TW202131025A - Complex prism module and imaging apparatus - Google Patents

Abstract

A complex prism module includes a first prism and a second prism. The first prism includes a first light-incident surface, a first reflecting surface, and a first light-emitting surface those are connected to each other, and the first light-incident surface and the first light-emitting surface are connected to a first edge. The second prism includes a second light-incident surface, a second reflecting surface, and a second light-emitting surface those are connected to each other, and the second light-incident surface and the second light-emitting surface are connected to a second edge. The first light incident surface and the second light incident surface are monolithically formed, the first light incident surface and the second light incident surface are connected to each other and are coplanar, the first reflecting surface and the second reflecting surface are connected to a third edge, a gap exists between the third edge and the connection of the first light incident surface and the second light incident surface, and the first edge and the second edge are parallel to each other and far away from each other.

Description

Composite image capture module and image capture module

The present invention relates to a dual frame structure, in particular to a composite frame module and an image capturing module using the composite frame module.

In situations where wide-angle photography is required, in order to avoid image distortion caused by the acquisition of a single large field of view, a dual-frame structure is used to capture images. After the small field of view images are obtained by two small fields, the images are stitched by back-end processing. Large field of view image.

In order to reduce the width of the double ridge structure, the corresponding corners between the two ridges are cut, and the two ridges are connected with optical glue to form a suture line between the two ridges. The aforementioned optical glue will select the type whose optical characteristics (especially refractive index) are close to the optical characteristics of the 稜鏡. However, the process of optical glue bonding is prone to air bubbles, uneven glue application, excess glue overflow or lack of glue, etc., which causes media change problems, causing the light passing through the suture to pass through media with inconsistent optical characteristics (optical glue, air,稜鏡), causing multiple refraction to produce the problem of flare in the imaging result. In addition, the uneven application of the optical adhesive will also affect the adhesion between the two ridges, causing the light incident surface composed of the two ridges to be bent and deformed.

In view of the above-mentioned problems, the present invention proposes a composite beam module and an image capturing module using the composite beam module to avoid the generation of flares.

At least one embodiment of the present invention provides a composite beam module, which includes a first beam and a second beam. The first beam has a first light-incident surface, a first reflective surface, and a first light-emitting surface that are connected to each other, and the first light-incident surface and the first light-emitting surface are connected to a first side. The second beam has a second light-incident surface, a second reflective surface, and a second light-emitting surface that are connected to each other, and the second light-incident surface and the second light-emitting surface are connected to a second side.

Wherein, the first light incident surface and the second light incident surface are integrally formed, the first light incident surface and the second light incident surface are connected to each other and are coplanar, and the first reflecting surface and the second reflecting surface are connected to a third side. The connection of the first light incident surface and the second light incident surface is separated from the third side edge, and the first side edge and the second side edge are parallel to each other and far away from each other.

In at least one embodiment of the present invention, the first reflective surface and the second reflective surface have reflective coatings.

In at least one embodiment of the present invention, there is a first included angle between the first light incident surface and the first reflective surface, and a second included angle exists between the second light incident surface and the first reflective surface. There is a third included angle between the second reflective surfaces, and the sum of the first, second, and third included angles is 180 degrees.

In at least one embodiment of the present invention, the composite frame module further includes a frame with a bottom surface, and a first oblique side surface and a second oblique side surface extending on two opposite sides of the bottom surface; wherein, the first oblique side surface The two reflecting surfaces are used for fixing on the second inclined side surface, and the first reflecting surface is used for fixing on the first inclined side surface.

In at least one embodiment of the present invention, the third included angle between the first reflective surface and the second reflective surface is equal to the included angle between the first oblique side surface and the second oblique side surface.

In at least one embodiment of the present invention, the first oblique side surface and the second oblique side surface have reflective coatings.

In at least one embodiment of the present invention, the rigidity coefficient of the frame is greater than the rigidity coefficients of the first frame and the second frame.

In at least one embodiment of the present invention, the frame is a reflective frame made of glass, and the first frame and the second frame are plastic frames.

At least one embodiment of the present invention also provides an image capturing module, which includes the aforementioned composite camera module and two image cameras. The two image cameras are directly or indirectly fixed to the first light-emitting surface and the second light-emitting surface, and capture images toward the first light-emitting surface and the second light-emitting surface, respectively.

