TWM565272U - Adjustable light-emitting diode projection lamp - Google Patents

Abstract

This creation provides a light-emitting diode projection lamp with adjustable light type. A light source is provided on a circuit board, and the light source is used to provide a light. A reflector surrounds the light source along an axis and contacts the light source. A circuit board is used to reflect the light; an adjustable shading device is connected to the reflecting member and the circuit board along the axis direction and surrounds the periphery of the light source, and the adjustable shading device is used to adjust to pass through the light The adjustable light-shielding device is provided with an opening and a plurality of adjusting members, and the adjusting members modulate the light through the opening to form a predetermined shaped irradiation area. The adjusting members are along a direction perpendicular to the axis. The size of the opening is adjusted on a plane of to adjust the light passing through the adjustable shading device.

Description

Adjustable light type light emitting diode projection lamp

This creation is about a lamp, especially a light-emitting diode projection lamp with adjustable light type.

At present, the technology of light-emitted diode (LED) lamps is rapidly developing, and there has been a trend of gradually replacing traditional lamps. The main difference between LED lamps and lamp-type lamps is that the LED light source used by the LED lamp is emitted by the LED die, which is the effect of a point light source. Due to the characteristics of LED point light sources, in the design of LED lamps, how to reflect the light source so that the point light source can diverge to form uniform light has become one of the key points in the design of LED lamps.

In the field of spotlights, whether traditional or LED lamps, track lights, spotlights and downlights are projected, the type of light (Footprint) projected is round or oval. In many places such as galleries, museums, and stores As well as shopping malls, you can see a variety of round light type projection lights, which are projected on various items, such as watercolors, Chinese paintings, ordering notice boards, and advertising boards. But almost all museums, galleries, art galleries have square shapes for their drawings, watercolors, and Chinese paintings. In addition, the shape and size of the ordering notice board and advertising board are also square. Therefore, the shape and size of the light projected from it is relatively single and cannot be changed differently. In addition, traditional projection The light type projected by the lamp is other than circular, and the middle illuminance will be very high. The illuminance of the light projected to the edges of objects (such as pictures, notice boards, and advertising boards) will be greatly reduced. For example, the uniformity of the illuminance will be less than 10%. Even the dark area is not exposed to light, resulting in a strong contrast between light and dark, making it difficult to clearly see the object.

Therefore, it is necessary to develop a new type of projection lamp to solve the above problems.

One of the purposes of this creation is to provide a light-emitting diode projection lamp with adjustable light type, which can adjust the light distribution shape of a projection area by an adjustable shading device, such as a square projection shape, and project different angles at various angles Proportionally sized square.

In order to achieve the above object, an adjustable light type light emitting diode projection lamp according to an embodiment of the present invention includes: a light source disposed on a circuit board, the light source for providing a light; a reflector, along the An axis direction surrounds the light source and contacts the circuit board to reflect the light; an adjustable shading device is connected to the reflection member and the circuit board along the axis direction and surrounds the light source The adjustable shading device is used to adjust the light passing through the reflecting member. The adjustable shading device is provided with an opening and a plurality of adjusting members, and the adjusting members modulate the light through the opening to form a predetermined shaped irradiation area. The adjusting members adjust the size of the opening along a plane perpendicular to the axis direction to modulate the light passing through the adjustable shading device.

In an embodiment, the adjustable light-shielding device of the adjustable light type light emitting diode projection lamp includes: a first plate member connected to the hollow tube member for positioning the adjustment members, the first plate The first plate is provided with a first opening to allow the light to pass through the first plate; a second plate is combined with the first plate to locate the adjusting members, and the second plate is provided with a second opening Make that Light passes through the second plate member; a hollow tube member connected to the circuit board and receiving the reflecting member, the hollow tube member is provided with a third opening to allow the light to pass through the hollow tube member; and the adjustment members, arranged Between the first plate and the second plate, the first plate and the second plate clamp the adjustment members, and the adjustment members rotate and move on the plane to make the adjustment members The size of the opening is adjusted on the plane, wherein the interface between the first plate and the second plate is defined as the plane.

