CN104730817A - Projector and light uniform component adjustment module - Google Patents

Projector and light uniform component adjustment module Download PDF

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Publication number
CN104730817A
CN104730817A CN201310703870.0A CN201310703870A CN104730817A CN 104730817 A CN104730817 A CN 104730817A CN 201310703870 A CN201310703870 A CN 201310703870A CN 104730817 A CN104730817 A CN 104730817A
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CN
China
Prior art keywords
light
adjustment element
face
projector
support body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201310703870.0A
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Chinese (zh)
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CN104730817B (en
Inventor
林晅铤
陈家典
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Coretronic Corp
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Coretronic Corp
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Publication date
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Priority to CN201310703870.0A priority Critical patent/CN104730817B/en
Publication of CN104730817A publication Critical patent/CN104730817A/en
Application granted granted Critical
Publication of CN104730817B publication Critical patent/CN104730817B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/142—Adjusting of projection optics
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/208—Homogenising, shaping of the illumination light

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Endoscopes (AREA)
  • Projection Apparatus (AREA)
  • Lens Barrels (AREA)

Abstract

The invention discloses a projector and a light uniform component adjustment module. The projector comprises a light base, a light source, a light valve, a lens, the light uniform component adjustment module and light uniform components. The light source is arranged on the light base and used for providing illumination light beams. The light valve is arranged on the light base and used for converting the illumination light beams into image light beams. The lens is arranged on the light base and used for converting the image light beams into projecting light beams. The light uniform component adjustment module comprises a frame body and a first adjustment component. The frame body is arranged in the light base. The first adjustment component is locked on the light base in a threaded mode along a first axis, and the first adjustment component makes contact with the frame body. The first adjustment component is provided with a first end face and side faces. The first end face is perpendicular to the first axis. The side faces are not perpendicular to the first axis and used for driving the first adjustment component to rotate under stress and push the frame body. The light uniform components are fixed on the frame body and located on the transfer path of the illumination light beams, therefore, the operation of the light uniform adjustment module is convenient, and the production efficiency is improved.

