CN221237734U - Photographic lamp - Google Patents

Abstract

The utility model provides a photographic lamp, which comprises a solid-state light source module, a light homogenizing module and a light adjusting module, wherein the solid-state light source module can emit monochromatic light or mixed light, and comprises a plurality of light emitting units distributed in an array, a plurality of collecting lenses for collecting the light emitted by the light emitting units and a condensing lens for condensing the light beams emitted by the collecting lenses; the light homogenizing module is arranged on a light path of the light emitted by the solid-state light source module and is used for homogenizing the light emitted by the solid-state light source module; the dimming module is arranged on an optical path of the emergent light of the light homogenizing module, and the dimming module enables the divergence angle of the emergent light to be in a preset range. The utility model solves the problems of huge volume, preheating, short service life, strong radiation and the like of the photographic lamp adopting the dysprosium lamp as a light source in the prior art by arranging the solid-state light source module.

Description

Photographic lamp

Technical Field

The utility model relates to the field of illumination, in particular to a photographic lamp.

Background

This section is intended to provide a background or context to the particular embodiments of the utility model that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.

At present, dysprosium lamps are widely used as common photographic light sources, and the dysprosium lamps are characterized by high light efficiency, high color rendering property and high brightness. However, dysprosium lamps are one of gas discharge lamps, and thus have many problems in use, such as huge volume, need for preheating, short service life, strong radiation, etc., and severely limit popularization and application of photography lamps, so a new photography lamp technology is needed.

Disclosure of utility model

In view of the above problems, the present utility model provides a photographic lamp to solve the problems of huge volume, preheating required for lighting, short service life, strong radiation, etc. of the photographic lamp using dysprosium lamp as the light source in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The photographic lamp comprises a solid-state light source module, a light homogenizing module and a light adjusting module, wherein the solid-state light source module can emit monochromatic light or mixed light, and comprises a plurality of light emitting units distributed in an array, a plurality of collecting lenses used for collecting the light emitted by the light emitting units and a condensing lens used for condensing the light beams emitted by the collecting lenses; the light homogenizing module is arranged on a light path of the light emitted by the solid-state light source module and is used for homogenizing the light emitted by the solid-state light source module; the dimming module is arranged on an optical path of the emergent light of the light homogenizing module, and the dimming module enables the divergence angle of the emergent light to be in a preset range.

In an embodiment, the dimming module includes a first adjusting lens and a second adjusting lens, where the first adjusting lens and the second adjusting lens are one of a convex lens, a concave lens, a fresnel lens, and a threaded lens, or a lens group formed by two lenses of the convex lens, the concave lens, the fresnel lens, and the threaded lens, and the first adjusting lens and the second adjusting lens can move along an optical axis direction of the emergent light.

In one embodiment, the first and second adjusting lenses are moved in the direction of the optical axis of the outgoing light such that the outgoing light divergence angle of the photographic lamp ranges from 25 ° to 50 °.

In one embodiment, the first and second adjusting lenses are moved in the direction of the optical axis of the outgoing light so that the outgoing light divergence angle of the photographic lamp is in the range of 16 ° -32 °.

In an embodiment, the light modulation module includes a light reflection cup, the light reflection cup is used for converging the emergent light of the solid-state light source module, and the light reflection cup can move along the optical axis direction of the emergent light.

In an embodiment, the photographic lamp further includes an adaptor, and the adaptor is used for realizing connection between the solid-state light source module and the dimming module.

In an embodiment, the adapter comprises an annular penetrating shell, the adapter comprises a first connecting portion, the first connecting portion protrudes out of a flange angle of the shell, the solid-state light source module comprises a connecting hole, and the adapter and the solid-state light source module are locked through screws penetrating through the connecting hole and the flange angle.

In an embodiment, the adaptor includes a second connection portion, the second connection portion is disposed in an embedding groove of the housing facing the dimming module, the dimming module includes a housing, and a protrusion adapted to the embedding groove of the second connection portion is disposed on a side of the housing facing the adaptor.

