OPTICAL POINTING APPARATUS AND PORTABLE ELECTRONIC APPARATUS WITH THE SAME
First Claim
1. An optical pointing device comprising:
- an infrared (IR) source emitting an infrared ray;
a cover having a cover plate transmitting the infrared ray so that the infrared ray emitted from the IR source reach an subject out of the cover plate and a cover frame coupled with the cover plate for supporting the cover plate;
an optical unit which is provided in the cover and on which the infrared ray reflected from the subject is incident; and
an optical sensor sensing the infrared ray incident thereon from the optical unit;
wherein the cover plate comprises a base coupled to the cover frame, and an IR band-pass filter layer provided on one side of the base.
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Accused Products
Abstract
An optical pointing device and a portable electronic device having the same, in which external noise light and/or noise light due to diffused reflection or the like is prevented from being introduced into an optical sensor enhancing precision of operation and providing a housing with improved structure. The device includes an infrared source; a cover having a cover plate transmitting infrared rays from the IR source for reaching a subject out of the cover plate and a cover frame that supports the cover plate; an optical unit in the cover and on which the infrared ray reflected from the subject is incident; and an optical sensor sensing the infrared ray incident thereon from the optical unit; the cover plate has a base coupled to the cover frame, and an IR band-pass filter layer provided on one side of the base.
11 Citations
20 Claims
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1. An optical pointing device comprising:
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an infrared (IR) source emitting an infrared ray; a cover having a cover plate transmitting the infrared ray so that the infrared ray emitted from the IR source reach an subject out of the cover plate and a cover frame coupled with the cover plate for supporting the cover plate; an optical unit which is provided in the cover and on which the infrared ray reflected from the subject is incident; and an optical sensor sensing the infrared ray incident thereon from the optical unit; wherein the cover plate comprises a base coupled to the cover frame, and an IR band-pass filter layer provided on one side of the base. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An optical pointing device comprising:
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an infrared (IR) source emitting an infrared ray; a cover comprising a cover plate transmitting the infrared ray so that the infrared ray emitted from the IR source reach an subject out of the cover plate, wherein the cover plate is a mirror making an image of an external subject or color plate having a color; an optical unit which is provided in the cover and on which the infrared ray reflected from the subject is incident; and an optical sensor sensing the infrared ray incident thereon from the optical unit; wherein the cover plate comprises a base and an IR band-pass filter layer provided on one side of the base. - View Dependent Claims (12, 13, 14, 15, 16)
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17. An optical pointing device comprising:
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an infrared (IR) source emitting infrared ray; a cover comprising a cover plate transmitting the infrared ray so that the infrared ray emitted from the IR source reach an subject out of the cover plate; an optical unit which is provided in the cover and on which the infrared ray reflected from the subject is incident; and an optical sensor sensing the infrared ray incident thereon from the optical unit; wherein the cover plate comprises a base, an IR band-pass filter layer provided on one side of the base, and at least one groove or at least one projection formed on a handling surface of the cover plate on which the subject is contacted. - View Dependent Claims (18, 19, 20)
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Specification