Description

Projector and light equalization element adjusting module
Technical field
The invention relates to a kind of imaging device and adjusting module, and relate to a kind of projector and light equalization element adjusting module especially.
Background technology
Projector is a kind of display device in order to produce large scale picture.The image-forming principle of projector is that the illuminating bundle produced by light source module converts image strip to by light valve, then is projected on screen or metope by camera lens to form image by image strip.Along with the progress of shadow casting technique and the reduction of manufacturing cost, the use of projector is expanded to domestic use gradually from commercial use.
Generally speaking, projector has integration rod, the light luminance homogenising sent in order to make light source the shape of commutating optical beam.Owing to can produce tolerance in manufacture and assembling, therefore projector can configure the adjustment element adjusting integration rod position, makes beam projection to correct position.In order to adjust integration rod independently in all directions, the quantity of described adjustment element is generally multiple, and partial adjustment element is positioned at the small space of optical base and comparatively close with other component of projector (casing etc. as radiating fin or optical base), cause the inconvenience on adjustment element operation.Taiwan Patent numbering I308250 discloses and utilizes two adjustment elements respectively along the position of axially different adjustment optical integration pillar, and United States Patent (USP) 7540453B2 exposure utilizes eccentric screw to adjust the position of optical integration pillar, but still operates inconvenience during adjustment optical integration pillar.
Summary of the invention
The invention provides a kind of projector, the operation of its light equalization element adjusting module is comparatively convenient, and enhances productivity.
The invention provides a kind of light equalization element adjusting module, the operation of its adjustment element is comparatively convenient, and enhances productivity.
Other objects of the present invention and advantage can be further understood from the technical characteristic disclosed by the present invention.
For reaching one of above-mentioned or partly or entirely object or other objects, one embodiment of the invention provide a kind of projector, and it comprises optical base, light source, light valve, camera lens, light equalization element adjusting module and light equalization element.Light source is arranged at optical base, and for providing illuminating bundle.Light valve is arranged at optical base, and for converting illuminating bundle to image strip.Camera lens is arranged at optical base, and for converting image strip to projected light beam.Light equalization element adjusting module comprises support body and the first adjustment element.Support body is configured in optical base.First adjustment element along first axle screw lock in optical base and contact support body.First adjustment element has the first end face and side.First end face is perpendicular to first axle.Side is not orthogonal to first axle and for stressed and drive the first adjustment element rotate and promote support body.Light equalization element is fixed on support body and is positioned on the bang path of illuminating bundle.
For reaching one of above-mentioned or partly or entirely object or other objects, one embodiment of the invention provide a kind of light equalization element adjusting module, and it is for projector, and projector comprises optical base, light source and light equalization element, and light source is used for providing illuminating bundle.Light equalization element adjusting module comprises support body and the first adjustment element.Support body is configured in optical base, and wherein light equalization element is fixed on support body and is positioned on the bang path of illuminating bundle.First adjustment element along first axle screw lock in optical base and contact support body.First adjustment element has the first end face and side.First end face is perpendicular to first axle.Side is not orthogonal to first axle and for stressed and drive the first adjustment element rotate and promote support body.
Based on above-mentioned, embodiments of the invention at least have one of them advantage following, in the above embodiment of the present invention, first adjustment element is along first axle screw lock in optical base, and the first adjustment element is not by stressed perpendicular to the first end face of first axle and rotate, but rotated by the lateral forces being not orthogonal to first axle.Accordingly, when other component of projector too adjusts the first end face of element near first, the operation of the first adjustment element can not be therefore and to some extent inconvenient, user can force in the side of the first adjustment element and drive the first adjustment element, so that light equalization element is adjusted, and then enhance productivity.
For above-mentioned feature and advantage of the present invention can be become apparent, multiple embodiment cited below particularly, and coordinate accompanying drawing, be described in detail below.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the projector of one embodiment of the invention.
Fig. 2 is the partial perspective view of the projector of Fig. 1.
Fig. 3 is the partial component exploded view of the projector of Fig. 2.
Fig. 4 is the stereographic map of the light equalization element adjusting module of lid coverage diagram 2.
Fig. 5 is the schematic diagram of the first adjustment element of another embodiment of the present invention.
Fig. 6 is the schematic diagram of the first adjustment element of another embodiment of the present invention.
Embodiment