In one embodiment, the solid-state light source module comprises an annular groove for arranging the dodging module, and the annular groove is arranged on one side of the solid-state light source module, which faces the adapter.

In one embodiment, an annular groove is formed in the side, facing the solid-state light source module, of the adapter, and the light homogenizing module is arranged in the annular groove of the adapter.

Compared with the prior art, the utility model has the beneficial effects that: the photographic lamp comprises the solid-state light source module, the light homogenizing module, the first regulating lens and the second regulating lens which are positioned on the light-emitting path of the solid-state light source module, and the solid-state light source module has the advantages of high light efficiency, long service life, instant lighting, high integration level and convenience in light distribution, so that the photographic lamp is small in size, can be intelligentized through an electronic circuit, is convenient to carry and install, and meanwhile, the light homogenizing module can realize homogenization of light emitted by the light source module, improves the uniformity of the photographic lamp, and greatly improves the application of the photographic lamp.

Drawings

In order to more clearly illustrate the embodiments/modes of the present application, the drawings that are required for the description of the embodiments/modes will be briefly described, and it will be apparent that the drawings in the following description are some embodiments/modes of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person having ordinary skill in the art.

FIG. 1 is an optical schematic diagram of an embodiment of a photography luminaire of the present application;

FIG. 2 is a schematic diagram of the light efficiency of the camera light adding and homogenizing module of the present application;

FIG. 3 is an optical schematic diagram of an embodiment of a photography luminaire according to the present application;

FIG. 4 is a view showing an installation structure of a dodging module of a photographic lamp according to the present application;

FIG. 5 is a view showing an installation structure of a photographic lamp according to the present application;

Fig. 6 is a mounting structure diagram of the photographic lamp of the present application.

Detailed Description

In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, and the described embodiments are merely some, rather than all, embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

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 application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

The photographic lamp comprises a solid-state light source module, a light homogenizing module and a light adjusting module, wherein the solid-state light source module can emit monochromatic light or mixed light, and comprises a plurality of light emitting units distributed in an array, a plurality of collecting lenses used for collecting the light emitted by the light emitting units and a condensing lens used for condensing the light beams emitted by the collecting lenses;

The light homogenizing module is arranged on a light path of the light emitted by the solid-state light source module and is used for homogenizing the light emitted by the solid-state light source module;

the dimming module is arranged on an optical path of the emergent light of the light homogenizing module, and the dimming module enables the divergence angle of the emergent light to be in a preset range.

As shown in fig. 1, in the first embodiment of the present application, the photographic lamp includes a solid-state light source module 100, a light homogenizing module 103, and a light adjusting module 300, where in this embodiment, the light adjusting module 300 includes a first adjusting lens 305 and a second adjusting lens 306 located on a light emitting path of the solid-state light source module.

The solid-state light source module 100 is used for emitting white light required by photography, the light homogenizing module 103 is used for homogenizing the white light emitted by the light source module 100, so that uniformity of the light emitted by the light homogenizing module 103 is good, as shown in fig. 2, S1 is an emergent light spot light effect distribution diagram of the photography lamp when the light homogenizing module 103 is not arranged, a color temperature of a central area of a spot is high, a color temperature far away from the central area is low, the uniformity of the spot is poor, S2 is an emergent light spot light effect distribution diagram of the photography lamp after the light homogenizing module 103 is arranged, the color temperature distribution of the spot at the moment is uniform, and the color temperature difference of different areas of the spot is small. It should be noted that, the light homogenizing module of the present application can not only homogenize white light, but also homogenize primary color and multicolor light. Specifically, in the present embodiment, the dodging module 103 is a fly-eye lens pair including a first fly-eye lens and a second fly-eye lens. The first fly-eye lens comprises first fly-eye lens units which are arranged periodically, the second fly-eye lens comprises second fly-eye lens units which are arranged periodically, and the first fly-eye lens units are in one-to-one correspondence with the second fly-eye lens units. Further, the collimated light beam emitted from the solid light source module 100 is projected onto the surface of the first fly-eye lens, and is spatially divided into a plurality of sub-light beams by the periodically arranged first fly-eye lens units on the surface of the first fly-eye lens, and each first fly-eye lens unit corresponds to one sub-light beam. The sub-beams are focused on the surface of the corresponding second fly-eye lens unit by the corresponding first fly-eye lens unit. By matching with the optical design of the rear end, the shape of each sub-beam on the first fly-eye lens unit can be imaged on a screen at a specific position, and finally, the image overlapped by all the sub-beams is formed on the screen, so that the homogenization of the emergent light of the solid-state light source module is realized. The working principle of the fly-eye lens belongs to known technology and is not described in detail here. It is understood that in other embodiments, the light homogenizing module may also be a single compound eye, a diffuser or a diffuser, etc.

