CN1959524A

CN1959524A - Projecting unit

Info

Publication number: CN1959524A
Application number: CN 200510119320
Authority: CN
Inventors: 郭建峰
Original assignee: BenQ Corp
Current assignee: BenQ Corp
Priority date: 2005-11-03
Filing date: 2005-11-03
Publication date: 2007-05-09
Anticipated expiration: 2025-11-03
Also published as: CN100489650C

Abstract

A projection device consists of lamp bulb module for generating a imaging light beam, holding mechanism being formed by frame, the first regulation unit and the second regulation unit as well as being used for holding lamp bulb module. It is featured as using frame to support lamp bulb module, using the first regulation unit to regulate position of lamp bulb relative to frame at the first direction and using the second one to regulate position of lamp bulb relative to frame at the second direction.

Description

Projection arrangement

Technical field

The present invention relates to a kind of projection arrangement, particularly relate to a kind of projection arrangement of adjusting bulb module with optimization light-source brightness and uniformity coefficient.

Background technology

Figure 1A is the calcspar of known projection arrangement structure.With reference to 1A, 1B, projection arrangement 100 comprises bulb module 110, optical collector 120, lens module 130 and image-forming module 140.Bulb module 110 comprises burner 112 and ellipsoid shape reflex housing 114.The central shaft Z that optical collector 120 is parallel to reflex housing 114 is provided with.Burner 112 is in order to producing imaging beam L, and accumulates a light harvesting point Q via reflex housing 114, drops on just on the light receiving end R and central shaft Z of optical collector 120.Imaging beam L via optical collector 120 homogenising after, via lens module 130 and image-forming module 140, be imaged at last on the screen 150 again.

Yet, shown in Figure 1B, in the manufacture process of bulb module 110, when burner 112 and reflex housing 114 fit together, the light source center O of burner 112 tends to depart from the central shaft Z of reflex housing 114 and can not aim at optical collector 120, thereby make and the also off-center axle Z thereupon of position of light harvesting point Q cause the brightness of image of screen 150 and uniformity coefficient all to descend, have a strong impact on the image quality of projection arrangement 100.

Summary of the invention

Therefore, purpose of the present invention just provides a kind of projection arrangement of novelty.Utilization is configured in the adjusting gear on the bulb module clamping device, adjust horizontal level and the upright position of bulb module with respect to clamping device, make the light harvesting point position of imaging beam adjust on the light receiving end and central shaft that drops on optical collector thereupon, reach the brightness and the uniformity coefficient of optimization image.

According to purpose of the present invention, a kind of projection arrangement is proposed, comprise bulb module and clamping device.Bulb module is in order to produce an imaging beam, and clamping device is in order to the clamping bulb module.Clamping device comprises framework, first adjusting gear and second adjusting gear.Framework is in order to support bulb module, and framework has the first breasting face and the second breasting face, first adjusting gear is arranged on the first breasting face, in order to adjust the position of the relative framework of bulb module at first direction, second adjusting gear is arranged on the second breasting face, in order to adjust the position of the relative framework of bulb module in second direction.

According to purpose of the present invention, a kind of projection arrangement is proposed, comprising: bulb module, optical collector and clamping device.Bulb module is in order to produce an imaging beam, and optical collector comprises the light receiving end, and imaging beam accumulates light harvesting point at the light receiving end.Clamping device is in order to the clamping bulb module, and clamping device comprises first adjusting gear and second adjusting gear.First adjusting gear is positioned on the light receiving end position at first direction in order to adjust the light harvesting point.Second adjusting gear is positioned on the light receiving end position in second direction in order to adjust the light harvesting point.

For making above-mentioned purpose of the present invention, feature and the advantage can more obvious easy to understand, below especially exemplified by preferred embodiment, and conjunction with figs. be elaborated.

Description of drawings

Figure 1A is the structure calcspar of known projection arrangement;

Figure 1B represents the structural representation of the burner misalignment optical collector of bulb module among Figure 1A;

Fig. 2 represents the structure calcspar according to a kind of projection arrangement of one embodiment of the present invention;

In Fig. 3 presentation graphs 2 in order to the clamping device of clamping bulb module diagrammatic cross-section at X-Y plane;

Fig. 4 represents that the bulb module of adjusting Fig. 2 produces the synoptic diagram of the relative central shaft Z of the light harvesting point Q position of imaging beam L.

