Light filtering device and stage lamp with same

Abstract

A light filtering device and a stage lamp with the same comprise a light filter disc, a first light filter and a second light filter, and the light filter disc comprises a mounting area located in the middle and a light filter mounting area located on the periphery of the mounting area. The optical filter installation area is provided with a plurality of first light through holes and second light through holes, wherein the first light through holes are matched with the first optical filters in size and are annularly and evenly distributed at intervals, and the second light through holes are matched with the second optical filters in size. The optical filter is characterized in that the first optical filter is a single-color optical filter, and the second optical filter is a multi-color optical filter.

Description

Technical Field

[0001] The present invention relates to the technical field of stage lights, and more specifically, to a light filtering device and a stage light having the same. Background Art

[0002] In the field of stage lighting, a filter disc is often used in stage lights. Generally, there is only a single color filtering area on the filter disc, and multiple filter sheets are arranged on the single color filtering area; when the filter sheet is rotated into the optical path, the light projected after passing through the filter sheet has a single color; it cannot meet the growing stage requirements. Another type uses a gradient filter sheet. When light passes through the gradient filter sheet, a part of the light is filtered to form a gradient light effect; there is only one gradient filter sheet on this filter disc. Existing filter discs cannot achieve a filter disc with multiple light output effects, so a light filtering device and a stage light having the same are proposed. Utility Model Content

[0003] The present utility model provides a light filtering device and a stage light having the same, which greatly enriches the light output effect of the stage light.

[0004] To solve the above problems, the present utility model adopts the following solutions:

[0005] On the one hand, a light filtering device includes a filter disc, a first filter sheet and a second filter sheet. The filter disc includes an installation area in the middle and a filter sheet installation area outside the installation area. The filter sheet installation area is provided with a number of light passing holes one that are annularly and evenly spaced and are adapted to the size of the first filter sheet, and light passing holes two that are adapted to the size of the second filter sheet; the first filter sheet is a single-color filter sheet, and the second filter sheet is a multi-color filter sheet.

[0006] As a further improvement of the present utility model, the second filter sheet is a single color sheet with multiple color areas.

[0007] As a further improvement of the present utility model, the second filter sheet is surrounded by a plurality of third filter sheets of different colors, and every two adjacent third filter sheets are in contact with each other.

[0008] As a further improvement of the present utility model, the number of the second filter sheets is one.

[0009] As a further improvement of the present utility model, the second filter sheet is composed of four third filter sheets of different colors but the same area, and the colors of the four filter sheets are red, yellow, green, and blue respectively.

[0010] As a further improvement of the present utility model, it further includes a positioning sheet. The positioning sheet is installed in the installation area of the filter disc, and the positioning sheet is provided with a first positioning edge having the same shape as the adjacent edge of the first filter sheet.

[0011] As a further improvement of the present utility model, it further includes a fourth filter with a gradually changing light filtering area. The fourth filter is an annular filter coaxial with the filter disc; the positioning piece is further provided with a second positioning edge having the same shape as the inner circumference of the fourth filter.

[0012] As a further improvement of the present utility model, the fourth filter is composed of a semi-circular ring and a semi-circle.

[0013] As a further improvement of the present utility model, the light intensity gradient of the fourth filter has two segments; the light intensity gradient of the semi-circle area is from 0% to 10%, and the light intensity gradient of the semi-circular ring area is from 10% to 100%.

