TWM558500U - Projecting apparatus - Google Patents

Abstract

A projecting apparatus includes a color wheel, a light emitter, a narrow band filter, and a moving module. The light emitter is configured to emit light to pass through the color wheel. The transmission spectrum of the color wheel covers the transmission spectrum of the narrow band filter. The moving module is configured to move the narrow band filter, so as to selectively allow the light to pass through or leave the narrow band filter.

Description

Projection device

The present invention relates to a projection device, and more particularly to a projection device for applying a color wheel.

In general, projection devices can be divided into two designs according to a 3-chip or 1-chip projector. Among them, the projection device used in the single-chip projector is relatively simple in design. After the incident light reaches the projection device, all or most of the incident light output is retained at a certain timing. Since the optical design requires the incident light to pass through, there is a section on the substrate that needs to be penetrated.

For a single-chip projector, a projector can only select a single color gamut. When a wide color gamut is selected, although the color saturation is high, it will correspond to a situation where the brightness is too low. When a narrow color gamut is selected, although the brightness can be increased, it will correspond to a situation in which the color is insufficient. If the color wheel is changed by changing the color wheel, the inconvenience that the user needs to replace it is increased, and the damage is easily changed during the replacement process. Moreover, if two color wheels are provided, the built-in space required for the projector is large, which not only causes the projector to become bulky, but also makes the overall cost of the projector high.

In view of this, one of the aims of the present invention is to propose a projection apparatus that can selectively achieve a wide color gamut and high brightness using a single color wheel.

In order to achieve the above object, according to one embodiment of the present invention, a projection apparatus includes a color wheel, a light emitter, a narrow band filter, and a moving module. The light emitter is configured to emit light through the color wheel. The color wheel of the color wheel covers the optical band of the narrow band filter. The mobile module is configured to move a narrow band filter to selectively pass light through or out of the narrow band filter.

In one or more embodiments of the present invention, the projection apparatus further includes a wide-band transparent coated slide glass, and the wide-band transparent coated slide glass is a full-transparent transparent glass with special coating dustproof. The mobile module is also configured to move a wide-band transparent coated slide to selectively pass light through or away from the wide-band clear coated slide.

In one or more embodiments of the present invention, the mobile module is further configured to simultaneously move the narrow band filter and the wide band transparent coated slide, thereby selectively allowing the light to pass through the narrow band filter and the wide band transparent One of the coated slides.

In one or more embodiments of the present invention, the projection apparatus described above further includes a wide-band transparent coated slide. Light passes through a wide-band transparent coated slide. A wide-band transparent coated slide is located on the side of the color wheel adjacent to the light emitter.

In one or more embodiments of the present invention, the projection apparatus described above further includes a wide-band transparent coated slide. Light passes through a wide-band transparent coated slide. The wide-band transparent coated slide is located on the side of the color wheel away from the light emitter.

In one or more embodiments of the present invention, the projection apparatus further includes a wide-band transparent coated slide and another moving module. The other mobile module is configured to move a wide band of transparent coated slides to selectively pass light through or away from the wide band of transparent coated slides.

In one or more embodiments of the present invention, one of the narrow band filter and the wide band transparent coated slide is located on one side of the color wheel adjacent to the light emitter, and the narrow band filter and the wide band transparent coating The other of the slides is located on the side of the color wheel away from the light emitter.

In one or more embodiments of the present invention, the optical band of the wide-band transparent coated slide plate covers the optical band of the color wheel.

In one or more embodiments of the present invention, the narrow band filter is located on a side of the color wheel adjacent to the light emitter.

In one or more embodiments of the present invention, the narrow band filter described above is located on a side of the color wheel away from the light emitter.

In order to achieve the above object, in accordance with another embodiment of the present invention, a projection apparatus includes a light emitter, a concentrator, a plurality of active matrix transmissive LCDs, a light guiding component, a moving module, and a narrow band filter. The light emitter is configured to emit light. The light guide assembly is configured to direct light through the active matrix transmissive LCD to the concentrator. The mobile module is configured to move the narrow band filter to selectively pass light passing between the light emitter and the concentrator through or out of the narrow band filter.

In one or more embodiments of the present invention, the light guiding component includes a mirror and a beam splitting component. The light is directed by the light emitters through the mirror and the beam splitting assembly to the active matrix transmissive LCD.

