Sensitive measurements in mass spectrometer (MS) relies on the efficient ion utilization and minimizing losses at the different components of the MS. As ion trajectories depend on multiple factors such as confinement fields, gas dynamics, and physical alignment of various MS ion optics it is crucial to develop MS ion optics that transfer ions efficiently. This is specially the case where the geometries of the ion optics at the interface are different such that the electric field do not match causing to ion losses. Here, we disclose a novel device to efficiently transfer and guide ions into entrance of a planar ion guide or ion optics element. The new device has a planar geometry and consists of two surfaces held at an angle to each other. Importantly the electric field generated in this new device is synchronized and smoothly matches the electric field at downstream ion optics element. The result is ions transmit through the interface with no loss. On each surface of the new device the electrodes are arranged into a converging shape to guide ions from any position at the entrance into the end of the device. Such device also relief the engineering constraints on precise alignment of ion optics at the interface which greatly reduce the cost of building such platforms. Such device can be also used as injection mechanism to e.g. time of flight mass spectrometer pulsar region as the geometry of the ion beam exiting this new device can perfectly match the