CN1779549A

CN1779549A - Projector

Info

Publication number: CN1779549A
Application number: CN 200410094955
Authority: CN
Inventors: 刘劲谷
Original assignee: Coretronic Corp
Current assignee: Coretronic Corp
Priority date: 2004-11-19
Filing date: 2004-11-19
Publication date: 2006-05-31
Anticipated expiration: 2024-11-19
Also published as: CN100421027C

Abstract

A projecting device consists of a light source for generating a light beam, a light filtering unit set on light path of light beam and equipped with multiple filter regions being adjacent-arranged to be ring form as at least one adjacent place being a straight line with its elongating direction not passing through ring center, and a moving unit connected with filtering unit for moving it on. The said projecting device can provide multiple displaying modes for meeting different requirement.

Description

Projection arrangement

[technical field]

The present invention is relevant a kind of projection arrangement, refers in particular to a kind of projection arrangement with filtering apparatus.

[background technology]

See also Fig. 1,2, known projection arrangement 10 mainly comprises a light source 11, one filtering apparatus 12, one integration rod 13 (Integration Rod), one light valve 14 (Light Valve), one projection lens 15 (Projection Lens), wherein filtering apparatus 12 is by red (Red, R), green (Green, G) and blue (Blue, B) filter area is formed, or by red filter area 121, green filter area 122, blue filter area 123 and white (White, W) the filter area 124 adjacent circular rings that are arranged in, produce an illuminating bundle by light source 11, behind filtering apparatus 12, produce red in regular turn, green and blue light, do homogenising through integration rod 13 again and handle, be projeced into light valve 14, after handling through light valve 14, be projeced into projection lens 15, again image be presented on the screen 16.

So the situation difference of using along with projection arrangement needs higher brightness usually when bulletin, needs higher color saturation when ornamental film usually, and therefore, the projection arrangement that can provide various modes to show is to be current trends.

In addition, have different visual experiences, to feel comparatively warm during as low colour temperature, to feel more refrigerant during high colour temperature, so projection arrangement wants the mechanism of adjusting colour temperature can be provided, could satisfy the visual demand of user's hobby along with colour temperature changes.

And known projection arrangement can utilize the area ratio of the filter area of all kinds of adjusting filtering apparatus, change brightness, color saturation and colour temperature, if will improve brightness, can reach by the area that increases white filter area 124, but this mode can reduce the area of red filter area 121, green filter area 122, blue filter area 123, causes the color saturation variation of projection arrangement; If will change color saturation or colour temperature, can reach by changing area red, green and blue filter area, but this mode can influence white filter area 124 areas, cause the brightness of projection arrangement to change.

Its filter area of known filtering apparatus design for single layer structure and filter area between the equal center of circle by circular ring of separator bar, so light beam is all identical by the color distribution ratio of arbitrary its filter area of circumference of filtering apparatus, so can't make a projection arrangement that high brightness, high color saturation, high colour temperature and low colour temperature isotype can be provided by the position that changes light beam projection filtering apparatus.

In addition, see also Fig. 3, Fig. 3 is a U.S. Patent number 5,650, the synoptic diagram of 832 filtering apparatus 22.A kind of projection arrangement that provides various modes to show of its exposure, filtering apparatus 22 has two-layer concentric rings 21,222, and concentric rings 21 and concentric rings 22 utilize the red, green, blue filter area configuration of different area ratio, change color saturation.Again by mobile filtering apparatus 22, make illuminating bundle (figure shows) in the position that concentric rings 21 and 22 switchings of concentric rings are passed through, so that the different color saturation degree to be provided.Yet, this filtering apparatus adopts sandwich construction, make the number of filter area reach territory, adhesioin zone increase therebetween, cause on the processing procedure the comparatively complicated cost that also causes higher, and the regional increase of adhering will make filtering apparatus at a high speed and the viscose deterioration probability that causes of high temperature promote, moreover, the contextual model that need provide when projection arrangement increases, for example: increase the high brightness pattern, then the concentric ring number of filtering apparatus 22 will increase thereupon, and this will make the processing procedure of filtering apparatus and viscose district degradation more serious.

