TWI627493B - Combined optical lens and optical imaging device using the same - Google Patents

Abstract

The present invention provides a combined optical lens and an optical imaging device having the combined optical lens. The optical imaging device includes a visible light emitting unit, an invisible light emitting unit, at least one visible light lens group, and at least one invisible light lens group, and the visible light beam provided by the visible light emitting unit passes through at least one visible light lens group and changes the direction of the radial direction. The invisible light beam provided by the invisible light emitting unit passes through at least one of the invisible light lens groups and changes the direction of the radial direction.

Description

Combined optical lens and optical imaging device having the same

The present invention relates to a combined optical lens, and more particularly to a combined optical lens for use in an optical imaging device.

In daily life, projection devices are often used to project graphics or image data onto the projection surface, which makes the user more visually comfortable when viewing, and the electronic devices have a trend toward light, thin and short. In order to meet the needs of human nature, the projection device is also becoming more and more miniaturized. It can be applied to electronic products such as 3G or 4G mobile phones, PDAs, etc., or it can be a small portable device that can be carried around, so that users can go anywhere. Use the projection device to play the movie you want to watch, and easily achieve the entertainment effect.

Please refer to FIG. 1 , which is a schematic diagram of a first structure of a conventional projection device. The projection device 2A includes a light emitting unit 21a, a display element 22a, and an optical lens 23, and the display element 22a is disposed between the light emitting unit 21a and the optical lens 23a. The display element 22a is a transmissive liquid crystal (LCD) element and emits light. The unit 21a is configured to provide a visible light beam 25 on the display element 22a, and the display element 22a presents an image image in response to the visible light beam 25 provided by the light emitting unit 21a, when the visible light beam 25 is incident on the optical lens 23 by the display element 22a and then After the external output, the image will be cast Shadow onto a projection surface 9.

Please refer to FIG. 2 , which is a schematic diagram of a second structure of a conventional projection device. The projection device 2B includes a light emitting unit 21b, a PBS (Polarized Beam Splitter) 24b, a display element 22b, and an optical lens 23, and the polarization separation 稜鏡24b is disposed between the display element 22b, the light emitting unit 21b, and the optical lens 23. Wherein, the display element 22b is a reflective liquid crystal (LCOS) element, and the visible light beam 25 provided by the light emitting unit 21b is transmitted to the display element 22b through the polarization separation 稜鏡 24b, and the display element 22b is adapted to the light-emitting unit 21b. The visible light beam 25 is provided to present an image, and when the visible light beam 25 is incident on the polarization separation aperture 24b by the display element 22b and then outputted outward through the optical lens 23, the image image is projected onto the projection surface 9.

Please refer to FIG. 3 , which is a schematic diagram of a third structure of a conventional projection device. The projection device 2C includes a light emitting unit 21c, a total internal reflection (TIR) 24c, a display element 22c, and an optical lens 23, and the total internal reflection 稜鏡24c is disposed on the display element 22c, the light emitting unit 21c, and the optical lens 23. The display element 22b is a digital micro mirror (DMD) element, and the visible light beam 25 provided by the light emitting unit 21c is transmitted to the display element 22c through the polarization separation 稜鏡 24c, and the display element 22b is illuminated. The visible light beam 25 provided by the unit 21c presents an image image. When the visible light beam 25 is incident on the total internal reflection 稜鏡 24c by the display element 22c and then outputted through the optical lens 23, the image image is projected onto the projection surface 9 on.

Please refer to FIG. 4 , which is a structural schematic diagram of an optical lens of a conventional projection device, and is also a schematic structural view of the optical lens shown in FIGS. 1 to 3 . The optical lens 23 includes an optical lens group 231, and the plurality of optical lens systems of the optical lens group 231 are sequentially arranged from the object end to the image end in the direction of the optical axis 2311; wherein the optical lens group 231 is designed to The visible light beam 25, to which the display element 22 is incident, changes direction of travel, so that the image of the display element 22 is projected and amplified in a particular direction.

Moreover, as the quality of life improves, people present images. The appeal has evolved from the traditional 2D planar image and 3D planar image to the current 3D stereoscopic image. The purpose of the appeal is to observe the authenticity of the image presentation, so that people can have the feeling of being immersed when watching. However, the conventional projection device has a single optical lens group because of its optical lens, so it is difficult to project and present a realistic 3D stereoscopic image, let alone how to achieve the naked-eye 3D effect of the conventional projection device.

