Projection device and smart glasses

Abstract

The present embodiment relates to a projection device comprising: a housing; a lens disposed on the housing; and an adhesive bonding the lens and the housing, wherein the lens comprises an effective region through which light passes, and a flange part protruding from a part of the outer circumferential surface of the effective region, and the flange part of the lens is directly bonded to the housing by the adhesive.

Description

Projection device and smart glasses

[0001] This embodiment relates to a project device and smart glasses.

[0002] Virtual Reality (VR) refers to a specific environment or situation, or the technology itself, created using artificial technology such as computers that is similar to reality but is not actually real.

[0003] Augmented Reality (AR) refers to a technology that superimposes virtual objects or information onto a real environment to make them appear as if they exist in the original environment.

[0004] Mixed Reality (MR) or Hybrid Reality refers to the creation of new environments or new information by combining the virtual world and the real world. In particular, it is called Mixed Reality when referring to the ability to interact in real time between things existing in the real world and the virtual world.

[0005] In this case, the created virtual environment or situation stimulates the user's five senses and enables spatial and temporal experiences similar to reality, thereby allowing the user to freely cross the boundary between reality and imagination. Furthermore, the user can not only simply immerse themselves in this environment but also interact with the elements implemented within it, such as by using actual devices to perform operations or issue commands.

[0006] Recently, active research has been conducted on equipment (gear, devices) used in these technology fields. In particular, among these devices, there is a growing need for miniaturization and lightweighting in the case of wearable devices worn on the body.

[0007] (Patent Document 1) KR 10-2025-0031521 A

[0008] The present embodiment aims to provide a projection device including a miniaturized and lightweight imaging lens assembly structure.

[0009] A project device according to the present embodiment comprises a housing; a lens disposed on the housing; and an adhesive for bonding the lens and the housing, wherein the lens comprises an effective region through which light passes and a flange portion formed protruding from a part of the outer surface of the effective region, and the flange portion of the lens can be directly bonded to the housing by the adhesive.

[0010] The lens is disposed on the upper surface of the housing, and the adhesive may be disposed between the upper surface of the housing and the lower surface of the flange portion of the lens.

[0011] The above housing includes a first column portion and a second column portion formed protruding from the upper surface of the housing, and the flange portion of the lens includes a first flange portion disposed between the first column portion and the second column portion, and the first flange portion of the lens may be spaced apart from at least one of the first column portion and the second column portion.

[0012] An adhesive may not be placed between the first flange portion and the first column portion of the lens and between the first flange portion and the second column portion of the lens.

[0013] The upper end of the first column portion may be positioned at a height lower than the upper end of the lens.

[0014] The height of the first column portion protruding from the upper surface of the housing may be shorter than the length of the first flange portion of the lens in the corresponding direction.

[0015] The upper surfaces of the first column portion and the second column portion, respectively, can be formed as inclined surfaces that become lower as they approach the first flange portion.

[0016] The above housing includes a third column portion and a fourth column portion formed protruding from the upper surface of the housing, and the flange portion of the lens may include a second flange portion disposed between the third column portion and the fourth column portion.

[0017] The second flange portion may be positioned on the opposite side of the first flange portion with respect to the optical axis of the lens.

[0018] A marking portion for recognizing the direction of the lens may be formed on at least one of the first flange portion and the second flange portion.

[0019] The flange portion of the lens can be formed integrally with the effective area of ​​the lens.

[0020] The flange portion of the lens may be formed of the same material as the effective area of ​​the lens.

[0021] The flange portion of the lens may be formed only on a part of the outer surface of the effective area of ​​the lens.

[0022] The above-described project device may include a red light source, a green light source, and a blue light source coupled to the housing; and a light guide member disposed between the lens, the red light source, the green light source, and the blue light source.

[0023] The smart glasses according to the present embodiment may include a frame; a display unit disposed on the frame; and a projection device disposed on the frame and outputting an image or video to the display unit.

[0024] Through this embodiment, the miniaturization and weight reduction of the project device can be realized.

[0025] Therefore, the smart glasses to which the project device of the present embodiment is applied can also be miniaturized and lightweight.

[0026] FIG. 1 is a perspective view of a project device according to the present embodiment.

[0027] Figure 2 is a cross-sectional view taken from AA of Figure 1.

[0028] Figure 3 is a cross-sectional view taken from BB of Figure 1.

[0029] FIG. 4 is an exploded view of a project device according to the present embodiment.

[0030] FIG. 5 is a perspective view illustrating the assembly structure of an imaging lens of a project device according to the present embodiment.

[0031] FIG. 6 is a perspective view illustrating the assembly structure of an imaging lens of a project device according to a modified example.

[0032] FIG. 7 is a plan view illustrating the assembly structure of an imaging lens of a project device according to the present embodiment.

[0033] FIG. 8 is a side view illustrating the assembly structure of an imaging lens of a project device according to the present embodiment.

[0034] FIG. 9 is a front view illustrating the assembly structure of an imaging lens of a project device according to the present embodiment.

[0035] FIG. 10 is a perspective view of a projector device according to the present embodiment with the blue light source assembly omitted.

[0036] FIG. 11 is a bottom perspective view illustrating the housing and related configuration of a project device according to the present embodiment.

