CN220119188U - Anti-dazzle optical system and stage lamp with same - Google Patents

Abstract

The utility model discloses an anti-dazzle optical system and a stage lamp with the same, wherein the anti-dazzle optical system comprises a light source for generating a light path, a shading component, an amplifying component and a light-emitting lens, wherein the shading component, the amplifying component and the light-emitting lens are sequentially arranged along the emergent direction of the light path, the light path is provided with a main optical axis, the amplifying component can move forwards and backwards along the main optical axis, the amplifying component comprises the amplifying lens and a first substrate for installing and fixing the amplifying lens, the shading component is provided with a first state for shading stray light and a second state for allowing the amplifying component to freely pass through, and when the shading component is in the first state, a light beam passing through the shading component is projected in a range limited by the outer periphery of the first substrate. Through setting up the shading subassembly, when the shading subassembly is in the first state, block the parasitic light beyond the first base plate periphery for the light that gets into the light-emitting lens all comes from the magnifying lens, and in the working process of magnifying the subassembly, the angle transformation appearance of light is unanimous, can not form obvious glare at the target plane.

Description

Anti-dazzle optical system and stage lamp with same

Technical Field

The utility model relates to the technical field of stage lamps, in particular to an anti-dazzle optical system and a stage lamp with the same.

Background

The magnifying lens and the focusing lens are common in stage lamps and widely applied, for example, the magnifying lens can be used for magnifying or reducing the light spot on the target plane by moving the magnifying lens back and forth along the light path; the sharpness of the spot is changed by moving the focus lens along the optical path. Based on the above, after the pattern module is added into the lamp body, the effect is more abundant, so that the pattern which is originally only plane static becomes more vivid.

The effect lens is usually arranged between the focusing lens and the amplifying lens, the amplifying lens is required to be closely attached to the focusing lens in order to realize the projection of the stage lamp to emit a small-angle light beam, and the amplifying lens passes through the effect lens at the moment, so that the size of a substrate of the amplifying lens can only be reduced in order to avoid the collision between the amplifying lens and the effect lens; however, when the stage lamp needs to project a large-angle light beam, some light rays directly enter the light-emitting lens without passing through the amplifying lens, and the projection angle of the light rays deviates from the projection angle of the main light beam, so that glare is formed, and the stage effect is greatly reduced.

Disclosure of Invention

The utility model aims to overcome at least one defect in the prior art, and provides an anti-dazzle optical system and a stage lamp with the same, which can effectively prevent glare and improve the problem of uneven light spot brightness.

In order to solve the technical problems, the utility model adopts the following technical scheme: an anti-dazzle optical system and a stage lamp with the same, wherein the anti-dazzle optical system comprises a light source for generating a light path, a shading component, an amplifying component and a light-emitting lens, wherein the shading component, the amplifying component and the light-emitting lens are sequentially arranged along the emergent direction of the light path, the light path is provided with a main optical axis, the amplifying component can move forwards and backwards along the main optical axis, the amplifying component comprises an amplifying lens and a first substrate for mounting and fixing the amplifying lens, the shading component is provided with a first state for shading stray light and a second state for allowing the amplifying component to freely pass through, and when the shading component is in the first state, a light beam passing through the shading component is projected in a range limited by the outer periphery of the first substrate.

By arranging the shading component, when the shading component is in the first state, stray light outside the outer periphery of the first substrate is blocked, so that light rays entering the light-emitting lens come from the amplifying lens, and in the working process of the amplifying component, the angle transformation of the light rays is consistent, and obvious glare cannot be formed on a target plane; when the amplifying assembly needs to be moved to different positions, the shading assembly can be switched to the second state, the amplifying assembly is allowed to pass freely, the amplifying assembly is enabled to be as close to the light source as possible, the structure of the optical system is more compact, the whole optical system is more flexible, and the operation is convenient.

Further, the position of the shading component in the light path is fixed. The shading component is fixed at a specific position in the light path, so that an operator can calculate and preset the opening and closing degree of the shading component according to the movement track of the amplifying component, the shading component can always shade or absorb stray light in the operation process of the optical system, and the stability of the quality of light spots projected by the optical system on a target plane is ensured.

Further, the optical axis adjusting device further comprises a first side plate and a second side plate which are parallel to the main optical axis, wherein the first side plate is provided with a sliding rail for sliding connection of the amplifying assembly, and the shading assembly is fixedly arranged on the second side plate. The amplifying assembly and the shading assembly are respectively arranged on the two different side plates, so that the movement of the two assemblies is independent, and the amplifying assembly is prevented from being blocked by the shading assembly in the sliding process.

