CN209690692U - Lens module and projection device - Google Patents
Lens module and projection device Download PDFInfo
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- CN209690692U CN209690692U CN201920476210.6U CN201920476210U CN209690692U CN 209690692 U CN209690692 U CN 209690692U CN 201920476210 U CN201920476210 U CN 201920476210U CN 209690692 U CN209690692 U CN 209690692U
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- bearing seat
- frame
- lens
- optical axis
- lens module
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Abstract
The utility model provides a kind of lens module, and the lens module includes bearing seat, frame and optical lens.Bearing seat has inner surface, and inner surface has contact surface, and guide channel is formed on inner surface.The contact surface of contact therewith bearing seat and there is guide bar, guide bar is configured in guide channel.Optical lens is configured in frame and has optical axis.When guide bar moves in guide channel, frame on bearing seat in rotating centered on optical axis, and frame and optical lens are moved in the direction on bearing seat along optical axis.The utility model provides a kind of projection device, including lighting system, light valve and projection lens.Lighting system includes light supply apparatus, said lens module and Wavelength converter.The focal position that the lens module and projection device of the utility model can pass through the light beam of optical lens is adjusted on appropriate location, has the advantages that improve the projection quality of projection device.
Description
Technical field
The utility model is conveniently adjusted beam focusing position about a kind of lens module and projection device, especially with respect to one kind
Lens module and projection device including lens module.
Background technique
In projection device, the optical lens of light focusing for generating light source to colour wheel between colour wheel at a distance from be
Very important parameter crucially influences projection quality.The prior art is using in screw collocation spring locking lens module
Optical lens, the elastic of locking can promote optical lens to some extent, with adjust optical lens between colour wheel at a distance from (adjust
The focal position of the whole light beam through optical lens).However rotation, extruding of the screw during locking will cause optical lens
The deviation of angle is arranged in mirror, and projection quality is caused to decline.In addition, optical lens is installed in ring in the lens module of the prior art
On shape frame, annular frame is installed on carrier, and annular frame is bonded carrier completely.Since tolerance control is not easy, and hold
Contact surface out-of-flatness between carrier and annular frame, so that adjustment is more tired across the focal position of the light beam of optical lens
It is difficult.
This " background technique " paragraph is used only to help to understand the content of the present invention, therefore institute is public in " background technique "
The content opened may include some known technologies without constituting road known to those skilled in the art.In addition, in " background technique "
Disclosed in content do not represent the content or the utility model one or more embodiment problem to be solved,
It does not represent and has been readily known to those persons skilled in the art or has recognized before the present utility model application.
Utility model content
The utility model provides a kind of lens module, can be conveniently adjusted the focal position of light beam, avoids the throwing of projection device
Shadow quality decline.
In addition the utility model provides a kind of projection device, lens module can be conveniently adjusted the focal position of light beam, keep away
Exempt from projection quality decline.
The other objects and advantages of the utility model can be obtained from technical characteristic disclosed in the utility model into one
The understanding of step.
It is to reach above-mentioned one or part or all of purpose or other purposes, lens module provided by the utility model
Including bearing seat, frame and optical lens.Bearing seat has inner surface, and inner surface has contact surface, and is formed on inner surface
Guide channel.Contact therewith contact surface and there is guide bar, guide bar is configured in guide channel.Optical lens be configured on frame and
With optical axis.When guide bar moves in guide channel, frame centered on optical axis in being rotated on bearing seat, and frame and optical lens
Mirror is moved in the direction on bearing seat along optical axis.
It is to reach above-mentioned one or part or all of purpose or other purposes, projection device provided by the utility model
Including lighting system, light valve and projection lens, lighting system can provide illuminating bundle, and light valve is configured at the transmitting of illuminating bundle
On path, illuminating bundle is converted into image strip, projection lens is configured on the transmission path of image strip.Lighting system
Including light supply apparatus, Wavelength converter and above-mentioned lens module.Light supply apparatus can provide excitation beam.Lens module configuration
In on the transmission path of excitation beam.Wavelength converter is configured on the transmission path of excitation beam and can will pass through optical lens
The excitation beam of mirror is converted into commutating optical beam, and illuminating bundle includes excitation beam and commutating optical beam.
