PL1590UN

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PL1590UN Application Field and Working Principle

The Pl1590UN is a lens from the optics family. It is a revision of the already existing Pl1590 lens offering essentially better results for its users. The difference lies in the lens’ construction providing superior, high-resolution performance than the original lens.

The lens is designed with two distinct elements; a 9 mm focal length lens exhibiting a narrow field of view and a second one also of 9 mm length and capturing a wider field of view. The two lenses have one common element to them; both lenses are built with a solid frame material and fitted with low and high dispersion glass elements for superior sharpness and contrast. The difference lies in the contrast ratio achieved - the revision lens offers an ratio between 30:1 to 40:1 in good lighting conditions.

Application Field

The revised lens is suitable for use in consumer cameras, systems used in video surveillance, broadcast applications and video cameras. The lens is beneficial for users who need superior image quality without having to resort to manual focusing. The lens provides its users with high resolution images and a video signal that is remarkable in its clarity.

Working Principle

The PL1590UN works on the auto focus principle. The lens mechanism receives signals from the camera’s CCD chip and focuses on the subject in the frame. Two lenses allow proper back focus and the lens receives the electrically signals for the focus time. The PIR and M plug provide fine calibration for the lens’ focusing to assure optimal image quality results.

The revised lens also features the AES shutter that lets it take better quality images even in fast-moving objects; the response time is improved and the image sharpness is optimal. The lens also features an adjustable iris setting for optimal light transmitted through the lens. It also features brightness enhancement filter to reduce flaring and distortion.

Conclusion

The Pl1590UN lens offers superior performance to its users with low and high dispersion glass elements, an integrated AES shutter, adjustable iris setting and brightness enhancement filter. The lens has a robust housing and is suited for use in consumer cameras, video surveillance, broadcast systems and video cameras. The lens works on the auto focus principle receiving signals from the CCD and focusing on the subject in the frame.

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