Condensation Prevention for Dash Cam Optics

Vehicle-mounted camera assembly and control method to prevent fogging and water droplets on the camera lens. It uses thermal conduction to transfer heat from the vehicle's lights to the camera. The assembly has a thermal conductive module that can be a metal baffle, reflective component, or heat storage material. The module is positioned between the lights and camera. It allows adjustable heat transfer efficiency to control the camera temperature. The lights can always be on as the module regulates heat instead of closing them to reduce fogging. This avoids overheating the camera.

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Vehicle camera module with a heating element to prevent frost, condensation, and freezing on the lens during cold weather. The heating element is a heating film directly attached to the surface of the outermost lens. Power is supplied to the film through a flexible printed circuit board (FPCB) that connects the film and a separate power circuit board inside the camera housing. The FPCB passes through the housing and connects externally to the power circuit board. This allows the camera to heat the lens without needing an indirect heating barrel. The FPCB also has a connector to connect to an external power source.

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Software for dew point and freezing point protection of non-low temperature resistant cameras. The software uses logarithmic calculations based on humidity and temperature theory to determine the dew point and freezing point for a camera. It then provides protection by heating and dehumidifying the camera when the dew point is reached to prevent lens blurring, before freezing point protection kicks in. This avoids negative dew point values that can cause freezing. The software simulates the dynamic dew point changing with temperature to provide optimal protection in variable climates.

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Heating device, method, vehicle, and computer program for an external camera lens on vehicles that prevents frost and fog buildup without degrading image quality. The heating device has a power supply, control module, and heating module with a pattern of silver streaks. The control module analyzes image clarity and enables the heating module when clarity falls below a threshold. It disables heating when clarity exceeds another threshold. This selectively heats the lens surface to prevent frost/fog without requiring high power or long time periods. The control module can also monitor heating parameters and disable heating if they exceed limits.

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A camera assembly control method and device that uses a temperature sensor and a detection element to accurately monitor and heat the camera lens to prevent fogging and snow accumulation in harsh environments. The method involves acquiring the temperature of the lens using a temperature-sensitive element and a detection element, then determining an optimal lens heating scheme based on the lens temperature. This allows targeted and efficient lens heating to prevent fogging and snow buildup without overheating or wasting power.

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Camera module for vehicle cameras that has an integrated heating element to prevent fogging and icing in low temperature conditions. The heating element is wrapped around the outer wall of the lens to keep it clear. The camera module has a monitoring system that detects the temperature at the camera location and feeds it back to the control module. If the temperature falls below a threshold, the control module activates the heating element to prevent fogging and icing.

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Preventing condensation on camera lenses and sensors to improve image quality in cold environments without sacrificing image sensor cooling. The system uses a heater between the lens and sensor to keep the internal temperature above dew point when external conditions are conducive to condensation. This prevents lens and filter fogging. The heater is controlled based on sensor operation and environmental data. Additionally, the camera has a separate sealed cooling assembly for the sensor to maintain low temperature without external humidity affecting it. This prevents condensation inside the assembly. By separating lens and sensor thermally, it allows independent control for fogging prevention.

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Car navigator with an anti-fogging night vision camera to prevent lens fogging in low light or cold conditions. The camera has a heating system to prevent condensation on the lens. The camera is mounted on a fixed plate with a fan, heating device, and heating block. The fan pulls air over the heating block and device to heat the lens. This prevents temperature differences between the inside and outside of the lens causing fogging. The heating block has a ventilation groove and air outlet. A dust-proof net covers the fan opening and the plate has clamping blocks to secure the camera.

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An automotive camera with an integrated induction heater to defrost the lens in cold weather conditions. The camera lens holder has an induction coil etched into its inner surface. When activated, the coil generates heat to defrost the lens. The integrated coil allows compact, scalable and efficient defrosting compared to external heating systems. The camera can be mass produced as a fully integrated unit.

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Lenses of vehicle cameras can freeze or fog up in cold and wet conditions, impairing visibility and safety. A heating device for automotive camera lenses that can melt ice and prevent fogging. The heating device has a ring-shaped heating element that wraps around the camera lens barrel. It is held in place by a tension socket. The device can apply targeted heat directly to the lens barrel to warm the lens surface and prevent ice and fogging. The heating power is controlled based on temperature and recent usage to avoid overheating.

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A vehicle camera system that prevents lens obstructions like dirt, water, and ice from impairing camera visibility by heating the lens. It detects obstructions and increases heating only for moisture/condensation, to prevent fogging. Heating is deactivated for non-moisture obstructions. This prevents overuse and saves energy. The system also has a washer to clean the lens.

