Takahashi began manufacturing
telescopes in 1967 their 35th year of business. They began and remain in the
sand casting business today.
Their first model was TS-65
a 65mm x 900mm achromat. By 1969 they produced their first 65mm triplet semi-apochromat
and 100mm f/10 reflector in 1969.
The TS80 built in April
of 1972 was the first triplet apochromat Takahashi telescope built. Then in
1973 their first fluorite triplet telescope was used too photograph the total
solar eclipse on June 29th of that year in Africa. It was an 80mm x 1200mm and
in the same year they produced their first equatorial mount with a polar telescope.
In 1977 Takahashi introduced
their second triplet fluorite apochromat the TS-90 a 90mm x 1000mm and the 90S
mount and the famous JP mount in 1979. The NJP mount as it is called today is
still in production. The JP and NJP mounts can be converted to Takahashi’s
Temma “go to” system. This is a testament to its timeless design.
Then followed by the introduction of famous Sky Patrol portable mount in 1981,
this mount was a favorite for eclipse chasers. It features a polar alignment
telescope in the R.A. shaft and integral 40mm guide scope. In that year the
fluorite Series FC 65, 78, 100, and 125 were introduced. This series remained
in production until 1994.
Takahashi developed the camera angle adjuster which is a bearing device that
allows the camera or ocular to be rotated 360° without loss of focus. This
rotator device is still used today for all Takahashi focuser from the 2”
to 4” focusers and all astrographs.
From this time Takahashi
used a compression ring ocular holder to provide precise centering of the ocular
and optics of the telescope.
In 1983 introduced their
Epsilon Series of Hyperbolic flat field astrographs with the 130, 160, 200,
250 and 300. Takahashi was able to perfect the process for grinding hyperbolic
mirrors and is doing so today for its current Epsilons and corrected RC astrographs.
This was also the year they introduced the prototype FCT-150 fluorite triplet
apochromat and the revolutionary EM-2000 mount which used electric clutches
and had a direct read out of R.A. and Dec. This mount could be transported to
remote sites because it broke down into three parts.
In 1985 the triplet FCT
Series included a 65, 76, 100, 125 and 150mm fluorite triplets. The Mewlon Series
Dall-Kirkham Cassegrain telescopes were the next series in sizes of 180, 210,
250 and 300mm were developed along with the CN-212, a convertible 212mm classical
Cassegrain f/12 and corrected Newtonian convertible telescope.
In 1989 Takahashi introduced
their famous TSC-225: a 225mm Schmidt-Cassegrain with innovations such as 10
baffles in the baffle tube and a rear cell fan for cooling of the optics. The
225 used white German optical glass for its corrector plate. Ever the innovator
Takahashi produced the carbon fiber Epsilon-250 in 1992 closely followed by
the carbon fiber Epsilon-210 hyperbolic astrographs.
Takahashi also makes observatory
telescopes which include: 350mm hyperbolic astrographs, 300 and 400mm Cassegrains,
200, 250 and 300mm triplet apochromatic refractors and the large EM-3500 mounts
to carry them.
Takahashi’s manufacture
of refractors, Newtonian reflectors, Cassegrain/Newtonians, classical Cassegrains,
hyperbolic astrographs, corrected Baker RC astrographs, mounts and oculars makes
it one of the most versatile companies of its type in the world.
The current line of Ortho
Apochromatic refractors use a design that is absolutely color free, will include
a 110mm, 130mm [currently produced], 150mm [introduced 06/05] and a 180mm. Coming
also is a line of Ortho Astrographs.
Their manufacturing facilities
are located in Urii, Japan with their headquarters located in the Itabahsi prefecture
of Tokyo. The facilities include the main assembly and design facility where
the instruments and optics designed, are tested and assembled. The second is
the sand casting factory. The third is the facility where the observatory mounts
the EM-3500 and EM-2500 are assembled along with the machining shop next door
to their warehouse facility. The fourth is the mirror grinding, polishing and
testing building.
Takahashi’s staff
includes: optical, design and mechanical engineers many of whom are amateur
astronomers, who have discovered new asteroids one of which was named Urii in
honor of the city where the Takahashi manufacturing facilities are located.