CN219588823U

CN219588823U - Hole-opening backlight lamp without shadow

Info

Publication number: CN219588823U
Application number: CN202320357801.8U
Authority: CN
Inventors: 何祥
Original assignee: Dongguan Xiangrui Automation Technology Co ltd
Current assignee: Dongguan Xiangrui Automation Technology Co ltd
Priority date: 2023-03-02
Filing date: 2023-03-02
Publication date: 2023-08-25
Anticipated expiration: 2033-03-02

Abstract

The utility model discloses a shadow-free perforated backlight lamp, which comprises a bottom plate, a PCB lamp panel, a lamp bead structure and a light guide protection structure, wherein a penetrating hole A and a penetrating hole B are respectively formed in the bottom plate and the PCB lamp panel, the size of the penetrating hole A is matched with that of the penetrating hole B, the PCB lamp panel is fixedly arranged at the upper end surface of the bottom plate, one side of the PCB lamp panel is provided with a power wire, a control and regulation switch is arranged on the power wire, the lamp bead structure is arranged at the upper end surface of the PCB lamp panel, the light guide protection structure is arranged at the upper end surface of the bottom plate, the light guide protection structure is positioned at the outer part of the PCB lamp panel, and four inclined planes are arranged on the upper end surface of the PCB lamp panel close to the penetrating hole B. According to the utility model, the brightness missing at the photographing center position of the lens due to the hole can be compensated by polishing at an oblique angle, so that the influence on the sheeting effect caused by the shadow condition at the photographing center position of the lens is effectively avoided, and the practicability is higher.

Description

Hole-opening backlight lamp without shadow

Technical Field

The utility model relates to the field of lamp equipment, in particular to a shadowless open-pore backlight lamp.

Background

The lamp is a general term of a lighting tool, and refers to a light-transmitting, distributing and changing device capable of transmitting light, distributing and changing light distribution of a light source, and comprises all parts except the light source, which are used for fixing and protecting the light source, and circuit accessories which are necessary for connection with a power supply.

However, the existing aperture backlight has the following disadvantages:

because the lamp plate is generally a plane plate, and the middle position of the lamp plate is provided with the through hole, the direct lighting of the middle part is lacking in the working process, so that the light at the center position of the lens is darker than the light at the periphery, and then the final photographing effect is affected due to the shadow condition, and the practicality is poor.

Disclosure of Invention

The utility model aims to provide a shadowless perforated backlight lamp, which solves the problems that the traditional perforated backlight lamp is generally a plane plate, and a through hole is arranged at the middle position of the lamp plate, so that direct lighting of the middle part is absent in working, the light at the center position of a lens is darker than the light at the periphery, and then the situation of shadows appears to influence the final photographing effect, and the practicability is poor.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a no shadow trompil backlight, includes bottom plate, PCB lamp plate, lamp pearl structure and light guide protection structure, bottom plate and PCB lamp plate do not are equipped with through hole A and through hole B that runs through respectively, just the size of through hole A and through hole B's size phase-match, PCB lamp plate fixed mounting is in the upper end surface department of bottom plate, one side of PCB lamp plate is provided with the power cord, be provided with control switch on the power cord, lamp pearl structure installs in the upper end surface department of PCB lamp plate, light guide protection structure installs in the upper end surface department of bottom plate, just light guide protection structure is located the outside department of PCB lamp plate.

Preferably, four inclined planes are arranged on the upper end surface of the PCB lamp panel near the through hole B, and the bottoms of the four inclined planes are near the through hole B.

Preferably, the lamp bead structure comprises a lamp bead A and a lamp bead B, wherein the lamp bead A and the lamp bead B are all provided with a plurality of lamp beads, the lamp bead A is all installed at the upper end surface of the PCB lamp panel, and the lamp bead B is respectively installed at four inclined planes of the PCB lamp panel.

Preferably, the size of the lamp beads B is smaller than that of the lamp beads a, and the density between a plurality of the lamp beads B is greater than that between a plurality of the lamp beads a.

Preferably, the light guide protection structure comprises a light guide plate and a light transmission plate, the light guide plate is made of non-light-transmitting materials, the light guide plate is in a rectangular frame shape, the light guide plate is fixedly arranged at the upper end surface of the bottom plate, the light transmission plate is fixedly arranged in the light guide plate, and a through hole C matched with the position and the size of the through hole B is formed in the light transmission plate.

The utility model provides a shadowless perforated backlight lamp, which has the following beneficial effects:

according to the utility model, four inclined planes are formed at the periphery of the through hole B of the PCB lamp panel, and the plurality of lamp beads B with higher density are arranged at the four inclined planes, so that when the lens is photographed and auxiliary lighting is performed subsequently, the plurality of lamp beads B can be used for lighting at an inclined angle towards the photographing center position of the lens, thereby effectively compensating the central lighting effect which is lost due to the formation of the through hole B, further effectively avoiding the influence on the photographing effect due to the occurrence of the shadow condition at the center position when the lens is photographed, and having higher practicability.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic top view of a PCB lamp panel according to the present utility model;

fig. 3 is a schematic top view of a light guide plate according to the present utility model.

