CN213957818U

CN213957818U - Projection element of spot lamp

Info

Publication number: CN213957818U
Application number: CN202022544348.0U
Authority: CN
Inventors: 王笃群
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-08-13
Anticipated expiration: 2030-11-06

Abstract

The utility model belongs to the technical field of portable luminous projection arrangement. The problem of prior art exist to change the projection pattern, it is not very convenient is solved. The projection element of the spotlight comprises a shell (1), wherein a channel (2) is arranged in the shell (1), a convex lens (3) is arranged at the outer end of the channel (2), an image-text film (4) is arranged at the inner end of the channel (2), the distance between the image-text film (4) and the convex lens (3) is the focal length of the convex lens (3), and an LED lamp (5) is arranged on the inner side of the image-text film (4). The LED projection lamp has the advantages of good electricity-saving light condensation, long light irradiation distance, vibration damage resistance and light weight, and is convenient to be fixed on an object through adhesive such as double-sided adhesive or a clamp for projection irradiation.

Description

Projection element of spot lamp

Technical Field

The utility model belongs to the technical field of portable luminous projection arrangement.

Background

Chinese patent application publication No. CN104296005A discloses a lamp, in particular to a projection lamp, which comprises a lamp housing, a lamp panel arranged in the lamp housing, and a lamp bead arranged on the upper portion of the lamp panel, wherein a printing layer printed with a pattern is arranged on the top of the lamp housing, the printing layer is detachably connected with the lamp housing, a lens or a lens group is arranged between the top of the lamp housing and the lamp bead, and light emitted by the lamp bead is emitted through the lens and is emitted through the printing layer, so that the pattern is projected to the outside; the top of lamp body is equipped with the guide rail that is used for installing the printing layer, and the printing layer passes through the detachable connection of guide rail with the lamp body. The light emitted by the lamp beads of the utility model is projected out through the lens or the lens group and then is arranged on the printing layer, the pattern of the printing layer is projected on the ground or the wall surface, if the light is used on the stage, the cost of the projector and the electric energy cost are directly saved, and the projection effect is vivid; if the lamp is used for household decoration, the projected patterns can be replaced at will, and the patterns are bright and vivid, and have the functions of projecting images besides the lighting function, so that the lamp has two purposes. In the description it is mentioned in particular that a printed layer 4 is provided on top of the lamp cover 12, that the printed layer 4 is provided with a pattern, and that the printed layer 4 is fixed to the lamp cover 12 or detachably connected thereto. Therefore, it is not convenient to replace the projected pattern.

Disclosure of Invention

An object of the utility model is to provide a small, light in weight, portable and installation, convenient shot-light projection element is changed to the pattern.

For realizing the utility model discloses a purpose, shot-light projection element, including the casing, the casing in be equipped with the passageway, passageway outer end be equipped with convex lens, passageway inner be equipped with the picture and text film, picture and text film and convex lens between the distance be convex lens's focus, picture and text film inboard be equipped with the LED lamp.

When light emitted by the LED lamp irradiates on the image-text film, the light can penetrate through the image-text on the image-text film to the convex lens, and the image-text is amplified by the convex lens and is emitted outwards, so that a larger plane image-text can be reflected on a plane after the light irradiates on the plane. The plane image-text is opposite to the direction above the image-text film, so that when in use, the projection element of the spotlight needs to be turned over by 180 degrees to obtain a positive image-text. The projection element of the spotlight has the advantages of small volume, light weight, simple structure and low manufacturing cost. The device can be used as a component, is convenient to carry and install and fix on fixed objects such as walls and ceilings, or movable objects such as sliding and rotating devices, and carries out decoration or advertising by using patterns, characters and trademarks projected from the image-text film.

Drawings

Fig. 1 is a schematic structural diagram of the projection element of the present invention.

Fig. 2 is a structural diagram of a first embodiment of the projection element of the present invention.

Fig. 3 is a circuit diagram of fig. 2.

Fig. 4 is a sectional view of the structure of the case at the battery mounting portion of fig. 2.

