TW581929B - Color wheel - Google Patents

Abstract

A color wheel includes a motor body, a housing, a color filter and a balance-adjusting element. In this case, the housing is set at a side of the central axis of the motor body. The color filter is set on the housing. The balance-adjusting element is set on the color filter.

Description

581929

(1) [Technical Field to which the Invention belongs] The present invention relates to a color wheel, particularly a conventional color wheel. Department refers to a kind of application to projection (I), [Xianru technology] Due to the multiple requirements of large display area, miniaturization and light weight system, the image projection system has become one of the most popular sub-items in the optoelectronic industry.

Today's myocardial projection systems are divided into three major types, > LCDs (Llquid Crystal DispUy PrQjectc ^ 'up), Liquid Crystal LCDs (Liquid Crystal 〇n suic〇n, lc〇s) ) = And digital light source processor (Dlgltal Ught p ^ cessing, DU m true, crystalline silicon ⑯ crystal display * device and digital ★ source at the source has the advantage of early inter-classification, the following will use the digital light source processor as For example, 2 light source processors have become one of the new-generation projection systems due to their high brightness, correct tone reproduction, fast response time, no noise, and lightness, thinness, shortness, and smallness. The system adopts digital control, and at the same time, uses reflection

After collecting the light from the light source and focusing it through the lens, it is projected onto the digital micromirror wafer through the "2M color phosphor film" and you pull the nicr0-mirr0r Device (dmd). In this technology, the conventional and micromirror wafers are used to replace traditional LCD projectors. Responsible for: shovel: LCD panel. Because the digital micromirror wafer has many tiny j-moving lenses, the driving electrodes are used to control the tilt angle and deflection of the movable lens.

Page 8 581929 V. Description of the invention (2) Time, and then the image is projected by the lens by switching the reflection direction of the light. As mentioned above, the digital light source processor is provided with a color wheel 3 for generating colors. The color wheel 3 mainly includes a motor 31, a color filter 32, and a cover 33. Here, the motor 31 is mainly composed of a shaft cover 3 11 and a horse body 312. Among them, as shown in FIG. 1A, the cover 33 is coupled to the & color filter 32, so that the color filter 32 is located between the cover 33 and the motor 31. In addition, as shown in FIG. 1B, the cover sheet 33 is located between the motor 31 and the color filter 32. ~ Because the speed of general color wheel motors is higher than 7200 rpm, when the rotation = deviates from the axis of the rotation axis, that is, when the rotation center is not above the axis of the turning vehicle, each of the color wheel vibration and noise is likely to occur. It will also affect the reliability of operation. Because of this, the inventor, based on the spirit of active invention, thinks about a kind of "color wheel" that can solve the above problems. After several research experiments, I have completed this fast-benefiting invention. (3) [Content of the invention] It is possible to correct the center of rotation. The purpose of the present invention is to provide a color wheel. In order to achieve the above object, in the main body of the present invention, a shaft cover, and a color filter, the car cover is provided on the motor. The light-reflecting sheet is provided on the shaft cover; the light sheet is provided. A color wheel is provided, which includes a motor light sheet and a balance correction unit. One side of the axis / side of the body; the color balance correction unit is set in the color filter