In the figure: 1. a bottom plate; 2. a PCB lamp panel; 3. a through hole A; 4. a through hole B; 5. an inclined plane; 6. a lamp bead A; 7. a lamp bead B; 8. a light guide plate; 9. a light-transmitting plate; 10. and a through hole C.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

As shown in fig. 1-3, the present utility model provides a technical solution: the utility model provides a no shadow trompil backlight, includes bottom plate 1, PCB lamp plate 2, lamp pearl structure and light guide protection structure, bottom plate 1 and PCB lamp plate 2 do not are equipped with through hole A3 and through hole B4 that runs through respectively, just the size of through hole A3 and the size assorted of through hole B4, PCB lamp plate 2 fixed mounting is in the upper end surface department of bottom plate 1, one side of PCB lamp plate 2 is provided with the power cord, be provided with control regulating switch on the power cord, lamp pearl structure installs in the upper end surface department of PCB lamp plate 2, light guide protection structure installs in the upper end surface department of bottom plate 1, just light guide protection structure is located the outside department of PCB lamp plate 2.

Four inclined planes 5 are arranged on the upper end surface of the PCB lamp panel 2 near the through holes B4 of the PCB lamp panel, and the bottoms of the four inclined planes 5 are near the through holes B4, so that when the lens is lighted in an auxiliary mode, a plurality of lamp beads B7 at the four inclined planes 5 can be lighted towards the photographing center position of the lens at an oblique angle, the central lighting effect which is missing due to the fact that the through holes B4 are formed is effectively compensated, the influence on photographing effect due to the fact that a shadow appears at the central position when the lens is photographed is effectively avoided, and the practicability is high;

the lamp bead structure comprises a plurality of lamp beads A6 and a plurality of lamp beads B7, wherein the lamp beads A6 and the lamp beads B7 are all arranged, the lamp beads A6 are all arranged at the upper end surface of the PCB lamp panel 2, the lamp beads B7 are respectively arranged at the four inclined planes 5 of the PCB lamp panel 2, so that the normal lighting effect can be achieved through the lamp beads A6, and the lamp beads B7 can be matched with the four inclined planes 5 to supplement light at the photographing center position, so that the dark shadow condition at the photographing center position is avoided;

the size of the lamp beads B7 is smaller than that of the lamp beads A6, the density among a plurality of the lamp beads B7 is larger than that among a plurality of the lamp beads A6, so that the lamp light of the lamp beads B7 is brighter, and the lamp light is matched with the lamp light at an upper oblique angle, so that the condition of dark shadows at the photographing center position is further avoided;

the light guide protection structure comprises a light guide plate 8 and a light-transmitting plate 9, the light guide plate 8 is made of non-light-transmitting materials, the light guide plate 8 is in a rectangular frame shape, the light guide plate 8 is fixedly arranged at the upper end surface of the bottom plate 1, the light-transmitting plate 9 is fixedly arranged in the light guide plate 8, a through hole C10 matched with the position and the size of the through hole B4 is formed in the light-transmitting plate 9, the light of a plurality of lamp beads A6 can be guided through the light guide plate 8, the lighting effect of the target position is reduced due to the fact that the light is excessively diffused by the light guide plate 8, and the light-transmitting plate 9 can protect the lamp beads A6 and the lamp beads B7.

Working principle: during operation, can play normal effect of polishing through a plurality of lamp pearl A6, and a plurality of lamp pearl B7 of four inclined planes 5 departments can be towards the center position department oblique angle degree polishing of shooing of camera lens to effectually compensatied because offered the through-hole B4 and missed center effect of polishing, then effectually avoided the camera lens to shoot the time center position department and appear the shadow condition and influence and shoot into the effect, the practicality is higher.

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, and is merely for convenience in describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and defined otherwise, for example, it may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a no shadow trompil backlight, includes bottom plate (1), PCB lamp plate (2), lamp pearl structure and leaded light protective structure, its characterized in that: the LED lamp comprises a base plate (1) and a PCB lamp panel (2), wherein a penetrating hole A (3) and a penetrating hole B (4) are respectively formed in the base plate and the PCB lamp panel (2), the size of the penetrating hole A (3) is matched with that of the penetrating hole B (4), the PCB lamp panel (2) is fixedly installed at the upper end surface of the base plate (1), a power line is arranged on one side of the PCB lamp panel (2), a control regulating switch is arranged on the power line, a lamp bead structure is installed at the upper end surface of the PCB lamp panel (2), a light guide protection structure is installed at the upper end surface of the base plate (1), and the light guide protection structure is located at the outer part of the PCB lamp panel (2).

2. A shadowless aperture backlight as defined in claim 1, wherein: four inclined planes (5) are arranged on the upper end surface of the PCB lamp panel (2) close to the through hole B (4), and the bottoms of the four inclined planes (5) are close to the through hole B (4).

3. A shadowless aperture backlight as defined in claim 1, wherein: the lamp bead structure comprises a lamp bead A (6) and a lamp bead B (7), wherein the lamp bead A (6) and the lamp bead B (7) are all provided with a plurality of lamp beads, the lamp bead A (6) are all installed at the upper end surface of the PCB lamp panel (2), and the lamp bead B (7) are respectively installed at four inclined planes (5) of the PCB lamp panel (2).

4. A shadowless aperture backlight as defined in claim 3, wherein: the size of the lamp beads B (7) is smaller than that of the lamp beads A (6), and the density among a plurality of the lamp beads B (7) is larger than that among a plurality of the lamp beads A (6).

5. A shadowless aperture backlight as defined in claim 1, wherein: the light guide protection structure comprises a light guide plate (8) and a light transmission plate (9), wherein the light guide plate (8) is made of a non-light-transmitting material, the light guide plate (8) is in a rectangular frame shape, the light guide plate (8) is fixedly arranged at the upper end surface of the bottom plate (1), the light transmission plate (9) is fixedly arranged in the inside of the light guide plate (8), and a through hole C (10) matched with the position and the size of the through hole B (4) is formed in the inside of the light transmission plate (9).