Further, the shading component comprises a transmission mechanism, a motor and at least 2 light blocking sheets, and the light blocking sheets are driven by the motor and the transmission mechanism to translate or swing under the cooperation of the motor and the transmission mechanism, so that the shading component is switched between the first state and the second state. When the light blocking sheets are used for blocking stray light through translational movement (namely a curtain pulling mode), at least 2 light blocking sheets are driven by the motor to be relatively translated, so that the light blocking assembly is in the first state, and when the light blocking sheets are translated in the directions away from each other, the light blocking assembly is in the second state; when the light blocking sheet is driven by the motor to block stray light, at least 2 light blocking sheets swing, namely the free ends of the light blocking sheets are close to each other to switch the light blocking assembly to the first state, and conversely, the free ends of the light blocking sheets are far away from each other to switch the light blocking assembly to the second state.

Further, the light blocking sheet is driven by the same motor. Therefore, only 1 motor can be arranged to control the movement of a plurality of light blocking sheets, and the volume of the light blocking component is reduced.

Further, an arc light-passing notch allowing light to pass through freely is formed in one side, close to the light path, of the free end of the light blocking sheet, and when the light blocking assembly is in the first state, the arc light-passing notches of the light blocking sheets are combined together to form a circular light-passing hole. Is matched with the shape of the light incident surface of the amplifying lens

Further, an avoidance notch is formed in one side, close to the light path, of the fixed end of the light blocking piece, and when the light blocking component is in the second state, the avoidance notch allows the amplifying component to freely pass through. The arrangement of the avoidance notch enables the distance between the light blocking sheets to be short, enough passing space can be provided for the amplifying assembly, the structure of the light blocking assembly is further optimized, and the size is reduced.

Further, the light shielding assembly further comprises a first stop lever limiting the movement of the light shielding sheet to be in the first state and/or a second stop lever limiting the movement of the light shielding sheet to be in the second state. By the arrangement, the light shielding component can be more accurately positioned at the first state and/or the second state, and meanwhile damage caused by accidental removal of the light shielding component by the light shielding sheet is avoided.

Further, the light source focusing device further comprises a focusing assembly located between the shading assembly and the light source and an effect lens fixedly installed between the shading assembly and the focusing assembly, the effect lens can selectively cut into the light path and generate an effect by intercepting the light path, and the amplifying assembly moves back and forth between the focusing assembly and the light outlet lens. The light beam is emitted from the focusing assembly and then enters the effect lens, the light beam with the effect is filtered by the shading assembly and then enters the amplifying assembly, finally the light beam is emitted from the light emitting lens, and a light spot without obvious glare is formed on a target plane. Meanwhile, when the optical system needs to project a small-angle light spot, the amplifying assembly needs to be abutted against the focusing assembly to jointly generate an optical effect, and at the moment, the effect lens can be cut out of a light path without obstructing the movement of the amplifying assembly.

The utility model also provides a stage lamp, which is provided with any one of the optical systems and a lamp holder for accommodating and mounting the optical system, wherein the lamp holder is provided with a light outlet, the light outlet is covered on the light outlet, and the light source is fixedly mounted at the bottom of the lamp holder far away from the light outlet.

Drawings

Fig. 1 is a schematic view of an antiglare optical system according to a first embodiment of the present utility model, with the second side plate removed.

Fig. 2 is a schematic diagram of an exploded structure of the antiglare optical system according to the first embodiment of the present utility model with the second side plate removed.

Fig. 3 is a schematic view of an exploded structure of the shading assembly according to the first embodiment of the present utility model.

Fig. 4 is a schematic structural view of the light shielding assembly in the first state and the second state according to the first embodiment of the present utility model.

Fig. 5 is a schematic view of an exploded structure of the antiglare optical system according to the second embodiment of the present utility model with the second side plate removed.

Fig. 6 is a schematic view of an exploded structure of the light shielding assembly according to the second embodiment of the present utility model.

Fig. 7 is a schematic structural view of the light shielding assembly in a first state and a second state according to a second embodiment of the present utility model.

FIG. 8 is a schematic diagram of a stage lamp with an anti-glare optical system according to the present utility model.

