JP2007134269A - Light source device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a downsized light source device with high heat radiation effect, emitting light in color sequence. <P>SOLUTION: An LED 1 emitting red colored light, an LED 2 emitting green colored light, and an LED 3 emitting blue colored light (not illustrated) are arranged on almost one circumference of outer periphery of a rotating cylindrical rotation part 11a. The LED 1 to LED 3 are made to emit light successively while rotating the rotation part 11a. Since the LED 1 to LED 3 are made to emit light in time division, heat value and power consumption is restrained in comparison with a case of simultaneously lighting all LEDs at all time, and air current is generated around the LED 1 to LED 3 by the rotation of the rotation part 11a. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a color sequential light source that outputs light of different colors by switching color sequentially.

  A light source that emits light by sequentially switching light of a plurality of colors such as RGB light is known (see Patent Document 1). According to Patent Literature 1, an LED that emits R-color light, an LED that emits G-color light, and an LED that emits B-color light are arranged along the same circumference of a disk that is configured to be rotatable. A cylindrical light guide member is provided so as to face the surface. When the disk rotates, light from each color LED is output in color sequence via the light guide member.

JP-A-2005-84301

  When the light source of Patent Document 1 is further miniaturized, it is necessary to reduce the diameter of the disk and to narrow the LED mounting interval. In this case, the LEDs are densely packed, heat dissipation is deteriorated, and the temperature rises. In particular, it tends to be a problem when a large current is passed through the LED in order to increase the light emission luminance.

A light source device according to a first aspect of the present invention includes a rotatable cylindrical member, a first light emitting element that is disposed on an outer periphery of the cylindrical member and emits light of a first color in an outer diameter direction of the cylindrical member, and a cylinder A second light emitting element disposed on the same circumference as the first light emitting element and emitting light of a second color different from the first color in the outer diameter direction of the cylindrical member; and a cylinder having a cylindrical axis as a rotation axis Rotating means for rotating the member, and the first light-emitting element and the second light-emitting element so that the light from the first light-emitting element or the second light-emitting element is sequentially output in a predetermined outer diameter direction with the rotation of the cylindrical member. And a control means for controlling the light emission of the element.
A light source device according to a second aspect of the invention includes a rotatable cylindrical member, a first color filter that is disposed in a window of the cylindrical member and transmits light of the first color, and a first color filter in the cylindrical member. A second color filter that is disposed in a window on the same circumference and transmits light of a second color different from the first color, a blade member disposed on the inner periphery of the cylindrical member, and the first color And light emitting means for emitting light including the second color component in a predetermined outer diameter direction of the cylindrical member so as to pass through the first color filter or the second color filter, and rotating the cylindrical member around the cylindrical axis And rotating means for causing the light from the light emitting means to be output in color order in the outer diameter direction as the cylindrical member rotates.
A light source device according to a third aspect of the present invention includes a rotatable cylindrical member, a first light emitting element that is disposed on the inner periphery of the cylindrical member and emits light of the first color in the inner diameter direction of the cylindrical member, and a cylinder A second light emitting element disposed on the same circumference as the first light emitting element in the member and emitting light of a second color different from the first color in an inner diameter direction of the cylindrical member; and a cylindrical member having a cylindrical axis as a rotation axis Rotating means for rotating the first light emitting element and the second light emitting element so that the light from the first light emitting element or the second light emitting element is output in color order in the direction of the cylindrical axis as the cylindrical member rotates. And a reflecting member that bends the light.
A light source device according to a fourth aspect of the present invention includes a cylindrical member, a first light emitting element that is disposed on the inner periphery of the cylindrical member and emits light of the first color in the inner diameter direction of the cylindrical member, and the cylindrical member. A second light emitting element that is disposed on the same circumference as the first light emitting element and emits light of a second color different from the first color in the inner diameter direction of the cylindrical member, and rotates about the cylindrical axis as a rotation axis. And a reflecting member that bends the light from the first light emitting element and the second light emitting element so that the light from the first light emitting element or the second light emitting element is output in a color sequential manner in the cylindrical direction. To do.

