CN218565287U - Optical device and lighting device - Google Patents

Abstract

The present application relates generally to an optical device and an illumination device, comprising: a housing including a housing, a light emitting element, a light transmitting member, and a light shifting element; the shell comprises an upper shell and a lower shell, the upper shell and the lower shell are connected to form an accommodating space, the accommodating space forms an opening on the upper shell, and the accommodating space is provided with a central axis passing through the opening; the light emitting element is used for emitting first light, arranged in the accommodating space and deviated from the central axis; the light-transmitting part is arranged at the opening; the light shifting element is used for shifting the first light towards the central axis and changing the traveling direction of the shifted first light to be directed to the light-transmitting part. The casing adopts the structure that last casing and lower casing meet in this application, can install light emitting component and corresponding optical element before last casing meets with lower casing and forms the casing, and the optical device's of being convenient for installation improves the packaging efficiency.

Description

Optical device and lighting device

Technical Field

The present disclosure relates to lighting devices, and particularly to an optical device and a lighting device.

Background

Currently, in the lighting field, light-Emitting diodes (LEDs) can save power by 50% to 70% compared to conventional incandescent lamps and energy-saving lamps, and therefore, LED lighting is an efficient energy-saving Light source in the solid-state lighting field, and gradually replaces the conventional lighting technology. However, with the demand of people on the fields of ultra-high power and ultra-high brightness illumination, such as aerospace, projection display, automobile headlights and other illumination fields, a new generation of laser illumination technology is in force. Compared with the LED lighting technology, the laser lighting technology has the advantages of high power, high brightness, intelligent control and the like, and has wide market prospect.

The known laser light source generally comprises a laser element and an optical system matched with the laser element, and the laser element and the optical system are packaged in a shell. In many scenarios, the laser element and the optical system are arranged coaxially, i.e., the laser element and the optical system are arranged on the same axis within the housing.

To the inventors' knowledge, the laser elements may be arranged offset from the axis described above. Thus, an additional optical element is required to guide the laser beam emitted from the laser element to finally travel along the desired optical path. This makes the optical system more complex and difficult to install.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present disclosure provides an optical device and an illumination device, which can solve the above technical problems.

In order to solve the above problem, a first technical solution provided in the embodiments of the present application is: an optical device is provided, which comprises a shell, a light-emitting element, a light-transmitting component and a light shifting component; the shell comprises an upper shell and a lower shell, the upper shell and the lower shell are connected to form an accommodating space, and the accommodating space forms an opening on the upper shell, wherein the accommodating space is provided with a central axis, and the central axis extends from the lower shell to the upper shell and passes through the opening in the extending direction; the light emitting element is used for emitting first light, arranged in the accommodating space and deviated from the central axis; the light-transmitting part is arranged at the opening; the light shifting element is configured to shift the first light toward the central axis and change a traveling direction of the shifted first light to be directed toward the light-transmitting member.

Wherein the light emitting element is in contact with an inner wall surface of a bottom of the lower case.

Wherein the light shifting element comprises a first reflective element arranged to reflect the first light from the light emitting element towards the direction of the central axis and a second reflective element; the second reflecting element is disposed to reflect the first light from the first reflecting element toward the light transmitting member.

Wherein the optical device further comprises a wavelength converting element arranged to receive the first light from the light shifting element and to convert at least part of the first light into a second light of longer wavelength and to emit the second light towards the light transmitting member.

The light emitting surface of the wavelength conversion element is provided with a diaphragm, and the diaphragm comprises a light emitting part and a light shielding part surrounding the light emitting part.

Wherein a converging element for converging the first light from the light shifting element to a predetermined area of the wavelength conversion element is disposed between the wavelength conversion element and the light shifting element, wherein the predetermined area is located within an area of the wavelength conversion element defined on the wavelength conversion element by the light exit portion.

Wherein a first diffusing element is disposed between the wavelength converting element and the converging element.

And the light emitting side of the light-transmitting component is also provided with a second diffusion element.

Wherein the optical device further comprises a first bracket installed in the upper case, and the wavelength conversion element is fixed on the first bracket.

Wherein the optical device further comprises a first support mounted within the upper housing, at least one of the diaphragm, the converging element and the first diffusing element being fixed to the first support.