Aforementioned and other technology contents, feature and effect for the present invention, in the detailed description of following cooperation with reference to graphic multiple embodiments, can clearly present.The direction term mentioned in following examples, such as upper and lower, front, rear, left and right etc. are only the directions with reference to accompanying drawing.Therefore, the direction term of use is used to illustrate, but not is used for limiting the present invention.
Fig. 1 is the schematic diagram of the projector of one embodiment of the invention.Please refer to Fig. 1, the projector 100 of the present embodiment comprises optical base 110, light source 120, light valve 130, camera lens 140 and light equalization element 150.Light source 120 is arranged at optical base 110, and for providing illuminating bundle L1.Light valve 130 is arranged at optical base 110, and for converting illuminating bundle L1 to image strip L2.Camera lens 140 is arranged at optical base 110, and for converting image strip L2 to projected light beam L3.
Fig. 2 is the partial perspective view of the projector of Fig. 1.Fig. 3 is the partial component exploded view of the projector of Fig. 2.Please refer to Fig. 2 and Fig. 3, projector 100 also comprises light equalization element adjusting module 160, and the light equalization element adjusting module 160 of the present embodiment comprises support body 162, first and adjusts element 164 and the second adjustment element 166.Support body 162 is configured in optical base 110.Light equalization element 150 is such as integration rod (integration rod), and is fixed on support body 162 and is positioned on the bang path of the illuminating bundle L1 shown in Fig. 1.First adjustment element 164 along first axle A1 screw lock in the housing 112 of optical base 110 and contact support body 162, second adjust element 166 along vertical first axle A1 the second axis A2 screw lock in optical base 110 housing 112 and contact support body 162.The rotatable first adjustment element 164 of user, to make the first adjustment element 164 promote support body 162 along the first axial A1, and rotatable second adjustment element 166, promote support body 162 to make the second adjustment element 166 along the second axial A2.Thus, element 166 is adjusted, the angle of adjustable lay the grain equalization element 150 and position through the first adjustment element 164 and second.
In the present embodiment, the first adjustment element 164 comprises spiro-locking section 164a and rotating part 164b and has orthogonal first end face E1 and side S, side S around the first end face E1.Spiro-locking section 164a screw lock in optical base 110 housing 112 and contact support body 162, first end face E1 and side S be formed at rotating part 164b.First end face E1 is perpendicular to first axle A1, and side S is not orthogonal to first axle A1.Side S on the rotating part 164b of the first adjustment element 164 is used for stressed and drives the first adjustment element 164 rotate and promote support body 162.
Under above-mentioned configuration mode, the first adjustment element 164 is stressed and rotate not by its first end face E1 perpendicular to first axle A1, but it is stressed and rotate to be not orthogonal to the side S of first axle A1 by it.Accordingly, when other component (casing 114 of optical base 110 as shown in Figures 2 and 3) of projector 100 too adjusts the first end face E1 of element 164 near first, the operation of the first adjustment element 164 can not be therefore and to some extent inconvenient, user free-handly can force in the side S of the first adjustment element 164 and drive the first adjustment element 164, so that adjust light equalization element 150.
In the present embodiment, the second adjustment element 166 is such as screw and have the second end face E2, and the second end face E2 is perpendicular to the second axis A2 and for stressed and drive the second adjustment element 166 rotate and promote support body 162.Other component not being projected upward and comparatively machine 100 due to the second adjustment element 166 in figure stops or interferes, therefore user is convenient to utilize turnscrew to force in the second end face E2 to rotate the second adjustment element 166.
In the present embodiment, projector 100 also comprises radiating module 170, and radiating module 170 comprises the component such as radiating fin 172 and heat pipe 174.As shown in Figure 3, radiating module 170 and first adjusts the relative both sides that element 164 lays respectively at light equalization element 150, uses and avoids radiating module 170 interfere to some extent the first adjustment element 164 and stop and cause operational inconvenience.
Fig. 4 is the stereographic map of the light equalization element adjusting module of lid coverage diagram 2.Please refer to Fig. 4, the projector 100 of the present embodiment also comprises lid 180, and lid 180 is assembled in optical base 110 and is covered to small part light equalization element adjusting module 160.Lid 180 has opening 982, first adjustment element 164 and the second adjustment element 166 are all exposed by opening 982, to allow user be convenient to through the free-hand side S forcing in the first adjustment element 164 of opening 982 to rotate the first adjustment element 164, and be convenient to utilize turnscrew to force in the second end face E2 of the second adjustment element 166 to rotate the second adjustment element 166 through opening 982.The lid 180 of the present embodiment is such as designed to only mutually assemble with optical base 110 and do not fit together with light homogeneous package adjusting module 160, to make the assembling of lid 180 or dismantle comparatively easy and do not cause harmful effect to the contraposition accuracy of light equalization element 150.But lid 180, optical base 110, not as limit, in other embodiments, also can fit together with light equalization element adjusting module 160 by the present invention.
