TW200819900A - Optical projection subsystem - Google Patents

Abstract

A projection subsystem includes a light engine that provides a collection lens, a collimator and at least one solid state light emitter. A projection lens assembly receives the image and provides a projection beam having a luminous flux level. The projection subsystem has a portability efficacy.

Description

200819900 IX. Description of the invention: [Prior Art] An optical projector is used to project an image onto a surface for viewing by a crowd. The projector includes an optical projector; i ^ You Zishu ~ Yizizi system, the optical projector sub-system includes a lens, a filter, a polarized crying ^ y ^ 埚 为 is a precursor, an image forming apparatus and the like . It is known that fixed front-projection, 杈 仪 and Yuetou electronic projectors are used in the teaching month, the theater and business meetings. Known sources include stem lamps, gas discharge lamps, and solid state sources such as lasers, light emitting diodes, and organic light emitting diodes (D). It is known that the head-mounted display cryes O-dmo fine eddisplay, HMD) for individual use. For action = use, it is necessary to miniaturize the optical projector in terms of volume and thickness and make the optical projector extremely power efficient while maintaining low power consumption, low cost and high image quality. However, the large size and high power consumption of existing optical projection subsystems limit the effort to build true portable projectors. There is a need for a method and optical projection subsystem that provides miniaturization and efficiency from: projecting good quality images in a cost effective manner. SUMMARY OF THE INVENTION Disclosed is a projection subsystem. The projection subsystem includes: an illumination subsystem that provides a non-coherent, uniformed light. The illumination subsystem includes a collection lens, a collimator, and at least one solid state light emitter. The solid state light emitter receives electrical power levels and can be coupled to a heat sink. The projection subsystem includes an image forming device. The image forming apparatus receives image data and a polarized beam. The image forming apparatus provides a shadow to the refractor. I23352.doc 200819900 Image. The projection subsystem includes a projection lens assembly. The projection lens receives the image and provides an image projection beam having a luminous flux level. The projection system has a portability function, & 14 cm3 and a thickness of less than 14 mm. [Embodiment] "" For mobile applications, the shadow of the shadow size is 2 cm or less, and the shadow size is 12 cm or more. In order to be paid for good visibility, the additional features required for "through to" lumens and at least 30:1 contrast image quality may include a large number of parsing pixels, wide color gamut, and image uniformity. In terms of mobile applications, "portability, the small size, high power efficiency, and light output that will be determined..." is a combination of the special and the rebellious combination. Figure 1 is a diagram 100 of two aspects of the portability of the technology. Each projection subsystem " refers to a refractive or reflective optical component (such as a translucent optical component) used to provide a projected optical image-forming device and associated 十M. The vertical axis 102 represents the power efficiency of the projection subsystem with the celestial helmet σ applied to the light source as the early projection. The horizontal axis is the same as the 'rate' volume. The portability 108 rate increases by σ and increases with decreasing volume. When the power rate = and the volume is small, the projection subsystem has increased portability. The required features of the U system include high position in the projected image, large screen size, 斟tl_ _ ^ θ card 逋 (5) contrast, large Pixel content and wide color gamut. Figure i 之 Some of these features of different optical systems 123352.doc 200819900 ^ As described in the presently disclosed embodiments, a shirting subsystem with an incoherent light source can provide a usable combination of desired features. As shown in Fig. 1, the representative conventional projection subsystems A, C, D, and E are evaluated in terms of power efficiency and size and mapped to Fig. 1A. Subsystems eight and sub-systems, first c-pass ^ are better than 〇 and e in terms of power efficiency and size, but they use coherent laser light sources, 1 HAI and other coherent laser sources are low in cost and caused by laser spots. Defects in image quality and potential eye safety issues, especially in the event of electrical or mechanical failure. Subsystem d and subsystem boots use non-coherent LED light sources' which can overcome the defects of laser-based systems, but /, relatively large power efficiency or poor power efficiency and size, / enough to cause AI restrictions Portability. An exemplary projection subsystem of the present invention is shown in FIG. 1GG as a projection subsystem β that is relatively coherent light source and has a size smaller than that of subsystem D and subsystem E and greater than the efficiency of subsystem d and sub-system E. ^ Efficiency. When the projector design is miniaturized or scaled down, the ambient lighting level in the projection environment is not proportional, shrinking. A sufficient projected optical power level is required to provide a projected image that is sufficiently bright for the viewer to be present in the presence of ambient light. For example, if the size of the illumination source is to be miniaturized and the same electrical power level is to be applied to a smaller illumination source, an increased temperature rise will be encountered in the smaller illumination source, which can result in overheating. The optical efficiency of the projector optics needs to be optimized to scale down the electrical power level to avoid overheating the small illumination source without reducing the luminous flux of the projected image output. Although high power solid state lightning states with highly collimated, coherent light can be effectively improved to improve power efficiency, the use