I think virtually all analogies that try to explain the Trinity fail to some extent. That’s why the Church has wisely called the Trinity a mystery. In the light analogy, I see the problem, from the Christian as well as the Jewish standpoint, is that you are dividing the white light into parts which together form the full spectrum of light. However, according to the Christian understanding of the Trinity, G-d is NOT divisible even though He consists of three distinct Persons. For Jews and Muslims, even the idea that G-d reveals Himself in three distinct Persons comes too close to a breach of monotheism.
Another question relative to the topic: what do Jews, Muslims, and Christians think about Oneness Pentecostals who worship Jesus only, not the Father and not the Holy Spirit? Do they worship the same G-d?