cah01mp
- function：
- close loop autofocus
- pixels：
- 16m/12m
compared with the old products, what are the improvements（structure, material, technology, process, performance and use function）
with the increasing mobile phone camera pixel camera, auto focus motor dynamic axis tilt angle requirements increasingly strict, consider upgrading the camera autofocus motor can meet the high pixel application, the new products of high pixel camera autofocus motor has the following improvement:
| |
old products |
new product |
utility |
| material quality |
/ |
/ |
/ |
| structure |
open loop |
hall sensor can feedback position, form closed loop, focus more accurate |
with small gesture, pdaf and other control software, the focusing effect can be achieved dual camera |
| design |
fixed magnet and movable coil |
in addition to the fixed magnet and the active coil, the design and simulation of the magnet and the hall are also needed. in addition, the design analysis of resonance suppression is also necessary |
closed-loop control can be performed without generating vibration problems |
| technology |
base and yoke are fixed with glue |
base and yoke use electric welding fixation |
increasing bonding strength and mass production |
| performance |
postural difference≦50um |
postural difference≦8um |
the module is easy to control and adjust |
| use function |
open-loop poor focus accuracy |
close-loop the coke has good accuracy and fast reaction speed |
pdaf with the control software, the focusing effect can be achieved dual camera |
| |
old products |
| material quality |
/ |
| structure |
open loop |
| design |
fixed magnet and movable coil |
| technology |
base and yoke are fixed with glue |
| performance |
postural difference≦50um |
| use function |
open-loop poor focus accuracy |
| |
new product |
| material quality |
/ |
| structure |
hall sensor can feedback position, form closed loop, focus more accurate |
| design |
in addition to the fixed magnet and the active coil, the design and simulation of the magnet and the hall are also needed. in addition, the design analysis of resonance suppression is also necessary |
| technology |
base and yoke use electric welding fixation |
| performance |
postural difference≦8um |
| use function |
close-loop the coke has good accuracy and fast reaction speed |
| |
utility |
| material quality |
/ |
| structure |
with small gesture, pdaf and other control software, the focusing effect can be achieved dual camera |
| design |
closed-loop control can be performed without generating vibration problems |
| technology |
increasing bonding strength and mass production |
| performance |
the module is easy to control and adjust |
| use function |
pdaf with the control software, the focusing effect can be achieved dual camera |