Wherein the optical device further comprises a second support mounted within the upper housing, the light shifting element being fixed to the second support.

Wherein the optical device further comprises a second support mounted within the upper housing, the converging element being fixed to the second support.

The optical device further comprises an aspheric lens and a third support, the aspheric lens is arranged close to the light emitting surface of the light emitting element, the aspheric lens is fixed on the third support, and the third support is arranged to be adjustable in position in a plane perpendicular to the first light.

In order to solve the above technical problem, a second technical solution provided in the embodiments of the present application is: there is provided an optical device including: a housing including an upper housing and a lower housing that are engaged with each other, an accommodating space being formed between the upper housing and the lower housing and forming an opening on the upper housing, wherein the accommodating space has a central axis that extends from the lower housing in a direction toward the upper housing and passes through the opening in an extending direction; a first light emitting element and a second light emitting element which are both used for emitting first light, wherein the first light emitting element and the second light emitting element are arranged in the accommodating space, and the first light emitting element and the second light emitting element are oppositely arranged on two sides of the central axis; a light-transmitting member disposed at the opening; and a first light shift element and a second light shift element for shifting the first light from the first light shift element and the second light shift element toward the central axis and changing a traveling direction of the shifted first light to be directed toward the light-transmitting member.

In order to solve the above technical problem, a third technical solution provided in the embodiments of the present application is: there is provided a lighting device comprising an optical device as claimed in any one of the above.

The beneficial effect of this application is: in the optical device provided by the application, the shell adopts a structure that the upper shell and the lower shell are connected, so that the light-emitting element and the corresponding optical element can be installed before the upper shell and the lower shell are connected to form the shell, the optical device is convenient to install, and the assembly efficiency is improved.

Drawings

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

FIG. 1 is a schematic structural diagram of a first embodiment of an optical device provided herein;

FIG. 2 is a schematic diagram of a second embodiment of an optical device provided herein;

FIG. 3 is a schematic diagram of a third embodiment of an optical device provided herein;

fig. 4 is a schematic structural diagram of an embodiment of the lighting device provided in the present application.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be noted that the following examples are only illustrative of the present application, and do not limit the scope of the present application. Likewise, the following examples are only some examples and not all examples of the present application, and all other examples obtained by a person of ordinary skill in the art without any inventive work are within the scope of the present application.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

First, an optical device 100 is provided in the embodiment of the present application, as shown in fig. 1, fig. 1 is a schematic structural diagram of a first embodiment of the optical device provided in the present application. The optical device 100 provided by the present application includes a housing 10, a light emitting element 20, a light transmitting member 30, and a light shifting element 40.

The housing 10 includes an upper housing 110 and a lower housing 120, the upper housing 110 and the lower housing 120 are connected to form an accommodating space, and the accommodating space forms an opening on the upper housing 110, wherein the accommodating space has a central axis, and the central axis extends from the lower housing 120 to the upper housing 110 and passes through the opening in the extending direction.

The light emitting element 20 is used for emitting the first light, and the light emitting element 20 is disposed in the accommodating space and is disposed to deviate from the central axis. It is understood that the optical axis of the first light is offset from the central axis, that is, the light emitting element 20 is not disposed on the central axis of the accommodating space, and the light emitting element 20 may be disposed on both sides of the central axis of the accommodating space.

In some embodiments, the central axis is collinear with the axis of the housing 10. This is not essential, however, for example in some embodiments the central axis is offset a distance from the axis of the housing 10.

The light-transmitting member 30 is disposed at the opening of the upper case 110, and the light shifting element 40 serves to shift the first light toward the central axis and change the traveling direction of the shifted first light to be directed toward the light-transmitting member 30. Specifically, the light emitting element 20, the light shifting element 40, and the light transmissive member 30 are sequentially disposed in the accommodating space along the emitting direction of the first light, and the first light emitted from the light emitting element 20 is shifted to the central axis from the original emitting direction after passing through the light shifting element 40, and is directed to the light transmissive member 30. It is understood that the first light emitted from the light emitting element 20 has an angle offset from the central axis, and after passing through the light shifting element 40, the traveling direction of the first light is directed to the light transmissive member 30 and is parallel to the central axis.