of coherent light may produce speckle, which reduces the quality of the projected image. In addition, the safety of the eye, Lu and / / one, the first use of the eye caused by electrical failure or mechanical failure conditions. = Description of the implementation of the financial statement, assembled with a modified combination of light in the ::: projection subsystem at the low level of quasi-electric power required high level of luminous flux. Avoiding day labor, biting the back of the W罟 avoids the portability of the use of coherent light sources. In detail, (4) m slave system components * text exempted * light through the conventional projector optics I, the majority of the work loss of optical loss. The projection subsystem disclosed in this document can operate in Figure 8 or m. The area 11〇 is limited to an efficiency of no more than 14 cubic A volume and no less than 1 watt 3.8 lumens. : Carrying:: Another measurement of force effect includes the projection subsystem along its thinnest axis. Although the projection subsystem has a thickness of less than 14 mm along the thickness axis, the projection subsystem is most suitable for use in pocket portable devices. . Can:: Another: Aspect is luminous flux. When the luminous flux is at least 3 lumens, the two sub-systems are suitable for use in a pocket-type portable device. From Figure 2, the brother of the projection (four). The projection subsystem is suitable for projection. You can use static or video images such as cell phones, personal digital assistants (PDAs), global positioning systems (10), and small electronic systems. The projection subsystem is adapted to receive electrical power and image data from a small electronic system (not illustrated in Figure 2). The shadow system 200 is embedded in the small electronic system. The projection subsystem 200 is suitable for component parts of small projector accessories that display computer video. The projection subsystem 200 is adapted for use in a system that is small enough to be carried in a pocket of a shirt pocket when not in use. By Projection: Projected images can be projected onto reflective projection screens, light painted walls, I23352.doc 200819900 whiteboard or paper or other known projection surfaces. The projection subsystem 2 can be embedded in, for example, a portable computer or mobile phone such as a laptop. Projection subsystem 200 includes a light engine 2〇2. Light engine 2〇2 provides a beam 204. The light engine includes a collection lens 2〇6, a collimator 2〇8, and a solid state light emitter 2 1 0. According to one aspect, the collecting lens 2〇6 comprises a super hemispherical ball lens. According to one aspect, the super hemispherical ball lens is configured as taught by U.S. Patent Publication No. US 2007/0152231. Resentful light launches 2 1 0 to receive electric power with an electric power level 21]. Solid-Emission 2 2 heat|禺 is connected to the heat sink 2 14 . A solid state light emitter provides an emitter beam having a transmitter flux level. According to one aspect, beam 204 contains incoherent light. According to another aspect, beam 2 〇 4 includes illumination of a portion of the focused image of solid state light emitter 210. According to yet another aspect, solid state light emitter 210 includes one or more light emitting diodes (Led). According to another aspect, the collecting lens 206 comprises a hemispherical spherical lens. According to another aspect, the collimator 208 includes a focusing unit, the focusing unit includes: a first Fresnel lens having a first non-polyhedron for receiving the first non-collimated beam and a first multi-faceted side for emitting a collimated beam; and a second Fresnel lens having a second non-polyhedral side for substantially directly receiving the collimated beam and for emitting an output beam Two sides. According to another aspect, solid state light emitters 210 can be configured as shown in U.S. Provisional Application Serial No. 60/820,883. According to yet another aspect, the light engine 2〇2 can be configured as shown in U.S. Provisional Application Serial Nos. 60/820,887, 60/820,888, 60/821,032, 60/838,988. Projection subsystem 200 includes a refractive body 220. The refracting body 220 receives the light beam I23352.doc 200819900 204. The refractive body 220 provides a polarized beam 222. Refractor 220 includes an internal polarizing filter 224. One of the beams 204 is reflected by the internal polarizing filter 224 via the polarized component to form a polarized beam 222. According to one aspect, U.S. Patent Publication No. US 2007/0023941 to Dimcan et al., U.S. Patent Publication No. 2007/0024981 to Duncaii et al., U.S. Patent Publication No. 2007/0085973 A1 to Dimcan et al, and Dimcan et al. Refractors are formed or utilized in one or more aspects of U.S. Patent Publication No. US 2007/0030456. The refractive body 220 includes a first outer lens surface 226 and a second outer lens surface 228. According to one aspect, the outer lens surfaces 226, 228 have curved lens surfaces and have non-zero lens optical energy. According to another aspect, the outer lens surface 226 includes a convex lens surface adapted to maintain a small volume of the projection subsystem 200. According to another aspect, the outer lens surfaces 226, 228 are flat. According to one aspect, the refractive body 220 comprises plastic resin bodies 230, 232 on opposite sides of the internal polarizing filter 224. According to another aspect, the internal polarizing filter 224 comprises a multilayer optical film. According to another aspect, the refractive body 220 includes a multifunctional optical component that acts as a polarizing beam splitter and a lens. By combining the polarizing beam splitter and lens function in the multi-function refractor, loss that would otherwise occur at the air interface between the individual beam splitter and the lens can be avoided. Projection subsystem 200 includes an image forming device 236. Image forming device 236 receives image data on electrical input bus 238. Image forming device 236 receives polarized beam 222. Image forming device 236 selectively reflects polarized beam 222 based on the image data. The image forming apparatus 