CN1886981A

CN1886981A - Optical apparatus for virtual interface projection and sensing

Info

Publication number: CN1886981A
Application number: CN 200480035419
Authority: CN
Inventors: 克洛尼·利伯曼; 尤瓦尔·沙龙; 亚钦·亚尔奇
Original assignee: VKB Inc
Current assignee: Lumio Home Services LLC
Priority date: 2003-10-31
Filing date: 2004-10-31
Publication date: 2006-12-27

Abstract

Optical and mechanical apparatus and methods for improved virtual interface projection and detection, by combining this function with still or video imaging functions. The apparatus comprises optics for imaging multiple imaged fields onto a single electronic imaging sensor. One of these imaged fields can be an infra red data entry sensing functionality, and the other can be any one or more of still picture imaging, video imaging or close-up photography. The apparatus is sufficiently compact to be installable within a cellular telephone or personal digital assistant. Opto-mechanical arrangements are provided for capturing these different fields of view from different directions. Methods and apparatus are provided for efficient projection of image templates using diffractive optical elements. Methods and apparatus are provided for using diffractive optical elements to provide efficient scanning methods, in one or two dimensions.

Description

The Optical devices that are used for virtual interface projection and induction

MULTIPLE-BLADE

The application and following U.S. Provisional Patent Application: application number: 60/515,647,60/532,581,60/575,702,60/591,606 and 60/598,486 is relevant, and require to enjoy its priority, and the open text of these applications is herewith incorporated by reference.

Invention field

The present invention relates to be used for optics and the mechanical device and the method for improved virtual interface projection and detection.

Background of invention

Following patent documentation, and the list of references of wherein quoting is considered to represent the state of the art:

PCT applies for PCT/IL01/00480, and international publication number is: WO2001/093182,

PCT applies for PCT/IL01/01082, and international publication number is: WO2002/054169, and

PCT applies for PCT/IL03/00538, and international publication number is: WO2004/003656,

Whole herein drawing of all these open texts is reference.

Summary of the invention

The application attempts to be provided for optics and the mechanical device and the method for improved virtual interface projection and detection.Thus according to a preferred embodiment of the present invention, Electrofax is provided, the electronic imaging transducer that comprises the output that the expression image field is provided, first imaging function that adopts the electronic imaging transducer to carry out the data input in first image field response user manual operation, adopt electronic imaging transducer at least one second imaging function at least one second photo of the second image field photographed scene, the optical module that first and at least the second imaging function is combined with the electronic imaging transducer, and the user is operable to the picture functional select switch, make the user can be in one of first and at least the second imaging function selection operation.Above-mentioned Electrofax also preferably includes the projection dummy keyboard, and the user can carry out manual operation thereon.

With first and at least the second imaging function and the optical module that the electronic imaging transducer combines, preferably include at least one optical element, it selectively places the upstream of transducer, only is used for this at least the second imaging function and uses.Interchangeable and preferred, this optical module do not comprise the upstream that selectively places transducer, be used for that first imaging function uses, and has the optical element of focal power (optical power).

According to a further advantageous embodiment of the invention, in above-mentioned Electrofax, first and second imaging functions are comprised beam splitter with the optical module that the electronic imaging transducer combines, it is the light path that the definition of first and second imaging functions separates.In above-mentioned arbitrary embodiment, by at least one optical gate suitably being set to block at least one imaging function, the user is operable to as functional select switch preferably can carry out selection operation in one of first and at least the second imaging function.And, the light path that the first and second imaging function preferred definitions separate, it can extend towards different directions, maybe can have different visual fields.

Still according to a further advantageous embodiment of the invention, in the above-mentioned embodiment that has used the beam splitter relevant with wavelength, separable visible spectrum of beam splitter and IR spectrum use for first and second imaging functions respectively.

And above-mentioned arbitrary Electrofax preferably also comprises LCD, and the output of expression image field shows thereon.In addition, the optical module that first imaging function is combined with the electronic imaging transducer preferably includes visual field expansion lens.

Still according to another embodiment of the invention, Electrofax further is provided, the electronic imaging transducer that comprises the output that the expression image field is provided, adopt first imaging function of electronic imaging transducer at the first image field photographed scene photo, adopt at least the second imaging function of electronic imaging transducer, the optical module that first and at least the second imaging function is combined with the electronic imaging transducer at least one second image field photographed scene photo; And the user be operable to the picture functional select switch, make the user in one of first and at least the second imaging function, carry out selection operation.

The optical module that first and at least the second imaging function is combined with the electronic imaging transducer preferably includes at least one optical element, and it selectively places the upstream of transducer, only is used at least the second imaging function and uses.Preferred and interchangeable, this optical module does not comprise the upstream that selectively places transducer, is used for the optical element that first imaging function uses, has focal power.

According to a further advantageous embodiment of the invention, in above-mentioned Electrofax, first and second imaging functions are comprised the beam splitter relevant with wavelength with the optical module of electronic imaging transducer combination, it is the light path that the definition of first and second imaging functions separates.In above-mentioned arbitrary embodiment, by at least one optical gate suitably being set to block at least one imaging function, the user is operable to as functional select switch preferably can carry out selection operation in one of first and at least the second imaging function.And, the light path that the first and second imaging function preferred definitions separate, it can extend towards different directions, maybe can have different visual fields.

More preferred embodiments according to the present invention, the above-mentioned optical module that first and at least the second imaging function is combined with the electronic imaging transducer is preferably fixing.In addition preferably, first and second image fields passed through primary event separately before being imaged on the electronic imaging transducer.Like this, the reflection of second image field is preferably undertaken by loading (stowable) mirror that rotates around pivot.Interchangeable and preferred, but the first image field direct imaging on the electronic imaging transducer, and second image field is before being imaged on the electronic imaging transducer, can be through two secondary reflections.Like this, preferably reflect the second time of being undertaken in two secondary reflections by the loading mirror that rotates around pivot.And, second image field can direct imaging on the electronic imaging transducer, and first image field can be through two secondary reflections before being imaged on the electronic imaging transducer.

According to another embodiment of the invention, above-mentioned Electrofax further is provided, wherein carry out on the bands of a spectrum of first imaging function in infrared spectral range, carry out on the bands of a spectrum of second imaging function in the visible region, this camera also comprises filter set, and each first and second imaging function is with a filter set.Like this, filter set preferably includes the filter set that is used for first imaging function, it comprises the filter of bands of a spectrum at least one visible light transmissive zone and the region of ultra-red, and at least one transmission region of ultra-red is to the part that is lower than bands of a spectrum in the region of ultra-red, and the filter in visible light transmissive zone not, and the filter set that is used for second imaging function, its comprise at least one visible light transmissive zone to the region of ultra-red bands of a spectrum with the filter of lower part.In the latter, first and second imaging functions are preferably along the common optical pathways guiding, and first and second filter set are used according to selected imaging function exchange.

The further preferred embodiment according to the present invention, above-mentioned Electrofax also is provided, wherein preferably, for first and at least the second imaging function and electronic imaging transducer are united, or be positioned at electronic imaging transducer before the optical module by rotation, or replacedly be positioned at electronic imaging transducer speculum before by rotation, and carry out the imaging function of user's operation and select, wherein optical module combines first and the second imaging function at least with the electronic imaging transducer.

The further preferred embodiment according to the present invention, above-mentioned Electrofax also is provided, it also comprises part transmission beam splitter, so that first and second image fields are merged, wherein two image fields all by part transmission beam splitter reflection once, one of image field is also after by the full-reflector reflection, from the transmission of part transmission beam splitter.Part transmission beam splitter also is preferably dichroic.In these two kinds of situations, full-reflector also is preferably has focal power.

According to a further advantageous embodiment of the invention, even further provide the portable phone that comprises telephony feature, the electronic imaging transducer of the output of expression image field is provided, first imaging function that adopts the electronic imaging transducer to carry out the data input in first image field response user manual operation, adopt at least the second imaging function of electronic imaging transducer at least one second photo of one second image field photographed scene, the optical module that first and at least the second imaging function is combined with the electronic imaging transducer, and the user be operable to the picture functional select switch, make the user in first and at least the second imaging function, carry out selection operation.

And, according to another preferred embodiment of the invention, the personal digital assistant that comprises at least one personal digital assistant functionality also is provided, the electronic imaging transducer of the output of expression image field is provided, first imaging function that adopts the electronic imaging transducer to carry out the data input in first image field response user manual operation, adopt at least the second imaging function of electronic imaging transducer at least one second photo of the second image field photographed scene, the optical module that first and at least the second imaging function is combined with the electronic imaging transducer, and the user be operable to the picture functional select switch, be used for making the user to carry out selection operation at first and at least the second imaging function.

According to another preferred embodiment of the invention, the remote control equipment that comprises distant control function is provided, the electronic imaging transducer of the output of expression image field is provided, first imaging function that adopts the electronic imaging transducer to carry out the data input in first image field response user manual operation, adopt at least the second imaging function of electronic imaging transducer at least the second photo of the second image field photographed scene, the optical module that first and at least the second function is combined with the electronic imaging transducer, and the user be operable to the picture functional select switch, be used for making the user to carry out selection operation at first and at least the second imaging function.

According to further preferred embodiment of the present invention, the Optical devices that produce image also are provided, this image comprises a plurality of parts that are positioned at the big angle of diffraction, described Optical devices comprise provides the diode laser of output beam light source, be used to collimate output beam and limit the collimater that collimated light beam is parallel to the collimater optical axis, be used for limiting the diffraction optical element of (define) image, come the collimated light beam of autocollimator to be mapped on this diffraction optical element, produce multiple diffraction beams, these diffracted beams limit (define) images and are guided in the certain angle scope with respect to the optical axis of collimater, and the condenser lens that is positioned at the diffraction optical element downstream, it focuses on many light beams on the point away from diffraction optical element.In such device, define the big angle of diffraction usually, when lacking the condenser lens that is positioned at the diffraction optical element downstream, image will have the distortion that can't make us accepting like this.Preferably, the angle of diffraction is defined as forming 30 degree at least with the collimater optical axis.

According to a preferred embodiment of the invention, even further provide the Optical devices that produce image, this image comprises a plurality of parts that are positioned at respect to the big angle of diffraction of axis, described Optical devices comprise provides the diode laser of output beam light source, receive output beam and the light beam compensating element of the output beam of correction is provided, be used to limit the collimater of collimated light beam, and the diffraction optical element that is used for limiting (define) image, come the collimated light beam of autocollimator to be mapped on this diffraction optical element, produce multiple diffraction beams, these diffracted beams limit (define) image and are guided in the certain angle scope with respect to axis.Usually define the big angle of diffraction, when lacking the condenser lens that is positioned at the diffraction optical element downstream, image will have the distortion that can't make us accepting like this.Preferably, the angle of diffraction is defined as forming at least 30 degree with the collimater optical axis.This section described any one Optical devices preferably also comprise the condenser lens that is positioned at the diffraction optical element downstream, and it focuses on many light beams on the point away from diffraction optical element.

