CN217467451U - Optical assembly and projection system - Google Patents

Abstract

The embodiment of the application provides an optical assembly and a projection system. The optical assembly includes: support frame, spectroscope, adjustment Assembly and retaining member. The support frame is provided with and holds the chamber, and relative lateral wall is provided with a plurality of first through-holes respectively in the support frame. The adjusting component is arranged in the accommodating cavity and comprises a main body part, the spectroscope is connected with the main body part, and a fixing hole matched with the first through hole is formed in the main body part. The retaining member wears to locate first through-hole and is connected with the fixed orifices, has the adjustment clearance between retaining member and the first through-hole to adjust the position of adjustment subassembly for the support frame. In this embodiment, an adjusting gap is formed between the locking member and the first through hole, so that the position of the adjusting assembly relative to the supporting frame can be adjusted. The optical assembly in the embodiment can adjust the position and the angle of the spectroscope according to optical requirements, and when the optical assembly is applied to a projection system, the projection quality of the projection system can be improved.

Description

Optical assembly and projection system

Technical Field

The present application relates to the field of display technologies, and in particular, to an optical assembly and a projection system.

Background

This section provides background information related to the present application and is not necessarily prior art.

LCOS (Liquid Crystal On Silicon, LCOS for short) projection display system can receive image signal from external video equipment and project amplified image to display screen, it is suitable for introducing some information to large amount of audience, LCOS as new display device is applied to display equipment in many fields of intelligent hardware, trade show, medical treatment, education, entertainment, etc. because of its advantages of large screen, high brightness, high resolution, low power consumption, etc., its application prospect is good by consumers and industry.

In the related art, a light splitting structure is adopted in an LCOS projection system, and the light splitting structure often needs to be adjusted in angle to meet optical requirements, so that the current angle efficiency through manually adjusting the light splitting structure is low, the required angle cannot be fixed in real time, and the effect of the projection system is affected if the angle of the light splitting structure is not adjusted, so that how to improve the projection effect of the projection system is a problem which needs to be solved urgently at present.

SUMMERY OF THE UTILITY MODEL

The application aims to provide an optical assembly and a projection system to solve the problem of low projection effect in the related art. In order to achieve the above purpose, the present application provides the following technical solutions:

embodiments of the first aspect of the present application provide an optical assembly for use in a projection system. The optical assembly includes: support frame, spectroscope, adjustment Assembly and retaining member. The support frame is provided with and holds the chamber, and relative lateral wall is provided with a plurality of first through-holes respectively in the support frame. The adjusting component is arranged in the accommodating cavity and comprises a main body part, the spectroscope is connected with the main body part, and a fixing hole matched with the first through hole is formed in the main body part. The retaining member wears to locate first through-hole and is connected with the fixed orifices, has the adjustment clearance between retaining member and the first through-hole to adjust the position of adjustment subassembly for the support frame. According to the optical assembly in the embodiment of the application, the adjusting assembly is arranged in the accommodating cavity of the support frame, the adjusting assembly and the support frame are respectively provided with the plurality of fixing holes and the plurality of first through holes, and the locking piece penetrates through the first through holes to be connected with the fixing holes, so that the adjusting assembly can be fixed in the accommodating cavity of the support frame. In the assembling process, because the adjusting gap is formed between the locking piece and the first through hole, the position of the locking piece relative to the first through hole of the support frame can be properly adjusted according to the angle requirement of the spectroscope, so that the optical requirement of the optical assembly is met. In this embodiment, since the adjusting gap is formed between the locking member and the first through hole, the position of the adjusting assembly relative to the supporting frame can be adjusted, and the optical assembly in this embodiment can adjust the position and the angle of the beam splitter according to optical requirements, so that when the optical assembly is applied to a projection system, the projection quality of the projection system can be improved.

In addition, according to the embodiment of the application, the following additional technical features can be provided:

in some embodiments of the present application, an adjusting shaft is disposed on a same side wall of the main body portion as the fixing hole, and a second through hole adapted to the adjusting shaft is disposed on a side wall of the supporting frame, and the second through hole is configured to adjust an adjusting window of the adjusting shaft.

In some embodiments of the present application, the optical assembly further includes a plurality of limiting members, the limiting members are fixedly connected to the supporting frame, and the limiting members are provided with arc grooves adapted to the adjusting shafts, and the adjusting shafts are clamped in the arc grooves of two of the limiting members.

In some embodiments of the present application, an axial end of the adjustment shaft is provided with a blind internal hexagonal hole.

