CN218523500U - Optical assembly and lamp - Google Patents

Abstract

The present application relates to an optical assembly and a luminaire. The optical assembly comprises a main body part, a polarizing lens, a dodging lens and a light source. The main body includes a side wall, an inner wall, and an opening. The inner wall and the side wall extend in the thickness direction of the main body. The opening is provided on one side of the main body in the thickness direction. A cavity is formed between the side wall and the inner wall; the opening part is communicated with the cavity. The polarized lens is arranged in the cavity. The polarizing lens includes a polarizing surface away from the opening and a light exit surface close to the opening. The polarizing plane comprises a plurality of sawtooth units. The dodging lens is arranged at the opening part and seals the cavity. The light source is arranged on the inner wall, and the light emitting direction of the light source faces the polarization plane. Through setting up like this, the light of light source transmission can propagate polarisation face to polarisation lens, reflects the back to light through polarisation face, and light can only leave optical assembly through dodging lens to guarantee that the light of leaving from the opening all has comparatively even luminance.

Description

Optical assembly and lamp

Technical Field

The application relates to the technical field of lighting, in particular to an optical assembly and a lamp.

Background

In daily work or study, the lighting lamp is usually used for light supplement to create a good optical environment, so that the lighting lamp is a necessary article for daily work. There are also many types of lighting fixtures, such as desk fixtures, hanging fixtures, folding fixtures, etc., to meet various needs of people.

In the use process of the lighting lamp, strong light can stimulate eyes of people, and excessively dim light can easily cause eye fatigue of people. Therefore, the performance of the luminaire, especially the light distribution, will directly affect the comfort level and eye health of people.

SUMMERY OF THE UTILITY MODEL

The application provides an optical assembly and a lamp so as to solve some or all of the defects in the related art.

A first aspect of the present application provides an optical assembly including a main body portion, a polarizing lens, a light uniformizing lens, and a light source. The main body includes a side wall, an inner wall, and an opening. The inner wall and the side wall extend in a thickness direction of the main body portion. The opening is provided on one side of the main body in the thickness direction. A cavity is formed between the side wall and the inner wall. The opening part is communicated with the cavity. The polarized lens is arranged in the cavity. The polarized lens comprises a polarized surface far away from the opening part and a light-emitting surface close to the opening part. The polarizing plane comprises a plurality of sawtooth units. The dodging lens is arranged at the opening part and seals the cavity. The light source set up in the inner wall, just the light-emitting direction of light source faces the plane of polarisation. Through setting up like this, the light of light source transmission can propagate polarisation face to polarisation lens, reflects the back to light through polarisation face, and light can only leave optical assembly through dodging lens to guarantee that the light of leaving from the opening all has comparatively even luminance.

Further, the saw tooth unit comprises a first surface, a second surface and a bottom edge connecting the first surface and the second surface; the first surface extends from the bottom edge towards the light source and is far away from the light emitting surface; the second surface extends from the bottom edge away from the light source and away from the light-emitting surface; the first surface extends a distance greater than the second surface. Through setting up like this, the first surface homoenergetic that is located the sawtooth unit of polarisation face optional position can reflect the light that the light source sent out, improves polarizing lens reflection efficiency to light.

Further, the first surface is provided as a plane; and/or the first surface is arranged to be an arc-shaped surface, and the arc-shaped surface faces the light emitting surface. The first surface can control the trend of light better for the plane, and the first surface can reflect dispersed, soft light for the arcwall face.

Further, the optical assembly further includes a reflective plate. The reflecting plate is arranged in the cavity and is arranged between the polarized lens and the main body part close to the polarized surface. By arranging the reflecting plate, the utilization rate of light rays of the light source can be improved, so that the light rays which are remained in the cavity can be reflected by the reflecting plate as much as possible and leave the optical assembly through the opening part.

Further, the dodging lens comprises a fly-eye lens, the fly-eye lens comprises a plane side and a concave-convex side, and the plane side is close to the polarized lens. Through setting up fly eye lens, can go on softly a plurality of concentric light rings, carry out edge scatter and soft focus with each light ring for edge connection between the adjacent light ring, thereby realize that optical assembly's light-emitting is even

Further, the fly-eye lens includes a plurality of dodging units; the light homogenizing units are the same in size and cover the fly eye lens. By the arrangement, the dodging effect of each position of the fly-eye lens is the same, so that the optical assembly does not need to be aligned and installed for different dodging units during assembling.

