Abstract: A LED lamp includes a number of lenses each of which includes a light emitting surface and a plurality of shades mounted on the light emitting surface. Each of the shades includes a hole whose sectional area in radial direction is equal to that of the light emitting surface. An axial height of the hole follows the formula H ? = ? ? max tan ? ? ? max , wherein H? is the axial height of the hole, ?max is a diameter value of the light emitting surface, and ?max is an output angle of the lens. Accordingly, a work area of the anti-glare LED lamp can be extend the most thereof since the shades block the stray light of a glare area of the LED lamp and strictly separates the work area from the glare area, and no stray light shot into eye in any areas. Therefore, the anti-glare LED lamp can achieve light distribution as designed without glare under cooperation of the lenses and the shades.

Abstract: An LED lamp includes a lens which forms a light emitting surface and a shade mounted on the light emitting surface. Each of the shades includes a hole whose sectional area in radial direction is equal to that of the light emitting surface, an axial height of the hole following the formula of H ? = ? ? max tan ? ? ? max , wherein H? is the axial height of the hole, ?max is a diameter value of the light emitting surface, and ?max is an output angle of the lens. Accordingly, a work area of the LED lamp can be extended since the shade shields the stray light of a glare area of the LED lamp and strictly separates the work area from the glare area, and no stray light escapes. Therefore, the LED lamp can achieve light distribution as designed without glare under cooperation of the lens and the shade.