236 provides an image 240 of polarized light that is rotated relative to the polarization of the polarized beam 222 by I23352.doc • 12-200819900. Image forming device 236 provides image 24〇 to refractor 22〇. The image passes through an internal σ卩 polarizing filter 224. According to one aspect, the image forming apparatus 236 includes a 1 丨quid crystal on sincon (LCOS) device. Projection subsystem 200 includes a projection lens assembly 25A. Projection lens assembly 250 includes a plurality of lenses that are schematically indicated at 252, 254, 256, 258, 26A. Projection lens assembly 250 receives image 240 from refractor 220. The shirt lens assembly 250 provides an image projection beam 262 having a projected luminous flux suitable for viewing. According to one aspect, the projected luminous flux is not less than 3 lumens. According to another aspect, the ratio of projected luminous flux to electrical power level is at least 1 watt 3 · 8 lumens. According to another aspect, the ratio of projected luminous flux to electrical power level is at least 7 lumens per watt. According to another aspect, the ratio of projected luminous flux to electrical power level is at least 1 lumen per watt. According to another aspect, the light collection efficiency ratio is at least 38.5%. The light collection efficiency ratio is defined as the ratio of the polarized light flux impinging on the effective surface of the image forming apparatus 236 to the luminous flux emitted from the unpolarized solid state light emitter 210. According to another aspect, projection subsystem 200 has an electrical power level of no more than 36 watts. According to another aspect, projection subsystem 2 (10) has a volume of less than > 4 centimeters. According to another aspect, the projection subsystem 2 has a thickness of less than 14 mm. According to another aspect, projection subsystem 200 has a number of less than 2.4. According to another aspect, the projection subsystem has an ANSI contrast ratio of at least 30:!. According to another aspect, the projection subsystem has an Ansi contrast ratio of at least 5 〇:!. In another aspect, the projection subsystem has an on/off contrast ratio of at least 1 〇〇:1. 123352.doc 200819900 Figure 3A illustrates the projection subsystem 3〇〇. The projection subsystem 3 is similar to the projection subsystem 200 except that the synthetic optical device 3〇2 is included in the projection shadow system 300. The reference numerals used in Fig. 3A which are the same as the reference numerals used in Fig. 2 are not identical or similar features. In other aspects, projection subsystem 3 (10) is similar to projection subsystem 200. The synthetic optical device 3〇2 changes the aspect ratio of the beam 3〇4. The synthetic optical device 302 changes the beam shape to adapt the first aspect ratio in the light engine 2〇2 to a second different aspect ratio in the refractive body 220. According to one aspect, the first aspect ratio is 1: and the second aspect ratio is 〖6:9. According to another aspect, the first aspect ratio is 1:1 and the second aspect ratio is 4:3. The second aspect ratio is matched to the aspect ratio of the image forming apparatus 236 according to an aspect. According to an aspect, as illustrated in Fig. 3A, the synthetic optical device 3〇2 includes a synthetic lens. According to another aspect illustrated in Figure 3B, the composite surface 306 provided on the refractive body 320 acts as a synthetic optical device. In other aspects, the deflector 320 is similar to the refractor 220 of Figure 3A. According to another aspect, the polarizing filter can be positioned at position 33A or position 332 in Figure 3A. The polarizing filter at position 330 or position 332 enhances the optical contrast ratio of optical subsystem 300. According to one aspect, the polarizing filter positioned at positions 330, 332 comprises a multilayer optical film. 4 illustrates a perspective view of the projection subsystem 300 of FIG. Projection subsystem 3 (10) has a thickness 402. Projection subsystem 300 has a cross-sectional area of 4 〇〇, which is indicated by a flat surface perpendicular to thickness 402. The cross-sectional area 4 includes the area of the components 206, 208, 236, 220, 250, 302 and the intervening air space between the components carrying the available light. Projection subsystem 3 (10) has a volume that is a mathematical product of thickness 402 and cross-sectional area 4 。. 123352.doc -14· 200819900 Figures 5A, 5B illustrate portions of projection subsystems 5, 5 similar to projection subsystem 200 or 300. Projection subsystem 500 includes a filter 502. Filter 502 is adjacent to collimator 208. According to one aspect, the filter 502 includes an optical assembly separate from the collimator 208. According to another aspect, the filter 502 includes a filter layer on the collimator 208. According to one aspect, as illustrated in Figure 5A, the collimator 208 is interposed between the filter 5〇2 and the lens 206. According to another aspect illustrated in FIG. 5B, filter 504 is interposed between collimator 208 and lens 206. Filters 502, 504 include a blue blocking filter that also blocks ultraviolet (UV) radiation. The blue blocking filter blocks the blue and ultraviolet light wavelengths that degrade the refractive optical device while passing the portion of the blue spectrum that needs to be present in the projected image. Filter 502 or filter 504 blocks unwanted light from reaching refractor 220. 5C, 5D illustrate portions of projection subsystems 520, 540 that are similar to projection subsystem 200 or 300. Projection subsystem 520 includes a filter 522. Filter 522 is positioned between refractor 220 and projection lens assembly 250. The cast shadow system 540 includes a refractor 220A that includes a filter 542 adjacent the polarizing filter 224. The filter 542 is positioned between the polarizing filter 224 and the plastic resin body 230. The filters S22, 542 comprise a polarizing filter. Polarized filter benefits 522, 542 increase the contrast of the projected image. According to one aspect, the projection subsystem according to Figure 5D is described in Application No. 11/457,599, entitled "p〇laHzing Beam Splin(10)

