Shulou(Shulou.com)11/24 Report--

CTOnews.com Sept. 8, today, Ofeiguang announced that it has released a variable aperture camera module. By adding a variable aperture motor in the front end of the Lens, the single lens can be adjusted from F1.4 → F2.0 → F2.8 → F4.0 to different aperture, so that the module can physically adjust the aperture from hardware, and is no longer limited to the change of aperture through software algorithms.

▲ Ofi variable aperture camera module | Picture from Ofei, the same below

▲ variable aperture display effect

O'Figuang said that the so-called camera aperture refers to the size of the aperture that allows light to enter the opening in the sensor. In the case of the shutter unchanged, the larger the aperture, the more light, the picture is brighter; the smaller the aperture, the darker the picture.

According to reports, the Ofi variable aperture camera module uses large-size photosensitive components with a large aperture lens of F1.4, and at the same time adds a variable aperture motor on the outer surface of the Lens. The variable aperture motor drives the opening and closing of six blades, so that the module can adjust the aperture from F1.4 (4.0mm) → F2.0 (2.9mm) → F2.8 (2.05mm) → F4.0 (1.44mm). And each aperture can be switched quickly in 20ms. In addition, the module has a full-stroke closed-loop control of F1.4 → F4.0, and the switching of any aperture of a single module can be realized by software optimization.

▲ different aperture adjustable

CTOnews.com learned that Ofeiguang pointed out that by introducing the variable aperture technology, the Ofi variable aperture camera module can automatically switch the aperture size and control the amount of light input, so that the mobile phone can use only a single camera module, without the assistance of other lenses, it can accurately match bright and dim light scenes under complex light conditions, and easily switch between the virtual background of large aperture and the sharp depth of field of small aperture.

In places where the light is strong, you can reduce the aperture to bring a clearer picture, while in low light or at night, increasing the aperture can get more exposure to reduce the noise in the picture. That is, better pictures can be taken by using different sizes of aperture in different light and dark scenes. In addition, according to the difference of the subject, you can easily switch between the size of the aperture. A large aperture can blur the background and highlight the characters, as well as a shallow depth of field, so a small aperture may be a better choice when shooting landscape photos.

Schematic diagram of the effect of ▲ with different aperture depth of field

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