Light guiding apparatus for optical pen
First Claim
1. A light guiding apparatus of optical pen, said optical pen comprising a light source and an optical sensor, the light source emitting light to shine on a predetermined location of an outlying surface, and the optical sensor capturing a reflected imaging light from said predetermined location;
- the light guiding apparatus comprising;
a light guide made of light conducting material and consisting of a light-inlet and a light-outlet, the light-inlet being adjacent to the light source, the light-outlet being adjacent to the predetermined location, the light rays emitted from light source entering the light guide through the light-inlet and exiting from the light-outlet.
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Accused Products
Abstract
A light guiding apparatus for optical pen comprising a light source, an optical sensor and a light guide is disclosed. The light source emits light towards an outlying surface where the optical sensor captures a reflected imaging light that travels in a direction defined with a captured light. The light guide is made of light conducting material and consists of a light-inlet, an extension member, and a light-outlet. The light-inlet is disposed near the light source. The extension member extends a predetermined distance from the light-inlet essentially along a direction parallel and opposite to the captured light. The light-outlet is situated at an end of extension member farther away from the light-inlet. The light emitted by the light source is first guided by the light guide and then illuminates on the outlying surface at an inclined angle ranged between 21˜50 degrees to enhance the contrast and recognizability of reflected imaging light.
50 Citations
20 Claims
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1. A light guiding apparatus of optical pen, said optical pen comprising a light source and an optical sensor, the light source emitting light to shine on a predetermined location of an outlying surface, and the optical sensor capturing a reflected imaging light from said predetermined location;
- the light guiding apparatus comprising;
a light guide made of light conducting material and consisting of a light-inlet and a light-outlet, the light-inlet being adjacent to the light source, the light-outlet being adjacent to the predetermined location, the light rays emitted from light source entering the light guide through the light-inlet and exiting from the light-outlet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- the light guiding apparatus comprising;
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13. A light guiding apparatus of optical pen, said optical pen comprising a light source and an optical sensor, the light source emitting light to shine on a predetermined location of an outlying surface, and the optical sensor capturing a reflected imaging light from said predetermined location, and the reflected imaging light traveling in a direction defined with a captured light;
- the light guiding apparatus comprising;
a light guide made of light conducting material and consisting of a light-inlet and a light-outlet, the light-inlet being adjacent to the light source, the light-outlet being adjacent to the predetermined location, the light rays emitted from light source entering the light guide through the light-inlet and exiting from the light-outlet;
wherein the angle intersecting the light rays emitted from the light-outlet and the outlying surface ranges between 21 and 50 degrees. - View Dependent Claims (14, 15, 16)
- the light guiding apparatus comprising;
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17. A light guiding apparatus of optical pen, said optical pen comprising a light source and an optical sensor, the light source emiting light, from which the optical sensor capturing a reflected imaging light, and the reflected imaging light traveling in a direction defined with a captured light;
- the light guiding apparatus comprising;
a light guide made of light conducting material and consisting of a light-inlet, a reflective plane and a light-outlet, the light-inlet being adjacent to the light source, the reflective plane and the light-outlet being situated at one end of light guide farther away from the light-inlet and opposite each other, the light rays emitted from light source entering the light guide through the light-inlet and exiting from the light-outlet after reflection by the reflected plane;
wherein the reflective plane is arranged at such an angle that after the light emitted from light source enters the light guide through the light-inlet, it shines on the reflective plane at a relatively smaller angle, and is thereby totally reflected by the reflective plane and shoots at the light-outlet at a relatively larger angle, such that the light exits the light guide from the light-outlet. - View Dependent Claims (18, 19, 20)
- the light guiding apparatus comprising;
Specification