CN220108354U - Photochromic shell and intelligent terminal - Google Patents

Abstract

The utility model provides a photochromic shell and an intelligent terminal, wherein the photochromic shell comprises a transparent substrate and a texture film, the transparent substrate comprises a first surface and a second surface which are oppositely arranged, the first surface is provided with a concave-convex structure for changing refraction and reflection of light, and the texture film is attached to the second surface. The photochromic shell can see the photochromic effect and has low cost.

Description

Photochromic shell and intelligent terminal

Technical Field

The utility model relates to the technical field of intelligent equipment shells, in particular to a photochromic shell and an intelligent terminal.

Background

The color of the existing shell is usually that an ink layer is sprayed on the appearance surface of the shell, so that the appearance of the shell has a preset color and pattern.

In the course of conception and implementation of the present utility model, the inventors found that at least the following problems exist: because the ink layer is thinner, when the shell is watched from the front, the color of the shell is thinner, the transparency is insufficient, and the stereoscopic or texture cool effect cannot be generated.

The foregoing description is provided for general background information and does not necessarily constitute prior art.

Disclosure of Invention

The utility model aims to provide a photochromic shell, which has specific photochromic effect and low cost.

In order to solve the technical problems, the utility model provides a photochromic shell, which comprises a transparent substrate and a texture film, wherein the transparent substrate comprises a first surface and a second surface which are oppositely arranged, the first surface is provided with a concave-convex structure for changing a light path, and the texture film is attached to the second surface.

Optionally, the relief structure is used to alter refraction and/or reflection of light.

Optionally, the relief structure comprises at least one protrusion and at least one recess, the height of the protrusion relative to the second surface being greater than the height of the recess relative to the second surface.

Optionally, the protruding portion includes at least three ridge portions and a top portion where each ridge portion meets, and a refraction surface and a reflection surface of the protruding portion are disposed between two adjacent ridge portions.

Optionally, at least one of the ridge portions is provided with a chamfer structure, and the chamfer structure is connected between two adjacent refraction and reflection surfaces through an arc surface.

Optionally, the diameter of the arc surface is greater than or equal to 1mm.

Optionally, at least two of the ridge portions of each of the protruding portions have different inclination angles with respect to the second surface.

Optionally, the height of the protruding portion relative to the second surface is 0.5mm to 2.2mm.

Optionally, the first surface is covered with a structural layer, and the concave-convex structure is integrally formed on the structural layer.

Optionally, the material of the transparent substrate is plastic.

The utility model also provides an intelligent terminal comprising any one of the photochromic shells.

According to the photochromic shell, light rays are refracted and/or reflected through the concave-convex structure, textures or patterns of the texture film can be seen through the change of the light rays, different visual experiences are generated, the photochromic effect is achieved, for example, the texture film has the effects of gradual change, 3D and the like, and the cool and dazzling quality of a product can be improved. In addition, the photochromic shell adopts photochromism, and is cheaper than electrochromic, so that the cost can be effectively reduced.

The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the teachings of the present utility model, as well as the preferred embodiments thereof, together with the following detailed description of the utility model, given by way of illustration only, together with the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model. In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic hardware structure diagram of an intelligent terminal for implementing various embodiments of the present utility model;

FIG. 2 is a schematic perspective view of a photochromic shell according to the present utility model;

FIG. 3 is a schematic side view of the photochromic housing of the present utility model;

FIG. 4 is a schematic cross-sectional structural view of a photochromic shell according to one embodiment of the present utility model;

fig. 5 is a schematic cross-sectional structural view of a photochromic shell according to another embodiment of the present disclosure.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments. Specific embodiments of the present utility model have been shown by way of the above drawings and will be described in more detail below. The drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but rather to illustrate the inventive concepts to those skilled in the art by reference to the specific embodiments.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the utility model. Rather, they are merely examples of apparatus and methods consistent with aspects of the utility model as detailed in the accompanying claims.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the element defined by the phrase "comprising one … …" does not exclude the presence of additional identical elements in a process, method, article, or apparatus that comprises the element, and alternatively, elements having the same name in different embodiments of the utility model may have the same meaning or may have different meanings, a particular meaning of which is to be determined by its interpretation in this particular embodiment or further in connection with the context of this particular embodiment.