Fig. 5 is a cross-sectional view of a second embodiment of the projection device of the present invention.

Fig. 6 is a perspective assembly view of a second embodiment of the projection device of the present invention.

Detailed Description

The following detailed description of the embodiments of the projection device of the present invention will be made with reference to the accompanying drawings:

as shown in fig. 1, the projection element of the present spot lamp comprises a housing 1, wherein a channel 2 is provided in the housing 1, as shown in dotted lines. The outer end of the channel 2 is provided with a convex lens 3, the inner end of the channel 2 is provided with an image-text film 4, the distance between the image-text film 4 and the convex lens 3 is the focal length of the convex lens 3, and the inner side of the image-text film 4 is provided with an LED lamp 5, namely the tail end of the channel 2.

The pattern and text film 4 is a black and white film or a color film. The content on the negative film can be patterns, characters or trademarks and the like. When the LED lamp 5 is electrified and emits light, the light emitted from the front end of the LED lamp irradiates the graphic film 4, so that tiny patterns, characters or trademarks and the like on the graphic film 4 are amplified by the convex lens 3 and irradiate a distant plane to form an amplified light shadow of the patterns, the characters or the trademarks and the like. The outer diameters of the selected convex lens 3 and the selected picture and text film 4 are equivalent to the outer diameter of the LED lamp 5, so that the whole spotlight projection element has very small volume, light weight and low manufacturing cost. The LED lamp can form a component after being installed in the shell 1, is convenient to carry and use, and is also convenient to install on other equipment, such as lamps of restaurants, hotels and the like, for decoration or advertising. Adopt 5 power saving of LED lamp and spotlight well, light shines far, is afraid of the vibration damage, and weight is light again, can fix through the viscose like double faced adhesive tape or clip and carry out the projection and shine on the object. When the object is stationary, a beam of static pattern light can be emitted from the object and irradiated onto a plane such as a wall or a floor. When the object is in motion, such as rotation, a beam of light with dynamic patterns can be emitted from the object to irradiate a plane such as a wall surface or a ground surface, and the pattern can be seen to rotate on the plane. It is also convenient to hand the shot-light projection element to wave the projection and shine, for example use picture and text film 4 with figure cooperation characters to teach children to read and read characters on the wall in kindergarten, can rock the projected image and make some actions corresponding with the figure meaning simultaneously, play the effect of suggestion, these all rely on the light and handy, small of shot-light projection element.

Fig. 2 shows a first embodiment of the projection element of the lamp, the housing 1 being provided with a base 6 and a cover 7, the channel 2 being arranged on the base 6, and the convex lens 3, the graphic film 4 and the LED lamp 5 being fixed on the base 6.

The cover 7 is opened, the image-text film 4 arranged on the base 6 can be replaced, and the LED lamps 5 with different brightness or colors can also be replaced according to the requirements, thereby being particularly convenient for users to use.

A lens clamping groove 8 is arranged in the base 6, and the convex lens 3 is fixed in the lens clamping groove 8.

A pair of lens pockets 8 are located on the bottom surface within the base 6. The convex lens 3 can be placed in a pair of lens slots 8 and clamped and fixed on the base 6 by the notches. The convex lens 3 can be made of transparent plastic or different materials such as glass or quartz according to the requirements of users. The convex lens 3 made of whatever material is installed and replaced.

The base 6 is provided with a film clamping groove 9, the image-text film 4 is arranged in the film clamping groove 9 and fixed, and as long as the image-text film 4 is arranged, the distance from the film clamping groove 9 to the convex lens 3 can be ensured to be equal to a focal length.

The base 6 is provided with a lamp groove 10, and the LED lamp 5 is arranged in the lamp groove 10 and fixed.

Because the convex lens 3, the image-text film 4 and the LED lamp 5 are all arranged in corresponding grooves of the same base 6, the assembly is simple and rapid, and the manufacturing cost is greatly reduced.

The base 6 and the cover 7 are made of plastic. The plastic pipe is manufactured by an injection molding process, and not only has an exquisite structure, but also has low cost and easily controlled dimensional precision. The lens card slot 8, the film card slot 9 and the lamp slot 10 are formed by injection molding of the base 6 in one step.