In at least one embodiment of the present invention, the composite lens frame module further includes a lens frame with a bottom plate and a vertical plate, the vertical plate extends perpendicularly to the bottom plate; wherein the bottom surface of the lens frame is provided with a vertical plate so that the first The oblique side surface and the second oblique side surface are perpendicular to the bottom plate, and the first and second ridges are arranged on the bottom plate, so that the first light incident surface and the second light incident surface are perpendicular to the bottom plate, and the first reflection surface and the second reflection surface Combine it with 稜鏡架.

At least one embodiment of the present invention further provides an image capturing module, which includes the aforementioned composite camera module and two image cameras. The two image cameras are fixed on the lens frame, and capture images toward the first light-emitting surface and the second light-emitting surface respectively.

In at least one embodiment of the present invention, the lens frame further includes two brackets that extend from the bottom plate and respectively correspond to the first light-emitting surface and the second light-emitting surface; the two image cameras are respectively fixed to each bracket.

The present invention replaces the splicing of the two splices by the integrally formed double splice structure, thereby avoiding the problem of flare generated at the splicing position. At the same time, in at least one embodiment of the present invention, a frame made of a material with a higher rigidity coefficient is added, which can avoid deformation of the double frame frame and maintain the flatness of the light incident surface; therefore, the double frame frame can be modified. It is made of low-cost optical plastic, which effectively reduces the production cost.

Please refer to FIG. 1, FIG. 2 and FIG. 3, which are a composite beam module 100 disclosed in an embodiment of the present invention. The composite beam module 100 is used for capturing images with a large viewing angle to obtain two splicable According to the images, a large-view image is formed. The composite frame module 100 includes a first frame 110 and a second frame 120.

As shown in FIGS. 1, 2 and 3, the first beam 110 has a first light-incident surface 111, a first reflective surface 112 and a first light-emitting surface 113 connected to each other. The first light-incident surface 111 and the first light-emitting surface 113 are connected to a first side 114. The second beam 120 has a second light-incident surface 121, a second reflective surface 122, and a second light-emitting surface 123 that are connected to each other. The second light-incident surface 121 and the second light-emitting surface 123 are connected to a second side. Side 124.

As shown in FIGS. 1, 2 and 3, the first light incident surface 111 and the second light incident surface 121 are connected to each other and are coplanar. The dotted line shown in FIG. 1 is used to mark the first light incident surface 111 and the second light incident surface. The distinction of the glossy surface 121 is not a line of a physical structure. The first reflective surface 112 and the second reflective surface 122 are connected to a third side 103. In a specific embodiment, the first reflective surface 112 and the second reflective surface 122 are provided with reflective coatings to strengthen the first reflective surface The reflection effect of 112 and the second reflection surface 122 prevents light from penetrating. The connection between the first light incident surface 111 and the second light incident surface 121 has a distance from the third side 103, and the first side 114 and the second side 124 are parallel to each other and far away from each other. That is, the first ridge 110 and the second ridge 120 are integrally formed to form a composite ridge module 100 with a double ridge structure.

In addition, as shown in FIG. 2, there is a first included angle a1 between the first light incident surface 111 and the first reflective surface 112, and a second included angle a2 exists between the second light incident surface 121 and the first reflective surface 112. There is a third included angle a3 between the first reflective surface 112 and the second reflective surface 122, and the sum of the first, second, and third included angles a1, a2, and a3 is 180 degrees.

As shown in FIGS. 4 and 5, in order to keep the first light incident surface 111 and the second light incident surface 121 coplanar without warping and deformation of the plane, the composite beam module 100 of the embodiment of the present invention may It further includes a frame 130. The frame 130 has a bottom surface 133 and a first oblique side surface 131 and a second oblique side surface 132 extending on two opposite sides of the bottom surface 133. The second reflective surface 122 is used to be fixed to the second inclined side surface 132, and the first reflective surface 112 is used to be fixed to the first inclined side surface 131.