It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope herein. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context. Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," and/or "including" specify the presence of stated features, steps, operations, elements, components, items, categories, and/or groups, but do not preclude the presence, presence or addition of one or more other features, steps, operations, elements, components, items, categories, and/or groups. The terms "or", "and/or", "including at least one of", and the like, as used herein, may be construed as inclusive, or mean any one or any combination. For example, "including at least one of: A. b, C "means" any one of the following: a, A is as follows; b, a step of preparing a composite material; c, performing operation; a and B; a and C; b and C; a and B and C ", again as examples," A, B or C "or" A, B and/or C "means" any of the following: a, A is as follows; b, a step of preparing a composite material; c, performing operation; a and B; a and C; b and C; a and B and C). An exception to this definition will occur only when a combination of elements, functions, steps or operations are in some way inherently mutually exclusive.

It should be understood that, although the steps in the flowcharts in the embodiments of the present utility model are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited in order and may be performed in other orders, unless explicitly stated herein. Moreover, at least a portion of the steps in the figures may include at least one sub-step or at least one stage, which are not necessarily performed at the same time, but may be performed at different times, the order of their execution not necessarily occurring in turn, but may be performed alternately or alternately with other steps or at least a portion of other steps or stages.

The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrase "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined" or "in response to determination" or "when detected (stated condition or event)" or "in response to detection (stated condition or event), depending on the context.

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the following description, suffixes such as "module", "part" or "unit" for representing elements are used only for facilitating the description of the present utility model, and have no specific meaning per se. Thus, "module," "component," or "unit" may be used in combination.

The intelligent terminal may be implemented in various forms. For example, the smart terminals described in the present utility model may include smart terminals such as mobile phones, tablet computers, notebook computers, palm computers, personal digital assistants (Personal Digital Assistant, PDA), portable media players (Portable Media Player, PMP), navigation devices, wearable devices, smart bracelets, pedometers, and stationary terminals such as digital TVs, desktop computers, and the like.

In the following description, an intelligent terminal will be described as an example, and those skilled in the art will understand that the configuration according to the embodiment of the present utility model can be applied to a fixed type terminal in addition to elements particularly used for a mobile purpose.

Fig. 1 is a schematic hardware structure of an intelligent terminal implementing various embodiments of the present utility model, please refer to fig. 1, which is a schematic hardware structure of an intelligent terminal implementing various embodiments of the present utility model, the intelligent terminal 100 may include: an RF (Radio Frequency) unit 101, a WiFi module 102, an audio output unit 103, an a/V (audio/video) input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, and a power supply 111. It will be appreciated by those skilled in the art that the configuration of the intelligent terminal shown in fig. 1 is not limiting of the intelligent terminal, and the intelligent terminal may include more or less components than those illustrated, or may combine certain components, or may have a different arrangement of components.

The following describes the components of the intelligent terminal in detail with reference to fig. 1:

the radio frequency unit 101 may be used for receiving and transmitting signals during the information receiving or communication process, specifically, after receiving downlink information of the base station, processing the downlink information by the processor 110; and, the uplink data is transmitted to the base station. Typically, the radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol including, but not limited to, GSM (Global System of Mobile communication, global system for mobile communications), GPRS (General Packet Radio Service ), CDMA2000 (Code Division Multiple Access, 2000, CDMA 2000), WCDMA (Wideband Code Division Multiple Access ), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, time Division synchronous code Division multiple access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution, frequency Division duplex long term evolution), TDD-LTE (Time Division Duplexing-Long Term Evolution, time Division duplex long term evolution), and 5G, among others.