In one or more embodiments, the narrow band filter is optically coupled between the light emitter and the mirror as the light passes through the narrow band filter.

In one or more embodiments, the narrow band filter is optically coupled between the mirror and the beam splitting component as the light passes through the narrow band filter.

In one or more embodiments, the light guiding component comprises a light combining aperture. The light is sequentially transmitted by the light emitter through the active matrix transmissive LCD and the combined light to the concentrator. When the light passes through the narrow band filter, the narrow band filter is optically coupled between the combined aperture and the concentrator.

In summary, the projection device of the present invention adopts a single color wheel, and uses the mobile module to move the narrow band filter narrower than the color wheel, so that the narrow band filter can be selectively located at or away from the light emitter. The optical path, in turn, uses a narrow band filter to switch the light provided by the projection device to a different color gamut range. When the mobile module moves the narrow band filter to the optical path of the light emitter, the projection device can provide an image with a wide color gamut; when the mobile module moves the narrow band filter away from the light path of the light emitter, The projection device is made to provide an image with high brightness.

The above description is only used to explain the problems to be solved by the present invention, the technical means for solving the problems, the effects thereof, and the like, and the specific details of the present invention will be described in detail in the following embodiments and related drawings.

In the following, a plurality of embodiments of the present invention will be disclosed in the drawings. For the sake of clarity, a number of practical details will be described in the following description. However, it should be understood that these practical details are not applied to limit the creation. That is to say, in the implementation part of this creation, these practical details are not necessary. In addition, some of the conventional structures and elements are shown in the drawings in a simplified schematic manner in order to simplify the drawings.

Please refer to Figure 1A and Figure 1B. FIG. 1A is a schematic diagram showing some components of a projection apparatus 100 according to an embodiment of the present invention, in which light does not pass through the narrow band filter 130. FIG. 1B is another schematic diagram showing the structure of FIG. 1A in which light passes through the narrow band filter 130. As shown in FIG. 1A and FIG. 1B , in the present embodiment, the projection apparatus 100 includes a color wheel 110 , a light emitter 120 , a narrow band filter 130 , a moving module 140 , a wide-band transparent coated slide 150 , and a set Lighter 160. The wide-band transparent coated slide 150 is a fully transparent and transparent glass with special coating dust. Light emitter 120 is configured to emit light through color wheel 110. The mobile module 140 is configured to move the narrow band filter 130 to selectively pass light through the narrow band filter 130 (as shown in FIG. 1B) or away from the narrow band filter 130 (as shown in FIG. 1A). Light emitted by the light emitter 120 passes through the wide-band transparent coated slide 150 and eventually reaches the concentrator 160. In some embodiments, the mobile module 140 can be implemented using a manual mechanism or an electronic lateral straight moving assembly, or can be achieved using a rotary moving assembly.

Please refer to Figures 2A to 2D. FIG. 2A is a diagram showing the relative radiant power-wavelength diagram of the light emitted by the light emitter 120 of the projection apparatus 100 of the present embodiment. FIG. 2B is a diagram showing the relative light transmittance-wavelength diagram of the color wheel 110 of the projection apparatus 100 according to the embodiment of the present invention. FIG. 2C is a diagram showing a relative light transmittance-wavelength diagram of the narrow band filter 130 of the projection apparatus 100 according to the embodiment of the present invention. FIG. 2D is a diagram showing the relative transmittance-wavelength diagram of the wide-band transparent coated slide 150 of the projection apparatus 100 of the present embodiment. As shown in FIG. 2A, the light emitted by the light emitter 120 has substantially three wavelength peaks, and the wavelengths are short to long (ie, left to right in FIG. 2A) corresponding to blue light, green light, and red light, respectively. In the present embodiment, the frequency of the light emitted by the light emitter 120 ranges from about 380 nm to 780 nm, but the present invention is not limited thereto.

As can be seen from FIGS. 2B and 2C, the optical band of the color wheel 110 covers the optical band of the narrow band filter 130. Specifically, as shown in FIG. 2B, the color wheel 110 has three light-passing regions and has three large light-passing bands, respectively, and the three wavelength peaks of the light shown in FIG. 2A are respectively located at the three. Within a larger optical band. In addition, as shown in FIG. 2C, the narrow band filter 130 has three smaller optical pass bands, and the three larger optical bands shown in FIG. 2B respectively cover the three smaller optical pass bands.