When the cover 7 is covered on the base 6, the inner surface of the cover 7 is blocked at the top ends of the convex lens 3, the film clamping groove 9 and the LED lamp 5, so that the convex lens 3, the image-text film 4 and the LED lamp 5 can be prevented from shaking in the shell 1.

Since the inner face of the cover 7 is stopped at the top ends of the convex lens 3, the film slot 9 and the LED lamp 5, the convex lens 3, the graphic film 4 and the LED lamp 5 do not fall out even if they are in a loose state in the lens slot 8, the film slot 9 and the lamp slot 10. The requirement on the manufacturing precision is not high, and the convex lens 3, the graphic film 4 and the LED lamp 5 are convenient to assemble and replace in the shell 1.

The base 6 and the cover 7, or the base 6 or the cover 7 is provided with a slot 21 corresponding to the film slot 9. The slot 21 has a length and width slightly greater than that of the film 4 so that the housing 1 can be inverted without opening the cover to allow the film 4 to fall downwardly from the slot 21 to allow for quick replacement of another film 4. At this time, the film 4 cannot fall out as long as the slot 21 is in the upward position. It is also possible to press the film strip with a finger on the slot 21 or to stick a non-stick film strip on the slot 21 to prevent the film strip 4 from falling out. The slot 21 can also be arranged on the base 6 corresponding to the film slot 9 according to the requirement, and the technical effect is the same as the slot 21 on the cover 7. When the base 6 and the cover 7 have the slot 21, the film 4 can be made into a belt shape, a pattern is arranged on a section of each length of the belt-shaped film 4, and a plurality of different patterns can be projected continuously by pulling the belt-shaped film 4.

An isolation receptacle 22 is provided at the cover 7 at a location corresponding between the two button cells 12. The circuit can be broken by inserting the graphic film 4 of fig. 2 through the isolation jack 22 and squeezing it between the two button cells 12. The dashed portion of the graphic film 4 in fig. 2 is not patterned, but is simply a light film. In fact, the graphic film 4 with graphics and texts can be directly inserted into the power circuit, and even an appropriate insulating sheet can be inserted into the power circuit to play a role in isolation, so that the combination of the isolation jack 22 and the insulating sheet provides an isolation space for the power circuit and a simple switch in the power circuit.

A battery groove 11 is arranged in the base 6, a button cell 12 is arranged in the battery groove 11, and a switch 13 which is connected in series in a loop of the LED lamp 5 and the button cell 12 is arranged on the base 6. As shown in fig. 2, the switch 13 is composed of a cylindrical plastic key and a metal plate in an "L" shape. One end of the L-shaped metal sheet is arranged in the battery groove 11 and is connected with the button cell 12. The other end of the L-shaped metal sheet is separated from one foot of the LED lamp 5, the outer end of the cylindrical plastic key is exposed out of the shell 1, and the inner end of the cylindrical plastic key is propped against the other end of the L-shaped metal sheet. When the plastic key is pressed down, the other end of the L-shaped metal sheet can be contacted with the other foot of the LED lamp 5, so that the switch is closed. When the press is lost, the switch is reset, the switch is disconnected, and the specific circuit connection is shown in figure 3.

Before the product leaves the factory, a piece of insulating paper can be placed in the isolation jack 22, so that the insulating paper is blocked between the two button cells 12, and one end of the insulating paper is exposed outside the shell 1. After the user buys the insulation paper, the user only needs to take out the insulation paper. Therefore, the wrong consequence that the switch 13 is electrified and shines when not in use due to the fact that the button is pressed to be conducted in the transportation and sale processes can be effectively avoided.

The button cell 12 is small and light, and the LED lamp 5 is not only small and light but also has small working current, high luminous efficiency and high brightness, is not afraid of vibration and not easy to damage, can be carried and used for a long time, is convenient for replacing electric energy, is similar to a flashlight, and can be used for walking illumination. The whole weight is only a few grams, and the wrist watch is fixed on the hand, and the weight of the wrist watch is hardly felt if the wrist watch is shaped like a band. Therefore, the element is held by hand or fixed on hand, so that the element can be conveniently shaken at any time, points to which projection display appears, and can enable the display position of the presented pattern on the wall surface to be freely controlled.