In the figure:

100. a shade assembly; 110. a light blocking sheet; 111. a free end; 112. a fixed end; 113. an arc light-transmitting notch; 114. avoiding the notch; 115. a light-transmitting hole; 120. a transmission mechanism; 121. a first drive wheel; 122. a first driven wheel; 123. a guide rail; 124. a belt; 125. a slide block; 126. a second driving wheel; 127. a second driven wheel; 128. a steel strip; 130. a motor; 140. a first stop lever; 150. a second stop lever; 160. a second substrate; 200. a light source; 300. an amplifying assembly; 310. an amplifying lens; 320. a first substrate; 400. a light-emitting lens; 500. a first side plate; 510. a transmission belt; 520. a fixed block; 530. a slide rail; 600. a focusing assembly; 700. a light outlet; 810. a lamp base; 820. a support arm; 830. and a case.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationship depicted in the drawings is for illustrative purposes only and is not to be construed as limiting the present patent.

As shown in fig. 1 to 4, the present utility model provides an anti-glare optical system and stage lamp having the same, wherein the anti-glare optical system includes a light source 200 for generating a light path, a light shielding component 100, an amplifying component 300, and a light emitting lens 400 sequentially disposed along an outgoing direction of the light path, the light path has a main optical axis, the amplifying component 300 can move back and forth along the main optical axis, the amplifying component 300 includes an amplifying lens 310 and a first substrate 320 for mounting and fixing the amplifying lens 310, the light shielding component 100 has a first state for shielding stray light and a second state for allowing the amplifying component 300 to pass freely, and when the light shielding component 100 is in the first state, a light beam passing through the light shielding component 100 is projected within a range defined by an outer periphery of the first substrate 320.

By arranging the light shielding component 100, when the light shielding component 100 is in the first state, stray light outside the outer periphery of the first substrate 320 is blocked, so that light entering the light emitting lens 400 comes from the amplifying lens 310, and in the working process of the amplifying component 300, the angle transformation of the light is consistent, and no obvious glare is formed on a target plane; when the amplifying assembly 300 needs to be moved to a different position, the light shielding assembly 100 may be switched to the second state, allowing the amplifying assembly 300 to freely pass through, and the amplifying assembly 300 is as close to the light source 200 as possible, so that the optical system is more compact in structure, flexible in overall optical system, and convenient to operate. When the amplifying assembly 300 is closer to the light-emitting lens 400, the amplifying assembly 300 is farther from the light source 200, and the light beam emitted from the light source 200 has a certain divergence angle, so that the stray light blocked by the light-shielding assembly 100 is the greatest at this time.

Preferably, the surface of the light shielding member 100 forms a light absorbing surface through a matte process or a diffuse reflection process.

Preferably, the surface of the first substrate 320 is also formed with a light absorption surface by matte treatment or diffuse reflection treatment, and the first substrate 320 is matched with the light shielding component 100 to absorb or reflect stray light.

In a preferred embodiment of the utility model, the position of the shutter assembly 100 in the light path is fixed. By fixing the light shielding component 100 at a specific position in the optical path, an operator can calculate and preset the opening and closing degree of the light shielding component 100 according to the movement track of the amplifying component 300, so that the light shielding component 100 can always shield or absorb stray light in the operation process of the optical system, and the stability of the quality of the light spot projected by the optical system on the target plane is ensured.

In a preferred embodiment of the present utility model, the optical module further comprises a first side plate 500 and a second side plate disposed parallel to the main optical axis, the first side plate 500 is mounted with a sliding rail 530 for sliding connection of the amplifying assembly 300, and the light shielding assembly 100 is fixedly mounted on the second side plate. By arranging the amplifying assembly 300 and the shading assembly 100 on two different side plates respectively, the movement of the two assemblies is independent, so that the amplifying assembly 300 is not blocked by the shading assembly 100 in the sliding process.

Preferably, the first side plate 500 is disposed opposite to the second side plate.

Preferably, the first substrate 320 is fixedly connected to a fixing block 520, and the amplifying assembly 300 is slidably mounted on the sliding rail 530 through the fixing block 520. The magnifying assembly 300 further includes a driving mechanism for providing driving force and a driving belt 510 connected to the fixing block 520, where the driving mechanism transmits the driving force to the fixing block 520 through the driving belt 510, so as to drive the magnifying lens 310 to move back and forth along the main optical axis.