And, according to another preferred embodiment of the invention, Optical devices are provided, it comprises provides the diode laser of output beam light source, and the aperiodicity diffraction optical element that limits image template, output beam is mapped on this aperiodicity diffraction optical element, produces multiple diffraction beams, and those diffracted beams limit image template.Preferably, image template can make data be input in the data input device.

The further preferred embodiment according to the present invention, the Optical devices of projected image also are provided, it comprises provides the diode laser of illuminating bundle light source, define the lenslet array of a plurality of concentrating elements, output beam of each concentrating element definition, and the diffraction optical element that comprises a plurality of diffraction optics sub-elements, the associating of one of each sub-element and multi beam output beam, be used to limit the part of image, and be mapped on each sub-element to produce multiple diffraction beams, qualification image so that multiple diffraction beams flocks together from one of output beam of one of concentrating element.Image preferably comprises template so that data are input to data input device.

According to another preferred embodiment of the invention, be provided for the Optical devices of projected image, it comprises provides the diode laser of multi beam illuminating bundle array of source, define the lenslet array of a plurality of concentrating elements, each concentrating element focuses on one of many illuminating bundles, and the diffraction optical element that comprises a plurality of diffraction optics sub-elements, the associating of one of each sub-element and multi beam output beam, be used to limit the part of image, and be mapped on each sub-element to produce multiple diffraction beams from one of output beam of one of concentrating element, make the multiple diffraction beams qualification image that flocks together.Image preferably comprises template so that data are input to data input device.In described any one Optical devices of this section, the diode laser array of source is preferably vertical cavity surface emitting laser (VCSEL) array.

And, in above-mentioned arbitrary Optical devices, the output window of diffraction optical element preferred definition Optical devices.

According to another preferred embodiment of the invention, further provide laser diode integrated encapsulation, comprise the laser diode chip of launching light beam, revise the light beam compensating element of light beam, focus on and revise beams focusing element and the diffraction optical element that produces image from light beam.Image preferably comprises template so that data are input to data input device.

Interchangeable and preferred, also provide laser diode integrated encapsulation, comprise the laser diode chip of launching light beam, and the aperiodicity diffraction optical element that produces image from light beam.In this embodiment, image also preferably comprises template so that data are input to data input device.

Another preferred embodiment according to the present invention, Optical devices are provided, comprise the input illuminating bundle, illumination beam aperiodicity diffraction optical element thereon, and translation mechanism, it changes the position that input beam shines on diffraction optical element, wherein preferred, diffraction optical element make incident beam with an angular deflection to the perspective plane, this angle changes according to the predefined function about incoming position.In this embodiment, the preferred translation DOE of translation mechanism.In the described arbitrary device of this section, incoming position can change with sinusoidal manner, and predefined function preferably provides linear scan.Like this, predefined function preferably provides the scanning that produces the image with uniform strength.

In described arbitrary embodiment, input beam or collimated light beam, or focused beam.In the later case, device also preferably comprises condenser lens, so that diffracted beam is focused on the perspective plane.

Preferably, in above-mentioned Optical devices, make light beam in two-dimensional directional deflection about the predefined function of incoming position.Like this, translation mechanism can be at one dimension direction or two-dimensional directional translation DOE.

Another preferred embodiment according to the present invention, coaxial two-dimension optical scanning means further is provided, comprise and make the diffraction optical element of light beam in two-dimensional directional deflection, the incoming position of light beam has functional relation on this deflection and the diffraction optical element, the light-duty supporting structure that diffraction optical element is mounted thereto, first framework in light-duty supporting structure outside, light-duty supporting structure is connected to first framework by first support member, thereby light-duty supporting structure can be vibrated with first frequency at first direction, second framework in first framework outside, first framework is connected to second framework by second support member, thereby second framework can vibrate with second frequency in second direction, and at least one driving mechanism, be used for exciting at least first frequency and second frequency vibration one of them.In this device, first frequency preferably is higher than second frequency, like this, scans and is raster type scans.

According to another preferred embodiment of the invention, Optical devices are provided, it comprises the diode laser light source of emissive lighting light beam, illuminating bundle is focused on lens on the projection surface, illumination beam aperiodicity diffraction optical element thereon, and the translation mechanism that changes input beam irradiation position on diffraction optical element, wherein preferred, diffraction optical element deflects on the perspective plane incident beam at a certain angle, and this angle changes according to the predefined function about incoming position.Except illuminating bundle being focused on first lens on the diffraction optical element, Optical devices also preferably comprise illuminating bundle with deflection and focus on second lens on the perspective plane.

The above-mentioned arbitrary Optical devices that relate to the scanning application preferably can project the data input template on the perspective plane, or replaceable and preferred, video image can be projected on the perspective plane.

Description of drawings

In conjunction with the accompanying drawings, will understand fully more comprehensively and understanding the present invention from following explanation.Wherein:

Fig. 1 is the simplified schematic diagram that is used for the interchangeable optical module of the combination camera that makes up and operate according to the preferred embodiment of the present invention and input equipment;

Fig. 2 is the simplified schematic diagram that is used for the optical module of the combination camera that makes up and operate according to another preferred embodiment of the present invention and input equipment;

Fig. 3 is used for the combination camera that makes up and operate according to the preferred embodiment of the present invention and input equipment, the broad sense schematic diagram of the multiple alternative executive mode of optical module among Fig. 2;

Fig. 4 A and 4B are respectively the schematic diagrames directly perceived of concrete executive mode of optical module that is used for Fig. 2 of the combination camera that makes up and operate according to the preferred embodiment of the present invention and input equipment;

Fig. 5 is used for the combination camera that makes up and operate according to the preferred embodiment of the present invention and input equipment, the schematic diagram of the concrete executive mode of the optical module among Fig. 2;

Fig. 6 is the schematic diagram of concrete executive mode of optical module that is used for Fig. 2 of the combination camera that makes up and operate according to the preferred embodiment of the present invention and input equipment;

Fig. 7 is used for the combination camera that makes up and operate according to the preferred embodiment of the present invention and input equipment, the schematic diagram of the concrete executive mode of the optical module among Fig. 2;

Fig. 8 is used for the combination camera that makes up and operate according to the preferred embodiment of the present invention and input equipment, the schematic diagram of the concrete executive mode of the optical module among Fig. 2;

Fig. 9 is used for the combination camera that makes up and operate according to the preferred embodiment of the present invention and input equipment, the schematic diagram of the concrete executive mode of the optical module among Fig. 2;

Figure 10 is the reflectivity curve and the transmission curve of existing dichroic filter that is used for the embodiment of Fig. 2-9B;

Figure 11 A, 11B and 11C are the schematic diagrams of embodiment and three kinds of different arrangements of mirrors among Fig. 3;

Figure 12 A, 12B, 12C, 12D, 12E, 12F and 12G are the schematic diagrames of the seven kinds of alternative executive modes of the embodiment among Fig. 3;

Figure 13 makes up and operation according to the preferred embodiment of the present invention, is used for the simplified schematic diagram of the Optical devices of projection template;

Figure 14 A and 14B are respectively the simplified schematic diagram that carries into execution a plan and the top views of the device of Figure 13 according to the preferred embodiment of the invention;

Figure 15 A and 15B make up and operation according to another preferred embodiment of the present invention respectively, are used for the simple and clear schematic top view and the schematic side view of the device of projection template;

Figure 16 still makes up and operates according to another preferred embodiment of the present invention, is used for the simple and clear schematic side view of the device of projection template;

Figure 17 still makes up and operates according to another preferred embodiment of the present invention, is used for the simple and clear schematic side view of the device of projection template;

Figure 18 has merged the simplified schematic diagram of the laser diode package of element shown in the partial graph 13A-15B at least;

Figure 19 makes up and the simplified schematic diagram of the diffractive optical device of operation according to the preferred embodiment of the present invention, and this diffraction optical element is at the device that is used for the projection template, be used for scanner uni other;

Figure 20 is that another preferred embodiment makes up and the simplified schematic diagram of the diffractive optical device of operation according to the present invention, and this diffraction optical element is at the device that is used for the projection template, be used for scanner uni other;

Figure 21 is the sketch that diffraction optical element is used for two-dimensional scan;

Figure 22 is the sketch of two-dimension translational of diffraction optical element that is used for the embodiment of Figure 21;

Figure 23 has adopted the device among Figure 22, makes up and the simplified schematic diagram of the diffractive optical device of operation according to the preferred embodiment of the present invention, and this diffractive optical device is at the device that is used for the projection template, be used for scanner uni other;

Figure 24 has adopted the device among Figure 22, and another preferred embodiment makes up and the simplified schematic diagram of the diffractive optical device of operation according to the present invention, and this diffractive optical device is at the device that is used for the projection template, be used for scanner uni other.

Detailed description of preferred embodiment

Fig. 1 is the simplified schematic diagram that is used for the interchangeable optical module of the combination camera that makes up and operate according to the preferred embodiment of the present invention and input equipment, describes referring now to Fig. 1.This type of camera and input equipment can be used to mobile phone, personal digital assistant, remote control or similar devices.In the embodiment in figure 1, dual-use function CMOS camera module 10 provides the common color imaging of medium visual field 12 and the virtual interface induction of big visual field 14.

As described in the PCT application that is WO 2004/003656 by the whole international publication number that draws for reference,, be used for to be provided with very high mechanical precision and reproducibility with the imaging len of virtual interface mode imaging for obtaining image calibration accurately.

In the embodiment in figure 1, in camera module 10, big view field imaging lens 16 are installed in CMOS camera 18 fronts.Therefore in system's manufacture process, virtual interface can accurately be calibrated to high level of accuracy.

When adopting CMOS module 10 in the virtual interface pattern, shown in Fig. 1 top, infra-red transmitting filter 20 is arranged on wide-angle lens 16 fronts.Therefore this filter need accurately not be provided with respect to module 10, can adopt simple mechanical positioning mechanism 22 to achieve the goal.

When CMOS camera module 10 is used to general colour imaging, shown in the dotted portion of Fig. 1 bottom, operation detent mechanism 22 makes and replaces infrared fileter 20 at camera module front use reducing glass 24 and infrared barrier filter 26.In this imaging pattern,,, thereby can adopt simple mechanical mechanism to realize positioning function equally so accurately the location is inessential for the side direction of a reducing glass 24 because the user can adjust camera usually with suitable designed image.

Though in preferred embodiment shown in Figure 1, according to the type of required image field, mechanical positioning configuration is depicted as single interchangeable optical unit 28, it is arranged on camera module 10 fronts selectively by single simple mechanical positioning mechanism 22.Be understandable that the present invention can use other mechanical positioning configurations equally, for example, by mechanism separately, every group of optical module that will be used for each visual field moves on to the position in module 10 the place aheads.