[0037] FIG. 12 (a) is a perspective view illustrating a red light source assembly of a projector device according to the present embodiment, and (b) is a perspective view with the cover glass omitted from (a).

[0038] FIG. 13 (a) is a perspective view illustrating a green light source assembly of a projector device according to the present embodiment, and (b) is a perspective view with the cover glass and epoxy omitted from (a).

[0039] FIG. 14 (a) is a perspective view illustrating a blue light source assembly of a projector device according to the present embodiment, and (b) is a perspective view with the cover glass and epoxy omitted from (a).

[0040] FIG. 15 is a perspective view and conceptual diagram of smart glasses according to the present embodiment.

[0041] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0042] However, the technical concept of the present invention is not limited to some of the described embodiments but can be implemented in various different forms, and within the scope of the technical concept of the present invention, one or more of the components among the embodiments may be selectively combined or substituted.

[0043] In addition, terms used in the embodiments of the present invention (including technical and scientific terms) may be interpreted in a sense that is generally understood by those skilled in the art to which the present invention belongs, unless explicitly and specifically defined otherwise. Terms that are commonly used, such as terms defined in advance, may be interpreted in consideration of their meaning in the context of the relevant technology.

[0044] Furthermore, the terms used in the embodiments of the present invention are for the purpose of describing the embodiments and are not intended to limit the present invention.

[0045] In this specification, the singular form may include the plural form unless specifically stated otherwise in the text, and when described as "at least one of A and B and C (or more than one)," it may include one or more of all combinations that can be formed from A, B, and C.

[0046] In addition, terms such as first, second, A, B, (a), (b), etc., may be used when describing the components of the embodiments of the present invention. These terms are used merely to distinguish the components from other components and are not intended to limit the essence, order, or sequence of the components.

[0047] And, where it is stated that a component is 'connected', 'combined', or 'connected' to another component, this may include not only cases where the component is directly 'connected', 'combined', or 'connected' to the other component, but also cases where it is 'connected', 'combined', or 'connected' due to another component located between the component and the other component.

[0048] Furthermore, when described as being formed or placed "above" or "below" each component, "above" or "below" includes not only cases where two components are in direct contact with each other, but also cases where one or more other components are formed or placed between the two components. Additionally, when expressed as "above" or "below," it may include the meaning of a downward direction as well as an upward direction relative to a single component.

[0049]

[0050] Hereinafter, the structure of a project device according to the present embodiment and variations will be described with reference to the drawings.

[0051] FIG. 1 is a perspective view of a projector device according to the present embodiment. FIG. 2 is a cross-sectional view taken from AA in FIG. 1. FIG. 3 is a cross-sectional view taken from BB in FIG. 1. FIG. 4 is an exploded perspective view of a projector device according to the present embodiment. FIG. 5 is a perspective view illustrating the assembly structure of an imaging lens of a projector device according to the present embodiment. FIG. 6 is a perspective view illustrating the assembly structure of an imaging lens of a projector device according to a modified example. FIG. 7 is a plan view illustrating the assembly structure of an imaging lens of a projector device according to the present embodiment. FIG. 8 is a side view illustrating the assembly structure of an imaging lens of a projector device according to the present embodiment. FIG. 9 is a front view illustrating the assembly structure of an imaging lens of a projector device according to the present embodiment. FIG. 10 is a perspective view of a projector device according to the present embodiment with the blue light source assembly omitted. FIG. 11 is a bottom perspective view illustrating the housing and related configuration of a projector device according to the present embodiment. FIG. 12 (a) is a perspective view illustrating a red light source assembly of a projector device according to the present embodiment, and (b) is a perspective view with the cover glass omitted from (a). FIG. 13 (a) is a perspective view illustrating a green light source assembly of a projector device according to the present embodiment, and (b) is a perspective view with the cover glass and epoxy omitted from (a). FIG. 14 (a) is a perspective view illustrating a blue light source assembly of a projector device according to the present embodiment, and (b) is a perspective view with the cover glass and epoxy omitted from (a).

[0052] The project device (10) according to the present embodiment may include a structure in which a flange portion (220) is formed only on a part of the outer surface of the effective area (210) of the imaging lens (200), and the flange portion (220) is directly fixed to the housing (100) with an adhesive (AD). The structure may include a structure in which pillar portions (110) of the housing (100) are formed on both sides of the flange portion (220). A gap may be formed between the flange portion (220) and the pillar portions (110) of the housing (100) without any adhesive being placed therein.

[0053] According to the present embodiment, the module size can be minimized by forming the lens flange to a minimum. Additionally, during the process of attaching the imaging lens (200) to the housing (100), it is possible to attach it while adjusting the optical alignment. Furthermore, by setting the rotation limit of the imaging lens (200) through the pillar portion (110) of the housing (100), excessive rotation can be prevented even before the imaging lens (200) is attached.

[0054] The project device (10) may include a housing (100). The housing (100) may be a fixed part. The housing (100) may be a holder. The housing (100) may be a barrel. The housing (100) may form an exterior.

[0055] The project device (10) may include a column portion (110). The housing (100) may include a column portion (110). The column portion (110) may be integrally formed with the housing (100). The column portion (110) prevents rotation of the flange portion (220) before bonding the flange portion (220) and maintains a state separated from the flange portion (220) after bonding.

[0056] The top of the column portion (110) can be positioned at a lower height than the top of the imaging lens (200).

