CN106764934B - Prism for making lamplight pattern in matrix distribution - Google Patents
Prism for making lamplight pattern in matrix distribution Download PDFInfo
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- CN106764934B CN106764934B CN201710092987.8A CN201710092987A CN106764934B CN 106764934 B CN106764934 B CN 106764934B CN 201710092987 A CN201710092987 A CN 201710092987A CN 106764934 B CN106764934 B CN 106764934B
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- light
- emitting surface
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/02—Refractors for light sources of prismatic shape
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- General Engineering & Computer Science (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention discloses a prism for enabling light patterns to be distributed in a matrix mode, which comprises a light inlet surface and a plurality of light outlet surfaces.
Description
Technical Field
The invention relates to the field of optical components, in particular to a prism for enabling lamplight patterns to be distributed in a matrix mode.
Background
The prism, which is a transparent optical element in optics, is polished and planar to refract light. The correct surface angle depends on the application requirements, and the conventional geometry is a triangular prism with a triangular base rectangle as the side. References to prisms are made verbally to this type of prism, but many optical prisms are not prisms of this shape. In the prior art, stage lamps are commonly used as conical prisms, which project a separate pattern distribution, typically in the form of a circular ring. In addition, some of the prisms are arranged in a linear pattern. However, there is a constant lack of prisms that exhibit a square matrix distribution effect in the prior art.
Disclosure of Invention
In order to solve the problems, the scheme discloses a prism for enabling light patterns to be distributed in a matrix mode, wherein the prism comprises a light incident surface and a light emergent surface;
the light-emitting surface comprises a top light-emitting surface, and the top light-emitting surface is parallel to the light-entering surface;
the light-emitting surface further comprises a first side light-emitting surface, and an included angle between the first side light-emitting surface and the light-entering surface is alpha;
the light-emitting surface further comprises a second side light-emitting surface, and an included angle between the second side light-emitting surface and the light-entering surface is beta, wherein beta-alpha is more than or equal to 4 degrees and less than or equal to 7 degrees;
the number of the first side light-emitting surfaces is four, the number of the second side light-emitting surfaces is four, and each first side light-emitting surface and each second side light-emitting surface are alternately distributed around the top light-emitting surface;
the projections of the top light-emitting surface, the first side light-emitting surface and the second side light-emitting surface on the light-entering surface are distributed in a central symmetry mode, and the symmetry center is the projection of the top light-emitting surface on the light-entering surface.
Further, the included angle alpha between the light-emitting surface and the light-entering surface of the first side is 15-25 degrees.
Further, the method comprises the steps of, the included angle beta between the second side light-emitting surface and the light-entering surface ranges from 18 degrees to 30 degrees.
Further, the angle difference between the included angle α between the light-emitting surface of the first side and the light-entering surface and the included angle β between the light-emitting surface of the second side and the light-entering surface is 5.5 °.
Further, an included angle α between the light-emitting surface and the light-entering surface of the first side is 18 °.
Further, an included angle β between the second light-emitting surface and the light-entering surface is 23.5 °.
Furthermore, the prism is made of optical glass, the refractive index is 1.40-1.75.
Furthermore, the whole appearance of the prism is cone-shaped, the light incident surface forms the bottom surface of the cone-shaped prism, the first side light-emitting surface and the second side light-emitting surface are both positioned on the side surface of the cone-shaped prism, the light-emitting surface at the top end is positioned at the top of the cone-shaped prism, the light-entering surface is a round surface, the size of the light-entering surface is phi 20-phi 65, and the height of the cone-shaped prism is 5-20 mm.
Further, the top light-emitting surface is a square plane, and the four first side light-emitting surfaces are respectively intersected with four sides of the top light-emitting surface.
Further, the method comprises the steps of: the four second side light-emitting surfaces are respectively intersected with four corners of the top light-emitting surface.
The proposal designs the specific angle and the position relation between the light-in surface and the light-out surface, and the position and the angle relation between the light-out surfaces, thereby obtaining the prism which has a special structure and can lead the lamplight patterns to be distributed in a matrix, the pattern projected by the stage projection lens light path through the prism in the scheme of the invention is distributed into a matrix, thereby creatively developing the beam pattern effect.
Drawings
The following details the specific construction of the present invention with reference to the accompanying drawings
FIG. 1 is a perspective view of a prism for distributing light patterns in a matrix form according to the present invention;
FIG. 2 shows a lamp pattern according to the present invention another perspective view of the matrix-distributed prisms;
FIG. 3 is a front view of a prism with light patterns distributed in a matrix form according to the present invention;
FIG. 4 is a rear view of a prism having a light pattern in a matrix arrangement in accordance with the present invention;
FIG. 5 is a left side view of a prism having a light pattern in a matrix arrangement in accordance with the present invention;
FIG. 6 is a right side view of a prism having a light pattern in a matrix arrangement in accordance with the present invention;
FIG. 7 is a top view of a prism having a light pattern in a matrix arrangement in accordance with the present invention;
FIG. 8 is a bottom view of a prism having a light pattern in a matrix arrangement in accordance with the present invention;
FIG. 9 is a cross-sectional view of a prism having a light pattern in a matrix arrangement in accordance with the present invention;
FIG. 10 is another cross-sectional view of a prism having a light pattern in a matrix arrangement in accordance with the present invention;
fig. 11 shows a rectangular light pattern effect of prisms for distributing light patterns in a matrix form according to the present invention.