  According to the present invention, it is possible to provide a color sequential output light source device that is small and has a high heat dissipation effect.

  The light source according to the present invention is used, for example, as a light source for a projector. The projector illuminates a light valve composed of a liquid crystal panel, a digital micromirror device, or the like with a light source, and projects an image of modulated light generated by the light valve. When a monochromatic light source is used, a monochromatic projection image is obtained, and when a light source that switches the three primary colors of light in color order is used, a color projection image is obtained from one system of light valves.

The best mode for carrying out the present invention will be described below with reference to the drawings.
(First embodiment)
FIG. 1 is an internal layout diagram of a liquid crystal projector according to a first embodiment of the present invention. In FIG. 1, a liquid crystal projector includes a color sequential light source 11, a Fresnel lens 12, a polarizing plate 13, a PBS (polarizing beam splitter) block 14, a reflective liquid crystal element (hereinafter referred to as LCOS) 15, a projection lens. 16 and a control circuit 17.

  The color sequential light source 11 emits color sequential light downward in FIG. The color sequential light is made substantially parallel light by the Fresnel lens 12 and then incident on the polarizing plate 13. The polarizing plate 13 converts (or extracts) incident light into linearly polarized light, and emits the converted (or extracted) polarized light toward the PBS block 14.

  The PBS block 14 is a polarization beam splitter in which a polarization separation unit 14a having an angle of 45 degrees with respect to the optical axis Ax of incident light is sandwiched between two triangular prisms. A polarized light beam (for example, P-polarized light) incident on the PBS block 14 passes through the PBS block 14 and illuminates the LCOS 15. The LCOS 15 is driven by a drive signal supplied from the control circuit 17 to reproduce an image or the like. Specifically, a voltage corresponding to the density of the image is applied to the liquid crystal layer for each pixel, the arrangement of liquid crystal molecules in the liquid crystal layer to which the voltage is applied is changed, and the light transmittance of the liquid crystal layer is in pixel units. It changes with.

  When the light transmitted through the LCOS 15 liquid crystal layer enters the LCOS 15, it travels downward through the liquid crystal layer, is reflected by the reflective surface of the LCOS 15, travels upward through the liquid crystal layer, and is emitted from the LCOS 15. 14 is incident again. Since the liquid crystal layer to which the voltage is applied functions as a phase plate, the light incident again on the PBS block 14 is a mixed light of modulated light that is S-polarized light and unmodulated light that is P-polarized light. The PBS block 14 reflects only the modulated light, which is the S-polarized component, of the re-incident light beam by the polarization separation unit 14 a and emits the light toward the left projection lens 16. The projection lens 16 projects a light image formed by the modulated light by the LCOS 15 onto a screen or the like.

  FIG. 2 is a diagram for explaining a main configuration of the color sequential light source 11. In the color sequential light source 11, a cylindrical rotating portion 11a is held between a fixed portion 11b and a fixed portion 11c so as to be rotatable about a center line O which is a cylindrical axis. LED1, LED2, and LED3 (not shown) as light-emitting elements are arranged on the outer periphery of the rotating part 11a so as to protrude from the outer peripheral surface at a central angle of about 120 degrees on substantially the same periphery.

  FIG. 3 is a diagram for explaining FIG. 2 in more detail. The fixing portion 11b is formed in a donut shape, and the motor M is inserted into the hole H at the center. The rotation of the motor M is controlled according to a control signal from the control circuit 17. The fixed portion 11c is formed in a disc shape, and a bearing Q is provided at the center.

  The rotating part 11 a is provided with rotating shafts at the upper part and the lower part along the center line O. The rotating shaft of the motor M is connected to the rotating shaft at the upper portion of the rotating portion 11a, and the rotating shaft at the lower portion of the rotating portion 11a is received by the bearing Q of the fixed portion 11c. Thereby, the rotating part 11a is rotationally driven by the motor M. LED1 to LED3 are composed of light emitting diodes. For example, LED1 emits R (red) color light, LED2 emits G (green) color light, and LED3 (not shown) emits B (blue) color light.