The first adjusting lens 305 is used for first condensing the light emitted by the light homogenizing module 103, so that the light emitted by the first adjusting lens 305 has a first divergence angle, the second adjusting lens 306 is used for condensing the light emitted by the first adjusting lens 305, and emitting the condensed light beam, and both the first adjusting lens 305 and the second adjusting lens 306 can move along the optical axis direction of the emitted light, wherein the divergence angle and the spot size of the light emitted by the photography lamp are adjusted by moving the first adjusting lens 305 and the second adjusting lens 306.

Specific embodiments of the solid-state light source module 100, the light balancing module 103, and the dimming module 300 are further described below.

The solid-state light source module emits white light for illuminating a scene, specifically, the solid-state light source module includes a light emitting unit 101 packaged with a plurality of color lights, or a light emitting unit 101 packaged with a plurality of white lights, wherein it should be noted that, regardless of the solid-state light source module scheme adopted, the solid-state light source module should emit color lights meeting the shooting requirement, and the color lights can be white lights or other color lights for shooting; further, when the solid-state light source module encapsulates the light emitting units 101 of multiple colors of light, the solid-state light source module includes light emitting units 101 that can emit red light, green light, or/and blue light, and when the solid-state light source module encapsulates the light emitting units 101 of multiple colors of light, the solid-state light source module can emit white light, in an embodiment, the light emitting units 101 may be LED light emitting chips, laser light emitting chips, or light emitting chips that emit fluorescence by laser excitation, and any passive excitation light source that uses the solid-state light source as active light emission or emits light by means of the solid-state light source is included in the light emitting unit of the present application. In an embodiment, the light emitting unit includes at least two light emitting chips with color temperature, color, brightness or color rendering, and the solid-state light source module can be turned on by switching the light emitting unit to emit the emitted light with different color temperature, color, brightness or color rendering, so that the whole photographic lamp can realize illumination light with multiple color temperatures, multiple colors, multiple brightness or multiple color rendering.

Further, in a specific embodiment, the solid-state light source module 100 further includes a collection lens array 102, where the collection lens array 102 is used to collect and collimate the light emitted from the light emitting unit 101; wherein the collection lens array 102 includes a plurality of collection lenses in one-to-one correspondence with the light emitting units 101, for collecting and collimating the light emitted from the light emitting units 101 so that the etendue of the light emitted from the light emitting units 101 is substantially unchanged.

In a specific embodiment, the solid-state light source module 100 further includes a condensing lens 104, where the condensing lens 104 is configured to condense the light beam emitted from the collecting lens array 102, so as to form a light spot at the pattern disc.

The light homogenizing module 103 is disposed between the condensing lens 104 and the pattern disc GOBO, and is used for homogenizing the light emitted from the solid-state light source module 100.

The dimming module 300 includes a first adjusting lens 305 and a second adjusting lens 306, the first adjusting lens 305 is disposed on an optical path of the emergent light of the pattern disc, the first adjusting lens 305 can move along an optical axis direction of the emergent light to focus the emergent light, the first adjusting lens 305 can be one of a convex lens, a concave lens, a fresnel lens and a threaded lens, or a lens group formed by two lenses such as the convex lens, the concave lens, the fresnel lens and the threaded lens, and in the first embodiment, the first adjusting lens 305 is the convex lens.

