The angle of view is translated and tilted Windows Hello, and the selected explanation is helpful to choose the language of the Web camera.

　In order to prevent novel coronavirus from being infected and promote the introduction of telecommuting, more and more people are buying Web cameras. This is for use at Web meetings.

　How should unfamiliar people such as Web cameras choose their products when they buy them for the first time? Here, we strictly select and explain the professional terms that are helpful to the product selection of Web cameras.

映像の滑らかさに影響するフレームレート

　First of all, take a look at the number of pixels, photographic resolution and frame rate that have a great impact on image quality.

　The number of pixels recorded in the specification of the Web camera represents the resolution that can be recognized by the imaging element that converts the light reflected on the lens into a digital signal. It is expressed by 2 million pixels, 2 megapixels and so on.

　The frame rate is represented by photographic resolution and values such as 30fps and 60fps represented by the group. This is a number that shows how many frames can be taken in a second. Fps is an acronym for "frames per second". The higher the image, the smoother the image.

　The angle of view represents the range that can be taken with a Web camera. Expressed in terms of angles. The higher the number, the wider the range of the mapping. Some products are expressed in another language, such as vision, not perspective.

　The view angle has horizontal view angle representing the left and right range, vertical view angle representing the upper and lower range, and diagonal view angle indicating the left and right range and the upper and lower range. According to different products, the recording method is different. Please pay attention when comparing products from a perspective.

　If you only reflect yourself on the front of the camera, a diagonal angle of view of 60-80 degrees is enough. If you want to reflect a large area such as the conference room as a whole or the whiteboard, it is best to choose a product with a diagonal perspective of more than 100 degrees.

　What comes in handy on desktop computers is a Web camera with a microphone. Because it can be used as a sound device, when attending a Web meeting on a desktop computer without a microphone, as long as you use a Web camera with a microphone, you do not need to prepare a microphone.

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The next face certifies that the Windows Hello is useful for manufacturing.