In the figure, a 1-light incident surface, a 2-top light emergent surface, a 3-first side light emergent surface and a 4-second side light emergent surface.
Detailed Description
In order to describe the technical content, the constructional features, the achieved objects and effects of the present invention in detail, the following description is made in connection with the embodiments and the accompanying drawings.
Referring to fig. 1-10, a prism for distributing light patterns in a matrix form includes a light incident surface 1 and a plurality of light emergent surfaces;
the light-emitting surface comprises a top light-emitting surface 2, and the top light-emitting surface 2 is parallel to the light-entering surface 1;
the light-emitting surface further comprises a first side light-emitting surface 3, and an included angle between the first side light-emitting surface 3 and the light-entering surface 1 is alpha;
the light-emitting surface further comprises a second side light-emitting surface 4, an included angle between the second side light-emitting surface 4 and the light-entering surface 1 is beta, wherein beta-alpha is more than or equal to 4 degrees and less than or equal to 7 degrees, and the preferable angle difference is 5.5 degrees;
the number of the first side light-emitting surfaces 3 is four, the number of the second side light-emitting surfaces 4 is four, and each first side light-emitting surface 3 and each second side light-emitting surface 4 are alternately distributed around the top light-emitting surface 2;
the projections of the top light-emitting surface 2, the first side light-emitting surface 3 and the second side light-emitting surface 4 on the light-entering surface 1 are distributed in a central symmetry mode, and the symmetry center is the projection of the top light-emitting surface 2 on the light-entering surface 1.
In this scheme, the top light-emitting surface 2 is parallel to the light-incident surface 1 and is located at the center of all the light-emitting surfaces, and then the light pattern emitted from the top light-emitting surface 2 is also located at the center of the light patterns emitted from the rest of the light-emitting surfaces. The four first side light-emitting surfaces 3 have the same shape and size, and the included angle between the light-emitting surfaces and the light-incident surface 1, when the light source passes through the lens light-incident surface and then is refracted by the prism, the emergent angles of emergent light from the four first side light-emitting surfaces 3 are equal, the distances from the light patterns transmitted from the four first side light-emitting surfaces 3 to the center of the patterns are equal, and the projections of the light patterns are distributed in a central symmetry mode, so that the light patterns emergent from the four first side light-emitting surfaces 3 are uniformly distributed and can form a square, wherein the distance from the emergent light patterns to the center, namely the size of the square, is influenced by the angle alpha. Similarly, the light patterns of the light emitted from the four second light emitting surfaces 4 are distributed and can form a square, the center of the square is the light pattern emitted from the top light emitting surface 2, and the distance from the light pattern to the center, namely the size of the square, is influenced by the angle β. With reference to fig. 11, the light pattern at the center and the light pattern emitted by the first side light emitting surface 3 and the second side light emitting surface 4 which are formed into two squares together may form a matrix, that is, the light pattern emitted by the light source through the refraction action of the prism may be distributed in a three-order matrix. The light patterns of the light emitting surface 2 at the top end are located at the center of the third-order matrix, the light patterns of the light emitting surface 4 at the four second sides are respectively distributed at the four corners of the third-order matrix, and the light patterns of the light emitting surface 3 at the four first sides are respectively located at the midpoints of the four sides of the third-order matrix. In addition, it is necessary to ensure that the angle difference between the arrangement of the projection patterns in the interval of 4 ° or more and the angle difference between the projection patterns in the interval of less and less than 7 ° is greatly deviated from the matrix distribution, that is, the light pattern refracted by the four first light emitting surfaces 3 cannot be located at the center of four sides of the matrix to be formed or within a smaller deviation range.
Referring to fig. 9 and 10, the included angle α between the first side light surface 3 and the light incident surface 1 is 15 ° -25 °, and the preferred angle is 18 °. The included angle beta between the second side light-emitting surface 4 and the light-entering surface 1 is 18-30 degrees, and the preferable angle is 23.5 degrees. When the angle alpha 18 DEG and the angle beta are 23.5 DEG and the difference value of the angle beta-alpha is 5.5 DEG, the emergent light pattern of the prism can present a better matrix distribution state.
Preferably, the prism is made of optical glass, and the refractive index is 1.40-1.75.
Preferably, the method comprises the steps of, the whole appearance of the prism is cone-shaped. The light incident surface 1 forms the bottom surface of the cone-shaped prism, the first side light emergent surface 3 and the second side light emergent surface 4 are both positioned on the side surface of the cone-shaped prism, the top light emergent surface 2 is positioned on the top of the cone-shaped prism, the light incident surface 1 is a round surface, the size of the light incident surface 1 is phi 20-phi 65, and the height of the cone-shaped prism is 5-20 mm.
