Modern smartphone cameras integrate multiple sensors, lenses, and processing components into compact modules that protrude from device bodies. These modules face daily exposure to micro-impacts, with testing showing that typical pocket insertion generates forces of 3-5N, while drops from 1.5m can subject components to peak forces exceeding 300N.

The fundamental challenge lies in protecting sensitive optical and sensor components while maintaining image quality and preserving the slim profile that consumers demand.

This page brings together solutions from recent research—including retractable lens covers, anti-reflective hood designs, specialized lens coatings, and integrated filter systems. These and other approaches demonstrate how manufacturers are balancing protection with functionality in modern mobile device cases.

1. Smartphone Case with Enclosing Camera Module Housing and Removable Glass Film

SHENZHEN KANGCHENGTAI IND CO LTD, SHENZHEN KANGCHENGTAI INDUSTRIAL CO LTD, 2024

A camera protection case for smartphones that fully encloses the camera module to prevent damage when the phone drops. The case has a housing with a recess to hold the phone and a through hole for the camera. A removable glass film with a matching recess covers the camera. This allows the camera to be fully protected within the case when the phone is inserted. The glass film can be removed for access to the camera when needed. The case also wraps around the phone body for overall protection.

CN221058342U-patent-drawing

2. Mobile Device Case with Rigid Back Cover, Inner Frame Members, and Lens Frame

DEVILCASE COMPANY LTD, 2024

A protective case for mobile devices that provides better drop protection and prevents damage from squeezing or bending. The case has a rigid back cover, inner frame members, and a lens frame that enclose the device. The rigid back cover absorbs impact when dropped. The inner frame members prevent deformation and bending. The lens frame protects the camera.

3. Smartphone Protective Case with Annular Rod and Limiting Rings for Lens Impact Absorption

SHENZHEN LIANGBIAO TECH CO LTD, SHENZHEN LIANGBIAO TECHNOLOGY CO LTD, 2023

An anti-fall protective case for smartphones with a unique design to prevent lens damage when the phone drops. The case has a protective frame with spaced-apart limiting rings and surrounding edges. An annular rod surrounds the camera lens and is sandwiched between the limiting rings. This configuration allows the annular rod to flex and absorb impact when the phone falls, preventing the lens from colliding with the case edges and getting damaged. The limiting rings and surrounding edges prevent the annular rod from compressing too much and protecting the lens from excessive force.

4. Multi-Layer Frame Mobile Phone Case with Embedded PC Sheet and Sliding Gasket Assembly

DONGGUAN HW COMMUNICATION TECH CO LTD, DONGGUAN HW COMMUNICATION TECHNOLOGY CO LTD, 2023

Multi-layer frame vacuum mobile phone case with improved drop protection compared to single-layer cases. The case has a plastic shell with a PC sheet embedded inside. A sliding plastic gasket is installed on the inside wall of the shell. The outer wall of the PC sheet has an assembly slot. A return-shaped plastic ring is installed in this slot. This multi-layer configuration provides better impact absorption and prevents damage to the phone when dropped. The PC sheet and ring cushion impacts, while the sliding gasket compresses.

5. Electronic Device Case with Camera-Specific Airbag Assembly in Back Plate

SHENZHEN RANVOO TECH CO LTD, SHENZHEN RANVOO TECHNOLOGY CO LTD, 2023

Airbag protective case for electronic devices like smartphones that provides improved camera protection when the device falls. The case has an airbag assembly located in the camera escape hole on the back plate. This protruding airbag cushion prevents the camera from directly contacting the ground if the device falls, preventing damage to the camera lens.

CN219802392U-patent-drawing

6. Mobile Phone Shell with Sliding Camera Cover and Locking Slot Mechanism

Shenzhen Yinhao Technology Co., Ltd., 2023

This is a mobile phone shell design with a camera protection mechanism. The shell has a sliding camera cover that can be retracted to protect the camera lens from scratches and impact when not in use. The cover slides along slots with bumps on the shell to lock it in place.

US11770150B2-patent-drawing

7. Electronic Device Case with Integrated Airbag System and Camera Aperture

SHENZHEN TULASI TECH CO LTD, SHENZHEN TULASI TECHNOLOGY CO LTD, 2023

Protective case for electronic devices with an internal airbag to prevent camera damage when the device is dropped. The case has a camera avoidance hole in the back plate, and an airbag connection part around it. When assembled, a separate airbag component with a cavity connects to the part and seals to create an internal airbag. This cushions the camera area when the device falls.

