US20200192203A1 - Optical module - Google Patents
Optical module Download PDFInfo
- Publication number
- US20200192203A1 US20200192203A1 US16/362,714 US201916362714A US2020192203A1 US 20200192203 A1 US20200192203 A1 US 20200192203A1 US 201916362714 A US201916362714 A US 201916362714A US 2020192203 A1 US2020192203 A1 US 2020192203A1
- Authority
- US
- United States
- Prior art keywords
- phosphor
- driving unit
- wheel
- color
- filter areas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 19
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 80
- 239000003086 colorant Substances 0.000 claims abstract description 25
- 238000010586 diagram Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 5
- MCSXGCZMEPXKIW-UHFFFAOYSA-N 3-hydroxy-4-[(4-methyl-2-nitrophenyl)diazenyl]-N-(3-nitrophenyl)naphthalene-2-carboxamide Chemical compound Cc1ccc(N=Nc2c(O)c(cc3ccccc23)C(=O)Nc2cccc(c2)[N+]([O-])=O)c(c1)[N+]([O-])=O MCSXGCZMEPXKIW-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
- G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/007—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light
- G02B26/008—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light in the form of devices for effecting sequential colour changes, e.g. colour wheels
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B33/00—Colour photography, other than mere exposure or projection of a colour film
- G03B33/08—Sequential recording or projection
Definitions
- the invention relates to an optical module and, more particularly, to an optical module capable of satisfying requirements of different color light output and different color gamut by controlling an overlap ratio between a phosphor area of a phosphor wheel and a filter area of a color wheel.
- a color wheel is a color source of a digital light processing (DLP) projector.
- DLP digital light processing
- a light emitted by a light source is reflected by a digital micromirror device (DMD) and then passes through the color wheel, so as to render different colors.
- the color wheel consists of a plurality of filters. When different color light output (CLO) is required, a central angle of the color filter has to be changed. Since the filters with different central angles have to be manufactured individually, the manufacture cost of the color wheel will increase.
- CLO color light output
- An objective of the invention is to provide an optical module capable of satisfying requirements of different color light output and different color gamut by controlling an overlap ratio between a phosphor area of a phosphor wheel and a filter area of a color wheel, so as to solve the aforesaid problems.
- an optical module comprises a light source, a phosphor wheel, a first driving unit, a color wheel, a second driving unit, a third driving unit and a control unit.
- the phosphor wheel is disposed corresponding to the light source and the phosphor wheel comprises a phosphor area.
- the first driving unit is configured to drive the phosphor wheel to rotate.
- the color wheel is disposed corresponding to the phosphor wheel and the color wheel comprises a plurality of sector-shaped filters.
- the sector-shaped filters are arranged in a circle and at least one of the sector-shaped filters comprises a plurality of filter areas. Central angles of the filter areas are identical and colors of at least two adjacent filter areas are different.
- the second driving unit is configured to drive the color wheel to rotate.
- the third driving unit is configured to drive the color wheel to move with respect to the phosphor wheel.
- the control unit is electrically connected to the first driving unit, the second driving unit and the third driving unit.
- the control unit controls the first driving unit to drive the phosphor wheel to rotate and controls the second driving unit to drive the color wheel to rotate
- the control unit selectively controls one of the first driving unit and the second driving unit by a delay time to control an overlap ratio between the phosphor area and one of the filter areas.
- the control unit selectively controls the third driving unit to drive the color wheel to move with respect to the phosphor wheel, so as to move one of the filter areas to a position corresponding to the phosphor area.
- the optical module of the invention controls the overlap ratio between the phosphor area of the phosphor wheel and the filter area of the color wheel by the delay time and controls the color wheel to move with respect to the phosphor wheel, so as to satisfy requirements of different color light output and different color gamut. Since the filter areas on the filter of the color wheel have identical central angles, the invention does not need to manufacture the filters with different central angles individually, such that the manufacture cost of the color wheel can be reduced effectively.
- FIG. 1 is a functional block diagram illustrating an optical module according to an embodiment of the invention.