Incorporate Reflective and Absorptive Polarizers and Image Display Systems Thereof's U.S. Patent Application. 6 illustrates a projection subsystem 600 that has a projection, such as a wing, except that the projection subsystem 6 (10) includes a plate 123352.doc -15-200819900 heat sink 602 and the projection sub-items of FIG. 4 or the raised fins 214 of the pins. The projection subsystem 300 in the film. In the stand-up, the system 600 is similar to the projection sub-fw projection subsystem of Figure 4. According to one aspect, the plate heat sink 602 has a bit of Qiu

Plate surface 604 is exposed to, for example, underarms. P. A Personal Digital Assistant (PDA), a Quantum Digital System (GPS) or similar port in the pocket of the device: at the outer package surface of the package. According to another private component Μ ^ ^ ^ ^ ~, the other components in the prototype heat sink 602 are in thermal contact to dissipate heat. Depending on the other distance between the four sides, the lower plate surface 6G4 can be placed in contact with the attached external heat sink for expansion. 〃, FIG. 7 illustrates the projection subsystem 7A. The projection subsystem 700 is similar to FIG. 3A except that the projection subsystem 7A includes a polarizing film disposed along the optical path between the collecting lens 206 and the refractive body 22A. The projection subsystem in the 3〇〇. According to an aspect, as illustrated in Fig. 7, a polarizing film 7〇2 is disposed between the collimator 2 (10) and the refractive body 220. The polarizing film 7〇2 reflects the polarized light toward the reflective surface of the solid-state light-emitting TiO 2 to provide light recycling. The polarizing film 702 is included to increase the luminous flux of the projection subsystem. According to one aspect, the polarization recycling is as described in U.S. Patent Application Serial No. 1 1/772,609, filed on July 2, 2007. Figure 8 illustrates a projection subsystem 800 similar to the projection subsystem of Figures 3A, 7. Projection subsystem 800 includes a housing 802 that surrounds at least a portion of optical components 206, 208, 702, 302, 220 and protects the surface of the optical component from contaminants and moisture. According to one aspect, the housing 802 can include an air filter 806. The air filter 806 confines the air flow, filters the contaminants and equalizes the pressure between the interior of the outer casing 809 and the surrounding atmosphere. The air filter 806 includes a dry heddle 808 that reduces the humidity within the outer casing 8〇2. According to another aspect, the housing 8〇2 serves the mechanical mounting of the optical assembly. The outer double 802 is coupled to the lens assembly guide tube 8〇4. The projection lens assembly 25 〇 can be (7) movably mounted in the guide tube 8〇4. The projection lens assembly 25A includes a coincident actuator 810 that is mechanically actuatable to move the position of the projection lens assembly 250 relative to the image forming device 236. The movement of the projection lens assembly 25 包含 includes a focus adjustment. According to one aspect, the projection lens assembly 25 〇 fits tightly into the guide tube 804 to provide a seal that prevents contaminants from entering the housing 8〇2. According to another aspect, one or more O-rings (not illustrated) are provided between the projection lens assembly and the guide 804 to provide a seal. According to yet another aspect, a telescoping bladder (not illustrated) is provided between one end of the projection lens assembly 25〇 and the guide tube 804 to provide a seal. Figure 9 illustrates a perspective view of a projection subsystem 900 similar to the projection subsystem shown in Figure 2. Projection subsystem 9A includes a solid state light emitter (not visible in Figure 9) that is connected by electrical leads 902, 904 to an electrical power source. The solid state light emitter is thermally coupled to the heat sink 906. Projection subsystem 900 includes a collection lens 908. The projection subsystem 900 includes an image forming apparatus 9 1 2, a refractor 914, and a projection lens 91 6 . Figure 10 illustrates a light emitting diode 1 充当 that acts as an