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Heating control for a vehicle camera to prevent lens fogging and icing in cold weather. The camera has a lens covered by a flange with a water-repellent treatment on the inner edge. It has two heaters, one for the lens and one for the flange. The heating is controlled based on outside air state and vehicle speed. In mild conditions, just the lens heater is used. In colder or higher speed conditions, both heaters are used to prevent lens fogging and flange ice.

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Camera system for vehicles that protects the camera lens from water drops that impair visibility by using a protective element around the lens with a specific opening geometry. The protective element leaves the camera lens exposed through a small opening that captures the necessary view. The remaining lens area is covered to prevent water drops from obstructing the view while reducing overall water exposure.

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Rapidly heating the lens barrel of vehicle cameras to defrost/defog the lens and prevent condensation. The heating device uses an inductive coil that circumscribes the lens barrel to induce eddy currents in the lens components when powered. This rapidly heats the lens without requiring wires into the camera. The inductive heating coil may selectively target portions of the lens barrel while avoiding non-conductive parts. The coil generates a magnetic field that encompass the lens barrel to heat the lens optics.

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A camera with an integrated heating system to remove frost and fog from the lens. The camera has a heating film on the lens surface that can be controlled to heat the glass and prevent frost and fog buildup. The heating film temperature is monitored to ensure it reaches a level to melt the frost. The camera housing seals around the lens to prevent airflow and condensation. The heating film, lens, and housing are sandwiched between press sheets to compress and seal the lens.

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Defogging a camera lens in humid environments to prevent fogging and improve image quality. The defogging method involves continuously monitoring the dew point temperature inside the camera and using that to determine when fogging is likely. When fogging is detected, the camera heats the lens to above the dew point temperature to prevent condensation. By maintaining the lens above the dew point, fogging is prevented without overheating the lens. The defogging system includes a dew point sensor inside the camera to detect when fogging is likely and a heater to warm the lens above the dew point.

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Vehicle-mounted camera heater and control method to prevent fogging and icing of camera lenses in cold weather. The heater has a camera housing with a see-through cover, a heating element, a defrosting scraper, and an air pump. The heating element inside the housing warms the lens to prevent icing. The defrosting scraper wipes away any remaining ice. An air pump inside the housing draws in hot air from the vehicle's AC system to further defog the lens. A control board manages the heating, air pump, and solenoid valves.

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Heater control for in-vehicle cameras that improves safety and efficiency by automatically turning on and off the lens heater based on conditions like image quality, temperature, and rain. The heater control device determines if conditions warrant heating the camera lens based on factors like image clarity, outside temperature, and rain presence. When conditions indicate potential lens abnormalities, it turns on the heater to prevent issues. This prevents manual errors in activating the heater and ensures timely lens protection. When conditions indicate clear lenses, it turns off the heater to conserve power. This prevents unnecessary heater runtime that could lead to lens fogging or degradation.

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Heating device for vehicle cameras that effectively removes contaminants like frost and moisture from the lens in all weather conditions. The device is directly attached to the camera lens using optical adhesive films. It has a heating film sandwiched between the adhesive films with an electrode part on some of the film. The electrode shape matches the film plane. The adhesive films and lens contact form a sealed unit. This prevents fogging and condensation on the lens. The heating film contains hyperaccelerated thermal material nanodots arranged in a lattice pattern. This provides uniform heating and rapid temperature rise to quickly remove contaminants. The device can also have a wiper mechanism on the lens housing to physically wipe away contaminants.

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Vehicle camera that effectively prevents moisture ingress. A camera module is housed inside a vehicle body and sealed with a grommet and cover that obstruct moisture entry. The grommet contacts the camera module and housing preventing moisture penetration. Adhesion protrusions on the grommet contact the module and housing to seal gaps. The cover has a hydraulic protrusion that transmits pressure to the grommet when submerged, further sealing.

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Vehicle camera that actively prevents lens dew condensation by utilizing heat generated by the image processing circuitry. The camera has a heat dissipation structure with a surface facing the lens. This allows the lens to be heated by the circuitry heat, preventing dew formation.

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Vehicle vision system with heated camera lenses to prevent fogging and ice buildup. The system uses thin resistive foil or strips that partially surround the camera lens barrel to heat it. This melts away moisture and prevents fogging or icing. The heated lens is particularly beneficial for cameras mounted on vehicle exteriors that are exposed to cold temperatures and humidity fluctuations. It improves visibility in adverse weather conditions by keeping the lens clear. The system may also have a lens washer attachment for cleaning the lens.