Embodiment

With reference to Fig. 2, its expression is according to the structure calcspar of a kind of projection arrangement of one embodiment of the present invention.Projection arrangement 200 comprises bulb module 210, clamping device 220, optical collector 230, lens module 240 and image-forming module 250.Bulb module 210 comprises burner 212, ellipsoid shape reflex housing 214 and square outer cover 216, clamping device 220 is in order on the square outer cover 216 that is clamped in bulb module 210, and the central shaft Z of optical collector 230 parallel bulb modules 210 (or reflex housing 214) is provided with.Burner 212 is in order to producing imaging beam L, and accumulates a light harvesting point Q via reflex housing 214, drops on just on the light receiving end R and central shaft Z of optical collector 230.Imaging beam L via optical collector 230 homogenising after, via lens module 240 and image-forming module 250, be imaged at last on the screen 260 again.

With reference to Fig. 3, in order to the clamping device 220 of clamping bulb module 210 diagrammatic cross-section at X-Y plane, wherein directions X is represented horizontal direction in its presentation graphs 2, and the Y direction is represented vertical direction.Clamping device 220 also comprises framework 300, first adjusting gear 310, second adjusting gear 320, first shell fragment 330 and second shell fragment 340.Framework 300 is in order to support bulb module 210, and framework 300 has the first breasting face (Datum) 302 and the second breasting face 304.The in-plane of the first breasting face 302 and the second breasting face 304 respectively towards+directions X and+the Y direction.First adjusting gear 310 is arranged on the first breasting face 302, in order to adjust horizontal level (directions X position) Dx of the relative framework 300 central shaft Z ' of bulb module 210 central shaft Z.And second adjusting gear 320 is arranged on the second breasting face 304, in order to adjust vertical seated position (the Y direction position) Dy of the relative framework 300 central shaft Z ' of bulb module 210 central shaft Z.

As shown in Figure 3, first adjusting gear 310 comprises that also first holding piece 312 and first screw, 314, the second adjusting gears 320 also comprise second holding piece 322 and second screw 324.First holding piece 312 is arranged between the first breasting face 302 and the bulb module 210, and is close on the bulb module 210.First screw 314 is arranged on the first breasting face 302 of framework 300 with lock mode, and withstands first holding piece 312, in order to the major drive F1 on first holding piece, the 312 edge+directions Xs to be provided.In addition, second holding piece 322 is arranged between the second breasting face 304 and the bulb module 210, and is close on the bulb module 210.Second screw 324 is arranged on the second breasting face 304 of framework 300 with lock mode, and withstands second holding piece 322, in order to the second expulsive force F2 of second holding piece 322 in+Y direction to be provided.

In addition, first shell fragment 330 is arranged between the first surface S1 and bulb module 210 of the framework 300 relative first breasting faces 302, in order to the first elastic restoring force f1 that provides bulb module 210 to move on directions X relative to framework 300.And second shell fragment 340 be arranged between the second surface S2 and bulb module 210 of the framework 300 relative second breasting faces 304, in order to the second elastic restoring force f2 that provides bulb module 210 on the Y direction, to move relative to framework 300.

Fig. 4 represents to adjust the synoptic diagram of the relative central shaft Z of light harvesting point Q position of the bulb module 210 imaging beam L that produces of Fig. 2.As shown in Figure 4, before bulb module 210 that assembling is finished and clamping device 220 directly place camera lens 400, and connect charge coupled cell (CCD) module 410 at the rear of screen 260 and detect the light harvesting point Q1 (or Q2) of imaging beam L and the relative position of central shaft Z, promptly corresponding to the bright spot A (or C) of CCD screen 412 and the relative position of central point B.As mentioned above, after burner 212 and reflex housing 214 assemblings, because burner 212 can not aim at optical collector 230, make the relative central shaft Z of light harvesting point Q1 of imaging beam L when-Y deviation in driction, with respect to being on the CCD screen 412 to A point position by B point position deviation.Utilize the design of second adjusting gear 320, second screw 322 is locked (arrow W1 direction) and on second holding piece 324, provided expulsive force F2, bulb module 210 is moved, so that bright spot A (with respect to light harvesting point Q1) is adjusted back on the central point B (with respect to central shaft Z) relative to framework 300 edge+Y directions.Similarly, as the relative central shaft Z of the light harvesting point Q2 of imaging light beam L during to+Y deviation in driction, utilize the design of second adjusting gear 320, second screw 322 is eased out (arrow W2 direction), and the elastic restoring force f2 that is provided by second shell fragment 340, bulb module 210 is moved, so that bright spot C (with respect to light harvesting point Q2) is adjusted back on the central point B (with respect to central shaft Z) relative to framework 300 edge-Y directions.