exemplary solid state light emitter (such as solid state light emitter 210 in Figure 2). The light-emitting diodes 1 (10) are connected to electric power via bonding wires 1 002, 100 04. The light-emitting diode 1 〇 (10) includes light-emitting regions 1008, 1010, 1012, 1014, and 1016. Light-emitting diodes 1000 123352.doc 17 Other regions of 200819900 (such as regions 1018, 1020, 1022, 1024, 1026, 1028) contain dark regions that include electrical conductors and that do not produce light. The image of the light-emitting diode 1 is thus a pattern of a region where light is generated and a Q region where light is not generated. For use in projection, an image that is relatively uniform in brightness, such as illustrated in Figure 10B, is required. The uniform brightness is provided in accordance with the teachings of the U.S. Patent Publication No. 2007/0153397, the disclosure of which is incorporated herein by reference. Figure 11A illustrates an example of installing an optical component in a projection subsystem. The molding assembly 1100 includes an optical portion 11〇2 along the optical axis 1104 and a mounting flange portion 106 which is molded as a unitary structure with the optical portion. Optical portion 1102 includes a lens, however, any of the optical components of the projector can be used in place of the lens. The molded component is molded from a refractive material such as a transparent plastic resin. The mounting flange portion 1106 has a rim 11〇8, mo' rim that is shaped to mate with the flange of an adjacent molded component. The rims may be attached to each other by friction fit, snap fit, gluing, screwing or other known attachment methods for plastic resin molded components. Figure 11B illustrates an example of installing an optical component in a projection subsystem. The optical assembly 1120 is retained in the grooves 1122, 1124 of the mating mold half of the mounting tube 126. A plurality of optical components are mounted in the mounting tube. Mounting tube η26 is assembled along parting line 1128. Optical portion 112A includes a lens, however, any of the optical components of the projection subsystem can be similarly mounted in place of the lens. Figure 11C illustrates an example of installing an optical component in a projection subsystem. Light 123352.doc -18- 200819900 The learning component 1130 is locked in the groove 1132 of the mounting channel 1134. Miao 1136 is fastened to the mounting channel. A plurality of optical components are mounted in the mounting channel i 134. The mounting channel 1134 and the cover 36 are assembled along the parting line 1138. Optical portion 1130 includes a lens, however, any of the optical components of the projection subsystem can be similarly mounted in place of the lens. Figure 11D illustrates an example of a combination of a refractive body 115 (e.g., the refractive body 220 of Figure 2) molded with a mounting flange rim 1152, 1154, 1156 similar to the rim shown in Figure iiA. Figures 12A, 12B illustrate an alternate embodiment of a projection shadow system having portability capabilities as described above. Figure 12A illustrates a projection subsystem 12A2 that includes a light engine 1204, an image forming device 12〇6, and a projection lens assembly 1208. The image forming apparatus 2〇6 includes a transmissive image forming apparatus. Figure 12B illustrates a projection subsystem 1222 that includes a light engine 1224, an image forming device 1226, and a synthetic lens! 228 and a projection lens assembly 1230. Image forming device 1226 is a reflective image forming device (such as an array of deflectable mirror pixels) and does not require polarized light for its operation. EXAMPLES A projector similar to that of Figs. 7 and 9 having a refractor similar to Fig. 3B was constructed. The solid state light emitter is a white LED made of color-inspected InGaN grains, part number C45〇_EZ1〇(10)_S3(10)(10) plus an isoform yellow phosphor produced by Cree, Inc. (4600 SiheGn Drive, Durham, NC 27703). The light collecting lens and its coupling to the LED are described in U.S. Patent Publication No. 2007/0152231. The collimator is a Fresnel lens with one for receiving 123352.doc • 19- 200819900

