Viewfinder

Abstract

The utility model provides a viewfinder, which is characterized in that an optical film assembly is arranged at an inclined first light-transmitting surface in a light-transmitting prism assembly, so that the optical film assembly can divide incident light incident along a first direction into transmission light and reflected light. The transmission light penetrates through the second light-transmitting surface of the light-transmitting component and enters the visual field of an observer; and the reflected light reflected by the optical film assembly enters the image processing assembly. And the image processing assembly is arranged on one side, perpendicular to the first direction, of the light-transmitting prism assembly, and is used for receiving the reflected light, completing an image identification and analysis function and displaying image identification information. Therefore, the image identification information and the display function of the optical viewfinder are realized.

Description

Technical Field

[0001] This utility model generally relates to the field of viewfinder technology, and specifically to a viewfinder. Background Technology

[0002] The viewfinder is the window through which you observe the scene being photographed. It is mainly used to determine the elements to be captured and to compose the shot. It can help photographers to compose the shot accurately and observe the details and overall effect of the scene.

[0003] In the prior art, viewfinders include electronic viewfinders and optical viewfinders.

[0004] An electronic viewfinder (EFF) displays the image captured by the lens in the viewfinder using photoelectric signals. It can display the entire scene to be photographed, shooting information, and camera menus. The development of EFFs relies on high-resolution, low-latency display technologies such as OLED and LCD. These technological advancements enable EFFs to provide a clearer and more realistic visual experience. Furthermore, because EFFs use electronic devices to implement the framing function, they can record video during observation.

[0005] Optical viewfinders include ordinary optical viewfinders that are separate from the lens, and TTL viewfinders that pass through the lens. However, optical viewfinders only use natural light to perform the framing function, making it difficult to simultaneously perform video recording during observation. Utility Model Content

[0006] In view of the aforementioned defects or deficiencies in the prior art, it is desirable to provide a viewfinder.

[0007] This utility model provides a viewfinder, including:

[0008] A light-transmitting prism assembly, wherein the light-transmitting prism assembly has a first light-transmitting surface and a second light-transmitting surface; a predetermined angle is sandwiched between the first light-transmitting surface and the second light-transmitting surface.

[0009] A light film assembly is disposed at the first light-transmitting surface, which is used to allow a portion of incident light incident along the first direction to be transmitted, becoming transmitted light, and a portion to be reflected, becoming reflected light; the first direction is perpendicular to the second light-transmitting surface.

[0010] The transmitted light passes through the second light-transmitting surface and enters the observer's field of vision;

[0011] An image processing component is disposed on one side of the light-transmitting prism component perpendicular to the first direction. It is used to receive the reflected light, perform image recognition and analysis, and display image recognition information.

[0012] According to the technical solution provided by this utility model, the light-transmitting prism assembly includes:

[0013] The first prism and the second prism have two cross sections that are two identical right-angled triangles, and the two planes corresponding to the hypotenuses of the two right-angled triangles are arranged parallel to each other to form the first light-transmitting surface.

[0014] The second prism has a second light-transmitting surface on the side closest to the observer's field of vision;

[0015] The optical film assembly is disposed between the surfaces corresponding to the hypotenuses of the first and second prism cross sections.

[0016] According to the technical solution provided by this utility model, the image processing component includes:

[0017] An optical sensing component is disposed on the side of the first prism parallel to the first direction, for receiving the reflected light and converting it into a first electrical signal.

[0018] An image processing device, electrically connected to an optical sensing component, is used to receive the first electrical signal and perform image recognition and analysis functions, and display image recognition information.

[0019] According to the technical solution provided by this utility model, the optical sensing component includes:

[0020] The first lens group is disposed on the side of the first prism parallel to the first direction;

[0021] A first anti-reflective coating is disposed on the surface of the first lens group near the first prism.

[0022] An optical sensor is disposed on the side of the first lens group away from the first prism, for receiving the reflected light and converting it into a first electrical signal.

[0023] According to the technical solution provided by this utility model, the optical film assembly includes: a beam splitter, which is used to cause part of the incident light to be transmitted, becoming transmitted light, and part to be reflected, becoming reflected light.

[0024] According to the technical solution provided by this utility model, the image processing device is further used to identify the image information corresponding to the reflected light and to emit a second electrical signal;

[0025] The image processing component further includes:

[0026] An OLED component is disposed on the side of the second prism parallel to the first direction and electrically connected to the image processing device, for receiving the second electrical signal and emitting OLED light according to the second electrical signal.

[0027] According to the technical solution provided by this utility model, the OLED component includes:

[0028] The second lens group is disposed on the side of the second prism parallel to the first direction;

[0029] An OLED light-reflection enhancement film is disposed on the surface of the second lens group near the second prism.