[0014] On the other hand, a stage light includes a light filtering device of the above technical solution, and further includes a light source assembly and a driving assembly. The light filtering device is installed in the light output direction of the light source assembly, and the driving assembly is used to drive the light filtering device so that the first filter or the second filter or the fourth filter can be rotatably located alone on the main optical path. Description of the Drawings

[0015] Figure 1 It is a front view of Embodiment 1;

[0016] Figure 2 It is a rear view of Embodiment 1;

[0017] Figure 3 It is a perspective view of Embodiment 1;

[0018] Figure 4 It is an exploded perspective view of Embodiment 1;

[0019] Figure 5 It is a front view of Embodiment 2;

[0020] Figure 6 It is a rear view of Embodiment 2;

[0021] Figure 7 It is a perspective view of Embodiment 2;

[0022] Figure 8 It is an exploded perspective view of Embodiment 2;

[0023] In the figure: the first filter 1; the second filter 2; the third filter 21; the central axis 3; the fourth filter 4; the semi-circle area 41; the semi-circular ring area 42; the inner circumference 43; the filter disc 5; the installation area 51; the filter installation area 52; the first light passing hole 521; the second light passing hole 522; the positioning piece 53; the first positioning edge 531; the second positioning edge 532. Detailed Description of the Embodiments Embodiment 1

[0024] Combined with the attached Figure 1 and the attached Figure 2, A filter device, comprising a filter disc 5, a first filter 1 and a second filter 2. The filter disc 5 includes a mounting area 51 in the middle and a filter mounting area 52 on the periphery of the mounting area. The filter mounting area 52 is provided with a number of light passing holes 521 that are adapted to the size of the first filter 1 and are arranged in a uniformly spaced circular pattern, and light passing holes 522 that are adapted to the size of the second filter 2; the first filter 1 is a monochromatic filter, and the second filter 2 is a multicolor filter. The filter disc 5 is a circular flat plate, and the mounting area 51 in the middle is provided with a circular mounting hole coaxial with the filter disc 5, and there are a plurality of small mounting holes around it; the filter mounting area 52 adjacent to the mounting area 51 is annular, and the light passing holes 522 and the light passing holes 521 are interspersed in the filter mounting area 52; the size of the first filter 1 is slightly larger than the size of the light passing hole 521 and can completely cover the light passing hole 521; the shape of the light passing hole 521 is a sector, and the shape of the first filter 1 is also a sector; the adjacent sides of every two adjacent first filters 1 are in close contact with each other; in this embodiment, the first filter 1 is a monochromatic filter and can only transmit light of a specific color; for example, a red filter, a green filter or a blue filter. The second filter 2 is coaxial with the light passing hole 522, and the area of the second filter 2 is slightly smaller than the area of the first filter 1; when the second filter 2 cuts into the light path, it can transmit light of multiple colors at the same time, forming a rich and colorful light output effect. The beneficial effect of this embodiment is that the second filter 2 is designed to have an area similar to that of the first filter 1, enabling it to transmit light of multiple different colors at the same time, thus greatly enriching the light output effect and color performance of the lamp; moreover, the present utility model can also selectively cut multiple filters into the main light path, and the filter disc 5 achieves a multiple dyeing effect: it can transmit specific monochromatic light and can also display a multicolor effect at the same time, greatly enhancing the diversity of the light output effect.

[0025] As a new embodiment, in combination with the attached Figure 2 and the attached Figure 3 , the second filter 2 is a single color sheet provided with a plurality of color areas. In this embodiment, the second filter 2 is a circular flat plate, and the shape of the light passing hole 522 adapted to the size of the second filter 2 is a circular through hole; for example, the color areas on the second filter 2 are five sectors, and the light transmitted through the second filter 2 is light of five colors; it can be understood that as long as the light transmitted through the second filter 2 is multicolor light, the second filter 2 can also be of other shapes, and the color areas on it can also be six, seven or eight, etc., and the shape of the color areas on the second filter 2 can also be other shapes; for example, the shape of the second filter 2 is the same as the shape of the first filter 1, and at this time, the shapes of the light passing hole 521 and the light passing hole 522 are the same, but the light transmitted through the second filter 2 is multicolor light. The beneficial effect of this embodiment is that the different colors of light transmitted through the color areas on the second filter 2 are mixed more naturally, and it is more conducive to the installation of the second filter 2.