Page 9 581929 V. Description of the invention (3) The present invention also covers and a balanced calibration is set on the motor. The calibration unit is placed on the shaft cover to verify that no additional one is needed to simplify the color wheel element system setting. The lottery is able to reduce big. In addition, this vibration and noise / C > positive single color wheel includes-a motor body, a shaft body: and a color filter 1, the shaft center, one side of the color center direction; balance correction The unit is set, and the two light plates are set on the balance correction unit. The forward rotation ^ f provides a color wheel, which uses the position of the jujube scale (the position of the second and the second. Compared with the conventional technology, the starting balance is 4 things), the rotation center of the color wheel can be corrected. Processing steps. Furthermore, the possibility of i being displayed on the balance correction sheet # ^ or between the color filter and the axis cover is not affected by the centrifugal force at the same time. The function of positive rotation center not only reduces the color Wheel, and further increase the reliability of operation. (IV) [Embodiment] A color wheel according to an embodiment of the present invention will be described below with reference to related drawings. As shown in FIG. 2, the color wheel i according to the first embodiment of the present invention includes a motor body 11, a shaft cover 12, a color filter 13, and a balance correction unit 14. Among them, the shaft center cover 12 is provided on one side of one axis direction of the motor body η; the color filter 1 3 is provided on the shaft center cover 12; the balance correction unit 1 4 is provided on the color filter 1 3 on. In this embodiment, the force and magnetic field of the circle (not shown in the figure) (not shown in the figure), and by virtue of this, the motor body 11 is mainly composed of a steel sheet (not shown). When the coil is energized, it is composed of the positive and negative currents. With a housing, a magnet in the figure) and a coil, the silicon steel sheet generates magnetic strength to allow the magnetic field to occur.

581929 V. Description of the invention (4) A rotating magnetic field, so that the magnet ring and the rotating magnetic field serve as 0 axis core covers. 12 is a change in the order of the car that is installed on the motor body 11, that is, it is used, and then turns. Figure 2; One side in the heart direction. In addition, in this embodiment, the color filters 13 are disposed on the shaft cover 12. Among them, the color filter 13 can be disposed on the shaft cover 12 by an adhesive method. Here, the color filter 13 may be a circular filter with a three-color fan-shaped glass plate of red, green, and blue, as shown in FIG. 3. In addition, the color filter 13 may be a circular filter formed by a plurality of blocks of red, green, and blue colors, or may be a red, green, and blue color plus white A circular filter formed by multiple blocks of a transparent block. Of course, the color filter 13 may also be a ring-shaped filter, as shown in FIG. 2. In this embodiment, the style and color combination of the color filters 13 are adjusted according to the actual situation. Please refer to FIG. 2 again. The balance correction unit 4 of this embodiment is provided on the color filter 13. At this point, the levels of equality are different, ^ ^ 1 ^ ^ τ..,, The center of gravity of the ten equivalence branch is 14 away from the central axis of the equivalence branch. Yu Taimei a, 丨 丄 1 t > σ In the embodiment of the spirit, as shown in FIG. 2, the balance = single: 14 is a ring body with a gap. When two 4! Can be; a discoid body with a gap, as shown in Figure 3. In addition, Zao Zhengzheng Fan 14 can also be used as a cover sheet for the bonding area between the scale 13 and the shaft cover 12. U ☆ The color filter is firstly sliced, and then the second slice is shown in Figures 2 and 3. The color wheel 1 of this embodiment further includes-positioning. The motor body 1 1 is provided with a positioning shaft. The electric wire (not shown in the figure) is driven by the spotted "% 片片 15series is connected with-mouth J /, redundant action (not shown in the figure),