It can be seen from FIG. 2B and FIG. 2D that the optical band of the wide-band transparent coated slide 150 covers the optical band of the color wheel 110. Specifically, as shown in FIG. 2D, the optical band of the wide-band transparent coated slide 150 is a single continuous band and is in the range of between about 380 nm and 780 nm.

Please refer to FIG. 3A, which is a color gamut diagram showing the combination of the light emitted by the light emitter 120 through the combination of the wide-band transparent coated slide 150 and the color wheel 110. Specifically, as shown in FIG. 3A, the area A1 represents the CIE 1931 color space, the area A2 represents the SMPTE 240M standard color space, and the area A3 represents the light passing through the wide-band transparent coated glass 150 and the color wheel. The color space after the combination of 110.

Under the foregoing structural and optical characteristic configuration, when the mobile module 140 moves the narrow band filter 130 such that the light emitted by the light emitter 120 passes through the wide-band transparent coated slide 150 and the color wheel 110 to reach the concentrator 160. (As shown in Fig. 1A), since the light passing through the wide-band transparent coated glass plate 150 passes through the full frequency, a high brightness effect is produced. Moreover, as can be seen from FIG. 3A, the area A3 does not completely cover the area A2, so it can be clearly seen that the light reaching the concentrator 160 through the wide-band transparent coated slide 150 and the color wheel 110 has a narrow color gamut. The reason for this is that after the light passes through the wide-band transparent coated glass slide 150, the three primary colors with higher brightness but less purity can be obtained, so that only the color space of the narrow color gamut (ie, the area A3) can be mixed. Thereby, the projection device 100 can be made to provide an image with high brightness.

Please refer to FIG. 3B , which is a color gamut diagram showing the combination of the narrow band filter 130 and the color wheel 110 by the light emitted by the light emitter 120 . Specifically, as shown in FIG. 3B, the area A4 represents a color space in which light passes through the combination of the narrow band filter 130 and the color wheel 110.

Under the foregoing structural and optical characteristic configuration, when the mobile module 140 moves the narrow band filter 130, the light emitted by the light emitter 120 passes through the narrow band filter 130, the wide band transparent coated slide 150 and the color wheel 110. When the light concentrator 160 is reached (as shown in FIG. 1B), although the light passing through the wide-band transparent coated slide 150 is full-frequency passage, since the light passing through the narrow-band filter 130 passes through the local frequency band, it is low. The effect of brightness. Moreover, as can be seen from FIG. 3B, the area A4 completely covers the area A2, so that it can be clearly seen that the light reaching the concentrator 160 through the narrow-band filter 130, the wide-band transparent coated slide 150 and the color wheel 110 has a wider color. area. The reason for this is that after the light passes through the narrow-band filter 130, the three primary colors of lower brightness but purer can be obtained, so that the color space of the wide color gamut (ie, the area A4) can be mixed. Thereby, the projection apparatus 100 can be made to provide an image having a wide color gamut.

Referring to FIG. 1A and FIG. 1B , in the embodiment, the wide-band transparent coated slide 150 , the narrow-band filter 130 and the moving module 140 are both located on the side of the color wheel 110 adjacent to the light emitter 120 , wherein the narrow The band filter 130 is closer to the light emitter 120 than the mobile module 140, and the wide-band transparent coated slide 150 is closer to the color wheel 110, but the present invention is not limited thereto. In some embodiments, the wide-band transparent coated slide 150 can be closer to the light emitter 120, and the narrow-band filter 130 and the moving module 140 can be closer to the color wheel 110.

Please refer to FIG. 4A and FIG. 4B. FIG. 4A is a schematic diagram showing some components of the projection apparatus 100 of another embodiment of the present invention, in which light does not pass through the narrow band filter 130. FIG. 4B is another schematic diagram showing the structure of FIG. 4A in which light passes through the narrow band filter 130. It should be noted that the difference between the embodiment and the embodiment shown in FIG. 1A is that the narrow band filter 130 and the mobile module 140 in the embodiment are located on the side of the color wheel 110 adjacent to the light emitter 120. And the wide-band transparent coated slide 150 is located on the side of the color wheel 110 away from the light emitter 120.