[0030] An OLED screen, wherein the OLED screen is used to receive the second electrical signal and emit the OLED light.

[0031] According to the technical solution provided by this utility model, the optical film assembly further includes:

[0032] An OLED light-reflecting film is attached to the beam-splitting film to allow the transmitted light to pass through and the OLED light to be reflected, becoming OLED reflected light; the OLED reflected light enters the observer's field of vision through the second light-transmitting surface.

[0033] According to the technical solution provided by this utility model, the OLED light reflection film is disposed on the side of the beam splitter film close to the OLED component.

[0034] According to the technical solution provided by this utility model, a second antireflective film is provided at the second light-transmitting surface.

[0035] The beneficial effects of this utility model are as follows:

[0036] A light-transmitting film assembly is disposed at the inclined first light-transmitting surface of the light-transmitting component, enabling the light-transmitting film assembly to separate incident light incident along the first direction into transmitted light and reflected light. The transmitted light passes through the second light-transmitting surface of the light-transmitting component and enters the observer's field of view; the reflected light, reflected by the light-transmitting film assembly, enters the image processing component. The image processing component is disposed on the side of the light-transmitting prism assembly perpendicular to the first direction, and is used to receive the reflected light, perform image recognition and analysis, and display the image recognition information. Thus, the image recognition and display functions of the optical viewfinder are realized. Attached Figure Description

[0037] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0038] Figure 1 This is a schematic diagram of a viewfinder structure;

[0039] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0040] Wherein: 01, incident light; 02, transmitted light; 03, reflected light; 04, OLED light; 05, OLED reflected light;

[0041] 1. Light-transmitting prism assembly; 2. Light-reflecting film assembly;

[0042] 4. Observer's field of view; 5. First prism; 6. Second prism; 7. Optical sensing component; 8. First lens group; 9. First anti-reflection coating; 10. Optical sensor; 11. Beam splitter; 12. Optical adhesive; 13. OLED component; 14. Second lens group; 15. OLED anti-reflection coating; 16. OLED screen; 17. OLED light reflection film; 18. Second anti-reflection coating. Detailed Implementation

[0043] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0044] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0045] Please refer to Figure 1 This utility model provides a viewfinder, comprising:

[0046] A light-transmitting prism assembly 1, wherein the light-transmitting prism assembly 1 has a first light-transmitting surface and a second light-transmitting surface; a set angle is sandwiched between the first light-transmitting surface and the second light-transmitting surface.

[0047] The light film assembly 2 is disposed at the first light-transmitting surface and is used to allow a portion of the incident light 01 incident along the first direction to be transmitted, becoming transmitted light 02, and a portion to be reflected, becoming reflected light 03; the first direction is perpendicular to the second light-transmitting surface.

[0048] The transmitted light 02 passes through the second light-transmitting surface and enters the observer's field of vision 4;

[0049] An image processing component is disposed on one side of the light-transmitting prism assembly 1 perpendicular to the first direction. This component receives the reflected light 03 and performs image recognition and analysis, displaying the image recognition information. Thus, the image recognition and display functions of the optical viewfinder are realized.

[0050] Specifically, in this embodiment, the angle is set to 45 degrees. The first direction is... Figure 1 The left and right directions in the middle.

[0051] Therefore, the first light-transmitting surface forms a 45-degree angle with the first direction, and the second light-transmitting surface is perpendicular to the first direction. As a result, the incident light will not experience a shift in its direction after passing through the light-transmitting prism assembly 1, and the misalignment caused by the light passing through the medium is also below the error range.

[0052] Transmitted light passes through the second light-transmitting surface of the light-transmitting prism assembly and enters the observer's field of view; reflected light, after being reflected by the light-reflecting film assembly, enters the image processing assembly. The image processing assembly is located on the side of the light-transmitting prism assembly perpendicular to the first direction, and is used to receive the reflected light and perform image digitization processing. Thus, the image recognition and analysis function of the optical viewfinder is realized, and image recognition information is displayed.

[0053] Furthermore, the light-transmitting prism assembly 1 includes:

[0054] The first prism 5 and the second prism 6 have two cross sections that are two identical right-angled triangles, and the two planes corresponding to the hypotenuses of the two right-angled triangles are arranged parallel to each other to form the first light-transmitting surface.

[0055] The second prism 6 has a second light-transmitting surface on the side closest to the observer's field of view 4;

[0056] The light film assembly 2 is disposed between the surfaces corresponding to the inclined sides of the cross sections of the first prism 5 and the second prism 6.

[0057] Specifically, both the first prism 5 and the second prism 6 are isosceles right triangles in cross-section. Their relative positions are such that their two hypotenuses are parallel, merging the first prism 5 and the second prism 6 into a single cube. The optical film assembly 2 is positioned between the two hypotenuses and is bonded to the optical film assembly 2.