  A drive current is supplied to each of the LEDs 1 to 3 via the power supply wiring pattern Pa. The wiring pattern Pa is connected to the brush Bu at the upper part of the rotating part 11a, and is connected to the brush Bd at the lower part of the rotating part 11a. The brush Bu contacts the lower surface of the fixed portion 11b, and the brush Bd contacts the upper surface of the fixed portion 11c. Thereby, when the rotating part 11a rotates, the brushes Bu and Bd slide on the lower surface of the fixed part 11b and the upper surface of the fixed part 11c, respectively.

  On the lower surface of the fixed portion 11b and the upper surface of the fixed portion 11c, wiring patterns Pb and Pc are provided in the circumferential direction in the corresponding predetermined regions, respectively. A drive current is supplied from the control circuit 17 between the wiring patterns Pb and Pc. The current value to the LED is determined by the limiting resistor R. The limiting resistor R may be individually disposed for each color LED in the rotating section, or may be configured to be switched for each color LED by providing a current value switching means on a common circuit. When the drive current can be supplied by the control circuit 17, when the rotating part 11a rotates and the wiring patterns Pb and Pc are connected by the brushes Bu, Bd and the wiring pattern Pa, driving is performed via the wiring pattern Pa. Any one of the LEDs 1 to 3 that receives the current supply emits light. In the example of FIG. 3, the LEDs 1 to 3 emit light once each time the rotating portion 11 a rotates once, and R color light, G color light, and B color light are pulsed in color sequence. Light emitted from the LEDs 1 to 3 is emitted in the outer diameter direction of the rotating portion 11a (the left direction in FIG. 2 and the direction from the cylindrical axis O toward the wiring patterns Pb and Pc in FIG. 3). It is adjusted as follows.

According to the first embodiment described above, the following operational effects can be obtained.
(1) An LED 1 that emits R-color light, an LED 2 that emits G-color light, and an LED 3 that emits B-color light are disposed on substantially the same circumference of the outer periphery of the rotating cylindrical rotating portion 11a. While rotating the rotating part 11a, the LEDs 1 to 3 are made to emit light in color sequence. Compared to a disk in which LEDs are arranged as in the prior art, the surface area of the rotating part 11a is large even if the diameter is the same, so the effect of dissipating heat generated by the LEDs 1 to LED3 can be enhanced.

(2) Since each of the LEDs 1 to 3 emits light in a time-sharing manner, the amount of generated heat and power consumption can be suppressed as compared to the case where all the LEDs always emit light at the same time.

(3) Since the airflow is generated around the LEDs 1 to 3 by the rotation of the rotating unit 11a, it is not necessary to provide a blowing member such as a fan for blowing air to the LEDs 1 to 3 for cooling.

  When the color sequential light source 11 is used as a light source of a projector, a bright and high-quality projection image can be obtained by increasing the light emission luminance of the light source. Generally, when the current supplied to the light emitting element is increased in order to increase the light emission luminance of the light source, the heat generation amount of the light emitting element increases. Since the generated heat may cause a decrease in the light amount of the light emitting element or a shortening of the life of the light emitting element, it is preferable to cool the light emitting element so as to appropriately maintain the use temperature environment. For this reason, in a normal electronic device, cooling is performed using a heat radiating member or a blower member. In the first embodiment, the light emitting element is mounted on a cylindrical member having a surface area larger than that of a flat substrate (circular substrate) having the same diameter to enhance the heat dissipation effect, and then the blowing member is not used by rotating the cylindrical member. The heat dissipation effect is further enhanced.

(Second embodiment)
FIG. 4 is an internal layout diagram of the liquid crystal projector according to the second embodiment of the present invention. Compared to FIG. 1, a color sequential light source 110 is provided instead of the color sequential light source 11. FIG. 5 is a diagram for explaining a main configuration of the color sequential light source 110. In the color sequential light source 110, a cylindrical rotating portion 110a is rotatably held between a fixed portion 110b and a fixed portion 110c with a center line O that is a cylindrical axis as a rotation center. On the outer periphery of the rotating part 110a, window-like color filters FIL1, FIL2, and FIL3 (not shown) are arranged on approximately the same circumference every central angle of about 120 degrees. For example, the color filters FIL1 to FIL3 are configured to transmit R color light, transmit G color light, and transmit B color light, respectively.

