Microminiature laser linear module

Abstract

The invention relates to a miniature laser linear module, and the module comprises a heat dissipation seat, wherein a fixed frame is formed above the heat dissipation seat, and a plurality of pins arearranged below the heat dissipation seat; a laser diode crystal grain which is arranged on the fixed frame; a sealing cover which seals the heat dissipation base, wherein a containing groove is formed in the sealing cover, a light outlet window is formed in the sealing cover, the light outlet window is located in front of the containing groove, the containing groove is communicated with the lightoutlet window, and the positions of the laser diode crystal grains correspond to the positions of the containing groove and the light outlet window; a cylindrical lens which is arranged in the accommodating groove and is provided with a first surface and a second surface on the opposite side, so that the first surface faces the laser diode crystal grain at a first micro distance, and the second surface faces the light emitting window at a second micro distance; therefore, the laser diode crystal grain excites a laser light source to the cylindrical lens, the laser light source is in an elliptical cone shape to form a light source angle, and the light source angle is gradually collimated after passing through the first surface of the cylindrical lens to the second surface of the cylindrical lens, so that the laser light source can be converted into a linear light source.

Description

technical field [0001] The invention relates to a miniature laser line module, which can miniaturize the volume of the laser line module. Background technique [0002] Such as Figure 1A As shown, China Taiwan Patent I364148 is disclosed, which is a laser level adjustment mechanism 10, including: a hollow cylinder 11; a laser diode 12 installed inside the first edge of the hollow cylinder 11; a focusing mirror 13 , is installed inside the hollow cylinder 11 relative to the laser diode 12 by means of a focusing mirror seat 131, and is fixed by a focusing mirror pressure ring 132; an adjusting collar 14 is coaxially connected to the laser diode 12 by a fulcrum The second end edge of the hollow cylinder 11; a cylindrical mirror 15 is installed on the adjustment collar 14 by a cylindrical mirror holder 151, and the cylindrical mirror holder 151 is fitted and fixed on the adjustment collar 14, and the cylindrical mirror holder The structure of 151 protrudes from a hollow fitting...

AI Technical Summary

Problems solved by technology

[0004] However, the laser level adjustment mechanism 10 uses the laser light source (L 11 ) to the cylindrical mirror 15 through the focusing mirror 13, and the laser light source (L 11 ) optical path is secondary optics, also the light source angle (θ 1 ) must be greater than 120°, so that the linear light source (L 12 ) cannot be narrowed, and the fixing of the relative distance between the laser diode 12, the focusing mirror 13, the cylindrical mirror 15 and the light outlet 162 requires many parts to be assembled, resulting in a bulky

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