[summary of the invention]

A purpose of the present invention provides a kind of projection arrangement, to solve the problem that aforementioned known techniques is met with.

Another object of the present invention provides a kind of projection arrangement, utilize all non-structural design of passing through the center of circle of circular ring of separator bar between filter area, and the position that cooperates the change light beam to throw filtering apparatus, make light beam pass through the color distribution ratio of arbitrary its filter area of circumference of filtering apparatus neither with, and make this projection arrangement that plurality of display modes can be provided, to adapt to different demands.

In order to achieve the above object, the invention provides a kind of projection arrangement, it is characterized in that: comprising: one produces the light source of an illuminating bundle; One filtering apparatus is to be located on the light path of this illuminating bundle, and it has a plurality of filter areas, and these a plurality of filter areas are adjacently to be arranged in circularly, and wherein at least one adjacent is the straight line in the center of circle by this annulus of a bearing of trend; And one be connected in this filtering apparatus in order to move the mobile device of this filtering apparatus.

Described projection arrangement is characterized in that: these a plurality of filter areas are to comprise a red filter area, green filter area and blue filter area.

Described projection arrangement is characterized in that: these a plurality of filter areas more comprise a white filter area.

This mobile device is in order to changing the position of this illuminating bundle by this filtering apparatus, and then changes brightness, color saturation and the colour temperature of this projection arrangement.

These a plurality of filter areas can be made up of a plurality of optical filter.

These a plurality of filter areas also can be a plurality of filter coatings that are coated with on a light-passing board.

Compared to known projection arrangement, advantage of the present invention is that its filter area of filtering apparatus that this projection arrangement adopts only is required to be the single layer structure design, can change the position of this illuminating bundle by this mobile device by this filtering apparatus, and then change brightness, color saturation and the colour temperature of this projection arrangement, make this projection arrangement provide various modes to show, therefore can reach the effect of simplifying the filtering apparatus processing procedure and reducing cost, provide various modes to show simultaneously, satisfy the visual demand of user's hobby or different occasions.

Can be about the advantages and spirit of the present invention by following detailed Description Of The Invention and appended graphic being further understood.

[description of drawings]

Fig. 1 is the synoptic diagram of known projection arrangement.

Fig. 2 is the front elevation of known filtering apparatus.

Fig. 3 is a U.S. Patent number 5,650, the front elevation of 832 filtering apparatus.

Fig. 4 is the synoptic diagram of projection arrangement of the present invention.

Fig. 5 is the filtering apparatus front elevation of first embodiment of the invention.

Fig. 6 is the filtering apparatus front elevation of second embodiment of the invention.

[embodiment]

See also Fig. 4, Fig. 4 is the synoptic diagram of the projection arrangement 30 of the present invention's first specific embodiment.Projection arrangement 30 of the present invention comprises a light source 31, one filtering apparatus 32, an integration rod 33, a light valve 34 and a projection lens 35; Wherein light source 31 produces an illuminating bundle, and illuminating bundle produces three red, green and blue coloured light by behind the filtering apparatus 32, do homogenising through integration rod 33 again and handle, be projeced into light valve 34 afterwards, after handling through light valve 34, be projeced into projection lens 35, picture is presented on the screen 36.

See also shown in Figure 5, filtering apparatus 32 has red filter area 321, one green filter area 322, one a blue filter area 323 and a white filter area 324, filter area 321,322,323 and 324 adjacent arrangements form circular ring, and the adjacent of red filter area 321 and green filter area 322, blue filter area 323, and the adjacent of white filter area 324 and green filter area 322, blue filter area 323, be all the non-straight line of bearing of trend by its center of circle of circular ring.Filtering apparatus 32 also is connected with a mobile device (figure shows) to drive filtering apparatus 32 generation displacements, after by mobile device filtering apparatus 32 being moved to the precalculated position, change the position of illuminating bundle by filtering apparatus 32, along with whenever revolving, filtering apparatus 32 turns around, illuminating bundle is by the ratio difference of red filter area 321, green filter area 322, blue filter area 323 and white filter area 324, and after making illuminating bundle pass through filtering apparatus 32, color saturation, brightness change.In present embodiment, when the position of illuminating bundle by filtering apparatus 32 moves to N by M, because filtering apparatus 32 whenever revolves and turns around, illuminating bundle increases (increasing to 100 ° by 86 °) by the ratio of white filter area 324, therefore can switch to the bulletin pattern that brightness increases; On the contrary, when the position of illuminating bundle by filtering apparatus 32 moved to M by N, illuminating bundle reduced by the ratio of white filter area 324, therefore can switch to the ornamental film pattern that color saturation increases.