And, though in Fig. 1, a kind of general colour imaging state (position) only is shown, be appreciated that here dissimilar imaging functions can be provided, no matter be to be used for generic video, or inactive record, or in close-up photography, or in any other colour imaging was used, each in these functions needed the field image optics assembly of oneself usually.22 of detent mechanisms are adapted such that and can switch between the colour imaging pattern of virtual interface pattern and any installation.

Embodiment shown in Figure 1 needs mechanical displacement means, compares with static optical design, and mechanical displacement means makes complex structure also may become the root of unreliability.Referring now to Fig. 2 to 9B, the schematic diagram that it illustrates the improvement optical design that is used for the double-mode cmos image sensor, provide with reference to the essentially identical function of the described foregoing of Fig. 1, but it does not need moving-member.

Referring now to Fig. 2, CMOS camera 118 is arranged on dichronic mirror 122 back with related medium field-of-view lens 120, and dichronic mirror 122 is transmitted infrared light and reflect visible light on the angular range corresponding with the visual field of lens 120 at least.The infra-red transmitting filter 126 of field expansion lens 124 and obstruct visible light is provided with along the infrared transmission path.Be understandable that above-mentioned configuration provides the infrared virtual interface induction system with big visual field 130.

Visible light speculum 132 commonly used and infrared barrier filter 134 are provided with along the visible light path, therefore provide the colour imaging ability in middle visual field 140.

The embodiment of Fig. 2 has an advantage, and promptly two imaging paths are the opposite sides that separate and be positioned at equipment.When the double-mode optical module is used for mobile device, this is useful especially characteristics, mobile device is mobile phone and personal digital assistant for example, wherein in order to use the screen composing images, hope obtains picture at the rightabout that equipment is provided with screen one side, and, on the other hand, in order to make the data visualization that is transfused to, wishing is providing virtual input capability in the same side mutually with the screen of equipment.

Referring now to Fig. 3, Fig. 3 is the schematic diagram of the further preferred embodiment of the present invention, show the light path of double-mode optical module module, this double-mode optical module module has merged visual light imaging system and the big visual field with narrow visual field 300,302,304, this visual light imaging system is used to take pictures, this light path can select to be directed to the equipment back side 300, side 302 or front 304, and the front of infrared imaging path slave unit that is used for the dummy keyboard function is towards the place ahead.In order to simplify, in Fig. 3, only show half light path on 310 of big visual field.

As shown in Figure 3, CMOS camera 316 receives the light of process LP filter 318, a plurality of lens 320 and dichronic mirror 322.Infrared light passes through dichronic mirror 322 via big field-of-view lens 324 transmissions.Visible light from the narrow visual field at the equipment back side is reflexed on the dichronic mirror 322 by completely reflecting mirror 326, is reflected to from dichronic mirror 322 the camera focus assembly again; Visible light from the equipment front is reflexed to dichronic mirror 322 by completely reflecting mirror 328; Visible light from the equipment side is not reflected, and directly arrives dichronic mirror 322.At which narrow view field imaging, any in the preferred switched mirror 326,328 arrives the relevant position, or it does not switched according to hope.The details of different specific embodiments is shown in Fig. 4 A to 9 among Fig. 2 and 3.

Referring now to Fig. 4 A and 4B, it is respectively the schematic diagram directly perceived that is used for the concrete executive mode of the Fig. 2 of the combination camera that makes up according to a preferred embodiment of the invention and operate and data input device or 3 embodiment.Towards the camera of (vertical facing), and overturn by single speculum, therefore can obtain a kind of very compact scheme by each light path in conjunction with vertically for this concrete dual optical module executive mode.Infrared light from dummy keyboard is received, advance in its path along an optical gate 350 and expansion lens 352 definition, mirror 354 reflections are reflected, by dichroscope combiner (dichronic combiner) 356, traditional camera camera lens 358 and interferometric filter 360, arrive camera 362, for example CMOS camera.Visible light from scene is advanced along the path of

optical gate

370 and 372 definition of IR barrier filter, and by 356 reflections of dichroscope combiner, scioptics 358 and interferometric filter 360 are to camera 362.Be understandable that optical gate 370 and IR barrier filter 372 can be merged into individual equipment, as shown in the figure, or can be separate equipment.

Referring now to Fig. 5, it is the schematic diagram of another concrete executive mode of embodiment that is used for Fig. 2 of the combination camera that makes up according to a preferred embodiment of the invention and operate and input equipment, wherein adopt a plurality of and Fig. 4 A and 4B components identical, and it also is very compact embodiment.Visible light from scene is received, advance in its path along

optical gate

380 and 382 definition of IR barrier filter, mirror 384 reflections that are reflected are by dichroscope combiner 386, traditional camera camera lens 388 and interferometric filter 390, arriving camera 392, for example is the CMOS camera.Infrared light from dummy keyboard is advanced along the path of an optical gate 394 and expansion lens 396 definition, and by 386 reflections of dichroscope combiner, scioptics 388 and interferometric filter 390 are to camera 392.Be understandable that optical gate 380 and IR barrier filter 382 can be merged into individual equipment, as shown in the figure, or can be separate equipment.

Referring now to Fig. 6, it is the schematic diagram of concrete executive mode of embodiment that is used for Fig. 2 of the combination camera that makes up according to a preferred embodiment of the invention and operate and input equipment, and with reference to Fig. 7, it shows the variation of embodiment among Fig. 6.This embodiment is characterised in that level camera and the direct sensing equipment of light path outside towards (horizontal facing), and second light path is overturn and directed in opposite directions by two speculums.It is advantageous that camera assembly is installed to be other all components that are parallel to this equipment usually, and can be assembled on the identical printed circuit board (PCB) with the miscellaneous part of this equipment.

Turn to Fig. 6 particularly, in this embodiment, scene is by direct imaging, dummy keyboard is through two secondary reflections, visible light from scene is received as can be seen, advancing in its path along optical gate 400 and 402 definition of IR barrier filter, and arrives camera 410 by dichroscope combiner 404, traditional camera camera lens 406 and interferometric filter 408, for example is the CMOS camera.Infrared light from dummy keyboard is advanced along the path of an optical gate 414 and expansion lens 416 definition, mirror 418 reflections that are reflected, and via dichroscope combiner 404 reflection scioptics 406, interferometric filter 408 and cameras 410.Be understandable that optical gate 400 and IR barrier filter 402 can be merged into individual equipment, as shown in the figure, or can be separate equipment.

Turn to Fig. 7 particularly, in this embodiment, dummy keyboard is by direct imaging, scene is through two secondary reflections, and the visible light from scene is received as can be seen, advances in its path along optical gate 420 and 422 definition of IR barrier filter, mirror 424 reflections are reflected, and by 426 reflections of dichroscope combiner, scioptics 428, interferometric filter 430 and camera 432, for example CMOS camera.Infrared light from dummy keyboard is advanced along the path of optical gate 434 definition, enlarges lens 436, dichroscope combiner 426 by the field, lens 428, and interferometric filter 430 arrives camera 432, for example CMOS camera.Be understandable that optical gate 420 and IR barrier filter 422 can be merged into individual equipment, as shown in the figure, or can be separate equipment.

Referring now to Fig. 8, it is the schematic diagram that is used for the concrete executive mode of the Fig. 2 of the combination camera that makes up according to a preferred embodiment of the invention and operate and input equipment or 3 optical module, and with reference to Fig. 9, it is the schematic diagram of another concrete executive mode of the optical module of Fig. 2 or 3, and is similar with Fig. 8.Fig. 8 and 9 embodiment are characterised in that and have adopted level and vertical reference, and the speculum that can pivot, and it also can play the effect of optical gate, thereby only need single internal mirror to separate light path at device interior.

Turn to Fig. 8 particularly, visible light from scene is received as can be seen, speculum 450 reflections by pivoting arrive camera 460, for example CMOS camera along the light path of passing dichroscope combiner 454, traditional camera camera lens 456 and interferometric filter 458.The speculum 450 that can pivot also plays the effect of main optical gate, to intercept visual light imaging equipment.When the side direction scene by imaging, the speculum 450 that can pivot rotates to outside the light path, is illustrated by the vertical direction among Fig. 8.Infrared light from dummy keyboard is general along being advanced by the horizontal route of an optical gate 464 and expansion lens 466 definition, as shown in Figure 8, by 454 reflections of dichroscope combiner, scioptics 456, interferometric filter 458, and enter camera 460.

Particularly with reference to Fig. 9, visible light from scene is received as can be seen, and its speculum that can be pivoted 470 reflections are along the path by 474 reflections of dichroscope combiner, arrive camera 480, for example CMOS camera through traditional camera camera lens 476 and interferometric filter 478.The speculum 470 that can pivot also plays the effect of main optical gate, intercepts visual light imaging equipment.When the side direction scene by imaging, the speculum 470 that can pivot rotates to outside the light path, is illustrated by the vertical direction among Fig. 9 B.Advanced shown in Fig. 9 A and 9B by the horizontal route of an optical gate 484 and expansion lens 486 definition in the general edge of infrared light from dummy keyboard, and through dichroscope combiner 474, scioptics 476, interferometric filter 478 enter camera 480.

In the equipment of the embodiment of above Fig. 2-9, when VKB pattern during, have only the light of IR illumination wavelengths peripheral region by imaging, normally the 785nm zone is transmitted to camera.This preferably realizes by the combination of using IR conducting (cut-on) and IR edge filter.On the other hand, use other patterns of this equipment, for example be used for video conference, video or fast imaging, or close-up photography need only be that the light of visible region arrives camera usually.This means when the single camera module to be used to two kinds of patterns that spectral filter must switch entering or leave between the light path according to institute's lectotype.

Referring now to Figure 10 A, Figure 10 A is the transmission curve figure of filter that is used for the embodiment of Fig. 2-9.Figure 10 A has illustrated the feature of the conventional I R edge filter that intercepts nearly IR zone in track A.This type of IR edge filter may be implemented as absorption filter, or interferometric filter, and is preferred for visual light imaging pattern light path, to prevent VKB illumination and visual picture mutual interference mutually.In the embodiment of Fig. 2-9, when equipment is used to the VKB imaging pattern, can be with only replacing traditional edge filter by the filter in VKB illumination IR zone.This preferably can carry out by using two filters; A conducting filter, its transmissison characteristic is by among Figure 10 A shown in the track B, and a LP interferometric filter, and its transmissison characteristic is shown in the track C1 and C2 that are used for two kinds of different incidence angles among Figure 10 A.