Please refer to Figure 5A and Figure 5B. FIG. 5A is a schematic diagram showing some components of the projection apparatus 100 of another embodiment of the present invention, in which light does not pass through the narrow band filter 130. FIG. 5B is another schematic diagram showing the structure of FIG. 5A in which light passes through the narrow band filter 130. It should be noted that the difference between the embodiment and the embodiment shown in FIG. 1A is that the wide-band transparent coated slide 150, the narrow-band filter 130 and the mobile module 140 are all located in the color wheel in the embodiment. 110 is away from the side of the light emitter 120, wherein the narrow band filter 130 and the moving module 140 are closer to the color wheel 110, and the wide band transparent coated glass plate 150 is closer to the concentrator 160, but this creation does not limit. In some embodiments, the wide-band transparent coated slide 150 can be closer to the color wheel 110, and the narrow-band filter 130 and the mobile module 140 can be closer to the concentrator 160.

Please refer to Figure 6A and Figure 6B. FIG. 6A is a schematic diagram showing some components of the projection apparatus 100 of another embodiment of the present invention, in which light does not pass through the narrow band filter 130. FIG. 6B is another schematic diagram showing the structure of FIG. 6A in which light passes through the narrow band filter 130. It should be noted that the difference between the embodiment and the embodiment shown in FIG. 1A is that the wide-band transparent coated slide 150 in the embodiment is located on the side of the color wheel 110 adjacent to the light emitter 120, and is narrow. The band filter 130 and the mobile module 140 are located on a side of the color wheel 110 remote from the light emitter 120.

Please refer to Figure 7A and Figure 7B. FIG. 7A is a schematic diagram showing some components of a projection apparatus 200 according to another embodiment of the present invention, in which light passes through the wide-band transparent coated slide 150 and does not pass through the narrow-band filter 130. FIG. 7B is another schematic diagram showing the structure of FIG. 7A in which light passes through the narrow band filter 130 and does not pass through the wide band transparent coated slide 150. It should be noted that the difference between the embodiment and the embodiment shown in FIG. 1A is that the projection apparatus 200 of the present embodiment further includes another movement module 240. The other mobile module 240 is configured to move the wide-band transparent coated slide 150 to selectively pass light through or away from the wide-band clear coated slide 150. In addition, in the embodiment, the wide-band transparent coated slide 150, the narrow-band filter 130, and the moving modules 140, 240 are all located on the side of the color wheel 110 adjacent to the light emitter 120, wherein the narrow-band filter 130 and the movement The module 140 is closer to the light emitter 120, and the wide-band transparent coated slide 150 and the moving module 240 are closer to the color wheel 110, but the creation is not limited thereto. In some embodiments, the wide-band transparent coated slide 150 and the moving module 240 may be closer to the light emitter 120, and the narrow-band filter 130 and the moving module 140 may be closer to the color wheel 110. In some embodiments, the mobile module 240 can be implemented using a manual mechanism or an electronic lateral straight moving assembly, or can be achieved using a rotary moving assembly.

Please refer to Figure 8A and Figure 8B. FIG. 8A is a schematic diagram showing some components of a projection apparatus 200 according to another embodiment of the present invention, in which light passes through the wide-band transparent coated slide 150 and does not pass through the narrow-band filter 130. FIG. 8B is another schematic diagram showing the structure of FIG. 8A in which light passes through the narrow band filter 130 and does not pass through the wide band transparent coated slide 150. It should be noted that the difference between the embodiment and the embodiment shown in FIG. 7A is that the narrow band filter 130 and the mobile module 140 in the embodiment are located on the side of the color wheel 110 adjacent to the light emitter 120. The wide-band transparent coated slide 150 and the moving module 240 are located on the side of the color wheel 110 away from the light emitter 120.