See also Fig. 6, Fig. 6 is the filtering apparatus 42 of the present invention's second specific embodiment, multiple colour temperature pattern that provides can be provided for it, filtering apparatus 42 has red filter area 421, one a green filter area 422 and a blue filter area 423, and blue filter area 423 and red filter area 421, and the adjacent of green filter area 422, be the non-straight line of bearing of trend, and red filter area 421 is the straight line that bearing of trend passes through its center of circle of circular ring with green filter area 422 adjacents by its center of circle of circular ring.Filtering apparatus 42 also is connected with a mobile device (figure shows) to drive filtering apparatus 42 generation displacements, after by mobile device filtering apparatus 42 being moved to the precalculated position, change the position of illuminating bundle by filtering apparatus 42, along with whenever revolving, filtering apparatus 42 turns around, illuminating bundle is by the ratio difference of red filter area 421, green filter area 422 and blue filter area 423, and after making illuminating bundle pass through filtering apparatus 42, colour temperature changes.In present embodiment, when the position of illuminating bundle by filtering apparatus 42 moves to Q by P, because filtering apparatus 42 whenever revolves and turns around, illuminating bundle increases (increasing to 100 ° by 86 °) by the ratio of blue filter area 423, and reach high colour temperature (being refrigerant coloured light): on the contrary, when the position of illuminating bundle by filtering apparatus 42 moves to P by Q, because filtering apparatus 42 whenever revolves and turns around, illuminating bundle reduces by the ratio of blue filter area 423, and reaches low colour temperature (being warm coloured light) pattern.

Red filter area in the above preferred embodiment, green filter area, blue filter area and white filter area, can be formed by red optical filter, green optical filter, blue optical filter and white optical filter, also can on a light-passing board, be coated with red filter coating, green filter coating and blue filter coating and reach.

In addition, the straight line of adjacent need have the straight line of a non-bearing of trend by its center of circle of circular ring at least between filter area, remaining straight line can be straight line or non-bearing of trend the straight line by circular ring its center of circle of bearing of trend by its center of circle of circular ring, and it can be decided according to the demand numerical value of brightness, saturation degree or the colour temperature of projection arrangement.Moreover, also can see through the gradient of adjustment straight line or adjacent between filter area is set as the turnover line segment with multiple gradient, all can make projection arrangement have various modes.

By the above detailed description of preferred embodiments, be to wish to know more to describe feature of the present invention and spirit, and be not to come the present invention is limited with above-mentioned disclosed preferred embodiment.

Claims

1, a kind of projection arrangement is characterized in that: comprising:

One produces the light source of an illuminating bundle;

One filtering apparatus is to be located on the light path of this illuminating bundle, and it has a plurality of filter areas, and these a plurality of filter areas are adjacently to be arranged in circularly, and wherein at least one adjacent is the straight line in the center of circle by this annulus of a bearing of trend; And

One is connected in this filtering apparatus in order to move the mobile device of this filtering apparatus.

2, projection arrangement as claimed in claim 1 is characterized in that: these a plurality of filter areas are to comprise a red filter area, green filter area and blue filter area.

3, projection arrangement as claimed in claim 2 is characterized in that: these a plurality of filter areas more comprise a white filter area.

4, projection arrangement as claimed in claim 1 is characterized in that: this mobile device is in order to changing the position of this illuminating bundle by this filtering apparatus, and then changes brightness, color saturation and the colour temperature of this projection arrangement.

5, projection arrangement as claimed in claim 1 is characterized in that: these a plurality of filter areas are made up of a plurality of optical filter.

6, projection arrangement as claimed in claim 1 is characterized in that: these a plurality of filter areas are a plurality of filter coatings that are coated with on a light-passing board.