Referring now to Figure 10 B,, it is the curve chart of available and preferred filter configuration that is used for the embodiment of Fig. 2-9, wherein single narrow logical interferometric filter, identify with D in the drawings, preferably has 770 to 820nm passband, its be designated E, passband be 400 to 700nm visible filter together, be used to VKB imaging passage.The IR barrier filter that is designated E is used to the visible light pattern and is disturbed by VKB IR illumination to prevent image, or is disturbed by background NIR illumination.

Referring now to Figure 11 A,, 11B and 11C, it is the rough schematic view of embodiment and three kinds of different arrangements of mirrors among Fig. 3.All embodiment shown in Figure 11 A-11C all relate to along different light paths different view field imagings use single cameras.All light paths are imaged on the focal plane of camera, but in any particular moment, only adopt a light path.Each light path is represented a kind of independently operator scheme, and it is transformed into state of activation by the user.Figure 11 A, the embodiment among 11B and the 11C do not comprise moving-member.

Turn to Figure 11 A, the light from the left side among Figure 11 A is reflexed to camera optical module 502 whole or in part by standard spectrum beam splitter or dichronic mirror 500 as can be seen, enters camera 503 then.The spectral component of each passage is depended in used particular mirror combination.When two passages all are visible channels, use standard beam splitter 500.When one of passage in infrared light, use dichroic partially reflecting mirror 500.Light from the right is reflected twice, and mirror 500 reflections 50% that are reflected are typically all reflected by top mirror 504 again, and this light is guided through speculum 500 again, towards camera optical module 502 and camera 503.This pattern makes that left light path is 50% transmission, and the right light path is 25% transmission.

Shown in Figure 11 B the configuration with Figure 11 category-A seemingly, yet in Figure 11 B, replaced top mirror with concave mirror 506, so that bigger visual field to be provided.

The embodiment of Figure 11 A and 11B can also carry out by using a pair of prism.

In the embodiment of Figure 11 C, top mirror 504 with respect to it in Figure 11 A orientation and be inclined upwardly, and do not use 500 pairs of speculums to reflect from the light on the right among the figure.This configuration has the essentially identical performance with the embodiment of Figure 11 A, but size is bigger.

Referring now to Figure 12 A, 12B, 12C, 12D, 12E, 12F and 12G, it is the seven kinds of alternative rough schematic views that carry into execution a plan of the embodiment among Fig. 3.

Table 1 has been illustrated the substantive characteristics of seven kinds of embodiment, and those features will be in following detailed description.

Table 1: the summary that in portable hand-held device, realizes four light fields
								Figure	Camera	Visual field, the VSSR-back side	Visual field, VC-front	The CUP-back side/side direction visual field	Visual field, VKB-front
	12A	HR	Special-purpose visual field, full visual field	HR part visual field WDWG switches to pattern	Outer/inner is grand	DS is complete, and the visual field switches to pattern		Figure	Camera	Visual field, the VSSR-back side	Visual field, VC-front	The CUP-back side/side direction visual field	Visual field, VKB-front
	12A	HR	Special-purpose visual field, full visual field	HR part visual field WDWG switches to pattern	Outer/inner is grand	DS is complete, and the visual field switches to pattern		12B	HR	Full visual field, VMS-VSSR position	VMS-VC position DS (WDWG)	The grand position of VMS-	Special-purpose visual field, the full visual field of DS
	12C	HR	Full visual field	DS part visual field switches to pattern	Outer/inner is grand	DS is complete, and the visual field switches to pattern		12B	HR	Full visual field, VMS-VSSR position	VMS-VC position DS (WDWG)	The grand position of VMS-	Special-purpose visual field, the full visual field of DS
	12C	HR	Full visual field	DS part visual field switches to pattern	Outer/inner is grand	DS is complete, and the visual field switches to pattern		12D	HR+ HR	Full visual field is the HR camera independently	WDWG part visual field switches to pattern	Outer/inner is grand	DS is complete, and the visual field switches to pattern
	12E	HR+ LR/HR	Full visual field is the HR camera independently	Full LR in WDWG part visual field or DS HR switch to pattern	The grand HR of outer/inner	The full visual field of LR or DS HR switches to pattern		12D	HR+ HR	Full visual field is the HR camera independently	WDWG part visual field switches to pattern	Outer/inner is grand	DS is complete, and the visual field switches to pattern
	12E	HR+ LR/HR	Full visual field is the HR camera independently		The grand HR of outer/inner	The full visual field of LR or DS HR switches to pattern		12F	HR+ LR	The full visual field HR in VMS-VSSR position	VMS-VC position DS (WDWG) HR	The grand position HR of VMS-	The LR special camera
	12G	HR	Full visual field, HS-VSSR position	HS-VC position DS (WDWG)	The grand position of HS-	HS-VKB position DS		12F	HR+ LR	The full visual field HR in VMS-VSSR position	VMS-VC position DS (WDWG) HR	The grand position HR of VMS-	The LR special camera
	12G	HR	Full visual field, HS-VSSR position	HS-VC position DS (WDWG)	The grand position of HS-	HS-VKB position DS	Attention: WDWG=windows, the DS=compression sampling, the HS=horizontal rotation, VSSR=video and snapshot record, the VC=video conference, CUP=close-up photography, the revolution of VMS=vertical reflector, the HR=high-resolution camera, the LR=low-resolution camera

Turn to Figure 12 A, it is to provide four visual fields and the embodiment that do not have any moving optical assembly in a camera.Shared as can be seen optical module is provided for four all visual fields, and comprise high-resolution color camera 550, be typically VGA or 1.3M pixel camera, it has input aperture interferometric filter 552, shown in Figure 10 A and 10B, this input aperture interferometric filter 552 preferably comprises the filter of a visible transmission filter and a transmission 780nm IR illumination light, the filter or the visible transmission filter of transmission 780nm IR illumination light all are specific bandpass filters, or low pass filter, shared optical module also comprises the lens 554 with general 20 ° narrow visual field.Optical arrangement to these four visual fields describes now.

Preferably, by selectable field lens 560, so that the visual field is enlarged about 1.5 times, and beam combiner (combiner) 562 is taken VSSR visual field 556.VSSR visual field employing fixedly IR is passed through with the light of permission/prevention from the VSSR visual field by window 564, and wherein fixedly IR is covered by lighttight slip optical gate 566 by window 564.Preferably, the optical module that is used for this visual field has low distortion (＜2.5%) and supports the resolution of camera 550, preferably for the VGA camera, modulation transfer function MTF is approximately 50% when 50cy/mm, is approximately 60% for the 1.3M camera when the 70cy/mm.

Preferably, VKB visual field 576 and VC visual field 586 obtain by wide-angle field lens 590, rely on geometry, and the wide-angle field lens can be extended to the visual field of shared optical module 4.5 times.The core of the visual field of lens 590, for example the VC visual field preferably is designed to partly obtain image at the visible light of spectrum, and has the distortion factor less than 4%, and resolution is approximately 60% when 70cy/mm.The remainder of the visual field of lens 590, for example the VKB visual field has the higher distortion factor up to 25%, and lower resolution, typically for 785nm when the 20cy/mm less than 20%.

In lens 590 fronts, triple positions slide block or rotation optical gate 594 with three working regions preferably are provided, three working regions are light tight regional 596, are used to provide the IR cut-off region 598 of true color video and the induction IR conducting filter regions 600 from the IR of dummy keyboard.To the VC visual field in zone 600 suitable location optical gates 594, make the IR source that is fit to when adopting, for example during IR LED, can realize low resolution IR imaging.

Light from field lens 590 reflects downwards by plane reflection element 580, towards camera optical module 554 and camera 550.In the embodiment of the simplest triple visual fields, this plane reflection element 580 is a completely reflecting mirror.When using additional optional the 4th visual field, as described below, this plane reflection element 580 is dichroic beam combiners.

When plane reflection element 580 is dichronic mirror or beam combiner, a selectable additional visual field 582 can be provided, because combiner 562 and 580 all is the plane window, they will make the distortion minimization of picture quality.582 fronts in the visual field are conduction and cut-off optical gates.The speculum 584 that can pivot makes and should add the visual field on camera, shown in Figure 12 A, or by suitably aiming at, makes this visual field in the camera side.Interchangeable, iff being that the visual field, top is used, it can be the slip optical gate.

By 556 employing variable field lens can provide CUP the visual field in inside in the VSSR visual field, by in VSSR visual field 556 or selectable field of view 582 fronts adopt additional micro-lens externally to provide CUP the visual field, as among Nokia 3650 and the Nokia 3660.In the later case, top speculum 580 should be the dichroscope combiner of the light of visible light transmissive and high reflection 785nm.This selectable field of view also has before the window by/conducting optical gate (sliding or upset), also not shown in Figure 12 A at IR.

Referring now to Figure 12 B,, it is for providing the embodiment of four visual fields in a camera, but different with embodiment among Figure 12 A, it adopts the head (seiveledmirror head) of rotating mirror.Shared as can be seen optical module is provided for four visual fields, and comprise high-resolution color camera 650, be typically VGA or 1.3M pixel camera, it has the input aperture filter, be preferably interferometric filter 652, shown in Figure 10 A and 10B, this incident interferometric filter 652 preferably comprises the filter of visible transmission filter and transmission 780nm IR illumination light, or as specific bandpass filter, or as low pass filter, shared optical module also comprises the lens 654 with general 20 ° narrow visual field.

Top swiveling head 660 comprises the inclined mirror 662 that is installed on the rotating basis 664, illustrates by the circular arrow principle on the swiveling head among Figure 12 B.Speculum 662 can be installed with the pre-determined tilt position, or replacedly installs in the mode that can pivot.Light by swiveling head 660 is ended, for example, when adopting fixing inclined mirror, it can be realized by swiveling head being forwarded to the blind area that does not have light to enter, interchangeable, when employing can pivot the inclined mirror of installation, it can be realized by forwarding speculum to do not have light to enter position around pivot.

Though swiveling head can rotate 664 and obtain the image of any direction, can recognize that it is more useful to image space (imaging station) that definition separates.Mobile between each position needs the rotation of image on screen.The image that is obtained is a mirror image, and if necessary, it can carry out Electronic Calibration.Input aperture 640 has been shown in swiveling head, and it points to the outside of plan.

IR edge filter 670 be set at swiveling head 660 under, make it possible to obtain the true color photo.Light from swiveling head 660 arrives CMOS camera 650 via dichroscope combiner 672.Additional optical components in the face of each position of swiveling head (not shown among Figure 12 B) can be provided, make the suitably imaging of given visual field.

Preferred optics to four visual fields is configured into the row explanation now.

The VKB pattern---the field lens 680 that is used for the VKB pattern relies on geometry, obtains the image up to about 90 ° big visual field 694.The plastic window 682 of IR conducting filter is set at the front of field lens.By dichronic mirror 672, with the IR photoconduction that is acquired to shared optical module.Preferably, the IR image that obtains on CMOS is preferably low-quality, and its barrel distortion is up to 25%, and MTF is approximately 20% for 785nm when the 20cy/mm.For starting the VKB pattern, opaque optical gate 684 must be opened, and the top swiveling head forwards rest position to.