[0026] As a new implementation manner, in combination with the attached Figure 2 and the attached Figure 3 , the second filter 2 is surrounded by a plurality of third filters 21 of different colors, and every two adjacent third filters 21 are in contact with each other. In this implementation manner, the third filters 21 are a plurality of sectors of different colors. It can be understood that the third filters 21 can also be other shapes, such as circular, hexagonal, etc. The size of the second light passing hole 522 is adapted to the second filter 2. When the shape of the third filter 21 is a sector, the second light passing hole 522 is formed by splicing a plurality of sector-shaped through holes, and there is a spacing edge between every two adjacent through holes; the gaps where two third filters 21 are in contact with each other correspond one by one to the spacing edges; this prevents light from leaking out through the gaps between the two third filters 21, so that the formed lighting effect has uneven colors; when the third filter 21 is a polygon, such as a triangle, at this time the second light passing hole 522 is formed by splicing a plurality of triangular through holes. The beneficial effect of this implementation manner is that the required colors can be spliced according to requirements, and the colors and shapes can be freely selected; it is beneficial to meet different personalized requirements.

[0027] As a new implementation manner, in combination with the attached Figure 2 and the attached Figure 3 , the number of the second filters 2 is one. There is a second light passing hole 522 provided on the filter disc 5, and the second filter 2 is installed on the second light passing hole 522 by dispensing glue; one of the first light passing holes 521 adjacent to the second filter 2 is not installed with the first filter, and either the second filter 2 can be cut into by the first light passing hole 521, or the second filter 2 can be cut into by the first filter 1; when the second filter 2 is cut into by the first light passing hole 521, the light output effect changes from white light to multi-color light; when the second filter 2 is cut into by the first filter 1, the light output effect changes from monochromatic light to multi-color light. It can be understood that there can also be multiple second filters 2 provided on the filter disc 5. When the number of the second filters 2 increases, the number of the first filters 1 decreases. Therefore, the different multi-color lights formed by the filter disc 5 increase, and the monochromatic lights decrease; the number of the second filters 2 is at least one, which enables the filter disc 5 to transmit both multi-color light and monochromatic light.

[0028] As a new implementation manner, in combination with the attached Figure 2, the second filter 2 is composed of four filters 21 of the same area but different colors. The colors of the four filters 21 are red, yellow, green, and blue respectively. The filter 21 is a sector with equal area, and the red, yellow, blue, and green filters 21 are combined in sequence; when the areas of the filters 21 are equal, the number of light rays of different colors passing through the second filter 2 tends to be the same, and the color of the formed lighting effect is more uniform; when the area of each filter 21 forming the second filter 2 is not equal, the number of light rays of different colors passing through the second filter 2 is unbalanced, and the color of the formed lighting effect is uneven. The light rays of the corresponding color passing through the filter 21 with a relatively small area may be covered or not obvious by the light rays of other colors; the lighting effects formed by different combination orders of the filters 21 are also different. It can be understood that there are also many ways to combine the filters 21; moreover, the filters 21 can also flexibly select other different colors. The beneficial effect of this embodiment is that the filters 21 can be flexibly combined and different colors can be selected. Therefore, the light output effects formed by the light rays passing through the second filter 2 are diverse and selectable; because the areas of the filters 21 are equal, the color of the lighting effect formed by the light rays passing through the second filter 2 is uniform.

[0029] As a new embodiment, in combination with the attached Figure 3 and the attached Figure 4 , it further includes a positioning piece 53. The positioning piece 53 is installed in the installation area 51 of the filter disc. The positioning piece 53 is provided with a positioning edge 531 having the same shape as the adjacent side of the first filter 1. The positioning piece 53 is a regular octagon plate, and a circular through hole coaxial with the positioning piece 53 is provided at its center; there are a plurality of mounting holes on the positioning piece 53, and it is coaxially mounted below the filter disc 5 through fixing pieces; the thickness of the first filter 1 is slightly greater than the thickness of the positioning piece 53; the adjacent sides of the first filter 1 are straight lines, and two adjacent first filters 1 are closely attached to each other; the positioning edge 531 corresponds to the adjacent side of the first filter 1 one by one, so that the annular area surrounded by the first filters 1 and the filter disc 5 share the same central axis; the first filter 1 is annularly installed on the filter disc 5, and a gap for dispensing glue is left between the adjacent side of the first filter 1 and the positioning edge 531; the beneficial effect of this embodiment is that it is beneficial to position the first filter 1 and it will not shift at the predetermined position, and it corresponds to the first light passing hole 521 one by one. Embodiment 2