The non-multifaceted side of the non-collimated beam and the multifaceted side for emitting the collimated beam. The embossing body is a molded plastic polarized beam splitter (PBS) as described in U.S. Patent Publication No. US 2007/0024981. Reflective polarizing films (one in PBS and one shown as element 702 in Figure 7) by 3M Company (St. Paul, MN 55 144) under the trade name "VIKUITI" advanced polarizing film (APF) ) and manufactured. The image forming equipment is an LCOS microdisplay with internal red, green and blue filters manufactured by Himax Display (2nd Floor, No. 26, Ziyu Road, Shugu Road, Xinshi Township, Tainan County, Taiwan), part number HX7007ATBFA. The measurement of size and performance is summarized in the following table, where IEC is an abbreviation of International Electrotechnical Commission.

Parameter unit minimum value typical value maximum measurement standard annotation resolution pixel 640x480 (VGA) IEC 61947-1 number of colors number 16.8 million IEC 61947-1 three primary colors in the case of 8 bits per primary color, (2 eight 8) 八3=16777216 aspect ratio 4:3 IEC 61947-1 projection distance range 0.210 1.820 IEC 61947-1 10"projection diagonal projection distance 0.395 projection ratio range ratio 0.600 0.700 10"image diagonal Line projection ratio 0.640 10" projection angle under the screen 28.5Hx21.6V 123352.doc -20- 200819900

Image size English 5.0 10.0 50.0 IEC 61947-1 Luminous flux at 1 W, 80 C Lumens 3.7 42 IEC 61947-1 For 1 W LED power, 9-point average. Temperature light output uniformity ratio measured at the LED heat sink -70% 40% IEC 61947-1 The brightest and darkest 13 point contrast ratio with respect to the 9-point average 30:1 50:1 IEC 61947 -1 Wide area (checkerboard) contrast (16 points) On/off contrast ratio 100:1 130:1 Full white, full black contrast, 9 point gamut ratio 40 NTSC percentage under CIE1931 correlated color temperature K 5100 5800 White chromaticity X 0.325 IEC 61947-1 CIE 1931 9-point average y 0.37 9-point average red chromaticity X 0.61 IEC 61947-1 CIE 1931 9-point average y 0.35 9-point average green chromaticity X 0.32 IEC 61947.1 CIE 1931 9 points Average y 0.58 9-point average blue chromaticity X 0.175 IEC 61947-1 CIE 1931 9-point average y 0.225 9-point average length mm 37.9 38,7 43.7 IEC 61947-1 For screen 50", 20" and 5"Image size, dimension width in the direction of the optical axis of the projection lens mm 31.1 IEC 61947-1 Maximum dimension thickness in the direction of the long axis of the imager mm 12.6 IEC 61947-1 Short axis of the imager Upward maximum size volume cc 11.8 12.0 12.9 Volume as defined in Figure 4 for 50", 20" and 5" image sizes on the screen I23352.doc -21 - 200819900 although the present invention has been described with reference to the preferred embodiment Those who will cut, 缉μ1, ",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Characterization of the portability of the subsystem 100 Figure 5 illustrates the projection subsystem. Figure 3 illustrates a projection subsystem including a synthetic optical device. Figure 3 illustrates a projection subsystem including a synthetic surface on a refractor. Figure 4 illustrates a perspective view of the projection subsystem of Figure 3. Figure 5A and Figure 5 illustrate portions of the projection subsystem including the blue block filter. "c Figure 5C, Figure 5D illustrates the inclusion of a polarizing filter (which changes the image) Part of the projection subsystem of contrast). Figure 6 illustrates a projection subsystem having a plate fin. Figure 7 illustrates a projection subsystem including light recycling. Figure 8 illustrates a projection subsystem including a housing. Figure 9 illustrates a perspective view of the projection subsystem. Figure 10 shows the light-emitting diode. Fig. 10B illustrates an image formed by light emitted from the light-emitting diode of Fig. 1A via an optical system. 11A, 11B, UC, and 11D illustrate an example of mounting an optical component in a projection subsystem. 12A, 12B illustrate an alternate embodiment of a projection subsystem. 123352.doc • 22 - 200819900

