CN104730817B - Projector and light uniform element adjustment module - Google Patents

Abstract

The present invention discloses a projector and a light uniformity element adjustment module. The projector includes an optical engine base, a light source, a light valve, a lens, a light uniformity element adjustment module and a light uniformity element. The light source is arranged on the optical engine base and is used to provide an illumination beam. The light valve is arranged on the optical engine base and is used to convert the illumination beam into an image beam. The lens is arranged on the optical engine base and is used to convert the image beam into a projection beam. The light uniformity element adjustment module includes a frame and a first adjustment element. The frame is arranged in the optical engine base. The first adjustment element is screwed to the optical engine base along a first axis and contacts the frame. The first adjustment element has a first end face and a side face. The first end face is perpendicular to the first axis. The side face is not perpendicular to the first axis and is used to receive force to drive the first adjustment element to rotate and push the frame. The light uniformity element is fixed to the frame and is located on the transmission path of the illumination beam, so that the operation of the light uniformity element adjustment module is more convenient and the production efficiency is improved.

Description

Projector and light uniform element adjustment module

technical field

The invention relates to an imaging device and an adjustment module, and in particular to a projector and a light uniform element adjustment module.

Background technique

A projector is a display device used to produce large-scale images. The imaging principle of the projector is to convert the illumination beam generated by the light source module into an image beam through a light valve, and then project the image beam through a lens onto a screen or a wall to form an image. With the advancement of projection technology and the reduction of manufacturing costs, the use of projectors has gradually expanded from commercial use to home use.

Generally speaking, a projector has an integrating column to even out the brightness of the light emitted by the light source and transform the shape of the light beam. Due to tolerances in manufacturing and assembly, the projector will be equipped with adjustment elements for adjusting the position of the integrating column, so that the beam can be projected to the correct position. In order to be able to adjust the integrating column independently in each direction, the number of the adjustment elements is generally multiple, and some of the adjustment elements are located in the small space in the optical machine base and are connected with other components of the projector (such as heat dissipation fins or light beams). The casing of the machine base, etc.) is relatively close, causing inconvenience in the operation of the adjustment components. Taiwan Patent No. I308250 discloses using two adjustment elements to adjust the position of the light integrating column along different axes, and US Patent No. 7540453B2 discloses using an eccentric screw to adjust the position of the light integrating column, but it is still inconvenient to adjust the light integrating column.

Contents of the invention

The invention provides a projector, the operation of the light uniform element adjustment module is relatively convenient, and the production efficiency is improved.

The invention provides an adjustment module of a light uniform element, the operation of the adjustment element is relatively convenient, and the production efficiency is improved.

Other purposes and advantages of the present invention can be further understood from the technical features disclosed in the present invention.

To achieve one or part or all of the above objectives or other objectives, an embodiment of the present invention provides a projector, which includes an optical base, a light source, a light valve, a lens, a light uniform element adjustment module, and a light uniform element. The light source is arranged on the optical machine base and used for providing illumination light beams. The light valve is arranged on the light engine base, and is used for converting the illumination light beam into the image light beam. The lens is arranged on the optical machine base, and is used for converting the image light beam into the projection light beam. The light uniform element adjustment module includes a frame body and a first adjustment element. The frame body is arranged in the optical machine seat. The first adjusting element is screwed to the optical machine base along the first axis and contacts the frame body. The first adjusting element has a first end surface and a side surface. The first end surface is perpendicular to the first axis. The side surface is not perpendicular to the first axis and is used to drive the first adjustment element to rotate and push the frame body under force. The light uniform element is fixed on the frame body and located on the transmission path of the illumination beam.

In order to achieve one or part or all of the above objectives or other objectives, an embodiment of the present invention provides a light uniform element adjustment module, which is used in a projector. The projector includes an optical base, a light source and a light uniform element, and the light source Used to provide light beams. The light uniform element adjustment module includes a frame body and a first adjustment element. The frame body is arranged in the optical machine seat, wherein the light uniform element is fixed on the frame body and located on the transmission path of the illumination beam. The first adjusting element is screwed to the optical machine base along the first axis and contacts the frame body. The first adjusting element has a first end surface and a side surface. The first end surface is perpendicular to the first axis. The side surface is not perpendicular to the first axis and is used to drive the first adjustment element to rotate and push the frame body under force.