Please refer to Figure 9A and Figure 9B. FIG. 9A is a schematic diagram showing some components of a projection apparatus 200 according to another embodiment of the present invention, in which light passes through the wide-band transparent coated slide 150 and does not pass through the narrow-band filter 130. FIG. 9B is another schematic diagram showing the structure of FIG. 9A in which light passes through the narrow band filter 130 and does not pass through the wide band transparent coated slide 150. It should be noted that the difference between the embodiment and the embodiment shown in FIG. 7A is that the wide-band transparent coated slide 150, the narrow-band filter 130, and the moving modules 140 and 240 are located in the embodiment. The color wheel 110 is away from the side of the light emitter 120, wherein the narrow band filter 130 and the moving module 140 are closer to the color wheel 110, and the wide band transparent coated glass plate 150 and the moving module 240 are closer to the concentrator 160, but This creation is not limited to this. In some embodiments, the wide-band transparent coated slide 150 and the moving module 240 may be closer to the color wheel 110, and the narrow-band filter 130 and the moving module 140 may be closer to the concentrator 160.

Please refer to Figure 10A and Figure 10B. FIG. 10A is a schematic diagram showing some components of a projection apparatus 200 according to another embodiment of the present invention, in which light passes through the wide-band transparent coated slide 150 and does not pass through the narrow-band filter 130. FIG. 10B is another schematic diagram showing the structure of FIG. 10A in which light passes through the narrow band filter 130 and does not pass through the wide band transparent coated slide 150. It should be noted that the difference between the embodiment and the embodiment shown in FIG. 7A is that the wide-band transparent coated slide 150 and the moving module 240 in the embodiment are located adjacent to the light emitter 120 of the color wheel 110. One side, and the narrow band filter 130 and the mobile module 140 are located on the side of the color wheel 110 away from the light emitter 120.

It should be particularly noted that in the embodiments shown in FIGS. 7A-10B, the light emitters 120 can be transmitted by cooperative cooperation of the mobile modules 140, 240 (eg, by software manipulation). The light passes through the wide-band transparent coated slide 150 and the narrow-band filter 130 at the same time. Thereby, compared to the embodiment in which the light passes through the wide-band transparent coated slide 150 and the narrow-band filter 130 (as shown in FIGS. 1A to 6B), the implementation shown in FIGS. 7A to 10B The way to reduce the light loss (because of the narrow pass transparent coated slide 150).

Please refer to Figure 11A and Figure 11B. 11A is a schematic diagram showing some components of a projection apparatus 300 according to another embodiment of the present invention, in which light passes through the wide-band transparent coated slide 150 and does not pass through the narrow-band filter 130. FIG. 11B is another schematic diagram showing the structure of FIG. 11A in which light passes through the narrow band filter 130 and does not pass through the wide band transparent coated slide 150. It should be noted that the difference between the embodiment and the embodiment shown in FIG. 1A is that the mobile module 140 of the present embodiment is further configured to move the wide-band transparent coated slide 150, thereby selectively enabling light. Light emitted by the emitter 120 passes through or exits the wide-band transparent coated slide 150. Specifically, in the embodiment, the mobile module 140 is further configured to simultaneously move the narrow band filter 130 and the wide band transparent coated slide 150, thereby selectively passing the light through the narrow band filter 130 and the wide band transparent. One of the coated slides 150. For example, the narrow band filter 130 is coupled to the wide band transparent coated slide 150, so the mobile module 140 can simultaneously move the narrow band filter 130 and the wide band transparent coated slide 150.

In addition, in the present embodiment, the wide-band transparent coated slide 150, the narrow-band filter 130, and the moving module 140 are both located on the side of the color wheel 110 adjacent to the light emitter 120, but the present invention is not limited thereto.

Please refer to Figure 12A and Figure 12B. FIG. 12A is a schematic diagram showing some components of a projection apparatus 300 according to another embodiment of the present invention, in which light passes through the wide-band transparent coated slide 150 and does not pass through the narrow-band filter 130. FIG. 12B is another schematic diagram showing the structure of FIG. 12A in which light passes through the narrow band filter 130 and does not pass through the wide band transparent coated slide 150. It should be noted that the difference between the embodiment and the embodiment shown in FIG. 11A is that the wide-band transparent coated slide 150, the narrow-band filter 130, and the mobile module 140 are all located in the color wheel in the embodiment. 110 is away from the side of the light emitter 120.