The light emitting elements 20 may be a plurality of light emitting elements 20, and the light emitting elements 20 are respectively disposed on two sides of the central axis to increase the power of the optical device 100, so as to increase the luminous flux of the optical device 100. At this time, the number and positions of the light shifting elements 40 should be arranged corresponding to the light emitting elements 20 to ensure that the first light emitted from each light emitting element 20 can change the traveling direction through the light shifting elements 40 and be directed to the light transmitting member 30.

In the present embodiment, the light emitting element 20 is disposed off the central axis, and the first light emitted from the light emitting element 20 is guided by the light shifting element 40, changing the traveling direction of the first light so as to be directed toward the light-transmitting member 30; the housing 10 has a structure in which the upper housing 110 and the lower housing 120 are connected, and the light emitting element 20 and the corresponding light shifting element 40 can be installed before the upper housing 110 and the lower housing 120 are connected to form the housing 10, thereby facilitating the installation of the optical device 100 and improving the assembly efficiency.

Alternatively, the light emitting element 20 is in contact with an inner wall surface of the bottom of the lower case 120.

Specifically, the light emitting element 20 is disposed in the accommodating space formed by the connection of the upper housing 110 and the lower housing 120, and contacts with the inner wall surface of the bottom of the lower housing 120, so that the light emitting element 20 contacts with the lower housing 120 for heat dissipation.

In the related art, the light emitting element 20 can only extend into the accommodating space of the housing 10 from one end of the housing 10 along the axial direction, under this condition, the light emitting element 20 can only contact with the side wall inside the housing 10, the contact surface is small, and the obtainable heat dissipation capability is limited, therefore, in this embodiment, the light emitting element 20 contacts with the inner wall surface of the bottom of the lower housing 120, so as to obtain a larger heat dissipation area, which is beneficial to improving the heat dissipation performance, and prevent the light emitting efficiency from being affected by the heat concentration when the light emitting element 20 emits the light source, thereby further improving the light emitting efficiency of the optical device 100.

Optionally, the light shifting element 40 comprises a first reflective element 410 and a second reflective element 420, the first reflective element 410 being arranged to reflect the first light from the light emitting element 20 towards the direction of the central axis; the second reflecting member 420 is disposed to reflect the first light from the first reflecting member 410 toward the direction of the light-transmitting member 30.

Specifically, since the light emitting device 20 is disposed at one side of the central axis in the accommodating space, the first reflecting device 410 and the second reflecting device 420 are located at one side of the light emitting device 20, the first reflecting device 410 is configured to receive the first light emitted from the light emitting device 20 and reflect the first light to the second reflecting device 420, and the second reflecting device 420 is configured to receive the first light from the first reflecting device 410 and reflect the first light to the transparent component 30. The first light emitted from the light emitting element 20 passes through the first reflecting element 410 and the second reflecting element 420, and then the traveling direction thereof is changed and directed to the light transmitting member 30.

In an alternative embodiment, the first reflective element 410 and the second reflective element 420 are not limited to mirrors, and the reflective surfaces of the first reflective element 410 and the second reflective element 420 are parallel or approximately parallel.

Optionally, the optical device 100 further comprises a wavelength converting element 50 arranged to receive the first light from the light shifting element 40 and to convert at least part of the first light into a second light of longer wavelength and to emit the second light towards the light transmissive member 30.

Specifically, the wavelength conversion element 50 includes, but is not limited to, a phosphor sheet, the wavelength conversion element 50 is disposed between the light shift element 40 and the light transmissive member 30, and is configured to receive the first light from the light shift element 40, convert at least a portion of the first light into a second light having a longer wavelength through the wavelength conversion element 50, and emit the converted second light toward the light transmissive member 30 by the wavelength conversion element 50.

Optionally, a diaphragm 510 is disposed on the light exit surface of the wavelength conversion element 50, and the diaphragm 510 includes a light exit portion and a light shielding portion surrounding the light exit portion. Part of the second light emitted from the wavelength conversion element 50 is emitted to the transparent member 30 through the light-emitting portion of the aperture 510, and the other part of the second light is restricted by the light-blocking portion of the aperture 510.

The diaphragm 510 is disposed on the light emitting surface of the wavelength conversion element 50, so that the light emitting point of the second light formed by the stimulated emission on the wavelength conversion element 50 can emit light through the light emitting portion of the diaphragm 510, and the stray light emitted from the periphery of the light emitting point is shielded, thereby improving the spot quality of the illumination light, and further improving the light emitting effect of the optical device 100.