In the lens module and projection device of the utility model, the guide bar of frame can be on the inner surface of bearing seat
It is moved in guide channel, so that frame (optical lens is configured on frame) can be centered on the optical axis of optical lens on bearing seat
Rotation, and move frame and optical lens in the direction on bearing seat together along optical axis, so as to pass through optical lens
The focal position of the light beam of mirror is adjusted to appropriate location, has the advantages that improve the projection quality of projection device.
For the above and other objects, features and advantages of the utility model can be clearer and more comprehensible, preferred reality is cited below particularly
Example is applied, and cooperates attached drawing, detailed description are as follows.
Detailed description of the invention
Fig. 1 is the appearance diagram of the lens module of an embodiment of the present invention；
Fig. 2 is the appearance diagram of another angle of the lens module in Fig. 1；
Fig. 3 is the perspective view of the explosion of the lens module in Fig. 1；
Fig. 4 is the forward sight diagrammatic cross-section of the lens module in Fig. 1；
Fig. 5 is the lower view diagrammatic cross-section of the lens module in Fig. 1；
Fig. 6 is the appearance diagram of the lens module of another embodiment of the utility model；
Fig. 7 is the perspective view of the explosion of the lens module in Fig. 6；And
Fig. 8 is the schematic block diagrams of the projection device of an embodiment of the present invention.
Specific embodiment
Aforementioned and other technology contents, feature and effect in relation to the utility model refer to the one of attached drawing in following cooperation
In the detailed description of preferred embodiment, can clearly it present.The direction term being previously mentioned in following embodiment, such as: upper,
Under, it is left and right, front or rear etc., be only the direction with reference to attached drawing.Therefore, the direction term used is for illustrating not to be used to limit
The utility model processed.
Fig. 1 is the appearance diagram of the lens module of an embodiment of the present invention.Fig. 2 is the lens module in Fig. 1
The appearance diagram of another angle.Fig. 3 is the perspective view of the explosion of the lens module in Fig. 1.Fig. 4 is the lens module in Fig. 1
Forward sight diagrammatic cross-section.Fig. 5 is the lower view diagrammatic cross-section of the lens module in Fig. 1.Please refer to Fig. 1 to 5, the present embodiment it is saturating
Mirror module 100 includes bearing seat 110, frame 120 and optical lens 130.Bearing seat 110 has inner surface 111, inner surface
111 have contact surface 112, and guide channel 113 is formed on inner surface 111.Frame 120 contacts with contact surface 112 and has guiding
Bar 121, guide bar 121 are configured in guide channel 113.Optical lens 130 is configured on frame 120 and has optical axis 131.Interior table
Face 111 extends around optical axis 131.When guide bar 121 moves in guide channel 113, frame 120 centered on optical axis 131 in
It is rotated on bearing seat 110, and frame 120 and optical lens 130 are moved in the direction on bearing seat 110 along optical axis 131, so that wearing
The focal position for crossing the light beam of optical lens 130 changes.In the present embodiment, optical lens 130 can be for example condenser lens, but
The utility model is not limited to this, and the quantity of optical lens 130 can be single one or more, such as two optical lenses
130a,130b.In addition, frame 120 can in a ring, the shape phase of the outer peripheral surface 122 of the shape and frame 120 of contact surface 112
Match.In the present embodiment, contact surface 112 is arc-shaped and the outer peripheral surface 122 of frame 120 is arc-shaped, but the utility model does not limit to
In this.
