CN217767153U - Optical lens of multicolor movie and television lamp - Google Patents

Abstract

The utility model discloses a polychrome movie & TV lamp optical lens belongs to lamps and lanterns camera lens technical field. The utility model discloses a base, mixed light mechanism and spotlight mechanism, mixed light mechanism include a mixed light section of thick bamboo, diffusion lens and solid fixed ring, and when the light source got into mixed light mechanism, a mixed light section of thick bamboo carried out the rethread diffusion lens after once mixing the light source and carries out the secondary and mix. The light mixing cylinder and the diffusion lens are fixed on the base through the fixing ring, the light condensing mechanism is sleeved on the base, and the light condensing mechanism can move on the base so as to change a light condensing focus. The utility model discloses combine a mixed light section of thick bamboo, fly eye lens, condensing lens mutually, various colors light is through a mixed light section of thick bamboo, fly eye lens's multiple reflection, refraction, carries to condensing lens piece again after the misce bene, finally realizes the even, unanimous spotlight output of colour to adjustable focal length changes spotlight luminance. The utility model has the advantages that the whole structure is simple it is single, the mode of zooming adopts plug-type screw rotation formula that also can adopt, and control is convenient quick.

Description

Optical lens of multicolor movie and television lamp

Technical Field

The utility model belongs to the technical field of the lamps and lanterns camera lens, especially, relate to a polychrome movie & TV light optical lens.

Background

The camera lamp is also called as a video lamp and a movie lamp, and is an artificial light source for shooting. When the ambient light is too low, the equipment that must be used for making a video recording is the photography and videography auxiliary light that photographers and newsreaders need to take pictures or record video under the dark environment. Early camera lamps used halogen lamps as the light emitter, such as BL-DC20 camera lamps, which had a color temperature between 2800K and 3000K, and had a white balance of the camera at the incandescent lamp position to show good color reproduction. Its disadvantages are low light intensity, high power consumption and short service life. The existing photography lamp is usually provided with an optical lens on a lamp for meeting the photography requirement.

At present, the optical lens of the existing lamp only can play a role of light condensation, and can not mix light rays of various colors of a multicolor light source uniformly to enable the colors of light spots to be consistent, and the presented light spots can be clearly seen and distributed with various colors. Chinese utility model patent CN214306979U discloses a rotatory flexible photography luminaire, and it has mainly solved the biggest scope regulation that realizes diverging the angle to realize illumination and luminance area's regulation, fail to solve the inhomogeneous problem of mixed light. Chinese utility model patent CN214041964U discloses a rotatory photographic condensing lens, utilizes the lens performance to carry out the improvement at double to original light brightness value, provides the color change of light output through colored piece, leads to the light shadow template and carries various light molding shadow light effects, realizes the manifold change of light output effect. However, the change of the light color through the color sheet is disordered and cannot be specifically adjusted, the light mixing is not uniform, and the overall structure is relatively complex.

Therefore, the optical lens of the multi-color film and television lamp not only can play a role in condensing light and adjusting focal length to change condensing brightness, but also can solve the problems of uneven light mixing and complex structure of the existing optical lens of the film and television lamp.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a polychrome movie & TV lamp optical lens, aim at solving the inhomogeneous, complicated problem of structure of current movie & TV lamp optical lens mixed light. For realizing the purpose, the utility model discloses a technical scheme be:

the utility model provides a polychrome movie & TV lamp optical lens, includes base, thoughtlessly bare mechanism and spotlight mechanism, thoughtlessly bare the mechanism including a mixed light section of thick bamboo, diffusion lens and solid fixed ring, when the light source got into thoughtlessly bare the mechanism, a mixed light section of thick bamboo carries out the secondary to mix rethread diffusion lens after once mixing the light source. The light mixing cylinder and the diffusion lens are fixed on the base through the fixing ring, the light condensing mechanism is sleeved on the base, and the light condensing mechanism can move on the base so as to change the light condensing focus.

Further description to the above scheme, the base includes solid fixed cylinder, silica gel circle and support, and the support is fixed inside solid fixed cylinder, and the periphery at solid fixed cylinder is overlapped to the silica gel circle, mixes light mechanism fixed mounting on the support. The light condensing mechanism comprises an outer barrel, a light condensing lens and a pressing ring, the light condensing lens is fixed inside the outer barrel by the pressing ring, the outer barrel is sleeved on the fixing barrel, and the support, the light mixing barrel, the diffusion lens and the light condensing lens are located on the same straight line.

