concentrating led light irradiation

How to focus the light beam of high power led?
reflector cup : reflector test led shall be of the widest beam concentration available.controlling light distance and sparkling area of led through reflector cup. becauseled can perfect co-work with reflector cup and offer the well mixed light source.
lens: taking the factors of cost and volume into consideration, lens is another option you can choose that small angle lens for your high power led. for example: 9° lens.