Light conversion device of light supplement lamp

Abstract

The utility model relates to the technical field of traffic light supplement lamps, and discloses a light conversion device of a light supplement lamp. The base (1) is used for being installed on a reflection cup (6), the driving optical filter (2) is installed on the base (1) and rotates relative to the base (1), the driven optical filters (3) are arranged between the driving optical filter (2) and the base (1), the driving mechanism (4) drives the driving optical filter (2) to rotate, and the driving mechanism (4) works to drive the driving optical filter (2) and the driven optical filters (3) to be sequentially closed or unfolded. A plurality of driven optical filters which can be rotated and folded are adopted, when the driven optical filters are folded, it is ensured that light rays are emitted as much as possible, the lighting effect is improved, light emitted by a light source irradiates on a base through a reflection cup, the light emitted by the light source comprises infrared light rays, ultraviolet light rays and other light rays with different wavelengths, and the problems that a plastic structural part is aged, and the service life of the plastic structural part is prolonged are solved. And the service life is shortened.

Description

Technical Field

[0001] The utility model belongs to the field of traffic fill-in lights, and in particular relates to a light conversion device of the fill-in light. Background Art

[0002] With the development of intelligent transportation technology, cameras capable of capturing license plate images and performing facial recognition are becoming increasingly common. However, due to interference from sunlight during the day, the camera's snapshot function is not sensitive enough for facial recognition, necessitating a fill light. At night, the camera's snapshot function also requires a weaker infrared fill light to reduce light pollution. Therefore, a fill light with a light conversion device is needed to meet these requirements. When infrared light is needed at night, the fill light's infrared filter opens, allowing infrared light to pass through. When strong light is needed during the day, the fill light's infrared filter closes, allowing as much strong light as possible to pass through.

[0003] Several models are currently available on the market, but they all have certain drawbacks. For example, when the infrared filter in the light conversion device of some fill lights is opened and closed, the proportion of light transmitted is relatively small, resulting in low light efficiency. This requires increasing the power of the lamp to compensate, increasing energy consumption and shortening the lamp life. Some fill lights' light conversion devices lack thermal protection for the infrared filter, shortening the filter's lifespan. In another case, such as the light conversion assembly with patent number CN201922447398.4, the motor that drives the filter to open and close is located in the middle, causing high temperatures and shortening the motor's lifespan.

[0004] Therefore, the present invention designs a light conversion device for a fill light, which is a reliable solution that can effectively solve the above comprehensive problems. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the purpose of the present invention is to provide a light conversion device for a fill light, aiming to solve the problems that the above-mentioned motor is set in the central area and is easily damaged by the high temperature generated by the light source, thereby reducing the service life, and the large area of ​​the filter plate cannot achieve higher light efficiency.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A light conversion device for a fill light comprises a base for mounting on a reflective cup, an active filter mounted on the base and rotating relative to the base, a plurality of groups of driven filters arranged between the active filter and the base, and a driving mechanism for driving the active filter to rotate. The driving mechanism drives the active filter and the driven filter to close or expand in sequence.

[0008] Preferably, the base includes an outer ring matching the reflective cup and a baffle connected to the outer ring, and a rotating shaft is provided on the baffle at the center of the outer ring.

[0009] Preferably, a plurality of groups of driven filters and active filters are respectively provided with limiting holes, so that they can be sequentially sleeved on the rotating shaft through the limiting holes.

[0010] Preferably, a linkage structure is provided between adjacent driven filters or between adjacent driven filters and active filters to achieve mutual linkage between the active filter and the driven filter.

[0011] Preferably, the linkage structure includes a protrusion provided on the driven filter and a slide groove provided on the back of the adjacent active filter or the driven filter and matching the protrusion. The protrusion is slidably provided in the slide groove, so that when the active filter rotates, the adjacent driven filter is driven to rotate until the protrusion slides to the end of the slide groove, and then the upper driven filter drives the adjacent driven filters to rotate in turn.

[0012] Preferably, a blocking bar is provided on one side of the sliding groove of the active filter to prevent the sliding position of the driven filter from being limited.

[0013] Preferably, the baffle includes at least one sector-shaped piece connected to the outer ring, and the active filter and the driven filter each include at least one sector-shaped filter.