WiFi belongs to a short-distance wireless transmission technology, and the intelligent terminal can help a user to send and receive emails, browse webpages, access streaming media and the like through the WiFi module 102, so that wireless broadband Internet access is provided for the user. Although fig. 1 shows a WiFi module 102, it is understood that it does not belong to the essential constitution of the intelligent terminal, and can be omitted entirely as required within the scope of not changing the essence of the utility model.

The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output as sound when the intelligent terminal 100 is in a call signal reception mode, a talk mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 103 may also provide audio output (e.g., a call signal reception sound, a message reception sound, etc.) related to a specific function performed by the smart terminal 100. The audio output unit 103 may include a speaker, a buzzer, and the like.

The a/V input unit 104 is used to receive an audio or video signal. The a/V input unit 104 may include a graphics processor (Graphics Processing Unit, GPU) 1041 and a microphone 1042, the graphics processor 1041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphics processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 can receive sound (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, and the like, and can process such sound into audio data. The processed audio (voice) data may be converted into a format output that can be transmitted to the mobile communication base station via the radio frequency unit 101 in the case of a telephone call mode. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting the audio signal.

The intelligent terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Optionally, the light sensor includes an ambient light sensor and a proximity sensor, optionally, the ambient light sensor may adjust the brightness of the panel 1061 according to the brightness of ambient light, and the proximity sensor may turn off the panel 1061 and/or the backlight when the smart terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the acceleration in all directions (generally three axes), and can detect the gravity and direction when stationary, and can be used for applications of recognizing the gesture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and knocking), and the like; as for other sensors such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc. that may also be configured in the mobile phone, the detailed description thereof will be omitted.

The display unit 106 is used to display information input by a user or information provided to the user. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display (Liquid Crystal Display, LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 107 may be used to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the intelligent terminal. Alternatively, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect touch operations thereon or thereabout by a user (e.g., operations of the user on the touch panel 1071 or thereabout by using any suitable object or accessory such as a finger, a stylus, etc.) and drive the corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device and a touch controller. Optionally, the touch detection device detects the touch azimuth of the user, detects a signal brought by touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into touch point coordinates, and sends the touch point coordinates to the processor 110, and can receive and execute commands sent from the processor 110. Further, the touch panel 1071 may be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 107 may include other input devices 1072 in addition to the touch panel 1071. Alternatively, other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, mouse, joystick, etc., as specifically not limited herein.

Alternatively, the touch panel 1071 may overlay the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or thereabout, the touch panel 1071 is transferred to the processor 110 to determine the type of touch event, and the processor 110 then provides a corresponding visual output on the panel 1061 according to the type of touch event. Although in fig. 1, the touch panel 1071 and the display panel 1061 are two independent components for implementing the input and output functions of the smart terminal, in some embodiments, the touch panel 1071 may be integrated with the display panel 1061 to implement the input and output functions of the smart terminal, which is not limited herein.

The interface unit 108 serves as an interface through which at least one external device can be connected with the intelligent terminal 100. For example, the external devices may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or at least one element within the smart terminal 100 or may be used to transmit data between the smart terminal 100 and an external device.

Memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, and alternatively, the storage program area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, phonebook, etc.) created according to the use of the handset, etc. In addition, memory 109 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.

The processor 110 is a control center of the intelligent terminal, connects various parts of the entire intelligent terminal using various interfaces and lines, and performs various functions of the intelligent terminal and processes data by running or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the intelligent terminal. The processor 110 may include one or at least one processing unit; preferably, the processor 110 may integrate an application processor and a modem processor, the application processor optionally handling mainly an operating system, a user interface, an application program, etc., the modem processor handling mainly wireless communication. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The intelligent terminal 100 may further include a power source 111 (such as a battery) for supplying power to the respective components, and preferably, the power source 111 may be logically connected to the processor 110 through a power management system, so as to implement functions of managing charging, discharging, power consumption management, etc. through the power management system.

Although not shown in fig. 1, the intelligent terminal 100 may further include a bluetooth module or the like, which is not described herein.