In a preferred embodiment of the present utility model, the light shielding assembly 100 includes a transmission mechanism 120, a motor 130, and at least 2 light shielding sheets 110, and the light shielding sheets 110 are driven by the motor 130 and the transmission mechanism 120 to translate or swing, so that the light shielding assembly 100 is switched between the first state and the second state. When the light blocking sheet 110 is moved in a translational manner (i.e., a curtain pulling manner) to block stray light, at least 2 light blocking sheets 110 are moved in opposite directions under the driving of the motor 130, so that the light blocking assembly 100 is in the first state, and when the light blocking sheets 110 are moved in directions away from each other, the light blocking assembly 100 is in the second state; when the light blocking sheet 110 is swung to block stray light, at least 2 light blocking sheets 110 are swung under the driving of the motor 130, that is, the free ends 111 of the light blocking sheets 110 are close to each other, so that the light blocking assembly 100 is switched to the first state, whereas the free ends 111 of the light blocking sheets 110 are far away from each other, so that the light blocking assembly 100 is switched to the second state.

In a preferred embodiment of the present utility model, the light blocking sheet 110 is driven by the same motor 130. Thus, only 1 motor 130 may be provided to control the movement of the plurality of light blocking sheets 110, thereby reducing the volume of the light shielding assembly 100. Preferably, the light shielding assembly 100 further includes a second substrate 160, and the light shielding sheet 110 and the motor 130 are respectively located at different sides of the second substrate 160.

Preferably, when the light shielding assembly 100 is switched to the first state or the second state by using a curtain pulling manner, the number of the light shielding sheets 110 is 2, the transmission mechanism 120 includes a first driving wheel 121, a first driven wheel 122, a belt 124, 2 guide rails 123, and a slider 125 slidably mounted on the guide rails 123, the belt 124 is simultaneously sleeved on the first driving wheel 121 and the first driven wheel 122, and the light shielding sheets 110 are fixedly connected to the belt 124 through the slider 125; the motor 130 is mounted on the front surface of the second substrate 160, and a rotating shaft of the motor 130 passes through the second substrate 160 and is fixedly connected with the first driving wheel 121 located on the back surface. By means of the arrangement, only the arc-shaped light through gaps 113 are arranged on one side edges, close to each other, of the 2 light blocking sheets 110, and when the two light blocking sheets are in mutual abutting connection, a circular light through hole 115 is formed, so that stray light can be accurately blocked, and the operation is easy.

As shown in fig. 5 to fig. 7, in another embodiment of the present utility model, when the light blocking sheet 110 is switched between the first state and the second state by swinging, the transmission mechanism 120 and the light blocking sheet 110 are located on the front surface of the second substrate 160; the transmission mechanism 120 includes a second driving wheel 126, a second driven wheel 127, and a steel belt 128, where the second driving wheel 126 is connected with the second driven wheel 127 by the steel belt 128, and a rotating shaft of the motor 130 passes through the second substrate 160 and is connected with the second driving wheel 126, and the motor 130 drives the second driving wheel 126 to rotate, so as to drive the second driven wheel 127 to rotate, so that the free ends 111 of at least 2 light blocking sheets 110 swing in opposite directions or swing away from each other.

Optionally, the driving wheel is a gear, and the driving mechanism is fixedly connected and transmits power to one of the gears.

In a preferred embodiment of the present utility model, the free end 111 of the light blocking sheet 110 near the light path has an arc light-passing notch 113 for allowing light to pass freely, and when the light blocking assembly 100 is in the first state, the arc light-passing notches 113 of the light blocking sheets 110 are combined together to form a circular light-passing hole 115. The light-passing hole 115 may be approximately circular.

In a preferred embodiment of the present utility model, a side of the fixed end 112 of the light blocking sheet 110, which is close to the optical path, is provided with a avoidance notch 114, and when the light blocking assembly 100 is in the second state, the avoidance notch 114 allows the amplifying assembly 300 to freely pass through. The arrangement of the avoidance notches 114 makes the distance between the light blocking sheets 110 shorter, so that a sufficient passing space can be provided for the amplifying assembly 300, and the structure of the light blocking assembly 100 is further optimized, so that the size is reduced.

In a preferred embodiment of the present utility model, the light shielding assembly 100 further includes a first blocking lever 140 that limits the movement of the light shielding sheet 110 to be in the first state, and/or a second blocking lever 150 that limits the movement of the light shielding sheet 110 to be in the second state. By the arrangement, the light shielding assembly 100 can be more accurately positioned at the first state and/or the second state, and damage caused by the fact that the light shielding plate 110 is accidentally moved out of the light shielding assembly 100 is avoided.