Further, the ratio of the height of the dodging unit to the width of the dodging unit is greater than or equal to 0.2 and less than or equal to 0.35. By this arrangement, the uniformity of light is better and the loss of light flux is less.

Further, the optical component includes a hollow portion extending in the thickness direction, the hollow portion being provided at a center of the optical component. The hollow part is arranged to reduce the weight of the optical assembly to a certain extent, so that the weight of the lamp is reduced, the portability of the optical assembly and the lamp is improved, and the lamp is convenient for a user to move. And the hollow part can increase the visual transparency and lightness of the optical assembly, so that better visual experience is brought to users.

A second aspect of the present application provides a luminaire comprising an optical assembly as described in any one of the preceding embodiments, such that the luminaire is capable of providing a soft lighting effect to a user.

Further, the lamp also comprises a lamp holder and a stand column; the post connects the lamp holder and the optical assembly. Through setting up like this, lamps and lanterns need not to put into use through installation such as punching, wiring to can also place on the desktop firmly, need not additionally to look for the support.

Further, the upright comprises an upright body and a first connecting part which is rotatably connected with the upright body; the first connecting portion is rotatable about an extension axis of the column body; the upright post body is connected with the lamp holder. By such an arrangement, the user can flexibly adjust the irradiation position of the optical component on the horizontal plane.

Further, the optical component includes a hollow portion extending in the thickness direction, the hollow portion being provided at a center of the optical component; the pillar includes a second connecting portion extending perpendicular to the thickness direction; the second connecting part is arranged in the hollow part and is rotatably connected with the optical component. By so arranging, the user can adjust the tilt of the optical assembly.

Further, the upright includes a third connecting portion; the third connecting part is pivoted with the lamp holder. The arrangement of the third connecting part also can facilitate the user to adjust the light irradiation position of the optical assembly.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 shows an overall schematic view of an embodiment of a luminaire of the present application, with the desk lamp in a vertical state.

Fig. 2 shows an overall schematic view of the luminaire shown in fig. 1 in a tilted state.

FIG. 3 shows a schematic cross-sectional view of one embodiment of an optical assembly of a luminaire of the present application.

Fig. 4 is a partially enlarged sectional view of one embodiment of a polarizing lens of the present application.

Fig. 5 is a partially enlarged sectional view of another embodiment of the polarizing lens of the present application.

FIG. 6 is a partial enlarged cross-sectional view of one embodiment of the dodging lens of the present application.

The lighting device comprises a 100 lamp, a 1 optical component, a 11 main body part, a 111 inner wall, a 112 side wall, a 113 opening part, a 114 cavity, a 115 first clamping piece, a 12 polarizing lens, a 121 polarizing surface, a 122 light-emitting surface, a 123 sawtooth unit, a 1231 first surface, a 1232 second surface, a 1233 bottom edge, a 13 dodging lens, a 131 plane side, a 132 concave-convex side, a 133 dodging unit, a 14 light source, a 15 reflecting plate, a 16 pressing plate, a 161 second clamping piece, a 17 hollow part, a 2 upright post, a 21 upright post body, a 22 first connecting part, a 23 second connecting part, a 24 third connecting part, a 25 decorating piece, a 26 damping piece, a 27 fastener, a 3 lamp holder, a 4 power line, a 5 control panel, an X radial direction, a Z thickness direction, an HS horizontal plane, an A extending axis, a W width, a D height and an alpha polarization included angle.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The manner in which the following exemplary embodiments are described does not represent all manner of consistency with the present application. Rather, they are merely examples of apparatus consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Similarly, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one, and if only "a" or "an" is denoted individually. "plurality" or "a number" means two or more. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

As shown in fig. 1, the present application provides a luminaire 100. In the embodiment shown in fig. 1, the luminaire 100 comprises an optical assembly 1, a post 2, a socket 3. The post 2 connects the optical assembly 1 and the socket 3. In other words, the luminaire 100 shown in fig. 1 is a desktop luminaire 100 capable of being placed on a desktop. Thus, the luminaire 100 can be put into use without being installed through punching, wiring, etc., and can also be stably placed on a desktop without additionally finding a support. However, in other embodiments, a suspension type lamp, a clip-on type lamp, or the like including the optical assembly 1 of the present application may be used, and the present application is not limited thereto.

