Lazy load for Unity Resource

LazyResource.cs

using UnityEngine;

public class LazyResource<T> where T : UnityEngine.Object
{
    public T _value;
    public T Value
    {
        get
        {
            if (_value == null)
            {
                lock (this)
                {
                    if (_value == null)
                    {
                        _value = Resources.Load<T>(path);
                    }
                }
            }

            return _value;
        }
    }

    private string path;

    public LazyResource(string path)
    {
        this.path = path;
    }
}