[0057] The height (L1) protruding from the upper surface of the housing (100) of the column portion (110) may be shorter than the length (L2) of the flange portion (220) of the imaging lens (200) in the corresponding direction (see FIG. 9).

[0058] The column section (110) may include a plurality of column sections. The column section (110) may include four column sections. The column section (110) may include first to fourth column sections (111, 112, 113, 114).

[0059] The housing (100) may include a first column portion (111) and a second column portion (112) formed protruding from the upper surface of the housing (100). The housing (100) may include a third column portion (113) and a fourth column portion (114) formed protruding from the upper surface of the housing (100).

[0060] The upper end of the first column portion (111) may be positioned at a height lower than the upper end of the imaging lens (200). The height of the first column portion (111) protruding from the upper surface of the housing (100) may be shorter than the length of the first flange portion (221) of the imaging lens (200) in the corresponding direction.

[0061] The upper end of the second column portion (112) may be positioned at a lower height than the upper end of the imaging lens (200). The height of the second column portion (112) protruding from the upper surface of the housing (100) may be shorter than the length of the first flange portion (221) of the imaging lens (200) in the corresponding direction.

[0062] The upper end of the third column portion (113) may be positioned at a height lower than the upper end of the imaging lens (200). The height of the third column portion (113) protruding from the upper surface of the housing (100) may be shorter than the length of the second flange portion (222) of the imaging lens (200) in the corresponding direction.

[0063] The upper end of the fourth column portion (114) may be positioned at a lower height than the upper end of the imaging lens (200). The height of the fourth column portion (114) protruding from the upper surface of the housing (100) may be shorter than the length of the second flange portion (222) of the imaging lens (200) in the corresponding direction.

[0064] The column section (110) may include an inclined surface (115). The upper surface of the first column section (111) may be formed as an inclined surface (115) that becomes lower as it approaches the first flange section (221). The upper surface of the second column section (112) may be formed as an inclined surface (115) that becomes lower as it approaches the first flange section (221). The upper surface of the third column section (113) may be formed as an inclined surface (115) that becomes lower as it approaches the second flange section (222). The upper surface of the fourth column section (114) may be formed as an inclined surface (115) that becomes lower as it approaches the second flange section (222). The flange section (220) can be easily inserted between the column sections (110) through the inclined surface (115).

[0065] The project device (10) may include a case (150). The housing (100) may include the case (150). The case (150) may be understood as a component of the housing (100). However, the case (150) may also be understood as a separate component from the housing (100). The case (150) may be an AA (active alignment) case. The case (150) performs active alignment and may be coupled with the housing (100). The case (150) may be placed in the housing (100). The case (150) may be fixed to the housing (100). The case (150) may be coupled to the housing (100). The case (150) may be bonded to the housing (100) with adhesive. As a variation, the case (150) may be formed integrally with the housing (100). The case (150) may be a bottom case.

[0066] The project device (10) may include a retainer (160). The housing (100) may include a retainer (160). The retainer (160) may be understood as a component of the housing (100). However, the retainer (160) may also be understood as a separate component from the housing (100). The retainer (160) may be placed within the housing (100). The retainer (160) may be placed in the housing (100). The retainer (160) may be fixed to the housing (100). The retainer (160) may be placed between the housing (100) and the light guide member assembly (600). The retainer (160) may be placed in the light guide member assembly (600). The retainer (160) may fix the light guide member assembly (600) to the housing (100). The retainer (160) can fix the light guide member assembly (600) in a fixed position in the housing (100).

[0067] The projection device (10) may include an imaging lens (200). The imaging lens (200) may be referred to as a "lens." The imaging lens (200) may be an EP lens. The imaging lens (200) may be placed on the housing (100). The imaging lens (200) may be placed on the housing (100). The imaging lens (200) may be fixed to the housing (100). The imaging lens (200) may be coupled to the housing (100). The imaging lens (200) may be bonded to the housing (100) with an adhesive (AD).

[0068] The imaging lens (200) may be placed on the upper surface of the housing (100). The imaging lens (200) may be placed on the upper surface of the housing (100). The imaging lens (200) may be fixed to the upper surface of the housing (100). The imaging lens (200) may be coupled to the upper surface of the housing (100). The imaging lens (200) may be adhered to the upper surface of the housing (100) with an adhesive (AD).

[0069] The imaging lens (200) may include an effective area (210). The effective area (210) may be a lens portion. The effective area (210) may be an effective area portion. The imaging lens (200) may include an effective area (210) through which light passes. The effective area (210) may be positioned at a location corresponding to the light guide member (610). The effective area (210) may be an area where light passing through the light guide member (610) is emitted. The effective area (210) may be formed in a circular shape when viewed from above.

[0070] The imaging lens (200) may include a flange portion (220). The flange portion (220) may be a flange area. The flange portion (220) may be a non-effective area. The flange portion (220) may be formed in an effective area (210). The flange portion (220) may be formed on the outer surface of the effective area (210). The flange portion (220) may be formed protruding from the effective area (210). The flange portion (220) may be formed protruding from a part of the outer surface of the effective area (210).

[0071] The flange portion (220) of the imaging lens (200) can be attached to the housing (100) by an adhesive (AD). The flange portion (220) of the imaging lens (200) can be directly attached to the housing (100) by an adhesive (AD). The flange portion (220) of the imaging lens (200) can be directly attached to the upper surface of the housing (100) by an adhesive (AD). The lower surface of the flange portion (220) of the imaging lens (200) can be directly attached to the housing (100) by an adhesive (AD).