The luminaire 100 shown in fig. 1 and 2 further comprises a power cord 4 for connection to an electrical outlet for providing power to the luminaire 100 via a power system, thereby enabling a durable and stable power input to the luminaire 100. However, in other embodiments, the light fixture 100 may also include a battery compartment (not shown) for mounting a battery, and the light fixture 100 may be powered by a power source such as a dry battery, a secondary battery, a solar cell, or the like. Since the luminaire 100 does not need to be powered through the power cord 4, the luminaire 100 can be placed in any desired location without worrying about the distance between the power cord 4 and the socket being too far, and since the power cord 4 is not present, the appearance of the luminaire 100 is also more concise and aesthetically pleasing.

In embodiments where the luminaire 100 comprises a power cord, the bottom of the socket 3 may be provided with a recess (not shown) for accommodating the power cord, so that excess power cord can be placed in the recess, avoiding the power cord being too long and causing untidiness of vision and occupation of space. When the lamp 100 is not needed to be used, the whole power lines are accommodated in the grooves, so that the smoothness of the lamp 100 can be improved.

In addition, the luminaire 100 may further include a control panel 5 disposed on the lamp socket 3 for operating switches of the luminaire 100, adjusting brightness, adjusting color temperature, or setting timing to turn off. The control panel 5 is integrated in the lamp holder 3, so that the compactness of the structure of the lamp 100 can be improved, and the control panel 5 can be conveniently operated by a user. The control panel 5 may be a touch panel, so as to improve the technological sense and the appearance finish of the lamp 100; or it may be a key panel to provide a more realistic and direct tactile impression of the press for the user. In the embodiment that the luminaire 100 includes the power line 4, the control panel 5 may be disposed at the power line 4, which is not limited in the present application.

Referring to fig. 3, in an embodiment where the light fixture 100 includes a post 2, the post 2 includes a post body 21 connected with the socket 3 and a first connection portion 22 rotatably connected with the post body 21. And the first connecting portion 22 can rotate around the extension axis a of the column body 21, thereby rotating the optical assembly 1 around the extension axis a of the column body 21. By this arrangement, the user can flexibly adjust the irradiation position of the optical module 1 on the horizontal plane HS. For example, in an embodiment in which the central axis of the optical component 1 does not coincide with the extension axis a of the column body 21, the main irradiation position of the optical component 1 can be adjusted by rotating the first connection portion 22 or the optical component 1. In the embodiment in which the central axis of the optical unit 1 coincides with the extension axis a of the column body 21, even when the light source 14 of the optical unit 1 has uneven brightness due to long-term use, the position with high brightness can be adjusted to the main irradiation position by rotating the first connection portion 22 or the optical unit 1.

When the first connection portion 22 is assembled in the column body 21, the first connection portion 22 needs to be inserted into the column body 21, in order to exhaust the gas in the column body 21 and further facilitate the installation of the first connection portion 22, in some embodiments, the first connection portion 22 is configured as a hollow cylinder, so that the gas in the column body 21 can exit through the hollow cylinder. Taking the embodiment shown in fig. 3 as an example, in order to improve the aesthetic appearance of the lamp 100 at the first connecting portion 22, the lamp 100 further includes a decoration 25. The decoration 25 seals the hollow cylinder at the end of the first connection portion 22 away from the pillar body 21, which not only can prevent substances such as water and dust from entering the pillar body through the hollow cylinder, but also can prevent the user from being scratched by the end when contacting the end of the first connection portion 22. The decoration 25 and the first connection portion 22 may be the same in material and color, thereby ensuring visual uniformity. Alternatively, the decoration 25 may be a decoration member having a design sense, thereby improving the visual sense of beauty of the lamp 100, which is not limited by the present application.

In other embodiments, the end of the first connecting portion 22 away from the pillar body 21 may be provided with a vent hole, so that the decorative member 25 does not need to be additionally provided. Alternatively, a vent hole may be provided at an end portion of the pillar body 21 away from the first connection portion 22, which is not limited in the present application.