  The fixed part 110b is configured in a donut shape, and a motor M (not shown) is inserted into a hole in the center part as in the first embodiment. The rotation of the motor M is controlled according to a control signal from the control circuit 17. The fixed part 110c is formed in a disk shape, and a bearing Q (not shown) is provided at the center part as in the first embodiment.

  As in the first embodiment, the rotating part 110a is provided with rotating shafts at the upper part and the lower part along the center line O. The rotating shaft of the motor M is connected to the rotating shaft at the upper portion of the rotating portion 110a, and the rotating shaft at the lower portion of the rotating portion 110a is received by the bearing Q of the fixed portion 110c. Thereby, the rotating part 110a is rotationally driven by the motor M.

  In FIG. 5, an LED 4 that emits white light is disposed on the upper surface of the fixed portion 110c. The direction of the light emitted from the LED 4 is determined from the rotating part 110a through the window-shaped color filters FIL1, FIL2, and FIL3 (not shown) in the outer diameter direction (left side in FIG. 5). It is adjusted so that it may be injected.

  A drive current is supplied from the control circuit 17 to the LED 4. The control circuit 17 supplies drive current to the LED 4 in synchronization with the rotation of the rotating unit 110a so that the LED 4 emits pulses at the timing when the color filters FIL1 to FIL1 pass through the space on the light emitting surface side of the LED 4. As a result, light that has passed through any of the color filters FIL1, FIL2, and FIL3 is emitted to the outside of the rotating unit 110a. In the example of FIG. 5, the LED 4 emits light three times during one rotation of the rotating unit 110a, thereby emitting R color light, G color light, and B color light one by one in color sequence.

  FIG. 6 is a cross-sectional view illustrating the inside of the rotating part 110a. The rotating part 110a has a blade member FIN inside, and generates an air flow when the rotating part 110a rotates. In the second embodiment, the LED 4 is cooled by this airflow. Note that the blade member FIN may be formed in a spiral shape in the rotating unit 110a. By configuring in a spiral shape, an air flow for cooling the LED 4 can be caused to flow in the direction of the center line O in the rotating portion 110a, and the cooling effect can be enhanced.

According to the second embodiment described above, the following operational effects can be obtained.
(1) A color filter FIL1 that transmits R-color light, a color filter FIL2 that transmits G-color light, and a color filter FIL3 that transmits B-color light are arranged in windows on substantially the same circumference of the rotating rotating portion 110a. Set up. The white LED 4 is caused to emit pulses in the rotating unit 110a while rotating the rotating unit 110a, thereby transmitting light from the LED 4 in order of colors from each of the color filters FIL1 to FIL3. Compared to the case where light emitting elements are provided for each color as in the prior art, the number of light emitting elements can be reduced.

(2) In the second embodiment, color sequential light can be obtained even when the white LED 4 is always lit. However, since the time-division emission is performed without always emitting light, the heat generation amount and the power consumption can be suppressed.

(3) The blade member FIN is provided inside the rotating unit 110a, and the LED 4 is cooled by an air flow generated by the rotation of the rotating unit 110a. Since cooling is possible without newly providing a blowing member such as a fan, the diameter of the rotating portion 110a can be made small and small.

  Instead of providing the blade member FIN inside the rotating part 110a, irregularities that generate airflow may be provided. When the wind noise caused by the blade member FIN is anxious due to the rotation of the rotating unit 110a, the generation of sound can be suppressed by making the surface shape smoother than the blade member FIN.

