Other Optical Devices - Optics and Vision Test Review Flashcards
Answer the question -
List and define parts of the eye
Iris: The iris is the only muscle in your eye that controls the pupil, regulating the amount of light that enters the eye. This muscle can dilate or contract your pupil, if the iris squeezes or releases your pupil, the amount of light reaches the rest of your, changing your eyes.
Cornea: Allows the light to enter the inside and protects the structure inside the eye, covering the iris, and focusing the light rays on the retina.
Lens: The lens works together with the cornea to focus light correctly on the retina.
Optica Nerve: They are the connecting cables the relay messages from your eyes to your brain to create visual images, which play a crucial role in your ability to see.
Retina: Retina is an important part of the eye as it captures the incoming photons and transmits them along neuronal pathways as both electrical and chemicals signals for the brain to perceive a visual pictures.
Pupil: The round openings in the center of the iris, that allows light into your eyes.
Answer the question -
List and define parts of the camera
Camera Lens: Allows you to control the amount of light that enters your camera.
Shutter/Aperture: A device that controls or prevents how much light reaches the fil or digital sensor.
Image Sensor: The piece of hardware inside the camera that captures light and converts it into signals which results in an imagine.
Optical Nerve: A cable that connects to a part of the camera that displays the image, by transmitting visual information from the image sensor to the the display.
Answer the question -
Compare parts of the eyes and parts of the camera
The Iris is the Diaphragm and the Cornea, which is part of the eye is similar to the lens of a Camera because is focuses the light to the retina or image sensor. The eyelid of the eye is like the shutter of the eye, controlling the amount of light that passes through the Reina or image sensor. The Optical nerve is the same as the cable in a camera, connecting it to a brain or display to display the picture.
Define the following word: Hyperopia
Hyperopia is known as farsighted, is it a reflective error of the eye that makes it difficult to see nearly objects clearly. It occurs when the eyeball is to short or the cornea is too flat causing light to focus behind the retina instead of on it. Therefore objects close up to you are blurry while objects that are father are clearer.
Define the following word: Myopia
Myopia is known as nearsighted, it is a reflective error of the eye that makes it difficult to see far objects clearly. Myopia occurs when the eyeball is to larger or if the cornea is too large causing the focus of the light in front of the retina. So far objects appear blurry while close objects appear clearly.