In some embodiments, the optical component 1 comprises a hollow 17 extending in the thickness direction Z, and the hollow 17 is arranged in the center of said optical component 1. The upright 2 comprises a second connecting portion 23 extending in the radial direction X. The second connecting portion 23 is disposed in the hollow portion 17 and rotatably connected to the optical module 1. In other words, the optical module 1 can rotate around the second connection portion 23 and forms an angle with the horizontal plane HS. By such arrangement, a user can adjust the inclination of the optical assembly 1, and rotate the optical assembly 1 to be parallel to the horizontal plane HS when light is required to be concentrated on the table top parallel to the horizontal plane HS; when it is necessary to enlarge the irradiation range of light and softly irradiate the light, the optical module 1 is rotated to be inclined to the horizontal plane HS. When the position of the luminaire 100 is limited, for example when the luminaire 100 comprises a power cord 4 and the distance between the luminaire 100 and the socket is already the length of the power cord 4 and cannot be further away from the socket, the light of the optical assembly 1 can be illuminated to a further position by adjusting the angle between the optical assembly 1 and the horizontal plane HS.

In addition, the hollow part 17 can reduce the weight of the optical assembly 1 to a certain extent, so that the weight of the lamp 100 is reduced, the portability of the optical assembly 1 and the lamp 100 is improved, and the lamp 100 is convenient for a user to move. And the hollow part 17 can increase the visual transparency and lightness of the optical component 1, so as to bring better visual experience for users.

Referring to fig. 2, in some embodiments, the stem 2 further comprises a third connecting portion 24 pivotally connected to the socket 3. The third connecting portion 24 is pivoted to the base 3 to adjust the angle between the upright 2 and the horizontal plane HS. Similarly, the third connecting portion 24 is provided to facilitate the user to adjust the light irradiation position of the optical module 1. In the embodiment where the column 2 includes only the third connecting portion 24, the included angle between the column 2 and the optical assembly 1 is fixed, so that the irradiation range of the optical assembly 1 can be adjusted by adjusting the pivot position of the third connecting portion 24, for example, when light is required to be concentrated on a desktop, the position of the column 2 is adjusted to make the column 2 perpendicular to the horizontal plane HS; when light is required to irradiate a position farther away, the position of the upright post 2 is adjusted to enable an included angle to exist between the upright post 2 and the horizontal plane HS.

In the embodiment where the column 2 includes both the second connection portion 23 and the third connection portion 24, the user can simultaneously adjust the angle between the column 2 and the horizontal plane HS and the angle between the optical assembly 1 and the horizontal plane HS, and thus even if the angle between the column 2 and the horizontal plane HS is adjusted by the third connection member, the optical assembly 1 can be adjusted to be parallel to the horizontal plane HS, thereby changing the irradiation position of the optical assembly 1 and maintaining the illumination intensity of the optical assembly 1.

In this embodiment, when the extending axis a of the pillar 2 is perpendicular to the horizontal plane HS (the state shown in fig. 1), since the area occupied by the projection area of the lamp 100 on the horizontal plane HS is small, the lamp 100 can be regarded as the storage state. When the extending axis a of the pillar 2 forms an included angle with the horizontal plane HS (the state shown in fig. 2), the lamp 100 can be regarded as the opened state at this time because the area occupied by the projection area of the lamp 100 on the horizontal plane HS is large. In other words, the user may adjust the lamp 100 to the storage state when the lamp 100 is not needed to be used, and adjust the lamp 100 to the open state when the lamp 100 is needed to be used. Due to the arrangement of the second connection portion 23, the luminaire 100 can adjust the optical assembly 1 to be parallel to the horizontal plane HS in both the open state and the storage state, so that the adjustment of the third connection portion 24 can not affect the brightness and concentration of the illumination desktop of the luminaire 100. Therefore, when the lamp 100 is not needed, the occupation of the lamp 100 on the space can be minimized, the lamp 100 can be conveniently stored, and the cleanliness of the desktop is improved.

In the above embodiments, the interference fit may be between the first connection portion 22 and the pillar body 21, between the second connection portion 23 and the optical assembly 1, and between the third connection portion 24 and the lamp socket 3, so that the lamp 100 may maintain the adjusted position after the user rotates the first connection portion 22 or the second connection portion 23. And a lubricating layer may be provided between the first connecting portion 22 and the pillar body 21, and between the second connecting portion 23 and the optical module 1, so as to reduce friction between parts, provide smooth rotating feel, and facilitate avoiding noise generated by friction between parts during rotation.

Besides, it is also possible that the luminaire 100 comprises the damping member 26. Taking the embodiment shown in fig. 3 as an example, a damping member 26 is disposed between the first connecting portion 22 and the pillar body 21. The damping member 26 can not only avoid rigid friction and rigid collision between the first connecting portion 22 and the column body 21, but also provide a damping hand feeling for the user when the user rotates the first connecting portion 22, improve the rotating hand feeling during rotation, and provide a more comfortable and superior use feeling for the user. In addition, due to the existence of the damping member 26, the friction force between the first connection portion 22 and the damping member 26 and the friction force between the pillar body 21 and the damping member 26 can keep the first connection portion 22 at a position desired by a user after the user rotates the first connection portion 22, and thus, the user is prevented from repeatedly adjusting for many times.