In addition, in response to the demand for entertainment and convenience, people are increasingly expecting to be able to interact with the images projected by the projection device. However, under such a demand, the developer has to additionally configure other devices outside the conventional projection device. Equipment, such as sensing devices that sense human behavior, to meet people's needs, but this will cause the overall system to be large, but contrary to the trend of miniaturization.

According to the above description, the conventional projection apparatus and its optical lens still have an improved space.

It is an object of the present invention to provide a combined optical lens having a plurality of optical lens groups that respectively focus a visible light beam and an invisible light beam therethrough onto one or more focusing surfaces; wherein, respectively, different optical lenses The plurality of corresponding lens systems of the group are integrally formed to each other, which makes assembly of the combined optical lens easier and has the advantage of being miniaturized, and is therefore suitable for use in a handheld mobile device or a wearable device.

Another object of the present invention is to provide an optical imaging device having the above-described combined optical lens, which can project a 3D stereoscopic image as a sensing, and is applied to an interactive environment of human-machine interaction, which can facilitate interaction between people and 3D stereoscopic images. .

In a preferred embodiment, the present invention provides a combined optical lens comprising: a plurality of optical lens groups including at least one visible lens group and at least one invisible lens group, and any one of the visible lens groups is provided for at least one Visible beam passing through Wherein the direction of the path is changed, and any of the invisible lens groups are provided for at least one invisible light beam passing therethrough and changing the direction of the radial direction; and a housing for housing the plurality of optical lens groups.

In a preferred embodiment, one of the plurality of optical lens groups is a central optical lens group, and the other of the plurality of optical lens groups is a peripheral optical lens group, and surrounds the Central optical lens set.

In a preferred embodiment, the central optical lens group includes one of the at least one visible light lens group or one of the at least one invisible light lens group.

In a preferred embodiment, the central optical axis of one of the central optical lens groups has an angle with the peripheral optical axis of at least one of the peripheral optical lens groups.

In a preferred embodiment, the included angle is related to a viewer's position, or the included angle is less than 20 degrees.

In a preferred embodiment, one of the plurality of optical lens groups is a first optical lens group having a first lens, and the other one of the plurality of optical lens groups has one a second optical lens group of the second lens; wherein the first lens is integrally formed with the second lens.

In a preferred embodiment, the at least one visible light beam is from a display element for presenting an image frame, and the image is projected outward after the at least one visible light beam passes through the at least one visible light lens group. And/or any of the invisible lens groups includes at least one lens for allowing the at least one invisible light beam to enter from a first lens surface of the lens and output from a second lens surface of the lens; and Or the at least one invisible light beam includes at least one of an ultraviolet light beam, an infrared light beam, a near infrared light beam, and a far infrared light beam; and/or the combined optical lens system is applied to a handheld mobile device or a wearable Device.

In a preferred embodiment, the present invention also provides an optical imaging device having a combined optical lens, comprising: At least one visible light emitting unit providing a plurality of visible light beams; and a plurality of optical lens groups including at least one visible light lens group and at least one invisible light lens group, and any one of the visible light lens groups providing at least a portion of the plurality of visible light beams Therethrough and change the direction of the path, and any of the invisible lens groups pass through at least one invisible beam and change the direction of the path.

In an embodiment, the optical imaging device having the combined optical lens is an optical projection device, and the optical projection device includes at least one display component; wherein the at least one display component is due to a plurality of visible light beams At least one of the image frames is presented, and the at least one image is projected outwardly after the at least a portion of the plurality of visible light beams pass through the corresponding visible lens group.

In a preferred embodiment, the at least one display component is a single display component, and the at least one image frame includes at least a first image frame and a second image frame, or the at least one display component includes at least a first display element of the first image frame and a second display element for presenting the second image frame; wherein the at least one visible light lens group includes at least one of the first visible light lens group corresponding to the first image frame and Corresponding to one of the second image frames of the second image frame, and the first image frame is projected onto a first projection block via the first visible lens group, and the second image frame is The second visible lens group is projected onto a second projection block.

In a preferred embodiment, the first projection block and the second projection block are coplanar or non-coplanar; and/or the first projection block and the second projection block are at least partially Overlap or non-overlapping; and/or the first image frame and the second image frame are projected simultaneously or sequentially at different times.

In a preferred embodiment, one of the plurality of optical lens groups is a central optical lens group, and the other of the plurality of optical lens groups is a peripheral optical lens group, and surrounds the Central optical lens set.