In some embodiments of the present application, the adjustment assembly further includes a pressing plate detachably connected to the main body portion, and the spectroscope is interposed between the pressing plate and the main body portion.

In some embodiments of the present application, the pressing plate is provided with a plurality of pressing portions, and the plurality of pressing portions are attached to the beam splitter so that the beam splitter is closely attached to the main body portion.

In some embodiments of the present application, a step structure adapted to the spectroscope is disposed on the main body portion, and the spectroscope is disposed on the step structure.

In some embodiments of the present application, the retaining member includes a screw and a resilient pad.

In some embodiments of the present application, the optical assembly further includes a fixing glue covering an end portion of the screw, the fixing glue being configured to prevent the screw from being positionally displaced with respect to the support bracket.

Embodiments of the second aspect of the present application propose a projection system comprising an optical assembly as in any of the embodiments of the first aspect. Since the optical assembly of any embodiment of the first aspect is provided, the optical assembly also has the advantages of any embodiment of the first aspect, and details are not repeated herein.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Like reference numerals refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a schematic view of an optical assembly according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of an alternative embodiment of an optical assembly;

FIG. 3 is a top view of an optical assembly in an embodiment of the present application;

FIG. 4 is a schematic structural diagram of an adjusting assembly of an optical assembly according to an embodiment of the present disclosure (including a beam splitter);

FIG. 5 is a schematic structural diagram of a main body portion of an adjustment assembly in an optical assembly according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of a platen of an adjustment assembly in an optical assembly according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of a beam splitter of an optical assembly according to an embodiment of the present disclosure;

FIG. 8 is a schematic diagram illustrating a structure of one of the position limiters of the optical assembly according to an embodiment of the present disclosure;

fig. 9 is a schematic structural diagram of another position limiter of an optical assembly according to an embodiment of the present disclosure.

The reference symbols in the drawings denote the following:

100-a support frame; 110 — a first via; 120-a second via;

200-a beam splitter;

300-an adjustment assembly; 310-a body portion; 311-a fixation hole; 312-an adjustment shaft; 313-inner hexagonal blind hole; 314-a step structure; 320-a pressing plate; 321-a pressing part;

400-a retaining member;

500-a stop; 510-arc groove; 501-a first limiting piece; 502-second stop.

Detailed Description

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and it is also obvious for a person skilled in the art to obtain other embodiments according to the drawings.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the description herein are intended to be within the scope of the present disclosure.

In the related art, a light splitting structure is adopted in an LCOS projection system, the light splitting structure often needs to be adjusted in angle to meet optical requirements, the current angle efficiency through manual adjustment of the light splitting structure is low, a required angle cannot be fixed in real time, and the projection effect of the projection system is affected if the angle of the light splitting structure is not adjusted, so that the problem that how to improve the projection quality of the projection system is needed to be solved urgently at present is solved.

In view of this, as shown in fig. 1 to 7, the embodiment of the first aspect of the present application provides an optical assembly applied to a projection system. The optical assembly includes: support 100, spectroscope 200, adjustment assembly 300 and retaining member 400. The supporting frame 100 is provided with an accommodating cavity, and opposite side walls of the supporting frame 100 are respectively provided with a plurality of first through holes 110. The adjusting assembly 300 is disposed in the accommodating cavity, the adjusting assembly 300 includes a main body portion 310, the beam splitter 200 is connected to the main body portion 310, and the main body portion 310 is provided with a fixing hole 311 adapted to the first through hole 110. The locking member 400 is inserted into the first through hole 110 and connected to the fixing hole 311, and an adjusting gap is formed between the locking member 400 and the first through hole 110 to adjust the position of the adjusting assembly 300 relative to the supporting frame 100.

According to the optical assembly of the embodiment of the present application, the adjusting assembly 300 is disposed in the receiving cavity of the supporting frame 100, the plurality of fixing holes 311 and the plurality of first through holes 110 are respectively disposed on the adjusting assembly 300 and the supporting frame 100, and the locking member 400 passes through the first through holes 110 to be connected to the fixing holes 311, so that the adjusting assembly 300 can be fixed in the receiving cavity of the supporting frame 100. In the assembling process, since the adjusting gap is formed between the adjusting assembly 300 and the first through hole 110, the position of the locking member 400 relative to the first through hole 110 of the supporting frame 100 can be properly adjusted according to the angle requirement of the beam splitter 200, so as to meet the optical requirement of the optical assembly. In the present embodiment, since the adjusting gap is formed between the locking member 400 and the first through hole 110, the position of the adjusting assembly 300 relative to the supporting frame 100 can be adjusted, and the optical assembly in the present embodiment can adjust the position and the angle of the beam splitter 200 according to the optical requirement, so that when the optical assembly is applied to the projection system, the projection quality of the projection system can be improved.