The damping member 26 and the column body 21 are connected by a fastener 27, so that the relative position between the damping member 26 and the column body 21 can be kept unchanged. When the user rotates the first connection portion 22, the damping member 26 and the first connection portion 22 move relatively to each other, so that a damping feeling can be generated. The use of the fastener 27 also facilitates the removal of the damper 26 from the column body 21 and replacement of the damper 26. Indeed, in other embodiments, the damping member 26 may be connected to the first connection portion 22 by a fastener 27, or the damping member 26 may be connected to the first connection portion 22 or the pillar body 21 by bonding or the like, which is not limited in this application.

Similarly, damping members 26 may be disposed between the second connecting portion 23 and the optical assembly 1, and between the third connecting portion 24 and the lamp holder 3, and the damping members 26 may also provide a more comfortable and advanced use experience for the user when the user adjusts the angle between the optical assembly 1 and the horizontal plane HS, which will not be described herein.

It should be noted that, according to actual needs, a person skilled in the art may set the luminaire 100 to include at least one of the first connection portion 22, the second connection portion 23, or the third connection portion 24. For example, the luminaire 100 includes only the first connection portion 22, the second connection portion 23, or the third connection portion 24, or includes the first connection portion 22 and the second connection portion 23, or includes the first connection portion 22 and the third connection portion 24, or includes the first connection portion 22, the second connection portion 23, and the third connection portion 24, and the like, which is not limited in this application.

During the use of the lamp 100, strong light can cause irritation to human eyes, while too dim light can easily cause fatigue to human eyes. With reference to fig. 3 to 6, in order to enable the luminaire 100 to provide a soft light effect for a user, the present application further provides an optical assembly 1 based on the above embodiments. The optical module 1 includes a main body 11, a polarizing lens 12, a dodging lens 13, and a light source 14. The main body 11 includes a side wall 112, an inner wall 111, and an opening 113. Wherein the inner wall 111 and the side wall 112 extend in the thickness direction Z of the main body portion 11, and the opening portion 113 is provided at one side of the main body portion 11 in the thickness direction Z. A cavity 114 is formed between the side wall 112 and the inner wall 111, and the opening 113 communicates with the cavity 114. The polarizing lens 12, the light source 14, and the like of the optical module 1 are disposed in the cavity 114 through the opening portion 113. The polarization lens 12 includes a polarization plane 121 distant from the opening 113 and a light exit plane 122 close to the opening 113. The polarizing plane 121 includes a plurality of saw tooth units 123. The light source 14 is disposed on the inner wall 111, and a light emitting direction of the light source 14 faces the polarization plane 121. Further, the dodging lens 13 is disposed in the opening 113 and closes the cavity 114.

With this arrangement, light emitted from the light source 14 can propagate to the polarization plane 121 of the polarization lens 12, and after the light is reflected by the polarization plane 121, the propagation path of the light is changed and propagates toward the light exit plane 122 (specifically, refer to the dotted arrow representing the propagation path of the light in fig. 4 and 5), so that the light from the light source 14 can exit the optical assembly 1 through the opening portion 113. Moreover, the dodging lens 13 can soften light to a certain extent, and the light reflected by the polarizing lens 12 can only leave the optical assembly 1 through the dodging lens 13 by arranging the dodging lens 13 in the opening 113, so that the light leaving from the opening 113 has relatively uniform brightness. In addition, the cavity 114 is sealed by the dodging lens 13, so that the structure of the optical assembly 1 can be simplified, and the light emitting area of the optical assembly 1 can be reduced by avoiding additional components for sealing the cavity 114.

It should be noted that the polarizing lens 12 referred to in the present application means a structure capable of shifting the propagation path of light. In other words, when light leaves the polarized lens 12 inside the polarized lens 12 or enters the polarized lens 12 outside the polarized lens 12, the traveling path of the light changes.

