Highly-Smoothed Surface, High Reflectance, High Quality
![Toroidal Mirrors TRseries](/sites/shimadzu.com/files/opt/products/aspherical/k25cur0000007p3b-img/5iqj1d0000002wut.jpg)
- Shimadzu toroidal mirrors are manufactured by polishing optical glass with highly-smoothed surface.
- Standard coating of Aluminum brings high reflectance in ultraviolet region.
- The newly developed production method secures continuous delivery of stable quality products.
Toroidal mirrors are:
Toroidal mirrors are aspherical mirrors where each curvature of orthogonal two axes (horizontal and vertical one) are different. Barrel or Tire shaped with a rotation axis are available.
![Toroidal mirrors](/sites/shimadzu.com/files/opt/products/aspherical/k25cur0000007p3b-img/5iqj1d0000002wv4.gif)
Difference to spherical mirrors
When a spherical mirror focuses a light from a point source, there appears astigmatism. Toroidal mirrors, however, minimize such astigmatism and make it possible to focus on a small spot. The toroidals are ideal for focusing and/or aberration correction devices for spectroscopes.
![Difference to spherical mirrors](/sites/shimadzu.com/files/opt/products/aspherical/k25cur0000007p3b-img/o00022-2.jpg)
Product List(Table of Code Number)
Code Number*1 | Dimensions W×H×T (mm) |
Deflection Angle*2 2θ(°) |
Curvature Rh (mm) |
Curvature Rh tolerance |
Curvature Rv (mm) |
Curvature*3 Ratio(Rv/Rh) tolerance |
Incident distance/ Exit distance*4 ℓ (mm) |
---|---|---|---|---|---|---|---|
TR052-17A2025 | 20×25×3.0 | 34 | 52 | 0.8% | 47.6 | 0.8% | 50 |
TR091-30A2025 | 20×25×3.0 | 60 | 91 | 0.8% | 68.2 | 0.8% | 79 |
TR232-24A3030 | 30×30×4.4 | 48 | 232.18 | 0.8% | 194.03 | 0.8% | 212 |
TR234-19A3035 | 30×35×6.0 | 39 | 234.19 | 0.8% | 208.25 | 0.8% | 221 |
TR785-38A7065 | 70×65×7.0 | 76 | 785.4 | 5.0% | 487.6 | 2.0% | 619 |
TR141-45A3520 | 35×20×4.0 | 90 | 141.4 | 0.8% | 70.7 | 0.8% | 100 |
TR282-45A4530 | 45×30×6.0 | 90 | 282.5 | 1.5% | 141.4 | 0.8% | 200 |
TR848-45A5540 | 55×40×8.5 | 90 | 848.5 | 1.5% | 424.3 | 0.8% | 600 |
Standard Specifications
Material | Soda glass |
---|---|
External dimensional tolerance (mm) | ±0.2 (W) x ±0.2 (H) |
Thickness tolerance(mm) | ±0.2(T) |
Effective area | Total area less a 2mm strip around the perimeter |
Coating | Al(aluminum) |
Scratches and digs | 60-40(MIL-O-13830A) |
Schematic Diagram
![Schematic Diagram](/sites/shimadzu.com/files/opt/products/aspherical/k25cur0000007p3b-img/5iqj1d0000002ww7.gif)
- Toroidal mirrors other than standard products are available
- Specifications are subject to change without notice for improvement.
- OEM prices are also available. Please contact us for details.
Optical Mount
![Optical Mount](/sites/shimadzu.com/files/opt/products/aspherical/k25cur0000007p3b-img/5iqj1d000001zyap.gif)
Example of applications
1. Focusing onto an optical fiber
Because of no lens, the toroidal mirrors can focus light of any wavelength without chromatic aberration.
![Focusing onto an optical fiber](/sites/shimadzu.com/files/opt/products/aspherical/k25cur0000007p3b-img/5iqj1d000001zybl.gif)
2. The optical system with 90 ° deflection angle
- (ex : Alternative to 90°parabolic mirrors)
Simple optical layout can be designed and therefore easy optical axis adjustment is possible.
![Alternative to 90°parabolic mirrors](/sites/shimadzu.com/files/opt/products/aspherical/k25cur0000007p3b-img/5iqj1d000001zycp.gif)
3. Compact design
Space-saving design is feasible by minimizing interference from key components.
![Compact design](/sites/shimadzu.com/files/opt/products/aspherical/k25cur0000007p3b-img/5iqj1d000001zycz.gif)
This page may contain references to products that are not available in your country. Please contact us to check the availability of these products in your country.