Sensing module and laser device
AssigneeLecc Technology Co., Ltd.
InventorHSIN-CHIH TUNG
Life of this patent
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Abstract
Disclosure is related to a sensing module and a Laser device using the sensing module. The sensing module is adapted to a Laser module. The sensing module essentially includes a beam splitter and a photo sensor. This beam splitter is disposed at an optical-axis path of laser beam. The splitter is used to split the laser beam into a transmissive beam and a reflective beam. The photo sensor however is disposed apart from the optical-axis path of the original laser beam. The photo sensor converts the sensed photo signals into electrical signals which are as feedback signals to the laser module.
Claims11
A sensing module adapted to be mounted to a laser module, comprising:
- a beam splitter, disposed at an optical-axis path of a laser beam, used for the laser module to split the laser beam into a transmissive beam and a reflective beam;
- and
- a photo sensor, disposed apart from the optical-axis path of the laser beam, wherein the photo sensor senses the laser beam and converts sensed photo signals into electrical signals, for generating a feedback signal to the laser module;
- wherein the laser beam generated by the laser module is unobstructedly and directly projected onto the beam splitter to form the transmissive beam and the reflective beam.
A laser device, comprising:
- a laser module, having:
- a light-emitting unit, used to emit a laser beam;
- a control unit, electrically connected with the light-emitting unit, used to adjust intensity of the laser beam;
- and
- a lens, used to shape the laser beam;
- and
- a sensing module, having:
- a beam splitter, disposed at an optical-axis path of the laser beam, used to split the laser beam into a transmissive beam and a reflective beam;
- and
- a photo sensor, disposed apart from the optical-axis path of the laser beam, used to sense the laser beam and convert sensed photo signals into electrical signals, so as to generate a feedback signal;
- wherein the laser beam generated by the laser module is unobstructedly and directly projected onto the beam splitter to form the transmissive beam and the reflective beam;
- wherein, the control unit of the laser module adjusts laser intensity in response to the feedback signal.
A sensing module adapted to be mounted to a laser module, comprising:
- a beam splitter, disposed at an optical-axis path of a laser beam, used for the laser module to split the laser beam into a transmissive beam and a reflective beam;
- and
- a photo sensor, disposed apart from the optical-axis path of the laser beam, wherein the photo sensor senses the laser beam and converts sensed photo signals into electrical signals, for generating a feedback signal to the laser module;
- wherein the laser beam generated by the laser module is unobstructedly and directly projected onto the beam splitter to form the transmissive beam and the reflective beam;
- wherein the beam splitter includes two prisms and a beam-splitting coating between the two prisms for adjusting an intensity ratio of the transmissive beam and the reflective beam of the laser beam;
- wherein the sensing module is pluggable onto the laser module.
Dependencies are inferred from the claim text.