Preferably, the surface of the outer cylinder, which is sleeved with the fixed cylinder, is smooth, the condensing lens fixed on the outer cylinder changes the relative position with the fixed cylinder through the push-pull of the outer cylinder, and the silica gel ring on the fixed cylinder plays a role in damping and sealing.

Preferably, the inner part of the outer cylinder is provided with threads on the surface which is sleeved with the fixed cylinder, the periphery of the fixed cylinder is provided with corresponding threads, the outer cylinder and the fixed cylinder are screwed together through the threads to change the relative position of the condensing lens and the fixed cylinder, and at the moment, the silica gel ring on the fixed cylinder plays a sealing role.

Further, the condensing lens includes a convex lens and a fresnel lens, both of which can generate condensing action, and the fresnel lens (fresnel lens) is an optical element with a fine structure, which looks like a dart board when viewed from the front and consists of a ring of concentric circles. The working principle is very simple: assuming that the refractive power of a lens occurs only at the optical surface (e.g., lens surface), as much optical material as possible is removed while preserving the curvature of the surface. The diffusion lens is a fly-eye lens which is formed by combining a series of small lenses, and the fly-eye lens is applied to an illumination system to obtain high light energy utilization rate and large-area uniform illumination.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses combine a mixed light section of thick bamboo, fly eye lens, condensing lens mutually, various colors light is through a mixed light section of thick bamboo, fly eye lens's multiple reflection, refraction, carries to condensing lens piece again after the misce bene, finally realizes the even, unanimous spotlight output of colour, and adjustable focal length changes spotlight luminance.

2. The whole structure is simple, the zooming mode adopts a push-pull mode and can also adopt a thread rotating mode, and the control is convenient and quick.

Drawings

Fig. 1 is an overall schematic diagram provided by an embodiment of the present invention;

fig. 2 is an exploded schematic view provided by an embodiment of the present invention;

fig. 3 is a schematic diagram of a module structure provided in an embodiment of the present invention;

fig. 4 is a schematic cross-sectional view provided by an embodiment of the present invention;

fig. 5 is a schematic view of a diffusion lens structure according to an embodiment of the present invention;

fig. 6 is a schematic view of a usage status provided by an embodiment of the present invention;

fig. 7 is a schematic cross-sectional view of a usage status provided by an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1. a base; 11. a fixed cylinder; 12. a silica gel ring; 13. a support; 2. a light mixing mechanism; 21. a light mixing barrel; 22. a diffusion lens; 23. a fixing ring; 3. a light condensing mechanism; 31. an outer cylinder; 32. a condenser lens; 33. and (5) pressing a ring.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Example 1

As shown in fig. 1-7, the embodiment of the utility model provides a polychrome movie & TV lamp optical lens, including base 1, thoughtlessly bare mechanism 2 and spotlight mechanism 3, thoughtlessly bare mechanism 2 includes a mixed light section of thick bamboo 21, diffusion lens 22 and solid fixed ring 23, and when light got into thoughtlessly bare mechanism 2, a mixed light section of thick bamboo 21 carries out the secondary to the light rethread diffusion lens 22 after once mixing and mixes. The light mixing cylinder 21 and the diffusion lens 22 are fixed on the base 1 through a fixing ring 23, the light condensing mechanism 3 is sleeved on the base 1, and the light condensing mechanism 3 can move on the base 1 so as to change the condensing focus.

As shown in fig. 2, the base 1 includes a fixed cylinder 11, a silica gel ring 12 and a bracket 13, the bracket 13 is fixed inside the fixed cylinder 11, the silica gel ring 12 is sleeved on the periphery of the fixed cylinder 11, and the light mixing mechanism 2 is fixedly mounted on the bracket 13. The light condensing mechanism 3 includes an outer cylinder 31, a light condensing lens 32, and a pressing ring 33, the pressing ring 33 fixes the light condensing lens 32 inside the outer cylinder 31, the outer cylinder 31 is fitted on the fixed cylinder 11, and the holder 13, the light mixing cylinder 21, the diffusion lens 22, and the light condensing lens 32 are positioned on the same straight line.