Optionally, a converging element 60 is disposed between the wavelength converting element 50 and the light shifting element 40, the converging element 60 being configured to converge the first light from the light shifting element 40 to a predetermined area of the wavelength converting element 50, wherein the predetermined area is located within an area of the wavelength converting element 50 defined by the light exiting portion on the wavelength converting element 50. That is, the predetermined region is a region of the wavelength conversion element 50 that can receive the first light and perform wavelength conversion.

The converging element 60 includes, but is not limited to, a condenser, and the converging element 60 is disposed in the accommodating space between the wavelength conversion element 50 and the light shifting element 40, and is located on the central axis, and is used for converging the first light reflected by the light shifting element 40 to a preset area of the wavelength conversion element 50, so that a light spot generated by the optical device 100 is easier to center, and the light emitting effect of the optical device 100 is improved.

Optionally, a first diffusing element 520 is disposed between the wavelength converting element 50 and the converging element 60, the first diffusing element 520 is configured to receive the first light emitted by the converging element 60, the first light is refracted and diffused multiple times when passing through the first diffusing element 520, and a light spot of the first light incident on the wavelength converting element 50 after being diffused by the first diffusing element 520 is more uniform, which is beneficial to avoiding degradation of the wavelength converting element 50 or over-high temperature of a local area of the wavelength converting element 50 caused by over-high power density of the local area of the light spot.

Optionally, a second diffusing element 530 is further disposed on the light exit side of the light-transmitting component 30, the second diffusing element 530 is configured to receive the second light emitted from the light-transmitting component 30, the second light is refracted and diffused for multiple times when passing through the second diffusing element 530, and the second light is diffused after passing through the second diffusing element 530, so as to scatter the light beam of the second light, achieve an anti-glare or soft light effect, and improve the visual effect of the light exit of the optical device 100. The first diffusion element 520 and the second diffusion element 530 include but are not limited to a light diffuser, and the first diffusion element 520 and the second diffusion element 530 may be the same diffusion element or diffusion elements with different specifications and models, which are not limited herein.

Alternatively, as shown in fig. 2, fig. 2 is a schematic structural diagram of a second embodiment of the optical device provided in the present application. The optical device 100 further includes a first bracket 70, the first bracket 70 being mounted within the upper housing 110, the wavelength converting element 50 being fixed to the first bracket 70.

Specifically, in one embodiment, the upper case 110 is provided with a first bracket 70, the first bracket 70 is used for mounting the wavelength conversion element 50, the first bracket 70 is provided with an opening, and the light-transmitting member 30 is fixed to the first bracket 70 through the opening. Therefore, by fixing the wavelength conversion element 50 and/or the light-transmissive member 30 to the upper housing 110 through the first bracket 70, the modular installation of the optical device 100 may be facilitated, facilitating mass production.

Alternatively, as shown in fig. 3, fig. 3 is a schematic structural diagram of a third embodiment of the optical device provided in the present application. The optical apparatus 100 further includes a first support 70, the first support 70 being mounted within the upper housing 110, at least one of the diaphragm 510, the converging element 60 and the first diverging element 520 being fixed to the first support 70.

Specifically, in another embodiment, the upper housing 110 is provided with a first bracket 70, and the first bracket 70 is used for mounting at least one of the diaphragm 510, the converging element 60 and the first diffusing element 520. For example, the second diffusing element 530, the transparent member 30, the aperture 510, the wavelength conversion element 50, the first diffusing element 520, and the condensing element 60 may be sequentially disposed on the central axis of the first holder 70 in the opposite direction to the emission direction of the second light; alternatively, the second diffusion element 530, the transparent member 30, the stop 510, the wavelength conversion element 50, and the first diffusion element 520 may be disposed in this order on the central axis of the first holder 70 in the opposite direction to the emission direction of the second light; at least one of the diaphragm 510, the converging element 60, and the first diffusing element 520 may be further fixed to the first support 70, which is not particularly limited herein.

In this embodiment, the optical component disposed on the central axis of the accommodating space is fixed on the first bracket 70, so that the optical device 100 is conveniently installed in a modularized manner, the installation process is simplified, and the mass production is facilitated.