(Modification 1)
Although the example which arrange | positions white LED4 in the space in the cylindrical rotation part 110a was demonstrated, you may comprise so that it may arrange | position on the upper surface of the fixing | fixed part 110c. In this case, the light from the LED 4 is emitted upward (from the fixed portion 110c into the rotating portion 110a) along the center line O. A reflection mirror for bending the light from the LED 4 in the outer diameter direction of the rotating part 110a is further disposed on the fixed part 110c. The control circuit 17 supplies a drive current to the LED 4 in synchronization with the rotation of the rotating unit 110a so that the LED 4 emits pulses at a timing when the color filters FIL1 to FIL1 pass through the space on the emission light side of the reflection mirror. As a result, light that has passed through any of the color filters FIL1, FIL2, and FIL3 is emitted to the outside of the rotating unit 110a.

(Third embodiment)
FIG. 7 is an internal layout diagram of the liquid crystal projector according to the third embodiment of the present invention. Compared to FIG. 1, a color sequential light source 120 is provided instead of the color sequential light source 11, and the Fresnel lens 12 is omitted. FIG. 8 is a diagram for explaining a main configuration of the color sequential light source 120. In the color sequential light source 120, a cylindrical rotating part 120a is rotatably held on a fixed part 120c around a center line O that is a cylindrical axis. LED1, LED2, and LED3 (not shown) are provided on the inner peripheral surface so as to protrude from the inner peripheral surface of the rotating portion 120a on approximately the same inner periphery.

  LED1 to LED3 are composed of light emitting diodes, for example, LED1 emits R color light, LED2 emits G color light, and LED3 (not shown) emits B color light. As in the first embodiment, LED1, LED2, and LED3 are each configured to emit light pulsed once each time the rotating unit 110a rotates once.

  The fixing part 120c is configured in a donut shape, and a motor M (not shown) is inserted into a hole in the center part as in the first embodiment. The rotation of the motor M is controlled according to a control signal from the control circuit 17. The rotating part 120b is formed in a donut shape integrally with the rotating part 120a, and a light collecting member 121 is disposed at the center thereof.

  In FIG. 8, a reflection mirror Mi is further disposed on the upper surface of the fixed portion 120c. The direction of the reflection mirror Mi is such that light emitted from the LED1, LED2, and LED3 (not shown) is bent in the cylindrical axis direction (upper side in FIG. 8) of the rotating unit 120a in the space inside the rotating unit 120a. It is adjusted to. As described above, the R color light, the G color light, and the B color light are output in the color sequential order in the cylindrical axis direction of the rotating unit 120a.

  The condensing member 121 turns the color sequential light bent by the reflecting mirror Mi into substantially parallel light. By providing the condensing member 121, the reflection mirror Mi may be configured to bend the R color light, the G color light, and the B color light to a position off the center line O.

  The color sequential light source 120 illustrated in FIG. 8 is used in the liquid crystal projector of FIG. 7 upside down.

According to the third embodiment described above, the following operational effects can be obtained.
(1) An LED 1 that emits R-color light, an LED 2 that emits G-color light, and an LED 3 that emits B-color light are disposed on substantially the same circumference of the inner circumference of the rotating cylindrical rotating portion 120a. While rotating the rotating unit 120a, each of the LEDs 1 to 3 is pulsed in color sequence. Similar to the first embodiment, since the surface area of the rotating part 120a is large, the effect of radiating the heat generated by the LEDs 1 to 3 is high.

(2) In the third embodiment, color sequential light can be obtained even when the LEDs 1 to 3 are always light-emitted. However, since the time-division emission is performed as in the first embodiment, the heat generation amount and the power consumption can be suppressed.

(3) Since the airflow is generated around the LEDs 1 to 3 by the rotation of the rotating unit 120a as in the first embodiment, it is not necessary to provide a blowing member such as a fan in order to blow air to the LEDs 1 to LED3.

(4) The light emitted from the LED1, LED2, and LED3 (not shown) is bent by the reflecting mirror Mi disposed on the upper surface of the fixed portion 120c, and the color is directed toward the cylindrical axis of the rotating portion 120a (upper side in FIG. 8). Since light is sequentially emitted, for example, the liquid crystal projector of FIG. 7 can be easily incorporated into a pencil-shaped cylindrical housing.