Based on the above, the embodiments of the present invention have at least one of the following advantages. In the above embodiments of the present invention, the first adjusting element is screwed to the optical base along the first axis, and the first adjusting element does not pass perpendicular to the first The first end face of the axis is forced to rotate, but the side which is not perpendicular to the first axis is forced to rotate. Accordingly, when other components of the projector are too close to the first end surface of the first adjustment element, the operation of the first adjustment element will not be inconvenient, and the user can apply force to the side surface of the first adjustment element. The first adjustment element is driven to adjust the light uniform element, thereby improving production efficiency.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, a number of embodiments will be described in detail below together with the accompanying drawings.

Description of drawings

FIG. 1 is a schematic diagram of a projector according to an embodiment of the present invention.

FIG. 2 is a partial perspective view of the projector of FIG. 1 .

FIG. 3 is an exploded view of some components of the projector of FIG. 2 .

Fig. 4 is a perspective view of the cover covering the light uniform element adjustment module in Fig. 2 .

Fig. 5 is a schematic diagram of a first adjusting element according to another embodiment of the present invention.

Fig. 6 is a schematic diagram of a first adjusting element according to another embodiment of the present invention.

detailed description

The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed descriptions of multiple embodiments with reference to the drawings. The directional terms mentioned in the following embodiments, such as up, down, front, back, left, right, etc., are only directions referring to the drawings. Accordingly, the directional terms are used to illustrate, not to limit, the invention.

FIG. 1 is a schematic diagram of a projector according to an embodiment of the present invention. Please refer to FIG. 1 , the projector 100 of this embodiment includes an optical base 110 , a light source 120 , a light valve 130 , a lens 140 and a light uniform element 150 . The light source 120 is disposed on the optical machine base 110 and used for providing the illumination light beam L1. The light valve 130 is disposed on the optical base 110 and used for converting the illumination light beam L1 into the image light beam L2. The lens 140 is disposed on the optical base 110 and is used for converting the image beam L2 into a projection beam L3.

FIG. 2 is a partial perspective view of the projector of FIG. 1 . FIG. 3 is an exploded view of some components of the projector of FIG. 2 . Please refer to FIG. 2 and FIG. 3 , the projector 100 further includes a light uniform element adjustment module 160 , and the light uniform element adjustment module 160 in this embodiment includes a frame body 162 , a first adjustment element 164 and a second adjustment element 166 . The frame body 162 is disposed in the optical machine base 110 . The light homogenizing element 150 is, for example, an integration rod, and is fixed on the frame body 162 and located on the transmission path of the illumination light beam L1 shown in FIG. 1 . The first adjustment element 164 is screwed to the housing 112 of the optical machine base 110 along the first axis A1 and contacts the frame body 162 , and the second adjustment element 166 is screwed to the optical machine base 110 along the second axis A2 perpendicular to the first axis A1 the housing 112 and contacts the frame body 162 . The user can rotate the first adjusting element 164 so that the first adjusting element 164 pushes the frame body 162 along the first axis A1, and can rotate the second adjusting element 166 so that the second adjusting element 166 can move along the second axis A2 Push the frame body 162 . In this way, the angle and position of the light homogenizing element 150 can be adjusted through the first adjusting element 164 and the second adjusting element 166 .

In this embodiment, the first adjusting element 164 includes a screw-lock portion 164 a and a rotating portion 164 b and has a first end surface E1 and a side surface S perpendicular to each other, and the side surface S surrounds the first end surface E1 . The screw locking portion 164 a is screwed to the casing 112 of the optical machine base 110 and contacts the frame body 162 , and the first end surface E1 and the side surface S are formed on the rotating portion 164 b. The first end surface E1 is perpendicular to the first axis A1, and the side surface S is not perpendicular to the first axis A1. The side surface S on the rotating portion 164 b of the first adjusting element 164 is used to drive the first adjusting element 164 to rotate and push the frame body 162 under force.