The second adjusting lens 306 is disposed on the light path of the light emitted from the first adjusting lens 305, the second adjusting lens 306 can move along the optical axis direction of the emitted light, the diameter of the second adjusting lens 306 is larger than that of the first adjusting lens 305, so that the second adjusting lens 306 can collect the light emitted from the first adjusting lens 305 to the maximum extent, and the light utilization rate of the photography lamp can be further improved; the second adjusting lens 306 may be one of a convex lens, a concave lens, a fresnel lens and a threaded lens, or a lens group composed of two lenses of a convex lens, a concave lens, a fresnel lens and a threaded lens, in the first embodiment, the second adjusting lens 306 is a convex lens; the second adjusting lens 306 and the second adjusting lens 305 can be matched to adjust the emergent light spot and the divergence angle of the photography luminaire.

In an embodiment, as shown in fig. 3, the dimming component 300 of the present embodiment includes a reflective cup 307, and the reflective cup 307 is used to collect and emit the emitted light of the solid-state light source module, where the reflective cup 307 can move along the optical axis direction, so as to adjust the spot of the emitted light.

The specific adjustment mode of the photographic lamp is further described below;

For the embodiment shown in fig. 1, a schematic view of the first adjustment state of the embodiment of the present application is shown, and at this time, by adjusting the relative positions between the first adjustment lens 305 and the second adjustment lens 306, when the photography lamp is in the first adjustment state, the divergence angle of the outgoing light of the photography lamp is 50 °, at this time, the light spot formed on the target plane is larger, and the light utilization of the whole photography lamp is higher, so that no larger light loss is caused. It should be noted that, the outgoing beam of the solid-state light source module has a certain divergence angle, the pattern disc can cut the outgoing light of the solid-state light source module, but the outgoing light divergence angle of the solid-state light source module cannot be changed by the pattern disc, the first adjusting lens 305 and the second adjusting lens 306 adjust the outgoing light beam with a certain divergence angle, the adjustment process needs to consider the balance between the utilization rate of the photographic light and the divergence angle at the same time, the extreme of the outgoing light divergence angle cannot be realized by sacrificing too much light effect, and the light utilization rate of the photographic light can be reduced by too large or too small outgoing light divergence angle. Taking the present application as an example, the divergence angle of the outgoing light of the photography lamp can be within 25 ° to 50 ° by the movement of the first adjusting lens 305 and the second adjusting lens 306, and the light utilization of the photography lamp is above 95% at this time, so that no large light loss is caused. Further, in another embodiment, another group of lenses including the first adjusting lens and the second adjusting lens is switched, and the movement of the first adjusting lens 305 and the second adjusting lens 306 can realize the divergence angle of the outgoing light of the photography lamp in the range of 16 ° to 32 °, and the light utilization of the photography lamp is more than 97%.

In an embodiment, by adjusting the relative positions of the first adjusting lens 305 and the second adjusting lens 306, when the photography lamp is in the second adjusting state, the divergence angle of the emergent light of the photography lamp is 25 °, the first adjusting lens 305 and the second adjusting lens 306 are far away from each other, and the first adjusting lens 305 is near to the pattern disc, and according to the simulation result, the light utilization rate of the photography lamp is 98.03%. It should be noted that, when the second adjustment state reaches approximately the minimum divergence angle limit of the outgoing light of the photography lamp, and the outgoing light divergence angle of the photography lamp is further reduced, the second adjustment lens 306 needs to be moved in a direction away from the first adjustment lens 305, and at this time, a larger portion of the light beam is not collected by the second adjustment lens, and is wasted.

