Injection molding light guide ring

Abstract

The utility model relates to the technical field of light guide elements, in particular to an injection molding light guide ring, which comprises a mounting seat, an optical fiber fixing seat accommodated in the mounting seat and an optical fiber ring accommodated in the mounting seat and connected with the optical fiber fixing seat, a light-transmitting ring is annularly arranged on the periphery of the mounting seat, and light emitted by the optical fiber ring is guided into the light-transmitting ring. The light-transmitting ring is provided with the light-transmitting boss at the corner close to the light inlet of the optical fiber ring, so that the light dispersion area at the corner is larger, the light loss at the corner of the light inlet of the optical fiber ring is increased, the brightness at the corner is weakened, the brightness of the light-transmitting ring is uniform, and the service life of the light-transmitting ring is prolonged. The problem that the brightness of the aperture is not uniform after the cover plate is covered due to over-high brightness at the corner of the light inlet of the optical fiber ring is avoided, and the lighting effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to light guide element technical field, concretely relates to a injection light guide ring. BACKGROUND

[0002] Optical fiber light emission mainly depends on the characteristics of optical fiber, and light signals are transmitted through optical fiber material and emitted at specific positions. Optical fiber is composed of a high-refractive inner core and a low-refractive cladding. When light signals are incident into the optical fiber, the light rays will reflect back and forth between the inner core and the cladding, resulting in total reflection, so that the propagation speed of the light rays in the optical fiber is very fast, and the light rays will not be significantly attenuated due to the transmission distance. When pure light signals are transmitted in the optical fiber, the light rays will be emitted from the optical fiber due to the difference in refractive index between the inner core and the cladding of the optical fiber.

[0003] Generally, the light source emitting device at one end of the optical fiber uses a light-emitting diode (LED) or a bundle of lasers to transmit light pulses to the optical fiber, and the optical fiber is bent into a ring and placed in a mounting seat to emit light, and a cover plate is used to cover the surface of the mounting seat, and the outer periphery of the cover plate is transparent to form a light ring light decoration effect; however, the existing optical fiber light guide has poor light emission effect, and the area in the direct light direction of the light source is bright, which makes the brightness of the corner of the light inlet of the optical fiber ring too high, resulting in the problem of uneven brightness of the light ring after covering the cover plate, which affects the decoration effect. SUMMARY

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the utility model is to provide a injection light guide ring.

[0005] The utility model discloses a injection light guide ring, including the mounting seat, the optical fiber fixed seat of setting in the mounting seat and the optical fiber ring of setting in the mounting seat and being connected with the optical fiber fixed seat, the periphery annular of mounting seat is provided with the light -transmitting ring, the optical fiber ring is used for guiding light and emitting light to the light -transmitting ring, the corner of the light -transmitting ring near the light inlet of the optical fiber ring protrudes the light -transmitting boss.

[0006] Preferably, the injection light guide ring further comprises a circuit board connected to the bottom of the mounting seat and extending into the optical fiber fixed seat, and the circuit board is electrically connected with an LED lamp, and the light inlet of the optical fiber ring faces the light emitting surface of the LED lamp.

[0007] Preferably, the optical fiber ring comprises a light inlet portion, a light transition portion and a light guide portion connected in sequence and optically connected, the light guide portion abuts against the light-transmitting ring, the top surface of the light guide portion is arc-shaped, the bottom surface of the light guide portion is planar, and the corner between the top surface of the light guide portion and the bottom surface of the light guide portion is smoothly transitioned.

[0008] Preferably, the bottom surface of the light guide portion is distributed with light guide dots, and the distribution density of the light guide dots of the light guide portion gradually increases in the direction away from the light transition portion.

[0009] Preferably, the light inlet section of the light inlet part is circular, and the light inlet section area of the light inlet part is 1.2-1.8 times of the cross section area of the light guide part.

[0010] Preferably, the light transition part is uphill transition from the light inlet part to the light guide part, the top surface of the light transition part is arc-shaped, and the bottom surface of the light transition part is gradually inclined from the light inlet part to the light guide part to a plane structure.

[0011] Preferably, the middle part of the mounting seat is provided with a first mounting groove, and the optical fiber fixing seat is contained in the first mounting groove; the mounting seat is provided with a second mounting groove in communication with the first mounting groove, and the optical fiber ring is contained in the second mounting groove and extends into the first mounting groove to be connected with the optical fiber fixing seat.