Under the above arrangement, the first adjustment member 164 does not rotate through the force applied to the first end surface E1 perpendicular to the first axis A1 , but to rotate through the force applied to the side surface S not perpendicular to the first axis A1 . Accordingly, when other components of the projector 100 (such as the housing 114 of the optical base 110 shown in FIG. 2 and FIG. 3 ) are too close to the first end surface E1 of the first adjustment element 164, the first adjustment element 164 The operation will not be inconvenient because of this, the user can apply force to the side S of the first adjustment element 164 with bare hands to drive the first adjustment element 164 so as to adjust the light uniform element 150 .

In this embodiment, the second adjusting element 166 is, for example, a screw and has a second end surface E2 , the second end surface E2 is perpendicular to the second axis A2 and is used to drive the second adjusting element 166 to rotate and push the frame body 162 under force. Since the second adjustment element 166 faces upward in the figure and is less likely to be blocked or interfered by other components of the projector 100 , it is convenient for the user to use a screwdriver to apply force to the second end surface E2 to rotate the second adjustment element 166 .

In this embodiment, the projector 100 further includes a heat dissipation module 170 , and the heat dissipation module 170 includes components such as heat dissipation fins 172 and heat pipes 174 . As shown in FIG. 3 , the heat dissipation module 170 and the first adjustment element 164 are respectively located on opposite sides of the light uniformity element 150 , so as to prevent the heat dissipation module 170 from interfering with and blocking the first adjustment element 164 to cause operational inconvenience.

Fig. 4 is a perspective view of the cover covering the light uniform element adjustment module in Fig. 2 . Please refer to FIG. 4 , the projector 100 of the present embodiment further includes a cover 180 , the cover 180 is assembled on the optical base 110 and covers at least part of the light uniform element adjustment module 160 . The cover body 180 has an opening 982, and the first adjusting element 164 and the second adjusting element 166 are both exposed by the opening 982, so that the user can easily apply force to the side S of the first adjusting element 164 through the opening 982 to rotate the first adjusting element. The element 164 is convenient to use a screwdriver to apply force to the second end surface E2 of the second adjusting element 166 through the opening 982 to rotate the second adjusting element 166 . The cover 180 of this embodiment is, for example, designed to be assembled only with the optical machine base 110 and not assembled with the light uniform component adjustment module 160, so that the assembly or disassembly of the cover 180 is relatively simple and does not align with the light uniform component 150. Alignment accuracy is adversely affected. However, the present invention is not limited thereto, and in other embodiments, the cover body 180 , the optical machine base 110 and the light uniform element adjustment module 160 may also be assembled together.

In this embodiment, the rotating portion 164b of the first adjusting element 164 is, for example, disc-shaped, and the side surface S of the rotating portion 164b has, for example, concave-convex lines for the user to apply force; the outer diameter of the rotating portion 164b of the first adjusting element 164 It is designed to be larger than the outer diameter of the second adjustment element 166, more specifically the outer diameter of the first end face E1 of the first adjustment element 164 is designed to be larger than the outer diameter of the second end face E2 of the second adjustment element 166, so the side S has a relatively large distance from the first axis A1, and when the user exerts force on the side S, a large enough moment can be generated to smoothly drive the first adjustment member 164 to rotate, wherein the distance between the side S and the first axis A1 is, for example, greater than 10 mm.

The present invention is not limited to the form of the rotating part of the first adjusting element, and it may be in other suitable shapes, which are exemplified by figures below.

Fig. 5 is a schematic diagram of a first adjusting element according to another embodiment of the present invention. Please refer to FIG. 5 , the configuration and function of the screw lock portion 264 a of the first adjustment member 264 in this embodiment are similar to the screw lock portion 164 a of the first adjustment member 164 described above, and will not be repeated here. The difference between the first adjusting element 264 and the first adjusting element 164 is that the rotating portion 264b of the first adjusting element 264 is rod-shaped instead of disc-shaped. The first adjusting element 264 is used for screwing to the frame body (not shown) along the first axis A1'. The rotating part 264b has a first end surface E1' and a side surface S' perpendicular to each other. The first end surface E1' is perpendicular to the first The axis A1' and the side S' are not perpendicular to the first axis A1'. The side S' is used to drive the first adjustment element 264 to rotate along the first axis A1' under force.