In the present embodiment, the rotating part 164b of the first adjustment element 164 is such as discoid, and the side S of rotating part 164b such as has concave convex texture for user's force; The external diameter of the rotating part 164b of the first adjustment element 164 is designed to the external diameter being greater than the second adjustment element 166, more particularly the external diameter of the first end face E1 of the first adjustment element 164 is designed to the external diameter of the second end face E2 being greater than the second adjustment element 166, side S like this and first axle A1 has larger distance, can produce enough large moment when then user forces in side S to rotate to drive the first adjustment element 164 smoothly, wherein the distance of side S and first axle A1 is such as greater than 10 millimeters.
The present invention is not limited the form of the rotating part of the first adjustment element, and it can be other suitable shape, is illustrated this below by way of graphic.
Fig. 5 is the schematic diagram of the first adjustment element of another embodiment of the present invention.Please refer to Fig. 5, the spiro-locking section 264a and above-mentioned first of the first adjustment element 264 of the present embodiment adjust the configuration of the spiro-locking section 164a of element 164 and the mode of action similar, repeat no more in this.Different being in, the first rotating part 264b adjusting element 264 that first adjustment element 264 and first adjusts element 164 is shaft-like but not discoid.First adjustment element 264 is for along first axle A1 ' screw lock in support body (not shown), rotating part 264b has orthogonal first end face E1 ' and side S ', and the first end face E1 ' is perpendicular to first axle A1 ' and side S ' is not orthogonal to first axle A1 '.Side S ' is for stressed and drive the first adjustment element 264 to rotate along first axle A1 '.
Fig. 6 is the schematic diagram of the first adjustment element of another embodiment of the present invention.Please refer to Fig. 6, the spiro-locking section 364a and above-mentioned first of the first adjustment element 364 of the present embodiment adjust the configuration of the spiro-locking section 164a of element 164 and the mode of action similar, repeat no more in this.Different being in, the first rotating part 364b adjusting element 364 that the first adjustment element 364 and first of the present embodiment adjusts element 164 is star-like but not discoid.First adjustment element 364 is for along first axle A1 " screw lock is in support body (not shown); rotating part 364b has orthogonal first end face E1 " and side S ", the first end face E1 " perpendicular to first axle A1 " and side S " be not orthogonal to first axle A1 ".Side S " for stressed and drive the first adjustment element 364 along first axle A1 " rotate.But, the side S ' in above-mentioned Fig. 5 and the side S in Fig. 6 " also can have concave convex texture further, for the convenient force of user.
In sum, embodiments of the invention at least have one of them advantage following, in the above embodiment of the present invention, first adjustment element is along first axle screw lock in optical base, and the first adjustment element is not by stressed perpendicular to the first end face of first axle and rotate, but rotated by the lateral forces being not orthogonal to first axle.Accordingly, when other component of projector too adjusts the first end face of element near first, the operation of the first adjustment element can not be therefore and to some extent inconvenient, user can force in the side of the first adjustment element and drive the first adjustment element, so that adjust light equalization element, so reach and enhance productivity, simplify manufacturing process and improve the effect such as yield.In addition, in the above embodiment of the present invention, the external diameter of the first end face of the first adjustment element is designed to the external diameter of the second end face being greater than the second adjustment element, the pivot center (i.e. above-mentioned first axle) making the side of the first adjustment element and first adjust element has larger distance, can produce enough large moment and rotate to drive the first adjustment element smoothly when allowing user force in side.
The foregoing is only preferred embodiment of the present invention, can not limit scope of the invention process with this, namely all simple equivalences done according to the claims in the present invention and summary of the invention change and modify, and all still remain within the scope of the patent.In addition, any embodiment of the present invention or claim must not reach whole object disclosed by the present invention or advantage or feature.In addition, summary part and title are only used to the use of auxiliary patent document retrieval, are not used for limiting interest field of the present invention.In addition, the first adjustment element mentioned in instructions, the second term such as adjustment element, first axle, the second axis, the first end face, the second end face etc., only in order to represent the title of assembly, be not used for the quantitative upper limit of limiter assembly or lower limit.
[symbol description]
100: projector
110: optical base
112: housing
114: casing
120: light source
130: light valve
140: camera lens
150: light equalization element
160: light equalization element adjusting module
162: support body
164,264,364: the first adjustment elements
164a, 264a, 364a: spiro-locking section
164b, 264b, 364b: rotating part
166: the second adjustment elements
170: radiating module
172: radiating fin
174: heat pipe
180: lid
982: opening
A1, A1 ', A1 ": first axle
A2: the second axis
E1, E1 ', E1 ": the first end face
E2: the second end face
L1: illuminating bundle
L2: image strip
L3: projected light beam
S, S ', S ": side

