Projection Vertexometer
Maker and role
Nippon Kogaku K. K., Manufacturer
Production date
1978
Object detail
Accession number
2018.1.21
Maker
Production period
Description
Projection Vertexometer. This object was used to check and verify the power of contact lenses. The power range was +/- 25.00 dioptres.
Rectangular-shaped object with a cream coloured body. The front of the object is grey with a black screen with a circular grid. Around the top half of the circle is a scale starting from 0 to 180 in increments of 10. There is a black metal shade which extends out at the front, shielding the screen from light. The back panel of the object is grey. At the top is a metal plate that reads, “PROJECTION / VERTEXOMETER / Nikon.” Below is a grille and at the bottom is a small label which reads “NIPPON KOGAKU K. K. / MADE IN JAPAN”. The object has four circular black feet and a square base. There is a black power cord which is connected to the unit on the left.
On the front below the screen is a small plate to the left which reads “Nikon”. Below the screen is a rectangular box with a black circular button. To the right is a black lever, with another button behind it. Below this is another rectangular box with an adjustment knob on the right. On the top of the rectangle is a cylindrical contact lens mount, which reads “D. 7mm” in white. This item is held down with tape. At the bottom of this section is a black horizontal dial with a scale from 0 to 170 in increments of 10.
Rectangular-shaped object with a cream coloured body. The front of the object is grey with a black screen with a circular grid. Around the top half of the circle is a scale starting from 0 to 180 in increments of 10. There is a black metal shade which extends out at the front, shielding the screen from light. The back panel of the object is grey. At the top is a metal plate that reads, “PROJECTION / VERTEXOMETER / Nikon.” Below is a grille and at the bottom is a small label which reads “NIPPON KOGAKU K. K. / MADE IN JAPAN”. The object has four circular black feet and a square base. There is a black power cord which is connected to the unit on the left.
On the front below the screen is a small plate to the left which reads “Nikon”. Below the screen is a rectangular box with a black circular button. To the right is a black lever, with another button behind it. Below this is another rectangular box with an adjustment knob on the right. On the top of the rectangle is a cylindrical contact lens mount, which reads “D. 7mm” in white. This item is held down with tape. At the bottom of this section is a black horizontal dial with a scale from 0 to 170 in increments of 10.
Marks
PROJECTION / VERTEXOMETER / Nikon Maker's Plate
"NIPPON KOGAKU K.K. / MADE IN JAPAN Sticker
Nikon Maker's Plate
D. 7mm Engraved
"NIPPON KOGAKU K.K. / MADE IN JAPAN Sticker
Nikon Maker's Plate
D. 7mm Engraved
Media/Materials
Other name
Dioptometer
Collection
Credit Line
Nippon Kogaku K. K.. 1978. Projection Vertexometer, 2018.1.21. The Museum of Transport and Technology (MOTAT).
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