Fig. 6 is a schematic diagram of a first adjusting element according to another embodiment of the present invention. Please refer to FIG. 6 , the configuration and function of the screw lock portion 364 a of the first adjustment component 364 in this embodiment are similar to the screw lock portion 164 a of the first adjustment component 164 described above, and will not be repeated here. The difference between the first adjusting element 364 of this embodiment and the first adjusting element 164 is that the rotating portion 364b of the first adjusting element 364 is star-shaped instead of disc-shaped. The first adjusting element 364 is used for screwing to the frame body (not shown) along the first axis A1", the rotating part 364b has a first end surface E1" and a side surface S" perpendicular to each other, and the first end surface E1" is perpendicular to the first axis A1" and the side S" is not perpendicular to the first axis A1". The side S" is used to drive the first adjustment element 364 to rotate along the first axis A1" under force. However, the side S' in the above-mentioned FIG. The side S" in 6 may further have concave-convex lines for the user to apply force conveniently.

To sum up, the embodiments of the present invention have at least one of the following advantages. In the above embodiments of the present invention, the first adjusting element is screwed to the optical base along the first axis, and the first adjusting element is not passed perpendicular to The first end face of the first axis is forced to rotate, but the side surface not perpendicular to the first axis is forced to rotate. Accordingly, when other components of the projector are too close to the first end surface of the first adjustment element, the operation of the first adjustment element will not be inconvenient, and the user can apply force to the side surface of the first adjustment element. The first adjusting element is driven to adjust the light uniform element, so as to improve the production efficiency, simplify the manufacturing process and improve the yield rate. In addition, in the above embodiments of the present invention, the outer diameter of the first end surface of the first adjustment element is designed to be larger than the outer diameter of the second end surface of the second adjustment element, so that the side surface of the first adjustment element is in line with the side surface of the first adjustment element. The rotation axis (namely the above-mentioned first axis) has a relatively large distance, so that when the user exerts force on the side, a large enough moment can be generated to smoothly drive the first adjustment element to rotate.

The above description is only a preferred embodiment of the present invention, and cannot limit the scope of the present invention with this, that is, all simple equivalent changes and modifications made according to the claims of the present invention and the content of the invention still belong to the patent of the present invention. within the scope covered. In addition, any embodiment or claim of the present invention does not necessarily achieve all the objects or advantages or features disclosed in the present invention. In addition, the abstract part and the title are only used to assist the search of patent documents, and are not used to limit the scope of rights of the present invention. In addition, terms such as first adjustment element, second adjustment element, first axis, second axis, first end surface, second end surface, etc. mentioned in the specification are only used to indicate the names of components, and are not used to limit the number of components. upper or lower limit.

【Symbol Description】

100: Projector

110: optical base

112: Shell

114: Chassis

120: light source

130: light valve

140: Lens

150: light uniform element

160: Light uniform element adjustment module

162: frame body

164, 264, 364: first adjustment element

164a, 264a, 364a: screw lock part

164b, 264b, 364b: rotating part

166: second adjustment element

170: cooling module

172: cooling fins

174: heat pipe

180: cover body

982: opening

A1, A1’, A1”: first axis

A2: Second axis

E1, E1’, E1”: the first end face

E2: second end face

L1: Lighting beam

L2: image beam

L3: projection beam

S, S’, S”: side

Claims (19)

1. a scialyscope, including:

Optical base；

Light source, is arranged at this optical base, and is used for providing illuminating bundle；

Light valve, is arranged at this optical base, and for this illuminating bundle is converted into image strip；

Camera lens, is arranged at this optical base, and for this image strip is converted into projected light beam；

Light equalization element adjusting module, adjusts element including support body and first, and this support body is configured at this light In support, this first adjustment element is screw-locked at this optical base along first axle and contacts this support body, wherein This first adjustment element has the first end face and side, and this first end face is perpendicular to this first axle, should Side is not orthogonal to this first axle and drives for stress this first adjustment element rotate and promote this Support body；

Light equalization element, is fixed on this support body and is positioned on the bang path of this illuminating bundle；And

Lid, is assembled in this optical base and covers at least partly this light equalization element adjusting module, wherein This lid has opening, and this first adjustment element is exposed by this opening.