In one embodiment, the adjustable shading device further includes a plurality of first positioning pins and a plurality of second positioning pins, which are disposed between the first plate member and the second plate member for positioning the adjusting members.

In one embodiment, the adjusting members of the adjustable light-type light emitting diode projection lamp include: a first adjusting member provided with at least a first guide groove; and a second adjusting member on the plane. Opposed to the first adjustment member, the second adjustment member is provided with at least a second guide groove; and a pair of third adjustment members are disposed opposite to each other on the plane, the first adjustment member, the second adjustment member And the pair of third adjusting members are adjacently connected to form the opening. Each pair of third adjusting members is provided with at least one third guide groove, and the first positioning pins pass through the first of the first adjusting members. The guide grooves and the third guide grooves of the third adjustment members, and the second positioning pins pass through the second guide grooves of the second adjustment members.

In an embodiment, the first adjusting member moves in a direction through the first positioning tip of the first guide slot on the first plate, and the second adjusting member moves through the second guide slot in the first guiding slot. The second positioning tip on the first plate moves along the direction.

In an embodiment, the pair of third adjusting members moves and rotates through the first positioning pin on the first plate through the third guide groove.

In an embodiment, the aspect ratio of the irradiation area is selected from any one of 3: 4, 1: 1, and 4: 3.

In one embodiment, the light source includes at least one light emitting diode light source.

The adjustable light-type light-emitting diode projection lamp of this creation includes: a light source arranged on a circuit board, the light source is used to provide a light; a reflecting member surrounds the light source and contacts along an axis direction; The circuit board is used to reflect the light; an adjustable shading device is connected to the reflecting member and the circuit board along the axis direction and surrounds the light source. The adjustable shading device is used for Adjusting the light passing through the reflecting member, the adjustable shading device is provided with an opening and a plurality of adjusting members, and the adjusting members modulate the light through the opening to form a predetermined shaped irradiation area, wherein the adjusting members are perpendicular to The size of the opening is adjusted on a plane in the axis direction to modulate the light passing through the adjustable shading device. The adjustable shading device includes a first plate member connected to the hollow tube member for positioning the Adjusting members, the first plate member is provided with a first opening to allow the light to pass through the first plate member; a second plate member, combined with the first plate member, is used for positioning the adjusting members Member, the second plate member is provided with a second opening, so that the light passing through the second plate member.

According to the above, the adjustable light type light-emitting diode projection lamp of this creation uses an adjustable shading device to adjust the light distribution shape of a projection area, such as a square projection shape, and projects different proportion sizes at various angles Square.

100‧‧‧ light source

102‧‧‧Circuit Board

300‧‧‧Reflector

401‧‧‧ Adjustable shading device

402‧‧‧ opening

404‧‧‧Adjustment

404a‧‧‧First adjustment

404b‧‧‧Second adjustment

404c‧‧‧Third adjustment

406a‧‧‧First plate

406b‧‧‧Second plate

408‧‧‧ hollow tube

410a‧‧‧First opening

410b‧‧‧Second opening

410c‧‧‧Third opening

412a‧‧‧first positioning tip

412b‧‧‧Second positioning tip

414a‧‧‧First guide slot

414b‧‧‧Second guide groove

414c‧‧‧Third guide groove

AX‧‧‧Axis direction

D1‧‧‧ first direction

D2‧‧‧ Second direction

L‧‧‧light

P‧‧‧plane

R‧‧‧ Projection area

θ‧‧‧ predetermined angle

In order to more clearly explain the technical solution in this creative embodiment, the drawings needed to be used in the description of the embodiment will be briefly introduced below: FIG. 1 is an exploded view of a light-emitting diode projection lamp with adjustable light type according to an embodiment of the present invention.

FIG. 2 is a top view of a light-emitting diode projection lamp with an adjustable light type according to an embodiment of the present invention.

FIG. 3A is a perspective view showing the operation configuration of the light-emitting diode projection lamp with adjustable light type according to the first embodiment of the present invention.

FIG. 3B is a top view of the light-emitting diode projection lamp with adjustable light type according to the first embodiment of the present invention.