In one embodiment, lens module 100 may also include elastic slice 140, and elastic slice 140 is configured on bearing seat 110, and use
To contact frame 120.Elastic slice 140 can be such that frame 120 is closely against on contact surface 112 by the elastic force of itself, so that frame 120 is steady
Admittedly be installed on contact surface 112.In the present embodiment, elastic slice 140 has free end 141 and fixing end 142, free end 141
It can be resisted against on frame 120, specifically, the free end 141 of elastic slice 140 is resisted against on the outer peripheral surface 122 of frame 120.It is fixed
End 142 is securable on bearing seat 110.However, in other embodiments, free end 141 can be resisted against the interior table of bearing seat 110
On face 111, fixing end 142 is securable on frame 120.In the embodiment shown in fig. 3, the fixing end 142 of elastic slice 140 can be with
As the fixing piece 150 of screw is locked on bearing seat 110.In addition, the quantity of elastic slice 140 can be one or more, contact surface 112
Quantity can for one or more.In the present embodiment, the quantity of elastic slice 140 is identical as the quantity of contact surface 112, such as elastic slice
140 and contact surface 112 be all two, and two elastic slices 140 are respectively to contact the opposite sides of frame 120.But this is practical new
Type is not limited to this.In other embodiments, the quantity of elastic slice 140 and the quantity of contact surface 112 can also be different, such as elastic slice
140 be one, and contact surface 112 is two.In addition, in the present embodiment, guide channel 113 is configured between two contact surfaces 112,
But the utility model is not limited to this.
In one embodiment, bearing seat 110 can also have first side 114 and a second side 115, first side 114 and
Second side 115 is arranged along optical axis 131.Inner surface 111 is connected between first side 114 and second side 115, and guide channel
113 are obliquely extended between first side 114 and second side 115, in other words, the extending direction and optical axis of guide channel 113
131 out of plumb.In the present embodiment, guide channel 113 has first end 1131, the second end 1132 and linkage section 1133, even
Connect the oblique connection first end 1131 of section 1133 and the second end 1132, first end 1131 is than the second end 1132 closer to
One side 114, and the second end 1132 than first end 1131 closer to second side 115.When guide bar 121 is in guide channel
When mobile towards the second end 1132 via linkage section 1133 by first end 1131 in 113, frame 120 is centered on optical axis 131
Rotated on bearing seat 110, and frame 120 and optical lens 130 along optical axis 131 on bearing seat 110 by 114 court of first side
Second side 115 is mobile.Conversely, when guide bar 121 in guide channel 113 by the second end 1132 via linkage section 1133 towards the
When one end 1131 is mobile, frame 120 is rotated centered on optical axis 131 on bearing seat 110, and frame 120 and optical lens
130 along optical axis 131 in being moved by second side 115 towards first side 114 on bearing seat 110.In addition, in the present embodiment, the
One end 1131 on optical axis 131 incident point and the second end 1132 in the distance between incident point on optical axis 131 D for example
It can be 0.6 millimeter (mm) to 0.7mm, but the utility model is not limited to this.
In one embodiment, frame 120 can also have adjustment bar 123.In the present embodiment, guide bar 121 can be towards separate
The first direction of optical axis 131 extends, and adjustment bar 123 can extend towards the second direction far from optical axis 131.First direction and second party
To difference.When adjustment bar 123 is pushed, guide bar 121 is between the first end 1131 and the second end 1132 of guide channel 113
Mobile, frame 120 is rotated centered on optical axis 131 on bearing seat 110, and frame 120 and optical lens 130 are in bearing seat
It moves in direction on 110 along optical axis 131.In other words, user can adjust bar 123 by pushing, to adjust across optical lens
The focal position of 130 light beam.Bar 123 is adjusted compared to known screw, it is easier to apply torque to rotate frame 120, be easier to
In adjustment.In addition, in the present embodiment, bearing seat 110 can also have outer surface 116, and it is remote that outer surface 116 is located at inner surface 111
Side from optical axis 131, the bearing seat also have adjustment opening 117,117 connection inner surface 111 of adjustment opening and outer surface
116, and adjust bar 123 and be configured in adjustment opening 117.Guide channel 113 can be recessed from 111 exterior surface 116 of inner surface.In
In one embodiment, guide channel 113 can be to be not perforated, or the perforation through inner surface 111 and outer surface 116.Specifically, at this
In embodiment, guide channel 113 can be the perforation for being formed on inner surface 111 and running through outer surface 116.However, in other implementations
In example, guide channel 113 can be to be formed on inner surface 111 and do not run through the not perforated of outer surface 116.When guide channel 113 is non-
When perforation, by the setting of adjustment bar 123, position of the adjustment guide bar 121 in guide channel 113 can be facilitated, make frame 120 and
Optical lens 130 is moved in the direction on bearing seat 110 along optical axis 131, to adjust the focusing of the light beam across optical lens 130
Position.When guide channel 113 is perforation, position of the guide bar 121 in guide channel 113 can be directly adjusted according to demand, or
Person also can adjust position of the guide bar 121 in guide channel 113 via adjustment bar 123, to adjust across optical lens 130
The focal position of light beam.Therefore, it is the setting of perforation by the setting and/or guide channel 113 of adjustment bar 123, is all convenient to
Adjust the focal position of the light beam across optical lens 130.
