Rotary zoom lens assembly

Abstract

The rotary zoom lens assembly comprises a support base, a base concave cavity with an upward opening is formed in the support base, a lens and a zoom piece for locking the lens in the base concave cavity are sequentially arranged in the base concave cavity, and a positioning convex edge which extends outwards and abuts against the opening end of the support base is arranged at the upper end of the side face of the lens. The upper side surface of the lens and the lower side surface of the zoom sheet are respectively provided with a texture structure for zooming when the zoom sheet and the lens rotate relative to each other, the opening end of the support base is provided with a plurality of buckles extending upwards, the side surface of the zoom sheet is provided with a plurality of clamping blocks buckled with the buckles respectively, and the bayonet width of the buckles is greater than the width of the clamping blocks so that the zoom sheet can rotate relative to the lens. The upper side face of the lens and the lower side face of the zoom piece are respectively provided with a texture structure for zooming when the zoom piece and the lens rotate relative to each other, and the lens zooming function is achieved when the zoom piece is rotated.

Description

[Technical field]

[0001] The invention relates to a rotary zoom lens assembly. [Background Technology]

[0002] When the existing LED lamp lens assembly realizes zooming, the zooming is realized by telescopically adjusting the position of the lens. For example, the patent document with patent application number 202122577649.8 and patent name "A push-type zoom lens" discloses a push-type zoom lens, which includes a piston jacket and a lens body arranged in the piston jacket, and the lens body is connected to a rotating piston assembly that adjusts the distance between the lower side of the lens body and the lower side of the piston jacket by pressing the lens body. The lower side of the lens body is provided with a lens light inlet hole, and the rotating piston assembly is driven to rotate by pressing the lens body, thereby adjusting the distance between the lower side of the lens body and the lower side of the piston jacket to realize the zoom function. However, this telescopic focusing structure is complex, has high production costs, and has the problems of cumbersome assembly. It is also not easy to operate to realize telescopic adjustment and zooming. [Summary of the invention]

[0003] The invention overcomes the shortcomings of the prior art and provides a rotary zoom lens assembly.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A rotating zoom lens assembly, characterized in that it includes a bracket base, a base cavity opening upward is provided on the bracket base, a lens and a zoom piece locking the lens in the base cavity are sequentially provided in the base cavity, a positioning convex edge extending outward and pressing against the open end of the bracket base is provided at the upper end of the side surface of the lens, a texture structure is respectively provided on the upper side surface of the lens and the lower side surface of the zoom piece so that the zoom piece and the lens rotate relative to each other, a plurality of buckles extending upward are provided at the open end of the bracket base, a plurality of card blocks respectively buckled with the buckles are provided on the side surface of the zoom piece, and the buckle mouth width of the buckle is greater than the card block width so that the zoom piece can rotate relative to the lens.

[0006] The rotary zoom lens assembly as described above is characterized in that a sliding protrusion extending downward and capable of sliding on the upper side of the positioning protrusion is provided on the side surface of the zoom plate.

[0007] The rotary zoom lens assembly as described above is characterized in that: a plurality of positioning protrusions extending upward are provided at the open end of the bracket base, and a plurality of positioning notches respectively matched with the positioning protrusions are provided on the positioning protrusion edge.

[0008] A rotating zoom lens assembly as described above is characterized in that: the upper surface of the lens is provided with a lens upper groove in the shape of a cone, the bottom of the lens upper groove is provided with a lens bottom exit surface, the side surface of the lens upper groove forms a lens side exit surface, the bottom of the zoom piece is provided with a zoom piece cone portion extending downward and inserted into the lens upper groove, the bottom of the zoom piece cone portion is provided with a zoom piece bottom incident surface, the side surface of the zoom piece cone portion forms a zoom piece side incident surface, and texture structures are respectively arranged on the lens bottom exit surface, the lens side exit surface, the zoom piece bottom incident surface, and the zoom piece side incident surface.

[0009] A rotary zoom lens assembly as described above is characterized in that: a lens light inlet hole is opened at the lower incident end of the lens, a downwardly protruding arc-shaped incident surface of the lens bottom is provided at the bottom of the groove of the lens light inlet hole, and the side surface of the lens light inlet hole forms a lens side incident surface.