- FIG. 2 is a schematic diagram illustrating the phosphor wheel shown in FIG. 1 .
- FIG. 3 is a schematic diagram illustrating the color wheel shown in FIG. 1 .
- FIG. 4 is a schematic diagram illustrating the colors of output light after the light passes through the phosphor wheel and the color wheel.
- FIG. 5 is another schematic diagram illustrating the colors of output light after the light passes through the phosphor wheel and the color wheel.
- FIG. 6 is another schematic diagram illustrating the colors of output light after the light passes through the phosphor wheel and the color wheel.
- FIG. 1 is a functional block diagram illustrating an optical module 1 according to an embodiment of the invention
- FIG. 2 is a schematic diagram illustrating the phosphor wheel 12 shown in FIG. 1
- FIG. 3 is a schematic diagram illustrating the color wheel 16 shown in FIG. 1
- FIG. 4 is a schematic diagram illustrating the colors of output light after the light passes through the phosphor wheel 12 and the color wheel 16
- FIG. 5 is another schematic diagram illustrating the colors of output light after the light passes through the phosphor wheel 12 and the color wheel 16
- FIG. 6 is another schematic diagram illustrating the colors of output light after the light passes through the phosphor wheel 12 and the color wheel 16 .
- the optical module 1 comprises a light source 10 , a phosphor wheel 12 , a first driving unit 14 , a color wheel 16 , a second driving unit 18 , a third driving unit 20 and a control unit 22 .
- the optical module 1 maybe applied to a projector or other optical devices to output various colors of light.
- the light source 10 may be, but not limited to, a laser.
- the first driving unit 14 is configured to drive the phosphor wheel 12 to rotate.
- the second driving unit 18 is configured to drive the color wheel 16 to rotate and the third driving unit 20 is configured to drive the color wheel 16 to move with respect to the phosphor wheel 12 .
- the first driving unit 14 , the second driving unit 18 and the third driving unit 20 may be, but not limited to, motors.
- the control unit 22 is electrically connected to the light source 10 , the first driving unit 14 , the second driving unit 18 and the third driving unit 20 .
- the control unit 22 may be a controller configured to control the light source 10 , the first driving unit 14 , the second driving unit 18 and the third driving unit 20 .
- the phosphor wheel 12 is disposed corresponding to the light source 10 and the color wheel 16 is disposed corresponding to the phosphor wheel 12 .
- the phosphor wheel 12 comprises a phosphor area 120 and a transparent area 122 .
- the phosphor area 120 is an area coated by a phosphor.
- the phosphor area 120 of the phosphor wheel 12 has a yellow phosphor for converting the blue light into a yellow light and the blue light can pass through the transparent area 122 immediately.
- the color of the light emitted by the light source 10 and the color of the phosphor area 120 may be determined according to practical applications, so the invention is not limited to the aforesaid embodiment.
- the color wheel 16 comprises a plurality of sector-shaped filters 160 , 162 , 164 and the sector-shaped filters 160 , 162 , 164 are arranged in a circle, wherein at least one of the sector-shaped filters comprises a plurality of filter areas, central angles of the filter areas are identical, and colors of at least two adjacent filter areas are different.
- the sector-shaped filter 160 may comprise two filter areas 160 a , 160 b , the central angles of the two filter areas 160 a , 160 b are identical, and the colors of the two filter areas 160 a , 160 b are different;
- the sector-shaped filter 162 may comprise two filter areas 162 a , 162 b , the central angles of the two filter areas 162 a , 162 b are identical, and the colors of the two filter areas 162 a , 162 b are different;
- the sector-shaped filter 164 may comprise one transparent area 1640 . It should be noted that the number of the sector-shaped filters and the number of the filter areas of each sector-shaped filter may be determined according to practical applications, so the invention is not limited to the aforesaid embodiment.
- the light source 10 may emit a primary color light
- the phosphor area 120 of the phosphor wheel 12 and the filter areas 160 a , 160 b , 162 a , 162 b of the sector-shaped filters 160 , 162 may have secondary colors.