Fig. 2 is a schematic perspective view of a photochromic housing according to the present utility model, fig. 3 is a schematic side view of the photochromic housing according to the present utility model, fig. 4 is a schematic cross-sectional view of the photochromic housing according to an embodiment of the present utility model, and as shown in fig. 2, 3 and 4, the photochromic housing 10 includes a transparent substrate 11 and a textured film 12, the transparent substrate 11 includes a first surface 111 and a second surface 112 disposed opposite to each other, the first surface 111 is provided with a concave-convex structure 13 for changing refraction and reflection of light, and the textured film 12 is attached to the second surface 112. In this embodiment, the concave-convex structure 13 may be directly formed on the first surface 111 of the transparent substrate 11, that is, the concave-convex structure 13 is integrally formed with the transparent substrate 11, or the concave-convex structure 13 is formed on the structural layer 14 attached to the first surface 111.

According to the photochromic shell 10 disclosed by the utility model, the concave-convex structure 13 refracts and/or reflects light, and the texture or pattern of the texture film 12 can be seen through the change of the light, so that different visual experiences are generated, and the photochromic effect is achieved, for example, the texture film 12 has the effects of gradual change, 3D (three-dimensional) and the like, and the cool and dazzling quality of a product can be improved. Furthermore, the photochromic shell 10 of the utility model adopts photochromism, which is cheaper than electrochromic, and can effectively reduce the cost.

Alternatively, the relief structure 13 can be formed by plastic injection molding, hot pressing or CNC fabrication.

Alternatively, the transparent substrate 11 is a flat plate, for example, the first surface 111 and the second surface 112 are parallel to each other.

Alternatively, the transparent substrate 11 includes a first end and a second end disposed opposite to each other, and the thickness of the first end is greater than that of the second end, and the thickness of the transparent substrate 11 gradually decreases from the first end to the second end.

Optionally, the relief structure 13 comprises at least one protrusion 131 and at least one recess 132, the height of the protrusion 131 relative to the second surface 112 being greater than the height of the recess 132 relative to the second surface 112. In the present embodiment, the concave-convex structure 13 includes at least one convex portion 131 and at least one concave portion 132, and the at least one convex portion 131 is disposed around the one concave portion 132.

Optionally, the convex portion 131 includes at least three ridge portions 1311 and a top portion 1312 where each ridge portion 1311 meets, and between two adjacent ridge portions 1311 is a folded and reflective surface 1313 of the convex portion 131. In the present embodiment, the at least one ridge 1311 of the at least one protrusion 131 extends to the bottom of the at least one recess 132.

Optionally, at least two of the refractive, reflective surfaces 1313 of each bulge 131 are different in area.

Optionally, at least one ridge 1311 is provided with a chamfer structure connected between two adjacent facets 1313 by an arcuate surface. In this embodiment, the chamfer structure can prevent the ridge portion 1311 from cutting hands.

Alternatively, the diameter of the circular arc surface is greater than or equal to 1mm, alternatively, the diameter may be 1.5mm, 2mm, 2.5mm, 3mm.

Optionally, at least two ridge portions 1311 of each protrusion 131 have different inclination angles with respect to the second surface 112. When one protrusion 131 has three ridge portions 1311, the first ridge portion 1311 of the protrusion 131 has an inclination angle of 5 °, the second ridge portion 1311 has an inclination angle of 5 °, and the third ridge portion 1311 has an inclination angle of 8 °; alternatively, the first ridge portion 1311 of the protrusion 131 has an inclination angle of 5 °, the second ridge portion 1311 has an inclination angle of 7 °, and the third ridge portion 1311 has an inclination angle of 9 °.

Optionally, at least two ridge portions 1311 of each protrusion 131 are different in length. When a protrusion 131 has three ridge portions 1311, the length of the first ridge portion 1311 of the protrusion 131 is 0.5cm, the length of the second ridge portion 1311 is 0.5cm, and the length of the third ridge portion 1311 is 1cm; alternatively, the first ridge 1311 of the protrusion 131 has a length of 0.5cm, the second ridge 1311 has a length of 1cm, and the third ridge 1311 has a length of 1.5cm.