As shown in fig. 2 and 5, in some embodiments of the present application, the main body 310 is provided with an adjusting shaft 312 on the same side wall as the fixing hole 311, the side wall of the supporting frame 100 is provided with a second through hole 120 adapted to the adjusting shaft 312, and the second through hole 120 is configured to adjust an adjusting window of the adjusting shaft 312. In this embodiment, the sidewall of the main body 310 is further provided with an adjusting shaft 312, and during the assembling process, the position of the adjusting assembly 300 relative to the supporting frame 100 can be changed by moving the adjusting shaft 312, so as to finely adjust the position and the angle of the adjusting assembly 300. The second through hole 120 in this embodiment can be used as an adjustment window, that is, an external tool can pass through the second through hole 120 to adjust the position of the adjustment shaft 312, so that the position and the angle of the adjustment assembly 300 can be adjusted more conveniently.

As shown in fig. 3, 8 and 9, in some embodiments of the present application, the optical assembly further includes a plurality of limiting members 500, the limiting members 500 are fixedly connected to the supporting frame 100, the limiting members 500 are provided with arc grooves 510 adapted to the adjusting shaft 312, and the adjusting shaft 312 is clamped in the arc grooves 510 of two of the limiting members 500. In this embodiment, the supporting frame 100 is connected with a plurality of limiting members 500, during the assembling process, a part of the limiting members 500 may be fixed on the supporting frame 100, then the adjusting shafts 312 in the adjusting assembly 300 are correspondingly disposed on the arc grooves 510 of the limiting members 500, after the adjusting assembly 300 is placed in the accommodating cavity, another part of the limiting members 500 are installed, and the arc grooves 510 of the limiting members 500 are aligned with the adjusting shafts 312 of the adjusting assembly 300, so that the adjusting shafts 312 in the adjusting assembly 300 can be clamped in the arc grooves 510 of the two limiting members 500. Referring to fig. 8 and fig. 9, a first limiting member 501 and a second limiting member 502 with two different structures are illustrated, and are respectively disposed on two opposite sidewalls of the supporting frame 100. It should be noted that, after the adjusting shaft 312 is clamped in the circular arc grooves 510 of two of the position-limiting members 500, the adjusting shaft 312 needs to have a certain gap to ensure that the position and the angle of the adjusting shaft 312 can be adjusted, that is, the position-limiting member 500 above the adjusting shaft 312 and the adjusting shaft 312 need to have a certain reserved space.

In some embodiments of the present application, an axial end of the adjustment shaft 312 is provided with a blind internal hexagonal hole 313. In the present embodiment, when the position or the angle of the adjustment shaft 312 needs to be adjusted, the adjustment shaft 312 may be adjusted by using a tool such as an internal hexagon wrench, and it should be noted that the internal hexagon blind hole 313 in the present embodiment may also be a hole with another structure, which is not particularly limited in the present embodiment.

In some embodiments of the present application, the adjusting assembly 300 further includes a pressing plate 320, the pressing plate 320 is detachably connected to the main body 310, and the spectroscope 200 is sandwiched between the pressing plate 320 and the main body 310. In this embodiment, the pressing plate 320 is used to fix the spectroscope 200 on the main body portion 310, for example, a plurality of through holes may be provided on the pressing plate 320, and a screw hole adapted to the through hole is provided on the main body portion 310, and in the assembling process, only the spectroscope 200 needs to be clamped between the main body portion 310 and the pressing plate 320, and the screw passes through the through hole and is connected to the screw hole, so that the fixation of the spectroscope 200 can be completed.

In some embodiments of the present application, the pressing plate 320 is provided with a plurality of pressing parts 321, and the plurality of pressing parts 321 are attached to the combiner 200 to make the combiner 200 closely attached to the main body part 310. In this embodiment, the pressing portion 321 is used for pressing the beam splitter 200 to be closely attached to the main body portion 310. For example, the pressing portion 321 may be a part protruding from the surface of the pressing plate 320 and having an elastic function, and may be a sheet metal part having a small thickness and a certain elasticity, and the number of the pressing portions 321 may also be multiple, so that the spectroscope 200 can be better sandwiched between the main body portion 310 and the pressing plate 320. It should be noted that the pressing force applied by the pressing portion 321 should not be too large, so as to avoid damage to the spectroscope 200 due to too large pressing force.