CN219643961U-patent-drawing

8. Protective Electronic Device Case with Detachable Lens Connector System

SHENZHEN LITI TONG TECH CO LTD, SHENZHEN LITI TONG TECHNOLOGY CO LTD, 2023

Protective case for electronic devices like smartphones with detachable lenses that avoids screen obstruction and damage. The case has a camera opening with a connector. Lenses have matching connectors that attach to the case to cover the camera. This allows using lenses without blocking the screen or damaging the camera.

CN219536131U-patent-drawing

9. Smartphone Protective Case with Metal Reinforced Support and Insulating Frame Buffer

BEIJING XIAOMI MOBILE SOFTWARE CO LTD, 2023

Protective case for smartphones that provides protection without degrading antenna performance. The case has a camera hole for the rear camera and a support around it for holding the phone. The support has a metal part for strength and an insulating part. The metal part is located away from the phone frame to avoid interference with the frame antenna. The insulating part near the frame won't affect antenna performance due to insulation. This allows the case to protect the phone and provide support without affecting antenna reception or communication.

10. Mobile Phone Case with Dual-Layer TPU and PC Structure Featuring Snap-Fit Protrusions and Gaps

GUANGZHOU LINGXIANG ELECTRONIC PRODUCTS CO LTD, 2023

Mobile phone case that provides better protection and ease of installation compared to existing cases. The case has an inner TPU shell that contacts the phone and a outer PC frame. The PC frame snaps onto the TPU shell using protrusions and gaps. The TPU provides better shock absorption and protection against scratches. The PC frame adds rigidity and snap-fit installation. The PC frame also has features like camera notch wrapping and bottom plate fitting for complete phone coverage.

11. Protective Case with Rotatable Support Bracket and Sliding Camera Lens Cover

SHENZHEN TULASI TECH CO LTD, SHENZHEN TULASI TECHNOLOGY CO LTD, 2022

Protective case for electronic devices like smartphones that allows the device to be propped up while also protecting the camera. The case has a rotatable support bracket that can be folded or extended to prop up the device at an angle. A sliding lens cover can be moved over the camera hole when the bracket is folded to cover it. This prevents dirt entering the camera when the device is not propped up. When the bracket is extended, the cover slides aside to expose the camera.

CN218071552U-patent-drawing

12. Mobile Phone Protective Case with Internal Elastic Shock Absorbers and Graphene Coated Exterior

SHENZHEN YISE TECH CO LTD, SHENZHEN YISE TECHNOLOGY CO LTD, 2022

Shock-resistant and anti-drop mobile phone protective case with improved drop protection and anti-oxidation properties. The case has an internal spaced cavity with elastic members to absorb shock and protect the phone. It also has removable rubber corner protectors that can be replaced if worn. The exterior of the case is covered in a graphene film to prevent oxidation. The case components like the frame, corners, and elastic members are all designed to work together for enhanced drop protection and longevity.

13. Mobile Device Protective Shell with Recessed Groove and Inverted Horn for Camera and Key Engagement

SHENZHEN TULASI TECH CO LTD, SHENZHEN TULASI TECHNOLOGY CO LTD, 2022

Protective shell for mobile devices with improved camera protection. The shell has a camera cutout with a recessed groove around the edges. This creates a cavity between the camera lens and the shell that absorbs shock when dropped to prevent damage to the camera. The groove can have a sealing member, airbag, or buffer material inside. It also has an inverted horn on the sidewall near the groove to engage with keys.

CN217406599U-patent-drawing

14. Smartphone Case with Telescopic Lens, Shutter Button, External Flash, Tripod Mount, and Overheat Detection Sensors

Conor Penfold, 2022

This is a camera-enhancing case for smartphones that improves the camera capabilities of portable electronic devices. The case includes a telescopic lens for optical zoom, a shutter button for easier camera control, an external flash, and a tripod mount. It also has sensors to detect overheating and shut down the phone to prevent damage.

15. Protective Case with Modular Camera Guard Comprising Frame, Removable Protection Piece, and Support Piece

OPPO Guangdong Mobile Communications Co., Ltd., GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD, 2022

Protective case for electronic devices like smartphones that has a unique design to prevent damage to the camera module. The case has a frame, a removable protection piece, and a support piece. The protection piece has a hole that the support piece covers. The camera module is exposed through the hole in the support piece. The cover prevents direct contact with the camera while still allowing access to it. This prevents impact and scratching on the camera when the device is dropped or bumped.