Be used for the top swiveling head 660 of VSSR imaging by startup, and forward it to VSSR position, obtain the VSSR pattern, thereby by the visual field being enlarged about 1.5 times VSSR field lens 696, VSSR visual field 688 is by imaging at the hand-held device back side.

By starting top swiveling head 660 and it being forwarded in the VC position of the front side of hand-held device, realize the VC pattern, wherein be provided with LCD in above-mentioned position, make to utilize and can select 690 pairs of VC visual field 692 imagings of optical element.Use this selection, only utilized the part of COMS imaging plane, this window known to promptly being is selected.When optical element 690 does not exist, the original FOV of lens 654 obtains image at whole camera induction region, but is compressed sampling providing the VC image of low resolution, and this compression sampling known to promptly being is selected.

One of the mode of embodiment by the above-mentioned Figure 12 of relating to A can realize the CUP pattern.

Referring now to Figure 12 C, it is the embodiment that four visual fields are provided in a camera, has mobile embedded (inline) optical module that is used for the VC visual field.Shared as can be seen optical module is provided for whole four visual fields, and comprise high-resolution color camera 700, be typically VGA or 1.3M pixel camera, it has input aperture interferometric filter 702, shown in Figure 10 A and 10B, this input aperture interferometric filter 702 preferably comprises the filter of visible transmission filter and transmission 780nm IR illumination light, or as specific bandpass filter, or as low pass filter, shared optical module also comprises the lens 704 with general 20 ° narrow visual field.Preferred optics to these four visual fields is configured into the row explanation now.

VSSR visual field 708 obtains by the visual field being enlarged about 1.5 times complementary field lens 710 and dichroscope combiner 712.Preferably, the VSSR visual field has, and fixing/slip IR ends window 714, and light tight slip optical gate 716, is used for conduction and cut-off imaging path.The optical module that is used for the VSSR visual field should have＜2.5% low distortion and support the resolution of camera, for the VGA camera, the MTF that should provide is approximately at least 50% when 50cy/mm, and for the 1.3M camera, is approximately at least 60% when 70cy/mm.

VKB visual field 720 obtains by wide-angle field lens 722, rely on selected geometry, the wide-angle field lens preferably is extended to 4.5 times with the visual field of shared optical module, and VKB visual field 720 is directed to shared optical module by speculum 724 and via dichroscope combiner 712.The visual field quality of VKB pattern is lower, and it has the distortion factor up to 25%, and low resolution, typically for 785nm when the 20cy/mm less than 20%.When the VKB pattern is activated, model selection slide block 726 is set to IR conducting filter position 728, and this optimum seeking site is suitable black plastic window.

Utilization still not at the add-on assemble shown in Figure 12 C, can provide additional selectable field of view 730 shown in the embodiment of Figure 12 A.

Select slide block 726 in wide-angle field lens 722 fronts when being set to a triplex mode that dwindles element 734, position as shown in Figure 12 C just obtains VC visual field mode 7 32.This configuration is reduced to about 30 ° with the visual field, and on the whole effective coverage with the CMOS of image focusing in camera 700.And the configuration of this selection is by in conjunction with the IR edge filter that dwindles in the element 734 on the scene, with near the light filtering the IR.Owing to only need CIF resolution for the VC pattern, camera is switched to the compression sampling pattern under this resolution, and for visible-range, needed optical resolution is approximately 60% when 35cy/mm, and distortion preferably is lower than 4%.Though relating to, the configuration of this selection uses moving optical assembly 734, but because image resolution ratio does not need very good, promptly meet the demands so be built with 0.05mm machinery repeatability (mechanical repeatability), and should repeatability not need the high-accuracy mechanical constructing technology to obtain easily.

One of the method for embodiment by the above-mentioned Figure 12 of relating to A can realize the CUP pattern.

Referring now to Figure 12 D,, it is to use two cameras that the embodiment of four visual fields is provided, but without any need for moving optical assembly.Preferred optics to these four visual fields is configured into the row explanation now.

Utilize condenser lens 742 and traditional camera 744 can obtain VSSR visual field 740 with VGA or 1.3M pixel resolution.Preferably, identical camera also can be used for the CUP mode imaging, or utilizes additional microspur module externally to realize, as Nokia3650/Nokia 3660, or utilize module to realize in inside, this module is FDK and the FMZ10 of Macnica or the LZ0P3726 module of Sharp for example.

VC visual field 750 and VKB visual field 752 pattern optimum selections use high-resolution camera 754, the camera of VGA or 1.3M pixel resolution for example, and it has the big visual field optical module 756 of visual field up to 90 °, and this depends on the geometry of used VKB.Filter preferably is arranged on the front of camera 754, this filter is preferably interferometric filter 764, shown in Figure 10 A and 10B, preferably comprises the filter of visible transmission filter and transmission 780nm IR illumination light, or as specific bandpass filter, or as low pass filter.Model selection slide block 758 in this embodiment preferably only uses two positions, and one is used for the VKB pattern, and one is used for the VC pattern.In the VKB pattern, slide block places lens 756 fronts with IR conducting window filter 760.In the VC pattern, slide block places lens 756 fronts with IR by window filter 762.

In the VC pattern, camera wherein only uses the center of visual field with the pattern work of windowing.This pattern is used 30 ° of visual fields.This visual field preferably has and is lower than 4% the distortion factor, and MTF is at least about 60% when 70cy/mm in visible-range.

In the VKB pattern, big visual field that need be up to 90 °, but can tolerate the higher distortion factor up to 25%, and resolution can be lower is typically for 785nm and is lower than 20% when the 20cy/mm.In this pattern, camera is preferably with the pattern work of vertically windowing, also preferably with horizontal compression sampling pattern work.

Referring now to Figure 12 E, it is to utilize two cameras that the embodiment of four visual fields is provided, but has been to use the mobile embedded optical module that is used for the VC visual field.Preferred optics to these four visual fields is configured into the row explanation now.

Utilize condenser lens 772 and traditional camera 744 can obtain VSSR visual field 770 with VGA resolution or 1.3M pixel resolution.Preferably, identical camera also can be used for the CUP mode imaging, no matter be externally to utilize additional microspur module, as Nokia3650/Nokia 3660, still in the inner utilization module of the LZ0P3726 module of the FMZ10 of FDK and Macnica or Sharp for example.One of the method for embodiment by the above-mentioned Figure 12 of relating to A can realize the CUP pattern.

VC visual field 776 patterns and VKB visual field 778 patterns are all preferably used low-resolution camera 780, or are in the high-resolution camera of compression sampling pattern.Filter preferably is arranged on the front of camera 780, this filter is preferably interferometric filter 784, shown in Figure 10 A and 10B, preferably comprises the filter of a visible transmission filter and transmission 780nm IR illumination light, or as specific bandpass filter, or as low pass filter.Big visual field optical element 782 is arranged in the camera front, and the geometry that it relies on used VKB has the visual field up to 90 °, and this optical element is common to this two kinds of patterns.By comprise IR conducting window filter 788 and embedded IR edge filter 780 the field reducing glass model selection slide block 786, between these patterns, select.

In the VC pattern, 786 pairs of model selection slide blocks have the reducing glass location, field of IR edge filter, and a reducing glass makes the available field of view of camera narrow down to about 30 °.This visual field preferably has and is lower than 4% the distortion factor, and MTF is lower than about 60% when 30cy/mm in visible-range.

In the VKB pattern, model selection slide block 786 places IR conducting optical filtering gate 788 before the field lens 782.For this visual field, the high distortion factor up to 25%, and have low MTF, and being lower than 20% for 785nm MTF at 20cy/mm, this is just enough.

Referring now to Figure 12 F,, it is to use fixing low-resolution camera, and in conjunction with to the high-resolution camera of flip mirror similar shown in Figure 12 B, the embodiment of four visual fields is provided.Preferred optics to these four visual fields is configured into the row explanation now.

Preferably, 790 pattern-dependent used geometry in VKB visual field is imaged on the low-resolution camera (CIF) 792 with visual field big field-of-view lens 794 up to 90 °.Filter preferably is arranged on the front of camera 792, this filter is preferably interferometric filter 816, shown in Figure 10 A and 10B, preferably comprises the filter of visible transmission filter and transmission 780nm IR illumination light, or as specific bandpass filter, or as low pass filter.Fixing IR conducting optical filtering window 796 is arranged in lens 794 fronts.This big view field imaging systematic distortion degree can be up to about 25%, and low MTF, typically is lower than when the 20cy/mm 20% just enough for 785nm.

Top swiveling head 800 comprises the inclined mirror 802 that is installed on the rotating basis 804, and Figure 12 B illustrates by the circular arrow principle on the swiveling head.Speculum 802 can be installed with the pre-determined tilt position, or replacedly installs in the mode that can pivot.Light by swiveling head 800 is ended, and for example, when adopting fixing inclined mirror, it can be realized by swiveling head being forwarded to the blind area that does not have light to enter.Interchangeable, when employing can pivot the inclined mirror of installation, it can be realized by forwarding speculum to do not have light to enter position around pivot.

Though swiveling head can rotate 804, and obtain the image of any direction, can recognize that it is more useful to the image space that definition separates.Mobile between each position needs the rotation of image on screen.The image that is obtained is a mirror image, and if necessary, it can carry out Electronic Calibration.IR edge filter 806 be set at swiveling head 800 under, make it possible to obtain the true color photo.

Light from swiveling head 800 is 30 ° magnitude or littler condenser lens 808 by the visual field, arrives CMOS camera 810.Can everybody install additional optical components (not shown among Figure 12 F) in the face of swiveling head, make the suitably imaging of given visual field.

Be used for the top swiveling head 800 of VSSR imaging and rotate back to rotary head 800 by startup, can obtain the VSSR pattern, thereby VSSR visual field 812 is by imaging to the VSSR position that is positioned at the hand-held device back.

Be used for the top swiveling head 800 of VC imaging by startup, and rotate back to rotary head 800, wherein be provided with LCD, just can obtain the VC pattern at this place to the VC position that is positioned at the hand-held device front, thus 814 imagings of VC visual field.Select this pattern, only use portion C MOS imaging plane, the selection of windowing known to Here it is.Otherwise image is compressed sampling, and to provide the VC image of low resolution, the compression sampling known to Here it is is selected.

Referring now to Figure 12 G, it is the embodiment that the camera of utilization in the horizontal change with docking location (docking) provides four visual fields.In this embodiment, camera 820, with its focusing optical assembly 822 and filter 824, its function will be described following, and camera 820 is around trunnion axis 826 rotations, and this trunnion axis is adjusted to the direction of pointing to Figure 12 G picture outside.By camera being arranged on several fixed positions, can obtain four visual fields.In each position, additional optical components selectively is set, to start the function of plan in this position.Describe the rotatable camera in the cellular phone is existing in the prior art.