- the phosphor area 120 of the phosphor wheel 12 may be yellow and the filter areas 160 a , 160 b , 162 a , 162 b of the sector-shaped filters 160 , 162 may be magenta or cyan.
- the filter areas 160 a , 160 b of the sector-shaped filter 160 may belong to an identical color system (e.g. magenta) and the filter areas 162 a , 162 b of the sector-shaped filter 162 may belong to an identical color system (e.g. cyan). Since the colors of the two filter areas 160 a , 160 b are different, the filter area 160 a may be deep magenta and the filter area 160 b may be light magenta. Similarly, since the colors of the two filter areas 162 a , 162 b are different, the filter area 162 a may be deep cyan and the filter area 162 b may be light cyan.
- an identical color system e.g. magenta
- the filter areas 162 a , 162 b of the sector-shaped filter 162 may belong to an identical color system (e.g. cyan). Since the colors of the two filter areas 160 a , 160 b are different, the filter area 160 a may be deep magenta and the filter area 160
- the filter areas 160 a , 160 b of the sector-shaped filter 160 may belong to different color systems and the filter areas 162 a , 162 b of the sector-shaped filter 162 may belong to different color systems.
- the filter area 160 a may be deep magenta
- the filter area 160 b may be light cyan
- the filter area 162 a may be deep cyan
- the filter area 162 b may be light magenta.
- each sector-shaped filter may be determined according to practical applications, so the invention is not limited to the aforesaid embodiment.
- the control unit 22 controls the first driving unit 14 to drive the phosphor wheel 12 to rotate and controls the second driving unit 18 to drive the color wheel 16 to rotate.
- the transparent area 122 of the phosphor wheel 12 corresponds to a part of the filter area 160 a of the color wheel 16 and the phosphor area 120 of the phosphor wheel 12 corresponds to another part of the filter area 160 a , the filter area 162 and the transparent area 1640 of the color wheel 16
- the colors of output light are shown in FIG. 4 after the light emitted by the light source 10 passes through the phosphor wheel 12 and the color wheel 16 .
- the light source 10 emits a blue light
- the phosphor area 120 is yellow
- the filter area 160 a is deep magenta
- the filter area 162 a is deep cyan. Consequently, the colors of output light are blue, deep red, deep green and yellow.
- the control unit 22 may selectively control one of the first driving unit 14 and the second driving unit 18 by a delay time to control an overlap ratio between the phosphor area 120 of the phosphor wheel 12 and one of the filter areas 160 a , 162 a of the color wheel 16 , so as to adjust the ratio of the colors of output light.
- the control unit 22 controls one of the first driving unit 14 and the second driving unit 18 by the delay time, the overlap ratio between the phosphor area 120 of the phosphor wheel 12 and the filter area 160 a of the color wheel 16 increases, such that the ratio of the output red light will increase. Accordingly, the invention can adjust the ratio of the colors of output light according to the requirement of different color light output.
- control unit 22 may selectively control the third driving unit 20 to drive the color wheel 16 to move with respect to the phosphor wheel 12 , so as to move one of the filter areas 160 a , 160 b , 162 a , 162 b to a position corresponding to the phosphor area 120 .
- control unit 22 may control the third driving unit 20 to drive the color wheel 16 to move with respect to the phosphor wheel 12 , so as to move the filter areas 160 b , 162 b to a position corresponding to the phosphor area 120 .
- the light source 10 emits a blue light
- the phosphor area 120 is yellow
- the filter area 160 b is light magenta
- the filter area 162 b is light cyan. Consequently, the colors of output light are light red, light green, yellow and blue. Accordingly, the invention can adjust the colors of output light according to the requirement of different color gamut.
- the optical module of the invention controls the overlap ratio between the phosphor area of the phosphor wheel and the filter area of the color wheel by the delay time and controls the color wheel to move with respect to the phosphor wheel, so as to satisfy requirements of different color light output and different color gamut. Since the filter areas on the filter of the color wheel have identical central angles, the invention does not need to manufacture the filters with different central angles individually, such that the manufacture cost of the color wheel can be reduced effectively.