The inner part of the outer cylinder 31 is smooth with the nesting surface of the fixed cylinder 11, the condensing lens 32 fixed on the outer cylinder 31 changes the relative position with the fixed cylinder 11 by the push-pull of the outer cylinder 31, and at this time, the silica gel ring 12 on the fixed cylinder 11 plays the role of damping and sealing. The condenser lens 32 is a fresnel lens, and the diffusion lens 22 is a fly-eye lens.

During installation, as shown in fig. 2 and 3, the bracket 13 is fixed on the fixing cylinder 11 through screws, the silica gel ring 12 is sleeved outside the fixing cylinder 11, and the bracket 13, the fixing cylinder 11 and the silica gel ring 12 form the base 1; the light mixing cylinder 21, the fly-eye lens and the fixed ring 23 are combined into a whole to form the light mixing mechanism 2, and are fixed on the bracket 13 through screws; the fresnel lens is fixed to the outer cylinder 31 by the press ring 33 to form the light condensing mechanism 3, and the light condensing mechanism 3 is fitted to the fixed cylinder 11, and at this time, the base 1, the light mixing mechanism 2, and the light condensing mechanism 3 are integrated as shown in fig. 4.

The working principle is as follows: light enters the light mixing barrel 21 from the through hole of the support 13, the light mixing barrel 21 is provided with a plurality of inclined planes to mix the light for the first time, the mixed light enters the fly-eye lens, the fly-eye lens is formed by combining a series of small lenses, as shown in fig. 5, the light enters the fly-eye lens to be mixed for the second time, and the color of the light is more uniform; the secondarily mixed light passes through the condenser lens 32, and the focal length can be changed by changing the distance between the condenser lens 32 and the fly-eye lens, as shown in fig. 6 and 7.

Example 2

On the basis of embodiment 1, the inner part of the outer cylinder 31 and the matching surface of the fixed cylinder 11 are provided with threads, the periphery of the fixed cylinder 11 is provided with corresponding threads, the outer cylinder 31 and the fixed cylinder 11 are screwed through the threads, and the relative position of the condensing lens 32 and the fixed cylinder 11 is changed, so that the zooming mode can be changed from a push-pull mode to a thread rotation mode, and the focusing is more accurate.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. As used herein, the terms "vertical," "horizontal," "left," "right," and the like are for illustrative purposes only and do not represent the only embodiments, and as used herein, the terms "upper," "lower," "left," "right," "front," "rear," and the like are used in a positional relationship with reference to the drawings.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.

Claims (6)

1. The utility model provides a polychrome movie & TV lamp optical lens, includes base, mixes light mechanism and spotlight mechanism, mix light mechanism and include that it is a mere section of thick bamboo, diffusion lens and solid fixed ring, its characterized in that to mix: the light mixing cylinder and the diffusion lens are fixed on the base through a fixing ring, and the light condensing mechanism is sleeved on the base.

2. The optical lens of claim 1, wherein: the base includes a fixed cylinder, a silica gel ring and a support, the support is fixed inside the fixed cylinder, the silica gel ring is sleeved on the periphery of the fixed cylinder, and the light mixing mechanism is fixedly installed on the support.

3. The optical lens of claim 2, wherein: the condensing mechanism comprises an outer barrel, a condensing lens and a pressing ring, the condensing lens is fixed inside the outer barrel by the pressing ring, the outer barrel is sleeved on the fixing barrel, and the support, the light mixing barrel, the diffusion lens and the condensing lens are located on the same straight line.

4. The optical lens of claim 3, wherein: the inner part of the outer cylinder is smooth with the nesting surface of the fixed cylinder, and the condensing lens fixed on the outer cylinder changes the relative position with the fixed cylinder through the push-pull of the outer cylinder.

5. The optical lens of claim 3, wherein: the outer cylinder is internally provided with threads on the surface sleeved with the fixed cylinder, corresponding threads are arranged on the periphery of the fixed cylinder, and the outer cylinder and the fixed cylinder are screwed through the threads to change the relative position of the condensing lens and the fixed cylinder.

6. An optical lens for a multicolor video lamp according to any one of claims 3 to 5, wherein: the condensing lens comprises a convex lens and a Fresnel lens, and the diffusion lens is a fly-eye lens.

Images