Development Concept The demand for mini-dome cameras has grown within the surveillance camera market, chiefly due to ease of installation and increased cost-performance. Higher quality has also become a requirement for the low-end 3" class mini-dome camera in recent years.
Previous mini-dome cameras have used Vari-Focal lenses that require manual zoom and focus adjustment. However, the need for more precise focus adjustment ability in Mega-Pixel class cameras has increased the amount of time and effort required during installation, creating a need for remote focus capability. The number of outdoor installations of mini-dome cameras has also increased, which has led to a greater need for remote zoom functionality. Tamron has developed a 2 Mega-Pixel/Full HD/IR compatible compact zoom lens to meet these needs. This new product delivers the convenience of a zoom lens in a size that fits the low-end mini-dome housing.
The zoom and focus can be remotely controlled using precision stepper motors, allowing implementation of continuous zoom and auto-focus functionality. The DC-iris is equipped with a Hall Effect sensor, providing position feedback to allow precise iris control. The integrated IR-cut filter switching mechanism can also be remotely controlled, allowing a smooth transition from day mode to night mode.
Compact design that allows installation within 3" mini-dome cameras
The lenses feature a compact design that allows installation in low-end 3" mini-dome camera bodies, ensuring compatibility with a wide range of camera markets.
The wide-angle, standard 3.0-9mm type and medium telephoto 9-22mm type lenses are approximately the same size, which allows them to be used in mini-dome cameras that use common platforms.
2 Mega-pixel/Full HD compatibility, 9-22mm medium telephoto range, and F/1.6 aperture (Model DF020)
The lens covers a 9-22mm medium telephoto range for both indoor and outdoor monitoring.
Tamron's proprietary optical design provides 2 mega-pixel/Full HD compatibility and high image quality from wide angles to telephoto ranges.
Compatible with remote control applications
A Stepper motor is used for focus and zoom. A lead-screw type motor with minimal backlash has been used for remote control operations via networks, which allows accurate control of the focus and zoom.
4. Maintains focus at night and under near-IR light conditions to deliver crystal clear image quality monitoring, 24-hours a day
Optical aberrations are corrected for visible and near-IR wavelengths, providing sharp, clear video images even at night when a wide range of different wavelengths are present.
Structural design that provides space for the mounting of near-IR LEDs
6. Peripheral resolution has been further improved compared to existing mega-pixel lenses
Image circle design that takes into consideration various CMOS sensor sizes
Environmentally - friendly design