(Fourth embodiment)
FIG. 9 is an internal layout diagram of the liquid crystal projector according to the fourth embodiment of the present invention. 7 differs from FIG. 7 in that a color sequential light source 130 is provided instead of the color sequential light source 120. FIG. 10 is a diagram for explaining a main configuration of the color sequential light source 130. The color sequential light source 130 includes a cylindrical fixed portion 130a and a disk-shaped rotating portion 130b that is rotatable about a center line O that is a cylindrical axis of the fixed portion 130a. Similarly to FIG. 8, LED1, LED2, and LED3 (not shown) are provided on the inner peripheral surface so as to protrude from the inner peripheral surface of the rotating portion 130a on the substantially same circumference as in FIG.

  LED1 to LED3 are each composed of a light emitting diode, for example, LED1 emits R color light, LED2 emits G color light, and LED3 (not shown) emits B color light. As in the first and third embodiments, LED1, LED2, and LED3 are each configured to emit light pulsed once each time the rotating unit 130b rotates once.

  The rotating unit 130b is rotationally driven by a motor M (not shown). The rotation of the motor M is controlled according to a control signal from the control circuit 17. A reflection mirror Mi is disposed on the upper surface of the rotating unit 130b. The direction of the reflecting mirror Mi is such that light emitted from the LED1, LED2, and LED3 (not shown) in the space inside the fixed portion 130a is bent and emitted in the axial direction (upward in FIG. 10) around which the rotating portion 130b rotates. It is adjusted to. As described above, the R color light, the G color light, and the B color light are output in the axial direction in which the rotating unit 130b rotates in color sequence.

  A condensing member 131 is disposed on the upper portion of the fixed portion 130a. The condensing member 131 turns the color sequential light bent by the reflecting mirror Mi into substantially parallel light. Therefore, the reflection mirror Mi may be configured to bend the R color light, the G color light, and the B color light to a position off the center line O.

  The color sequential light source 130 illustrated in FIG. 10 is used in the liquid crystal projector of FIG. 9 upside down.

According to the fourth embodiment described above, the following operational effects can be obtained.
(1) An LED 1 that emits R-color light, an LED 2 that emits G-color light, and an LED 3 that emits B-color light are disposed on the inner periphery of the cylindrical fixing portion 130a. Similar to the first and third embodiments, since the surface area of the fixed portion 130a is large, the effect of radiating the heat generated by the LEDs 1 to 3 is high.

(2) In the fourth embodiment, color sequential light can be obtained even when the LEDs 1 to 3 are always light-emitted. However, since the time-division emission is performed in the same manner as in the first and third embodiments, the heat generation amount and the power consumption can be suppressed.

(3) Since the air flow is generated around the LEDs 1 to 3 by rotating the reflecting mirror Mi inside the fixed portion 130a, it is not necessary to provide a blower member such as a fan in order to blow air to the LEDs 1 to LED3.

(4) The light emitted from LED1, LED2, and LED3 (not shown) is bent by the reflection mirror Mi disposed on the upper surface of the rotating unit 130b, and the color sequential light is emitted in the direction of the cylindrical axis around which the rotating unit 130b rotates. For example, the liquid crystal projector shown in FIG. 9 can be easily incorporated into a pencil-shaped cylindrical housing.

(Modification 2)
In the above description, an example has been described in which R color light, G color light, and B color light are each output once in color order each time the rotation unit in each embodiment rotates once. Instead of this, it is also possible to increase the number of LED groups or color filter groups arranged in the rotating unit so that color sequential light is output twice or more for each rotation of the rotating unit.

(Modification 3)
In the above description, the example in which the color sequential light is switched in the order of R (red) color, G (green) color, and B (blue) color has been described. However, the switching order may be different from the above example. Further, the present invention is not limited to three colors, and may be a multicolor configuration of two colors or four colors or more. For example, the color sequential light is configured to switch four colors in the order of R (red), G (green), B (blue), and W (white), or the color sequential light is R1 (red first) color, If 6 colors are switched in the order of R2 (second red) color, G1 (green first) color, G2 (green second) color, B1 (blue first) color, B2 (blue second) color, 3 Compared with color switching, the representable color space can be expanded.