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Vehicle-mounted optical system that detects and removes condensation on cameras mounted inside a vehicle. The system uses image analysis to detect condensation on the inside of the vehicle's glass. When condensation is detected, a condensation removal device is activated to clear the glass. This ensures reliable operation of the vehicle's cameras for applications like autonomous driving by preventing fogging or condensation from obstructing the camera's view.

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An anti-fog and anti-glare device for cameras that prevents fogging and overexposure due to temperature and humidity differences. The device has a heated housing around the camera lens to prevent fogging in humid conditions. It also has a barrier around the housing to prevent glare from side lights. Sensors monitor temperature and humidity inside and outside the housing. A controller regulates the heating plate and relay based on the readings to maintain optimal conditions.

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Vehicle camera with lens defogging system to prevent fogging and improve visibility. The camera has a heating element around the lens that contacts the inner surface of the outermost lens element. This heats the lens to prevent condensation and fogging in cold or humid conditions. The camera captures exterior images for vehicle vision systems, and the heating element prevents fogging that could reduce visibility.

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Vehicle vision system with lens heating to prevent fogging and ice buildup on camera lenses, particularly in cold weather. The system uses an electrically conductive heating ring around the outer barrel of the lens that contacts the inner surface of the outermost lens element. When powered, it heats the outermost lens to prevent fogging and condensation. The heating ring is disposed at an annular recessed surface on the outer part of the lens barrel. This allows the outermost lens element to be mounted over it. The heating ring contacts the inner surface of the lens element to heat it when powered.

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Reducing condensation inside vehicle cameras when the heater is turned off to prevent fogging and water droplets. The camera heating element continues to provide low-level heat for a predetermined time after the vehicle heater is turned off. This prevents rapid temperature drops that cause condensation. The extended heating prevents excessive dew formation inside the camera housing and reduces the risk of water droplets on the window.

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Heating device for fog-free lenses in surveillance cameras that can be controlled. The device has a circuit board, lens body, sealing ring, insulating tube, and buttons. The lens body attaches to the board and has a groove for a spring connected to a button. The lens attaches to an inner mounting housing that attaches to the insulating tube. Inside the tube is a heating resistor. The housing has a groove for a temperature sensor and a groove for another button. The buttons extend through springs to access the grooves. The design allows separate control of lens temperature and defogging sensor.

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An anti-fog camera lens for automobiles that prevents fogging of the lens in cold or humid conditions. The lens has an integrated heating device located above the camera. Electric power is delivered to the heating element through a wire. The heating element generates heat around the lens to maintain a stable temperature that prevents fog condensation on the lens. This keeps the lens clear in foggy conditions.

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Preventing fogging of camera lenses in sealed modules like those used in cars to improve driving safety. The method involves monitoring the internal temperature and humidity, calculating the dew point, and comparing it to the external lens temperature. If the lens temperature is close to the dew point, the lens is heated to prevent fogging. If the lens temperature exceeds the dew point plus a threshold, heating stops. This prevents overheating.

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Camera module with a heating electrode on the lens to prevent fogging when temperature differences cause condensation. A transparent electrode is formed on the lens surface to allow light transmission. This heats the lens surface when power is applied to the electrode, preventing moisture from condensing on the lens. The electrode can be on any lens surface, but forming it along the rim exposes the lens center to minimize light blockage.

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An automatic demisting camera module with integrated heating to prevent fogging and condensation on the camera lens in humid environments. The module has a transparent heating film inside the housing, directly in front of the camera lens, to heat and remove fog and condensation. This provides automatic defogging without requiring external heating elements or power-hungry deicing methods. The heating film is mounted inside the housing near the lens to directly heat it and prevent fogging.

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Camera module with integrated heating to prevent lens fogging and icing in cold or wet environments. The module has a heating element that can be activated to warm the lens, preventing condensation and ice buildup on the lens surface. This allows the camera to continue capturing clear images in harsh conditions where regular lenses would become fogged or iced over. The heating is controlled automatically based on environmental conditions or user input.

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Camera module and dew condensation prevention system for cameras used in vehicles like autonomous cars. The camera module has a lens assembly with a circular shape to minimize distortion and have wide horizontal views. A cylindrical barrel surrounds the lens assembly. A heating member is formed along the outer barrel surface to transfer heat to the outermost lens. This prevents condensation on the lens when driven in humid conditions. The heating member can be controlled based on temperature and humidity sensors.

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An optical detection system for vehicles that reduces the impact of dirt, rain, and frost on camera optics. The system uses a protective housing with a grating positioned in front of the camera lens and an airflow generator that directs air onto the grating. This prevents dirt, rain, and frost from directly contacting the camera lens and obstructing the view. The grating allows airflow to pass through while blocking larger particles.