The dodging lens 13 may be bonded to the body portion 11 to effect sealing of the cavity 114. Alternatively, with particular reference to fig. 3, in some embodiments, the body portion 11 comprises a first snap-in member 115 and the optical assembly 1 comprises a pressure plate 16, and the pressure plate 16 is provided with a second snap-in member 161 cooperating with the first snap-in member 115. The pressing plate 16 is disposed below the light source 14 and on the back side of the light emitting side of the light source 14, so that the arrangement of the pressing plate 16 can avoid affecting the light emitting surface of the optical assembly 1. The pressing plate 16 holds the dodging unit 133 at the position of the opening portion 113, and is connected to the main body portion 11 by the second clamping member 161, thereby achieving sealing of the cavity 114. By providing the pressing plate 16, the entirety of the optical module 1 is made detachable. And by disassembling the pressure plate 16 instead of the dodging lens 13, damage to the dodging lens 13 when mishandling can be avoided, which in turn affects the subsequent use of the optical assembly 1.

In some embodiments, the optical assembly 1 further includes a reflective plate 15 disposed in the cavity 114, and the reflective plate 15 is disposed between the polarizing lens 12 and the main body portion 11 near the polarizing surface 121. In this way, in the process of reflecting light by the polarizing lens 12, light leaving the polarizing lens 12 from the polarizing surface 121 can be reflected by the reflecting plate 15. The reflected light beam passes through the polarizing lens 12 and the dodging lens 13 again and exits the opening 113. By providing the reflective plate 15, the utilization rate of the light source 14 can be improved, so that the light "remaining" in the cavity 114 can also be reflected by the reflective plate 15 as much as possible and leave the optical assembly 1 through the opening portion 113.

Wherein the light sources 14 may be a continuous strip of light continuously arranged on the side of the sidewall 112 facing the cavity 114, thereby enabling the light sources 14 of the optical component 1 to emit continuous and uniform light. Or in other embodiments, the light source 14 may be a plurality of light emitting diodes spaced apart on a side of the sidewall 112 facing the cavity 114. The skilled person can select the parameters of the leds and set the density of the leds such that the light source 14 can also emit approximately continuous light. And by providing a plurality of light emitting diodes, only the damaged light emitting diode can be replaced when a single light emitting diode is damaged, without the need to replace the light source 14 as a whole, so that cost can be saved. In addition, when the light emitting diode is arranged, the light emitting diode can be set as a standard commercial light emitting diode without customizing the light source 14, and the later maintenance and repair cost can be further reduced.

Referring to fig. 3 to 5, light emitted from the light source 14 enters the polarization lens 12 and is irradiated to the polarization plane 121, and is reflected to change the propagation direction. In some embodiments, the sawtooth unit 123 includes a first surface 1231, a second surface 1232, and a base 1233 connecting the first surface 1231 and the second surface 1232. The first surface 1231 extends from the bottom edge 1233 toward the light source 14 and away from the light emitting surface 122. The second surface 1232 extends from the bottom edge 1233 away from the light source 14 and away from the light-emitting surface 122. Wherein the first surface 1231 extends a distance greater than the second surface 1232. In this way, the thickness of the polarized lens 12 gradually decreases along the propagation direction of the light source 14, and the distance between the polarization plane 121 and the light exit plane 122 gradually decreases. With this arrangement, the first surface 1231 of the sawtooth unit 123 located at any position of the polarization plane 121 can reflect the light emitted from the light source 14, thereby improving the reflection efficiency of the polarizing lens 12 for the light.

Referring to fig. 4, in some embodiments, the first surface 1231 may be configured as a plane, and two parallel light rays are reflected to remain parallel after being irradiated to the same first surface 1231. Thus, the arrangement of the first surface 1231 as a plane enables better control of the direction of the light. Referring to fig. 5, in other embodiments, the first surface 1231 is configured as an arc-shaped surface facing the light emitting surface 122. Parallel light rays are projected onto the arc-shaped surface, and the reflected light rays become scattered light rays, so that the arc-shaped first surface 1231 can reflect scattered and soft light rays. In addition, in other embodiments, a part of the first surface 1231 on the polarization plane 121 may be arranged as a plane, and the rest of the first surface 1231 may be arranged as an arc-shaped plane, which is not limited in the present application.