It should be particularly noted that the embodiment in which the wide-band transparent coated slide 150 and the narrow-band filter 130 are respectively driven by the mobile modules 140 and 240 (as shown in FIGS. 7A to 10B), The embodiment shown in Figures 11A through 12B can reduce the cost of construction (because the mobile module 240 is missing).

Please refer to Figure 13A and Figure 13B. FIG. 13A is a schematic diagram showing some components of a projection apparatus 400 according to another embodiment of the present invention, in which light does not pass through the narrow band filter 130. FIG. 13B is another schematic diagram showing the structure of FIG. 13A in which light passes through the narrow band filter 130. It should be noted that the difference between the present embodiment and the embodiment shown in FIG. 1A is that the wide-band transparent coated slide glass 150 in the embodiment shown in FIG. 1A is omitted in the present embodiment. Therefore, the projection device 400 of the present embodiment can also provide an image with a wide color gamut when the mobile module 140 moves the narrow band filter 130 to the optical path of the light emitter 120, and the narrow band in the mobile module 140. The filter 130 provides an image with high brightness when moving away from the optical path of the light emitter 120.

Please refer to Figure 14A and Figure 14B. FIG. 14A is a schematic diagram showing some components of a projection apparatus 400 according to another embodiment of the present invention, in which light does not pass through the narrow band filter 130. Figure 14B is another schematic diagram showing the structure of Figure 14A with light passing through the narrow band filter 130. It should be noted that the difference between the present embodiment and the embodiment shown in FIG. 5A is that the wide-band transparent coated slide glass 150 in the embodiment shown in FIG. 5A is omitted in the present embodiment. Therefore, the projection device 400 of the present embodiment can also provide an image with a wide color gamut when the mobile module 140 moves the narrow band filter 130 to the optical path of the light emitter 120, and the narrow band in the mobile module 140. The filter 130 provides an image with high brightness when moving away from the optical path of the light emitter 120.

Please refer to FIG. 15 , which is a schematic diagram showing some components of a projection apparatus 500 according to another embodiment of the present invention. The projection device 500 of the present embodiment is a three-piece projector comprising a light emitter 120, a concentrator 160, a polarization converter 510, a light guiding component, a plurality of active matrix transmissive LCDs 540a, 540b, and 540c, and a moving Module 140 (not shown, reference to Figure 1A) and narrow band filter 130 (shown in phantom in the figure). The light guide assembly is configured to direct light through the active matrix transmissive LCDs 540a, 540b, and 540c to the concentrator 160. The mobile module 140 is configured to move the narrow band filter 130 to selectively pass light passing between the light emitter 120 and the concentrator 160 through or away from the narrow band filter 130.

Specifically, the light guiding component includes a mirror 520a, a beam splitting component, and a combining unit 560. The light is sequentially transmitted by the light emitter 120 to the active matrix transmissive LCDs 540a, 540b, and 540c via the polarization converter 510, the mirror 520a, and the beam splitting assembly. The beam splitting assembly includes mirrors 520b, 520c, and 520d, beam splitters 530a and 530b, and lenses 550a, 550b, 550c, 550d, 550e, and 550f. The optical path configuration of the three-piece projector can be referred to the optical path configuration of the projection device 500 shown in Fig. 15, and the functions of the aforementioned components will not be described in detail herein.

It should be noted that in some embodiments, the narrow band filter 130 is selectively optically coupled to one of the three optical path positions shown in FIG. That is, when the light passes through the narrow band filter 130, the narrow band filter 130 is optically coupled between the polarization converter 510 and the mirror 520a, optically coupled between the lens 550a and the beam splitter 530a of the beam splitting assembly, or optically coupled. Between the combined light 稜鏡 560 and the concentrator 160. Therefore, the projection device 500 of the present embodiment can also provide an image with a wide color gamut by optically coupling the narrow band filter 130 to one of the three optical path positions by the mobile module 140 as shown in FIG. 1A. An image with high brightness is provided when the mobile module 140 moves the narrow band filter 130 away from one of the three optical path positions.

