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  2. Optimum HDTV viewing distance - Wikipedia

    en.wikipedia.org/wiki/Optimum_HDTV_viewing_distance

    0.8 H. This table can be used in a number of ways : Find the optimal distance for a given screen. Example: for a 4K UHD screen 140 cm high (112 inches diagonal), the optimal distance is 140 × 1.6 = 224 cm. Find the right screen size. Example: for a 1080 HDTV used at a distance of 250 cm, you need to find a screen whose height is close to ...

  3. Field of view - Wikipedia

    en.wikipedia.org/wiki/Field_of_view

    Angular field of view is typically specified in degrees, while linear field of view is a ratio of lengths. For example, binoculars with a 5.8 degree (angular) field of view might be advertised as having a (linear) field of view of 102 mm per meter. As long as the FOV is less than about 10 degrees or so, the following approximation formulas ...

  4. Field of view in video games - Wikipedia

    en.wikipedia.org/wiki/Field_of_view_in_video_games

    A field of view. In first person video games, the field of view or field of vision (abbreviated FOV) is the extent of the observable game world that is seen on the display at any given moment. It is typically measured as an angle, although whether this angle is the horizontal, vertical, or diagonal component of the field of view varies from ...

  5. Image sensor format - Wikipedia

    en.wikipedia.org/wiki/Image_sensor_format

    In digital photography, the image sensor format is the shape and size of the image sensor. The image sensor format of a digital camera determines the angle of view of a particular lens when used with a particular sensor. Because the image sensors in many digital cameras are smaller than the 24 mm × 36 mm image area of full-frame 35 mm cameras ...

  6. Hikvision - Wikipedia

    en.wikipedia.org/wiki/Hikvision

    Hangzhou Hikvision Digital Technology Co., Ltd., often shortened to Hikvision, is a Chinese state-owned manufacturer and supplier of video surveillance equipment for civilian and military purposes, headquartered in Hangzhou, Zhejiang.

  7. Pinhole camera - Wikipedia

    en.wikipedia.org/wiki/Pinhole_camera

    A home-made pinhole camera lens. A pinhole camera is a simple camera without a lens but with a tiny aperture (the so-called pinhole)—effectively a light-proof box with a small hole in one side. Light from a scene passes through the aperture and projects an inverted image on the opposite side of the box, which is known as the camera obscura ...

  8. Angle of view (photography) - Wikipedia

    en.wikipedia.org/wiki/Angle_of_view_(photography)

    Angle of view (photography) A camera's angle of view can be measured horizontally, vertically, or diagonally. In photography, angle of view (AOV) [1] describes the angular extent of a given scene that is imaged by a camera. It is used interchangeably with the more general term field of view. It is important to distinguish the angle of view from ...

  9. Solid angle - Wikipedia

    en.wikipedia.org/wiki/Solid_angle

    In geometry, a solid angle (symbol: Ω) is a measure of the amount of the field of view from some particular point that a given object covers. That is, it is a measure of how large the object appears to an observer looking from that point. The point from which the object is viewed is called the apex of the solid angle, and the object is said to ...