Shared optical module generally includes high resolution CMOS camera 820, or be VGA, or is the 1.3M pixel, and the lens 822 of 20 ° of-30 ° of visual fields.Filter, Figure 12 G is not shown, but similar with the embodiment that is used for Figure 10 A and 10B, the filter that preferably comprises visible transmission filter and transmission 780nm IR illumination light, or specific bandpass filter, or low pass filter, this filter preferably is arranged on the front of camera 840, or as the part of camera entrance window.Preferred optics to these four visual fields is configured into the row explanation now.

In the VSSR pattern, camera is configured in the front of the IR light cutoff filter window 824 that is positioned at the hand-held device rear side, and 828 in the face of the input aperture from the VSSR visual field.The optical module that is used for this visual field has low distortion, preferably＜2.5%, and for the VGA camera, support that MTF is～50% camera resolution when 50cy/mm, for the 1.3M camera, support that MTF is～60% camera resolution when 70cy/mm.

In the VC pattern, now at the camera shown in the position 830, be set at IR light cutoff filter window 832 fronts of the front side that is positioned at hand-held device, 834 in the face of the input aperture from the VC visual field.Look like to be compressed sampling at this location drawing.For visible light, optical resolution preferably is higher than about 60% at 35cy/mm, and distortion is less than 4%.

In the CUP pattern,, be directed upwards towards micro-lens assembly 842 with IR edge filter 844 at the camera shown in the position 840.The optical module that is used for this visual field has low distortion, preferably＜2.5%, and for the VGA camera, support that MTF is at least 50% camera resolution when 50cy/mm, for the 1.3M camera, support that MTF is at least 60% camera resolution when 70cy/mm.

At last, in the VKB pattern,, be set to the position of downward sensing keyboard projection at the camera shown in the position 846.In this position, the optical module of lens front preferably includes and enlarges lens 848 and IR conducting optical filtering window 850.In this pattern, camera typically with window, the work of compression sampling pattern.Visual field 852 broads of whole optical modules, typically up to 90 °, this depends on used geometry.The distortion of higher level can be tolerated in this big visual field, typically up to 25%, and only needs low MTF, is 20% for 785nm when the 20cy/mm typically.

Referring now to Figure 13, it is to make up according to a preferred embodiment of the invention and operate, and is used for the rough schematic view of the Optical devices of projection template.Figure 13 is illustrated in the virtual interface application, carries out projection with 1000 pairs of image templates of diffraction optical element (DOE).In this embodiment of the present invention, by will be from the light beam guiding of the light source 1002 of for example laser diode by collimating lens 1004, make light beam in the conjugate distance of infinity from focusing, thereby all light are parallel to collimation axis 1010, and project on the DOE1000 with identical angle, can eliminate in prior art arrangement, when providing DOE the astigmatism that when illumination occurs by irradiation focused beam on DOE.Adopt small-power condenser lens 1006 that diffraction pattern is focused on image field, as far as possible in the optimum that is used to focus on, i.e. somewhere, image field center is as described in below in conjunction with Figure 14 A and 14B.

The diffracted ray track that calculates has been shown among Figure 13, from insertion portion 1008 as can be seen, compare, in this configuration with the DOE imaging system that uncollimated rays incides on the DOE, reducing of astigmatism, and make therefrom and can obtain obvious improvement on the focal spot size.This improved result can provide brighter diffraction pattern, obtains higher and the image that projection power is lower of contrast thus.Can design condenser lens 1006, make its surface curvature radius concentrate on the emitting area of DOE, to minimize additional geometrical aberration.These lens also can be designed to aspheric surface and obtain variable focal length with the different diffraction angle corresponding to corresponding projected image zones of different.

Referring now to Figure 14 A and 14B.Figure 14 A is the rough schematic view that carries into execution a plan of Figure 13 device according to a preferred embodiment of the invention, and the schematic diagram of Figure 14 B image that to be the device by Figure 14 A produce at imaging plane.Reduce one of the factor of the quality of such projected image and discussing with reference to Figure 13 before, it is that to come from the depth of field of collimation and/or condenser lens or set of lenses limited, adds the oblique projection angle, and it makes that being difficult to obtain high-quality at whole image field focuses on.

Consider from geometric optics, as can be known be that the depth of field and the used focal power of focal spot changes on the contrary.Therefore, obvious is, for the focal power of given DOE, the illumination hot spot is big more on DOE, and the depth of field is more little.Therefore, at the depth of focus of keeping as the plane, it is favourable using the enough short collimating lens of focal length, thereby the DOE of minimum area is illuminated, and enough areas is thrown light on, corresponding to obtain gratifying diffraction image.

Typical laser diode light source, used as DOE imaging system of the prior art, produce astigmatic bundle usually, shown in the insertion portion among Figure 14 A with elliptical shape 1020.This causes the hot spot of DOE illumination is prolonged along the slow axis 1022 corresponding axles with laser diode, and corresponding the reducing of the projected image depth of field after the DOE.On the contrary, according to a preferred embodiment of the invention, light beam compensating element 1010 is inserted between laser diode 1012 and the collimation/concentrating element 1014, to generate round substantially emission light beam 1024, shown in second insertion portion of Figure 14 A, and this light beam is directed along optical axis 1042.Therefore can select to collimate/concentrating element 1014 is with the enough area illumination of minimal overall spot size to DOE, and acquisition is for the depth of field of the maximum possible of given DOE focal power.Can be placed on place with hanging down the magnification ratio condenser lens, shown in the embodiment of Figure 13, in optical design, to provide more flexibility to focusing on diffraction pattern at image field away from DOE.

Figure 14 B illustrates and utilizes preferred optical projection system shown in Figure 14 A, by the image that obtains on the picture plane 1018.Figure 14 B should watch in conjunction with Figure 14 A.Designing optimal focus 1036 is to minimize defocusing and geometry deformation and geometrical aberration of entire image.Preferably, provide beam blocking device 1044 undesired mirage of obstruct or generation speck from zero level or other orders of diffraction.And, do not need the projected light beam restriction of 1046 pairs of expectations of window to define.

Referring now to Figure 15 A and 15B, it is respectively simplification top view diagrammatic sketch and side-looking diagrammatic sketch according to the device that is used for the projection template of another preferred embodiment of the present invention structure and operation.From Figure 15 A and 15B as can be seen, this embodiment and prior art difference are to have used aperiodicity DOE 1050, and it need accurately be located before LASER Light Source 1052 usually, and does not need the collimated illumination light beam.The incident portion of every bundle illuminating bundle generates the independent sector of image template 1056.

An advantage of this configuration do not need to be condenser lens, has reduced manufacturing cost potentially.Another advantage is the bright zero level hot spot that does not have from non-diffracted light, and has size to depend on the zero level zone 1054 of the diffusion of laser beam divergence.Safety hazard does not appear in this zero level speck.And, because its low-intensity and diffusion, so, just do not need the embodiment of image pattern 14A and 14B required if it can not have a negative impact to the contrast of tangible image, it is intercepted from master image 105 separation and to it, therefore reduced required minimum window size.

Referring now to Figure 16, it remains the simplification schematic side view of the device that is used for the projection template that makes up according to another preferred embodiment of the invention and operate.The cross section of the schematically illustrated improved DOE geometry of Figure 16.Preferably, with 1060 pairs of DOE1072 illuminations of laser diode.Yet unlike existing illumination scheme, DOE 1072 is divided like this, makes different piece 1070 be used to the zones of different 1076 of projection virtual interface template.Therefore, various piece 1070 conducts of DOE 1072 are DOE independently, is designed to comprise the information still less than whole DOE1072, and has much smaller angular aperture θ.This has reduced the cycle of DOE 1072, has therefore increased minimum feature size, has simplified manufacturing process greatly.The added benefit of this design is that the mirage of zero level and each section is minimized to the degree that does not need as separating in the prior art and sheltering.Therefore DOE can be as actual device window, to make compacter equipment.

Preferably, all independent parts 1070 are calculated together and control (master) in single passages, make them accurately to be aimed at.Form for example beam splitting structure of lenslet array 1074 by substrate back, can provide separately illuminating bundle each DOE part 1070 at DOE 1072.Can also adopt interchangeable beam splitting and focusing technology.

Can adjust the size of beam splitting and focal zone, think that each diffraction region of DOE is collected the light quantity that is fit to, on whole visual field, to guarantee even illumination.

Therefore this technology also has added benefit, and promptly the focal length of each section 1070 can be adjusted separately, even under the situation of projected angle high inclination, also can obtain more uniform focusing in whole visual field.Because this geometry has angle, small-bore θ to each diffraction section 1070, and minimum feature size is relatively large, this design can be used coaxial geometry, because utilize standard manufacture technology, can effectively get rid of zero level and mirage.Therefore do not need shielding.

The defective of this geometry is that whole element is as the aperiodicity DOE that need accurately aim at light source.The angle of divergence of laser diode light source and Energy distribution, and to the distance of optical element, also accurately control, with to each DOE part and corresponding with it projection interface zone with the energy illumination that is fit to.

Referring now to Figure 17, it is the simplification schematic side view according to the device that is used for the projection template of another preferred embodiment of the present invention structure and operation.Here, not such in the preferred embodiment as shown in figure 16, use the light source of the diode laser light source of single relatively large power, but the two-dimensional array 1080 of low power vertical cavity surface emitting laser (VCSEL) 1082 is arranged on the back of segmentation DOE 1084 and segmentation collimation/concentrating element 1086 as segmentation DOE.The quantity of VCSEL 1082 in the array 1080 and cycle and DOE section are accurately mated, thereby each VCSEL is to single DOE section 1088 illuminations.

For the projected image that does not cause being out of shape, array 1080 also need accurately be located in the element back, but, except guaranteeing that all light from each launch point enter its suitable collimation/concentrating element 1086, and the aperture of fully filling corresponding D OE section 1088 does not need to control the angle of divergence of single emission with outside the diffraction result who obtains.

The structure of Figure 17 is very compact, does not cover whole DOE 1084 because do not need to make light to propagate up to it.There is not the potential laser loss between the collimation section of DOE element in the design shown in the embodiment of image pattern 16 yet.Because each LASER Light Source is concentrated on the optical axis of its lens 1086 separately, the design of collimation/concentrating element also is simplified.Because do not need among the embodiment of image pattern 16 like that, separate DOE enough far to fill several millimeters aperture, so this design can be very compact with LASER Light Source.Because also do not need to shield the order of diffraction of not expecting, it is several millimeters plane component that whole projection module can be reduced to thickness.