[0030] The difference between Embodiment 2 and Embodiment 1 is that in addition to including any one of the implementation manners of Embodiment 1, Embodiment 2 further includes the following implementation manners:

[0031] In combination with the attached Figure 5 and the attached Figure 6, A filter device further includes a filter sheet four 4 provided with a gradient filter region. The filter sheet four 4 is an annular filter sheet sharing the central axis 3 with the filter sheet disk 5; the positioning sheet 53 is further provided with a second positioning edge 532 having the same shape as the inner circumference 43 of the filter sheet four 4. The shape of the filter sheet disk 5 is a combination of a circle and a sector. The filter sheet installation area 52 is evenly divided into eight parts, and the sector of the filter sheet disk 5 accounts for two parts; among them, the filter sheet disk 5 is provided with a first light passing hole 521 and a second light passing hole 522. The filter sheet one 1 is installed on the first light passing hole 521, and the filter sheet two 2 is installed on the second light passing hole 522; the positioning sheet 53 is located within the installation area 51. At this time, the positioning edge of the positioning sheet 53 is composed of two straight lines and an arc; the first positioning edge 531 is a straight line, and the second positioning edge 532 is an arc; the filter sheet one 1 is positioned through the first positioning edge 531 and fits its shape, and the filter sheet four 4 is positioned through the second positioning edge 532 and fits its shape; in this embodiment, the filter sheet four 4 occupies five-eighths of the position of the filter sheet installation area 52. Adjacent to the filter sheet four 4 are the light passing hole and the filter sheet two 2, and the filter sheet one 1 is located between the light passing hole and the filter sheet two 2; when the light passing hole is on the optical path, the transmitted light is white light; when cutting into the filter sheet four 4, the transmitted light changes from white light to gradient light with a color changing from light to deep; when cutting from the filter sheet four 4 into the filter sheet two 2, the emitted light changes from the gradient light to multi-color light. The beneficial effect of this embodiment is that there are three filter sheets (1, 2, 4) with different effects on one filter sheet disk 5, realizing that one filter sheet disk 5 can project multiple lighting effects. When the filter sheet one 1, the filter sheet two 2, or the filter sheet 4 is respectively cut into the main optical path, the filter sheet disk 5 can not only transmit monochromatic light, but also display multi-color light simultaneously, and can also transmit gradient light.

[0032] As a new embodiment, in combination with the attached Figure 6 and the attached Figure 7 , the filter sheet four 4 is composed of a semi-ring and a semi-circle. One side edge of the semi-ring of the filter sheet four 4 is a straight line, and the other side edge is an arc; one end of the straight side edge of the filter sheet four 4 abuts against the filter sheet disk 5, and the other end is adjacent to the light passing hole of the filter sheet disk 5; the filter sheet four 4 is installed on the filter sheet installation area 52 by means of dotting glue, and there is a dotting glue gap between the inner circumference 43 of the filter sheet four 4 and the second positioning edge 532 of the positioning sheet 53. The beneficial effect of this embodiment is that when one end of the semi-circle of the filter sheet four 4 cuts in or out, different from the stiffness of the linear light effect formed by the traditional gradient filter sheet, the light effect formed by the filter sheet four 4 has a more natural transition.