In the present embodiment, adjustment bar 123 extends to except outer surface 116 via adjustment opening 117, that is to say, that adjusts
Whole bar 123 protrudes from outer surface 116, whereby can easily by adjustment bar 123 adjust optical lens position, with adjustment across
The focal position of the light beam of optical lens.In other embodiments, guide channel 113 be perforation and lens module 100 do not have
In the case where adjusting bar 123, the focal position across the light beam of optical lens 130 can led by direct adjustment guide bar 121
Position in approaching channel 113 and be adjusted, in other words, guide bar 121 can be used as adjustment bar 123 and use.
In the lens module 100 of the present embodiment, due to being formed with guide channel 113, frame on the inner surface 111 of bearing seat 110
Frame 120 has the guide bar 121 being configured in guide channel 113.Guide channel 113 is in the first side 114 of bearing seat 110 and second
It is obliquely extended between side 115.When frame 120 is configured to the contact surface 112 of contact inner surface 111, by adjustment guide bar
121 position in guide channel 113 can make frame 120 (optical lens 130 is configured on frame 120) with optical lens 130
Optical axis 131 centered on rotated on bearing seat 110, and make frame 120 and optical lens 130 in one on bearing seat 110 simultaneously
It is moved with along the direction of optical axis 131, for example, frame 120 can be pushed forward or backward, so that being fixed on the optics of frame 120
Lens 130 change at a distance from Wavelength converter, to reach the focal position for adjusting the light beam across optical lens 130
Effect.It can be seen that the focusing of the light beam of optical lens 130 can be passed through by the cooperation of guide channel 113 and guide bar 121
It is adjusted to location-appropriate on Wavelength converter (such as colour wheel), and then the projection quality of projection device is avoided to decline.
In the lens module 100 of the present embodiment, optical lens 130 is configured at the contact surface of bearing seat 110 via frame 120
After on 112, frame 120 is resisted against on the contact surface 112 of inner surface 111 by the elastic force of elastic slice 140.Frame 120 is not with spiral shell
The locking force of silk locks on bearing seat 110.In the embodiments of the present invention, the fixation of frame does not use screw, avoids
The problem of being displaced because of optical lens 130 caused by rotating, squeezing and frame 120 with respect to bearing seat 110 during screw locking, also
It can effectively reduce cost.User can select the lesser elastic slice 140 of coefficient of elasticity according to demand, or according to demand adjustment to lock
Gu the fixing piece 150 of elastic slice 140 is elastic, to change the elastic force that elastic slice 140 applies frame 120, and then change in adjustment light
The frictional force between frame 120 and contact surface 112 is resulted from during lens 130, and it is excessively loose also to can avoid lens module 100
It is de- or urgent, so that frame 120 is positively retained on contact surface 112 and can relative contact during adjusting optical lens 130
112 rotations and movement.Contact/fitting area size between frame 120 and inner surface 111, the i.e. area of contact surface 112,
It need to be enough the fixed effect of support elastic sheet 140, that is to say, that the area of contact surface 112 can suitably reduce, and can effectively change whereby
The problem of being shaken in kind assembling process.