Referring now to Figure 18, it is to have merged shown in Figure 13 A-15B at least a portion element in the element, is used for the rough schematic view based on the laser diode package of the virtual interface optical projection system of DOE.Here all optical elements and mechanical fitting all are miniaturized and are accommodated in the single optical package 1100, for example the expanded laser light diode case.Be installed in the laser diode chip 1102 on the fin 1104, be set at encapsulation 1100 inboards.Light beam correction optical element 1106 optionally places the front of the launch point 1112 of laser diode chip 1102, reducing the angle of divergence of astigmatism Laser emission, and provides and is roughly circular light beam.Collimation or condenser lens 1108 optionally insert in the encapsulation 1100, at the needs place light beam is focused on.

Optical element

1106 and 1108 need accurately be aimed at the direction of emission light beam by effective alignment procedures, thereby accurately locatees in the front of laser beam.The diffraction optical element DOE 1110 that comprises image template is inserted into the end of encapsulation, in position aims at and fixing.Also can DOE 1100 be arranged on the inboard or the outside of window 1114 with this element as package window.If adopt aperiodicity DOE, optionally save light beam correction optical module and/or collimating optics assembly, obtain littler and more cheap encapsulation.

Referring now to Figure 19,, it is the rough schematic view of the diffractive optical device that makes up according to another preferred embodiment of the invention and operate, and this diffractive optical device is at the device that is used for the projection template, for example before the present invention among the described embodiment, be used for scanner uni other.This device provides one dimension or two-dimensional scan in coaxial system, and without any need for reflection or deviation mirror (turningmirrors).Such system can be littler than the scanner based on speculum, more cheap and be easier to the assembling.

Figure 19 illustrates basic conception.Aperiodicity DOE 1200 is designed to make that the angle of diffraction is the function that incides the lateral position of the illumination light on the DOE.In this preferred exemplary, when the surface that DOE 1200 is crossed in collimated light beam 1202 translations, to

different positions

1214,1216,1218, collimated light beam is diffracted and focus on

discrete point

1204,1206,1208 in different focal imaging positions.Preferably, aperiodicity DOE can be configured to and make when the mutual alignment of light beam and DOE changes, the angle of diffraction can be according to the predefined function change of the relative position of input beam and DOE.Therefore, for example, before incident beam,,, can on picture screen 1210, provide the linear translation of focal beam spot when making up according to this preferred embodiment with the DOE of sinusoidal manner vibration.And, can also make up DOE and make intensity linearisation on the scanning direction.This uses for optical scanner is very useful feature.

Even have very big overlappingly between the different incoming position of light beam, make up DOE in the aperiodicity mode, make all optical diffractions to the location point of determining by the whole illumination incident area on the DOE.The function that focal position also can be used as the angle of diffraction changes, to keep the sharp focus of hot spot in whole planar field of view.Focusing can also be undertaken by unshowned independent diffraction of the Figure 19 that is positioned at DOE 1200 downstreams or refracting element, and perhaps incident beam itself can be collimated into the point on the focal plane of equipment.

Can provide second element with identity function along the quadrature optical axis, this second element is arranged on a DOE back, with the hot spot along the emission of quadrature optical axis diffraction, therefore carries out two-dimensional scan.

It is fixing that input beam can be held, and preferably the DOE element vibrates back and forth with generation scanning light beam pattern, rather than in fact to input beam scanning, this promptly means wants the vibratory laser diode light-source.Scan first element with upper frequency, and scan second element, can generate two-dimensional grating scanning with lower frequency, simultaneously that laser intensity and scan pattern is synchronous and modulate, generate complete two-dimensional projection image.

Referring now to Figure 20, it is the rough schematic view of the diffractive optical device that makes up according to another preferred embodiment of the invention and operate, this diffractive optical device in the device of projection template, for example before the present invention among the described embodiment, be used for scanner uni other.In the embodiment of Figure 20, incident laser light beam 1220 is focused into less relatively hot spot on DOE 1222, has only any or does not have overlapping between feasible input area for the different diffraction angle.This makes and makes steering angle that bigger change takes place for less translation.Then, secondary focusing lens 1224 are inserted into diffracted beam is focused on again picture plane 1246.Different effectively input

beam positions

1230,1232,1234 cause different

focal beam spots

1240,1242,1244.

These functions can further be merged to single DOE, and wherein horizontal level determines the horizontal angle of diffraction, decision vertical diffraction angle, upright position.This schematically shows in Figure 21, and Figure 21 is to use such DOE to carry out the simplification view of two-dimensional scan.Here, with DOE 1250 be designed to make when its along two direction translations with the optical propagation direction quadrature, light beam is at the two-dimensional directional upper deflecting.For example, when light beam incides the top left side 1252 of DOE, it is focused the point 1262 on picture plane 1260 by upwards and deflection left.Equally, when light beam incides the bottom right-hand corner 1254 of DOE, it is focused the point 1264 on picture plane 1260 by and deflection to the right downwards.DOE and the function that is used for providing selectable second element of scanning to combine at orthogonal direction among Figure 19 is provided this element.As previously mentioned, be understandable that input beam is held fixing, rather than the scanning input beam, and the DOE element preferably vibrates to generate the scanning light beam pattern at two-dimensional directional.

The X of quadrature and Y scanning can be integrated into discrete component, and as shown in figure 22, it is to use in the reduced graph of the equipment of the execution DOE of the embodiment of Figure 21 two-dimensional shift.The aperiodicity DOE 1270 of two dimension as described in Figure 21, is set on the light hydraulic support 1272, and this light hydraulic support 1272 has high resonance frequency in the horizontal direction of figure.This core is connected to the vibration framework 1274 that is placed within second fixed frame 1276.Heavier inner frame 1274 combines with this core, and the resonance frequency more much lower than the resonance frequency of the light hydraulic support that is used for DOE 1270 is provided.

By with one or more piezoelectric elements 1278,, can realize diaxon, resonant grating scanning to comprise the drive entire equipment of two kinds of resonance frequencys.By the quality of adjustment DOE and support 1272 and internal oscillator framework 1274, and the rigidity of the transverse movement vibration support 1280 and the vibration support 1282 that moves both vertically, X and Y scanning frequency can correspondingly be adjusted.This design can provide compact, coaxial two-dimensional scan element.

Referring now to Figure 23, it is to make up and the rough schematic view of the diffractive optical device of operation according to the preferred embodiment of the present invention, and this diffractive optical device is at the device that is used for the projection template, be used for scanner uni other.One-dimensional scanning DOE element 1290, for example the preferred embodiment of Figure 19 is described, oscillates to different focal position 1294 in a direction, comes scanning light spot to cross as plane 1292.DOE is preferably with laser diode 1296 and collimating lens 1298 illuminations.

Referring now to Figure 24, it is that another preferred embodiment makes up and the rough schematic view of the diffractive optical device of operation according to the present invention, and this diffractive optical device is at the device that is used for the projection template, be used for scanner uni other.One-dimensional scanning DOE element 1300, for example the preferred embodiment of Figure 20 is described, oscillates to different focal position 1294 in a direction, to cross picture plane 1292 scanning light spots.DOE 1300 is preferred with laser diode 1296 and collimating lens 1298 illuminations, and the focusing that adds by attachment lens 1302 after the DOE.

It will be appreciated by those skilled in the art that and the invention is not restricted to content above-mentioned and that illustrate especially.Scope of the present invention comprises the combination and the branch thereof of above-mentioned each feature, and those skilled in the art by read foregoing the not various changes and modifications in the prior art scope that can make.

Claims

1, a kind of Electrofax comprises:

The electronic imaging transducer of the output that is expressed as image field is provided;

First imaging function that adopts described electronic imaging transducer to carry out the data input in the first one-tenth image field response user manual operation;

Adopt at least the second imaging function of described electronic imaging transducer at least the second picture of the second one-tenth image field photographed scene;

With described first and the optical module that combines with described electronic imaging transducer of described at least the second imaging function; And

Make the user described first and one of described at least the second imaging function in carry out selection operation the user be operable to the picture functional select switch.

2, Electrofax according to claim 1 also comprises and can carry out the manually operated projection dummy keyboard of described user thereon.

3, Electrofax according to claim 1 and 2, wherein, comprise the optical element that at least one can place the described transducer upstream that only is used for described at least the second imaging function selectively with described first and described at least the second imaging function and the described optical module that described electronic imaging transducer combines.

4, according to the arbitrary described Electrofax of claim 1 to 3, wherein with described first and the described optical module that combines with described electronic imaging transducer of described at least the second imaging function do not comprise the optical element upstream, that have focal power that can place the described transducer that is used for described first imaging function selectively.

5, Electrofax according to claim 1, wherein described first and second imaging functions are comprised the beam splitter relevant with wavelength with the described optical module of described electronic imaging transducer combination, its for described first and described second imaging function define independently light path.

6, according to the arbitrary described Electrofax of claim 1 to 5, wherein by at least one optical gate suitably being set blocking at least one described imaging function, described user be operable to as functional select switch can described first and one of described at least the second imaging function in carry out selection operation.

7, according to the arbitrary described Electrofax of claim 1 to 4, wherein said first and second imaging functions define independently light path.

8, according to claim 5 or 7 described Electrofaxs, wherein said independent light path is extended towards different directions.

9, Electrofax according to claim 8, wherein said independent light path has different visual fields.

10, Electrofax according to claim 5, the wherein said beam splitter relevant with wavelength separates visible spectrum and IR spectrum, uses for described first and second imaging functions respectively.

11,, comprise that also display list thereon is shown as the LCD of the described output of image field according to the arbitrary described Electrofax of claim 1 to 10.

12, according to the arbitrary described Electrofax of claim 1 to 11, wherein the described optical module with described first imaging function and the combination of described electronic imaging transducer comprises that the visual field enlarges lens.

13, a kind of Electrofax comprises:

Adopt first imaging function of described electronic imaging transducer at the first one-tenth image field photographed scene picture;

Adopt at least the second imaging function of described electronic imaging transducer at least the second one-tenth image field photographed scene picture;

Make the user can described first and one of described at least the second imaging function in carry out selection operation the user be operable to the picture functional select switch.

14, Electrofax according to claim 13, wherein with described first and the described optical module that combines with described electronic imaging transducer of described at least the second imaging function comprise the optical element that at least one can place the described transducer upstream that only is used for described at least the second imaging function selectively.

15, according to claim 13 or 14 described Electrofaxs, wherein with described first and the described optical module that combines with described electronic imaging transducer of described at least the second imaging function do not comprise the optical element upstream, that have focal power that can place the described transducer that is used for described first imaging function selectively.

16, Electrofax according to claim 13 wherein comprises beam splitter with described first and second imaging functions with the described optical module that described electronic imaging transducer combines, its for described first and described second imaging function define independently light path.

17, according to the arbitrary described Electrofax of claim 13 to 16, wherein by at least one optical gate suitably being set blocking at least one described imaging function, described user be operable to as functional select switch can described first and one of described at least the second imaging function in carry out selection operation.