[0072] The flange portion (220) of the imaging lens (200) may be formed integrally with the effective area (210) of the imaging lens (200). The flange portion (220) of the imaging lens (200) may be formed of the same material as the effective area (210) of the imaging lens (200). The flange portion (220) of the imaging lens (200) may be formed of the same light-transmitting material as the effective area (210) of the imaging lens (200). The flange portion (220) may be formed of a light-transmitting material. The flange portion (220) of the imaging lens (200) may be formed only on a part of the outer surface of the effective area (210) of the imaging lens (200).

[0073] The flange portion (220) may include an outer surface facing outward. The width of the outer surface of the flange portion (220) in a direction perpendicular to the optical axis of the imaging lens (200) may be 0.6 to 1.2 mm. The width of the outer surface of the flange portion (220) in a direction perpendicular to the optical axis of the imaging lens (200) may be 0.7 to 1.1 mm.

[0074] The flange portion (220) may include a plurality of flange portions. The flange portion (220) may include two flange portions. The flange portion (220) may include first and second flange portions (221, 222). However, the flange portion (220) may include three or four or more flange portions.

[0075] The flange portion (220) may include a first flange portion (221). The first flange portion (221) may be positioned between the first column portion (111) and the second column portion (112).

[0076] The first flange portion (221) of the imaging lens (200) may be spaced apart from at least one of the first column portion (111) and the second column portion (112). The first flange portion (221) may be spaced apart from the first column portion (111). The first flange portion (221) may be spaced apart from the second column portion (112). The first flange portion (221) may be spaced apart from each of the first column portion (111) and the second column portion (112).

[0077] An adhesive (AD) may not be placed between the first flange portion (221) and the first column portion (111) of the imaging lens (200) and between the first flange portion (221) and the second column portion (112) of the imaging lens (200).

[0078] In the comparative example, an adhesive may be placed between the first flange portion (221) and the first column portion (111). In this case, during the curing process of the adhesive in the comparative example, the first flange portion (221) may move slightly in a direction closer to the first column portion (111) or in a direction further away from the first column portion (111). Through this, the alignment of the imaging lens (200) may be misaligned.

[0079] In this embodiment, the adhesive (AD) is placed only in the optical axis direction between the imaging lens (200) and the housing (100), so there is an advantage in that the effect of adhesive curing is managed only in the optical axis alignment.

[0080] A gap may be formed between the flange portion (220) and the column portion (110). An adhesive may not be placed in the gap.

[0081] The flange portion (220) may include a second flange portion (222). The second flange portion (222) may be positioned between the third column portion (113) and the fourth column portion (114). The second flange portion (222) may be positioned on the opposite side of the first flange portion (221) with respect to the optical axis of the imaging lens (200).

[0082] The second flange portion (222) of the imaging lens (200) may be spaced apart from at least one of the third column portion (113) and the fourth column portion (114). The second flange portion (222) may be spaced apart from the third column portion (113). The second flange portion (222) may be spaced apart from the fourth column portion (114). The second flange portion (222) may be spaced apart from each of the third column portion (113) and the fourth column portion (114).

[0083] An adhesive (AD) may not be placed between the second flange portion (222) and the third pillar portion (113) of the imaging lens (200) and between the second flange portion (222) and the fourth pillar portion (114) of the imaging lens (200).

[0084] In a modified example, as shown in FIG. 6, the imaging lens (200) may include a marking portion (230).

[0085] A marking portion (230) for recognizing the direction of the imaging lens (200) may be formed on at least one of the first flange portion (221) and the second flange portion (222). The marking portion (230) may be formed on the first flange portion (221). The marking portion (230) may be formed on the outer surface of the first flange portion (221). The marking portion (230) may be formed on the outer surface of the first flange portion (221). The marking portion (230) may be formed as an intaglio on the first flange portion (221). The marking portion (230) may be formed as a relief on the first flange portion (221). The marking portion (230) may be formed as a groove on the first flange portion (221). The marking portion (230) may be formed as a hole in the first flange portion (221). The marking portion (230) may be formed as a protrusion in the first flange portion (221). The marking portion (230) may be formed as a circular groove in the first flange portion (221).

[0086] The radius of curvature of the effective area (210) on the side of the first flange portion (221) and the effective area on the side of the second flange portion (222) may vary due to manufacturing tolerances. In a modified example, the direction of the imaging lens (200) is recognized through the marking portion (230) and assembled into the housing (100), thereby minimizing errors due to manufacturing tolerances.

[0087] The project device (10) may include an adhesive (AD). The adhesive (AD) may include epoxy. The adhesive (AD) may bond the imaging lens (200) and the housing (100). The adhesive (AD) may be placed between the upper surface of the housing (100) and the lower surface of the flange portion (220) of the imaging lens (200).

[0088] The adhesive (AD) may overlap with the housing (100) in the optical axis direction. The adhesive (AD) may overlap with the flange portion (220) of the imaging lens (200) in the optical axis direction. The adhesive (AD) may be placed between the housing (100) and the flange portion (220) of the imaging lens in the optical axis direction.

