Tamron announced two models Mega-Pixel/IR-Corrected P-Iris Vari-Focal Lens for Integrated Cameras: Model DF010QA3 and Model DF010Q03.

Press Release
Melrose Jewelers

Tamron DF010QA3




December 22, 2011

Mega-Pixel/IR-Corrected P-Iris Vari-Focal Lens for Integrated Cameras with Motorized Zoom and Focus Announcing the 1/3"-format 3.0-9mm F/1.2 Model DF010QA3

Tamron Co., Ltd. (headquarters: Saitama City; President: Morio Ono) announced today the release of Model DF010QA3, a 1/3" 3.0-9mm F/1.2 P-iris vari-focal lens for integrated cameras with motorized zoom and focus, supporting mega-pixel resolutions and infrared.

Development Background
Demand for mini-dome and other integrated cameras is on the rise in the security camera market due to their installation efficiency and cost advantages. Recently, the integrated camera market has experienced a shift toward higher image resolutions. Tamron addressed this market need in 2010 with the Model DF010NA, a 3.0-9mm F/1.2 vari-focal lens for integrated cameras with motorized zoom and focus.

In addition, the development of image sensors with higher pixel counts has led to demand for higher definition in monitoring images in various environments. Existing lenses could not fine-tune the iris to match the environment, so image quality degradation due to diffraction at smaller aperture in bright areas was common. Tamron has addressed this issue with Model DF010QA3, a vari-focal lens with motorized zoom and focus and P-iris technology incorporating a bipolar drive stepper motor for fine-tuning the iris. This enhancement raises the installation efficiency of the integrated mega-pixel camera and enables the iris to be fine-tuned in order to produce high-definition, high-contrast monitoring images.



Main Features
1. Stepper motor design allows the precise control of the iris setting
There is often a drastic drop in image quality with ordinary lenses due to diffraction phenomenon caused by small apertures. Normally, a galvanometer is used to control the iris of the lens but precise adjustments of the aperture to a desired position were not possible. By using a stepper motor to control the iris, this lens is capable of adjusting the aperture to a position that does not cause diffraction, enabling an appropriate exposure level by utilizing the camera shutter speed. The result is the ability to record high quality, high contrast images, even in bright outdoor areas. This fine-tune control allows the user to acquire excellent image quality while at the same time achieve good depth of field at most installations.

2. Motorized zoom and focus.
Zoom and focus are remotely adjustable after installation of the dome-cover. Original motor and gearbox designs provide the exact precision in zoom and focus adjustment required of mega-pixel cameras.

3. Realizes standard 3.0-9mm range and F/1.2 aperture along with mega-pixel resolution.
Unique optical design realizes high resolution and high contrast from the image center to the periphery.
Covers the standard 3.0-9mm range while achieving a fast aperture of F/1.2.

4. Compact design is ready for installation on popular 3-inch mini-dome camerasfor use in a wide range of applications.

5. Infrared switching mechanism provides clear image quality with no focus shift under nighttime near-infrared lighting conditions for true 24-hour surveillance.

6. Further improvement in peripheral resolution over conventional mega-pixel lenses.

7. The effective image circle was designed with consideration of the diversity of CMOS sensor sizes.

8. Environmentally safe design.



Tamron DF010Q03

Mega-Pixel/IR-Corrected P-Iris Vari-Focal Lens for Integrated Cameras Announcing the 1/3"-format 3.0-9mm F/1.2 Model DF010Q03

Model DF010Q03: a P-iris vari-focal lens for integrated cameras supporting mega-pixel resolutions and infrared, with a 1/3" imager size, 3.0-9.0mm focal length, and an F/1.2 aperture.

Development Background
Demand for compact, integrated cameras is on the rise in the mega-pixel security camera market due to their installation efficiency and cost advantages. Tamron brought high-definition monitoring to the mega-pixel security camera market in 2008 with the Model DF010, a 3.0-9mm F/1.2 vari-focal lens for integrated cameras that supports both mega-pixel resolutions and infrared.

In addition, the spread of mini-dome cameras and development of image sensors with higher pixel counts has led to a strong demand for higher definition in monitoring images. Existing lenses could not fine-tune the iris to match the environment, so image quality degradation due to diffraction at smaller aperture in bright areas was common. Tamron has addressed this issue with Model DF010Q03, a vari-focal lens with P-iris technology incorporating a bipolar drive stepper motor for fine-tuning the iris. This enhancement produces high-definition, high-contrast monitoring images in a broader range of camera installation environments.

Main Features
1. Stepper motor design allows the precise control of the iris setting There is often a drastic drop in image quality with ordinary lenses due to a diffraction phenomenon caused by small apertures. Normally, a galvanometer is used to control the iris of the lens but precise adjustments of the aperture to a desired position were not possible. By using a stepper motor to control the iris, this lens is capable of adjusting the aperture to a position that does not cause diffraction, enabling an appropriate exposure level by utilizing the camera shutter speed.
The result is the ability to record high quality, high contrast images, even in bright outdoor areas. This fine-tune control allows the user to acquire excellent image quality while at the same time achieve good depth of field at most installations.

2. While maintaining resolution above a mega-pixel, the lens delivers a standard range of 3.0-9mm, and F/1.2 brightness. Tamron’s proprietary optical design achieve high resolution and high contrast not only in the center, but also at the image corners.

3. Compact design is ready for installation on popular 3-inch mini-dome cameras.

4. An infrared switching mechanism enables 24-hour surveillance, providing clear image quality even at night and near infrared lighting conditions, achieving true 24-hour surveillance.

5. Further improvement in corner resolution is realized over earlier model lenses with more than a mega-pixel in resolution.

6. Attention is paid to diverse CMOS sensor size in the image circle design.

7. Gear rings on the control ring enable remote control of focus and zoom.

8. The lens is designed as an environmentally sensitive product.

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