Optionally, the optical device 100 further comprises a second bracket 80, the second bracket 80 being mounted in the upper housing 110, the light shifting element 40 being fixed to the second bracket 80.

Specifically, the second bracket 80 is disposed in the upper housing 110 and is used for fixing the offset angle of the light shifting element 40, so as to ensure that the first light emitted from the light emitting element 20 can change the traveling direction and be directed to the light transmitting member 30 under the offset action of the light shifting element 40, thereby facilitating the modular installation of the optical device 100.

Optionally, the optical device 100 further comprises a second bracket 80, the second bracket 80 being mounted within the upper housing 110, the converging element 60 being fixed to the second bracket 80.

Specifically, in the present embodiment, the converging element 60 may be mounted on the second bracket 80, and the converging element 60 may be formed by forming a through hole on the second bracket 80, through which a central axis of the accommodating space passes in the extending direction, so that the converging element 60 is located on the central axis of the accommodating space, and it is ensured that the first light emitted from the converging element 60 can converge and enter the wavelength conversion element 50 along the same traveling path.

Alternatively, in other embodiments, both the converging element 60 and the light shifting element 40 may be mounted on the second support 80 to fix the relative positions of the light shifting element 40 and the converging element 60, so as to ensure that the first light emitted from the light emitting element 20 can change the traveling direction and be directed to the light transmitting member 30 under the shifting action of the light shifting element 40.

Optionally, the optical device 100 further includes an aspheric lens 230 and a third bracket 90, the aspheric lens 230 is disposed adjacent to the light emitting surface of the light emitting element 20, the aspheric lens 230 is fixed on the third bracket 90, and the third bracket 90 is disposed to be adjustable in position in a plane perpendicular to the first light.

Specifically, the third bracket 90 is disposed on the light emitting element 20 of the lower housing 120, the aspheric lens 230 is fixed on the third bracket 90 and disposed adjacent to the light emitting surface of the light emitting element 20, and the position of the third bracket 90 in the plane perpendicular to the first light is adjustable, so that the aspheric lens 230 can be adjusted in the plane direction relative to the light emitting element 20, and the first light emitted from the light emitting element 20 can be better converged on the light transmitting member 30 through the light deflection element 40, thereby achieving the adjustment of the light spot, and further improving the light emitting effect of the optical device 100.

The embodiment of the present application further provides an optical device 100, where the optical device 100 includes a housing 10, a first light emitting element 210, a second light emitting element 220, a light transmitting member 30, a first light shifting element 430, and a second light shifting element 440.

The housing 10 includes an upper housing 110 and a lower housing 120, the upper housing 110 and the lower housing 120 are engaged with each other, an accommodating space is formed between the upper housing 110 and the lower housing 120, and the accommodating space forms an opening on the upper housing 110, wherein the accommodating space has a central axis passing through the opening.

The first light emitting element 210 and the second light emitting element 220 are both used for emitting the first light, and the first light emitting element 210 and the second light emitting element 220 are disposed in the accommodating space, wherein the accommodating space has a central axis, and the central axis extends from the lower housing 120 to the upper housing 110 and passes through the opening in the extending direction; the light-transmitting member 30 is disposed at the opening; the first and second light shifting elements 430 and 440 serve to shift the first light from the first and second light shifting elements 430 and 440 toward the central axis and change the traveling direction of the shifted first light to be directed toward the light-transmitting member 30.

Specifically, the light emitting element 20 includes at least a first light emitting element 210 and a second light emitting element 220, and the first light emitting element 210 and the second light emitting element 220 are respectively disposed on two sides of the central axis and are symmetrical with respect to the central axis. The first light emitted from the first light emitting element 210 and the second light emitting element 220 respectively passes through the first light shifting element 430 and the second light shifting element 440.

The first light shifting element 430 is disposed at a position corresponding to the first light emitting element 210, the second light shifting element 440 is disposed at a position corresponding to the second light emitting element 220, and the first light shifting element 430 and the second light shifting element 440 are disposed at both sides of the central axis and are symmetrical with respect to the central axis. The first light shifting element 430 includes a first reflective element 410 and a second reflective element 420, the first reflective element 410 and the second reflective element 420 shift the first light emitted from the first light emitting element 210 toward the central axis, and the first light is shifted and directed toward the light transmitting member 30. Accordingly, the second light shifting element 440 includes a third reflective element 450 and a fourth reflective element 460, and the third reflective element 450 and the fourth reflective element 460 are similar to the first reflective element 410 and the second reflective element 420, and are not described herein again.