In some embodiments of the present disclosure, the main body 310 is provided with a step 314 adapted to the beam splitter 200, and the beam splitter 200 is disposed on the step 314. In this embodiment, the beam splitter 200 can be mounted on the step structure 314 of the main body 310, so that the beam splitter 200 can be better fixed on the main body 310.

In some embodiments of the application, retaining member 400 includes a screw and a spring washer. The screw and the elastic pad are common parts, so that the replacement performance is good.

In some embodiments of the present application, the optical assembly further includes a fixing glue covering an end portion of the screw, the fixing glue configured to prevent the screw from being positionally displaced relative to the support bracket 100. In this embodiment, after the position and the angle of the adjusting assembly 300 relative to the supporting frame 100 are adjusted, the end of the screw may be coated with a fixing glue, a part of the fixing glue covers the end of the screw, and the other part of the fixing glue adheres to the surface of the supporting frame 100, so that the position and the angle of the adjusting assembly 300 can be prevented from being changed due to the loosening of the screw.

Embodiments of the second aspect of the present application propose a projection system comprising an optical assembly as in any of the embodiments of the first aspect.

According to the projection system in the embodiment of the present application, since it includes the optical component in any embodiment of the first aspect, it also has the advantages of any embodiment of the first aspect. Specifically, the adjusting assembly 300 is disposed in the receiving cavity of the supporting frame 100, a plurality of fixing holes 311 and a plurality of first through holes 110 are respectively disposed on the adjusting assembly 300 and the supporting frame 100, and the locking member 400 passes through the first through holes 110 to be connected with the fixing holes 311, so that the adjusting assembly 300 can be fixed in the receiving cavity of the supporting frame 100. In the assembling process, since the adjusting gap is formed between the locking member 400 and the first through hole 110, the position of the locking member 400 relative to the first through hole 110 of the supporting frame 100 is properly adjusted according to the angle requirement of the beam splitter 200 to meet the optical requirement of the optical assembly, and after the adjustment is completed, the locking member 400 can be completely fixed. In the embodiment, since the adjusting gap is formed between the locking member 400 and the first through hole 110, the position of the adjusting assembly 300 relative to the supporting frame 100 can be adjusted, and the optical assembly in the embodiment can adjust the position and the angle of the beam splitter 200 according to optical requirements, so that when the optical assembly is applied to a projection system, the projection quality of the projection system can be improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The embodiments of the present application are described in a related manner, and the same and similar parts among the embodiments can be referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above description is only for the preferred embodiment of the present application and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims (10)

1. An optical assembly for use in a projection system, the optical assembly comprising:

the supporting frame is provided with an accommodating cavity, and a plurality of first through holes are respectively formed in opposite side walls of the supporting frame;

a beam splitter;

the adjusting assembly is arranged in the accommodating cavity and comprises a main body part, the spectroscope is connected with the main body part, and the main body part is provided with a fixing hole matched with the first through hole;

the retaining member, the retaining member wears to locate first through-hole with the fixed orifices is connected, the retaining member with the adjustment clearance has between the first through-hole, in order to adjust the subassembly for the position of support frame.

2. The optical assembly according to claim 1, wherein the main body portion is provided with an adjustment shaft on the same side wall as the fixing hole, and the side wall of the support frame is provided with a second through hole adapted to the adjustment shaft, the second through hole being configured to adjust an adjustment window of the adjustment shaft.

3. The optical assembly according to claim 2, further comprising a plurality of limiting members, wherein the plurality of limiting members are fixedly connected to the supporting frame, and each of the plurality of limiting members is provided with an arc groove adapted to the adjusting shaft, and the adjusting shaft is clamped in the arc grooves of two of the limiting members.

4. The optical assembly of claim 2, wherein an axial end of the adjustment shaft is provided with a blind internal hexagonal hole.

5. The optical assembly of claim 1, wherein the adjustment assembly further comprises a pressure plate removably coupled to the body portion, the beam splitter being interposed between the pressure plate and the body portion.

6. The optical assembly of claim 5, wherein the pressing plate is provided with a plurality of pressing portions, and the plurality of pressing portions are attached to the beam splitter so as to tightly attach the beam splitter to the main body portion.

7. The optical assembly of claim 6, wherein the main body portion has a step structure adapted to the beam splitter, and the beam splitter is disposed on the step structure.

8. The optical assembly of claim 1, wherein the retaining member includes a screw and a resilient pad.

9. The optical assembly of claim 8, further comprising a securing glue covering an end of the screw, the securing glue configured to prevent the screw from being positionally displaced relative to the support bracket.

10. A projection system comprising the optical assembly of any one of claims 1 to 9.

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