Magnification device and assembly
A magnification device including a housing having a distal open end and a proximal open end is disclosed. The housing includes an optical system including one or more objective lenses adjacent the distal open end, and one or more eye lenses adjacent the proximal open end, the optical system produced a desired level of magnification; and a filtering system having first filter selectively filtering a first group of wavelengths and a second filter selective filtering a second group of wavelengths. The first and second filters having an optical density selected based on a magnification level of the optical system. A vision enhancing assembly including a carrier device and one or more magnification devices coupled to the carrier device is also disclosed, wherein the magnification devices include filters that have optical densities based on a magnification level.
1. A vision enhancing assembly, comprising:
a carrier device;
one or more magnification devices coupled to the carrier device, each of said magnification devices comprising:
a housing comprising a distal open end and a proximal open end;
an optical system comprising at least one objective lens mounted in said housing adjacent said distal open end and at least one eye lens mounted in said housing adjacent said proximal open end, said optical system achieving a desired level of magnification; and
a filtering system comprising:
an absorptive filter system comprising:
a first absorptive lens mounted adjacent, and external, to said distal open end, and
a second absorptive lens mounted adjacent, and external, to said proximal open end, said absorptive filter system configured to:
attenuate a first set of wavelengths, wherein an optical density of said first absorptive lens and an optical density of said second absorptive lens are selected to achieve an optical density, for said absorptive filter system, based on said desired level of magnification of said optical system; and
a reflective filter system comprising:
a first reflective lens mounted adjacent, and external, to said distal open end, and
a second reflective lens mounted adjacent, and external to said proximal open end, wherein an optical density of said first reflective lens and an optical density of said second reflective lens are selected to achieve an optical density for said reflective filter system based on said desired level of magnification, said reflective filter system configured to:
attenuate a second set of wavelengths, wherein wavelengths within said first set of wavelengths are different than wavelengths in the second set of wavelengths.
2. The vision enhancing assembly according to claim 1 , wherein said carrier device is an eyeglass frame with carrier lenses.
3. The vision enhancing assembly according to claim 1 , wherein at least one of said at least one objective lenses is convex.
4. The vision enhancing assembly according to claim 1 , wherein at least one of said at least one objective lenses is substantially rectangular.
5. The vision enhancing assembly according to claim 1 , wherein at least one of said at least one objective lenses is substantially circular.
6. The vision enhancing assembly according to claim 1 , wherein said optical system is Galilean.
7. The vision enhancing assembly according to claim 6 , wherein at least one of said at least one eye lens is concave or negative.
8. The vision enhancing assembly according to claim 1 , wherein said optical system is Keplerian.
9. The vision enhancing assembly according to claim 8 , wherein at least one of said at least one eye lens is convex or plus.
10. The vision enhancing assembly according to claim 1 , wherein said optical system further comprising:
a spectacle correction lens mounted in said housing adjacent said proximal open end.
11. The vision enhancing assembly according to claim 1 , wherein said first absorptive lens comprises:
a plurality of absorptive lenses, each of said plurality of absorptive lenses having an optical density less than said optical density of said absorptive filter system, and
said second absorptive lens comprises:
a plurality of absorptive lenses, each of said plurality of absorptive lenses having an optical density less than said optical density of said absorptive filter system,
wherein a combined optical density of said plurality of absorptive lenses of said first absorptive lens and said plurality of absorptive lenses of said second absorptive lens is at least equal to said optical density of said absorptive filter system.
12. The vision enhancing assembly according to claim 11 , wherein said plurality of absorptive lens of said first absorptive lens are positioned in front of said at least one objective lens and said plurality of absorptive lens of said second absorptive lens are positioned behind said at least one eye lens.
13. The vision enhancing assembly according to claim 11 , wherein said first reflective lens comprises:
a plurality of reflective lenses, each of said plurality of reflective lenses having an optical density less than said optical density of said reflective filter system; and
said second reflective lens comprises:
a plurality of reflective lenses, each of said plurality of reflective lenses having an optical density less than said optical density of said reflective filter system wherein a combined optical density of each of said plurality of reflective lenses of said first reflective lens and said plurality of reflective lens of said second reflective lens is at least equal to said optical density of said reflective filter system.
14. The vision enhancing assembly according to claim 13 , wherein said plurality of reflective lens of said first reflective lens are positioned in front of said at least one objective lens and said plurality of reflective lens of said second reflective lens are positioned behind said at least one eye lenses.
15. The vision enhancing assembly according to claim 13 , wherein said optical density of said first absorptive lens and said optical density of said second absorptive lens are selected from a group consisting of: same and different.
16. The vision enhancing assembly according to claim 1 , wherein said optical density of said first reflective lens and said optical density of said second reflective lens are selected from a group consisting of: same and different.