Fig. 6 is the appearance diagram of the lens module of another embodiment of the utility model.Fig. 7 is the lens module in Fig. 6
Perspective view of the explosion.Please refer to Fig. 6 and 7, in the lens module 100 of the present embodiment, bearing seat 110 further includes pedestal 110a and top
Cover 110b, top cover 110b is configured on pedestal 110a, the inner surface of top cover 110b and the inner surface of pedestal 110a connect to be formed in
Surface 111, and the outer surface of top cover 110b and the outer surface of pedestal 110a connect to form outer surface 116.Contact surface 112 can be bottom
A part of the inner surface of seat 110a, and guide channel 113 is formed on pedestal 110a.Frame 120 is configured at optical lens 130
Between pedestal 110a and top cover 110b.Top cover 110b is locked on pedestal 110a with fixing piece 150, and the fixing end of elastic slice 140
142 can be connected to top cover 110b.Furthermore, it is understood that in the present embodiment, elastic slice 140 is integrally formed with top cover 110b, but this
Utility model is not limited to this.In other embodiments, elastic slice 140 and top cover 110b are also possible to mutually independent component, bullet
The fixing end 142 of piece 140 can secure to pedestal 110a or pedestal 110a with fixing piece 150 or another fixing piece.In addition, in this reality
It applies in example, guide channel 113 is configured in the bottom of pedestal 110a.When guide channel 113 is perforation, guide channel 113 can run through bottom
The bottom of seat 110a, adjustment opening 117 can be formed on top cover 110b, but the utility model is not limited to this.In other implementations
In example, guide channel 113 can also be configured at the side of top cover 110b or pedestal 110a, and adjustment opening 117 can also be configured at bottom
On seat 110a, or it is configured on the side of top cover 110b or pedestal 110a.
Fig. 8 is the schematic block diagrams of the projection device of an embodiment of the present invention.Please refer to Fig. 1 and 8, the present embodiment
Projection device (such as projector) 200, including lighting system 210, light valve 220 and projection lens 230, lighting system 210
It can provide illuminating bundle L1, light valve 220 is configured on the transmission path of illuminating bundle L1, and illuminating bundle L1 is converted into image
Light beam L2, projection lens 230 are configured on the transmission path of image strip L2, and image strip L2 is projected to screen 300, into
And image frame is formed on screen 300.Light valve 220 can be perforation light-valve or optical valve in reflection type, wherein penetration light
Valve can be penetration liquid crystal display panel, and optical valve in reflection type 220 can be digital micromirror elements (digital micro-mirror
Device, DMD) or silica-based liquid crystal panel (liquid crystal on silicon panel, LCOS panel), but this reality
With novel not limited to this.Combination of the projection lens 230 for example including one or more optical lenses with diopter, such as
Including each of the non-planar lens such as biconcave lens, biconvex lens, concave-convex lens, meniscus, plano-convex lens and plano-concave lens
Kind combination.In one embodiment, projection lens 230 also may include planar wave lens.
In one embodiment, lighting system 210 includes light supply apparatus 211, lens module 100 and Wavelength converter 212.
Light supply apparatus 211 can provide excitation beam Le.Lens module 100 and Wavelength converter 212 are configured at the biography of excitation beam Le
It passs on path.Wavelength converter 212 is the excitation beam Le of the optical lens 130 by lens module 100 to be converted into
Commutating optical beam Lt, and allow excitation beam Le to pass through according to timing.Illuminating bundle L1 includes excitation beam Le and commutating optical beam Lt.Light source
Device 211 is, for example, the diode (led) module including light emitting diode or laser diode (Laser Diode, LD) either by more
Matrix composed by piece diode (led) module, but the utility model is not limited to this.Wavelength converter 212 is, for example, wavelength convert
Wheel, but the utility model is not limited to this.In addition, lighting system 210 may also include other optical elements, such as: light combination element,
Filter wheel (Filter wheel) and light uniformization element etc., so that illuminating bundle L1 is transferred to light valve (Light Valve)
220.Although Fig. 8 is by taking the lens module 100 of Fig. 1 as an example, lens module 100 is alternatively at the lens of any of the above-described embodiment
Module 100.
