallel to the second direction.
12 more elements
An optical navigation module, comprising:
- an optical package having a package surface, and comprising
- an image sensor arranged on the package surface;
- a light emitting chip arranged on the package surface and configured to emit illumination light upward;
- and
- a reflective structure covering on the optical package and comprising:
- a detection plane perpendicular to the package surface;
- a first detection opening and a second detection opening at the detection plane;
- a first reflective portion having a first end configured to reflect incident light coming from the first detection opening downward to impinge on the image sensor, and further having a second end connected to the first detection opening;
- and
- a second reflective portion having a first end configured to reflect the illumination light emitted by the light emitting chip to go out the reflective structure via the second detection opening, and further having a second end connected to the second detection opening, wherein
- the first reflective portion extends in a first direction from the first end of the first reflective portion to the second end of the first reflective portion,
- the second reflective portion extends in a second direction from the first end of the second reflective portion to the second end of the second reflective portion, and
- the first direction is not parallel to the second direction.
10 more elements
Dependencies are inferred from the claim text.