18, according to the arbitrary described Electrofax of claim 13 to 15, wherein said first and second imaging functions define independently light path.

19, according to claim 16 or 18 described Electrofaxs, wherein said independent light path is extended towards different directions.

20, Electrofax according to claim 19, wherein said independent light path has different visual fields.

21,, comprise that also display list thereon is shown as the LCD of the described output of image field according to the arbitrary described Electrofax of claim 13 to 20.

22, according to the arbitrary described Electrofax of claim 13 to 21, wherein the described optical module with described first imaging function and the combination of described electronic imaging transducer comprises that the visual field enlarges lens.

23, according to the arbitrary described Electrofax of claim 1 to 22, wherein with described first and the described optical module of described at least the second imaging function and the combination of described electronic imaging transducer for fixing.

24, according to the arbitrary described Electrofax of claim 1 to 23, wherein said first with described the second one-tenth image field before imaging on the described electronic imaging transducer, each is through primary event.

25, according to the arbitrary described Electrofax of claim 1 to 23, wherein said the first one-tenth image field direct imaging on described electronic imaging transducer, and described the second one-tenth image field before imaging on the described electronic imaging transducer through two secondary reflections.

26, according to the arbitrary described Electrofax of claim 1 to 23, wherein said the second one-tenth image field direct imaging on described electronic imaging transducer, and described the first one-tenth image field before imaging on the described electronic imaging transducer through two secondary reflections.

27, Electrofax according to claim 25 wherein reflects the second time of being undertaken in described two secondary reflections by the loading mirror that rotates around pivot.

28, Electrofax according to claim 24, the reflection of wherein said the second one-tenth image field is undertaken by the loading mirror that rotates around pivot.

29, according to the described Electrofax of the arbitrary claim in front, wherein said first imaging function is carried out on the bands of a spectrum of region of ultra-red, and described second imaging function is carried out on the bands of a spectrum of visible region, described camera also comprises a plurality of filter set, and each in described first and second imaging functions used a filter set.

30, Electrofax according to claim 29, wherein said a plurality of filter set comprise:

The filter set that is used for described first imaging function, it comprises the filter of at least one described bands of a spectrum transmission in visible region and region of ultra-red, and at least one is in the transmission under the described bands of a spectrum to this region of ultra-red of described region of ultra-red, and the filter of this visible region of not transmission; And

The filter set that is used for described second imaging function, its comprise at least one in this visible region to this region of ultra-red the filter of transmission under the described bands of a spectrum.

31, Electrofax according to claim 30, wherein said first and described second imaging function guide along common optical pathways, and wherein said first and second filter set can be according to the exchange of selected imaging function.

32, according to the described Electrofax of the arbitrary claim in front, wherein carry out described user and be operable to the picture function selecting by rotating described electronic imaging transducer before the described optical module, wherein said optical module with described first and described at least the second imaging function combine with described electronic imaging transducer.

33, according to the described Electrofax of the arbitrary claim in front, wherein by rotation be positioned at before the described electronic imaging transducer speculum with will described first and described at least the second imaging function combine with described electronic imaging transducer, be operable to and look like function selecting thereby carry out described user.

34, according to the described Electrofax of the arbitrary claim in front, also comprise part transmission beam splitter, with with described first with described the second one-tenth image field combination, and wherein two described one-tenth image fields all by described part transmission beam splitter reflection once, one of described one-tenth image field is also after by the full-reflector reflection, from the transmission of described part transmission beam splitter.

35, Electrofax according to claim 34, wherein said part transmission beam splitter also is dichroic.

36, according to claim 34 or 35 described Electrofaxs, wherein said full-reflector also has focal power.

37, a kind of portable phone, it comprises:

Telephony feature;

38, a kind of personal digital assistant, it comprises:

At least one personal digital assistant functionality;

39, a kind of remote control equipment, it comprises:

Distant control function;

40, be used to produce the Optical devices of image, this image comprises a plurality of parts that are positioned at big angle of diffraction place, and described Optical devices comprise:

The diode laser light source of output beam is provided;

Be used to collimate the collimater that described output beam also limits the collimated light beam that is parallel to the guiding of collimater axle;

Be configured to the diffraction optical element that limits image, described collimated light beam from described collimater is mapped on this diffraction optical element, and the generation multiple diffraction beams, those diffracted beams limit described image and guide in the certain angle scope with respect to described collimater axle; And

Be positioned at the condenser lens in described diffraction optical element downstream, it focuses on described many light beams on the point away from described diffraction optical element.

41, according to the described Optical devices of claim 40, wherein when lacking the described condenser lens that is positioned at described diffraction optical element downstream, the described big angle of diffraction makes described image have unacceptable distortion.

42, according to the described Optical devices of claim 40, the wherein said big angle of diffraction is to form at least 30 degree with described collimater axle.

43, be used to produce the Optical devices of image, this image comprises the locational a plurality of parts that form the big angle of diffraction with axle, and described Optical devices comprise:

The diode laser light source of output beam is provided;

Receive described output beam and the light beam compensating element of the output beam of correction is provided;

Be used to limit the collimater of collimated light beam; And

Be configured to the diffraction optical element that limits image, be mapped on this diffraction optical element from the described collimated light beam of described collimater, and produce multiple diffraction beams, these diffracted beams limit described image and guide in the certain angle scope with respect to described axle.

44, according to the described Optical devices of claim 43, wherein when lacking the described condenser lens that is positioned at described diffraction optical element downstream, the described big angle of diffraction makes described image have unacceptable distortion.

45, according to the described Optical devices of claim 43, the wherein said big angle of diffraction is to form at least 30 degree with described collimater axle.

46, according to the arbitrary described Optical devices of claim 43 to 45, also comprise the condenser lens that is positioned at described diffraction optical element downstream, it focuses on described many light beams on the point away from described diffraction optical element.

47, Optical devices comprise:

The diode laser light source of output beam is provided; And

Be configured to the aperiodicity diffraction optical element that limits image template, described output beam is mapped on this aperiodicity diffraction optical element, and produces multiple diffraction beams, and these diffracted beams limit described image template.

48, according to the described Optical devices of claim 47, wherein said image template makes data be input to data input device.

49, be used for the Optical devices of projected image, comprise:

The diode laser light source of illuminating bundle is provided;

Limit the lenslet array of a plurality of concentrating elements, each concentrating element all limits output beam; And

The diffraction optical element that comprises a plurality of diffraction optics sub-elements, each sub-element combines with one of described multi beam output beam, and be configured to a part that limits image, and be mapped on each sub-element to produce multiple diffraction beams from one of described output beam of one of described concentrating element, described multiple diffraction beams limits described image together.

50, according to the described Optical devices of claim 49, wherein said image comprises template so that data are input to data input device.

51, be used for the Optical devices of projected image, comprise:

The diode laser array of source of multi beam illuminating bundle is provided;

Limit the lenslet array of a plurality of concentrating elements, each concentrating element focuses on one of described multi beam illuminating bundle; And

52, according to the described Optical devices of claim 51, wherein said image comprises template so that data are input to data input device.

53, according to claim 51 or 52 described Optical devices, wherein said diode laser array of source is vertical cavity surface emitting laser (VCSEL) array.

54, according to the arbitrary described Optical devices of claim 47 to 53, wherein said diffraction optical element limits the output window of described Optical devices.

55, a kind of integrated laser diode encapsulation comprises:

The laser diode chip of emission light beam;

Revise the light beam compensating element of described light beam;

Focus on described correction beams focusing element; And

Produce the diffraction optical element of image from described light beam.

56, according to the described integrated laser diode encapsulation of claim 55, wherein said image comprises template so that data are input to data input device.

57, a kind of integrated laser diode encapsulation comprises:

The laser diode chip of emission light beam; And

Produce the aperiodicity diffraction optical element of image from described light beam.

58, according to the described integrated laser diode encapsulation of claim 57, wherein said image comprises template so that data are input to data input device.

59, a kind of Optical devices comprise:

The input illuminating bundle;

The aperiodicity diffraction optical element of described illumination beam on it; And

Translation mechanism is used to change the position that described input beam shines, wherein on described diffraction optical element

Described diffraction optical element make described input beam with an angular deflection to the perspective plane, this angle changes according to the predefined function of described irradiation position.

60, according to the described Optical devices of claim 59, the described DOE of wherein said translation mechanism translation.

61, according to claim 59 or 60 described Optical devices, wherein said irradiation position changes with sinusoidal manner.

62, according to the arbitrary described Optical devices of claim 59 to 61, wherein said predefined function provides linear scan.

63, according to the arbitrary described Optical devices of claim 59 to 62, wherein said predefined function provides the scanning that produces the image with uniform strength.

64, according to the arbitrary described Optical devices of claim 59 to 63, wherein said input beam is a collimated light beam.

65, according to the arbitrary described Optical devices of claim 59 to 63, wherein said input beam is a focused beam, and described device also comprises condenser lens, so that described diffracted beam is focused on the described perspective plane.

66, according to the arbitrary described Optical devices of claim 59 to 65, the described predefined function of wherein said irradiation position makes described light beam in two-dimensional directional deflection.

67, according to the described Optical devices of claim 66, wherein said translation mechanism is at the described DOE of one dimension direction translation.

68, according to the described Optical devices of claim 66, wherein said translation mechanism is at the described DOE of two-dimensional directional translation.

69, a kind of coaxial two-dimension optical scanning means comprises:

Make the diffraction optical element of light beam in two-dimensional directional deflection, the incoming position of this deflection and described the above light beam of diffraction optical element has functional relation;

The light hydraulic support structure that described diffraction optical element is mounted thereto;

At first framework of described light hydraulic support structure outside, described light hydraulic support is connected to described first framework by first support element, makes described light hydraulic support structure to vibrate with first frequency at first direction;

At second framework of described first framework outside, described first framework is connected to described second framework by second support element, makes described second framework to vibrate with second frequency in second direction; And

At least one driving mechanism is used for exciting the vibration of the vibration of described first frequency and described second frequency at least a.

70, according to the described Optical devices of claim 69, wherein said first frequency is higher than described second frequency.

71, according to the described Optical devices of claim 70, wherein said scanning is raster scan.

72, according to the described Optical devices of claim 59, also comprise:

The diode laser light source of emissive lighting light beam; And

Described illuminating bundle is focused on lens on the described perspective plane.

73, according to the described Optical devices of claim 59, also comprise:

The diode laser light source of emissive lighting light beam; And

Described illuminating bundle is focused on first lens on the described diffraction optical element; And

Described deflection illuminating bundle is focused on second lens on the described perspective plane.

74, according to the arbitrary described Optical devices of claim 59 to 73, wherein said device can project to the data input template on the described perspective plane.

75, according to the arbitrary described Optical devices of claim 59 to 73, wherein said device can project video images onto on the described perspective plane.