From the above detailed description of the specific implementation of the present invention, it can be clearly seen that the projection device of the present invention adopts a single color wheel, and uses the mobile module to move the narrow-band filter narrower than the color wheel of the color wheel. The narrow band filter can be selectively located at or away from the optical path of the light emitter, thereby switching the light provided by the projection device to a different color gamut range using a narrow band filter. When the mobile module moves the narrow band filter to the optical path of the light emitter, the projection device can provide an image with a wide color gamut; when the mobile module moves the narrow band filter away from the light path of the light emitter, The projection device is made to provide an image with high brightness.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any person skilled in the art can make various changes and refinements without departing from the spirit and scope of the present creation. The scope is subject to the definition of the scope of the patent application.

100, 200, 300, 400, 500‧‧‧ projection devices
110‧‧‧ color wheel
120‧‧‧Light emitter
130‧‧‧Narrow band filter
140, 240‧‧‧Mobile Module
150‧‧‧ Wide band transparent coated slides
160‧‧‧ concentrator
510‧‧‧ Polarized light converter
520a, 520b, 520c, 520d‧‧‧ mirror
530a, 530b‧‧ ‧ beamsplitter
540a, 540b, 540c‧‧‧ active matrix penetrating LCD
550a, 550b, 550c, 550d, 550e, 550f‧‧ lens
560‧‧‧Hybrid
A1, A2, A3, A4‧‧‧ areas

The above and other objects, features, advantages and embodiments of the present invention can be more clearly understood. The description of the drawings is as follows: FIG. 1A is a schematic diagram showing a part of components of a projection apparatus according to an embodiment of the present invention. The light does not pass through the narrow band filter. Figure 1B is another schematic diagram showing the structure of Figure 1A with light passing through a narrow band filter. 2A is a diagram showing the relative radiant power-wavelength diagram of the light emitted by the light emitter of the projection device of the present embodiment. FIG. 2B is a diagram showing the relative light transmittance-wavelength diagram of the color wheel of the projection apparatus according to the embodiment of the present invention. FIG. 2C is a diagram showing a relative light transmittance-wavelength diagram of a narrow band filter of the projection device according to the embodiment of the present invention. FIG. 2D is a diagram showing the relative light transmittance-wavelength diagram of the wide-band transparent coated slide glass of the projection apparatus of the present embodiment. Figure 3A is a color gamut diagram showing the combination of a light beam emitted by a light emitter through a wide-band transparent coated slide and a color wheel. Figure 3B is a color gamut diagram showing the combination of a narrow band filter and a color wheel by light emitted by the light emitter. FIG. 4A is a schematic diagram showing some components of a projection apparatus according to another embodiment of the present invention, in which light does not pass through a narrow band filter. Figure 4B is another schematic diagram showing the structure of Figure 4A with light passing through a narrow band filter. FIG. 5A is a schematic diagram showing some components of a projection apparatus according to another embodiment of the present invention, in which light does not pass through a narrow band filter. Figure 5B is another schematic diagram showing the structure of Figure 5A with light passing through a narrow band filter. FIG. 6A is a schematic diagram showing some components of a projection apparatus according to another embodiment of the present invention, in which light does not pass through a narrow band filter. Figure 6B is another schematic diagram showing the structure of Figure 6A with light passing through a narrow band filter. FIG. 7A is a schematic diagram showing some components of a projection apparatus according to another embodiment of the present invention, in which light passes through a wide-band transparent coated slide without passing through a narrow-band filter. Figure 7B is another schematic diagram showing the structure of Figure 7A, in which light passes through a narrow band filter and does not pass through a wide band transparent coated slide. FIG. 8A is a schematic diagram showing some components of a projection apparatus according to another embodiment of the present invention, in which light passes through a wide-band transparent coated slide without passing through a narrow-band filter. Figure 8B is another schematic diagram showing the structure of Figure 8A in which light passes through a narrow band filter and does not pass through a wide band transparent coated slide. FIG. 9A is a schematic diagram showing some components of a projection apparatus according to another embodiment of the present invention, in which light passes through a wide-band transparent coated slide without passing through a narrow-band filter. Figure 9B is another schematic diagram showing the structure of Figure 9A, in which light passes through a narrow band filter and does not pass through a wide band transparent coated slide. FIG. 10A is a schematic diagram showing some components of a projection apparatus according to another embodiment of the present invention, in which light passes through a wide-band transparent coated slide without passing through a narrow-band filter. Figure 10B is another schematic diagram showing the structure of Figure 10A in which light passes through a narrow band filter and does not pass through a wide band transparent coated slide. 11A is a schematic view showing some components of a projection apparatus according to another embodiment of the present invention, in which light passes through a wide-band transparent coated slide without passing through a narrow-band filter. Figure 11B is another schematic diagram showing the structure of Figure 11A in which light passes through a narrow band filter and does not pass through a wide band transparent coated slide. FIG. 12A is a schematic diagram showing some components of a projection apparatus according to another embodiment of the present invention, in which light passes through a wide-band transparent coated slide without passing through a narrow-band filter. Figure 12B is another schematic diagram showing the structure of Figure 12A in which light passes through a narrow band filter and does not pass through a wide band transparent coated slide. FIG. 13A is a schematic diagram showing some components of a projection apparatus according to another embodiment of the present invention, in which light does not pass through a narrow band filter. Figure 13B is another schematic diagram showing the structure of Figure 13A, in which light passes through a narrow band filter. FIG. 14A is a schematic diagram showing some components of a projection apparatus according to another embodiment of the present invention, in which light does not pass through a narrow band filter. Figure 14B is another schematic diagram showing the structure of Figure 14A with light passing through a narrow band filter. FIG. 15 is a schematic view showing a part of components of a projection apparatus according to another embodiment of the present invention.