In conclusion in the lens module and projection device of the utility model, by the guide bar of adjustment frame in Cheng Yu
The position in guide channel on the inner surface of bearing seat can make frame centered on the optical axis of optical lens in revolving on bearing seat
Turn, and move frame and optical lens in the direction on bearing seat together along optical axis, to pass through optical lens
The focal position of light beam is appropriately adapted on Wavelength converter, has the advantages that improve the projection quality of projection device.
The above, the only preferred embodiment of the utility model cannot limit the utility model implementation with this
Range, i.e., it is all according to simple equivalence changes made by the utility model claims book and utility model specification content with
Modification all still belongs in the range of the utility model patent covers.In addition, any embodiment or claim of the utility model are not
Whole purposes or advantage or feature disclosed in the utility model must be reached.In addition, abstract of description and utility model title are only
It is not to be used to limit the interest field of the utility model for assisting patent document retrieval to be used.In addition, this specification or power
The terms such as " first " that refers in sharp claim, " second " are only to name the title or the different realities of difference of element (element)
Example or range are applied, and is not used to the quantitative upper limit of restriction element or lower limit.
Claims (22)
1. a kind of lens module, which is characterized in that including bearing seat, frame and optical lens, in which:
The bearing seat has inner surface, and the inner surface has contact surface, and forms guide channel on the inner surface；
Contact surface described in the contact therewith and there is guide bar, the guide bar is configured in the guide channel；
The optical lens is configured on the frame and has optical axis；
When the guide bar moves in the guide channel, the frame is revolved centered on the optical axis on the bearing seat
Turn, and the frame and the optical lens are moved in the direction on the bearing seat along the optical axis.
2. lens module according to claim 1, which is characterized in that the lens module further includes an at least elastic slice, institute
An at least elastic slice is stated to be configured on the bearing seat and to contact the frame.
3. lens module according to claim 2, which is characterized in that each of an at least elastic slice is with free end
And fixing end, the fixing end are configured on the bearing seat, and the free end is against on said frame.
4. lens module according to claim 1, which is characterized in that the bearing seat also has along optical axis arrangement
First side and second side, the inner surface are connected between the first side and the second side, the guide channel
It is obliquely extended between the first side and the second side.
5. lens module according to claim 1, which is characterized in that first party of the guide bar towards the separate optical axis
To extension.
6. lens module according to claim 5, which is characterized in that the frame also has adjustment bar, the adjustment bar
Extend towards the second direction far from the optical axis, and the second direction is different from the first direction.
7. lens module according to claim 6, which is characterized in that the bearing seat also has outer surface, the appearance
Face is located at side of the inner surface far from the optical axis, and also there is the bearing seat adjustment to be open, wherein the adjustment is opened
Mouth connects the inner surface and the outer surface, and the adjustment bar is configured in the adjustment opening.
8. lens module according to claim 1, which is characterized in that the bearing seat also has outer surface, the appearance
Face is located at side of the inner surface far from the optical axis, and the guide channel is from the inner surface to the outer surface depressions.
9. lens module according to claim 8, which is characterized in that the guide channel is through the inner surface and described
The perforation of outer surface.
10. lens module according to claim 1, which is characterized in that the bearing seat further includes pedestal and top cover, described
Top cover is configured on the pedestal, and the inner surface includes the inner surface of the top cover and the inner surface of the pedestal, described to connect
Contacting surface is a part of the inner surface of the pedestal and the guide channel is formed on the pedestal, the frame and the optics
Lens are configured between the pedestal and the top cover.
11. lens module according to claim 1, which is characterized in that the guide channel has first end, the second end
And linkage section, the linkage section oblique connection first end and the second end, and the first end is in the light
Incident point on axis and the second end are 0.6 millimeter to 0.7 millimeter in the distance between the incident point on the optical axis.