Abstract
Description
- The invention relates to an optical module and, more particularly, to an optical module capable of satisfying requirements of different color light output and different color gamut by controlling an overlap ratio between a phosphor area of a phosphor wheel and a filter area of a color wheel.
- A color wheel is a color source of a digital light processing (DLP) projector. A light emitted by a light source is reflected by a digital micromirror device (DMD) and then passes through the color wheel, so as to render different colors. In general, the color wheel consists of a plurality of filters. When different color light output (CLO) is required, a central angle of the color filter has to be changed. Since the filters with different central angles have to be manufactured individually, the manufacture cost of the color wheel will increase.
- An objective of the invention is to provide an optical module capable of satisfying requirements of different color light output and different color gamut by controlling an overlap ratio between a phosphor area of a phosphor wheel and a filter area of a color wheel, so as to solve the aforesaid problems.
- According to an embodiment of the invention, an optical module comprises a light source, a phosphor wheel, a first driving unit, a color wheel, a second driving unit, a third driving unit and a control unit. The phosphor wheel is disposed corresponding to the light source and the phosphor wheel comprises a phosphor area. The first driving unit is configured to drive the phosphor wheel to rotate. The color wheel is disposed corresponding to the phosphor wheel and the color wheel comprises a plurality of sector-shaped filters. The sector-shaped filters are arranged in a circle and at least one of the sector-shaped filters comprises a plurality of filter areas. Central angles of the filter areas are identical and colors of at least two adjacent filter areas are different. The second driving unit is configured to drive the color wheel to rotate. The third driving unit is configured to drive the color wheel to move with respect to the phosphor wheel. The control unit is electrically connected to the first driving unit, the second driving unit and the third driving unit. When the control unit controls the first driving unit to drive the phosphor wheel to rotate and controls the second driving unit to drive the color wheel to rotate, the control unit selectively controls one of the first driving unit and the second driving unit by a delay time to control an overlap ratio between the phosphor area and one of the filter areas. The control unit selectively controls the third driving unit to drive the color wheel to move with respect to the phosphor wheel, so as to move one of the filter areas to a position corresponding to the phosphor area.
- As mentioned in the above, the optical module of the invention controls the overlap ratio between the phosphor area of the phosphor wheel and the filter area of the color wheel by the delay time and controls the color wheel to move with respect to the phosphor wheel, so as to satisfy requirements of different color light output and different color gamut. Since the filter areas on the filter of the color wheel have identical central angles, the invention does not need to manufacture the filters with different central angles individually, such that the manufacture cost of the color wheel can be reduced effectively.
- These and other objectives of the present invention will no doubt become obvious to those of ordinary skill in the art after reading the following detailed description of the preferred embodiment that is illustrated in the various figures and drawings.
-
FIG. 1 is a functional block diagram illustrating an optical module according to an embodiment of the invention. -
FIG. 2 is a schematic diagram illustrating the phosphor wheel shown inFIG. 1 . -
FIG. 3 is a schematic diagram illustrating the color wheel shown inFIG. 1 . -
FIG. 4 is a schematic diagram illustrating the colors of output light after the light passes through the phosphor wheel and the color wheel. -
FIG. 5 is another schematic diagram illustrating the colors of output light after the light passes through the phosphor wheel and the color wheel. -
FIG. 6 is another schematic diagram illustrating the colors of output light after the light passes through the phosphor wheel and the color wheel. - Referring to