In a preferred embodiment of the present utility model, the optical system further comprises a focusing assembly 600 located between the light shielding assembly 100 and the light source 200, and an effect lens fixedly installed between the light shielding assembly 100 and the focusing assembly 600, wherein the effect lens can selectively cut into the optical path and generate an effect by intercepting the optical path, and the amplifying assembly 300 performs a back and forth movement between the focusing assembly 600 and the light emitting lens 400. By adding the effect lens, the light beam enters the effect lens after exiting from the focusing assembly 600, the light beam with effect enters the amplifying assembly 300 after being filtered by the shading assembly 100, finally exits from the light-emitting lens 400, and forms a flare without obvious glare on the target plane. Meanwhile, when the optical system needs to project a light spot with a small angle, the magnifying element 300 needs to be abutted against the focusing element 600 to generate an optical effect together, and the effect lens can be cut out of the optical path at this time, so that the movement of the magnifying element 300 is not blocked.

Preferably, the effect lens is an atomising sheet and/or a prism.

As shown in fig. 1 and 8, the present utility model further provides a stage lamp, which has any one of the aforementioned optical systems, and further includes a lamp cap 810 for accommodating and mounting the optical system, where the lamp cap 810 has a light outlet 700, the light outlet 700 is covered by the light outlet lens 400, and the light source 200 is fixedly mounted at the bottom of the lamp cap 810 away from the light outlet 700. Preferably, the light source 200 may be one of a bubble light source 200, an LED light source 200, or a laser light source 200.

Preferably, the stage lamp further comprises a support arm 820 for pivoting the lamp head 810 and a housing 830 for pivoting the support arm 820, the lamp head 810 being rotatable relative to the housing 830 about at least 2 dimensions.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. The utility model provides an anti-glare optical system, its characterized in that includes light source (200) that are used for producing the light path, and follow light shielding subassembly (100), amplifying subassembly (300), the light-emitting lens (400) that the light path emergent direction set gradually, the light path has the main optical axis, amplifying subassembly (300) can follow the main optical axis carries out the back and forth motion, amplifying subassembly (300) include amplifying lens (310) and be used for installing and fix first base plate (320) of amplifying lens (310), light shielding subassembly (100) have the first state that shelters from parasitic light and allow amplifying subassembly (300) free passage's second state, when light shielding subassembly (100) are in first state, the light beam that passes through light shielding subassembly (100) throws in the within the scope that first base plate (320) periphery limited.

2. The optical system according to claim 1, characterized in that the position of the shutter assembly (100) in the optical path is fixed.

3. The optical system of claim 1, further comprising a first side plate (500) and a second side plate disposed parallel to the main optical axis, the first side plate (500) being mounted with a slide rail (530) for sliding connection of the magnifying assembly (300), the light-shielding assembly (100) being fixedly mounted on the second side plate.

4. The optical system according to claim 1, wherein the light shielding component (100) comprises a transmission mechanism (120), a motor (130) and at least 2 light shielding sheets (110), and the light shielding sheets (110) are driven by the motor (130) and the transmission mechanism (120) to translate or swing, so that the light shielding component (100) is switched between the first state and the second state.

5. An optical system according to claim 4, characterized in that the light barrier (110) is driven by the same motor (130).

6. The optical system according to claim 4, wherein the free end (111) of the light blocking sheet (110) is provided with an arc light-passing notch (113) near the light path side for allowing light to pass freely, and when the light blocking assembly (100) is in the first state, the arc light-passing notches (113) of the plurality of light blocking sheets (110) are combined together to form a circular light-passing hole.

7. The optical system according to claim 4, wherein the fixed end (112) of the light blocking sheet (110) is provided with an avoidance gap (114) near the light path side, and the avoidance gap (114) allows the amplifying assembly (300) to freely pass through when the light blocking assembly (100) is in the second state.

8. An optical system according to claim 4, wherein the light shielding assembly (100) further comprises a first stop lever (140) limiting the movement of the light shielding sheet (110) to the first state and/or a second stop lever (150) limiting the movement of the light shielding sheet (110) to the second state.

9. The optical system of claim 1, further comprising a focusing assembly (600) positioned between the light shielding assembly (100) and the light source (200) and an effect lens fixedly mounted between the light shielding assembly (100) and the focusing assembly (600), the effect lens selectively cutting into the optical path and generating light effects by intercepting the optical path, the amplifying assembly (300) performing a back and forth motion between the focusing assembly (600) and the light extraction lens (400).

10. Stage lamp having an optical system according to any of claims 1 to 9, further comprising a lamp cap for receiving and mounting the optical system, the lamp cap having a light outlet (700), the light outlet (700) being covered by the light outlet lens (400), the light source (200) being fixedly mounted at the bottom of the lamp cap remote from the light outlet (700).