[Main component symbol description] 100 Figure 102 Vertical axis 104 Horizontal axis 108 Portability 110 Region 200 Projection subsystem 202 Light engine 2 04 Beam 206 Light collecting lens 208 Collimator 210 Solid-state light emitter 212 Electric power 214 Heat sink 220 Refractive body 220A Refractive body 222 Polarized beam 224 Internal polarizing filter 226 First outer lens surface 228 Second outer lens surface 230 Plastic resin material body 232 Plastic resin material body 236 Image forming apparatus 238 Electrical input busbar 123352.doc - 23- 200819900 240 250 252 254 256 258 260 262

300 302 304 306 320 330 332

402 500 502 504 510 520 522 540 Image Projection Lens Assembly Lens Lens Lens Lens Image Projection Beam Projection Subsystem Synthetic Optical Equipment Beam Synthesis Surface Refractor Position Position Cross-sectional Area Thickness Projection Subsystem Filter Filter Projection Subsystem Projector System filter projection subsystem 123352.doc -24- 200819900

542 Filter 600 Projection Subsystem 602 Plate Diffuser 604 Lower Plate Surface 700 Projection Subsystem 702 Polarizing Film 800 Projection Subsystem 802 Housing 804 Lens Assembly Guide Tube 806 Air Filter 808 Desiccant 810 Actuator Rod 900 Projection Subsystem 902 Electrical Conductor 904 Electrical Lead 906 Heat Sink 908 Light Collecting Lens 912 Image Forming Apparatus 914 Refractive Body 916 Projection Lens 1000 Light Emitting Dipole 1002 Bonding Wire 1004 Bonding Line 1008 Light Emitting Area 123352.doc -25- 200819900 1010 Illuminated Area 1012 Illuminated Area 1014 Light-emitting region 1016 Light-emitting region 1018 Region 1020 Region 1022 Region 1024 Region 1026 Region 1028 Region 1100 Molding assembly 1102 Optical portion 1104 Optical axis 1106 Mounting flange portion 1108 Flange 1110 Flange 1120 Optical assembly 1122 Groove 1124 Groove 1126 Mounting tube 1128 parting line 1130 optical component 1132 groove 1134 mounting channel 123352.doc -26- 200819900

1136 1138 1150 1152 1154 1156 1202 1204 1206 1208 1222 1224 1226 1228 1230 cover parting line refractor mounting flange rim mounting flange rim mounting flange rim projection subsystem light engine image forming equipment projection lens assembly projection System light engine image forming device synthetic lens projection lens assembly

I23352.doc -27-

Claims (1)