FIG. 3C is a schematic diagram showing a circular projection area formed by the light-emitting diode projection lamp with adjustable light type according to the first embodiment of the present invention.

FIG. 4A is a top view of a light-emitting diode projection lamp with an adjustable light type according to a second embodiment of the present invention.

FIG. 4B is a schematic diagram illustrating a square projection area formed by the light-emitting diode projection lamp with adjustable light type according to the second embodiment of the present invention.

FIG. 5 is a perspective view showing an operation configuration of forming an elliptical projection area by an adjustable light type light emitting diode projection lamp according to a third embodiment of the present invention.

FIG. 6A is a perspective view showing the operation configuration of the light-emitting diode projection lamp with adjustable light type according to the fourth embodiment of the present invention.

FIG. 6B is a top view of the light-emitting diode projection lamp with adjustable light type according to the fourth embodiment of the present invention.

FIG. 6C is a schematic diagram of a photo of a light emitting diode projection lamp with adjustable light type in the fourth embodiment of the present invention forming a square 1: 1 projection area.

FIG. 7A is a perspective view showing the operation configuration of a light-emitting diode projection lamp with an adjustable light type according to a fifth embodiment of the present invention.

FIG. 7B is a top view of a light-emitting diode projection lamp with an adjustable light type according to a fifth embodiment of the present invention.

FIG. 7C is a schematic diagram showing a photo of an adjustable light type light emitting diode projection lamp forming a square 3: 4 projection area according to the fifth embodiment of the present invention.

FIG. 8A is a perspective view showing the operation configuration of a light-emitting diode projection lamp with an adjustable light type according to a sixth embodiment of the present invention.

FIG. 8B is a top view of a light-emitting diode projection lamp with an adjustable light type according to a sixth embodiment of the present invention.

FIG. 8C is a schematic diagram showing a photo of an adjustable light type light emitting diode projection lamp forming a square 4: 3 projection area according to a sixth embodiment of the present invention.

Please refer to the drawings, where the same component symbols represent the same components or similar components. The principle of this creation is illustrated by implementation in an appropriate environment. The following description is based on the exemplified specific embodiments of the present invention, which should not be construed as limiting other specific embodiments of the present invention that are not described in detail herein.

FIG. 1 is an exploded view of a light-emitting diode projection lamp with adjustable light type according to an embodiment of the present invention. FIG. 2 is a top view of a light-emitting diode projection lamp with an adjustable light type according to an embodiment of the present invention. The adjustable light-type light-emitting diode projection lamp includes a light source 100, a reflector 300, and an adjustable shading device 401. The light source 100 is disposed on the circuit board 102, and the light source 100 is used to provide light L. The circuit board 102 is used to control the light source 100 to be turned on and off. The circuit board 102 is, for example, a printed circuit board or a copper substrate, or a substrate other than a circuit board. The circuit board 102 or the substrate is used to fix the light source 100 and has a heat dissipation effect. In one embodiment, the light source 100 includes at least one light emitting diode light source, as shown in FIG. 1.

As shown in FIG. 1, the reflector 300 surrounds the light source 100 along an axis direction AX and contacts the circuit board 102 to reflect the light L. For example, the inner surface of the reflector 300 reflects the light L. An adjustable shading device 401 is connected to the reflector 300 and the circuit board 102 along the axis direction AX and surrounds the light source 100. The adjustable shading device 401 is used to adjust the light passing through the reflector 300. Light L. The adjustable shading device 401 is provided with an opening 402 and a plurality of adjusting members 404. The adjusting members 404 modulate the light L through the opening 402 to form a predetermined shaped irradiation area. The adjusting members 404 are perpendicular to The size of the opening 402 is adjusted on the plane P of the axis direction AX to modulate the light L passing through the adjustable shading device 401.

