CN217739628U

CN217739628U - Light path system for outputting special-shaped light spots

Info

Publication number: CN217739628U
Application number: CN202221691403.1U
Authority: CN
Inventors: 肖向荣
Original assignee: Wuhan Songsheng Photoelectric Technology Co ltd
Current assignee: Wuhan Songsheng Photoelectric Technology Co ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-11-04
Anticipated expiration: 2032-06-29

Abstract

The utility model relates to an optical path system for outputting special-shaped light spots, which comprises a round optical fiber and a special-shaped optical fiber; the circular optical fiber has a first proximal end and a first distal end, light being input from the first proximal end of the circular optical fiber and output from the first distal end; the profiled optical fiber is provided with a second near end and a second far end, the second near end is connected with the first far end, light output from the first far end is input into the profiled optical fiber from the second near end, and a profiled light spot is output from the second far end; this application adopts circular optic fibre remote transmission, effectively reduces the cost of transportation to through the connection of two kinds of optic fibre, realize the effective output of heterotypic facula, guarantee the normal clear of follow-up laser service process.

Description

Light path system for outputting special-shaped light spots

Technical Field

The utility model relates to an optical structure technical field, concretely relates to an optical path system for exporting abnormal shape facula.

Background

The Mini LED is defined as: the LED device with the chip size between 50 and 200 mu m consists of a Mini LED pixel array and a driving circuit, and the pixel center distance is 0.3-1.5 mm. With the large-scale introduction of miniLED products, more and more miniLED repair problems also synchronously appear. The miniLED is actually too small, the die bonding effect is difficult to improve (unless the speed is greatly reduced) due to the precision of the traditional die bonding equipment, and on the other hand, the defects in the production process are aggravated by the traditional reflow furnace mode.

At present, the yield of miniLED is difficult to control within 100 PPM, that is, the number of bad LEDs is about 4-5 for an RGB miniLED display screen with palm as large as this.

The repair process is split, including: melting the welding points of the chip, removing the chip, cleaning the welding pad, re-welding the tin paste, fixing the crystal to a new chip and welding the chip. The most important tool in this process is the laser, which is used to remove the bad die and to bond the new die.

With the miniLED's getting smaller and smaller in size, especially to micro size, the rework device also faces more challenges, mainly expressed as: the light spot of the common laser is generally circular, and the energy is in Gaussian distribution. The LED chip is generally rectangular, and the LED chip is welded by using the traditional laser, which means that the energy of the laser is directly exposed on the PCB at the short side of the LED, so that the PCB is burned; the gaussian distribution laser energy also means that the temperature of the central position of the LED chip is relatively high, which is very easy to cause dark damage to the LED chip (especially, red LED chip), resulting in increased leakage current of the LED chip, and light decay or even lamp death, so the existing device adopts the technology of rectangular laser spot, in the prior art, the laser of the rectangular laser spot is generally transmitted by using rectangular optical fiber, but the rectangular optical fiber belongs to the special-shaped optical fiber, and the manufacturing cost and purchase cost of the rectangular optical fiber are far higher than those of the traditional circular optical fiber under the same length, and the cost is high by using the rectangular optical fiber for laser remote transmission.

SUMMERY OF THE UTILITY MODEL

Based on the above, the utility model provides an optical path system for exporting heterotypic facula to adopt heterotypic optic fibre long distance transport technical problem with high costs among the solution prior art.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

an optical path system for outputting special-shaped light spots comprises a round optical fiber and a special-shaped optical fiber;

the circular optical fiber has a first proximal end and a first distal end, light being input from the first proximal end of the circular optical fiber and output from the first distal end;

the profiled optical fiber has a second proximal end and a second distal end, the second proximal end being connected to the first distal end, light output from the first distal end being input into the profiled optical fiber from the second proximal end and the profiled spot being output from the second distal end.

Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:

the application provides a light path system adopts circular optic fibre to carry laser, connects heterotypic optic fibre at the output of circular optic fibre, and then reaches the effect of exporting heterotypic facula, adopts circular optic fibre remote transmission, effectively reduces the cost of transportation to through the connection of two kinds of optic fibres, realize the effective output of heterotypic facula, guarantee the normal clear of follow-up laser service sequence.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, the length of the special-shaped optical fiber is smaller than that of the round optical fiber.