[0010] The rotary zoom lens assembly as described above is characterized in that a base light inlet hole is provided at the lower incident end of the base cavity below the lens light inlet hole.

[0011] A rotary zoom lens assembly as described above is characterized in that: the bottom of the groove of the base light inlet hole is provided with an upwardly protruding base bottom arc-shaped incident surface, the upper side of the base light inlet hole is provided with a base upper side arc-shaped exit surface, and a texture structure is provided on the base upper side arc-shaped exit surface.

[0012] The rotary zoom lens assembly as described above is characterized in that the texture structure is a laser engraved texture.

[0013] A rotating zoom lens assembly as described above is characterized in that: a frustum-shaped zoom plate groove is provided on the upper surface of the zoom plate, a zoom plate bottom exit surface is provided at the bottom of the zoom plate groove, and a side surface of the zoom plate groove forms a zoom plate side exit surface.

[0014] The rotary zoom lens assembly as described above is characterized in that the lens is a truncated cone lens whose upper surface diameter is longer than the lower surface diameter, and the base cavity is a truncated cone cavity for the truncated cone lens to be installed.

[0015] The beneficial effects of the present invention are:

[0016] The present invention respectively arranges texture structures on the upper side surface of the lens and the lower side surface of the zoom piece so that the zoom piece and the lens can be zoomed when they rotate relative to each other, thereby realizing the lens zoom function when the zoom piece is rotated and changing the LED beam angle. At the same time, a plurality of buckles are arranged at the open end of the bracket base, and a plurality of card blocks respectively buckled with the buckles are arranged on the side surface of the zoom piece, and the width of the buckle mouth of the buckle is made larger than the width of the card block so that the zoom piece can be rotated relative to the lens, limiting the rotation angle range of the zoom piece relative to the lens, thereby limiting the zoom range, and also realizing that the lens is locked on the bracket base by the zoom piece, simplifying the overall structure and facilitating production and assembly. [Drawings]

[0017] Figure 1 This is a structural diagram of Embodiment 1 of the present invention;

[0018] Figure 2 This is an exploded view of Embodiment 1 of the present invention;

[0019] Figure 3 This is a cross-sectional view of an assembled state of Embodiment 1 of the present invention;

[0020] Figure 4 It is a cross-sectional view of an exploded state of the first embodiment of the present invention;

[0021] Figure 5 Schematic diagram of a bracket base according to an embodiment of the present invention. [Specific implementation method]

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings.

[0023] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. In addition, the descriptions of "preferred", "sub-preferred", etc. in the present invention are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "preferred" or "sub-preferred" may explicitly or implicitly include at least one such feature.

[0024] like Figure 1-4As shown, a rotating zoom lens assembly includes a support base 1, a base cavity 11 with an opening upward is provided on the support base 1, a lens 2 and a zoom piece 3 for locking the lens 2 in the base cavity 11 are arranged in sequence in the base cavity 11, a positioning convex edge 21 extending outward and pressing against the open end of the support base 1 is provided on the upper end of the side of the lens 2, a texture structure 4 is respectively provided on the upper side of the lens 2 and the lower side of the zoom piece 3 to enable the zoom piece 3 and the lens 2 to rotate relative to each other when zooming, a plurality of buckles 12 extending upward are provided on the open end of the support base 1, a plurality of blocks 31 buckled with the buckles 12 are respectively provided on the side of the zoom piece 3, and the buckle width of the buckle 12 is greater than the width of the block 31 so that the zoom piece 3 can rotate relative to the lens 2. The texture structure 4 is a laser engraved texture, specifically a laser engraved gradient compound eye bead surface. When zooming in actual use, the zoom piece 3 is rotated to make the zoom piece 3 and the lens 2 rotate relative to each other, so that the focal length of the lens assembly is adjusted by the rotation change between the texture structure 4 on the upper side of the lens 2 and the texture structure 4 on the lower side of the zoom piece 3, the LED beam angle is changed, and the zoom operation is simplified. At the same time, the rotation angle range of the zoom piece 3 relative to the lens 2 is limited by the matching of the bayonet width of the buckle 12 and the width of the block 31, thereby limiting the zoom range of the lens assembly. In this case, the rotation angle range of the zoom piece 3 relative to the lens 2 is 0-15 degrees.