[0012] The injection molding light guide ring has the advantages that the injection molding light guide ring adopts a mounting seat, an optical fiber fixing seat contained in the mounting seat, and an optical fiber ring contained in the mounting seat and connected with the optical fiber fixing seat, the periphery of the mounting seat is annularly provided with a light transmission ring, light emitted by the optical fiber ring is guided into the light transmission ring, and a light transmission boss is protruded at the corner of the light transmission ring close to the light inlet of the optical fiber ring, so that the light dispersion area at the corner is larger, the light loss at the corner of the light inlet of the optical fiber ring is increased, the light intensity at the corner is weakened, the light intensity of the light transmission ring is uniform, the problem of non-uniform light circle intensity caused by the high light intensity at the corner of the light inlet of the optical fiber ring after the cover plate is covered is avoided, and the light efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic view of the utility model;

[0014] Figure 2 is an exploded schematic view of the utility model;

[0015] Figure 3 is a structural schematic view of the optical fiber ring;

[0016] Figure 4 is a structural schematic view of the optical fiber ring from another perspective;

[0017] Figure 5 is a sectional view of the light guide part.

[0018] The signs are: 1, mounting seat; 2, optical fiber fixing seat; 3, optical fiber ring; 31, light inlet part; 32, light transition part; 33, light guide part; 4, light transmission ring; 5, light transmission boss; 6, circuit board; 7, LED lamp; 8, light guide dot; 9, first mounting groove; 10, second mounting groove. DETAILED DESCRIPTION

[0019] For the convenience of those skilled in the art to understand, the utility model is further explained below in combination with examples and drawings, and the content mentioned in the implementation mode is not a limitation on the utility model.

[0020] As Figures 1-5 shown, an injection molding light guide ring, including the mounting seat 1, the fiber optic fixed seat 2 in the mounting seat 1, and the fiber ring 3 in the mounting seat 1 and connected with the fiber optic fixed seat 2, the mounting seat 1 is annularly provided with the light transmission ring 4, the fiber ring 3 is used to guide light and emit light to the light transmission ring 4, the light transmission ring 4 is protruded with the light transmission boss 5 near the corner of the light inlet of the fiber ring 3.

[0021] The injection molding light guide ring, the mounting seat 1, the fiber optic fixed seat 2 in the mounting seat 1, and the fiber ring 3 in the mounting seat 1 and connected with the fiber optic fixed seat 2, the mounting seat 1 is annularly provided with the light transmission ring 4, the light emitted by the fiber ring 3 is guided into the light transmission ring 4, and the light transmission ring 4 is protruded with the light transmission boss 5 near the corner of the light inlet of the fiber ring 3, so that the light dispersion area at this place is larger, the light loss at the corner of the light inlet of the fiber ring 3 is increased, thereby reducing the brightness at this place, making the brightness of the light transmission ring 4 uniform, avoiding the problem that the light circle brightness is not uniform after the cover plate is covered due to the too high brightness at the corner of the light inlet of the fiber ring 3, and improving the light efficiency. Further, the light transmission ring 4 and the light transmission boss 5 are integrally injection molded.

[0022] Further, the injection molding light guide ring further includes the circuit board 6 connected to the bottom of the mounting seat 1 and extending into the fixed fiber optic fixed seat 2, the circuit board 6 is electrically connected with the LED lamp 7, and the light inlet of the fiber ring 3 is directed to the light emitting surface of the LED lamp 7. The LED lamp 7 emits light to the light inlet of the fiber ring 3, so that the fiber ring 3 guides light and emits light.

[0023] Further, the fiber ring 3 includes the light inlet part 31, the light transition part 32 and the light guide part 33 connected in sequence and light-transmissive, the light guide part 33 abuts against the light transmission ring 4, the top surface of the light guide part 33 is annularly arranged, the bottom surface of the light guide part 33 is a plane, and the corner between the top surface of the light guide part 33 and the bottom surface of the light guide part 33 is smoothly transitioned, the light is reflected back and forth in the light guide part 33, forming a multi-light reflection loop, so that the light reflection efficiency is higher, and the brightness and uniformity are greatly improved. Preferably, the circuit board 6 is a rigid circuit board 6 or a flexible circuit board 6, and in the embodiment, the circuit board 6 is a flexible circuit board 6.