Claims (19)

1. a projector, comprising:
Optical base;
Light source, is arranged at this optical base, and for providing illuminating bundle;
Light valve, is arranged at this optical base, and for converting this illuminating bundle to image strip;
Camera lens, is arranged at this optical base, and for converting this image strip to projected light beam;
Light equalization element adjusting module, comprise support body and the first adjustment element, this support body is configured in this optical base, this the first adjustment element contacts this support body along first axle screw lock in this optical base, wherein this first adjustment element has the first end face and side, this first end face perpendicular to this first axle, this side be not orthogonal to this first axle and for stressed and drive this first adjustment element rotate and promote this support body; And
Light equalization element, is fixed on this support body and is positioned on the bang path of this illuminating bundle.
2. the projector as described in claim 1, it is characterized in that, this side is around this first end face.
3. the projector as described in claim 1, it is characterized in that, this light equalization element adjusting module also comprises the second adjustment element, and this second adjustment element is along the second axis screw lock in this optical base and contact this support body, and this second axes normal is in this first axle.
4. the projector as described in claim 3, is characterized in that, this second adjustment element has the second end face, and this second end face is perpendicular to this second axis and for stressed and drive this second adjustment element rotate and promote this support body.
5. the projector as described in claim 4, is characterized in that, external diameter of this first end face of this first adjustment element is greater than the external diameter of this second end face of this second adjustment element.
6. the projector as described in claim 3, it is characterized in that, also comprise lid, wherein this lid is assembled in this optical base and is covered to this light equalization element adjusting module of small part, this lid has opening, and this first adjustment element and this second adjustment element are all exposed by this opening.
7. the projector as described in claim 1, it is characterized in that, also comprise lid, wherein this lid is only mutually assembled with this optical base and is covered to this light equalization element adjusting module of small part.
8. the projector as described in claim 1, is characterized in that, this first adjustment element comprises spiro-locking section and rotating part, and this spiro-locking section screw lock is in this optical base and contact this support body, and this first end face and this side are formed at this rotating part.
9. the projector as described in claim 1, it is characterized in that, the distance of this side and this first axle is greater than 10 millimeters.
10. the projector as described in claim 1, it is characterized in that, this lateral vertical is in this first end face.
11. projectors as described in claim 1, is characterized in that, also comprise radiating module, and this radiating module first adjusts the relative both sides that element lays respectively at this light equalization element with this.
12. 1 kinds of light equalization element adjusting modules, for projector, this projector comprises optical base, light source and light equalization element, and this light source is used for providing illuminating bundle, and this light equalization element adjusting module comprises:
Support body, is configured in this optical base, and wherein this light equalization element is fixed on this support body and is positioned on the bang path of this illuminating bundle; And
First adjustment element, contact this support body along first axle screw lock in this optical base, wherein this first adjustment element has the first end face and side, this first end face perpendicular to this first axle, this side be not orthogonal to this first axle and for stressed and drive this first adjustment element rotate and promote this support body.
13. light equalization element adjusting modules as described in claim 12, it is characterized in that, this side is around this first end face.
14. light equalization element adjusting modules as described in claim 12, is characterized in that, also comprise the second adjustment element, and wherein this second adjustment element contacts this support body along the second axis screw lock in this optical base, and this second axes normal is in this first axle.
15. light equalization element adjusting modules as described in claim 14, it is characterized in that, this second adjustment element has the second end face, and this second end face is perpendicular to this second axis and for stressed and drive this second adjustment element rotate and promote this support body.
16. light equalization element adjusting modules as described in claim 15, it is characterized in that, external diameter of this first end face of this first adjustment element is greater than the external diameter of this second end face of this second adjustment element.
17. light equalization element adjusting modules as described in claim 12, it is characterized in that, this first adjustment element comprises spiro-locking section and rotating part, and this spiro-locking section screw lock is in this optical base and contact this support body, and this first end face and this side are formed at this rotating part.
18. light equalization element adjusting modules as described in claim 12, it is characterized in that, the distance of this side and this first axle is greater than 10 millimeters.
19. light equalization element adjusting modules as described in claim 12, it is characterized in that, this lateral vertical is in this first end face.
CN201310703870.0A 2013-12-19 2013-12-19 Scialyscope and light equalization element adjusting module Expired - Fee Related CN104730817B (en)