200819900 X. Patent application scope: 1 · A projection subsystem comprising: a light engine providing a light beam, the -Jigji | picking engine comprising - a collecting lens, an early straight meter and at least one solidifying north; + ~, dry light emitter, the at least one solid-state incoherent light emitter receives an electric power knife and can be coupled to a heat sink for a beam having a light flux level of the emitter; a shadow forming device that receives at least one component of the light beam, the image forming device provides an image; a projection lens assembly that receives the image and provides an image projection having a projected light flux level And the projection subsystem has a portability function comprising a ratio of a luminous flux of at least i watts of 3.8 lumens to an electrical power level, and a projection subsystem volume less than "cubic centimeters." a projection subsystem, and further comprising: a refractor comprising an internal polarizing filter that receives the beam and provides a component of the beam that is polarized to the image forming apparatus. 3. Projection 2 a subsystem, wherein the projection subsystem comprises a thickness of less than 14 mm. 4. The projection subsystem of claim 2, and further comprising at least one lens surface adjacent to the image forming apparatus, the at least one lens surface having A non-zero lens optical energy. The projection subsystem of claim 4, wherein the lens surface comprises a curved table of the refractive body 6. The projection subsystem of claim 2, wherein the portability utility comprises a portability limitation selected from the group consisting of: an electrical power of less than 36 watts, at least one per The ratio of the projected luminous flux level of Watt 7 lumens to the power level, and the ratio of the projected luminous flux level to the electrical power level of at least 1 lumen per watt. 7. The projection subsystem of claim 2 and further The diffusing film is included. 8. The projection subsystem of claim 2, wherein the refractive body comprises a plastic resin material body on the opposite side of the internal polarizing filter. 9. The projection of the item 2 A system wherein the internal polarizing filter comprises a multilayer optical film. The projection subsystem of claim 2, wherein the step-by-step includes a reflective polarizer disposed adjacent to the collimator. a projection subsystem comprising a synthetic optical surface, the synthetic optical surface adjusting an aspect ratio of the image projection beam. 12 - a projection subsystem comprising: a light engine for providing -, a beam, The light engine includes a collecting lens, a collimator and at least a solid-state incoherent light emitter, the at least one solid-state non-dry light emitter receiving an electrical power level and being coupled to a heat sink and providing a a light beam leveling device; a smear image forming device that receives image data and receives at least a component of the light beam, the image forming device provides an image; a projection lens assembly that receives the image and provides a The projected luminous flux is only accurate for the image projection beam; and the projection subsystem has a -capability function, wherein the electrical power level is 123352.doc 200819900 is less than 3 · 6 watts - a projection subsystem volume is less than 1 4 cubic centimeters and a projection The thickness of the sub-system is less than 14 mm. 13. The projection subsystem of claim 12, wherein the portability function comprises a ratio of the luminous flux level of at least 1 watt of 3.8 lumens to the electrical power level. 14. The projection subsystem of claim 12, Wherein the collecting lens comprises a hemispherical spherical lens. 15. The projection subsystem of claim 12, wherein the source of the light-emitting diode comprises at least one light-emitting body having a non-uniform region of souther light emission and lower light emission and the local focus fill region having lower light emission To increase the uniformity of lighting. 16. The projection subsystem of claim 12, further comprising a reflective polarized light recirculator disposed adjacent to the collimator. 17. The projection subsystem of claim 12, comprising a composite optical surface that receives the beam and shapes the beam to change an aspect ratio of the beam. 18. A method comprising: providing a light beam from a light engine, the light engine comprising a collection lens, a collimator, and at least one solid incoherent light emitter, the at least one solid state incoherent light emitter receiving An electric power level and coupled to a heat sink and providing a light beam having a light flux level of the emitter; receiving at least a component of the light beam at an image forming apparatus that receives the image data, and providing a image from the image forming An image of the device; receiving the image at the technical lens assembly and providing an image projection beam having a projection of 123352.doc 200819900 at least 1 watt of 3.8 lumens of light less than 14 cubic centimeters of projection light flux level; and providing a portability Sexual efficacy, which includes the ratio of a pass to the electrical power level, and a subsystem volume. 19. The method of claim 18, and further comprising: receiving the beam at a refractor comprising an internal polarizing filter, the refractor providing the image forming apparatus with a polarization of the beam 20. The method of claim 18, wherein the optical components are sized and configured such that the projection subsystem has a volume of no more than 14 cubic centimeters. 21. The method of claim 18, and providing reflective polarized light recycling to provide a light collection efficiency ratio of at least 38_5%. 22. The method of claim 18, and providing a synthetic optical surface adjacent to the refractive body, the synthetic optical surface shaping an aspect ratio of the image beam. 23. The method of claim 18, and providing a focus adjustment comprising one of a spacing between the projection lens assembly and the image forming device. 123352.doc