In FIG. 1, the adjustable shading device 401 further includes a first plate 406 a, a second plate 406 b, and a hollow tube 408. A first plate member 406a is connected to the hollow tube member 408 for positioning the adjusting members 404. The first plate member 406a is provided with a first opening 410a to allow the light L to pass through the first plate member 406a. The second plate 406b is combined with the first plate 406a to locate the adjusting members 404. The second plate 406b is provided with a second opening 410b to allow the light L to pass through the second plate 406b. A hollow cylindrical member 408 is connected to the circuit board 102 and accommodates the reflective member 300. The hollow cylindrical member 408 is provided with a third opening 410c to allow the light L to pass through the hollow cylindrical member 408. The adjusting members 404 are disposed between the first plate member 406a and the second plate member 406b. The first plate member 406a and the second plate member 406b sandwich the adjusting members 404. The plane P is rotated and moved, so that the adjusting members 404 adjust the size of the opening 402 on the plane P. The first plate 406a and the The interface between the second plates 406b is defined as the plane P.

As shown in FIG. 1 and FIG. 2, the adjustable shading device 401 further includes a plurality of first positioning pins 412 a and a plurality of second positioning pins 412 b, which are disposed on the first plate 406 a and the second plate. Between 406b, the adjusting members 404 are positioned.

As shown in FIG. 1 and FIG. 2, the adjusting members 401 include a pair of first adjusting members 404 a, a second adjusting member 404 b, and a pair of third adjusting members 404 c. The first adjustment member 404a is provided with at least a first guide groove 414a; the second adjustment member 404b is disposed opposite to the first adjustment member 404a on the plane P, and the second adjustment member 404b is provided with at least a second guide引 槽 414b. A pair of third adjusting members 404c are oppositely disposed on the plane P. The first adjusting member 404a, the second adjusting member 404b, and the pair of third adjusting members 404c are adjacently connected to form the opening 402. Each of the pair The third adjustment member 404c is provided with at least a third guide groove 414c, and the first positioning pins 412a pass through the first guide grooves 414a of the first adjustment members 404a and the first adjustment grooves of the third adjustment members 404c. Three guiding grooves 414c, the first positioning pins 412a are used to combine the first plate 406a, the second plate 406b, the first adjusting member 404a, and the pair of third adjusting members 404c. The second positioning pins 412b pass through the second guide grooves 414b of the second adjusting members 404b, and the second positioning pins 412b are used to combine the first plate 406a, the second plate 406b, and the second plate 406b. Second adjustment piece 404b.

FIG. 3A is a perspective view showing the operation configuration of the light-emitting diode projection lamp with adjustable light type according to the first embodiment of the present invention. FIG. 3B is a top view of the light-emitting diode projection lamp with adjustable light type according to the first embodiment of the present invention. FIG. 3C is a schematic diagram showing a circular projection area formed by the light-emitting diode projection lamp with adjustable light type according to the first embodiment of the present invention. The light-emitting diode projection lamp with adjustable light type is fixed on the ceiling above the axis direction AX and the ceiling at 90 degrees and illuminates the ground vertically, as shown in FIG. 3A; wherein the adjusting member 404 The plane P moves to the outermost side along the first direction D1 and the second direction D2, as shown in FIG. 3B; the adjustable light-type light emitting diode projection lamp forms a circular projection area R, as shown in FIG. 3C.

FIG. 4A is a top view of a light-emitting diode projection lamp with an adjustable light type according to a second embodiment of the present invention. FIG. 4B is a schematic diagram illustrating a square projection area formed by the light-emitting diode projection lamp with adjustable light type according to the second embodiment of the present invention. A perspective view of the operation configuration of the adjustable light type LED projection lamp, as shown in FIG. 3A, the adjustable light type LED projection lamp is fixed on the ceiling above the axis direction AX and the ceiling by 90 degrees, and Vertically illuminate the ground; wherein the adjusting member 404 moves toward the center of the light source along the first direction D1 and the second direction D2 on the plane P, as shown in FIG. 4A; the adjustable light type light emitting diode projection lamp forms a square projection area, As shown in Figure 4B.