CN111511136B-patent-drawing

16. Mobile Phone Case with Edge-Integrated Impact Absorbing Columns, Springs, and Balls

XUZHOU CHUANGFUJIA HOUSEHOLD CO LTD, 2021

Mobile phone case with improved drop protection for preventing damage to the screen and camera when the phone falls. The case has protective components at the edges of the front that absorb impact and cushion the phone screen. These components consist of columns, springs, and balls that isolate and protect the screen from impact when the phone falls. The case also has elastic buckles at the edges to secure the phone inside the case. This combination of edge protection and elastic retention provides better drop protection compared to standard cases.

17. Mobile Phone Case with Thickened Corner Frame and Internal Corner Indentations

SHENZHEN HUAYUXIANG PLASTIC RUBBER DIE CO LTD, 2021

Anti-drop mobile phone case with improved drop protection, especially for higher drops. The case has a soft rubber frame with thicker corners compared to the rest of the frame. Four corner indentations are spaced apart inside the frame. The hard back plate connects to the frame and has cutouts for the camera. This design provides greater corner protection against higher drops while still allowing full device functionality. It also has button holes with convex edges and grooves to securely hold the phone's volume and power buttons.

18. Mobile Terminal Protective Case with Collapsible Frame, Anti-Static Gasket, Positioning Mechanism, and Enclosing Mechanism

SHANGHAI SULONG SEMICONDUCTOR TECH CO LTD, SHANGHAI SULONG SEMICONDUCTOR TECHNOLOGY CO LTD, 2021

Protective case for mobile terminals that provides impact resistance, ESD protection, and secure closure to prevent damage from drops and static discharges. The case has an outer collapsible frame with an anti-collision mechanism, an inner anti-static gasket, a positioning mechanism, and an enclosing mechanism. The collapsible frame protects the device from drops. The anti-static gasket prevents ESD. The positioning mechanism aligns the device. The enclosing mechanism securely closes the case.

19. Protective Case with Movable Camera Shields and Rotatable Arm Mechanism

JINGYU TECH DONGGUAN CO LTD, JINGYU TECHNOLOGY CO LTD, 2021

Electronic device protective case with movable camera shields to prevent lens scratching and impacts without obstructing the camera view. The case has a movable arm that connects to the main shell. One shield covers the front camera and the other shield covers the rear camera. The arm can rotate or slide relative to the case body to expose the camera lenses when needed. This allows the shields to protect the camera lenses from impacts and scratches when not in use, but can be moved aside when taking pictures.

CN213720377U-patent-drawing

20. Mobile Phone Case with Buckle Structure and Elastic Corner Bumps for Impact Absorption

GUANGZHOU CHAOTUO PLASTIC PRODUCTS CO LTD, 2021

Fully protected mobile phone case with a buckle structure that prevents screen damage when the phone is dropped. The case has an opening for inserting the phone, with elastic anti-drop bumps at the corners near the opening. When the phone is dropped, the bumps collide with the ground and absorb impact, preventing the screen from hitting the ground directly. An anti-fall plate covers the opening and closes between the bumps. This provides additional protection for the screen.

21. Mobile Phone Case with Corner Protective Covers, Shock-Absorbing Plate with Internal Buffer Spring, and Heat Dissipation Port

ZHUOMEI LEATHER TECH DONGGUAN CO LTD, ZHUOMEI LEATHER TECHNOLOGY CO LTD, 2021

Shock-absorbing and anti-drop mobile phone case with improved protection against drops and falls. The case has features like corner protective covers, a shock-absorbing plate with a buffer spring inside, and a heat dissipation port. These elements along with the main case material of polycarbonate provide better shock absorption, drop protection, and heat dissipation compared to traditional phone cases. The corner covers prevent wear on the phone edges when dropped, the shock plate and spring cushion impacts, and the port allows heat escape.

22. Mobile Device Case with Integrated Heat Sink, Shock-Absorbing Blocks, and Component Protection Features

PANG HEDONG, 2021

Mobile device case with improved drop protection and heat dissipation compared to existing cases. The case has features like a heat sink, shock-absorbing blocks, and a bracket slot to better protect the device from drops and prevent heat buildup. It also has a camera hole with a lens cover, flash hole, microphone hole, and speaker hole for improved front-facing component protection. The case connects to a frame using a card slot and buckle, and the corners are fixed with blocks. A heat dissipation plate inside the case connects to an outer net to transfer heat.