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Camera module with automatic defrosting and defogging capability in cold or humid environments. The module has a heating device on the lens connected to a microcontroller. The microcontroller receives temperature data from a sensor and controls the lens heater based on the temperature to prevent fogging and frosting on the lens.

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A lens device that prevents lens fogging in changing temperature environments. The lens has a heat conduction means that can transfer heat from the exterior of the lens device to the lens. A control part regulates the heat conduction state based on exterior and lens temperatures. In colder conditions, it allows heat transfer to prevent lens fogging. In warmer conditions, it stops heat transfer to prevent overheating the lens. This prevents condensation on the lens when the device is moved from indoor to outdoor environments with rapid temperature changes.

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An anti-fog camera with an integrated defogging system that prevents lens fogging in humid low temperature environments. The camera mounts on a Z-shaped bracket with a detachable U-shaped defogging box below. The box has fans, heaters, exhaust, and sensors to maintain controlled airflow and temperature around the lens. The fans induce airflow, the heaters warm the air, and the exhaust removes moisture. The airflow prevents fogging by preventing condensation. The detachable design allows easy access for maintenance.

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Rear-view camera for vehicles that has an embedded defroster and proximity switch to clear lens obstructions and unlock trunk when touched. The camera lens has a coating of indium-tin-oxide (ITO) that can be powered to heat the lens and remove fog, condensation, snow, or ice. The ITO coating also acts as a sensor to detect obstruction type. When touched, it releases the trunk latch. The coating shape covers a larger portion of the lens and is on the inside to protect from elements.

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Air conditioning device for cameras used in vehicle body tempering applications like drying painted bodies. The device has an inner housing with a heat sink to cool the camera sensors, and an outer housing with a heat source to prevent condensation. This allows cooling the temperature-sensitive camera components without risking condensation on the camera surface. A condensate trap between the sink and source collects any internal condensate. The sink and source can be connected to a refrigeration system.

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An anti-fog camera design to prevent lens fogging in cold environments. The camera has a heated lens and a drying sheet inside a sealed cavity. The lens has a heating device with a heat insulating layer and graphite heating body. The heating device generates heat based on ambient temperature sensor readings to prevent fogging. A drying sheet inside the cavity absorbs moisture to keep it dry. This active defogging approach disperses water vapor quickly and prevents condensation on the lens. A waterproof membrane covers the cavity to prevent airflow convection and moisture entry.

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Camera design to prevent fogging or moisture inside the housing, particularly for exterior vehicle cameras. The camera housing has channels that allow air to flow between the camera components. Metal strips or wires are placed in the channels to conduct heat and prevent condensation. Heat sinks are also used near the image sensor. This allows air convection inside the camera to prevent fogging, even when the camera is mounted at an angle.

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Monitoring device for vehicles with heating wires in the camera module case to prevent lens fogging and moisture. The device has a camera module for front or rear vehicle monitoring, and a case with a heating wire around the lens to remove moisture from the lens. This prevents fogging when it rains or there's temperature differences between inside and outside the vehicle. The heating wire is near the lens, not the whole case, to avoid complex sealing. The lens can be transparent.

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Camera module with a heating function to prevent lens fogging and frosting in cold and humid environments. The module has a lens barrel with a locking gland, a front lens, and an indirect heating device that heats the lens without contact. This prevents condensation and ice buildup on the lens surface by warming it from behind.

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Heater for camera lenses of advanced driver assistance systems to prevent image degradation from frost, ice, fog, and water spray in adverse weather conditions. The heater attaches to the camera lens and has a housing with an opening for the lens and a separate opening for a transparent window. A heater element outside the window area heats the window by conduction and convection to repel and dissipate liquid and frozen water. This prevents lens fogging and degradation without blocking the lens view. The heater can use materials like PTC that regulate temperature automatically for simpler control.

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Refrigeration camera with an anti-condensation feature to prevent condensation on the camera lens and filter at low temperatures. The camera has a heating assembly inside the housing that heats the filter glass to prevent condensation. The heating assembly consists of a resistance wire sandwiched between two films. The assembly attaches to the housing flange and is heated indirectly by the housing. Temperature sensors monitor the housing, filter, and environment to maintain a temperature above the dew point. This allows the camera to operate in wider temperature and humidity ranges without condensation issues.

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Preventing image distortion in vehicle cameras caused by moisture on the lens by heating it to remove the moisture. The device has a control unit that detects image distortion from moisture on the lens and then turns on a heated wire connected to the lens to evaporate the moisture.

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