In a preferred embodiment, the central optical lens group includes one of the at least one visible light lens group or one of the at least one invisible light lens group; and/or one of the central optical lens groups The axis has an angle with the peripheral optical axis of at least one of the peripheral optical lens groups.

In an embodiment, the optical imaging device having the combined optical lens further includes a housing for housing the plurality of optical lens groups; and/or the at least one invisible light beam includes an ultraviolet light beam and an infrared light. At least one of a light beam, a near-infrared beam, and a far-infrared beam; and/or one of the plurality of optical lens groups is a first optical lens group having a first lens, and the plurality of opticals The other of the lens groups is a second optical lens group having a second lens, and the first lens is coupled to the second lens.

In an embodiment, the present invention also provides an optical imaging device having a combined optical lens, comprising: at least one display element, including at least one light emitting unit, and the at least one display element is due to at least one light emitting unit Providing a plurality of light beams to present at least a first image frame and a second image frame; and a plurality of optical lens groups including at least a first visible light lens group corresponding to the first image frame and corresponding to the second image a second visible lens group of the picture, wherein the first visible lens group is used to project the first image frame onto a first projection block, and the second visible lens group is used to project the second image frame to a second projection block; wherein the first projection block and the second projection block do not completely overlap.

In a preferred embodiment, the first projection block and the second projection block are coplanar; or the first projection block and the second projection block are not coplanar.

In a preferred embodiment, the at least one display component is a single display component, and the single display component presents the first image frame and the second image frame; or the at least one display component comprises a first display component And a second Displaying the component, and the first display component presents the first image frame, and the second display component presents the second image frame.

In a preferred embodiment, the plurality of optical lens groups further includes at least one invisible lens group through which at least one invisible light beam passes and changes a direction of travel; and/or one of the plurality of optical lens groups Is a central optical lens group, and the other of the plurality of optical lens groups is a peripheral optical lens group and surrounds the central optical lens group; and/or one of the plurality of optical lens groups Is a first optical lens group having a first lens, and the other one of the plurality of optical lens groups is a second optical lens group having a second lens, and the first lens is connected to The second lens.

In a preferred embodiment, the first image frame and the second image frame are simultaneously or sequentially projected at different times.

2A‧‧‧Projector

2B‧‧‧Projector

2C‧‧‧Projector

3‧‧‧Combined optical lens

4A‧‧‧Optical imaging device

4B‧‧‧Optical imaging device

4C‧‧‧Optical imaging device

4D‧‧‧Optical imaging device

9‧‧‧projection surface

11‧‧‧ Human body

21a‧‧‧Lighting unit

21b‧‧‧Lighting unit

21c‧‧‧Lighting unit

22‧‧‧Display components

22a‧‧‧Display components

22b‧‧‧ display components

22c‧‧‧ display components

23‧‧‧ optical lens

24b‧‧‧ Polarized separation

24c‧‧‧ Total internal reflection稜鏡

25‧‧‧ visible beam

30‧‧‧Shell

31‧‧‧First optical lens unit

32‧‧‧Second optical lens unit

33‧‧‧ Third optical lens unit

34‧‧‧Fourth optical lens unit

35‧‧‧Film optical lens unit

40‧‧‧ Visible light unit

41‧‧‧First visible light emitting unit

42‧‧‧Second visible light emitting unit

43‧‧‧ Third visible light emitting unit

44‧‧‧First display element

45‧‧‧Second display element

46‧‧‧ Third display component

47‧‧‧First Invisible Light Unit

48‧‧‧Second invisible light unit

49‧‧‧Display components

51‧‧‧First projection block

52‧‧‧second projection block

53‧‧‧second projection block

71‧‧‧projection surface

72‧‧‧projection surface

81‧‧‧ visible beam

82‧‧‧Invisible light beam

83‧‧‧Infrared beam

231‧‧‧ optical lens unit

310‧‧‧ optical axis

311‧‧‧ first lens

312‧‧‧Fourth lens

313‧‧‧ seventh lens

320‧‧‧ optical axis

320C‧‧‧ optical axis

320D‧‧‧ optical axis

321‧‧‧second lens

321C‧‧‧second lens

321D‧‧‧second lens

322‧‧‧ fifth lens

322C‧‧‧ fifth lens

322D‧‧‧ fifth lens

323‧‧‧8th lens

323C‧‧‧8th lens

323D‧‧‧8th lens

330‧‧‧ optical axis

331‧‧‧ third lens

332‧‧‧ sixth lens

333‧‧‧ ninth lens

411‧‧‧ Visible light source

421‧‧‧Light source

431‧‧‧Light source

441‧‧‧ first image screen

451‧‧‧Second image

461‧‧‧ Third image screen

471‧‧‧Infrared light source

481‧‧‧Infrared light source

821‧‧‧First sensing area network

831‧‧‧Second sensing area network

2311‧‧‧ optical axis

3121‧‧‧ first lens surface

3122‧‧‧ first lens surface

L‧‧‧ hatching

Figure 1: is a schematic view of a first structure of a conventional projection device.