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Application Number Priority Date Filing Date Title
CN201310703870.0A CN104730817B (en) 2013-12-19 2013-12-19 Scialyscope and light equalization element adjusting module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310703870.0A CN104730817B (en) 2013-12-19 2013-12-19 Scialyscope and light equalization element adjusting module

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CN104730817A true CN104730817A (en) 2015-06-24
CN104730817B CN104730817B (en) 2016-10-05

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106559630A (en) * 2015-09-30 2017-04-05 中强光电股份有限公司 Projection arrangement and data access control module
WO2017147173A1 (en) * 2016-02-22 2017-08-31 Navdy, Inc. High-precision focus mechanism for a pico projector module
CN112213903A (en) * 2019-07-11 2021-01-12 中强光电股份有限公司 Projector and lens adjusting module

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TW200846815A (en) * 2007-05-30 2008-12-01 Coretronic Corp Adjusting device of integral column
US20090001228A1 (en) * 2007-06-26 2009-01-01 Young Optics Inc. Position adjusting device
US20090015802A1 (en) * 2007-07-09 2009-01-15 Coretronic Corporation Adjusting mechanism of light integration rod module, optical engine and projection apparatus
US20090262315A1 (en) * 2008-04-18 2009-10-22 Coretronic Corporation Projector and module of integration rod
TW200951610A (en) * 2008-06-03 2009-12-16 Coretronic Corp Positioning device for integrator rod
CN102540662A (en) * 2010-12-27 2012-07-04 扬明光学股份有限公司 Projector and light uniform element adjusting module

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200613883A (en) * 2004-10-29 2006-05-01 Young Optics Inc Device for fastening/adjusting position of integration rod of projection optical system
TW200846815A (en) * 2007-05-30 2008-12-01 Coretronic Corp Adjusting device of integral column
US20090001228A1 (en) * 2007-06-26 2009-01-01 Young Optics Inc. Position adjusting device
US20090015802A1 (en) * 2007-07-09 2009-01-15 Coretronic Corporation Adjusting mechanism of light integration rod module, optical engine and projection apparatus
US20090262315A1 (en) * 2008-04-18 2009-10-22 Coretronic Corporation Projector and module of integration rod
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CN102540662A (en) * 2010-12-27 2012-07-04 扬明光学股份有限公司 Projector and light uniform element adjusting module

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106559630A (en) * 2015-09-30 2017-04-05 中强光电股份有限公司 Projection arrangement and data access control module
CN106559630B (en) * 2015-09-30 2019-10-01 中强光电股份有限公司 Projection arrangement and data access control module
WO2017147173A1 (en) * 2016-02-22 2017-08-31 Navdy, Inc. High-precision focus mechanism for a pico projector module
CN112213903A (en) * 2019-07-11 2021-01-12 中强光电股份有限公司 Projector and lens adjusting module
US11249376B2 (en) 2019-07-11 2022-02-15 Coretronic Corporation Projector and lens adjusting module

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