In the embodiment where the first surface 1231 is a plane, an included angle between the first surface 1231 and the light emitting surface 122 is a polarization included angle α. In some embodiments, the included polarization angles α of the plurality of sawtooth units 123 may be constant under other conditions, such as 25 ° or more and 45 ° or less when the polarizing lens 12 is made of high boron glass, and 15 ° or more and 25 ° or less when the polarizing lens is made of single soda-lime-silica glass. In other embodiments, the included angle α may be gradually increased in a direction from the light source 14 to the polarized lens 12 to adapt to a situation that the light flux gradually decreases in the direction. For example, the included angle α of polarization close to the light source 14 may be set to 0 ° or more and 5 ° or less, and the included angle α of polarization far from the light source 14 may be set to 25 ° or more and 45 ° or less.

In the embodiment that the first surface 1231 is an arc-shaped surface, an included angle between a tangent of the first surface 1231 and the light emitting surface 122 is a polarization included angle α. In this embodiment, the included polarization angle α is different at different positions on the same first surface 1231, but the selected value range of the included polarization angle α is the same as that of the embodiment in which the first surface 1231 is a plane. For example, on the same first surface 1231, the maximum polarization angle α is selected to be, for example, 45 °, and the minimum polarization angle α is selected to be, for example, 25 °, and the like, which is not limited by the present application.

It can be understood that since the second surface 1232 and the bottom edge 1233 are difficult to reflect light toward the light-emitting surface 122, the light reflected by the polarized lens 12 actually exhibits the effect of multiple concentric apertures. And the longer the second surface 1232 extends, the larger the distance between the concentric apertures, the more difficult it is to achieve light uniformity. And the shorter the distance that the second surface 1232 extends, the greater the degree to which the thickness of the polarizing lens 12 becomes smaller along the traveling direction of the light source 14. One skilled in the art can control the angle between the first surface 1231 and the second surface 1232, or the extending distance of the second surface 1232, to control the degree of thickness variation of the polarized lens 12 and the distance between adjacent apertures.

In some embodiments, the saw tooth units 123 may be spaced apart from each other, that is, there may be a flat portion between the saw tooth units 123 for connection, so that the saw tooth units 123 can be disposed at positions where reflection is required. In other embodiments, a plurality of saw tooth units 123 may be connected to each other. The sawtooth units 123 distributed continuously enable the light to be reflected at any position of the polarizing surface 121, so that the uniformity of the light leaving the polarizing lens 12 from the light exit surface 122 can be improved, and the phenomenon of uneven light exiting the light exit surface 122 is effectively avoided.

The light ray is reflected by the polarizing lens 12, exits the polarizing lens 12 from the light exit surface 122, and then enters the dodging lens 13. The dodging lens 13 may be any lens that achieves light uniformity. In some embodiments, the dodging lens 13 may also be composed of a plurality of plano-concave lens cells, wherein the concave sides of the plano-concave lens cells face the polarizing lens 12. The focal length of the plano-concave lens unit is negative, so that light beams can be diverged, and therefore after the light beams pass through the plano-concave lens unit, the light beams can be dispersed and softened at the edge of the diaphragm.

Referring to fig. 6, in other embodiments, the dodging lens 13 includes a fly-eye lens including a planar side 131 and a concave-convex side 132, the planar side 131 being disposed adjacent to the polarizing lens 12. Fly-eye lens arrays are two-dimensional arrays of individual optical elements that convert a non-uniform irradiance distribution in an illumination plane to a uniform distribution. Since the sawtooth unit 123 includes the second surface 1232 and the bottom side 1233, which are difficult to reflect light toward the light emitting surface 122, light is dark at a position of the light emitting surface 122 corresponding to the second surface 1232 and the bottom side 1233. In other words, the light reflected by the polarized lens 12 has the effect of a plurality of concentric apertures. Consequently through setting up fly eye lens, can go on softly a plurality of concentric rings, carry out edge scatter and soft focus with each ring for the edge connection between the adjacent ring, thereby realize that optical component 1's light-emitting is even. And the setting of fly-eye lens can improve the illuminance uniformity of the light emitted by the optical component 1 on the plane, and further improve the sense organ comfort when the user uses the device.

In some embodiments, the fly-eye lens includes a plurality of dodging units 133. The plurality of dodging units 133 have the same size and cover the fly-eye lens. In other words, the dodging unit 133 having the same size is disposed at each of the fly-eye lenses. By this arrangement, the dodging effect is the same at each position of the fly-eye lens, and therefore, it is not necessary to perform the alignment installation for different dodging units 133 when assembling the optical assembly 1.