23. Mobile Device Case with Dual-Material Frame and Removable Inner Cushioning Structure

CHOTON EXCELLENT TECH SHENZHEN CO LTD, CHOTON EXCELLENT TECHNOLOGY CO LTD, 2021

A protective case for mobile devices like smartphones that provides improved shock absorption and drop protection compared to traditional soft cases. The case has a main body with a frame and cover, and an inner frame that protrudes out through the frame's holes. The outer frame material has lower elasticity than the inner frame material. This creates a cushioning effect when the device falls, as the inner frame deforms more than the outer frame. The case also has features like recessed areas for buttons and holes for functional components like camera lenses and charging ports. The inner frame can be removable for customization. The case can also have a detachable metal frame around the edges and a split design for easier device insertion.

24. Mobile Device Case with Automated Camera Lens Cover Actuation Mechanism

Eric Vélez Justiniano, 2021

This is a mobile device case with a camera lens cover that automatically opens and closes when the phone is unlocked and locked. When the phone is locked, the cover is closed. When the phone is unlocked, the cover automatically opens.

25. Mobile Phone Case with Extended Raised Lip for Camera Lens Protection and Dust Prevention

SHENZHEN XIANGRUIJIA TECH CO LTD, SHENZHEN XIANGRUIJIA TECHNOLOGY CO LTD, 2021

Mobile phone case design that provides better protection for the camera lens and prevents dust accumulation. The case has a raised lip around the camera cutout that extends out further than the back of the case. This creates a lip over the camera lens to prevent scratches and drops from damaging it. It also prevents dust from settling on the lens when the phone is placed face down. The raised lip is formed by extending the upper frame of the case beyond the back surface. This provides additional protection for the camera without adding bulk to the case.

CN212519102U-patent-drawing

26. Smartphone Case with Adjustable Lens Filter Cartridge System

David Graham Clark, 2020

This is a protective case for smartphones that allows lens filters to be added to the phone's camera. The case has openings to expose the camera lens and filter cartridges that can be slid into different positions. The cartridges contain multiple lens filters, such as ND, polarizer, and color filters, that can cover the camera lens when desired.

27. Mobile Phone Case with Integrated Camera Flange, Protruding Shock-Absorbing Strips, and Corner Bumpers

WU XIAOLI, 2020

Shock-absorbing mobile phone case with comprehensive protection features. The case has a bottom plate with a camera cutout and protruding strips on the back. The frame surrounds the bottom plate and has corner bumpers. This design provides protection for the camera, back, and corners of the phone. The flange around the camera cutout prevents the lens from contacting surfaces if the phone is dropped. The protruding strips on the back absorb shocks. The corner bumpers protect the edges of the phone.

CN210724941U-patent-drawing

28. Smartphone Case with Integrated Non-Reflective Camera Hood and Retaining Sheath

BobjGear, LLC, 2020

Protective smartphone case with a built-in camera hood that reduces glare and obstruction when taking photos. The case has a custom fit with a retaining sheath that covers the back and grips the edges of the phone. It has apertures for the camera and flash that surround it with non-reflective hoods. These hoods are shaped and positioned to provide an anti-reflective angle of view compared to the camera lens. This prevents flash glare on photos.

29. Mobile Phone Case with Deployable Impact-Absorbing Mechanism Triggered by Fall Detection Sensors

KIM CHUL BUM, 2020

Safety protective case for mobile phones that protrudes a protective piece when it detects a fall to absorb impact before the phone hits the ground. The case has sensors to detect nearby objects. When no objects are detected, a solenoid releases a binding on the protective piece so it rotates outward. This exposes the piece when the case falls to absorb impact before the phone.

30. Mobile Phone Case with Integrated Camera Protection Sheet and Shock-Absorbing Shell

WANG JIANWEI, 2020

A new type of anti-drop mobile phone case with a camera protection feature to prevent damage when the phone is dropped. The case has a shell with a camera hole. A separate camera protection sheet is attached over the camera hole. It can be a protective lens made of glass or resin, or a convex magnifying glass. This sheet contacts external objects first when the phone falls, shielding the camera from damage.