[0025] like Figure 1-4 As shown, a sliding protrusion 32 extending downward and capable of sliding on the upper side of the positioning protrusion 21 is provided on the side of the zoom plate 3, thereby reducing the contact area between the zoom plate 3 and the positioning protrusion 21 and reducing the friction between them, thereby better enabling the zoom plate 3 to rotate relative to the lens 2.

[0026] like Figure 1-4 As shown, the open end of the bracket base 1 is provided with a plurality of positioning protrusions 13 extending upward, and the positioning convex edge 21 is provided with a plurality of positioning recesses 22 respectively cooperating with the positioning protrusions 13, so that the lens 2 is fixed in the base cavity 2 of the bracket base 1 to prevent the lens 2 from rotating when the zoom plate 3 rotates.

[0027] like Figure 1-4As shown, the upper surface of the lens 2 is provided with a lens upper groove 23 in the shape of a cone, the bottom of the lens upper groove 23 is provided with a lens bottom exit surface 24, the side of the lens upper groove 23 forms a lens side exit surface 25, the bottom of the zoom sheet 3 is provided with a zoom sheet cone portion 33 extending downward and inserted into the lens upper groove 23, the bottom of the zoom sheet cone portion 33 is provided with a zoom sheet bottom incident surface 34, the side of the zoom sheet cone portion 33 forms a zoom sheet side incident surface 35, and the texture structure 4 is respectively arranged on the lens bottom exit surface 24, the lens side exit surface 25, the zoom sheet bottom incident surface 34, and the zoom sheet side incident surface 35; the upper surface of the zoom sheet 3 is provided with a zoom sheet groove 36 in the shape of a cone, and the zoom sheet The bottom of the groove 36 is provided with a zoom piece bottom exit surface 37, and the side of the zoom piece groove 36 forms a zoom piece side exit surface 38; in the first embodiment of the present case, the lower incident end of the lens 2 is provided with a lens light inlet hole 26, the bottom of the groove of the lens light inlet hole 26 is provided with a downwardly protruding lens bottom arcuate incident surface 27, and the side of the lens light inlet hole 26 forms a lens side incident surface 28, and the lower incident end of the base cavity 11 is provided with a base light inlet hole 14 below the lens light inlet hole 26; the bottom of the groove of the base light inlet hole 14 is provided with an upwardly protruding base bottom arcuate incident surface 15, and the upper side of the base light inlet hole 14 is provided with a base upper arcuate exit surface 16, and the upper arcuate exit surface 16 of the base is provided with a texture structure 4. During assembly, the LED lamp is installed on the base light inlet hole 14. When the LED light emits light, the LED light enters the LED light base light inlet 14 of the bracket base 1, passes through the arcuate incident surface 15 at the bottom of the base and the arcuate exit surface 16 on the upper side of the base, enters the lens light inlet 26 of the lens 2, passes through the arcuate incident surface 27 at the bottom of the lens and the incident surface 28 at the side of the lens, enters the upper groove 23 of the lens, passes through the exit surface 24 at the bottom of the lens and the exit surface 25 at the side of the lens, enters the zoom plate cone 33, then passes through the incident surface 34 at the bottom of the zoom plate and the incident surface 35 at the side of the zoom plate, enters the zoom plate groove 36, and finally exits the lens assembly from the exit surface 37 at the bottom of the zoom plate and the exit surface 38 at the side of the zoom plate. During the propagation of this light path, the focal length of the LED light in the lens assembly is changed under the action of the texture structure 4 respectively arranged on the exit surface 24 at the bottom of the lens, the exit surface 25 at the side of the lens, the incident surface 34 at the bottom of the zoom plate, and the incident surface 35 at the side of the zoom plate. The curved emission surface 16 on the upper side of the base is also provided with a texture structure 4, so as to better achieve focusing by changing the LED beam angle through rotation.

[0028] like Figure 1-4 As shown, the lens 2 is a truncated cone lens with an upper surface diameter length greater than a lower surface diameter length, and the base cavity 11 is a truncated cone cavity for the truncated cone lens 2 to be installed, so that the LED light can be reflected and transmitted to the maximum extent.