In an embodiment, by adjusting the relative positions of the first adjusting lens 305 and the second adjusting lens 306, when the photography lamp is in the third adjusting state, the divergence angle of the emergent light of the photography lamp is 35 °, the distance between the first adjusting lens 305 and the second adjusting lens 306 is moderate, and the first adjusting lens 305 is at a certain distance from the pattern disc, but is closer to the first adjusting state, and is farther from the second adjusting state, and at this time, the divergence angle of the emergent light of the photography lamp is other divergence angles in the range of 25-50 ° by moving the positions of the first adjusting lens and the second adjusting lens; it should be noted that, the third adjustment state is a state with the largest application scenario of the outgoing light of the photography luminaire, and the divergence angle of the photography luminaire has a wide adjustable range and high light utilization rates of different divergence angles.

It should be noted that the above states are illustrative of the range of adjustment of the divergence angle of the outgoing light that the first adjusting lens 305 and the second adjusting lens 306 included in the present application can achieve, the range of the divergence angle of the outgoing light that can be achieved by using the two adjusting lenses is relatively small, for example, 25 ° to 50 ° in the first embodiment, and in order to achieve adjustment of the divergence angle of the outgoing light that is larger or smaller, it is necessary to replace lenses of the first adjusting lens and the second adjusting lens that have different curvatures from those of the first embodiment, and the range of the divergence angle of the outgoing light that can be achieved is 16 ° to 32 ° or 50 ° to 70 °, and in any case, the range of the divergence angle of the outgoing light that can be achieved by the two adjusting lenses is limited, and more divergence angles of the outgoing light can be achieved by replacing the different adjusting lens groups.

According to the above, the dimming range that can be achieved by the two adjusting lenses is limited, so in an embodiment, the adjusting module 300 further includes a third adjusting lens, through which finer divergence angle and flare adjustment of the outgoing light of the photography lamp can be achieved, and meanwhile, the divergence angle adjustment variation range of the outgoing light of the photography lamp is also made to be larger by 0-50 °. The third adjusting lens can be one of a convex lens, a concave lens, a Fresnel lens and a threaded lens, or a lens group consisting of the convex lens, the concave lens, the Fresnel lens and the threaded lens.

For the embodiment shown in fig. 3, the dimming module 300 includes a reflective cup 307, and the control of the spot of the photographic lamp can be also achieved by moving the reflective cup 307 along the optical axis direction, but the spot adjustment accuracy brought by the dimming mode is poor, and the dimming module is applied to some occasions with coarse adjustment of the spot.

In summary, compared with the conventional gas discharge photography lamp, the photography lamp of the present application has the advantages of high light efficiency, long service life, instant lighting, high integration level, and convenient matching with the secondary optics because the solid-state light source module is a solid-state cold light source. The photographic lamp is small in size, intelligent can be realized through the electronic circuit, the data system is designed, the portable and the installation are realized, meanwhile, the light homogenizing module can realize the homogenization of the emergent light of the light source module, the uniformity of the photographic lamp is improved, and the application of the photographic lamp is greatly improved.

As shown in fig. 4, a schematic diagram of an installation structure of the dodging module 103 according to the present application is shown, the solid state light source module 100 includes an annular groove 108 and a connecting hole 109 for setting the dodging module, wherein the annular groove 108 is disposed inside a housing of the solid state light source module 100, and when the dodging module 103 is disposed on the groove 108, the dodging module can dodging a light beam emitted from the solid state light source module. It should be noted that, in an embodiment, the photographic lamp further includes an adaptor 200, the adaptor 200 is used for implementing connection between the solid-state light source module 100 and the dimming module, further, the adaptor 200 is an annular penetrating housing, the adaptor 200 includes a first connection portion 202, the first connection portion 200 is a flange angle protruding from the housing, in this embodiment, the adaptor 200 includes 4 flange angles that are uniformly distributed, the 4 flange angles are locked with the connection holes of the solid-state light source module 100 respectively through screws, so as to implement fixation of the adaptor 200 and the solid-state light source module 100, further, the adaptor 200 further includes a second connection portion 203, and the second connection portion 203 is an embedded groove disposed in the housing facing the dimming module. It should be noted that, in an embodiment, the side of the adaptor 200 facing the solid-state light source module 100 is provided with an annular groove 201, and the light homogenizing module 103 may also be disposed in the annular groove 201 of the adaptor 200.