Further, the first distal end and the second proximal end are arranged in an abutting manner.

Further, the first distal end and the second proximal end are fusion bonded.

Further, still include the coupler, first distal end and the second near-end are connected through the coupler coupling.

Further, the special-shaped light spots comprise rectangular light spots, and the special-shaped optical fibers comprise rectangular optical fibers.

Drawings

Fig. 1 is a schematic structural diagram of an optical path system for outputting a special-shaped light spot according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of optical transmission from a round optical fiber to a profiled optical fiber;

fig. 3 is a schematic structural diagram of coupling connection of a circular optical fiber to a profiled optical fiber.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

It will be understood that spatial relationship terms, such as "at 8230; …," below, "" at 8230; \8230; below, "" under 8230; \8230;, "below," "under 8230;, \8230; above," "above," etc., may be used herein to describe the relationship of one element or feature to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary terms "at 8230; \8230; below" and "at 8230; \8230; below" may include both upper and lower orientations. In addition, the device may comprise additional orientations (e.g., rotated 90 degrees or other orientations) and the spatial descriptors used herein interpreted accordingly.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. The "connection" in the following embodiments is understood as "electrical connection", "communication connection", or the like if the connected circuits, modules, units, or the like have electrical signals or data transmission therebetween.

As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," or "having," and the like, specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

As shown in fig. 1 and fig. 3, the embodiment of the present application provides an optical path system for outputting a profiled light spot, which includes a circular optical fiber 1 and a profiled optical fiber 2.

Wherein, the circular optical fiber 1 has a first near end 1a and a first far end 1b, and the laser light is input from the first near end 1a of the circular optical fiber 1 and output from the first far end 1 b; the profiled fiber 2 has a second proximal end 2a and a second distal end 2b, the second proximal end 2a is connected to the first distal end 1b, the laser light output from the first distal end 1b is input into the profiled fiber 2 from the second proximal end 1a, and the profiled spot is output from the second distal end 2 b.

Wherein, in order to realize the long-distance transmission of the round optical fiber 1, in the preferred embodiment of the present application, the length of the profiled optical fiber 2 is much smaller than that of the round optical fiber 1.

In some embodiments of the present application, the first distal end 1b and the second proximal end 2a are disposed in a butt joint, which may be an abutment or an adhesive, in other embodiments of the present application, the first distal end 1b and the second proximal end 2a are welded, and in other embodiments of the present application, the first distal end 1b and the second proximal end 2a are coupled by a coupler 3, as shown in fig. 2.

As one of the most common profiled fibers used in the present application, the profiled light spot comprises a rectangular light spot, and the profiled fiber 2 comprises a rectangular fiber.

The application provides a light path system adopts circular optic fibre to carry laser, connects heterotypic optic fibre 2 at the output of circular optic fibre 1, and then reaches the effect of output heterotypic facula, adopts 1 remote transmission of circular optic fibre, effectively reduces the cost of delivery to through the connection of two kinds of optic fibre, realize the effective output of heterotypic facula, guarantee the normal clear of follow-up laser service process.

The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. An optical path system for outputting a special-shaped light spot is characterized by comprising a circular optical fiber and a special-shaped optical fiber;

the profiled optical fiber has a second proximal end and a second distal end, the second proximal end is connected to the first distal end, light output from the first distal end is input into the profiled optical fiber from the second proximal end, and a profiled spot is output from the second distal end.

2. The optical path system for outputting the profiled spot according to claim 1, wherein the profiled fiber has a length smaller than that of the circular fiber.

3. The optical path system for outputting the profiled spot according to claim 1, wherein the first far end and the second near end are butt-jointed.

4. The optical path system for outputting the profiled spot according to claim 1, wherein the first distal end and the second proximal end are welded.

5. The optical path system for outputting the profiled spot according to claim 1, further comprising a coupler, wherein the first distal end and the second proximal end are coupled and connected through the coupler.

6. The optical path system for outputting the profiled spot according to claim 1, wherein the profiled spot comprises a rectangular spot, and the profiled fiber comprises a rectangular fiber.