In this embodiment, the optical device 100 includes the first light emitting element 210 and the second light emitting element 220, the first light emitted from the first light emitting element 210 is shifted by the first light shifting element 430 and directed to the light transmitting member 30, the first light emitted from the second light emitting element 220 is shifted by the second light shifting element 440 and directed to the light transmitting member 30, and the luminous fluxes emitted from the plurality of light emitting elements 20 are increased, so that the optical power of the optical device 100 is improved, and the luminance is improved.

The embodiment of the present application further provides a lighting device 200, as shown in fig. 4, fig. 4 is a schematic structural diagram of an embodiment of the lighting device provided in the present application. The illumination device 200 comprises the optical device 100 as described in any of the embodiments above. It should be noted that the illumination device 200 includes all the technical features of the optical device 100 described in any of the above embodiments, and can include all the technical effects that can be achieved by the optical device 100 described in any of the above embodiments, and in order to avoid repetition, the detailed description is omitted here.

It should be noted that the optical device 100 and the illumination device 200 of the present embodiment may be applied to the field of illumination or projection, such as but not limited to flashlights, car lights, and light beam lamps. Such as rear mount lamps, including but not limited to, worklights, spot lights, and front fog lights.

The scheme of the present application is further illustrated by the following examples.

Example 1:

the optical device 100 includes: the light source device includes a lower case 120, a light emitting element 20, a wavelength conversion element 50, a third support 90, an aspherical lens 230, a first diffusing element 520, a light transmitting member 30, a diaphragm 510, an upper case 110, a condensing element 60, a light shifting element 40, a second support 80, and a second diffusing element 530.

As shown in fig. 1, the light emitting element 20, the third holder 90 and the aspherical lens 230 are assembled on the lower case 120, the light shifting element 40 and the condensing element 60 are assembled on the second holder 80, and the first diffusing element 520, the wavelength converting element 50, the stop 510 and the light transmitting member 30, the second diffusing element 530 are fixed to the upper case 110.

Example 2:

the optical device 100 includes: the light source device includes a lower case 120, a light emitting element 20, a wavelength conversion element 50, a third support 90, an aspherical lens 230, a first diffusing element 520, a light transmitting member 30, a diaphragm 510, an upper case 110, a condensing element 60, a light shifting element 40, a first support 70, and a second diffusing element 530.

As shown in fig. 2, the light emitting element 20, the third holder 90 and the aspherical lens 230 are assembled on the lower housing 120, and the light shifting element 40 and the condensing element 60 are directly fixed to the upper housing 110, the first diffusing element 520, the wavelength converting element 50, the stop 510 and the light transmitting member 30, and the second diffusing element 530 are sequentially fixed to the first holder 70.

Example 3:

as shown in fig. 3, the optical apparatus 100 includes: the light source device includes a lower case 120, a light emitting element 20, a wavelength conversion element 50, a third support 90, an aspherical lens 230, a first diffusing element 520, a transparent member 30, an aperture 510, an upper case 110, a condensing element 60, a light shifting element 40, a first support 70, and a second diffusing element 530.

The light emitting element 20, the third holder 90 and the aspherical lens 230 are assembled on the lower case 120, the light shifting element 40 is directly fixed to the upper case 110, the condensing element 60 is fixed to the first holder 70, the first diffusing element 520, the wavelength converting element 50, the diaphragm 510, and the light transmitting member 30 and the second diffusing element 530 are sequentially fixed to the first holder 70.

It should be noted that, various optional implementations described in the embodiments of the present application may be implemented in combination with each other or implemented separately, and the embodiments of the present application are not limited thereto.