[0089] The project device (10) may include a red light source assembly (300). The red light source assembly (300) may be placed in a housing (100). The red light source assembly (300) may be fixed to the housing (100). The red light source assembly (300) may be coupled to the housing (100). The red light source assembly (300) may be bonded to the housing (100) with adhesive. The red light source assembly (300) may emit red light to a light guide member assembly (600). The red light source assembly (300) may be a red panel.

[0090] The red light source assembly (300) may include a substrate (310). The substrate (310) may be a flexible printed circuit board (FPCB). The substrate (310) may be a flexible substrate. A connector (315) may be disposed on the substrate (310). The red light source assembly (300) may include a connector (315). The connector (315) may be coupled with a connector of another light source or an external connector. Through this, an electrical connection between the connectors can be made.

[0091] The red light source assembly (300) may include a red light source (320). The red light source (320) may be a light source that emits red light. The red light source (320) may be an LED light source. The red light source (320) may be an R light source among RGB light sources. The red light source (320) may be placed in the housing (100). The red light source (320) may be fixed to the housing (100). The red light source (320) may be coupled to the housing (100). The red light source (320) may be placed on the substrate (310). The red light source (320) may be placed on the substrate (310). The red light source (320) may be coupled to the substrate (310). The red light source (320) may be fixed to the substrate (310). The red light source (320) can be mounted on the substrate (310). The red light source (320) can be electrically connected to the substrate (310). The red light source (320) can receive power from the substrate (310).

[0092] The red light source assembly (300) may include a cover glass (330). The cover glass (330) may be placed on the red light source (320). The cover glass (330) may be fixed to the red light source (320). The cover glass (330) may be coupled to the red light source (320). The cover glass (330) may be placed on the light emission surface of the red light source (320).

[0093] The red light source assembly (300) may include epoxy (340). The epoxy (340) may be an adhesive. The epoxy (340) may be an adhesive. The epoxy (340) may be a viscous material. The epoxy (340) may be positioned to cover a portion of the red light source (320) and the substrate (310). The epoxy (340) may fix the red light source (320) to the substrate (310). The epoxy (340) may be positioned between the cover glass (330) and the substrate (310). The epoxy (340) may be bonded to the substrate (310). The epoxy (340) may be bonded to the red light source (320). The epoxy (340) may be bonded to the cover glass (330).

[0094] The red light source assembly (300) may include a stiffener (350). The stiffener (350) may be placed on a substrate (310). The stiffener (350) may be fixed to the substrate (310). The stiffener (350) may be coupled to the substrate (310). The stiffener (350) may be bonded to the substrate (310) with an adhesive. The stiffener (350) may be placed on a red light source (320). The stiffener (350) may be fixed to the red light source (320). The stiffener (350) may be coupled to the red light source (320). The stiffener (350) may be in contact with the red light source (320). The stiffener (350) may transfer heat generated from the red light source (320). The stiffener (350) may be formed of metal. The stiffener (350) may be formed of a material with higher thermal conductivity than the substrate (310). The stiffener (350) may be formed of a material with higher rigidity than the substrate (310). The stiffener (350) may be formed of a metal plate.

[0095] The project device (10) may include a green light source assembly (400). The green light source assembly (400) may be placed in the housing (100). The green light source assembly (400) may be fixed to the housing (100). The green light source assembly (400) may be coupled to the housing (100). The green light source assembly (400) may be bonded to the housing (100) with adhesive. The green light source assembly (400) may emit green light to the light guide member assembly (600). The green light source assembly (400) may be a green panel.

[0096] The green light source assembly (400) may include a substrate (410). The substrate (410) may be a flexible printed circuit board (FPCB). The substrate (410) may be a flexible substrate. A connector (415) may be disposed on the substrate (410). The green light source assembly (400) may include a connector (415). The connector (415) may be coupled with a connector of another light source or an external connector. Through this, an electrical connection between the connectors can be made.

[0097] The green light source assembly (400) may include a green light source (420). The green light source (420) may be a light source that emits green light. The green light source (420) may be an LED light source. The green light source (420) may be a G light source among RGB light sources. The green light source (420) may be placed in the housing (100). The green light source (420) may be fixed to the housing (100). The green light source (420) may be coupled to the housing (100). The green light source (420) may be placed on the substrate (410). The green light source (420) may be placed on the substrate (410). The green light source (420) may be coupled to the substrate (410). The green light source (420) may be fixed to the substrate (410). The green light source (420) can be mounted on the substrate (410). The green light source (420) can be electrically connected to the substrate (410). The green light source (420) can receive power from the substrate (410).

[0098] The green light source assembly (400) may include a cover glass (430). The cover glass (430) may be placed on the green light source (420). The cover glass (430) may be fixed to the green light source (420). The cover glass (430) may be coupled to the green light source (420). The cover glass (430) may be placed on the light emission surface of the green light source (420).

[0099] The green light source assembly (400) may include epoxy (440). The epoxy (440) may be an adhesive. The epoxy (440) may be an adhesive. The epoxy (440) may be a viscous material. The epoxy (440) may be positioned to cover a portion of the green light source (420) and the substrate (410). The epoxy (440) may fix the green light source (420) to the substrate (410). The epoxy (440) may be positioned between the cover glass (430) and the substrate (410). The epoxy (440) may be bonded to the substrate (410). The epoxy (440) may be bonded to the green light source (420). The epoxy (440) may be bonded to the cover glass (430).