12. a kind of projection device, which is characterized in that the projection device includes lighting system, light valve and projection lens, described
Lighting system provides illuminating bundle, and the light valve is configured on the transmission path of the illuminating bundle, by the illuminating bundle
It is converted into image strip, the projection lens is configured on the transmission path of the image strip, wherein the lighting system packet
Include light supply apparatus, lens module and Wavelength converter, in which:
The light supply apparatus provides excitation beam；
The lens module is configured on the transmission path of the excitation beam, the lens module include bearing seat, frame with
And optical lens, the bearing seat have inner surface, the inner surface has contact surface, and guiding is formed on the inner surface
Slot, contact surface described in the contact therewith and has guide bar, and the guide bar is configured in the guide channel, the optical lens
Mirror is configured on the frame and has optical axis, and when the guide bar moves in the guide channel, the frame is with the light
Rotated centered on axis on the bearing seat, and the frame and the optical lens on the bearing seat along the optical axis
Direction is mobile；
The Wavelength converter is configured on the transmission path of the excitation beam, and will pass through the optical lens
The excitation beam is converted into commutating optical beam, and the illuminating bundle includes the excitation beam and the commutating optical beam.
13. projection device according to claim 12, which is characterized in that the lens module further includes an at least elastic slice,
An at least elastic slice is configured on the bearing seat and to contact the frame.
14. projection device according to claim 13, which is characterized in that each of an at least elastic slice has freely
End and fixing end, the fixing end are configured on the bearing seat, and the free end is against on said frame.
15. projection device according to claim 12, which is characterized in that the bearing seat also has to be arranged along the optical axis
First side and second side, the inner surface is connected between the first side and the second side, the guiding
Slot is obliquely extended between the first side and the second side.
16. projection device according to claim 12, which is characterized in that the guide bar towards far from the optical axis first
Direction extends.
17. projection device according to claim 16, which is characterized in that the frame also has adjustment bar, the adjustment
Bar extends towards the second direction far from the optical axis, and the second direction is different from the first direction.
18. projection device as claimed in claim 17, which is characterized in that the bearing seat also has outer surface, the appearance
Face is located at side of the inner surface far from the optical axis, and also there is the bearing seat adjustment to be open, wherein the adjustment is opened
Mouth connects the inner surface and the outer surface, and the adjustment bar is configured in the adjustment opening.
19. projection device according to claim 12, which is characterized in that the bearing seat also has outer surface, described outer
Surface is located at side of the inner surface far from the optical axis, and the guide channel is recessed from the inner surface to the outer surface
It falls into.
20. projection device according to claim 19, which is characterized in that the guide channel is through the inner surface and institute
State the perforation of outer surface.
21. projection device according to claim 12, which is characterized in that the bearing seat further includes pedestal and top cover, institute
It states top cover to be configured on the pedestal, the inner surface includes the inner surface of the top cover and the inner surface of the pedestal, described
Contact surface be the pedestal inner surface a part and and the guide channel be formed on the pedestal, the frame with it is described
Optical lens is configured between the pedestal and the top cover.
22. projection device according to claim 12, which is characterized in that the guide channel has first end, second end
Portion and linkage section, the linkage section oblique connection first end and the second end, and the first end is in described
Incident point on optical axis and the second end are 0.6 millimeter to 0.7 millimeter in the distance between the incident point on the optical axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920476210.6U CN209690692U (en) | 2019-04-10 | 2019-04-10 | Lens module and projection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920476210.6U CN209690692U (en) | 2019-04-10 | 2019-04-10 | Lens module and projection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209690692U true CN209690692U (en) | 2019-11-26 |
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ID=68607609
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920476210.6U Active CN209690692U (en) | 2019-04-10 | 2019-04-10 | Lens module and projection device |
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| CN (1) | CN209690692U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111812924A (en) * | 2019-04-10 | 2020-10-23 | 中强光电股份有限公司 | Lens module and projection equipment |
-
2019
- 2019-04-10 CN CN201920476210.6U patent/CN209690692U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111812924A (en) * | 2019-04-10 | 2020-10-23 | 中强光电股份有限公司 | Lens module and projection equipment |
| US11294144B2 (en) | 2019-04-10 | 2022-04-05 | Coretronic Corporation | Lens module and projection apparatus |
| CN111812924B (en) * | 2019-04-10 | 2022-06-14 | 中强光电股份有限公司 | Lens module and projection equipment |
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