In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present application and for simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations and specific orientation configurations and operations and therefore, should not be taken as limiting the present application-furthermore, "first", "second", and the like are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicit in indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

Throughout the description of the present application, it should be noted that, unless otherwise specifically stated or limited, the terms "mounted" and "connected" and the like are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be connected directly or indirectly through an intermediate medium, or the two elements may be connected internally. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The embodiments described above are capable of other different forms and embodiments than those described with reference to the drawings and without departing from the principles of the present application, which is therefore not to be construed as limiting the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. In the drawings, the size and relative sizes of components may be exaggerated for clarity. The terms "comprises" and/or "comprising," when used in this specification, are taken to specify the presence of stated features, integers, components, and/or components, but do not preclude the presence or addition of one or more other features, integers, components, and/or groups thereof. Unless otherwise indicated, numerical ranges include the upper and lower limits of the ranges and any subranges therebetween.

The above description is only a part of the embodiments of the present application, and not intended to limit the scope of the present application, and all equivalent devices or equivalent processes performed by the content of the present application and the attached drawings, or directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims (15)

1. An optical device, comprising:

the shell comprises an upper shell and a lower shell, the upper shell and the lower shell are connected to form an accommodating space, and the accommodating space forms an opening on the upper shell, wherein the accommodating space is provided with a central axis, and the central axis extends from the lower shell to the upper shell and passes through the opening in the extending direction;

a light emitting element for emitting a first light, the light emitting element being disposed in the accommodating space and being offset from the central axis;

a light-transmitting member disposed at the opening; and

a light shifting element for shifting the first light toward the central axis and changing a traveling direction of the shifted first light to be directed toward the light-transmitting member.

2. The optical device according to claim 1, wherein the light emitting element is in contact with an inner wall surface of a bottom portion of the lower housing.

3. The optical device according to claim 1, wherein the light shifting element comprises:

a first reflecting element provided to reflect the first light from the light emitting element toward the direction of the central axis; and

a second reflective element disposed to reflect the first light from the first reflective element toward the light-transmitting member.

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

a wavelength converting element arranged to receive the first light from the light shifting element and to convert at least part of the first light into a second light of longer wavelength and to emit the second light towards the light transmissive member.

5. The optical device according to claim 4, wherein a stop is disposed on the light-emitting surface of the wavelength conversion element, and the stop includes a light-emitting portion and a light-shielding portion surrounding the light-emitting portion.

6. The optical device according to claim 5, wherein a converging element for converging the first light from the light shifting element to a predetermined area of the wavelength conversion element is disposed between the wavelength conversion element and the light shifting element, wherein the predetermined area is located within an area of the wavelength conversion element defined by the light exit portion on the wavelength conversion element.

7. The optical device of claim 6, wherein a first diffusing element is disposed between the wavelength converting element and the converging element.

8. The optical device according to claim 1, wherein the light exit side of the light-transmitting member is further provided with a second diffusing element.

9. The optical device of claim 4, further comprising:

a first bracket mounted within the upper housing, the wavelength converting element being fixed on the first bracket.

10. The optical device of claim 7, further comprising:

a first support mounted within the upper housing, at least one of the diaphragm, the converging element, and the first diffusing element being secured to the first support.

11. The optical device of claim 1, further comprising:

a second support mounted within the upper housing, the light deflecting element being secured to the second support.

12. The optical device of claim 6, further comprising:

a second support mounted within the upper housing, the converging element being secured to the second support.

13. The optical device of claim 1, further comprising:

an aspheric lens disposed adjacent to the light-emitting surface of the light-emitting element, and

a third support to which the aspheric lens is fixed, the third support being configured to be adjustable in position in a plane perpendicular to the first light.

14. An optical device, comprising:

a housing including an upper housing and a lower housing that are joined to each other, an accommodating space being formed between the upper housing and the lower housing, and the accommodating space forming an opening on the upper housing, wherein the accommodating space has a central axis that extends from the lower housing in a direction toward the upper housing and that passes through the opening in an extending direction;

a first light emitting element and a second light emitting element which are both used for emitting first light, wherein the first light emitting element and the second light emitting element are arranged in the accommodating space, and the first light emitting element and the second light emitting element are oppositely arranged on two sides of the central axis;

a light-transmitting member disposed at the opening; and

a first light shifting element and a second light shifting element for shifting the first light from the first light shifting element and the second light shifting element toward the central axis and changing a traveling direction of the shifted first light to be directed toward the light transmitting member.

15. A lighting device comprising an optical device according to any one of claims 1 to 14.

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