[0100] The green light source assembly (400) may include a stiffener (450). The stiffener (450) may be placed on the substrate (410). The stiffener (450) may be fixed to the substrate (410). The stiffener (450) may be coupled to the substrate (410). The stiffener (450) may be bonded to the substrate (410) with an adhesive. The stiffener (450) may be placed on the green light source (420). The stiffener (450) may be fixed to the green light source (420). The stiffener (450) may be coupled to the green light source (420). The stiffener (450) may be in contact with the green light source (420). The stiffener (450) may transfer heat generated from the green light source (420). The stiffener (450) may be formed of metal. The stiffener (450) may be formed of a material with higher thermal conductivity than the substrate (410). The stiffener (450) may be formed of a material with higher rigidity than the substrate (410). The stiffener (450) may be formed of a metal plate.

[0101] The project device (10) may include a blue light source assembly (500). The blue light source assembly (500) may be placed in a housing (100). The blue light source assembly (500) may be fixed to the housing (100). The blue light source assembly (500) may be coupled to the housing (100). The blue light source assembly (500) may be bonded to the housing (100) with adhesive. The blue light source assembly (500) may emit blue light to a light guide member assembly (600). The blue light source assembly (500) may be a blue panel.

[0102] A blue light source assembly (500) may include a substrate (510). The substrate (510) may be a flexible printed circuit board (FPCB). The substrate (510) may be a flexible substrate. A connector (515) may be disposed on the substrate (510). The blue light source assembly (500) may include a connector (515). The connector (515) may be coupled with a connector of another light source or an external connector. Through this, an electrical connection between the connectors can be made.

[0103] The blue light source assembly (500) may include a blue light source (520). The blue light source (520) may be a light source that emits blue light. The blue light source (520) may be an LED light source. The blue light source (520) may be a B light source among RGB light sources. The blue light source (520) may be placed in the housing (100). The blue light source (520) may be fixed to the housing (100). The blue light source (520) may be coupled to the housing (100). The blue light source (520) may be placed on the substrate (510). The blue light source (520) may be placed on the substrate (510). The blue light source (520) may be coupled to the substrate (510). The blue light source (520) may be fixed to the substrate (510). A blue light source (520) can be mounted on a substrate (510). The blue light source (520) can be electrically connected to the substrate (510). The blue light source (520) can receive power from the substrate (510).

[0104] The blue light source assembly (500) may include a cover glass (530). The cover glass (530) may be placed on the blue light source (520). The cover glass (530) may be fixed to the blue light source (520). The cover glass (530) may be coupled to the blue light source (520). The cover glass (530) may be placed on the light emission surface of the blue light source (520).

[0105] The blue light source assembly (500) may include epoxy (540). The epoxy (540) may be an adhesive. The epoxy (540) may be an adhesive. The epoxy (540) may be a viscous material. The epoxy (540) may be positioned to cover a portion of the blue light source (520) and the substrate (510). The epoxy (540) may fix the blue light source (520) to the substrate (510). The epoxy (540) may be positioned between the cover glass (530) and the substrate (510). The epoxy (540) may be bonded to the substrate (510). The epoxy (540) may be bonded to the blue light source (520). The epoxy (540) may be bonded to the cover glass (530).

[0106] The blue light source assembly (500) may include a stiffener (550). The stiffener (550) may be placed on a substrate (510). The stiffener (550) may be fixed to the substrate (510). The stiffener (550) may be bonded to the substrate (510). The stiffener (550) may be bonded to the substrate (510) with an adhesive. The stiffener (550) may be placed on a blue light source (520). The stiffener (550) may be fixed to the blue light source (520). The stiffener (550) may be bonded to the blue light source (520). The stiffener (550) may be in contact with the blue light source (520). The stiffener (550) may transfer heat generated from the blue light source (520). The stiffener (550) may be formed of metal. The stiffener (550) may be formed of a material with higher thermal conductivity than the substrate (510). The stiffener (550) may be formed of a material with higher rigidity than the substrate (510). The stiffener (550) may be formed of a metal plate.

[0107] The project device (10) may include a light guide member assembly (600). The light guide member assembly (600) may be placed within a housing (100). The light guide member assembly (600) may be fixed within the housing (100). The light guide member assembly (600) may be placed within the housing (100) by a retainer (160). The light guide member assembly (600) may be fixed within the housing (100) by a retainer (160). The light guide member assembly (600) may be an x-cube assembly. The light guide member assembly (600) is placed within the housing (100) and may perform the function of reflecting light incident from a light source (320, 420, 520) to an imaging lens (200).

[0108] The project device (10) may include a light guide member (610). The light guide member assembly (600) may include a light guide member (610). The light guide member (610) may include a prism. The light guide member (610) may include at least one prism. The light guide member (610) may include a plurality of prisms. The light guide member (610) may be formed by combining or joining a plurality of prisms. The light guide member (610) may include an X-prism. The light guide member (610) may be a structure in which two or more prisms are combined. The light guide member (610) may be a structure in which four prisms are combined. The light guide member (610) may be a non-polarizing prism. The light guide member (610) may not perform polarization on the light emitted from the light source (320, 420, 520).