[0033] As a new embodiment, in combination with the attached Figure 8, the light and shade of the fourth filter 4 gradually changes in two sections; the light and shade of the semi-circular area 41 gradually changes from 0% to 10%, and the light and shade of the semi-circular ring area 42 gradually changes from 10% to 100%. When the semi-circular area 41 of the fourth filter 4 cuts into the light path, the degree of change in the gradual change of light and shade is relatively low, so the process of white light turning into gradually changing light of other colors is relatively natural; when the semi-circular ring area 42 of the fourth filter 4 connects with the semi-circular area and cuts into the light path, the color of the transmitted light changes from light to deep; when switching from the second filter 2 to the fourth filter 4, the transmitted light changes from multi-color light to darker gradually changing light; when the fourth filter 4 turns from the semi-circular ring area 42 to the semi-circular area 41 on the light path, the darker gradually changing light changes into lighter light, and when cutting into the light through-hole from the fourth filter 4, it changes from lighter gradually changing light to white light. The beneficial effect of this embodiment is that when cutting into or out of the semi-circular area 41, the color transition of the light is smoother and more natural; and when the light path travels on the fourth filter 4, the change in the light and shade of the light color is also relatively natural.

[0034] The present utility model provides a stage light, which includes a light filtering device as described in any one of the above, and further includes a light source assembly and a driving assembly. The light filtering device is installed in the light emitting direction of the light source assembly, and the driving assembly is used to drive the light filtering device so that the first filter 1 or the second filter 2 or the fourth filter 4 can rotate and be located alone on the main light path. The light filtering device is located at one end close to the light source assembly, and an installation hole for fixing the driving mechanism is provided in the middle of the filter disc 5; the driving mechanism is fixed to the filter disc through a fixing member, and the filter disc 5 is coaxially installed with the driving mechanism; when the first filter 1 and the second filter 2 are provided on the filter disc 5, or when the fourth filter 4 is further included, only one of the first filter 1, the second filter 2 or the fourth filter 4 can be located on the light path; when the driving mechanism works, the filter disc 5 rotates simultaneously, and multiple filters rotate in the light path. The light filtering device is used for filtering light, which is beneficial to obtaining the required light to achieve a more colorful lighting effect.

Claims

1. A filter device, comprising a filter disc, a first filter and a second filter. The filter disc includes an installation area in the middle and a filter installation area on the periphery of the installation area. The filter installation area is provided with a plurality of first light passing holes that are uniformly spaced in a ring shape and are adapted to the size of the first filter, and second light passing holes that are adapted to the size of the second filter; characterized in that, Filter one is a monochromatic filter, and filter two is a polychromatic filter.

2. The optical filter device according to claim 1, wherein Filter two is a single color chip with multiple color regions.

3. The optical filter device according to claim 1, wherein Filter two is surrounded by multiple filters three of different colors, and every two adjacent filters three are in contact with each other.

4. The optical filter device according to claim 3, wherein, The number of filter two is one.

5. A light filtering device according to claim 3, wherein Filter two is composed of four filters three of different colors but the same area, and the colors of the four filters are red, yellow, green, and blue respectively.

6. A filter device according to claim 1, characterized in that, It further includes a positioning piece. The positioning piece is installed in the installation area of the filter disc, and a positioning edge one with the same shape as the adjacent side of filter one is provided on the positioning piece.

7. The optical filter device according to claim 6, wherein It further includes a filter four with a gradient filter region. Filter four is an annular filter concentric with the filter disc; a positioning edge two with the same shape as the inner circumference of filter four is also provided on the positioning piece.

8. A filter device according to claim 7, characterized in that, Filter four is composed of a semi-circular ring and a semi-circle.

9. A filter device according to claim 8, wherein, The light intensity gradient of filter four has two segments; the light intensity gradient of the semi-circle region is from 0 to 10%, and the light intensity gradient of the semi-circular ring region is from 10% to 100%.

10. A stage light, characterized in that, It includes a filter device according to any one of claims 1-9, and further includes a light source assembly and a driving assembly. The filter device is installed in the light output direction of the light source assembly, and the driving assembly is used to drive the filter device so that filter one or filter two or filter four can be rotated to be separately located on the main optical path.

Images