Figure 2 is a schematic view showing a second structure of a conventional projection device.

Fig. 3 is a schematic view showing a third structure of a conventional projection device.

Figure 4 is a schematic view showing the structure of an optical lens of a conventional projection device.

FIG. 5 is a schematic view showing the appearance of a combined optical lens according to a preferred embodiment of the present invention.

Fig. 6 is a schematic partial cross-sectional view showing the combined optical lens of Fig. 5 with reference to a section line L.

Figure 7 is a partial structural view showing an optical imaging device of the combined optical lens shown in Figure 5 in a first preferred embodiment.

Fig. 8 is a structural schematic view showing another part of the optical imaging apparatus shown in Fig. 7.

Figure 9 is the projection surface shown in Figure 7 and the first projection block thereon, A schematic diagram of the second projected block and the third projected block.

FIG. 10 is a conceptual diagram showing a network of a first sensing area projected by the first invisible light emitting unit shown in FIG. 8 and a second sensing area network projected by the second invisible light emitting unit.

Figure 11 is a partial structural view showing an optical imaging device of the combined optical lens shown in Figure 5 in a second preferred embodiment.

FIG. 12 is a partial structural view showing an optical imaging device using the combined optical lens shown in FIG. 5 in a third preferred embodiment.

Figure 13 is a partial structural view showing a fourth embodiment of the optical imaging device of the combined optical lens shown in Figure 5 in a fourth preferred embodiment.

Please refer to FIG. 5 and FIG. 6. FIG. 5 is a schematic structural view of a combined optical lens according to a preferred embodiment of the present invention, and FIG. 6 is a schematic cross-sectional view of the combined optical lens of FIG. . The combined optical lens 3 includes a first optical lens group 31, a second optical lens group 32, a third optical lens group 33, a fourth optical lens group 34, a fifth optical lens group 35, and a housing for accommodating and fixing the optical lenses The housing 30 of the lens groups 31 to 35. Next, the first optical lens group 31 includes a first lens 311, a fourth lens 312, and a seventh lens 313 along the optical axis 310, and the second optical lens group 32 is sequentially included along the optical axis 320. The second lens 321, the fifth lens 322 and the eighth lens 323, and the third optical lens group 33 sequentially includes the third lens 331, the sixth lens 332 and the ninth lens 333 along the direction of the optical axis 330; similarly, The fourth optical lens group 34 and the fifth optical lens group 35 also sequentially include a plurality of lenses (not shown) along the optical axes 340, 350 thereof, which may be the same as or different from the first optical lens group 31 and The lens arrangement of the third optical lens group 33.

Furthermore, in the preferred embodiment, the second optical lens group 32 is designed as a central optical lens group, and the first optical lens group 31, the third optical lens group 33, the fourth optical lens group 34, and the fifth The optical lens group 35 is designed to surround a peripheral optical lens group of the central optical lens group; wherein, based on consideration of a difference in viewing angle (about 6 degrees) to both human eyes, the optical axis 310 (peripheral optical axis) of the first optical lens group 31, the third optical lens group Any one of the optical axis 330 (peripheral optical axis) of 33, the optical axis 340 of the fourth optical lens group 34 (peripheral optical axis), and the optical axis 350 (peripheral optical axis) of the fifth optical lens group 35 The angle between the optical axis 320 (center optical axis) of the optical lens group 32 is less than 20 degrees, or is adjusted according to the orientation of the viewer, preferably between 3 and 4 degrees.