  The above description is merely an example, and the interpretation of the invention is not limited to the correspondence between the components of the above-described embodiment and the components of the present invention.

FIG. 2 is an internal layout diagram of the liquid crystal projector according to the first embodiment. It is a figure explaining the principal part structure of a color sequential light source. FIG. 3 is a diagram for explaining FIG. 2 in more detail. FIG. 6 is an internal layout diagram of a liquid crystal projector according to a second embodiment. It is a figure explaining the principal part structure of a color sequential light source. It is sectional drawing explaining the inside of a rotation part. FIG. 6 is an internal layout diagram of a liquid crystal projector according to a third embodiment. It is a figure explaining the principal part structure of a color sequential light source. FIG. 10 is an internal layout diagram of a liquid crystal projector according to a fourth embodiment. It is a figure explaining the principal part structure of a color sequential light source.

Explanation of symbols

11 ... Color sequential light source 11a, 110a, 120a, 120b, 130b ... Rotating part 11b, 11c, 110b, 110c, 120c, 130a ... Fixed part 12 ... Fresnel lens 13 ... Polarizing plate 14 ... PBS block 15 ... LCOS
DESCRIPTION OF SYMBOLS 16 ... Projection lens 17 ... Control circuit FIL1-3 ... Color filter FIN ... Blade | wing member LED1-4 ... Light emitting element M ... Motor Mi ... Reflection mirror

Claims (4)

A rotatable cylindrical member;
A first light emitting element disposed on an outer periphery of the cylindrical member and emitting light of a first color in an outer diameter direction of the cylindrical member;
A second light emitting element disposed on the same circumference as the first light emitting element on the cylindrical member, and emitting light of a second color different from the first color in an outer diameter direction of the cylindrical member;
A rotating means for rotating the cylindrical member about a cylindrical axis as a rotation axis;
As the cylindrical member rotates, the first light emitting element and the second light emitting element emit light such that light from the first light emitting element or the second light emitting element is sequentially output in a predetermined outer diameter direction. A light source device comprising: control means for controlling. A rotatable cylindrical member;
A first color filter disposed in the window of the cylindrical member and transmitting light of a first color;
A second color filter disposed in a window on the same circumference as the first color filter in the cylindrical member and transmitting light of a second color different from the first color;
A blade member disposed on an inner periphery of the cylindrical member;
A light emitting means for emitting light including the first color component and the second color component in a predetermined outer diameter direction of the cylindrical member so as to pass through the first color filter or the second color filter;
A rotating means for rotating the cylindrical member about a cylindrical axis as a rotation axis;
The light source device is characterized in that light from the light emitting means is output in color order in the outer diameter direction as the cylindrical member rotates. A rotatable cylindrical member;
A first light emitting element disposed on an inner periphery of the cylindrical member and emitting light of a first color in an inner diameter direction of the cylindrical member;
A second light emitting element disposed on the same circumference as the first light emitting element in the cylindrical member, and emitting light of a second color different from the first color in an inner diameter direction of the cylindrical member;
A rotating means for rotating the cylindrical member about a cylindrical axis as a rotation axis;
The light from the first light-emitting element and the second light-emitting element so that the light from the first light-emitting element or the second light-emitting element is output in color sequential order in the cylindrical axis direction as the cylindrical member rotates. A light source device comprising: a reflection member that bends the light source. A cylindrical member;
A first light emitting element disposed on an inner periphery of the cylindrical member and emitting light of a first color in an inner diameter direction of the cylindrical member;
A second light emitting element disposed on the same circumference as the first light emitting element in the cylindrical member, and emitting light of a second color different from the first color in an inner diameter direction of the cylindrical member;
The first light-emitting element and the second light-emitting element are rotated so that light from the first light-emitting element or the second light-emitting element is output in color sequence in the cylindrical direction along with the rotation. A light source device comprising: a reflection member that bends light from the light emitting element.

Images