[0014] Preferably, the area of ​​a single sector-shaped piece is less than or equal to the area of ​​a single sector-shaped filter. When the sector-shaped filter is fully expanded, multiple groups of sector-shaped filters or sector-shaped filters and sector-shaped pieces are combined to form a circle to cover the inner circular cavity of the outer ring; when the sector-shaped filter is fully closed, multiple groups of sector-shaped filters are superimposed in sequence and located above the sector-shaped piece.

[0015] Preferably, the driving mechanism includes a rack connected to the active filter, a gear meshing with the rack, and a driving motor that drives the gear to rotate. The driving motor is fixed on the outer ring to drive the active filter to rotate along the rotating axis when the driving motor is working.

[0016] Preferably, the driving mechanism includes a driving motor connected to the active filter via a mutually meshing gear set, and the driving motor is fixed on the outer ring to drive the active filter to rotate along the rotating shaft when the driving motor is working.

[0017] The utility model has the following beneficial effects:

[0018] (1) A plurality of rotating and foldable driven filters are used. When the driven filters are folded, as much light as possible is ensured to come out, thereby improving the light efficiency. The light emitted by the light source is irradiated onto the base through the reflective cup. The light emitted by the light source includes light of different wavelengths such as infrared and ultraviolet, which solves the problems of causing aging of plastic structural parts and reducing their lifespan.

[0019] (2) The opening or folding of the driven filter and the active filter is achieved by meshing the gears and the racks. The driving mechanism is arranged outside the circumference of the base, so that the heat generated by the light source in the reflective cup will not directly contact the driving mechanism. When the driving mechanism is working, it will not be continuously in the highest temperature environment, but will be continuously at the edge of the high temperature point (because the closer to the center position, the higher the temperature, and vice versa), which can improve the service life of the motor in the driving mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of the light conversion device in the present invention in an unfolded state.

[0021] Figure 2 This is a schematic diagram of the split structure of the light conversion device in the utility model in the unfolded state Figure 1 .

[0022] Figure 3 This is a schematic diagram of the split structure of the light conversion device in the utility model in the unfolded state Figure 2 .

[0023] Figure 4 This is a structural diagram of the light conversion device in the present invention in a closed state.

[0024] Figure 5 This is a schematic structural diagram of the lamp holder assembly in the present utility model.

[0025] Figure 6 This is a schematic diagram of the disassembled structure of the lamp holder assembly in the present utility model.

[0026] In the accompanying drawings: 1-base, 11-outer ring, 12-block, 13-rotating shaft, 2-active filter, 3-driven filter, 31-limiting hole, 32-protrusion, 33-slide groove, 331-block bar, 4-driving mechanism, 41-rack, 42-gear, 43-driving motor, 5-lamp head body, 6-reflective cup, 7-light source. DETAILED DESCRIPTION

[0027] Embodiment 1: A preferred embodiment of the present invention provides a light conversion device for a fill light, comprising a base 1 for mounting on a reflective cup 6, an active filter 2 mounted on the base 1 and rotating relative to the base 1, a plurality of groups of driven filters 3 arranged between the active filter 2 and the base 1, and a driving mechanism 4 for driving the active filter 2 to rotate. The driving mechanism 4 drives the active filter 2 and the driven filter 3 to close or expand in sequence.

[0028] The base 1 includes an outer ring 11 that matches the reflector cup 6 and a baffle 12 connected to the outer ring 11. A rotating shaft 13 is provided on the baffle 12 at the center of the outer ring 11. Several groups of driven filters 3 and active filters 2 are each provided with a retaining hole 31, through which they are sequentially mounted on the rotating shaft 13. Screws are tightened on the top of the rotating shaft 13 to retain the active and driven filters 2 and 3 in place and prevent them from falling out during rotation.

[0029] The active filter 2 and the driven filter 3 are made of plastic or glass materials that can transmit a certain wavelength range, and the base 1 is made of opaque material.

[0030] Embodiment 2: A preferred embodiment of the present invention provides a light conversion device for a fill light, which differs from the above embodiment only in that:

[0031] A linkage structure is provided between adjacent driven filters 3 or between adjacent driven filters 3 and the active filter 2 to achieve mutual linkage between the active filter 2 and the driven filter 3 .