Preferably, but not limited thereto, the first lens 311 of the first optical lens group 31, the second lens 321 of the second optical lens group 32, and the third lens 331 of the third optical lens group 33, and the fourth The lenses of the optical lens group 34 and the fifth optical lens group 35 can be connected together, that is, the lens is formed on a single light-transmissive body in an integrally formed molding manner. Similarly, the fourth lens 312 of the first optical lens group 31, the fifth lens 322 of the second optical lens group 32, and the sixth lens 332 and the fourth optical lens group 34 and the fifth optical lens of the third optical lens group 33 are the same. The lenses of the corresponding positions of the group 35 may be integrally joined together, and the seventh lens 313 of the first optical lens group 31, the eighth lens 323 of the second optical lens group 32, and the ninth lens of the third optical lens group 33 333 and the lenses of the fourth optical lens group 34 and the fifth optical lens group 35 corresponding positions can be connected together (for example, integrally formed), so that the assembly of the combined optical lens 3 is made easier; and the combination of the present invention The optical lens 3 has the advantage of being miniaturized, and thus can be applied to a handheld mobile device such as a mobile phone, a tablet computer, or other wearable device.

Moreover, the first optical lens group 31, the second optical lens group 32, and the third optical lens group 33 are all visible light lens groups for allowing the visible light beam 81 to pass therethrough and changing the direction of the radial direction; for example, the first optical The fourth lens 312 of the lens group 31 is exemplified, and the fourth lens 312 includes a first lens surface 3121 and a second lens surface 3122 corresponding to the first lens surface 3121. When the visible light beam 81 is first transmitted from the fourth lens 312 When the mirror 3121 enters, the visible light beam 81 changes the direction of the path according to the optical/physical properties of the fourth lens 312, and is output from the second lens surface 3122 of the fourth lens 312; further, the designer can according to the actual application requirements and Lens The optical/physical properties design the number of lenses in each visible lens group and the order in which the lenses are arranged such that the visible light beam 81 incident therein travels in a particular direction.

Secondly, the fourth optical lens group 34 and the fifth optical lens group 35 are invisible lens groups for the invisible light beam passing therethrough and changing the direction of the path; the designer according to the actual application requirements and the optical/physical properties of the lens. The number of lenses in each of the invisible lens groups and the order in which the lenses are arranged are such that the invisible light beam incident therein travels in a specific direction, so the number of lenses of the fourth optical lens group 34 and the fifth optical lens group 35 and their arrangement It is not limited to being the same as the first optical lens group 31, the second optical lens group 32, or the third optical lens group 33. The invisible beam may be an ultraviolet beam, an infrared beam, a near-infrared beam or a far-infrared beam, but is not limited to the above.

Although the combined optical lens of the preferred embodiment is designed to include five optical lens groups, and each optical lens group includes three lenses (3P), respectively, it is not limited thereto, and those skilled in the art can The number of optical lens groups and the number of lenses included in each optical lens group are designed according to actual application requirements, and the number of lenses included in any two optical lens groups is not limited to be the same; of course, it can also be designed according to actual application requirements. The arrangement of the optical lens groups, the number of visible lens groups, and the number of invisible lens groups.

Please refer to FIG. 7, FIG. 8 and FIG. 9. FIG. 7 is a partial structural diagram of an optical imaging device using the combined optical lens shown in FIG. 5 in a first preferred embodiment, and FIG. 8 is an optical diagram of FIG. FIG. 9 is a schematic view showing the structure of the projection device shown in FIG. 7 and the first projection block, the second projection block, and the third projection block, and FIG. 10 is a schematic view of FIG. A conceptual diagram of a first sensing area network projected by the first invisible light emitting unit and a second sensing area network projected by the second invisible light emitting unit.

In the preferred embodiment, the optical imaging device 4A is an optical projection device, and includes a first visible light emitting unit 41, a second visible light emitting unit 42, a third visible light emitting unit 43, a first display element 44, and a second Display element 45, third display element 46, first invisible light emitting unit 47, second invisible light emitting list The element 48, the first optical lens group 31, the second optical lens group 32, the third optical lens group 33, the fourth optical lens group 34, and the fifth optical lens group 35.

In addition, referring to FIG. 7 and FIG. 9 , the first visible light emitting unit 41 , the second visible light emitting unit 42 , and the third visible light emitting unit 43 respectively include a plurality of visible light emitting sources 411 , 421 , 431 , wherein the first visible light The light-emitting unit 41 is configured to provide a plurality of visible light beams 81 to the first display element 44, and the first display element 44 presents the first image frame 441 according to the visible light beams 81, and the first image frame 441 is attached to the visible light beams. 81 passes through the first optical lens group 31 and projects outward to a first projection block 51 of a projection surface 71. Moreover, the second visible light emitting unit 42 is configured to provide a plurality of visible light beams 81 to the second display element 45, and the second display element 45 presents the second image frame 451 according to the visible light beams 81, and the second image frame 451 is After the visible light beam 81 passes through the second optical lens group 32, it is projected outward to a second projection block 52 of the projection surface 71. Similarly, the third visible light emitting unit 43 is configured to provide a plurality of visible light beams 81 to the third display element 46, and the third display element 46 presents the third image frame 461 according to the visible light beams 81, and the third image frame is displayed. The 461 is projected to the third projection block 53 of the projection surface 71 after the visible light beam 81 passes through the third optical lens group 33.