FIGS. 1 to 6 ,FIG. 1 is a functional block diagram illustrating an optical module 1 according to an embodiment of the invention,FIG. 2 is a schematic diagram illustrating thephosphor wheel 12 shown inFIG. 1 ,FIG. 3 is a schematic diagram illustrating thecolor wheel 16 shown inFIG. 1 ,FIG. 4 is a schematic diagram illustrating the colors of output light after the light passes through thephosphor wheel 12 and thecolor wheel 16,FIG. 5 is another schematic diagram illustrating the colors of output light after the light passes through thephosphor wheel 12 and thecolor wheel 16, andFIG. 6 is another schematic diagram illustrating the colors of output light after the light passes through thephosphor wheel 12 and thecolor wheel 16. - As shown in
FIG. 1 , the optical module 1 comprises alight source 10, aphosphor wheel 12, afirst driving unit 14, acolor wheel 16, asecond driving unit 18, athird driving unit 20 and acontrol unit 22. The optical module 1 maybe applied to a projector or other optical devices to output various colors of light. In this embodiment, thelight source 10 may be, but not limited to, a laser. Thefirst driving unit 14 is configured to drive thephosphor wheel 12 to rotate. Thesecond driving unit 18 is configured to drive thecolor wheel 16 to rotate and thethird driving unit 20 is configured to drive thecolor wheel 16 to move with respect to thephosphor wheel 12. In this embodiment, thefirst driving unit 14, thesecond driving unit 18 and thethird driving unit 20 may be, but not limited to, motors. Thecontrol unit 22 is electrically connected to thelight source 10, thefirst driving unit 14, thesecond driving unit 18 and thethird driving unit 20. In this embodiment, thecontrol unit 22 may be a controller configured to control thelight source 10, thefirst driving unit 14, thesecond driving unit 18 and thethird driving unit 20. - The
phosphor wheel 12 is disposed corresponding to thelight source 10 and thecolor wheel 16 is disposed corresponding to thephosphor wheel 12. As shown inFIG. 2 , thephosphor wheel 12 comprises aphosphor area 120 and atransparent area 122. In this embodiment, thephosphor area 120 is an area coated by a phosphor. For example, when thelight source 10 emits a blue light, thephosphor area 120 of thephosphor wheel 12 has a yellow phosphor for converting the blue light into a yellow light and the blue light can pass through thetransparent area 122 immediately. It should be noted that the color of the light emitted by thelight source 10 and the color of thephosphor area 120 may be determined according to practical applications, so the invention is not limited to the aforesaid embodiment. - As shown in
FIG. 3 , thecolor wheel 16 comprises a plurality of sector-shaped filters shaped filters shaped filter 160 may comprise twofilter areas filter areas filter areas shaped filter 162 may comprise twofilter areas filter areas filter areas shaped filter 164 may comprise onetransparent area 1640. It should be noted that the number of the sector-shaped filters and the number of the filter areas of each sector-shaped filter may be determined according to practical applications, so the invention is not limited to the aforesaid embodiment. - In this embodiment, the
light source 10 may emit a primary color light, and thephosphor area 120 of thephosphor wheel 12 and thefilter areas shaped filters light source 10 emits a blue light, thephosphor area 120 of thephosphor wheel 12 may be yellow and thefilter areas shaped filters - In this embodiment, the
filter areas shaped filter 160 may belong to an identical color system (e.g. magenta) and thefilter areas shaped filter 162 may belong to an identical color system (e.g. cyan). Since the colors of the twofilter areas filter area 160 a may be deep magenta and thefilter area 160 b may be light magenta. Similarly, since the colors of the twofilter areas filter area 162 a may be deep cyan and thefilter area 162 b may be light cyan. - In another embodiment, the
filter areas shaped filter 160 may belong to different color systems and thefilter areas shaped filter 162 may belong to different color systems. For example, thefilter area 160 a may be deep magenta, thefilter area 160 b may be light cyan, thefilter area 162 a may be deep cyan, and thefilter area 162 b may be light magenta. - It should be noted that the colors of the filter areas of each sector-shaped filter may be determined according to practical applications, so the invention is not limited to the aforesaid embodiment.
