Light source module allowing differential control according to distance to subject and method for controlling the same
AssigneeNamuga Co., Ltd.
InventorsJun Youb Lee, Young Gyu Kang, Jeong Hwa Seo
Life of this patent
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Abstract
One embodiment may provide a light source module including: a light source part including at least one vertical cavity surface-emitting laser, which is configured to transfer light through N (N being a natural number equal to or greater than 1) apertures; at least one collimator lens through which light emitted from the light source part passes; and a driving device configured to make the collimator lens move, wherein the at least one vertical cavity surface-emitting laser comprises divided regions, and an intensity of a beam is controlled according to a predetermined far-distance mode or near-distance mode.
Claims18
A light source module comprising:
- a light source comprising a plurality of light source elements;
- and
- an optical device through which light emitted by the light source passes,
- wherein the optical device is divided into a plurality of regions, at least one micro-lens array (MLA) is disposed in each of the plurality of regions, the light source elements of the light source respectively comprise independent regions, light transferred from the independent regions of the light source elements passes through the optical device and has individual fields of view (FOV), and the intensity of the light transferred from the light source elements is adjustable,
- wherein a number of the plurality of light source elements to be turned on in a near-distance mode and a far-distance mode are different.
A method for operating a light source module comprising a light source comprising a plurality of light source elements and an optical device through which light emitted by the light source passes, the method comprising:
- setting an operation mode of the light source module;
- and
- adjusting intensities of the plurality of light source elements according to the operation mode,
- wherein the operation mode is a near-distance mode, only some of the plurality of light source elements operate, and an intensity of a current to be input is adjusted in order to adjust intensities of the plurality of light source elements,
- wherein the optical device is divided into a plurality of regions, at least one micro-lens array (MLA) is disposed in each of the plurality of regions, the light source elements of the light source respectively comprise independent regions, light transferred from the independent regions of the light source elements passes through the optical device and has individual fields of view (FOV), and the intensity of the light transferred from the light source elements is adjustable.
A method for operating a light source module comprising a light source comprising a plurality of light source elements and an optical device through which light emitted by the light source passes, the method comprising:
- setting an operation mode of the light source module;
- and
- adjusting intensities of the plurality of light source elements according to the operation mode,
- wherein the operation mode is a far-distance mode, and the plurality of light source elements operate according to a predetermined rule,
- wherein the optical device is divided into a plurality of regions, at least one micro-lens array (MLA) is disposed in each of the plurality of regions, the light source elements of the light source respectively comprise independent regions, light transferred from the independent regions of the light source elements passes through the optical device and has individual fields of view (FOV), and the intensity of the light transferred from the light source elements is adjustable.
Dependencies are inferred from the claim text.