Page 72 - Lenses

To Order, call toll free: 1-877-7SURPLUS

MADDOX ROD LENS, 13MM DIA

Used in vision tests, the Maddox rod lens has a number of molded glass grooves (cylinders) through which a spot of light appears as a streak perpendicular to the cylinders axis. Our understanding is that they are used to uncover latent squints (phorias). When a distant spot of light is viewed with the Maddox lens in front of one eye, a line will be seen by the eye covered with

lens, while a spot of light is seen with the other eye. The line will be at right angles to the grooves. When the grooves are horizontal, the line will appear vertical. Someone with normal vision will see the line pass through the spot of light, but someone with latent squint will see the light source to one side of the line. 13mm diameter by 3mm thick. Unused.

L3476 $2.50

SET OF 6 IR PYRO FRESNEL LENSES

 

 

 

These were made to be used with the Pyroelectric

 

 

 

 

infrared sensors in security devices such as burglar

 

 

alarms. These lens arrays were made by Fresnel

 

 

Technologies, Inc. We don't have a clue about focal

 

 

length or which devices these were made to fit. You

 

 

get a set of 6, at least 4 have totally different charac-

 

 

teristics such as focal length, beam configuration, etc.

 

 

We have no way of testing them. Each of the 6 lenses is made up of multi-

ple fresnel arrays.

 

 

L3480

$12.00

 

 

 

3" DIAMETER PCX CONDENSER LENS, 4" FOCAL LENGTH MINT!

 

 

 

Unused plano convex lenses in mint condition in the

 

 

 

 

original "made in Japan" packaging. Appears to be

 

 

Crown glass. Edge thickness is 2mm, center thickness is

 

 

15mm. Uncoated. We have a nice quantity of these if

 

 

you want to incorporate them into your project!

 

 

L3561

$5.00 or 10 for $40.00

PRECISION FUJI 13MM SQUARE PCV CYLINDRICAL LENS -

17MM FL This was made by the Fuji Photo Optical Company in Japan. Cylinder lenses are used to transform a point of light into a line image. We believe this was used on a camera as some sort of adapter. Fuji part number 05090. Precision coated optics, -17mm focal length. New/Unused!

L3587 $6.50

Page 74
Image 74
Tasco 1575 Maddox ROD LENS, 13MM DIA, SET of 6 IR Pyro Fresnel Lenses, Diameter PCX Condenser LENS, 4 Focal Length Mint

1575 specifications

The Tasco 1575 is a high-quality spotting scope designed for outdoor enthusiasts, birdwatchers, and hunters who seek superior optics and performance. This versatile instrument is engineered with advanced technologies and precision manufacturing that make it a standout choice in the field of optical equipment.

One of the main features of the Tasco 1575 is its powerful 15-75x magnification capability. This wide range allows users to zoom in on distant subjects with remarkable clarity, making it ideal for observing wildlife or surveying landscapes. The scope is equipped with a superior quality objective lens, which not only enhances light transmission but also offers exceptional brightness and color fidelity. This ensures that users can enjoy crisp, detailed images even in low-light conditions.

The Tasco 1575 is also designed with a durable and robust construction. Its waterproof and fog-proof design makes it suitable for use in various weather conditions, allowing users to focus solely on their observations without worrying about equipment failure. The rubberized exterior provides a secure grip and added protection against impacts, ensuring that the scope can withstand the rigors of outdoor adventures.

In terms of portability, the Tasco 1575 is relatively lightweight, making it easy to carry during long excursions. Additionally, it comes with a comfortable tripod, providing stability for prolonged viewing sessions. This feature is particularly beneficial for spotting distant details that require steady observation.

One of the key technologies integrated into the Tasco 1575 is its multi-coated optics. This technology minimizes glare and maximizes light transmission, resulting in sharp images with minimal distortion. The eyepiece features a comfortable design that accommodates users wearing glasses, ensuring a pleasant viewing experience for all.

Overall, the Tasco 1575 combines high magnification with durable construction and advanced optics, making it an excellent choice for users seeking a reliable spotting scope for various outdoor applications. Whether for leisurely birdwatching, hunting expeditions, or nature observation, the Tasco 1575 stands out as an exceptional tool that meets the demands of avid outdoor enthusiasts. Its blend of features, technologies, and characteristics ensures that users can capture the beauty of the natural world with confidence and clarity.