In other embodiments, the light uniformizing unit 133 may also be disposed at the fly-eye lens at intervals corresponding to the spaced sawtooth units 123, which is not limited in this application. Alternatively, the sizes of the dodging units 133 at different positions may be different. For example, the dodging units 133 on the same aperture are the same in size, but the dodging units 133 on adjacent apertures are different in size, so that the dodging effect can be adjusted according to the actual situation of light.

Regarding the size of the dodging unit 133, the smaller the ratio of the height D of the dodging unit 133 to the width W of the dodging unit 133, the flatter the dodging unit 133 is represented; the larger the ratio of the height D of the light unifying unit 133 to the width W of the light unifying unit 133, the more convex the light unifying unit 133 is. When the light enters the light uniformizing unit 133, the light with a smaller included angle with the side of the light uniformizing unit 133 facing the concave-convex side 132 can leave the light uniformizing unit 133 through the concave-convex side 132 without changing the light emitting direction, and the light with an excessively large included angle is reflected back into the cavity 114. Therefore, the flatter the dodging unit 133, the more light can leave the dodging unit 133, but the dodging effect is not ideal. And the more convex the dodging unit 133, the less light can leave the dodging unit 133, and thus the loss of light flux is high. After many experiments, in some embodiments, the ratio of the height D of the light unifying unit 133 to the width W of the light unifying unit 133 is greater than or equal to 0.2 and less than or equal to 0.35, which is a good uniformity of light and a low loss of light flux.

The specific embodiments described herein are merely illustrative of the spirit of the application. Those skilled in the art to which the invention relates may effect numerous modifications, additions or substitutions to the specific embodiments described herein, without departing from the spirit or scope of the invention as defined in the accompanying claims.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

Claims (13)

1. An optical assembly, comprising:

a main body part including a side wall, an inner wall, and an opening; the inner wall and the side wall extend in a thickness direction of the body portion; the opening portion is provided at one side of the main body portion in the thickness direction; a cavity is formed between the side wall and the inner wall, and the opening part is communicated with the cavity;

the polarized lens is arranged in the cavity; the polarized lens comprises a polarized surface far away from the opening part and a light-emitting surface close to the opening part; the polarizing plane comprises a plurality of sawtooth units;

the dodging lens is arranged at the opening part and seals the cavity;

the light source is arranged on the inner wall, and the light emitting direction of the light source faces the polarizing surface.

2. The optical assembly of claim 1, wherein the sawtooth unit comprises a first surface, a second surface, and a base connecting the first surface and the second surface; the first surface extends from the bottom edge towards the light source and is far away from the light emitting surface; the second surface extends from the bottom edge away from the light source and away from the light-emitting surface; the first surface extends a distance greater than the second surface.

3. An optical assembly according to claim 2, wherein the first surface is provided as a plane; and/or the first surface is arranged to be an arc-shaped surface, and the arc-shaped surface faces the light emitting surface.

4. The optical assembly of claim 1, further comprising:

a reflection plate disposed in the cavity and disposed between the polarized lens and the main body portion near the polarization plane.

5. The optical assembly of claim 1, wherein the dodging lens comprises a fly-eye lens comprising a planar side and a concave-convex side, the planar side disposed proximate to the polarizing lens.

6. The optical assembly of claim 5, wherein the fly-eye lens comprises a plurality of dodging units; the light homogenizing units are the same in size and cover the fly eye lens.

7. An optical assembly according to claim 6, wherein the ratio of the height of the light unifying unit to the width of the light unifying unit is greater than or equal to 0.2 and less than or equal to 0.35.

8. The optical assembly according to claim 1, wherein the optical assembly includes a hollow portion extending in the thickness direction, the hollow portion being disposed at a center of the optical assembly.

9. A luminaire comprising an optical assembly according to any one of claims 1 to 8.

10. A light fixture as recited in claim 9, wherein the light fixture further comprises a base and a post; the post connects the lamp holder and the optical assembly.

11. The light fixture of claim 10, wherein the post comprises a post body and a first connection portion rotatably connected to the post body; the first connecting portion is rotatable about an extension axis of the column body; the upright post body is connected with the lamp holder.

12. A light fixture as recited in claim 10, wherein the optical assembly comprises a hollow portion extending in the thickness direction, the hollow portion being disposed in a center of the optical assembly; the pillar includes a second connecting portion extending perpendicular to the thickness direction; the second connecting part is arranged in the hollow part and is rotatably connected with the optical component.

13. The light fixture of claim 10, wherein the post comprises a third connection portion; the third connecting part is pivoted with the lamp holder.

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