[0109] The light guide member (610) may include a coated surface. The coated surface may be formed of a reflective member or a reflective sheet. The light guide member (610) may include at least two coated surfaces. One of the at least two coated surfaces may reflect light of a first wavelength and light of a second wavelength, and transmit light of a third wavelength. That is, the coated surface may reflect light of a predetermined wavelength band. Accordingly, for each of the light emitted from a plurality of light sources (320, 420, 520), light of a desired wavelength band may be reflected from the light guide member (610). The light passing through the light guide member (610) may be provided to an imaging lens (200).

[0110] The light guide member (610) can be positioned between the imaging lens (200) and the green light source (420). The light guide member (610) can be positioned between the red light source (320) and the blue light source (520).

[0111] The project device (10) may include a lens (620). The light guide member assembly (600) may include a lens (620). The lens (620) may be placed on the light guide member (610). The lens (620) may be fixed to the light guide member (610). The lens (620) may be coupled to the light guide member (610). The lens (620) may be bonded to the light guide member (610). The lens (620) may be placed between the light guide member (610) and the light source (320, 420, 520). The lens (620) may be placed between the light guide member (610) and the imaging lens (200).

[0112] The project device (10) may include a heat dissipation member assembly (700). The heat dissipation member assembly (700) may dissipate heat generated from a light source (320, 420, 520). The heat dissipation member assembly (700) may be placed on a light source assembly (300, 400, 500). The heat dissipation member assembly (700) may be fixed to a light source assembly (300, 400, 500). The heat dissipation member assembly (700) may be coupled to a light source assembly (300, 400, 500). The heat dissipation member assembly (700) may be in contact with a light source assembly (300, 400, 500). The heat dissipation member assembly (700) may be a heat sink. The heat sink can perform the role of absorbing and dissipating heat generated from the light source (320, 420, 520).

[0113] The project device (10) may include a red heat dissipation member (710). The heat dissipation member assembly (700) may include a red heat dissipation member (710). The red heat dissipation member (710) may dissipate heat generated from a red light source (320). The red heat dissipation member (710) may be placed in the red light source (320). The red heat dissipation member (710) may be placed in the red light source assembly (300). The red heat dissipation member (710) may be placed in the stiffener (350). The red heat dissipation member (710) may be formed of a material with high thermal conductivity. The red heat dissipation member (710) may be formed of metal. The thickness of the red heat dissipation member (710) may be thicker than the thickness of the stiffener (350).

[0114] The project device (10) may include a green heat dissipation member (720). The heat dissipation member assembly (700) may include a green heat dissipation member (720). The green heat dissipation member (720) may dissipate heat generated from a green light source (420). The green heat dissipation member (720) may be placed in the green light source (420). The green heat dissipation member (720) may be placed in the green light source assembly (400). The green heat dissipation member (720) may be placed in the stiffener (450). The green heat dissipation member (720) may be formed of a material with high thermal conductivity. The green heat dissipation member (720) may be formed of metal. The thickness of the green heat dissipation member (720) may be thicker than the thickness of the stiffener (450).

[0115] The project device (10) may include a blue heat dissipation member (730). The heat dissipation member assembly (700) may include a blue heat dissipation member (730). The blue heat dissipation member (730) may dissipate heat generated from a blue light source (520). The blue heat dissipation member (730) may be placed in the blue light source (520). The blue heat dissipation member (730) may be placed in the blue light source assembly (500). The blue heat dissipation member (730) may be placed in the stiffener (550). The blue heat dissipation member (730) may be formed of a material with high thermal conductivity. The blue heat dissipation member (730) may be formed of metal. The thickness of the blue heat dissipation member (730) may be thicker than the thickness of the stiffener (550).

[0116] The project device (10) may include a tape (TA). The tape (TA) may adhere the substrate (510) to the housing (100). The tape (TA) may be placed between the substrate (510) and the housing (100). As a variation, the tape (TA) may adhere the substrate (310) to the housing (100). Alternatively, the tape (TA) may adhere between the substrates.

[0117]

[0118] The structure of the smart glasses according to the present embodiment will be described below with reference to the drawings.

[0119] FIG. 16 is a perspective view and conceptual diagram of smart glasses according to the present embodiment.

[0120] The present embodiment may include an electronic device. The electronic device may be smart glasses. The electronic device may be AR glasses. The electronic device may be provided in a glass type. The glass-type electronic device is configured to be wearable on the head of the human body and may be provided with a frame (20) for this purpose. The frame (20) may be formed of a flexible material to facilitate wearing.

[0121] Smart glasses can be AR (Augmented Reality) glasses, video output devices, wearable devices, etc.

[0122] Smart glasses may include a frame (20). The frame (20) is supported on the head and provides a space for mounting various components. As illustrated, electronic components such as a projector (10), a user input unit (23), or an audio output unit (24) may be mounted on the frame (20). Additionally, a lens covering at least one of the left and right eyes may be detachably mounted on the frame (20).

[0123] As shown in the drawing, the frame (20) may have the form of glasses worn on the face of the user, but is not necessarily limited thereto and may have the form of goggles worn in close contact with the user's face.

[0124] Such a frame (20) may include a front frame (21) having at least one opening and a pair of side frames (22) that extend in the y direction (see FIG. 15) intersecting the front frame (21) and are parallel to each other.