[0024] Further, the bottom surface of the light guide part 33 is provided with light guide dots 8, and the distribution density of the light guide dots 8 of the light guide part 33 gradually increases along the direction away from the light transition part 32. The light source emits light through the light guide dots 8, and the distribution density of the light guide dots 8 gradually increases along the direction away from the light transition part 32, so as to ensure that the optical fiber ring 3 emits light uniformly, improve the light utilization rate, and further improve the overall brightness uniformity together with the special structure of the light guide part 33.

[0025] Further, the light inlet section of the light inlet part 31 is circular, and the light inlet section area of the light inlet part 31 is 1.2-1.8 times the cross-sectional area of the light guide part 33, which is beneficial to the light inlet surface of the light inlet part 31 to receive more light source transmission to the optical fiber ring 3, reduce light loss, improve light brightness, and avoid increasing energy consumption. Preferably, the light inlet section area of the light inlet part 31 is 1.4 times the cross-sectional area of the light guide part 33.

[0026] Further, the light transition part 32 is up-slope transition from the light inlet part 31 to the light guide part 33, the top surface of the light transition part 32 is arc-shaped, and the bottom surface of the light transition part 32 gradually transitions from the light inlet part 31 to the light guide part 33 to a plane structure. Due to the limitation of the space structure of the product, the light source cannot be flush with the light inlet surface of the conventional optical fiber, so the optical fiber ring 3 with this structure is up-slope transition from the light inlet part 31 to the light guide part 33 through the light transition part 32, so that the light inlet part 31 is lowered and aligned with the light source, and the light guide part 33 is aligned with the light transmission ring 4. The height difference is designed as a gradual slope through the light transition part 32, so that the light can be fully transmitted to each part of the optical fiber ring 3, and the overall light emitting area can emit light uniformly.

[0027] Further, the middle part of the mounting seat 1 is provided with a first mounting groove 9, and the optical fiber fixing seat 2 is contained in the first mounting groove 9; the mounting seat 1 is provided with a second mounting groove 10 in communication with the first mounting groove 9, and the optical fiber ring 3 is contained in the second mounting groove 10 and extends into the first mounting groove 9 to connect with the optical fiber fixing seat 2.

[0028] The above embodiment is a preferred implementation scheme of the present application, and in addition, the present application can be implemented in other ways, and any obvious replacement without departing from the concept of the present application is within the protection scope of the present application.

Claims

1. An injection molded light guide ring, characterized by: The mounting base, the fiber fixing base arranged in the mounting base, and the fiber ring arranged in the mounting base and connected with the fiber fixing base, a light-transmitting ring is annularly arranged around the mounting base, the fiber ring is used for transmitting light to the light-transmitting ring, and a light-transmitting boss is protruded at the corner close to the light inlet of the fiber ring.

2. A light guide ring according to claim 1, wherein: The injection-molded light-transmitting ring further comprises a circuit board connected to the bottom of the mounting base and extending into the fiber fixing base, the circuit board is electrically connected with an LED lamp, and the light inlet of the fiber ring faces the light-emitting surface of the LED lamp.

3. The injection molded light guide ring of claim 1, wherein: The fiber ring comprises a light inlet part, a light transition part and a light guide part which are connected in sequence and in optical communication, the light guide part abuts against the light-transmitting ring, the top surface of the light guide part is arc-shaped, the bottom surface of the light guide part is planar, and the corner between the top surface of the light guide part and the bottom surface of the light guide part is smoothly transitioned.

4. A light guide ring according to claim 3, wherein: The bottom surface of the light guide part is distributed with light guide dots, and the distribution density of the light guide dots of the light guide part gradually increases in the direction away from the light transition part.

5. The injection molded light guide ring of claim 3, wherein: The light inlet cross section of the light inlet part is circular, and the cross section area of the light inlet part is 1.2-1.8 times the cross section area of the light guide part.

6. The injection molded light guide ring of claim 3, wherein: The light transition part is up-slope transitioned from the light inlet part to the light guide part, the top surface of the light transition part is arc-shaped, and the bottom surface of the light transition part is gradually inclined from the light inlet part to the light guide part to be planar.

7. The injection molded light guide ring of claim 1, wherein: The middle part of the mounting base is provided with a first mounting groove, the fiber fixing base is arranged in the first mounting groove, the mounting base is provided with a second mounting groove which is in communication with the first mounting groove, and the fiber ring is arranged in the second mounting groove and extends into the first mounting groove to be connected with the fiber fixing base.

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