As shown in fig. 5, the dimming module 300 of the photographic lamp includes a housing, the first adjusting lens and the second adjusting lens are disposed in the housing, a side of the housing facing the adapter 200 is provided with protrusions adapted to the embedded grooves of the second connecting portion 203, the number of the protrusions is the same as that of the embedded grooves, the dimming module 300 is embedded into the embedded grooves of the adapter, and then the protrusions are rotated forward to fix the dimming module and the adapter, and when the dimming module and the adapter are required to be disassembled, the dimming module is rotated reversely, so that the protrusions of the dimming module are just located in the gaps of the embedded grooves of the adapter, and the dimming module and the adapter can be separated.

As shown in fig. 6, the dimming module of the photography lamp is a reflector dimming scheme, and the structural assembly is the same as that of the dimming module of fig. 5, and is not described here.

The foregoing description is only illustrative of the present application and is not intended to limit the scope of the application, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present application.

Claims (9)

1. The photographic lamp comprises a solid-state light source module, a light homogenizing module, a light adjusting module and an adapter, wherein the solid-state light source module can emit monochromatic light or mixed light, and comprises a plurality of light emitting units distributed in an array, a plurality of collecting lenses for collecting the light emitted by the light emitting units, and a condensing lens for condensing the light beams emitted by the collecting lenses;

The light homogenizing module is arranged on a light path of the light emitted by the solid-state light source module and is used for homogenizing the light emitted by the solid-state light source module;

The light modulation module is arranged on a light path of the emergent light of the light homogenizing module, and the light modulation module enables the divergence angle of the emergent light to be in a preset range;

The adapter is used for realizing the connection between the solid-state light source module and the dimming module.

2. The photographic lamp of claim 1, wherein the dimming module comprises a first adjusting lens and a second adjusting lens, the first adjusting lens and the second adjusting lens are one of a convex lens, a concave lens, a fresnel lens and a threaded lens, or a lens group consisting of the convex lens, the concave lens, the fresnel lens and the threaded lens, and the first adjusting lens and the second adjusting lens can move along the optical axis direction of emergent light.

3. The photographic lamp of claim 2, wherein the range of divergence angle of the outgoing light of the photographic lamp is 25 ° -50 ° by moving the first and second adjusting lenses in the outgoing light optical axis direction.

4. A photographic lamp as claimed in claim 2, wherein the divergence angle of the outgoing light of the photographic lamp is in the range of 16 ° -32 ° by moving the first and second adjusting lenses in the outgoing light optical axis direction.

5. The photographic lamp of claim 1, wherein the dimming module comprises a reflector cup for converging outgoing light from the solid-state light source module, the reflector cup being movable along a beam optical axis of the outgoing light.

6. The photographic lamp of claim 1, wherein the adapter comprises an annular through housing, the adapter comprises a first connection portion, the first connection portion is a flange angle protruding out of the housing, the solid-state light source module comprises a connection hole, and the adapter and the solid-state light source module are locked by threading screws through the connection hole and the flange angle.

7. The photographic lamp of claim 6, wherein the adapter comprises a second connecting portion, the second connecting portion is an embedded groove arranged on the shell and faces the dimming module, the dimming module comprises a shell, and a projection matched with the embedded groove of the second connecting portion is arranged on one side of the shell, facing the adapter.

8. The photographic lamp of claim 1, wherein the solid state light source module comprises an annular groove for disposing the light homogenizing module, the annular groove being disposed on a side of the solid state light source module facing the adapter.

9. The photographic lamp of claim 1, wherein a side of the adapter facing the solid state light source module is provided with an annular groove, and the light homogenizing module is disposed in the annular groove of the adapter.