Fig. 5 to 6 show a second embodiment of the projection device of the spotlight, which also includes a housing 1, wherein the housing 1 is provided with a front tube 14 and a rear tube 15, the front tube 14 and the rear tube 15 are sleeved together, a channel 2 is formed between the front tube 14 and the rear tube 15, a convex lens 3 is fixed in the front end of the front tube 14, a graphic film 4 is arranged at the tail end of the front tube 14 or the front end of the rear tube 15, and an LED lamp 5 is arranged in the rear tube 15.

The front pipe 14 and the rear pipe 15 are round pipes made of plastic and are sleeved together to form a complete shell 1. By separating the front tube 14 and the rear tube 15, the teletext film 4 is exposed outside the housing 1 for replacement. The front tube 14 and the rear tube 15 are sleeved together, so that the image-text film 4 can be fixed at a set position in the shell 1. Has the advantages of simple structure and easy assembling, disassembling and replacing operation.

A lens limiting step 16 is arranged in the front end pipe orifice of the front pipe 14, and the convex lens 3 is arranged on the lens limiting step 16. As shown in figure 6, the tail part of the front tube 14 is provided with a lantern ring 23, a part of the front section of the rear tube 15 can be inserted into the lantern ring 23, the outer diameter of the lantern ring 23 is larger than the outer diameters of the front tube 14 and the rear tube 15, so that the front tube 14 and the rear tube 15 can be inserted and sleeved together, and the hole diameters of the channels 2 of the front tube 14 and the rear tube 15 are consistent.

When assembling the convex lens 3, as long as the convex lens 3 is pressed and extruded from the front end pipe orifice of the front pipe 14, the convex lens 3 is stopped against the surface of the lens limit step 16 and is clamped by the front end pipe orifice wall, thereby being fixed. The lens limiting step 16 can ensure that the convex lens 3 is arranged at a set position on the front tube 14, the structure is simple, and the installation operation of the convex lens 3 is rapid.

The image-text film 4 is a photographic film and has a front side and a back side and has an up-down forward direction and a backward direction. In order to ensure the correct projection, a film limiting step 17 is arranged in the pipe orifice at the front end of the rear pipe 15, the image-text film 4 is arranged on the film limiting step 17, after the rear pipe 15 and the front pipe 14 are sleeved and inserted together, the tail end of the front pipe 14 is propped against the limiting step 17 of the rear pipe 15, so that the image-text film 4 is limited in the limiting step 17. To prevent rotation between the front and

rear tubes

14, 15, but to prevent relative tilting of the image strip 4 during imaging, the collar 23 of the front tube 14 is provided with at least one inner flat surface 25, as shown in figure 5, corresponding to an outer flat surface 24 on the outer surface of the rear tube 15, as shown in figure 6. When the front tube 14 and the rear tube 15 are sleeved together, the inner plane 25 and the outer plane 24 are attached together, so that relative rotation between the front tube 14 and the rear tube 15 is effectively avoided.

The distance between the film limiting step 17 and the lens limiting step 16 is approximately equal to the focal length of the convex lens 3, when the convex lens 3 leans against the surface of the lens limiting step 16 and the image-text film 4 leans against the surface of the film limiting step 17, the distance from the convex lens 3 to the image-text film 4 is equal to the focal length.