Alternatively, the height of the protrusion 131 with respect to the second surface 112 is 0.5mm to 2.2mm, alternatively, the height may be 0.8mm, 1.0mm, 1.4mm, 1.6mm, 1.8mm.

Alternatively, fig. 5 is a schematic cross-sectional structural diagram of a photochromic shell according to another embodiment of the present utility model, as shown in fig. 5, the first surface 111 is covered with a structural layer 14, and the concave-convex structure 13 is integrally formed on the structural layer 14, that is, the photochromic shell 10 of the present utility model is composed of three layers of the structural layer 14, the transparent substrate 11 and the textured film 12.

Optionally, the material of the transparent substrate 11 is plastic.

The utility model also provides an intelligent terminal 100, which comprises the photochromic shell 10, wherein the photochromic shell 10 is arranged on the back surface of the intelligent terminal 100. Please refer to the above for the structure and function of the intelligent terminal 100, and the description thereof is omitted here.

It can be understood that the above scenario is merely an example, and does not constitute a limitation on the application scenario of the technical solution provided by the embodiment of the present utility model, and the technical solution of the present utility model may also be applied to other scenarios. For example, as one of ordinary skill in the art can know, with the evolution of the system architecture and the appearance of new service scenarios, the technical solution provided by the embodiment of the present utility model is also applicable to similar technical problems.

The foregoing embodiment numbers of the present utility model are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.

The steps in the method of the embodiment of the utility model can be sequentially adjusted, combined and deleted according to actual needs.

The units in the device of the embodiment of the utility model can be combined, divided and deleted according to actual needs.

In the present utility model, the same or similar term concept, technical solution and/or application scenario description will be generally described in detail only when first appearing and then repeatedly appearing, and for brevity, the description will not be repeated generally, and in understanding the present utility model technical solution and the like, reference may be made to the previous related detailed description thereof for the same or similar term concept, technical solution and/or application scenario description and the like which are not described in detail later.

In the present utility model, the descriptions of the embodiments are emphasized, and the details or descriptions of the other embodiments may be referred to.

The technical features of the technical scheme of the utility model can be arbitrarily combined, and all possible combinations of the technical features in the above embodiment are not described for the sake of brevity, however, as long as there is no contradiction between the combinations of the technical features, the utility model shall be considered as the scope of the description of the utility model.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present utility model may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) as above, comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, a controlled terminal, or a network device, etc.) to perform the method of each embodiment of the present utility model.

The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the utility model, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims (10)

1. The photochromic shell is characterized by comprising a transparent substrate and a texture film, wherein the transparent substrate comprises a first surface and a second surface which are oppositely arranged, the first surface is provided with a concave-convex structure for changing a light path, and the texture film is attached to the second surface.

2. The photochromic housing of claim 1 wherein the relief structure comprises at least one protrusion and at least one depression, the height of the protrusion relative to the second surface being greater than the height of the depression relative to the second surface.

3. The photochromic housing of claim 2 wherein the projection comprises at least three ridge portions and a top portion where each ridge portion meets, and wherein between two adjacent ridge portions is a refractive and reflective surface of the projection.

4. A photochromic housing according to claim 3 wherein at least one of said ridge portions is provided with a chamfer structure connected between adjacent two of said refractive and reflective surfaces by an arcuate surface.

5. The photochromic housing of claim 4 wherein the diameter of the arcuate surface is greater than or equal to 1mm.

6. A photochromic housing according to claim 3 wherein at least two of said ridge portions of each said protrusion have different angles of inclination relative to said second surface.

7. The photochromic housing of claim 2 wherein the height of the protrusions relative to the second surface is from 0.5mm to 2.2mm.

8. The photochromic housing of any one of claims 1 to 7 wherein the first surface is covered with a structural layer, the relief structure being integrally formed on the structural layer.

9. The photochromic housing of any one of claims 1 to 7 wherein the material of the transparent substrate is plastic.

10. An intelligent terminal comprising the photochromic housing of any one of claims 1 to 9.