As shown in FIGS. 4 and 5, the third included angle a3 between the first reflective surface 112 and the second reflective surface 122 is equal to the included angle between the first oblique side surface 131 and the second oblique side surface 132. The first reflecting surface 112 and the second reflecting surface 122 are respectively combined with the first oblique side surface 131 and the second oblique side surface 132, and the third included angle a3 can maintain a fixed angle through the frame 130, so that the first light incident surface 111 and The second light incident surface 121 maintains a coplanar plane. Therefore, in terms of the configuration of material properties, the rigidity coefficient of the frame 130 can be configured to be greater than the rigidity coefficients of the first frame 110 and the second frame 120; for example, the frame 130 is a reflective frame made of glass, In addition, the first rim 110 and the second rim 120 are made of plastic rim, so as to reduce the production cost of the first rim 110 and the second rim 120, and the double rim structure can be maintained by the rim frame 130 form. The aforementioned plastic material can be, but is not limited to, polymethyl methacrylate (PMMA, namely acrylic), polystyrene (PS), polycarbonate (English: Polycarbonate, PC) and other materials that have material costs Low and easy to process optical plastic. In addition, the aforementioned reflective coatings provided on the first reflective surface 112 and the second reflective surface 122 may also be omitted, and reflective coatings are provided on the first oblique side surface 131 and the second oblique side surface 132.

As shown in FIGS. 6 and 7, the composite lens module 100 of the embodiment of the present invention may further include a lens frame 140. The lens frame 140 has a bottom plate 141 and a vertical plate 142, and the vertical plate 142 extends vertically from the bottom plate 141. The bottom surface 133 of the frame 130 is provided with a vertical plate 142 such that the first inclined side surface 131 and the second inclined side surface 132 are perpendicular to the bottom plate 141. The first beam 110 and the second beam 120 are disposed on the bottom plate 141, so that the first light incident surface 111 and the second light incident surface 121 are perpendicular to the bottom plate 141, and the first reflection surface 112 and the second reflection surface 122 are combined with the edge Frame 130.

As shown in FIGS. 8 and 9, based on the above-mentioned composite camera module 100, an embodiment of the present invention further provides an image capturing module, including the aforementioned composite camera module 100 and two image cameras 150. The image camera 150 is directly or indirectly fixed to the first beam 110 and the second beam 120, and captures images toward the first light-emitting surface 113 and the second light-emitting surface 123, respectively. In the embodiment of the present invention, the two video cameras 150 are fixed to the lens frame 140 and indirectly fixed to the first frame 110 and the second frame 120. As shown in the figure, the lens frame 140 further includes two brackets 143 extending on the bottom plate 141 respectively, and two video cameras 150 are fixed to each bracket 143 respectively. In different embodiments, the bracket 143 may be extended on the vertical plate 142; in different embodiments, each video camera 150 has an extended structure for connecting the first video camera 110 or the second video camera 120, so that the second video camera 150 It is directly fixed to the first ridge 110 and the second ridge 120.

As shown in FIG. 10, the first lens 110 and an image camera 150 form a periscope group. The combination of the first frame 110 and the video camera 150 enables the first frame 110 to have a first field-of-view (FOV1) in front of the first light incident surface 111. The second frame 120 and another video camera 150 form another periscope group. The combination of the second frame 120 and the video camera 150 makes the second frame 120 have a second field of view FOV2 in front of the second light incident surface 121. The matching of the two periscope groups can enable the composite periscope module 100 to obtain a relatively wide-angle equivalent field of view. The aforementioned equivalent field of view can be equal to FOV1 + FOV2, or slightly smaller than FOV1 + FOV2. When the equivalent field of view is equal to FOV1 + FOV2, the two image cameras 150 respectively obtain an image of half of the target scene S; the two images can be spliced by a back-end data processing circuit to form an equivalent image with a complete target scene S. When the equivalent field of view is less than FOV1 + FOV2, the images obtained by the two image cameras 150 are slightly larger than half of the target scene S, that is, the images obtained by the two image cameras 150 are partially overlapped; the two images can be processed by the back-end data processing circuit After stitching, and cropping partially overlapped, an equivalent image with a complete target scene S is formed.

The present invention replaces the splicing of the two splices by the integrally formed double splice structure, thereby avoiding the problem of flare generated at the splicing position. At the same time, in at least one embodiment of the present invention, an additional frame 130 made of a material with a higher rigidity coefficient can avoid deformation of the double frame frame and maintain the flatness of the light incident surface; therefore, the double frame frame can Change to lower cost optical plastic production, effectively reducing the production cost.