FIG. 5 is a perspective view showing an operation configuration of forming an elliptical projection area by an adjustable light type light emitting diode projection lamp according to a third embodiment of the present invention. The adjustable light type light emitting diode projection lamp is fixed on the ceiling above and illuminates the wall surface with a predetermined angle θ in the axial direction AX and the ceiling, as shown in FIG. 5, forming an elliptical projection area. The predetermined angle can be arbitrarily adjusted.

FIG. 6A is a perspective view showing the operation configuration of the light-emitting diode projection lamp with adjustable light type according to the fourth embodiment of the present invention. FIG. 6B is a top view of the light-emitting diode projection lamp with adjustable light type according to the fourth embodiment of the present invention. FIG. 6C is a schematic diagram of a photo of a light emitting diode projection lamp with adjustable light type in the fourth embodiment of the present invention forming a square 1: 1 projection area. The light-emitting diode projection lamp with adjustable light type is fixed on the ceiling above and illuminates the wall surface at a predetermined angle with the axis direction AX and the ceiling. As shown in FIG. 6A, the predetermined angle θ can be adjusted arbitrarily. The adjusting member 404 faces the light along the first direction D1 and the second direction D2 on the plane P. The source center moves, as shown in FIG. 6B; in one embodiment, the first adjusting member 404a and the second adjusting member 404b move toward the center of the light source; the first adjusting member 404a passes through the first guide groove 414a on the first plate 406a. The first positioning pin 412a on the first moving piece moves along the first direction D1; the second positioning pin 412b on the first plate 406a of the second adjusting member 404b moves along the first direction D1 through the second guide groove 414b; two The third adjusting member 404c moves and / or rotates along the second direction D2 through the first positioning tip 412a of the third guide groove 414c on the first plate 406a. The positioning tip 412a is rotated as a center to form an opening 402. The ratio of the length L to the width W of the square projection area R of the adjustable light emitting diode projection lamp is 1: 1, and the opening 402 corresponds to the The square projection area R is shown in FIG. 6C.

FIG. 7A is a perspective view showing the operation configuration of a light-emitting diode projection lamp with an adjustable light type according to a fifth embodiment of the present invention. FIG. 7B is a top view of a light-emitting diode projection lamp with an adjustable light type according to a fifth embodiment of the present invention. FIG. 7C is a schematic diagram showing a photo of an adjustable light type light emitting diode projection lamp forming a square 3: 4 projection area according to the fifth embodiment of the present invention. The adjustable light type light emitting diode projection lamp is fixed on the ceiling above and illuminates the wall surface with a predetermined angle θ in the axial direction AX and the ceiling. As shown in FIG. 7A, the predetermined angle can be arbitrarily adjusted. The adjusting member 404 moves toward the light source center along the first direction D1 on the plane P, as shown in FIG. 7B. In one embodiment, the first adjusting member 404a and the second adjusting member 404b move toward the light source center; the first adjusting member 404a moves through the first positioning pin 412a on the first plate 406a through the first guide groove 414a along the first direction D1; and the second adjustment member 404b passes through the second guide groove 414b on the first plate 406a. The two positioning pins 412b move along the first direction D1; the two third adjustment members 404c move toward the center of the light source, and the two third adjustment members 404c pass through the third positioning groove 414c on the first plate 406a of the first positioning pin 412a moves and / or rotates in the second direction D2, here two The third adjusting member 404c is rotated around the first positioning tip 412a to form the opening 402, but is not limited to the second direction D2, and can be moved and / or rotated in any direction; the adjustable light-emitting light emitting diode The ratio of the length L to the width W of the square projection area R formed by the volume projection lamp is 3: 4, and the opening 402 corresponds to the square projection area R, as shown in FIG. 7C.