The first projection block 51, the second projection block 52, and the third projection block 53 may overlap or not completely overlap, and the complete projection block 51 and the second projection block 52 may be regarded as not being completely overlapped. The third projection block 5 is coplanar, that is, the first image frame 441, the second image frame 451, and the third image frame 46 respectively correspond to the first optical lens group 31, the second optical lens group 32, and the third optical lens group. 33 is focused on the same projection surface 71, but at least two of the first projection block 51, the second projection block 52, and the third projection block 53 only partially overlap or do not overlap at all.

Optionally, at least two of the first projection block 51, the second projection block 52, and the third projection block 53 are non-coplanar, that is, the first image frame 441, the second image frame 451, and the third image. At least two of the screens 46 are focused on different projection surfaces in response to the corresponding optical lens group, so the first projection area The at least two of the block 51, the second projection block 52, and the third projection block 53 can only partially overlap or not overlap at all; wherein the relative angle between the two non-coplanar planes is based on the orientation of the viewer And was adjusted. In addition, the first image frame 441, the second image frame 451, and the third image frame 461 can be simultaneously projected, or can be projected in a predetermined time series.

In the preferred embodiment, the first projection block 51, the second projection block 52, and the third projection block 53 are coplanar, as shown in the projection plane 71 in FIG. 7 and FIG. 9, that is, the first The lens combination in an optical lens group 31 focuses the visible light beam 81 corresponding to the first image frame 441 on the projection surface 71, and the lens combination in the second optical lens group 32 corresponds to the second image frame 451. The visible light beam 81 is also focused on the projection surface 71. Similarly, the lens combination in the third optical lens group 33 also causes the visible light beam 81 corresponding to the third image frame 461 to also be focused on the projection surface 71; wherein, the first projection block 51 and the second projection block 52 And at least two of the third projection blocks 53 at least partially overlap, and at least two of the first image frame 441, the second image frame 451, and the third image frame 461 are simultaneously projected outward. In this case, the multi-projection method can present a realistic 3D stereoscopic image and achieve the effect of naked-eye 3D, so the viewer can have an immersive experience without wearing any 3D equipment, such as 3D glasses. Realism.

In addition, referring to FIG. 8 and FIG. 10, in the preferred embodiment, the first invisible light emitting unit 47 includes a plurality of infrared light emitting sources 471, and the fourth optical lens group 34 is configured to emit the first invisible light. The invisible light beam 82 (ie, the infrared light beam) provided by the unit 47 passes through and changes the traveling direction, thereby further projecting the first sensing area network 821 in a planar shape, and then matching the infrared sensing module (not shown) The gesture behavior or other action behavior of the human body 11 in the first sensing area network 821 can be sensed.

Similarly, the second invisible light emitting unit 48 includes a plurality of infrared light emitting sources 481, and the fifth optical lens group 35 is configured to pass through the invisible light beam 83 (ie, the infrared light beam) provided by the second invisible light emitting unit 48. And changing the direction of travel to further project another second sensing area network in a planar form 831, if combined with an infrared sensing module (not shown), the gesture behavior or other action behavior of the human body 11 in the second sensing area network 831 can be sensed.

Specifically, the first sensing area network 821 and the second sensing area network 831 belong to projection surfaces of different distances with respect to the projection device, and the first sensing area network 821 and the second sensing area network 831 are designed to be nearly parallel to each other and The optical imaging device 4A is configured to be capable of sensing the human body 11 between the first sensing area network 821 and the second sensing area network 831 (ie, the three-dimensional direction, the Y-axis direction, and the Z-axis direction). The ability of the action of the space; wherein the techniques and principles of infrared sensing are known to those skilled in the art, and are not described herein.

Optionally, at least one of the first sensing area network 821 and the second sensing area network 831 is coplanar with the projection surface 71, and is coupled to the first projection block 51, the second projection block 52, and the third projection block. At least one of the plurality of 53 at least partially overlaps, so that the user can interact with the image frame projected by the optical imaging device 4A; for example, the optical imaging device 4A can project the image of the keyboard and pass the sensing The user touches the action of the button to generate a corresponding control command. Of course, the types and uses of the first invisible light emitting unit 47 and the second invisible light emitting unit 48 are only one embodiment, and are not limited thereto. Those skilled in the art can perform any equalization according to actual application requirements. The design is changed; for example, the detection process of the specific target is performed through the arrangement of the first invisible light emitting unit 47 and the fourth optical lens group 34.