[0032] The linkage structure includes a protrusion 32 provided on the driven filter 3 and a slide groove 33 provided on the back of the adjacent active filter 2 or the driven filter 3 and matching the protrusion 32. The protrusion 32 is slidably provided in the slide groove 33, so that when the active filter 2 rotates, the adjacent driven filter 3 is driven to rotate until the protrusion 32 slides to the end of the slide groove 33, and then the upper driven filter 3 drives the adjacent driven filter 3 to rotate in turn.

[0033] A blocking bar 331 is provided on one side of the sliding groove 33 of the active filter 2 to prevent the driven filter 3 from sliding.

[0034] Embodiment 3: A preferred embodiment of the present invention provides a light conversion device for a fill light, which differs from the above embodiment only in that:

[0035] The baffle 12 includes at least one sector-shaped piece connected to the outer ring 11. The active filter 2 and the driven filter 3 each include at least one sector-shaped filter. The area of ​​a single sector-shaped piece is less than or equal to the area of ​​a single sector-shaped filter. When the sector-shaped filter is fully extended, multiple groups of sector-shaped filters or a combination of sector-shaped filters and sector-shaped pieces form a circular shape to cover the inner circular cavity of the outer ring 11. When the sector-shaped filter is fully closed, the multiple groups of sector-shaped filters are sequentially superimposed and positioned above the sector-shaped pieces.

[0036] The single sector-shaped sheet and the single sector-shaped filter are designed with the same structure. When folded closed, the barrier 12 completely blocks the active filter 2 and the driven filter 3, ensuring that as much light as possible escapes and improving light efficiency. The barrier 12 also protects the active filter 2 and the driven filter 3, extending their service life.

[0037] Embodiment 4: A preferred embodiment of the present invention provides a light conversion device for a fill light, which differs from the above embodiment only in that:

[0038] The driving mechanism 4 includes a rack 41 connected to the active filter 2, a gear 42 meshing with the rack 41, and a driving motor 43 that drives the gear 42 to rotate. The driving motor 43 is fixed to the outer ring 11. The driving motor 43 drives the gear 42 to rotate, thereby driving the rack 41 to rotate, thereby driving the active filter 2 to rotate along the rotating shaft 13; and cooperates with the linkage structure to drive the driven filters 3 to be linked with each other, so that the active filter 2 and the driven filter 3 are opened or folded.

[0039] Embodiment 5: A preferred embodiment of the present invention provides a light conversion device for a fill light, which differs from the above embodiments only in that:

[0040] The driving mechanism 4 includes a driving motor 43, which is connected to the active filter 2 through a mutually meshing gear set. The driving motor 43 is fixed to the outer ring 11 so that when the driving motor 43 is working, it drives the active filter 2 to rotate along the rotating shaft 13; and cooperates with the linkage structure to drive the driven filter 3 to be linked with each other, so that the active filter 2 and the driven filter 3 are opened or folded.

[0041] Example 6: A preferred embodiment of the present invention provides a lamp holder assembly, including a lamp holder body 5, a reflective cup 6 arranged in the lamp holder body 5 and a light source 7 arranged in the reflective cup 6, and also includes the light conversion device described in Examples 1-4, and the light conversion device is installed on the reflective cup 6.

[0042] The working principle of this device is as follows: when there is sufficient light during the day, in order to improve the brightness effect of the fill light, the driving mechanism 4 is controlled to work, and the driving motor 43 drives the gear 42 to rotate, which will drive the active filter 2 to rotate counterclockwise. When the active filter 2 rotates to the adjacent driven filter 3 and the protrusion 32 on the driven filter 3 slides to the end of the slide groove 33, the driven filter 3 is driven to rotate counterclockwise toward the adjacent driven filter 3 until it is folded in the area of ​​the baffle 12, completing the folding state. At this time, the light of the fill light can be released to the maximum extent; the light emitted by the light source is irradiated onto the base through the reflective cup. The light emitted by the light source includes light of different wavelengths such as infrared and ultraviolet, which solves the problems of aging of plastic structural parts and shortening of life.