Preferably, the top light-emitting surface 2 is a square plane, and the four first side light-emitting surfaces 3 respectively intersect four sides of the top light-emitting surface 2 and are also co-located with the four sides. The four second side light-emitting surfaces 4 respectively intersect with four corners of the top light-emitting surface 2, and are respectively adjacent to two of the four first side light-emitting surfaces 3, i.e. the four first side light-emitting surfaces 3 are arranged at intervals, and the four second side light-emitting surfaces 4 are also arranged at intervals, i.e. the first side light-emitting surfaces 3 and the second side light-emitting surfaces 4 are arranged at intervals.
According to the scheme, the specific angle and the specific position relation between the light incident surface and the light emergent surface and the specific position and the specific angle relation between the light emergent surfaces are designed, so that the prism with a special structure and capable of enabling light patterns to be distributed in a matrix mode is obtained, and the patterns projected by the prism in the scheme of the invention are distributed in a matrix mode through the light path of the stage lamp projection lens, so that the light beam pattern effect is creatively developed.
The first and second … … herein represent only the distinction of their names and do not represent what their importance and position are different, while the upper, lower, left, right, front and rear herein represent only their relative positions and do not represent their absolute positions. Finally, the foregoing description is only exemplary embodiments of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (10)
1. A prism for distributing light patterns in a matrix, characterized in that: comprises a light incident surface and a light emergent surface;
the light-emitting surface comprises a top light-emitting surface, and the top light-emitting surface is parallel to the light-entering surface;
the light-emitting surface further comprises a first side light-emitting surface, and an included angle between the first side light-emitting surface and the light-entering surface is alpha;
the light-emitting surface further comprises a second side light-emitting surface, and an included angle between the second side light-emitting surface and the light-entering surface is beta, wherein beta-alpha is more than or equal to 4 degrees and less than or equal to 7 degrees;
the number of the first side light-emitting surfaces is four, the number of the second side light-emitting surfaces is four, and each first side light-emitting surface and each second side light-emitting surface are alternately distributed around the top light-emitting surface;
the projections of the top light-emitting surface, the first side light-emitting surface and the second side light-emitting surface on the light-entering surface are distributed in a central symmetry mode, and the symmetry center is the projection of the top light-emitting surface on the light-entering surface.
2. A prism for distributing a light pattern in a matrix as recited in claim 1, wherein: the included angle alpha between the light-emitting surface and the light-entering surface of the first side is 15-25 degrees.
3. A prism for distributing a light pattern in a matrix as claimed in claim 2, wherein: the included angle beta between the second side light-emitting surface and the light-entering surface ranges from 18 degrees to 30 degrees.
4. A prism for distributing a light pattern in a matrix as claimed in claim 3, wherein: the angle difference between the included angle alpha between the first side light-emitting surface and the light-entering surface and the included angle beta between the second side light-emitting surface and the light-entering surface is 5.5 degrees.
5. A prism for distributing a light pattern in a matrix as defined in claim 4, wherein: the included angle alpha between the light-emitting surface and the light-entering surface of the first side is 18 degrees.
6. A prism for matrix distribution of light patterns as defined in claim 5, wherein: the included angle beta between the second side light-emitting surface and the light-entering surface is 23.5 degrees.
7. A prism for matrix distribution of light patterns as defined in claim 6, wherein: the prism is made of optical glass, and the refractive index is 1.40-1.75.
8. A prism for matrix distribution of light patterns as defined in claim 7, wherein: the whole appearance of the prism is cone-shaped, the light incident surface forms the bottom surface of the cone-shaped prism, the first side light emergent surface and the second side light emergent surface are both positioned on the side surface of the cone-shaped prism, the top light emergent surface is positioned at the top of the cone-shaped prism, the light incident surface is a round surface, the size of the light incident surface is phi 20-phi 65, and the height of the cone-shaped prism is 5-20 mm.
9. A prism for distributing a light pattern in a matrix as claimed in any one of claims 1 to 8, wherein: the top light-emitting surface is a square plane, and the four first side light-emitting surfaces are respectively intersected with four sides of the top light-emitting surface.
10. A prism for matrix distribution of light patterns as defined in claim 9, wherein: the four second side light-emitting surfaces are respectively intersected with four corners of the top light-emitting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710092987.8A CN106764934B (en) | 2017-02-21 | 2017-02-21 | Prism for making lamplight pattern in matrix distribution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710092987.8A CN106764934B (en) | 2017-02-21 | 2017-02-21 | Prism for making lamplight pattern in matrix distribution |
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| Publication Number | Publication Date |
|---|---|
| CN106764934A CN106764934A (en) | 2017-05-31 |
| CN106764934B true CN106764934B (en) | 2023-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710092987.8A Active CN106764934B (en) | 2017-02-21 | 2017-02-21 | Prism for making lamplight pattern in matrix distribution |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964247A (en) * | 2015-06-16 | 2015-10-07 | 郭萌 | Optical lens |
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- 2017-02-21 CN CN201710092987.8A patent/CN106764934B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964247A (en) * | 2015-06-16 | 2015-10-07 | 郭萌 | Optical lens |
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| CN106764934A (en) | 2017-05-31 |
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