Topcon LM-8 User manual
INSTRUCTION MANUAL
LENSMETER
LM
-
8
INTRODUCTION
Thank you for your purchase of the TOPCON
LENSMETER LM-8.
To get the best use of the instrument, be sure
to read this Instruction Manual.
By thoroughly familiarizing yourself with the
instrument and its operations, you will surely
be able to obtain the full benefit of a superior
precision optical instrument.
Keep this Manual for future reference.
Precautions
• As this instrument is a precision equipment, always use it under temperature
and humidity conditions of the normal living environment.
• Install this instrument on a level and stable table, and avoid exposure to
direct sunlight.
• Keep clean the ambient conditions, and turn off the power source and apply
the dustcover when not in use.
• To ensure exact measurement values, take care and keep dust and grease
off the lens and other parts that come into contact with the lens.
• We shall not take any responsibility for overhauling and rebuilding without
our permission.
• Note that, if this instrument is used in an manner other than that specified
herein, it may spoil the protections provided by devices.
1
DISPLAY FOR SAFE USE
In order to encourage the safe use of this product, important warnings are put on the product and
written in the instruction manual.
We suggest that everyone understand the meaning of the following displays and icons before
reading the “Safety Cautions” and text.
DISPLAY
CAUTION
• Personal
injury refers to hurt, burn, electric shock, etc.
• Property damage refers to extensive damage to building or equipment and furniture.
Ignoring this display may lead to personal
injury or property damage.
MEANING
ICONS MEANING
This icon indicates a Hazard Warning.
Specific content is expressed with words or an icon either
inserted in the icon itself or located close to the icon
SAFETY CAUTIONS
CAUTION
Icons Prevention item Page
To prevent pinching your fingers, pay particular attention in
CAUTION
CAUTION
changing the tilt angle of the machine.
To prevent the machine/component parts from tumbling/falling,
operate the machine gently in changing the tilt angle.
2
9
9
USAGE AND MAINTENANCE
Usage:
The Lensmeter is an electric equipment. When using, strictly follow the
instructions in this Manual.
USER MAINTENANCE:
To maintain the safety and performance of the equipment, never attempt to do the
maintenance of parts specified herein, which should be taken care of by our servicemen.
The maintenance items that can be covered by users are the following; for details, follow
the instructions.
Target position adjustment (see page 14)
ESCAPE CLAUSE
• TOPCON shall not take any responsibility for damages due to fire, earthquake,
actions by third person, or the negligence and missuse by the user and used under
unusual conditions.
• TOPCON shall not take any responsibility for damages derived from the inability to
use this equipment, such as a loss of business profit and suspension of business.
• TOPCON shall not take any responsibility for damage caused by operations other
than those described in this Instruction Manual.
WARNING INDICATIONS AND ITS POSITIONS
To secure the safety of this instrument, warning icons are displayed. To ensure the
correct use, follow the instructions of this Manual.
3
CONTENT
INTRODUCTION
DISPLAY FOR SAFE USE
SAFETY PRECAUTIONS
USAGE AND MAINTENANCE
ESCAPE CLAUSE
WARNING INDICATIONS AND
ITS POSITIONS
COMPONENTS
COMPONENT NAME
ACCESSORIES
TARGET IMAGE
TARGET IMAGE
MEASUREMENT PREPARATIONS
1
2
2
3
3
3
5
5
6
MEASUREMENT OF FRAMED
ASTIGMATIC LENS
MEASUREMENT OF CONTACT
LENS
MEASUREMENT OF
PRISMATIC LENS
AXIS MARKING
PRISM COMPENSATOR
PRISM COMPENSATOR
MAINTENANCE
MAINTENANCE
CHECK&ADJUSTMENT
CHECK&ADJUSTMENT
BEFORE REQUESTING
REPAIRING SERVICE
9
9
10
10
11
13
14
MEASUREMENT PREPARATIONS
MEASUREMENT
MEASUREMENT OF
SPHERICAL LENS
MEASUREMENT OF
ASTIGMATIC LENS
4
7
8
8
CHECK ITEMS
SPECIFICATIONS
OPTIONAL ACCESSORIES
15
15
15
COMPONENTS
COMPONENT NAMES
Eyepiece adjustment ring
Power switch
Lens holder lever
Axis marker lever
Lens table adjustment lever
Cell box
Protractor ring
LM-8E
(Diopter power knob with scale)
LM-8
Prism holder
Lens holder
Lens stop
LM-8C
(without axis wheel)
Lens table
Axis wheel
Diopter power knob
Tilt locking lever
ACCESSORIES
(A)
(B)
(C)
(D)
(E)
(A) Contact lens stop .......................... 1 pc.
(B) Silicon cloth ................................... 1 pc.
(C) Dustcover...................................... 1 pc.
(D) UM1 dry cell .................................. 2 pcs.
(E) Lens protection pad ...................... 1 set
5
COMPONENTS
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