FIG. 8A is a perspective view showing the operation configuration of a light-emitting diode projection lamp with an adjustable light type according to a sixth embodiment of the present invention. FIG. 8B is a top view of a light-emitting diode projection lamp with an adjustable light type according to a sixth embodiment of the present invention. FIG. 8C is a schematic diagram showing a photo of an adjustable light type light emitting diode projection lamp forming a square 4: 3 projection area according to a sixth embodiment of the present invention. The adjustable light type light emitting diode projection lamp is fixed on the ceiling above and illuminates the wall surface with a predetermined angle θ in the axial direction AX and the ceiling, as shown in FIG. 8A, the predetermined angle can be adjusted arbitrarily. The adjusting member 404 moves toward the light source center along the first direction D1 on the plane P, as shown in FIG. 8B. In one embodiment, the first adjusting member 404a and the second adjusting member 404b move toward the light source center; the first adjusting member 404a moves through the first positioning pin 412a on the first plate 406a through the first guide groove 414a along the first direction D1; and the second adjustment member 404b passes through the second guide groove 414b on the first plate 406a. The two positioning pins 412b move along the first direction D1; the two third adjustment members 404c move toward the center of the light source, and the two third adjustment members 404c pass through the third positioning groove 414c on the first plate 406a of the first positioning pin 412a moves and / or rotates along the second direction D2. Here, the two third adjusting members 404c rotate around the first positioning tip 412a to form the opening 402, but it is not limited to the second direction D2, and may be Move and / or rotate in any direction; the ratio of the length L to the width W of the adjustable light-emitting LED projection lamp forming a square projection area R is 4: 3, and the opening 402 corresponds to the square projection area R , As shown in Figure 8C.

The adjustable light-type light-emitting diode projection lamp of this creation The shading device adjusts the light distribution shape of a projection area, such as a square projection shape, and projects squares of different proportions at various angles.

Although this creation has been disclosed as above with a preferred embodiment, it is not intended to limit this creation. Those with ordinary knowledge in the technical field to which this creation belongs can make various changes and modifications without departing from the spirit and scope of this creation. Retouching, so the scope of protection of this creation shall be determined by the scope of the attached patent application.

Claims (16)