Please refer to FIG. 11 , which is a partial structural diagram of an optical imaging device using the combined optical lens shown in FIG. 5 in a second preferred embodiment. The optical imaging device 4B of the preferred embodiment is substantially similar to that described in the foregoing first preferred embodiment, and will not be further described herein. The preferred embodiment of the present invention differs from the foregoing first preferred embodiment in that the optical imaging device 4B includes only a single display element 49 and a single visible light emitting unit 40, and the single display element 49 is responsive to a single visible light emitting unit. 40, the plurality of visible light beams 81 are provided to present the first image frame 441, the second image frame 451, and the third image frame 461; and, similarly, An image frame 441 is projected outwardly to the first projection block 51 after the corresponding visible light beam 81 passes through the first optical lens group 31, and the second image frame 451 is passed through the second visible light beam 81. The optical lens group 32 is projected outward to the second projection block 52, and the third image frame 461 is projected outward to the third projection block 53 after the corresponding visible light beam 81 passes through the third optical lens group 33.

Please refer to FIG. 12 , which is a partial structural diagram of an optical imaging device using the combined optical lens shown in FIG. 5 in a third preferred embodiment. The optical imaging device 4C of the preferred embodiment is substantially similar to that described in the second preferred embodiment, and will not be further described herein. The preferred embodiment of the present invention is different from the foregoing second preferred embodiment in that the second projection block 52 is not coplanar with the first projection block 51 and the third projection block 53, that is, the first An optical lens group 31 still focuses the visible light beam 81 corresponding to the first image frame 441 on the projection surface 71, and the third optical lens group 33 still focuses the visible light beam 81 corresponding to the third image frame 461. On the projection surface 71, the second optical lens group 32C in the present embodiment focuses the visible light beam 81 corresponding to the second image frame 451 on the other projection surface 72 in front of the projection surface 71 to form a multi-level Image effect.

Please refer to FIG. 13 , which is a partial structural diagram of an optical imaging device using the combined optical lens shown in FIG. 5 in a fourth preferred embodiment. The optical imaging device 4D of the preferred embodiment is substantially similar to that described in the foregoing first preferred embodiment, and will not be further described herein. The preferred embodiment is different from the foregoing first preferred embodiment in that the second projection block 52 is not coplanar with the first projection block 51 and the third projection block 53, that is, the first An optical lens group 31 still focuses the visible light beam 81 corresponding to the first image frame 441 on the projection surface 71, and the third optical lens group 33 still focuses the visible light beam 81 corresponding to the third image frame 461. On the projection surface 71, the second optical lens group 32D in the present embodiment focuses the visible light beam 81 corresponding to the second image frame 451 on the other projection surface 72 in front of the projection surface 71 to form a multi-level Image effect.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the claims of the present invention. Equivalent changes or modifications made below shall be included in the scope of the patent application in this case.

Claims (19)