[0029] like Figure 5As shown, in the second embodiment of the present case, the difference compared with the first embodiment is that a base light inlet hole 14 is provided at the lower incident end of the base cavity 11 below the lens light inlet hole 26, so that the LED lamp can be directly installed on the base light inlet hole 14, and different LED light sources can be matched.

[0030] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or directly or indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A rotary zoom lens assembly, characterized in that: The invention comprises a support base (1), wherein a base cavity (11) opening upward is provided on the support base (1), a lens (2) and a zoom plate (3) locking the lens (2) in the base cavity (11) are arranged in sequence in the base cavity (11), a positioning convex edge (21) extending outward and pressing against the open end of the support base (1) is provided on the upper end of the side surface of the lens (2), a texture structure (4) which enables the zoom plate (3) and the lens (2) to change focus when they rotate relative to each other is provided on the upper side surface of the lens (2) and the lower side surface of the zoom plate (3), a plurality of buckles (12) extending upward are provided on the open end of the support base (1), a plurality of clamping blocks (31) respectively buckled with the buckles (12) are provided on the side surface of the zoom plate (3), and the clamping width of the buckle (12) is greater than the width of the clamping block (31) so that the zoom plate (3) can rotate relative to the lens (2).

2. A rotary zoom lens assembly according to claim 1, characterized in that: A sliding protrusion (32) extending downward and capable of sliding on the upper side of the positioning protrusion (21) is provided on the side surface of the zoom plate (3).

3. The rotary zoom lens assembly according to claim 1, characterized in that: The open end of the bracket base (1) is provided with a plurality of positioning protrusions (13) extending upward, and the positioning protrusion (21) is provided with a plurality of positioning recesses (22) respectively matched with the positioning protrusions (13).

4. The rotary zoom lens assembly according to claim 1, characterized in that: The upper surface of the lens (2) is provided with a lens upper groove (23) in the shape of a cone, the bottom of the lens upper groove (23) is provided with a lens bottom exit surface (24), the side of the lens upper groove (23) forms a lens side exit surface (25), the bottom of the zoom sheet (3) is provided with a zoom sheet cone portion (33) extending downward and inserted into the lens upper groove (23), the bottom of the zoom sheet cone portion (33) is provided with a zoom sheet bottom incident surface (34), the side of the zoom sheet cone portion (33) forms a zoom sheet side incident surface (35), and the texture structure (4) is respectively arranged on the lens bottom exit surface (24), the lens side exit surface (25), the zoom sheet bottom incident surface (34), and the zoom sheet side incident surface (35).

5. The rotary zoom lens assembly according to claim 4, characterized in that: A lens light inlet hole (26) is provided at the lower incident end of the lens (2), a downwardly protruding lens bottom arc-shaped incident surface (27) is provided at the groove bottom of the lens light inlet hole (26), and a lens side incident surface (28) is formed on the side surface of the lens light inlet hole (26).

6. The rotary zoom lens assembly according to claim 5, characterized in that: A base light inlet hole (14) is provided at the lower incident end of the base cavity (11) and is located below the lens light inlet hole (26).

7. The rotary zoom lens assembly according to claim 6, characterized in that: The bottom of the groove of the base light inlet hole (14) is provided with a base bottom arcuate incident surface (15) protruding upward, the upper side of the base light inlet hole (14) is provided with a base upper arcuate exit surface (16), and the base upper arcuate exit surface (16) is provided with a texture structure (4).

8. A rotary zoom lens assembly according to claim 4 or 7, characterized in that: The texture structure (4) is a laser engraved texture.

9. The rotary zoom lens assembly according to claim 4, characterized in that: The upper surface of the zoom plate (3) is provided with a frustum-shaped zoom plate groove (36), the bottom of the zoom plate groove (36) is provided with a zoom plate bottom exit surface (37), and the side surface of the zoom plate groove (36) forms a zoom plate side exit surface (38).

10. The rotary zoom lens assembly according to claim 4, characterized in that: The lens (2) is a truncated cone lens with an upper surface diameter length greater than a lower surface diameter length, and the base concave cavity (11) is a truncated cone concave cavity for the truncated cone lens (2) to be installed.

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