反射式望远镜设计

On-Axis Reflective Telescopes Dall-Kirkham (TDK-9) z Cassegrain

Dall-Kirkham (TDK-9) Telescope

Focusing Dall-Kirkham Telescope (TDK-9)

• Primary Diameter: 22" (560 mm)

• Focal Length: 10 meters

• Obscuration: 5% area

• Outline Dimensions: 26" φ X 58.5" length (66 mm φ X 149 mm length)

• System Wavefront: 1 λ at 0.63 µ

• High Quality black body calibration collimator system design, for

3 to 15 micron region

• Aluminum Housing

Dall-Kirkham (TDK-9) Outline Drawing Afocal Dall-Kirkham Telescope (TDKA-10)

• 10 X magnification

• Primary (Output) Mirror Aperture: 10.5"

(267 mm)

• System Wavefront:λ / 6 Peak-to-Peak (λ = 0.6328 µ)

• Central Obscuration: <4% Area

• Outline Dimensions

Diameter: 13" (330 mm)

Length: 28" (710 mm)

• Weight: 75 lbs. (34 kg)

Cassegrain Telescope

(TC-5.6)

Narrow field of view, all-reflective, IR telescope designed for low scatter and diffraction limited performance @ 3.5 microns. • Primary Diameter: 6.8" (172 mm)

• EFL Telescope: 37.8" (960 mm)

• BFL from Primary: 5.1" (129 mm)

• f/5.6 central obscuration < 15% area

• 40/20 mirror surface finish

• Mirror Surface Accuracy:λ / 2 @ 0.63 µ • Temperature Range: 25º ± 10º C

• Coatings: 99% reflectivity, enhanced silver • Outline Dimensions: 9.1" φ X 12.32"

length (230 mm φ X 310 mm length)

• Blur Circle Diameter @ 0.63 µ (80% energy)

1) On-Axis: 40 µ

2) ½ field (4 minutes): 40 µ

3) Full Field (8 minutes): 60 µ

• Baffled Housing to reduce scattering for entrance angles up to 10° off-axis

Space Optics

Research Labs

7 Stuart Road

Chelmsford, MA 01824

Phone: 978-250-8640

Fax: 978-256-5605

Large Aperture Telescope

Light Collecting Telescope (TLB 8.3-36)

The large aperture light collecting telescope is an economical solution to your LIDAR needs. This large aperture "Light Bucket" is extremely lightweight, compact and efficient, providing broadband performance over the UV, Visible, and IR range in a laboratory / outdoor environment. Durable coatings may be peaked for specified wavelengths.

Specifications

System f/#: f/8.3

Primary (Input) Mirror Aperture: 36" (910 mm) Blur Spot Diameter: 1" (25 mm) Effective Focal Length: 300" (7620 mm) Back Working Distance: 11" (280 mm) Central Obscuration: 6% Area Mirror Coating: Protected Aluminum Outline Dimensions

Diameter : 39" (990 mm) Length: 60" (1520 mm)

Weight: 230 lbs. (104 kg)

Shipping Weight: 300 lbs. (136 kg)

Light Collecting Telescope