CN210225513U-patent-drawing

31. Protective Case with Separate Coated Camera and Gasket-Sealed Flash Lens Inserts

OTTER PRODUCTS, LLC, 2020

Protective case for electronic device cameras and flashes that provides improved protection from scratches and damage while also maintaining proper flash and camera functionality. The case has a lens insert that covers the camera and flash. The insert has separate lens portions for the camera and flash. The camera lens has a coated side surface to block light reflections and a thicker bottom portion. The flash lens has a gasket to seal it against the device's back.

32. Protective Mobile Device Case with Coated Lens Assembly and Water-Resistant Microphone Membrane

OTTER PRODUCTS, LLC, 2020

This is a protective case for mobile devices that preserves camera, flash, and microphone functionality without compromising image quality or audio clarity. The case has a custom lens assembly with coated transparent regions that cover the camera and flash while allowing light through, along with an opening for the microphone. A water-resistant membrane covers the microphone opening. The lens coating proportion sizes are optimized to block excess light while maintaining quality.

US10524552B2-patent-drawing

33. Protective Electronic Device Case with Convex Hull Protrusions and Internal Shock Absorbers

BYD Company Limited, BYD COMPANY LTD, 2019

Protective case for electronic devices like smartphones and tablets that provides enhanced impact resistance compared to traditional silicone cases. The case has a housing with a bottom plate and side plate that encloses the device. The outer surface has protrusions called convex hulls that deform on impact to absorb force and protect the device. The case can also have internal shock absorbers like springs and elastic caps that compress and deform on impact. The protrusions and internal shock absorbers provide comprehensive protection against drops and impacts.

CN105704950B-patent-drawing

34. Protective Case with Dual Lens Insert Featuring Flash-Blocking Camera Lens Coating

OTTER PRODUCTS, LLC, 2019

A protective case with a lens insert that covers the camera and flash of an electronic device. The lens insert has a lens covering the camera and a separate lens covering the flash. The camera lens has a coating that blocks light from the flash.

35. Mobile Device Protective Case with Integrated Lens Assembly and Light-Blocking Coated Transparent Cover

OTTER PRODUCTS, LLC, 2019

Protective case for mobile devices with a lens assembly that protects the camera, flash, and microphone while maintaining good optical and audio quality. The lens assembly has a transparent lens covering the camera and flash, with portions coated in light-blocking material to reduce light transmission. A water-resistant membrane covers the microphone.

36. Camera and Flash Protective Cover with Differential Thickness and Light-Blocking Coating

OTTER PRODUCTS, LLC, 2019

Protective cover for camera and flash on electronic devices like smartphones that allows the flash to work properly while still protecting the camera. It involves a lens cover with two parts - one near the camera and one near the flash. The part covering the flash has a thinner distance to the device's back surface than the part covering the camera. Additionally, the flash part has a light-blocking coating on its side surface. These design differences enable proper flash illumination by reducing reflections and blocking light from reaching the camera.

US10355735B2-patent-drawing

37. Smartphone Protective Case with Rotatable Dual-Sided Lighting and Integrated Battery Pack

Jakob Spevak, 2019

A protective case for smartphones that includes a lighting device to provide illumination for both the front and back cameras. The protective case has a rotating housing with lights that can be positioned to face either the front or back when using the corresponding camera. The case also contains a battery pack to power the lights and charge the phone.

US20190121392A1-patent-drawing

38. Mobile Phone Case with L-Shaped Raised Wall for Lens Protection

Shenzhen Bluecore Technology Co., Ltd., 2019

Mobile phone protective case with a lens protection feature. The case has a bottom plate with a camera hole for the phone's lens. But the case also has a supporting wall extending from the outer surface of the bottom plate and surrounding the camera hole. This wall raises and encloses the lens area, preventing it from contacting surfaces and getting scratched when the phone is placed face down. The wall is formed by extending the seam line between the bottom plate and side frame. It includes a longer wall along the length of the case and a shorter wall along the width. They form an L-shaped convex structure around the camera hole.

CN208754371U-patent-drawing

39. Protective Case with Removable Lens Cover and Multi-Dimensional Storage Compartments for Portable Electronic Devices

Ian F. Lebauer, 2019

Protective case for portable electronic devices with attached lens cover that can be removed or folded back to expose the camera when in use. The case has multiple storage compartments of various sizes to hold everyday items. The storage compartments are arranged in different dimensions to maximize storage space while fitting within the case size.

