Palo Alto, Calif. Designed specifically to provide illumination in the automatic focus function of digital still cameras under low-light conditions, and at distances up to 3 meters, the new high-brightness light-emitting diode (LED) from Agilent Technologies Inc. claims to offer the brightest auto-focus LED with a typical light output of 18 candela (at 20 mA).
With dimensions of 4.80 (L) x 4.80 mm (W), the new ASMT-FJ10 also features the industry's smallest package footprint. The die uses aluminum indium gallium phosphate (AlInGaP) material technology to provide high luminous efficiency over a wide range of drive currents, up to a maximum of 50 mA.
Previously, cameras used infrared-emitting (IR) LEDs as the light source for auto-focusing under low-light conditions because only IR LEDs provided sufficient light output for the application, explained the company. The use of visible light means that the same auto-focusing sensor is used under both low-light and ordinary conditions, whereas IR requires a separate sensor. Since the orange 612-nm LED provides visible illumination, the same device can also be used as a red-eye reduction lamp and serve as an indicator that the camera's self-timer is operating, according to the company.
The Agilent ASMT-FJ10 is a lead-free, surface-mount dome lamp using an optimized untinted, non-diffused lens to provide a high luminous intensity with a narrow 8-degree radiation pattern (half-value angle). When installed in a camera without additional collimating optics these LEDs meet Class 1 eye-safety requirements of IEC/EN 60825-1 (2001) under all conditions of operation and single fault failure. The molded package is compatible with lead-free infrared (IR) soldering processes. Click here for more information.
The ASMT-FJ10 is supplied on 16-mm tape on 15-inch (380 mm) diameter reels. Samples and production quantities are available now. Pricing is $0.35 each in moderate quantities. Delivery is four weeks.
Agilent Technologies Inc., 1-408-530-8400, www.agilent.com