An adjustable light type light-emitting diode projection lamp includes: a light source disposed on a circuit board, the light source for providing a light; and a reflector surrounding the light source along an axis direction and contacting the light source. A circuit board for reflecting the light; an adjustable shading device connected to the reflecting member and the circuit board along the axis direction and surrounding the light source; the adjustable shading device used to adjust the passage The light of the reflecting member, the adjustable shading device is provided with an opening and a plurality of adjusting members, and the adjusting members modulate the light through the opening to form a predetermined shaped irradiation area, wherein the adjusting members are perpendicular to the axis The size of the opening is adjusted on a plane in the direction to modulate the light passing through the adjustable shading device. The adjustable light type light-emitting diode projection lamp according to item 1 of the scope of patent application, wherein the adjustable shading device includes: a first plate member connected to the hollow tube member for positioning the adjustment members The first plate is provided with a first opening to allow the light to pass through the first plate; a second plate is combined with the first plate to locate the adjustment members, and the second plate is provided There is a second opening to allow the light to pass through the second plate; a hollow tube member connected to the circuit board and receiving the reflecting member, the hollow tube is provided with a third opening to allow the light to pass through the hollow tube And the adjustment members are disposed between the first plate member and the second plate member, the first plate member and the second plate member clamp the adjustment members, and the adjustment members rotate on the plane And moving to make the adjusting members adjust the size of the opening on the plane, wherein the interface between the first plate and the second plate is defined as the plane. The adjustable light-type light emitting diode projection lamp as described in the second item of the patent application scope, wherein the adjustable shading device further includes a plurality of first positioning pins and a plurality of second positioning pins, which are disposed on the first plate member. And the second plate member for positioning the adjusting members. The adjustable light-type light-emitting diode projection lamp as described in item 3 of the scope of patent application, wherein the adjustment members include: a first adjustment member provided with at least a first guide groove; a second adjustment member Is disposed opposite to the first adjustment member on the plane, the second adjustment member is provided with at least a second guide groove; and a pair of third adjustment members are disposed opposite to each other on the plane, the first adjustment member, The second adjustment member and the pair of third adjustment members are adjacently connected to form the opening. Each pair of the third adjustment members is provided with at least a third guide groove, and the first positioning pins pass through the first adjustment members. The first guide grooves of the adjustment member and the third guide grooves of the third adjustment member, and the second positioning tips pass through the second guide grooves of the second adjustment member. The adjustable light-type light emitting diode projection lamp as described in item 4 of the scope of patent application, wherein the first adjusting member passes the first positioning tip of the first guide groove on the first plate along the Moving in the direction, the second adjusting member moves in the direction through the second positioning tip of the second guide groove on the first plate. The adjustable light-type light-emitting diode projection lamp as described in item 4 of the scope of patent application, wherein the pair of third adjustment members move through the third positioning groove on the first positioning tip of the first plate member. As well as turning. The adjustable light-type light-emitting diode projection lamp as described in item 1 of the scope of patent application, wherein the aspect ratio of the illuminated area is selected from any of 3: 4, 1: 1, and 4: 3 . The adjustable light type light emitting diode projection lamp according to item 1 of the scope of patent application, wherein the light source includes at least one light emitting diode light source. An adjustable light type light-emitting diode projection lamp includes: a light source disposed on a circuit board, the light source for providing a light; and a reflector surrounding the light source along an axis direction and contacting the light source. A circuit board for reflecting the light; an adjustable shading device connected to the reflecting member and the circuit board along the axis direction and surrounding the light source; the adjustable shading device used to adjust the passage The light of the reflecting member, the adjustable shading device is provided with an opening and a plurality of adjusting members, and the adjusting members modulate the light through the opening to form a predetermined shaped irradiation area, wherein the adjusting members are perpendicular to the axis The size of the opening is adjusted on a plane in the direction to modulate the light passing through the adjustable shading device. The adjustable shading device includes a first plate member connected to the hollow tube member for positioning the adjustments. The first plate is provided with a first opening to allow the light to pass through the first plate; and a second plate is combined with the first plate to locate the adjustments. Member, the second plate member is provided with a second opening, so that the light passing through the second plate member. The adjustable light type light-emitting diode projection lamp according to item 9 of the scope of patent application, wherein the adjustable shading device further comprises: a hollow tube member connected to the circuit board and receiving the reflective member, the hollow tube The member is provided with a third opening to allow the light to pass through the hollow tube member; and the adjusting members are disposed between the first plate member and the second plate member, the first plate member and the second plate member Clamping the adjustment members, the adjustment members rotate and move on the plane, so that the adjustment members adjust the size of the opening on the plane, wherein the interface between the first plate and the second plate Defined as the plane. The adjustable light type light emitting diode projection lamp according to item 10 of the scope of patent application, wherein the adjustable shading device further includes a plurality of first positioning pins and a plurality of second positioning pins, which are disposed on the first plate member. And the second plate member for positioning the adjusting members. The adjustable light type light-emitting diode projection lamp according to item 11 of the scope of patent application, wherein the adjustment members include: a first adjustment member provided with at least a first guide groove; a second adjustment member Is disposed opposite to the first adjustment member on the plane, the second adjustment member is provided with at least a second guide groove; and a pair of third adjustment members are disposed opposite to each other on the plane, the first adjustment member, The second adjustment member and the pair of third adjustment members are adjacently connected to form the opening. Each pair of the third adjustment members is provided with at least a third guide groove, and the first positioning pins pass through the first adjustment members. The first guide grooves of the adjustment member and the third guide grooves of the third adjustment member, and the second positioning tips pass through the second guide grooves of the second adjustment member. The adjustable light-type light emitting diode projection lamp according to item 12 of the scope of patent application, wherein the first adjusting member passes the first positioning tip of the first guide groove on the first plate along the Moving in the direction, the second adjusting member moves in the direction through the second positioning tip of the second guide groove on the first plate. The adjustable light-type light-emitting diode projection lamp as described in item 12 of the scope of patent application, wherein the pair of third adjusting members move through the third positioning groove on the first positioning tip of the first plate member. As well as turning. The adjustable light type light-emitting diode projection lamp as described in item 9 of the scope of patent application, wherein the aspect ratio of the illuminated area is selected from any of 3: 4, 1: 1, and 4: 3 . The adjustable light type light emitting diode projection lamp as described in item 9 of the scope of the patent application, wherein the light source includes at least one light emitting diode light source.