[0058] Furthermore, the image processing component includes:

[0059] An optical sensing component 7 is disposed on the side of the first prism 5 parallel to the first direction, and is used to receive the reflected light 03 and convert it into a first electrical signal.

[0060] An image processing device is electrically connected to the optical sensing component 7, and is used to receive the first electrical signal, perform image recognition and analysis functions, and display image recognition information.

[0061] The image processing apparatus includes: an image processing module for recognizing objects in an image; and a video recording module for recording video.

[0062] The optical sensing component 7 includes:

[0063] The first lens group 8 is disposed on the side of the first prism 5 that is parallel to the first direction.

[0064] A first anti-reflective coating 9 is disposed on the surface of the first lens group 8 near the first prism 5.

[0065] An optical sensor 10 is disposed on the side of the first lens group 8 away from the first prism 5, for receiving the reflected light 03 and converting it into a first electrical signal.

[0066] Specifically, when visible light comes into contact with the surface of a medium, it undergoes refraction (or transmission) and reflection, thus splitting into two beams. Although the wavelength of each beam remains unchanged at the microscopic level after being split into two beams, the intensity of both beams is reduced compared to the original beam at the macroscopic level.

[0067] In this embodiment, the first lens group 8 and the second lens group 14 are combinations of multiple lenses; all visible light antireflection films and OLED antireflection films 15 can reduce surface reflection of optical elements to increase light transmittance, reduce surface reflection of the medium, and ensure brightness.

[0068] For example, the first antireflective coating 9 can increase the transmittance of the first lens group 8 to the reflected light 03, thereby reducing the reflected light at the interface between the two media, so as to ensure that the brightness is not significantly reduced as much as possible.

[0069] The specific structural design of the optical sensor 10 is existing technology. In this embodiment, its function is applied to detect visible light in order to facilitate the recording function of the viewfinder.

[0070] Further, refer to Figure 2 The optical film assembly 2 includes a beam splitter 11, which is used to transmit part of the incident light 01 to become transmitted light 02 and reflect part of it to become reflected light 03.

[0071] Specifically, the light-splitting film 11 has a light transmittance of 80% and a reflectance of 20%, which can convert most of the incident light into transmitted light, so that the light within the observer's field of view 4 will not be significantly darkened, thus prioritizing the observer's observation needs.

[0072] Furthermore, the image processing device is also used to identify the image information corresponding to the reflected light 03 and to emit a second electrical signal;

[0073] The image processing component further includes:

[0074] The OLED component 13 is provided on the side surface of the second prism 6 parallel to the first direction and is electrically connected to the image processing device, for receiving the second electrical signal and emitting OLED light 04 according to the second electrical signal.

[0075] Further, the OLED component 13 includes:

[0076] A second lens group 14, which is provided on the side surface of the second prism 6 parallel to the first direction;

[0077] An OLED light antireflection film 15, which is provided on the surface of the second lens group 14 close to the second prism 6;

[0078] An OLED screen 16, which is used for receiving the second electrical signal and emitting the OLED light 04.

[0079] In this embodiment, an OLED screen 16 is used; however, it is not limited to the OLED screen 16, and other display screens can also be used.

[0080] Further, referring to Figure 2 , the optical film component 2 further includes:

[0081] An OLED light reflection film 17, which is adhered to the beam splitting film 11, for making the transmitted light 02 transmit and making the OLED light 04 reflect to become OLED reflected light 05; the OLED reflected light 05 enters the observer's field of view 4 through the second light transmission surface.

[0082] Specifically, Figure 2 There is an optical adhesive 12 between the beam splitting film 11 and the OLED light reflection film 17, for connecting the beam splitting film 11 and the OLED light reflection film 17.

[0083] The OLED light 04 is used for representing the image information in the reflected light 03 by means of characters or symbols.

[0084] For example, when an observer is using the viewfinder provided by the present utility model to observe a lovesick bird, the image processing device can control the OLED component 13 to emit OLED light 04 according to the reflected light 03.

[0085] The specific method is as follows: Pixel points at corresponding positions on the OLED screen 16 emit OLED light 04 to form characters, such as the words "lovesick bird". The OLED light 04 is reflected by the OLED light reflection film 17 to the observer's field of view 4. At this time, the observer can simultaneously observe the lovesick bird itself (imaged by the transmitted light 02) and the words "lovesick bird" (imaged by the reflected OLED light 05).

[0086] In some embodiments, the OLED light-reflecting film 17 is disposed on the side of the beam-splitting film 11 close to the OLED component 13.