100: Composite 稜鏡 module 103: third side 110: The First Secret 111: The first light-incident surface 112: first reflecting surface 113: First Glossy Surface 114: first side 120: The Second Secret 121: second light-incident surface 122: second reflective surface 123: Second Glossy Surface 124: second side 130: yoke 133: Bottom 131: First oblique side 132: second oblique side 140: lens frame 141: bottom plate 142: Standing Board 143: Bracket 150: Video camera a1: the first included angle a2: second included angle a3: third included angle FOV1: first field of view FOV2: second field of view S: target scene

Fig. 1 is a perspective view of a first ridge and a second ridge in an embodiment of the present invention. Fig. 2 is a top view of the first and second ridges in the embodiment of the present invention. Fig. 3 is an exploded top view of the first and second ridges in the embodiment of the present invention. Fig. 4 is an exploded top view of the first frame, the second frame, and the frame in the embodiment of the present invention. Fig. 5 is a top view of the first frame, the second frame, and the frame in the embodiment of the present invention. Fig. 6 is a three-dimensional exploded view of the first frame, the second frame, the frame and the lens frame in the embodiment of the present invention. Fig. 7 is a perspective view of the first frame, the second frame, the frame and the lens frame in the embodiment of the present invention. FIG. 8 is a three-dimensional exploded view of the image capturing module in the embodiment of the present invention. FIG. 9 is a three-dimensional view of an image capturing module in an embodiment of the present invention. FIG. 10 is a top view of the image capturing module in the embodiment of the present invention.

100: Composite 稜鏡 module

110: The First Secret

111: The first light-incident surface

112: first reflecting surface

120: The Second Secret

121: second light-incident surface

122: second reflective surface

140: lens frame

141: bottom plate

142: Standing Board

Claims (12)

A composite module, including: A first beam, having a first light-incident surface, a first reflective surface, and a first light-emitting surface that are connected to each other, and the first light-incident surface and the first light-emitting surface are connected to a first side; as well as A second beam, having a second light incident surface, a second reflecting surface, and a second light emitting surface that are connected to each other, and the second light incident surface and the second light emitting surface are connected to a second side; Wherein, the first light incident surface and the second light incident surface are integrally formed, the first light incident surface and the second light incident surface are connected to each other and are coplanar, and the first reflective surface and the second reflective surface are connected to each other A third side, the connection of the first light-incident surface and the second light-incident surface is separated from the third side, and the first side and the second side are parallel to each other and Stay away from each other. The composite beam module according to claim 1, wherein the first reflective surface and the second reflective surface are provided with reflective coatings. The composite 稜鏡 module as described in claim 1, wherein: There is a first angle between the first light incident surface and the first reflecting surface, a second angle between the second light incident surface and the first reflecting surface, the first reflecting surface and the second reflecting surface There is a third included angle between the surfaces, and the sum of the first, second, and third included angles is 180 degrees. As mentioned in claim 1, the composite 稜鏡 module further includes: A frame has a bottom surface, a first oblique side surface and a second oblique side surface extending on two opposite sides of the bottom surface; wherein the second reflecting surface is used to be fixed to the second oblique side surface, the The first reflective surface is used to be fixed to the first oblique side surface. The composite 稜鏡 module as described in claim 4, in which: The third included angle between the first reflective surface and the second reflective surface is equal to the included angle between the first oblique side surface and the second oblique side surface. The composite beam module according to claim 4, wherein the first oblique side surface and the second oblique side surface have reflective coatings. The composite 稜鏡 module as described in claim 4, in which: The rigidity coefficient of the frame is greater than the rigidity coefficients of the first frame and the second frame. The composite 稜鏡 module as described in claim 7, wherein: The frame is a reflective frame made of glass, and the first frame and the second frame are plastic frames. The composite frame module according to claim 4, further comprising a lens frame with a bottom plate and a vertical plate, the vertical plate extends perpendicularly to the bottom plate; wherein the bottom surface of the frame is provided with the vertical plate , Make the first oblique side and the second oblique side perpendicular to the bottom The bottom plate, and the first reflective surface and the second reflective surface are combined with the frame. An image capture module, including: The composite jade module according to any one of claims 1 to 8; and Two image cameras are directly or indirectly fixed to the first light-emitting surface and the second light-emitting surface, and capture images toward the first light-emitting surface and the second light-emitting surface respectively. An image capture module, including: The composite piping module as described in claim 9; and Two image cameras are fixed on the lens frame and respectively capture images toward the first light-emitting surface and the second light-emitting surface. The image capturing module according to claim 11, wherein the lens frame further includes two brackets extending from the bottom plate and corresponding to the first light-emitting surface and the second light-emitting surface respectively; the two image cameras are respectively fixed to Each of the brackets.

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