A combined optical lens comprising: a plurality of optical lens groups including at least one visible lens group and at least one invisible lens group, and any one of the visible lens groups is configured to pass at least one visible light beam and change a direction of the path, and Any of the invisible lens groups are configured to pass at least one invisible beam of light therethrough and to change a direction of travel; and a housing for receiving the plurality of optical lens groups. The combined optical lens of claim 1, wherein one of the plurality of optical lens groups is a central optical lens group, and the other of the plurality of optical lens groups are respectively a periphery An optical lens group surrounds the central optical lens group. The combined optical lens of claim 2, wherein the central optical lens group comprises one of the at least one visible light lens group or one of the at least one invisible light lens group. The combined optical lens of claim 2, wherein an optical axis of one of the central optical lens groups has an angle with an optical axis of at least one of the peripheral optical lens groups. The combined optical lens of claim 4, wherein the angle is related to a viewer's position, or the angle is less than 20 degrees. The combined optical lens of claim 1, wherein one of the plurality of optical lens groups is a first optical lens group having a first lens, and the plurality of optical lens groups The other is a second optical lens group having a second lens; wherein the first lens is integrally formed with the second lens. The combined optical lens of claim 1, wherein the at least one visible light beam is from a display element for presenting an image frame, and the image is passed through the at least one visible light beam. a visible light lens group is projected outward; and/or any of the invisible light lens groups includes at least one lens for the at least one invisible light beam to enter from the first lens surface of the lens and from the lens a second lens surface output; and/or the at least one invisible light beam includes at least one of an ultraviolet light beam, an infrared light beam, a near infrared light beam, and a far infrared light beam; and/or the combined optical lens system is applied to A handheld mobile device or a wearable device. An optical imaging device having a combined optical lens, comprising: at least one visible light emitting unit providing a plurality of visible light beams; and a plurality of optical lens groups including at least one visible light lens group and at least one invisible light lens group, and any of the visible light The lens group is adapted to pass at least a portion of the plurality of visible light beams therethrough and to change a direction of travel, and any of the invisible light lens groups provide at least one invisible beam of light therethrough and change a direction of travel. An optical imaging device having a combined optical lens according to claim 8 is an optical projection device, and the optical projection device comprises at least one display element; wherein the at least one display element is visible in plurality At least one of the plurality of light beams exhibits at least one image frame, and the at least one image frame is projected outwardly after the at least a portion of the plurality of visible light beams pass through the corresponding visible light lens group. The optical imaging device with a combined optical lens according to claim 9, wherein the at least one display component is a single display component, and the at least one image frame includes at least a first image frame and a second image. Picture, or The at least one display element includes at least a first display element that presents the first image frame and a second display element that presents the second image frame; wherein the at least one visible light lens group includes at least the corresponding first image a first visible light lens group and one second visible light lens group corresponding to the second image frame, and the first image frame is projected onto a first projection block via the first visible light lens group And the second image frame is projected onto a second projection block via the second visible lens group. The optical imaging device with a combined optical lens according to claim 10, wherein the first projection block and the second projection block are coplanar or non-coplanar; and/or the first projection The block and the second projected block are at least partially overlapped or not overlapped; and/or the first image frame and the second image frame are simultaneously or sequentially projected at different times. An optical imaging device having a combined optical lens according to claim 8, wherein one of the plurality of optical lens groups is a central optical lens group, and the other of the plurality of optical lens groups They are respectively a peripheral optical lens group and surround the central optical lens group. The optical imaging device with a combined optical lens according to claim 12, wherein the central optical lens group comprises one of the at least one visible light lens group or one of the at least one invisible light lens group And/or an optical axis between one of the central optical lens groups and an optical axis of at least one of the peripheral optical lens groups. An optical imaging device having a combined optical lens according to claim 8 further comprising a housing for housing the plurality of optical lens groups; and/or the at least one invisible light beam comprising an ultraviolet light beam , an infrared beam, a near red At least one of an outer beam and a far-infrared beam; and/or one of the plurality of optical lens groups is a first optical lens group having a first lens, and wherein the plurality of optical lens groups The other is a second optical lens group having a second lens, and the first lens is coupled to the second lens. An optical imaging device having a combined optical lens, comprising: at least one display element comprising at least one light emitting unit, wherein the at least one display element presents at least one first image frame due to a plurality of light beams provided by at least one light emitting unit And a second image frame; and a plurality of optical lens groups including at least a first visible lens group corresponding to the first image frame and a second visible lens group corresponding to the second image frame, and the first The visible light lens group is configured to project the first image frame onto a first projection block, and the second visible light lens group is configured to project the second image frame onto a second projection block; wherein The first projection block and the second projection block do not completely overlap. The optical imaging device with a combined optical lens according to claim 15, wherein the first projection block and the second projection block are coplanar; or the first projection block and the second The projected blocks are not coplanar. The optical imaging device with a combined optical lens according to claim 15, wherein the at least one display component is a single display component, and the single display component presents the first image frame and the second image frame; Or the at least one display component includes a first display component and a second display component, and the first display component presents the first image frame, and the second display component presents the second image frame. The optical imaging device with a combined optical lens according to claim 15, wherein the plurality of optical lens groups further comprises at least one invisible light lens group through which at least one invisible light beam passes and changes a direction of the radial direction; And/or One of the plurality of optical lens groups is a central optical lens group, and the other of the plurality of optical lens groups are respectively a peripheral optical lens group and surround the central optical lens group; and/or One of the plurality of optical lens groups is a first optical lens group having a first lens, and the other of the plurality of optical lens groups is a second optical having a second lens a lens group, and the first lens is coupled to the second lens. The optical imaging device with a combined optical lens according to claim 15, wherein the first image frame and the second image frame are projected simultaneously or sequentially at different times.