2. scialyscope as claimed in claim 1, it is characterised in that this side is around this first end face.

3. scialyscope as claimed in claim 1, it is characterised in that this light equalization element adjusting module Also including the second adjustment element, this second adjustment element is screw-locked at this optical base and contact along the second axis This support body, this second axis is perpendicular to this first axle.

4. scialyscope as claimed in claim 3, it is characterised in that this second adjusts element and have the Biend, this second end face is perpendicular to this second axis and drives this second adjustment element for stress Rotate and promote this support body.

5. scialyscope as claimed in claim 4, it is characterised in that this first adjust element this The external diameter of end face is more than the external diameter of this second end face of this second adjustment element.

6. scialyscope as claimed in claim 3, it is characterised in that this second adjustment element is opened by this Mouth exposes.

7. scialyscope as claimed in claim 1, it is characterised in that this lid only with this optical base phase Assemble mutually.

8. scialyscope as claimed in claim 1, it is characterised in that this first adjustment element includes spiral shell Lock section and rotating part, this spiro-locking section is screw-locked at this optical base and contacts this support body, this first end face and should Side is formed at this rotating part.

9. scialyscope as claimed in claim 1, it is characterised in that this side and this first axle Distance is more than 10 millimeters.

10. scialyscope as claimed in claim 1, it is characterised in that this side is perpendicular to this first end Face.

11. scialyscopes as claimed in claim 1, it is characterised in that also include radiating module, this dissipates Thermal modules lays respectively at the opposite sides of this light equalization element with this first adjustment element.

12. 1 kinds of light equalization element adjusting modules, for scialyscope, this scialyscope includes optical base, light Source, light equalization element and lid, this light source is used for providing illuminating bundle, and this light equalization element adjusts mould Block includes:

Support body, is configured in this optical base, and wherein this light equalization element is fixed on this support body and is positioned at this On the bang path of illuminating bundle；And

First adjusts element, is screw-locked at this optical base along first axle and contacts this support body, wherein this One adjusts element has the first end face and side, and this first end face is perpendicular to this first axle, this side It is not orthogonal to this first axle and drives for stress this first adjustment element rotate and promote this Body,

This lid is assembled in this optical base and covers at least partly this light equalization element adjusting module, wherein This lid has opening, and this first adjustment element is exposed by this opening.

13. light equalization element adjusting modules as claimed in claim 12, it is characterised in that this side Around this first end face.

14. light equalization element adjusting modules as claimed in claim 12, it is characterised in that also include Second adjusts element, and wherein this second adjustment element is screw-locked at this optical base along the second axis and contact should Support body, this second axis is perpendicular to this first axle.

15. light equalization element adjusting modules as claimed in claim 14, it is characterised in that this is second years old Adjusting element and have the second end face, this second end face is perpendicular to this second axis and drives for stress This second adjustment element rotates and promotes this support body.

16. light equalization element adjusting modules as claimed in claim 15, it is characterised in that this is first years old The external diameter of this first end face adjusting element is more than the external diameter of this second end face of this second adjustment element.

17. light equalization element adjusting modules as claimed in claim 12, it is characterised in that this is first years old Adjusting element and include spiro-locking section and rotating part, this spiro-locking section is screw-locked at this optical base and contacts this support body, This first end face and this side are formed at this rotating part.

18. light equalization element adjusting modules as claimed in claim 12, it is characterised in that this side It is more than 10 millimeters with the distance of this first axle.

19. light equalization element adjusting modules as claimed in claim 12, it is characterised in that this side It is perpendicular to this first end face.