[0125] Smart glasses may include a projection device (10). The projection device (10) is configured to control various electronic components provided in an electronic device. The projection device (10) may be used in combination with a light output device, a light projection device, a light irradiation device, an optical device, etc.

[0126] The projection device (10) can generate an image or a continuous sequence of images that is displayed to the user. The projection device (10) may include an image source panel that generates an image and a plurality of lenses that diffuse and converge the light generated from the image source panel.

[0127] The project device (10) may be fixed to one of the two side frames (22). For example, the project device (10) may be fixed to the inside or outside of one of the side frames (22), or may be formed integrally by being embedded inside one of the side frames (22). Alternatively, the project device (10) may be fixed to the front frame (21) or provided separately from the electronic device. The project device (10) may be placed in the frame (20). The project device (10) may output an image or video to the display unit (30).

[0128] Smart glasses may include a display unit (30). The display unit (30) may be implemented in the form of a Head Mounted Display (HMD). An HMD form refers to a display method that is mounted on the head and displays images directly in front of the user's eyes. In order to provide images directly in front of the user's eyes when the user wears the electronic device, the display unit (30) may be positioned to correspond to at least one of the left eye and the right eye. In this drawing, the display unit (30) is exemplified as being located in the part corresponding to the right eye so as to output images toward the user's right eye. However, as described above, it is not limited to this and may be positioned on both the left eye and the right eye.

[0129] The display unit (30) can allow the user to visually perceive the external environment while simultaneously displaying an image generated by the projection device (10) to the user. For example, the display unit (30) can project an image onto a display area using a prism. The display unit (30) can be placed in a frame (20).

[0130] And the display unit (30) may be formed to be transparent so that the projected image and the general field of view in front, that is, the range the user looks at through their eyes, can be seen simultaneously. For example, the display unit (30) may be translucent and may be formed of an optical member including glass.

[0131] The display unit (30) may be inserted into and fixed to an opening included in the front frame (21), or positioned on the back of the opening, that is, between the opening and the user, and fixed to the front frame (21). Although the drawing illustrates an example in which the display unit (30) is positioned on the back of the opening and fixed to the front frame (21), the display unit (30) may be placed and fixed at various locations on the frame (20).

[0132] As illustrated in FIG. 15, when an image light for an image is incident on one side of a display unit (30) from a projection device (10), the image light is emitted through the display unit (30) to the other side, thereby allowing the image generated by the projection device (10) to be shown to the user.

[0133] Accordingly, the user can view the external environment through the opening of the frame (20) while simultaneously viewing the image generated by the projection device (10). That is, the image output through the display unit (30) can be seen overlapping with the normal field of view. The electronic device can utilize these display characteristics to provide Augmented Reality (AR) that overlays a virtual image onto a real image or background to display it as a single image.

[0134] Furthermore, in addition to this operation, the external environment and the image generated by the projection device (10) may be provided to the user with a time difference for a short period that is not perceived by the user. For example, within a single frame, the external environment may be provided to the user in one section, and the image from the projection device (10) may be provided to the user in another section. Alternatively, both overlap and time difference may be provided.

[0135] In addition, the projection device according to the embodiment may have a structure described below, or may be formed with a structure further including a waveguide or / and glass in the structure. In addition, the projection device may include a Digital Light Processing (DLP) projector or a projection device.

[0136]

[0137] Although embodiments of the present invention have been described above with reference to the attached drawings, those skilled in the art will understand that the present invention may be implemented in other specific forms without changing its technical concept or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive.

Claims

1. Housing; A lens disposed on the above housing; and It includes an adhesive that bonds the lens and the housing, The above lens includes an effective region through which light passes and a flange portion formed to protrude from a part of the outer surface of the effective region. A project device in which the flange portion of the above lens is directly bonded to the housing by the above adhesive.

2. In Paragraph 1, The above lens is positioned on the upper surface of the housing, and The above adhesive is a project device disposed between the upper surface of the housing and the lower surface of the flange portion of the lens.

3. In Paragraph 2, The above housing includes a first column portion and a second column portion formed protruding from the upper surface of the housing, and The flange portion of the lens includes a first flange portion disposed between the first column portion and the second column portion, and The first flange portion of the lens is a project device spaced apart from at least one of the first column portion and the second column portion.

4. In Paragraph 3, A project device in which no adhesive is placed between the first flange portion and the first column portion of the lens and between the first flange portion and the second column portion of the lens.

5. In Paragraph 3, A project device in which the upper end of the first column portion is positioned at a height lower than the upper end of the lens.

6. In Paragraph 3, A project device in which the height of the first column portion protruding from the upper surface of the housing is shorter than the length of the first flange portion of the lens in the corresponding direction.

7. In Paragraph 3, A project device in which the upper surfaces of the first column section and the second column section are formed as inclined surfaces that become lower as they approach the first flange section.

8. In Paragraph 3, The above housing includes a third column portion and a fourth column portion formed protruding from the upper surface of the housing, and A project device comprising a second flange portion disposed between the third column portion and the fourth column portion of the above-mentioned lens, wherein the flange portion of the above-mentioned lens is a second flange portion.

9. In Paragraph 8, The second flange portion is a projection device positioned on the opposite side of the first flange portion with respect to the optical axis of the lens.

10. In Paragraph 8, A projection device having a marking portion formed on at least one of the first flange portion and the second flange portion to recognize the direction of the lens.

Images