US10244838B2-patent-drawing

40. Camera and Flash Protective Case Lens with Dual-Portion Design and Integrated Light-Blocking Features

OTTER PRODUCTS, LLC, 2019

Camera lens designs for protective cases that allow unobstructed flash output while providing protection for both the camera and flash. The lens has two portions, one for the camera and one for the flash, with the flash portion closer to the device. The camera portion has a partially coated side to block light while the flash portion has a light-blocking gasket.

US20190081652A1-patent-drawing

41. Mobile Device Case with Integrated Elastic Silicone Body, Protrusions, Airbags, and Heat Dissipation Features

Dongguan Quanrun Communication Electronics Co., Ltd., 2018

Protective case for mobile devices with improved drop protection and additional features compared to standard cases. The case has a soft, elastic silicone body with protrusions, airbags, and heat dissipation to absorb impacts and prevent damage. The case has a side shell with circular protrusions, a volume button, and a switch button. The top edge has a convex block and airbag. The bottom has a back shell and charging slot. A heat sink pattern on the back. The side and back shells are integrated. A camera cutout is higher than the camera. A bracket attaches to the back. A rotating shaft connects the bracket to the case. The case provides comprehensive drop protection, shock absorption, camera protection, easy carrying, and customization.

42. Case with Integrated Camera Enhancement Components for Portable Electronic Devices

Conor Penfold, 2018

System and method for using a case and/or skin having various components for improving and/or enhancing a camera (e.g., photographic, video, etc.) feature of a portable electronic device, such as a smartphone. The case has features like telescopic lens, filters, tripod mounts, shutter buttons, battery, storage, backup, heat sensors, and even an auxiliary port to enhance the camera on the phone.

US10015295B1-patent-drawing

43. Mobile Device Case with Edge Protrusions and Corner Impact Absorption

KIM GYEONG JU, Kim Kyung-ju, 2018

Protective case for a mobile device that reduces impact on the display and camera areas when the device is dropped or hit. The case has protrusions at the front and rear edges that prevent direct impact on the display and camera by contacting first. There is also a corner protection section that absorbs impact at the corners. The protrusions and corner protection are formed by bending the case material or adding thickness at those points. This prevents damage to the sensitive areas when the device falls. The case is made of TPU material.

44. Electronic Device Housing with Groove-Embedded Mouth-Shaped Cushioning for Camera Module Protection

SHANGHAI YUDE COMM TECHNOLOGY CO LTD, SHANGHAI YUDE COMMUNICATION TECHNOLOGY CO LTD, 2017

Electronic device with a cushioned housing feature to protect the camera module from damage during drop tests. The device has a groove in the housing with a mouth-shaped cushioning member inside. The camera module sits in the cushioned groove. This provides a buffer for the camera during drops, preventing it from impacting the housing and getting damaged. The cushioning member absorbs the force and protects the camera module.

45. Modular Phone Case with Separate Camera Ring and Multi-Material Construction

SHENZHEN XINYI TECH CO LTD, SHENZHEN XINYI TECHNOLOGY CO LTD, 2016

Lightweight and protective phone case for popular brands like Apple and Samsung. The case has a back shell made of PC or TPU, a TPU border, a TPE shock absorbing block inside the frame, and a camera ring. The camera ring is a separate piece that fits around the phone's camera cutout. The case provides protection without adding bulk and allows full flash coverage when taking pictures. The parts are molded separately and assembled in steps to fuse them together.

46. Two-Part Protective Case with Integrated Rubber Bumper and Hard Shell for Electronic Devices

CIBC BANK USA, 2015

Protective case for electronic devices like smartphones with a two-part design that provides improved drop protection and ease of use compared to single-piece cases. The case has an inner rubber bumper that covers the device ends and absorbs shocks, and an outer hard plastic shell that covers the back. This allows the device to be fully protected while avoiding the drawbacks of rubber cases like excess grip and size. The two parts bond together permanently. The hard shell provides back protection and a smooth surface, while the rubber bumper prevents damage from drops. The opening for the screen allows full access. The case can have features like honeycomb shapes in the hard shell and raised sections to further enhance drop protection.

WO2015023635A1-patent-drawing

Many innovative approaches for producing smartphone cases that safely enclose sensors and cameras are presented in these patents. Integrated lens filters for better performance, smooth, automatic opening and closing mechanisms, and sliding coverings for physical protection are some of them.

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