[0043] When the light is weak at night, in order to reduce the brightness effect of the fill light and avoid dazzling the driver, the driving mechanism 4 is controlled to work, and the driving motor 43 drives the gear 42 to rotate, which will drive the active filter 2 to rotate clockwise. When the active filter 2 rotates to the point where the protrusion 32 on the adjacent driven filter 3 slides to the end of the slide groove 33, it drives the driven filter 3 to rotate, and then drives the other driven filters 3 to rotate in turn until multiple driven filters 3 are fully opened and the open state is completed, which blocks all the light from the light source 7 in the reflective cup 6 and releases it after filtering, thereby avoiding dazzling the driver and improving driving safety.

[0044] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in this field within the scope of the present invention are included in the patent scope of the present invention.

Claims

1. A light conversion device for a fill light, characterized in that: The invention comprises a base (1) for being mounted on a reflective cup (6), an active filter (2) mounted on the base (1) and rotating relative to the base (1), a plurality of groups of driven filters (3) arranged between the active filter (2) and the base (1), and a driving mechanism (4) for driving the active filter (2) to rotate. The driving mechanism (4) drives the active filter (2) and the driven filter (3) to close or unfold in sequence when in operation.

2. The light conversion device of a fill light according to claim 1, characterized in that: The base (1) comprises an outer ring (11) matched with the reflective cup (6) and a baffle (12) connected to the outer ring (11); a rotating shaft (13) is provided on the baffle (12) at the center of the outer ring (11).

3. The light conversion device of a fill light according to claim 2, characterized in that: A plurality of groups of driven optical filters (3) and active optical filters (2) are respectively provided with limiting holes (31) so as to be sequentially sleeved on the rotating shaft (13) through the limiting holes (31).

4. The light conversion device of a fill light according to claim 2, characterized in that: The baffle (12) includes at least one sector-shaped piece connected to the outer ring (11), and the active filter (2) and the driven filter (3) each include at least one sector-shaped filter.

5. The light conversion device of a fill light according to claim 4, characterized in that: The area of ​​a single sector-shaped piece is less than or equal to the area of ​​a single sector-shaped filter. When the sector-shaped filter is fully unfolded, multiple groups of sector-shaped filters or the sector-shaped filter and the sector-shaped piece are combined to form a circle to cover the inner circular cavity of the outer ring (11); when the sector-shaped filter is fully closed, the multiple groups of sector-shaped filters are superimposed in sequence and located above the sector-shaped piece.

6. The light conversion device of a fill light according to claim 1, characterized in that: A linkage structure is provided between adjacent driven optical filters (3) or between adjacent driven optical filters (3) and an active optical filter (2) to achieve mutual linkage between the active optical filter (2) and the driven optical filter (3).

7. The light conversion device of a fill light according to claim 6, characterized in that: The linkage structure comprises a protrusion (32) provided on the driven filter (3) and a slide groove (33) provided on the back of the adjacent active filter (2) or the driven filter (3) and matching the protrusion (32); the protrusion (32) is slidably provided in the slide groove (33) so that when the active filter (2) rotates, the adjacent driven filter (3) is driven to rotate until the protrusion (32) slides to the end of the slide groove (33), and then the upper driven filter (3) drives the adjacent driven filter (3) to rotate in sequence.

8. The light conversion device of a fill light according to claim 7, characterized in that: A blocking bar (331) is provided on one side of the sliding groove (33) of the active optical filter (2) to prevent the sliding position of the driven optical filter (3) from being limited.

9. A light conversion device for a fill light according to any one of claims 2 to 8, characterized in that: The driving mechanism (4) comprises a rack (41) connected to the active optical filter (2), a gear (42) meshing with the rack (41), and a driving motor (43) driving the gear (42) to rotate. The driving motor (43) is fixed to the outer ring (11) so as to drive the active optical filter (2) to rotate along the rotating shaft (13) when the driving motor (43) is in operation.

10. A light conversion device for a fill light according to any one of claims 2 to 8, characterized in that: The driving mechanism (4) includes a driving motor (43), which is connected to the active optical filter (2) via a mutually meshing gear set. The driving motor (43) is fixed to the outer ring (11) so as to drive the active optical filter (2) to rotate along the rotating shaft (13) when the driving motor (43) is in operation.

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