- When the optical module is operating, the
control unit 22 controls thefirst driving unit 14 to drive thephosphor wheel 12 to rotate and controls thesecond driving unit 18 to drive thecolor wheel 16 to rotate. When thetransparent area 122 of thephosphor wheel 12 corresponds to a part of thefilter area 160 a of thecolor wheel 16 and thephosphor area 120 of thephosphor wheel 12 corresponds to another part of thefilter area 160 a, thefilter area 162 and thetransparent area 1640 of thecolor wheel 16, the colors of output light are shown inFIG. 4 after the light emitted by thelight source 10 passes through thephosphor wheel 12 and thecolor wheel 16. In this embodiment, thelight source 10 emits a blue light, thephosphor area 120 is yellow, thefilter area 160 a is deep magenta, and thefilter area 162 a is deep cyan. Consequently, the colors of output light are blue, deep red, deep green and yellow. - When different color light output is required, the
control unit 22 may selectively control one of thefirst driving unit 14 and thesecond driving unit 18 by a delay time to control an overlap ratio between thephosphor area 120 of thephosphor wheel 12 and one of thefilter areas color wheel 16, so as to adjust the ratio of the colors of output light. As shown inFIG. 5 , after thecontrol unit 22 controls one of thefirst driving unit 14 and thesecond driving unit 18 by the delay time, the overlap ratio between thephosphor area 120 of thephosphor wheel 12 and thefilter area 160 a of thecolor wheel 16 increases, such that the ratio of the output red light will increase. Accordingly, the invention can adjust the ratio of the colors of output light according to the requirement of different color light output. - When different color gamut is required, the
control unit 22 may selectively control thethird driving unit 20 to drive thecolor wheel 16 to move with respect to thephosphor wheel 12, so as to move one of thefilter areas phosphor area 120. As shown inFIG. 6 , thecontrol unit 22 may control thethird driving unit 20 to drive thecolor wheel 16 to move with respect to thephosphor wheel 12, so as to move thefilter areas phosphor area 120. In this embodiment, thelight source 10 emits a blue light, thephosphor area 120 is yellow, thefilter area 160 b is light magenta, and thefilter area 162 b is light cyan. Consequently, the colors of output light are light red, light green, yellow and blue. Accordingly, the invention can adjust the colors of output light according to the requirement of different color gamut. - As mentioned in the above, the optical module of the invention controls the overlap ratio between the phosphor area of the phosphor wheel and the filter area of the color wheel by the delay time and controls the color wheel to move with respect to the phosphor wheel, so as to satisfy requirements of different color light output and different color gamut. Since the filter areas on the filter of the color wheel have identical central angles, the invention does not need to manufacture the filters with different central angles individually, such that the manufacture cost of the color wheel can be reduced effectively.
- Those skilled in the art will readily observe that numerous modifications and alterations of the device and method may be made while retaining the teachings of the invention. Accordingly, the above disclosure should be construed as limited only by the metes and bounds of the appended claims.
Claims (5)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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TW107144658A TWI685709B (en) | 2018-12-12 | 2018-12-12 | Optical module |
TW107144658 | 2018-12-12 | ||
TW107144658A | 2018-12-12 |
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US10684541B1 US10684541B1 (en) | 2020-06-16 |
US20200192203A1 true US20200192203A1 (en) | 2020-06-18 |
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US16/362,714 Active US10684541B1 (en) | 2018-12-12 | 2019-03-25 | Optical module |
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TW (1) | TWI685709B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2022162908A1 (en) * | 2021-01-29 | 2022-08-04 | オリンパスメディカルシステムズ株式会社 | Light source device, control method, and control program |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US9664361B2 (en) * | 2010-09-10 | 2017-05-30 | Martin Professional Aps | Light effect system for forming a light beam |
US9195123B2 (en) * | 2011-10-13 | 2015-11-24 | Texas Instruments Corporated | Projector light source and system, including configuration for display of 3D images |
TWI587066B (en) * | 2016-07-05 | 2017-06-11 | 台達電子工業股份有限公司 | Optical device |
CN105759549A (en) * | 2016-04-15 | 2016-07-13 | 苏州佳世达光电有限公司 | Coloured light generation component, projection device and projection method |
CN108267913B (en) * | 2016-12-30 | 2021-06-08 | 中强光电股份有限公司 | Light source module and projection device |
-
2018
- 2018-12-12 TW TW107144658A patent/TWI685709B/en not_active IP Right Cessation
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WO2022162908A1 (en) * | 2021-01-29 | 2022-08-04 | オリンパスメディカルシステムズ株式会社 | Light source device, control method, and control program |
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US10684541B1 (en) | 2020-06-16 |
TWI685709B (en) | 2020-02-21 |
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