[0087] This configuration avoids the OLED light 04 from passing through the beam splitter 11 and the photoresist 12, thus preventing the beam splitter 11 from splitting the OLED light 04 and ensuring that the reflected OLED light 05 has sufficient brightness.

[0088] Furthermore, a second antireflective film 18 is provided on the second light-transmitting surface to increase the transmittance of transmitted light 02 and OLED reflected light 05.

[0089] Specifically, if the optical sensor 10 is used to detect infrared light, then the beam splitter 11 is an infrared light reflector and the OLED light reflector 17 is a visible light reflector; this method can achieve the highest overall light transmittance.

[0090] If the optical sensor 10 is used to detect visible light, then the beam splitter 11 is a visible light reflective film, and the OLED light reflective film 17 is also a visible light reflective film; however, in this case, the wavelength of the OLED light 04 can be set to a different wavelength than the incident light 01. Since visible light of different wavelengths displays different colors after imaging, using light of different wavelengths can make the imaging of the OLED light 04 more obvious and easier to observe.

[0091] The above description is merely a preferred embodiment of this utility model and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of this utility model is not limited to the specific combination of the above-described technical features, but should also cover other technical solutions formed by any combination of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in this utility model.

Claims

1. A viewfinder, characterized by, include: A light-transmitting prism assembly (1) has a first light-transmitting surface and a second light-transmitting surface; a set angle is sandwiched between the first light-transmitting surface and the second light-transmitting surface; The light film assembly (2) is disposed at the first light-transmitting surface and is used to transmit part of the incident light (01) incident along the first direction, becoming transmitted light (02), and reflect part of it, becoming reflected light (03); the first direction is perpendicular to the second light-transmitting surface. The transmitted light (02) passes through the second light-transmitting surface and enters the observer's field of vision (4); An image processing component is disposed on one side of the light-transmitting prism component (1) perpendicular to the first direction. It is used to receive the reflected light (03) and perform image recognition and analysis functions, and display image recognition information.

2. A viewfinder according to claim 1, wherein The light-transmitting prism assembly (1) includes: The first prism (5) and the second prism (6) have two cross sections that are two identical right-angled triangles, and the two planes corresponding to the hypotenuses of the two right-angled triangles are set parallel to each other to form the first light-transmitting surface. The second prism (6) has a second light-transmitting surface on the side closest to the observer's field of vision (4); The light film assembly (2) is disposed between the surfaces corresponding to the inclined sides of the cross sections of the first prism (5) and the second prism (6).

3. A viewfinder according to claim 2, wherein The image processing component includes: An optical sensing component (7) is disposed on the side of the first prism (5) parallel to the first direction, for receiving the reflected light (03) and converting it into a first electrical signal; An image processing device is electrically connected to an optical sensing component (7) to receive the first electrical signal and perform image recognition and analysis functions, and to display image recognition information.

4. A viewfinder according to claim 3, wherein The optical sensing component (7) includes: The first lens group (8) is disposed on the side of the first prism (5) parallel to the first direction; The first anti-reflective coating (9) is disposed on the surface of the first lens group (8) near the first prism (5); An optical sensor (10) is disposed on the side of the first lens group (8) away from the first prism (5) to receive the reflected light (03) and convert it into a first electrical signal.

5. A viewfinder according to claim 3, wherein The optical film assembly (2) includes a beam splitter (11), which is used to transmit part of the incident light (01) to become transmitted light (02) and reflect part of it to become reflected light (03).

6. A viewfinder according to claim 5, wherein The image processing device is also used to identify the image information corresponding to the reflected light (03) and to emit a second electrical signal; The image processing component further includes: OLED component (13), which is disposed on the side of the second prism (6) parallel to the first direction and electrically connected to the image processing device, is used to receive the second electrical signal and emit OLED light (04) according to the second electrical signal.

7. A viewfinder according to claim 6, wherein The OLED component (13) includes: The second lens group (14) is disposed on the side of the second prism (6) parallel to the first direction; An OLED light-reflecting coating (15) is disposed on the surface of the second lens group (14) near the second prism (6); An OLED screen (16) is used to receive the second electrical signal and emit the OLED light (04).

8. A viewfinder according to claim 6, wherein The optical film assembly (2) also includes: OLED light reflective film (17), the OLED light reflective film (17) is attached to the beam splitting film (11) to make the transmitted light (02) transmit and the OLED light (04) reflect to become OLED reflected light (05); the OLED reflected light (05) enters the observer's field of view (4) through the second light-transmitting surface.

9. A viewfinder according to claim 8, wherein The OLED light-reflecting film (17) is disposed on the side of the beam splitter (11) close to the OLED component (13).

10. A viewfinder according to claim 1, wherein A second antireflective film (18) is provided at the second light-transmitting surface.

Images