Page 11 V. Description of the invention (5) ----- == The device is used to drive the motor body u, and rotates around the point (rotation axis) of the positioning piece 15 and the motor body u. IM / 于 # In this example, the rotation speed of the color wheel 1 is higher than 7200 rpm, so the color value is: After a period of time, the rotation center may be turned for a long time due to the use of: ^ axis 1 by the center (not shown) (Figure). When the center of rotation is not located in Yihedan ^ ^ Qian Gu Yi 造成 causes vibration and noise when turning ’At the same time J said the reliability of the shirt ringing operation. Rotate the center. ^^ ^ uses the balance correction unit 14 to correct the color wheel. The degree of displacement of the rotation center is determined by the position of the machine, and the position of the gap. In addition, the balance correction unit is integrated. The adjustment can be made according to the requirements of the dynamic balance of the color wheel 1 as shown in Figure 4: and As shown in FIG. 5, the second embodiment of the present invention is to provide a correction sheet = and one of the motor body 21, the ~, ~, a 4 of which, the shaft cover 22 is disposed on the shaft cover 22. ^ The m-balance correction unit 23 is provided. In the above description, the light sheet 24 is provided in the balance correction unit 23. In the present embodiment, there are more than 9 words in addition to the balance calibration, including a positioning sheet 25. The light sheet 24 is provided in Ping: 23 is set on the axis cover 22, and the same components as in one embodiment are different from those on the early 23, which is the same in this embodiment, and is no longer described here. Its features are the same as The functions are similar to the corresponding components. This description provides a color wheel, which uses a balance correction unit to 581929. 5. Description of the invention (6) Correct the position of the rotation center. Compared with the conventional technology, the present invention does not require additional One element (heavy object) can correct the rotation center of the color wheel. The processing steps of correction. Furthermore, the balance correction unit is arranged on the color filter or between the color filter and the axis cover, so as to reduce the possibility of collision and is not affected by centrifugal force. In addition, the invention has the function of correcting the rotation center, which not only reduces the occurrence of color wheel vibration and noise, but also further increases the reliability of operation.

The foregoing is exemplary only and not limiting. Any equivalent modification or change made without departing from the spirit and scope of the present invention shall be included in the scope of the attached patent application.

Page 13 581929 Brief description of the drawings (five), [Simplified description of the drawings] Fig. 1 A and Fig. 1 B are schematic side views of a conventional color wheel; Fig. 2 is a color wheel of the first embodiment of the present invention. A schematic diagram; FIG. 3 is another schematic diagram of the color wheel of the first embodiment of the present invention; FIG. 4 is a schematic diagram of the color wheel of the second embodiment of the present invention; and FIG. 5 is a schematic view of the color wheel of the second embodiment of the present invention Another schematic. [Illustration of Symbols] 1 Color wheel 11 Motor body 12 Shaft cover 13 Color filter 14 Balance correction unit 15 Positioning piece 2 Color wheel 21 Motor body 22 Shaft cover 23 Balance correction unit 24 Color filter 2 5 Positioning Sheet 3 Color wheel 31 Motor 3 11 Shaft cover 3 1 2 Motor body

Page 14 581929 Brief description of drawings 32 Color filters 33 Covers ΙϋΙΙΙ Page 15

Claims (1)

581929 VI. Scope of patent application-1 _ A color wheel includes: a motor body; a shaft cover, which is a color filter provided in the axial direction of the motor body, which is provided in the A shaft cover; and a balance correction unit, which is disposed on the color filter. 2. The color wheel according to item 1 of the scope of patent application, wherein the center of gravity of the balance correction unit is offset from the center axis of the balance correction unit. 3. The color wheel according to item 1 of the scope of patent application, wherein the balance correction unit is a ring body with a gap. 4. The color wheel according to item 1 of the scope of patent application, wherein the balance correction unit is a disc-shaped body with a notch. 5. The color wheel according to item 1 of the scope of patent application, wherein the balance correction unit is a cover sheet. 6 • The color wheel as described in item 丨 of the scope of patent application, more positioning piece ’The shaft of this motor is set on the positioning piece, including 0 / Color wheel, including: motor body; Page 16 581929 VI. Patent application scope A balance correction unit is provided on the shaft center cover; and a color filter is provided on the balance correction unit. 8 The color wheel according to item 7 of the scope of patent application, wherein the center of gravity of the balance correction unit is offset from the center axis of the balance correction unit. 9 The color wheel according to item 7 in the scope of patent application, wherein the balance correction unit is a ring body with a gap. 10 The color wheel according to item 7 of the scope of patent application, wherein the balance correction unit is a disc-shaped body with a notch. 11. The color wheel according to item 7 of the scope of patent application, wherein the balance correction unit is a cover sheet. 1 2. The color wheel as described in item 7 of the scope of patent application, further comprising a positioning piece on which the motor shaft is arranged. Page 17