What is it…? Haptic technology is a tactile feedback technology

which takes advantage of the sense of touch by applying forces, vibrations, or motions to the user.

Haptics (pronounced HAP-tiks) is the science of applying touch (tactile) sensation and control to interaction with computer applications.

A haptic device gives people a sense of touch with computer-generated environments, so that when virtual objects are touched, they seem real and tangible.

By using special input/output devices (joysticks, data gloves, or other devices), users can receive feedback from computer applications in the form of felt sensations in the hand or other parts of the body. 

• Virtual reality is a form of human-computer interaction providing a virtual environment that one can explore through direct interaction with our senses.

• User should be able to touch the virtual object and feel a response from it.

• In order to complete the imitation of the real world one should be able to interact with the environment and get a feedback.

• This feedback is called Haptic Feedback.

Continued…  Haptics is implemented through different type of

interactions with a haptic device communicating with the computer.

These interactions can be categorized into the different types of touch sensations a user can receive:

Tactile Feedback: Refers to the sensations felt by the skin. It allows the user to feel things such as the texture of surfaces, temperature and vibration.

Force Feedback: It reproduces the directional forces that can result from solid boundaries. E.g. the weight of virtual objects, inertia, etc.

How it works..?

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Common interface devices like mouse and joystick are only input devices. No feedback.

Haptic devices are input-output devices where output is in the form of sensation .

COMMONLY USED HAPTIC DEVICES 1.PHANTOM  Provides a 3D touch to the virtual objects.When the user move his finger, then he could really feel the shape and size of the virtual 3D object that has been already programmed.

2.CYBER GRASP The Cyber Grasp system fits over the users entire hand like an exoskeleton and adds resistive force feedback to each finger . Adapted to different size of the fingers .Located on the back of the hand .

MEDICAL APPLICATIONS Sense of touch is crucial for medical training. Various haptic interfaces for medical

simulation may prove especially useful for training.

COMPUTER AND VIDEO GAMES Haptic feedback is commonly used in arcade

games, especially racing video games. Disney Research, Pittsburg (DRP) has shown off a revolutionary technology called ‘Surround Haptics’ that can bring real life experience in video gaming and film watching.

MOBILE DEVICES Tactile haptic feedback is becoming common in cellular devices.

VIRTUAL REALITYHaptics are gaining widespread acceptance as a key part of virtual reality systems.

ARTS AND DESIGNHaptics is used in virtual arts, such as sound synthesis or graphic design and animation.ROBOTICS-Haptic technology is also widely used in teleoperation, or telerobotics.

FUTURE VISIONHOLOGRAPHIC INTERACTION The feedback allows the user to interact with a hologram and actually receive tactile response using radiation pressure.MEDICAL APPLICATION Use of a central workstation from which surgeons would perform operations in various locations; with machine setup and patient preparation performed by local nursing staff. TEXTILE INDUSTRY User could study and feel the texture and quality of material during the sale of cloth through internet.

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