In like manner as can be known, when the relative central shaft Z of the light harvesting point Q of imaging light beam L to-directions X (+directions X) when departing from, can utilize the design of first adjusting gear 310, first screw 312 is locked (easing out), bulb module 210 is moved, so that the light harvesting point Q that will depart from adjusts back on the central shaft Z relative to framework 300 edge+directions Xs (directions X).Because its operating principle is identical with above-mentioned Y direction adjustment principle, does not just give unnecessary details at this.Therefore, utilize first adjusting gear 310 and second adjusting gear 320 of clamping device 220, the light harvesting point that bulb module 210 is caused in manufacturing or assembling process can be departed to adjust back to and drop on the central shaft Z, avoid reducing, effectively improve the image quality of projection arrangement 200 because of the light harvesting point departs from the brightness of image and the uniformity coefficient that cause.

As mentioned above, though the present invention comprises first holding piece 312 and first screw 314 and first shell fragment 330 of arranging in pairs or groups with first adjusting gear 310; Second adjusting gear 320 comprises that second holding piece 322 and second screw 324 and second shell fragment 340 of arranging in pairs or groups explain for example, but first adjusting gear 310 of the present invention and second adjusting gear 320 also can use other first adjustment part and second adjustment part respectively, and first holding piece 312 and required directions X expulsive force F1 and the Y direction expulsive force F2 of second holding piece 322 are provided.First shell fragment 330 and second shell fragment 340 also can be the flexible members of other shape, or other can provide the structural design of restoring force f1 and f2, even first adjusting gear 310 and second adjusting gear 320 also can be other structural design, needn't use first shell fragment 330 and second shell fragment 340, and can directly provide adjustment bulb module 210 to move required expulsive force F1 and restoring force f1 and expulsive force F2 and restoring force f2 with vertical direction in the horizontal direction respectively relative to clamping device 220.Adjust back on the central shaft Z as long as can reach the light harvesting point Q that to depart from,, do not break away from technical scope of the present invention to reach the purpose of optimization brightness of image and uniformity coefficient.

The projection arrangement that the above embodiment of the present invention disclosed, its advantage is, by the detection of the design of simple adjusting gear and collocation CCD module to the bright spot of light source, can be easy to and exactly the light harvesting point is transferred on the light receiving end and central shaft of optical collector, the problem of avoiding bulb module manufacturing or brightness of image that assembly error produced and uniformity coefficient to reduce effectively improves the image quality of projection arrangement.

In sum, though the present invention discloses with preferred embodiment, it is not in order to limit the present invention; any those skilled in the art; not breaking away from design of the present invention and scope, can make various changes and retouching, so protection scope of the present invention is defined with accompanying Claim.

Claims

1. projection arrangement comprises:

One bulb module is in order to produce an imaging beam; And

One clamping device, in order to the described bulb module of clamping, wherein said clamping device comprises:

One framework, in order to support described bulb module, described framework has one first breasting face and one second breasting face;

One first adjusting gear is arranged on the described first breasting face, in order to adjust the position of the described relatively framework of described bulb module at a first direction; And

One second adjusting gear is arranged on the described second breasting face, in order to adjust the position of the described relatively framework of described bulb module in a second direction.

2. projection arrangement as claimed in claim 1, wherein said first adjusting gear also comprises: one first holding piece is arranged between the first breasting face and the bulb module, and is close on the bulb module; And one first adjustment part, be arranged on the first breasting face, and withstand first holding piece, in order to the major drive of first holding piece on first direction to be provided.

3. projection arrangement as claimed in claim 2, wherein said clamping device also comprises one first shell fragment, be arranged between the first surface and bulb module of the relative first breasting face of framework, in order to one first elastic restoring force that provides bulb module to move at first direction relative to framework.

4. projection arrangement as claimed in claim 2, wherein said first adjustment part are one first screw that is arranged on framework, and provide the major drive with lock mode on first holding piece.

5. projection arrangement as claimed in claim 1, wherein said second adjusting gear also comprises: one second holding piece is arranged between the second breasting face and the bulb module, and is close on the bulb module; And one second adjustment part, be arranged on the second breasting face, and withstand second holding piece, in order to one second expulsive force of second holding piece on second direction to be provided.

6. projection arrangement as claimed in claim 5, wherein said clamping device also comprises one second shell fragment, be arranged between the second surface and bulb module of the relative second breasting face of framework, in order to one second elastic restoring force that provides bulb module to move in second direction relative to framework.

7. projection arrangement as claimed in claim 6, wherein said second adjustment part are one second screw that is arranged on framework, and provide second expulsive force with lock mode on second holding piece.

8. projection arrangement as claimed in claim 1, wherein also comprise an optical collector, optical collector comprises a light receiving end, imaging beam accumulates light harvesting point at the light receiving end, and first adjusting gear and second adjusting gear are to be positioned on the light receiving end position in first direction and second direction in order to adjust the light harvesting point respectively.

9. projection arrangement as claimed in claim 1, wherein said first direction are a horizontal direction, and second direction is a vertical direction.