The side wall of the film limiting step 17 is provided with a positioning lug 19, and the edge of the image-text film 4 is provided with a notch 18 corresponding to the shape of the positioning lug 19, so that when the image-text film 4 is placed in the film limiting step 17, the positioning lug 19 is propped against the notch 18 to ensure that the image-text film 4 cannot rotate, and thus, the image-text film 4 can keep shooting a positive image. The outer wall of the front tube 14 is provided with a longitudinal rib 20, so that when the projection is fixedly installed and used, the projection can be conveniently pulled out and fixed on the installed equipment, and the image inclination or overturn caused by rotation in the installed equipment can also be prevented. Since the notch 18 and the protrusion 19 are not visible in the front tube 14 and the rear tube 15, and the rib 20 is outside the front tube 14 and can be clearly seen, as shown in fig. 6, the protrusion 19 and the rib 20 are at an angle of 90 degrees, which is a specific fixed angle, so that the projected pictures and texts can be formed into positive images by adjusting the angle of observing the rib 20. The ribs 20 can be used to determine the direction of the graphic film 4 on the one hand and to fix and position the projector element on the other hand.

Claims

1. Shot-light projection component, including casing (1), characterized by casing (1) in be equipped with passageway (2), passageway (2) outer end be equipped with convex lens (3), passageway (2) inner be equipped with picture and text film (4), the distance between picture and text film (4) and convex lens (3) be the focus of convex lens (3), picture and text film (4) inboard be equipped with LED lamp (5).

2. A projector according to claim 1, characterised in that the housing (1) is provided with a base (6) and a cover (7), the channel (2) being provided on the base (6), and the lenticular lens (3), the graphic film (4) and the LED lamp (5) being fixed to the base (6).

3. A downlight projection element as claimed in claim 2, wherein said base (6) is provided with a lens pocket (8) and said convex lens (3) is disposed in said lens pocket (8).

4. A downlight projection element according to claim 2, wherein the base (6) is provided with a film slot (9) and the graphic film (4) is provided in the film slot (9).

5. A projector according to claim 4, characterised in that the base (6) and the cover (7) or the base (6) or the cover (7) are provided with slots (21) at positions corresponding to the film slots (9).

6. A downlight projection element as claimed in claim 2, wherein said base (6) is provided with a lamp recess (10) and said LED lamp (5) is fixed in said lamp recess (10).

7. A spotlight projection element according to claim 2, 3, 4, 5 or 6, characterized in that a battery compartment (11) is provided in the base (6), a button cell (12) is provided in the battery compartment (11), and a switch (13) is provided on the base (6) in series in the circuit of the LED light (5) and the button cell (12).

8. A downlight projection element according to claim 2, 3, 4, 5 or 6, wherein said base (6) has a battery well (11) therein, said battery well (11) having a button cell (12) therein, and said cover (7) having an isolating receptacle (22) at a location between said two button cells (12).

9. A projector according to claim 1, characterised in that said housing (1) is provided with a front tube (14) and a rear tube (15), said front tube (14) and rear tube (15) being coupled together, the intermediate duct between said front tube (14) and rear tube (15) forming the channel (2), said lenticular lens (3) being fixed in the front end of the front tube (14), the graphic film (4) being arranged at the rear end of the front tube (14) or at the front end of the rear tube (15), said LED lamp (5) being arranged in the rear tube (15).

10. A downlight projection element according to claim 9, wherein a lens retaining step (16) is provided in the front end opening of the front tube (14), and the convex lens (3) is provided on the lens retaining step (16).

11. A projector according to claim 9 or 10, wherein the rear tube (15) has a film stop step (17) in its front end opening, the photographic film (4) is disposed on the film stop step (17), the rear tube (15) is inserted into the rear end opening of the front tube (14), and the rear end of the front tube (14) abuts against the photographic film (4).

12. A projector according to claim 9 or 10, characterised in that the outer wall of the head tube (14) is provided with ribs (20).

13. A spotlight projection device according to claim 11, characterised in that the side wall of the film stop step (17) is provided with a positioning projection (19) and that the edge of the image-text film (4) is provided with a notch (18) corresponding to the shape of the positioning projection (19).

14. A projector according to claim 9 or 10, wherein the rear portion of the front tube (14) is provided with a collar (23), a portion of the front portion of the rear tube (15) is inserted into the collar (23) and sleeved together, the inner wall of the collar (23) of the front tube (14) is provided with at least one inner flat surface (25), and an outer flat surface (24) is correspondingly provided on the outer surface of the rear tube (15).