Claims (15)

A projection device comprising: a color wheel; a light emitter configured to emit a light through the color wheel; a narrow band filter, wherein a light band of the color wheel covers a light band of the narrow band filter; And a mobile module configured to move the narrow band filter to selectively pass the light through or away from the narrow band filter. The projection device of claim 1, further comprising a wide-band transparent coated slide, the moving module further configured to move the wide-band transparent coated slide, thereby selectively passing the light through or away from the Wide band transparent coated slides. The projection device of claim 2, wherein the mobile module is further configured to simultaneously move the narrow band filter and the wide band transparent coated slide, thereby selectively passing the light through the narrow band filter One of the wide coated transparent coated slides. The projection device of claim 1, further comprising a wide-band transparent coated slide glass, the light passing through the wide-band transparent coated slide, and the wide-band transparent coated slide is located adjacent to the light emitter of the color wheel One side. The projection device of claim 1, further comprising a wide-band transparent coated slide, the light passing through the wide-band transparent coated slide, and the wide-band transparent coated slide is located at the color wheel away from the light emitter One side. The projection device of claim 1, further comprising a wide-band transparent coated slide and another moving module, wherein the other moving module is configured to move the wide-band transparent coated slide, and then selectively The light is passed through or away from the wide-band transparent coated slide. The projection device of claim 6, wherein one of the narrow band filter and the wide band transparent coated slide is located on a side of the color wheel adjacent to the light emitter, and the narrow band filter is The other of the wide-band transparent coated slides is located on the side of the color wheel that is remote from the light emitter. The projection device of any one of claims 2 to 7, wherein the optical band of the wide-band transparent coated slide covers the optical band of the color wheel. The projection device of claim 1, wherein the narrow band filter is located on a side of the color wheel adjacent to the light emitter. The projection device of claim 1, wherein the narrow band filter is located on a side of the color wheel away from the light emitter. A projection device comprising: a light emitter configured to emit a light; a concentrator; a plurality of active matrix transmissive LCDs; a light directing component configured to direct the light through the active matrix The LCD arrives at the concentrator; a mobile module; and a narrow band filter, wherein the mobile module is configured to move the narrow band filter, thereby selectively transmitting the light emitter to the set The light between the light passes or leaves the narrow band filter. The projection device of claim 11, wherein the light guiding component comprises: a mirror; and a beam splitting component, wherein the light is sequentially sent by the light emitter through the mirror and the beam splitting component Active matrix transmissive LCD. The projection device of claim 12, wherein the narrow band filter is optically coupled between the light emitter and the mirror when the light passes through the narrow band filter. The projection device of claim 12, wherein the narrow band filter is optically coupled between the mirror and the beam splitting component when the light passes through the narrow band filter. The projection device of claim 11, wherein the light guiding component comprises a light-emitting device, and the light is sequentially sent by the light emitter through the active matrix transmissive LCD and the light-emitting device. The concentrator, and when the light passes through the narrow band filter, the narrow band filter is optically coupled between the combining yoke and the concentrator.